WO2024150961A1 - Refrigerator - Google Patents

Abstract

A refrigerator, according to one embodiment, comprises: an ice-making compartment that provides a space for the forming ice; a cooler for supplying cold to the ice-making compartment; and an ice maker provided with ice-making cells, which are spaces in which water changes phase into ice by means of the cold, wherein the ice maker comprises: a first tray assembly having a first tray provided with first cells that are part of the ice-making cells; a second tray assembly including a second tray provided with second cells that are another part of the ice-making cells, and a second tray case which has a portion that contacts the second tray or supports the second tray; and a fixing member for fixing the second tray and the second tray case.

Description

refrigerator

This specification relates to refrigerators.

In general, a refrigerator is a home appliance that allows food to be stored at low temperatures in an internal storage space shielded by a door. The refrigerator can cool the inside of the storage space using cold air, thereby keeping the stored food in a refrigerated or frozen state.

Generally, an ice maker for making ice is provided in the freezer compartment of a refrigerator. The ice maker collects water supplied from a water source or a water tank in a tray and then cools the water to create ice. Ice produced by the ice maker may be stored in an ice bin. The user can open the freezer door, access the ice bin, and take out the ice stored in the ice bin.

A refrigerator is disclosed in Korea Patent Publication No. 2021-0005783 (hereinafter referred to as “Prior Document 1”), which is a prior document.

The refrigerator of Prior Document 1 includes a storage room where food is stored; a first tray assembly provided in the storage compartment and forming a part of an ice-making cell, which is a space where water changes phase into ice by the cold; and a second tray assembly forming another part of the ice making cell.

In the case of Prior Literature 1, spherical ice can be created using the first and second tray assemblies, but there is a disadvantage that the user must open the door to use the ice.

In the case of Prior Document 1, since a small amount of ice can be made at one time of ice making, there is a disadvantage in that a long waiting time is required when a large amount of ice is to be used.

Chinese Patent Publication No. 114174740A (hereinafter referred to as “Priority Document 2”), which is a prior document, discloses an ice maker and an ice bank provided in the door of a refrigerator.

Ice stored in the ice bank may be taken out to the outside through a dispenser assembly. The ice maker includes an elastic mold that forms a cavity and is made of an elastic material, a heat exchanger connected to the elastic mold and for freezing water in the cavity, an elevating mechanism for easily discharging the ice from the cavity, and the elevating and lowering device. It includes a driving mechanism for driving the mechanism. The driving mechanism includes a motor and a rotating cam.

In the case of Prior Document 2, ice in the shape of a sphere cannot be created, and in a structure where the lifting mechanism presses the elastic mold from the bottom, there is a disadvantage that it is difficult for the ice to separate from the elastic mold and fall downward. In order to completely separate ice from the elastic mold, the vertical movement width of the lifting mechanism must be increased. In this case, the size of the rotating cam must be increased, which has the disadvantage of increasing the overall size of the ice maker.

One embodiment provides a refrigerator that can increase the number of ice produced during one ice making.

Alternatively or additionally, one embodiment provides a refrigerator in which ice can be smoothly separated from each of a plurality of ice-making cells.

Alternatively or additionally, one embodiment provides a refrigerator in which the shape of the tray can be maintained in its original form after completion of moving.

Alternatively or additionally, one embodiment provides a refrigerator capable of producing sphere-shaped ice in the door.

Alternatively or additionally, one embodiment provides a refrigerator in which produced ice can be easily withdrawn from a dispenser in the door.

A refrigerator according to one aspect may include an ice-making room that provides a space in which ice is produced. The refrigerator may further include a cooler. The cooler may supply or operate to supply cold to the ice-making chamber. The ice-making room may be provided in a cabinet and/or a door.

The refrigerator may further include an ice maker. The ice maker may be placed in the ice making room. The ice maker may include a first tray assembly. The first tray assembly may form a part of an ice-making cell, which is a space where water changes phase into ice due to the cold. The ice maker may further include a second tray assembly. The second tray assembly may form another part of the ice making cell.

The first tray assembly may include a first tray. The second tray assembly may include a second tray.

The first tray may form a first cell that is part of the ice-making cell. The second tray may form a second cell that is another part of the ice-making cell.

The ice maker may further include a second tray case having a portion that contacts the second tray or supports the second tray. The ice maker may further include a fixing member for fixing the second tray and the second tray case.

The second tray may include a cell wall forming the second cell. The second tray may further include an extension portion extending in a direction away from the cell wall. The fixing member may fix the cell wall and the second tray case. The extension portion may include a fastening hole through which the fastening member passes.

The cell wall may include a first surface forming the second cell and a second surface extending from the first surface. The cell wall may further include a peripheral wall extending from the second surface.

The cell wall further comprises a third side, which together with the first side forms the thickness of the cell wall, and a fourth side extending from the third side and which together with the second side forms the thickness of the cell wall. can do. The fixing member may contact one or more of the second and fourth surfaces.

The fixing member may include a fastening part penetrating the second and fourth surfaces. The fastening part may penetrate the second tray case. The ice maker may further include a fastening member fastened to the fastening part. The fastening part may include a hook coupled to the second tray case.

The second tray may include a second cell in the first row and a second cell in the second row.

The fixing member may include a first fastening portion disposed between two adjacent second cells in the first row. The fixing member may further include a second fastening portion disposed between two adjacent second cells in the second row.

The fixing member may further include a connecting body connecting the first fastening part and the second fastening part.

At least one of the first fastening part and the second fastening part may include a first part and a second part extending from the first part. The second part may include a part with a smaller diameter than the first part.

The second portion may penetrate the second tray and the second tray case. A fastening member may be fastened to the second part, or the second part may be coupled to the second tray supporter.

The first tray may include a first cell wall forming the first cell. The second tray may include a second cell wall forming the second cell.

The first cell wall may include a first surface forming the first cell and a second surface extending from the first surface. The second cell wall may include a first surface forming the second cell and a second surface extending from the first surface of the second cell wall.

In the ice making position of the second tray, the second side of the first cell wall may be in contact with the second side of the second cell wall. The fixing member may include a portion facing the second side of the first cell wall.

The second surface of the first cell wall may contact or cover the fixing member.

Two adjacent second cells may be spaced apart by a first distance, and two other adjacent second cells may be spaced apart by a second distance smaller than the first distance. The fixing member may include a portion positioned between two second cells spaced apart by the first distance.

The second tray may include a cell wall forming the second cell and a peripheral wall extending from the cell wall in a direction toward the first tray. In the ice making position, the peripheral wall may surround the first tray. The fixing member may fix the second tray and the second tray case within an area formed by the peripheral wall.

In another aspect, the ice maker includes: a first tray forming a first cell that is part of the ice making cell; a second tray forming a second cell, which is another part of the ice-making cell; It may include a second tray case that contacts the second tray or has a portion that supports the second tray. The ice maker may include a fixing member for fixing the second tray and the second tray case.

The second tray may include a cell wall forming the second cell and an extension portion extending from the cell wall. The second tray supporter may include a receiving portion in which the cell wall is accommodated, and a support surface supporting the extension portion. The fixing member may fix the receiving portion and the cell wall. The extension may be coupled to the support surface.

An ice maker according to another aspect includes a tray forming a plurality of ice making cells; a tray case having a portion that contacts or supports the tray; And it may include a fixing member for fixing the tray and the tray case.

The tray may include a first area having a first surface forming each of the plurality of ice-making cells, and a second area having a second surface extending from the first surface. The fixing member may fix the second area and the tray case.

A refrigerator according to another aspect may include a cabinet having a storage compartment. The refrigerator may further include a door that opens and closes the storage compartment. The refrigerator may further include an ice-making chamber provided in the door. The refrigerator is provided in the ice making room and may further include an ice maker that produces ice. The refrigerator may further include an ice bin that stores ice produced by the ice maker. The refrigerator may further include a dispenser provided on the door and dispensing ice stored in the ice bin.

The ice maker may include a first tray. The ice maker may include the second tray, the second tray case, and the fixing member described above.

According to one embodiment, there is an advantage of increasing the number of ice produced during one ice making.

According to one embodiment, there is an advantage that ice can be smoothly separated from each of the plurality of ice making cells.

According to one embodiment, there is an advantage that the shape of the tray deformed during the moving process can be restored to its original shape after the moving is completed and the original shape can be maintained.

According to one embodiment, there is an advantage in that spherical ice can be created in the refrigerator door.

According to one embodiment, the generated spherical ice can be easily withdrawn from the dispenser on the door.

Figure 1 (A) is a front view of the refrigerator according to this embodiment, and Figure 1 (B) is a view showing one door of the refrigerator in a separated state.

Figure 2 (A) is a perspective view viewed from the front of the first refrigerating compartment door according to this embodiment, and Figure 2 (B) is a perspective view viewed from the rear of the first refrigerating compartment door according to this embodiment.

FIG. 3 (A) is a diagram showing a state in which the basket and filter are separated from the refrigerating compartment door, and FIG. 3 (B) is a diagram showing a state in which the ice-making compartment door and the cover member are separated from the first refrigerating compartment door.

Figure 4 is a cross-sectional view taken along line 4-4 in (A) of Figure 2.

FIG. 5(A) is a view showing a cold air duct connected to the door liner of this embodiment, and FIG. 5(B) is a view showing the ice-making chamber wall of the door liner of this embodiment.

Figure 6 is a view showing a state in which an ice maker is installed on a support member of this embodiment.

Figure 7 is a diagram showing the arrangement relationship between the ice maker and the cold air duct in this embodiment.

Figure 8 (A) is a perspective view of the ice maker according to this embodiment as seen from one upper side, and Figure 8 (B) is a perspective view of the ice maker according to this embodiment as seen from the other upper side.

Figure 9(A) is a front view of the ice maker of this embodiment, and Figure 9(B) is a perspective view of the ice maker of this embodiment viewed from below.

Figure 10 is an exploded perspective view of the ice maker according to this embodiment.

Figure 11 is an exploded front view of the ice maker according to this embodiment.

Figure 12 is a perspective view of the first tray according to this embodiment viewed from above.

Figure 13 is a perspective view of the first tray according to this embodiment viewed from the bottom.

Figure 14 is a top view of the first tray according to this embodiment.

Figure 15 is a perspective view of the first tray cover according to this embodiment as seen from above.

Figure 16 is a perspective view of the first tray cover according to this embodiment viewed from the bottom.

Figure 17 (A) is a perspective view of the second tray assembly according to this embodiment viewed from above. Figure 17 (B) is a perspective view of the second tray assembly according to this embodiment viewed from the bottom.

Figure 18(A) is a cross-sectional view taken along line 18A-18A in Figure 17(A), and Figure 18(B) is a cross-sectional view taken along line 18B-18B in Figure 17(A).

Figure 19 (A) is a perspective view of a fixing member according to this embodiment, and Figure 19 (B) is a view showing a portion of the lower surface of the second tray assembly in a state in which the fixing member is coupled.

Figure 20 (A) is a perspective view of the second tray cover according to this embodiment viewed from above. Figure 20 (B) is a perspective view of the second tray cover according to this embodiment viewed from the bottom.

Figure 21 (A) is a perspective view of the second tray according to this embodiment as seen from one side, and Figure 21 (B) is a perspective view of the second tray according to this embodiment as seen from the other side.

Figure 22(A) is a perspective view of the second tray according to this embodiment as seen from the bottom, and Figure 22(B) is a top view of the second tray according to this embodiment.

Figure 23 (A) is a perspective view of the second tray supporter of this embodiment viewed from above. Figure 23(B) is a perspective view of the second tray supporter of this embodiment viewed from below.

Figure 24 is a cross-sectional view showing a state in which the first tray and the second tray are in contact.

Figure 25 is a cross-sectional view showing the ice maker in the water supply position of the second tray assembly of this embodiment.

Figure 26 is a cross-sectional view showing the ice maker in the ice making position of the second tray assembly of this embodiment.

Figure 27 is a cross-sectional view showing the ice maker with the second tray assembly moved to the full ice detection position during the ice moving process.

Figure 28 (A) is a cross-sectional view showing the ice maker in a state where the first bar of the second pusher is in contact with the second tray, and Figure 28 (B) is a state in which the second bar of the second pusher is in contact with the second tray. A cross-sectional view showing an ice maker in .

Figure 29(A) is a diagram showing a state in which the first bar of the second pusher presses the second tray in the moving position, and Figure 29(B) shows the second bar of the second pusher pressing the second tray in the moving position. Drawing showing pressurized state.

30 is a control block diagram of a refrigerator according to this embodiment.

In this specification, at least one of component A and component B may be interpreted as including component A, component B, or component A+B. Additionally, at least one of component A or component B may be interpreted as including component A, component B, or component A+B.

FIG. 1 (A) is a front view of the refrigerator according to this embodiment, and FIG. 1 (B) is a view showing one door of the refrigerator in a separated state.

Figure 2 (A) is a perspective view viewed from the front of the first refrigerating compartment door according to this embodiment, and Figure 2 (B) is a perspective view viewed from the rear of the first refrigerating compartment door according to this embodiment. FIG. 3 (A) is a diagram showing a state in which the basket and filter are separated from the refrigerating compartment door, and FIG. 3 (B) is a diagram showing a state in which the ice-making compartment door and the cover member are separated from the first refrigerating compartment door.

1 to 3, the refrigerator 1 of this embodiment may include a cabinet 2. The cabinet 2 may be provided with a storage compartment. The refrigerator 1 may further include a door that opens and closes the storage compartment. The door may be movably connected to the cabinet 2.

The storage compartment may include a refrigerating compartment (18). The storage compartment may optionally or additionally include a freezer compartment (19). For example, in Figure 1 (B), the storage compartment is shown to include a refrigerator compartment 18 and a freezer compartment 19.

The door may include a refrigerating compartment door 5 that opens and closes the refrigerating compartment 18. The refrigerating compartment 18 can be opened and closed by one or more refrigerating compartment doors 5. The door may further include a freezer compartment door 30 that opens and closes the freezer compartment 19. The freezer compartment 19 can be opened and closed by one or more freezer doors 30.

Hereinafter, it will be described as an example that the refrigerating compartment 18 is opened and closed by the first refrigerating compartment door 10 and the second refrigerating compartment door 20.

At least one of the first refrigerating compartment door 10 and the second refrigerating compartment door 20 may include a dispenser 11 for dispensing water and/or ice. Of course, depending on the type of refrigerator, the freezer door 30 may be equipped with the dispenser 11.

At least one of the first refrigerating compartment door 10 and the second refrigerating compartment door 20 may include one or more ice makers 200.

If the refrigerator includes a plurality of ice makers, the types of ice produced by the plurality of ice makers may be the same or different. The size (or volume) of ice produced by a plurality of ice makers may be the same or different. The transparency of ice produced from a plurality of ice makers may be the same or different. In a plurality of ice makers, the structure for producing ice and the manner in which the produced ice is separated may be the same or different.

Hereinafter, an example in which the ice maker 200 is provided in the first refrigerating compartment door 10 will be described. Of course, if necessary, an ice maker may be provided in the second refrigerator door 20 or the freezer door 30. At this time, the dispenser 11 and the ice maker may be installed in the same door. Alternatively, it is possible for an additional ice maker to be provided in the refrigerating compartment 18 or the freezing compartment 19.

In Figure 1 (B), the refrigerator 1 is exemplarily shown as a bottom freezer type refrigerator. However, the idea of the present invention can be equally applied to a side-by-side type refrigerator or a top mount type refrigerator. Let me state that it is possible. In the case of a side-by-side type or top-mount type refrigerator, the freezer door may include an ice maker and a dispenser, or the refrigerator compartment door may include an ice maker and a dispenser.

The dispenser 11 may be located in the front of the first refrigerating compartment door 10. A portion of the dispenser 11 may be recessed to the rear to provide a space in which a container can be placed.

The dispenser 11 may discharge ice generated by the ice maker 200. At least a portion of the ice maker 200 may be located higher than the dispenser 11 .

The first refrigerating compartment door 10 may include an outer case 101. The outer case 101 may form the front exterior of the first refrigerating compartment door 10. The first refrigerating compartment door 10 may further include a door liner 102. The door liner 102 may be directly or indirectly connected to the outer case 101. The door liner 102 can open and close the refrigerating compartment 18.

When the outer case 101 and the door liner 102 are connected, an insulating space may be formed between the outer case 101 and the door liner 102. An insulating material may be provided in the insulating space. The insulation material may be formed by curing a foaming liquid injected from the outside. Alternatively, a vacuum insulator may be provided in the insulation space. It is also possible for an insulating material and a vacuum insulator to be provided together in an insulating space.

The refrigerator 1 may include an ice-making chamber 122 that provides a space where ice is produced. The ice-making chamber 122 may be provided in the first refrigerating chamber door 10, for example. The ice maker 200 may be located in the ice making room 122. For example, the door liner 102 may form the ice-making chamber 122. The ice-making chamber 122 may be formed as one surface of the door liner 102 is depressed toward the outer case 101.

The first refrigerating compartment door 10 may further include an ice bin 600 in which ice generated by the ice maker 200 is stored. Ice stored in the ice bin 600 may be discharged to the dispenser 11. The ice bin 600 may be accommodated in the ice making room 122 together with the ice maker 200. The ice bin 600 may be located below the ice maker 200 .

Cold generated in the cooler 110 (see FIG. 30) may be supplied to the ice making room 122. That is, the cooler 110 may be configured to supply cold to the ice-making chamber 122. Alternatively, the cooler 110 may be configured to supply cold to the ice-making chamber 122.

The cooler 110 may be configured to cool the ice-making chamber 122 by including at least one of a refrigerant cycle and a thermoelectric element. For example, cold air for cooling the freezing chamber 19 may be supplied to the ice-making chamber 122 .

The refrigerator 1 has a supply passage 2a that guides the cold air of the freezer compartment 19 or the cold air of the space where the evaporator that generates cold air for cooling the freezer compartment 19 is located to the first refrigerator compartment door 10. ) may further be included. The refrigerator 1 may include a discharge passage 2b that guides cold air discharged from the first refrigerator compartment door 10 to the freezer compartment 19 or a space where the evaporator is located. The supply flow path (2a) and the discharge flow path (2b) may be provided in the cabinet (2).

The first refrigerating compartment door 10 may include a cold air inlet 123a. When the first refrigerating compartment door 10 is closed, the cold air inlet 123a may communicate with the supply passage 2a. The first refrigerating compartment door 10 may further include a cold air outlet 123b. When the first refrigerating compartment door 10 is closed, the cold air outlet 123b may communicate with the discharge passage 2b. The cold air inlet 123a may be formed on one side of the door liner 102. Although not limiting, one side of the door liner 102 faces the wall where the supply passage 2a is located in the refrigerating compartment 18 when the first refrigerating compartment door 10 is closed. The cold air outlet 123b may be formed on one side of the door liner 102. Although not limiting, one side of the door liner 102 faces the wall where the discharge passage 2b is located in the refrigerating compartment 18 when the first refrigerating compartment door 10 is closed.

The ice maker 200 can produce spherical ice. As used herein, “spherical shape” means not only a spherical shape but also a shape similar to a spherical shape geometrically.

The one side of the door liner 102 may include a first side portion 102a and a second side portion 102b having different widths in the front-back direction. The width of the second side portion 102b may be larger than the width of the first side portion 102a. At least one of the cold air inlet 123a and the cold air outlet 123b is of the door liner 102. It may be formed on the second side portion 102b. The second side portion 102b may protrude further toward the refrigerating compartment 18 than the first side portion 102a.

The first refrigerating compartment door 10 may further include an ice-making compartment door 130 that opens and closes the ice-making compartment 122 . The ice-making room door 130 may be an insulated door provided with an insulating material inside. The ice-making compartment door 130 may be rotatably connected to the first refrigerating compartment door 10 by a hinge.

Meanwhile, a basket 136 (first basket) capable of storing food may be connected to the ice-making room door 130. Of course, it is possible for the first refrigerating compartment door 10 to also be provided with a basket 137 (second basket). For example, the second basket 137 may be located below the first basket 136.

A parts space 123 in which parts are accommodated may be formed in the first refrigerating compartment door 10. The component space 123 may accommodate one or more of a valve 750 that controls the flow of water, a filter (not shown) that purifies water, and a water tank 700 that stores water. The component space 123 may be formed by the door liner 102. The first refrigerating compartment door 10 may further include a cover member 132 that covers the parts space 123. The component space 123 may be provided with a holder 125 to which the filter is coupled.

The cover member 132 may include an opening 133. The filter may be coupled to the holder 125 through the opening 133. The second basket 137 may cover the opening 133. When the second basket 137 is separated, the opening 133 may be exposed. The holder 125 may be exposed through the opening 133.

Figure 4 is a cross-sectional view taken along line 4-4 in (A) of Figure 2.

Referring to FIGS. 3 and 4 , the dispenser 11 may include a dispenser housing 11a. The dispenser housing 11a may form a space 11b. A container such as a cup may be placed in the space 11b. Water or ice may be discharged into the space 11b. At least a portion of the ice-making chamber 122 may overlap the parts space 123 in the vertical direction.

The ice maker 200 may overlap the dispenser housing 11a in the vertical direction. The ice bin 600 may overlap the dispenser housing 11a in the vertical direction. As will be described later, the ice maker 200 may include a second pusher 530. The second pusher 530 may overlap the ice bin 600 in the vertical direction. The second pusher 530 may overlap the dispenser housing 11a in the vertical direction.

The ice bin 600 may include an ice discharge unit 630 that operates to discharge stored ice. For example, the ice discharge unit 630 may include a rotating member that rotates.

An ice chute 800 may be placed below the ice making room 122. The ice chute 800 can be opened and closed by the cap duct 820. An ice guide 840 may be located below the ice chute 800. The ice chute 800 may provide a passage through which ice moves. The ice chute 800 may guide ice discharged from the ice bin 600 to the ice guide 840. The ice guide 840 may provide a passage through which ice moves. The ice guide 840 may guide ice to the space 11b. The ice chute 800 may overlap at least a portion of the ice-making chamber 122 in the vertical direction. At least a portion of the ice chute 800 may overlap the ice maker 200 in the vertical direction.

The second pusher 530 may overlap the ice chute 800 in the vertical direction. The second pusher 530 may overlap the cap duct 820 in the vertical direction. The second pusher 530 may overlap the ice guide 840 in the vertical direction.

As will be described later, the ice maker 200 may further include a first pusher 510. The second pusher 530 may be located closer to the outer case 101 than the first pusher 510 . The horizontal distance between the second pusher 530 and the front of the outer case 101 may be shorter than the horizontal distance between the passage formed by the ice chute 800 and the front of the outer case 101.

The first pusher 510 may overlap the ice discharge unit 630 in the vertical direction. The first pusher 510 may overlap the ice chute 800 in the vertical direction. The first pusher 510 may overlap the ice guide 840 in the vertical direction.

The ice maker 200 may overlap the water tank 700 in the vertical direction.

Figure 5 (A) is a diagram showing a cold air duct connected to the door liner of this embodiment, Figure 5 (B) is a diagram showing the ice-making room wall of the door liner of this embodiment, and Figure 6 is a diagram of this embodiment. This is a drawing showing the ice maker installed on the support member. Figure 7 is a diagram showing the arrangement relationship between the ice maker and the cold air duct in this embodiment.

Referring to FIGS. 5 to 7 , the door liner 102 may include an ice-making chamber wall 140 that forms the ice-making chamber 122 . The door liner 102 may further include a peripheral wall 102c. The peripheral wall 102c may be spaced apart from the ice-making chamber wall 140 on the outside of the ice-making chamber wall 140 .

The first refrigerating compartment door 10 may further include a cold air duct 900. The cold air duct 900 may guide cold air introduced through the cold air inlet 123a to the ice-making chamber 122. The cold air duct 900 may guide cold air from the ice-making chamber 122 to the cold air outlet 123b.

The cold air duct 900 may include a first duct 910 forming a first flow path. The first flow path may communicate with the cold air inlet 123a and the ice-making chamber 122. The cold air duct 900 may further include a second duct 920. The second duct 920 may form the first flow path together with the first duct 910.

A portion of the first duct 910 may be aligned with the cold air inlet 123a. A portion of the second duct 920 may contact the ice-making chamber wall 140. A first through hole 140a may be formed in the ice-making chamber wall 140. The first through hole 140a is a supply hole through which cold air is supplied to the ice making chamber 122. A portion of the second duct 920 may be aligned with the first through hole 140a. One surface of the second duct 920 may form the first flow path.

The cold air duct 900 may further include a third duct 930. The third duct 930 may form a second flow path. The second flow path may communicate with the cold air outlet 123a and the ice-making chamber 122. The third duct 930 may form the second flow path together with the second duct 920. For example, the other surface of the second duct 920 may form the second flow path. A second through hole 140b may be formed in the ice-making chamber wall 140. The second through hole 140b is an exhaust hole through which cold air is discharged from the ice making chamber 122. The second through hole 140b may be located below the first through hole 140a. Another portion of the second duct 920 may be aligned with the cold air outlet 123b. A portion of the third duct 930 may be aligned with the second through hole 140b.

When the ice maker 200 is provided in the freezer door 30, the cold air duct 900 may be omitted.

The ice-making room wall 140 may include a front wall 141. The front wall 141 may be a wall facing the outer case 101. The ice-making chamber wall 140 may further include a first side wall 143. The ice-making chamber wall 140 may further include a second side wall 144 located opposite the first side wall 143. The cold air duct 900 may be located between the second side wall 144 and the peripheral wall 102c. The first through hole 140a and the second through hole 140b may be formed in the second side wall 144. The ice-making chamber wall 140 may further include an upper side wall 142. The ice-making chamber wall 140 may further include a lower side wall 148.

The first refrigerating compartment door 10 may further include a support member 150 on which the ice maker 200 is installed. The support member 150 may be installed on the ice-making chamber wall 140. As another example, part or all of the support member 150 may be formed integrally with the ice-making chamber wall 140. Alternatively, the support member 150 may be omitted and the ice maker 200 may be installed on the ice making chamber wall 140. In any case, the ice maker 200 can be described as being supported on the ice making room wall 140.

The support member 150 may include a first member 152. The first member 152 may extend in the vertical direction. The ice maker 200 may be installed on the first member 152. The first member 152 may include an installation member 155. The installation member 155 may be located on the upper side of the first member 152. For example, the first member 152 may be provided with a slot 154 through which a portion of the ice maker 200 passes. A motor assembly for driving the ice discharge unit 630 of the ice bin 600 may be mounted on the first member 152 .

The support member 150 may further include a second member 153. The second member 153 may extend from the first member 152 in the horizontal direction. The ice bin 600 may be seated on the second member 153. An ice hole 153a through which ice passes may be formed in the second member 153.

The ice maker 200 may further include a bracket 220 supported on the support member 150 or on the ice making chamber wall 140. When the ice maker 200 is directly supported on the ice making room wall 140, the ice maker 200 may be supported on the front wall 141.

Figure 8 (A) is a perspective view of the ice maker according to this embodiment as seen from one upper side, Figure 8 (B) is a perspective view of the ice maker according to this embodiment as seen from the other upper side, and Figure 9 (A) is a perspective view of the ice maker according to this embodiment from the other side. This is a front view of the ice maker of this embodiment, and Figure 9 (B) is a perspective view of the ice maker of this embodiment viewed from below. Figure 10 is an exploded perspective view of the ice maker according to this embodiment, and Figure 11 is an exploded front view of the ice maker according to this embodiment.

Referring to FIGS. 4 to 11 , the ice maker 200 may include a first tray assembly 201. The first tray assembly 201 may form a part of the ice making cell 203. The ice maker 200 may further include the second tray assembly 202. The second tray assembly 202 may form another part of the ice making cell 203. The ice-making cell 203 is a space where water changes phase due to cold.

A driving unit 480 may be mounted on one side of the bracket 220. The driving unit 480 may provide driving force to the second tray assembly 202. The first tray assembly 201 may be installed on the bracket 220. The second tray assembly 202 can move relative to the first tray assembly 201. For example, the second tray assembly 202 may move in a straight line, curve, or rotate.

The driving unit 480 may include a motor housing 481. The driving unit 480 may further include a motor accommodated in the motor housing 481 and a power transmission unit. A fastening portion 482 may be formed on the upper side of the motor housing 481. The fastening part 482 may be fastened to the bracket 220 by a fastening member. The driving unit 480 may be located adjacent to the first side wall 143. That is, the driving unit 480 may be located on the opposite side of the first through hole (inlet hole) 140a through which cold air flows.

The ice maker 200 may further include a full ice detection lever 550 for detecting whether the ice bin 600 is full of ice. One end of the full ice detection lever 550 may be connected to the driving unit 480. The other end of the full ice detection lever 550 may be connected to the bracket 220 .

The ice-making chamber wall 140 may be provided with a recess formed at a position corresponding to the driving unit 480. The depression may include a first depression 145a formed in the first side wall 143. The depression may further include a second depression 145b formed in the front wall 141.

The ice-making chamber wall 140 may further include a third recess 145c where a portion of the support member 150 is located. The third recessed portion 145c may be formed in the front wall 141. The third recessed portion 145c may be connected to the second recessed portion 145b.

The ice maker 200 may further include a cold guide. The cold guide may provide a passage for supplying cold to the ice-making cell 203. The cold guide may be provided outside the ice-making cell 203. Hereinafter, it will be explained by taking as an example that the cold is cold air. The cold guide may include a cold air guide 270, for example. Therefore, all configurations described in the cold guide can be understood as configurations of the cold guide. In this specification, a passage for supplying cold to the ice-making cell 203 may be formed by the cold air guide, the first tray, and the first tray cover. Accordingly, at least a portion of each of the cold air guide, the first tray, and the first tray cover may serve as the cold guide.

The cold air guide 270 may be adjacent to or contact the second side wall 144. The cold air guide 270 may be a separate component from the first tray case, which will be described later, or may be a part of the first tray case.

The driving unit 480 may be located on the opposite side of the second side wall 144 or the cold air guide 270 with respect to the ice maker 200. Slots 146 and 147 through which one or more of a water pipe through which water flows and a connector (or wire) for connection to the ice maker 200 pass may be formed in the ice-making chamber wall 140. The slots 146 and 147 may be formed in the front wall 141.

A portion of the water may be phase-changed into ice while contained in a portion of the ice-making cell 203 formed by the first tray assembly 201. Another part of the water may be phase-changed into ice while contained in another part of the ice-making cell 203 formed by the second tray assembly 202. In a state where ice making is completed, a portion of the ice may contact the first tray assembly 201. When ice making is completed, another part of the ice may contact the second tray assembly 202.

The first tray assembly 201 may include a first tray 320. The first tray 320 may form a part of each of the plurality of ice making cells 203.

At least a portion of the first tray 320 may be made of a metal material to facilitate cold air transfer. The first tray assembly 201 may include a first tray case. The first tray case may include a portion that is in contact with the first tray 320 or supported by the first tray 320 .

The first tray case may further include a first tray cover 300. The first tray cover 300 may be combined with the first tray 320. The first tray cover 300 may be located on one side of the first tray 320.

The first tray 320 may be coupled to the bracket 220. For example, the first tray 320 may be coupled to the bracket 220 while the first tray cover 300 is coupled to one side of the first tray 320 . Alternatively, when the bracket 220 is omitted, the first tray 320 may be coupled to the support member 150 or the ice-making chamber wall 140.

The ice maker 200 may further include a heater 330 that provides heat to the ice making cell 203. For example, the first tray assembly 201 may include the heater 330.

The heater 330 may operate at least during the ice-making process after completion of ice-making to provide heat to the first tray 320. The heater 330 may function as a moving heater. The heater 330 may contact the first tray 320 .

The first tray assembly 201 may include a heater case 340 (or heater cover).

The heater case 340 may include a portion that contacts the heater 330 or is supported by the heater 330 . The heater case 340 may cover the heater 330. The heater case 340 may be separate from the first tray cover 300 or may be formed integrally with the first tray cover 300.

The heater case 340 may press the heater 330 toward the first tray 320 . The heater case 340 may be located between the first tray 320 and the first tray cover 300. For example, the heater case 340 may be located above a portion of the first tray 320 and below a portion of the first tray cover 300.

The second tray assembly 202 may include a second tray 360. The second tray 360 may form a different part of each of the plurality of ice making cells 203.

At least a portion of the second tray 360 may be made of a deformable material so that ice can be easily separated.

The second tray assembly 202 may further include a second tray case. The second tray case may include a part that contacts or supports the second tray 360.

The second tray case may include a second tray cover 350. A portion of the second tray cover 350 may be located closer to the first tray 320 than a portion of the second tray 360 . The second tray case may further include a second tray supporter 380. A portion of the second tray supporter 380 may be located farther from the first tray 320 than a portion of the second tray 360 .

The ice maker 200 may further include a water supply unit 240 for supplying water to the ice making cell. The water supply unit 240 may supply water to some of the ice-making cells among the plurality of ice-making cells. The water supply unit 240 may be installed on the bracket 220. The water supply unit 240 may be provided with a slot 242 through which a water pipe passes. The water supply unit 240 may include a through hole 241 through which water is discharged.

The cold air guide 270 may be installed on the bracket 220, the first tray 320, or the first tray cover 300, for example. The cold air guide 270 may guide cold air to the ice-making cell 203. The cold air guide 270 may contact the first tray assembly 201. The cold air guide 270 may contact one or more of the first tray 320 and the first tray cover 300.

A portion of the cold air guide 270 may be located on the opposite side of the driving unit 480 with respect to the first tray assembly 201. Cold air guided by the cold air guide 270 may flow in a direction close to the driving unit 480. By arranging the driving unit 480, the driving unit 480 can be prevented from acting as a flow resistance of cold air.

The ice maker 200 may further include a temperature sensor 710 for detecting the temperature of water or ice in the ice making cell. For example, the temperature sensor 710 may detect the temperature of the first tray 320. The temperature sensor 710 may be mounted on the first tray 320 . The temperature sensor 710 may be covered by an insulation member 720. The insulation member 720 can prevent cold air from directly contacting the temperature sensor 710.

The ice maker 200 may further include transmission units 420 and 421 for transmitting power of the driving unit 480. For example, the power of the driving unit 480 may be transmitted to the second tray assembly 202 by a plurality of transmission units 420 and 421. Among the plurality of transmission units 420 and 421, the first transmission unit 420 may be connected to the driving unit 480. The first transmission unit 420 may be coupled to one side of the second tray supporter 380. Among the plurality of transmission units 420 and 421, the second transmission unit 421 may be coupled to the other side of the second tray supporter 380.

The ice maker 200 may further include a shaft 410 coupled to each of the plurality of transmission units 420 and 421. The first delivery unit 420 may be movably supported on one side of the first tray 320 . The second transmission unit 421 may be movably supported on the other side of the first tray 320.

The materials of the delivery units 420 and 421 and the first tray 320 may be different. The transmission parts 420 and 421 may be, for example, injection-molded plastic products. An intermediate member 416 may be coupled to any one of the transmission units 420 and 421 and the first tray 320 to prevent direct friction between the two components made of different materials. For example, the intermediate member 416 may be coupled to the first tray 320. The transmission units 420 and 421 may pass through the intermediate member 416 and contact the intermediate member 416 .

The ice maker 200 may further include a first pusher 510 that presses the ice or the first tray assembly 201 during the ice moving process. The first pusher 510 may push the ice so that the ice is separated from the first tray 320 . For example, the first pusher 510 may penetrate the first tray cover 300 to push ice. The first pusher 510 may push ice through the first tray 320 .

The first pusher 510 may receive power from the driving unit 480. For example, the first pusher 510 may receive the power of the driving unit 480 transmitted to the second tray assembly 202.

The ice maker 200 may further include a pusher link 440. For example, a plurality of pusher links 440 may be connected to the first pusher 510. One side of the pusher link 440 may be connected to the first pusher 510, and the other side may be connected to the second tray assembly 202. For example, the other side of the pusher link 440 may be connected to the second tray supporter 380.

The ice maker 200 may further include an elastic member 460. One end of the elastic member 460 may be connected to the transmission units 420 and 421, and the other end may be connected to the second tray assembly 202. When the elastic member 460 is tensioned, the position of the transmission units 420 and 421 can be moved to the initial position due to the restoring force. The elastic member 460 may increase adhesion between the first tray assembly 201 and the second tray assembly 202 at the ice-making position. The other end of the elastic member 460 may be coupled to the second tray supporter 380.

The ice maker 200 may further include a second pusher 530 that presses the ice or the second tray assembly 202 during the ice moving process. The second pusher 530 may be installed on the bracket 220, for example. When the bracket 220 is omitted, the second pusher 530 may be installed on the support member 150 or the ice-making chamber wall 140.

The ice maker 200 may further include a full ice detection lever 550. The full ice detection lever 550 may include a lever body 552 extending in one direction. The full ice detection lever 550 may further include a first extension portion 553 extending from one end of the lever body 552. The full ice detection lever 550 may further include a second extension portion 554 extending from the other end of the lever body 552. The first extension part 553 may be connected to the driving part 480. The second extension 554 may be connected to the bracket 220.

The driving unit 480 may include an extension rib 484 inserted into the bracket 220 or penetrating the bracket 220 . For example, a plurality of extension ribs 484 may be arranged to be spaced apart in the horizontal or vertical direction. For example, the extended rib 484 may protrude from the motor housing 481.

Figure 12 is a perspective view of the first tray according to this embodiment as seen from the top, Figure 13 is a perspective view of the first tray according to this embodiment as seen from the bottom, and Figure 14 is a top view of the first tray according to this embodiment. .

Referring to FIGS. 12 to 14 , the first tray 320 may define a first cell 321 that is part of the ice making cell 203. The first tray 320 may include a first cell wall 322 forming the first cell 321 . For example, the first cell 321 may be formed in a hemispherical shape or a shape similar to a hemisphere.

For example, the first tray 320 may form a plurality of first cells 321.

The first cell wall 322 may include a first surface 322a forming the first cell 321 and a second surface 322b extending from the first surface 322a. The second surface 322b may connect two or more first surfaces 322a. The second surface 322b may be in contact with the second tray 360.

The plurality of first cells 321 may be arranged in a plurality of rows to increase the number while reducing the size of the ice produced. The plurality of first cells 321 may include a first cell portion 321a disposed in a first column and a second cell portion 321b disposed in a second column.

The first cell portion 321a may form a part of the first ice-making cells in the first row, and the second cell portion 321b may form a part of the second ice-making cells in the second row.

The first and second rows may be arranged in the Y-axis direction in the drawing. For example, the Y-axis direction may be the front-to-back direction of the refrigerator or the front-to-back direction of the door. The first row may include a plurality of first cell portions 321a. The second row may include a plurality of second cell portions 321b.

The first row may be located closer to the front wall 141 or the outer case 101 or the front of the door or the cold air guide 270 than the second row. The second row may be located closer to the ice-making chamber door 130 than the first row.

The number of first cell portions 321a may be the same as or different from the number of second cell portions 321b. For example, the number of first cell portions 321a may be less than the number of second cell portions 321b.

One first cell portion 321a may be arranged to correspond to an area between two adjacent second cell portions 321b. Alternatively, one first cell portion 321a may be arranged to face the area between two adjacent second cell portions 321b. That is, the first cell portion 321a and the second cell portion 321b may be arranged in a zigzag shape.

The first tray 320 may further include through holes 323a and 323b that provide a passage for water or cold air. The number of through holes 323a and 323b may be equal to the number of first cells 321.

The first tray 320 may further include an auxiliary storage compartment 323d. The auxiliary storage compartment 323d allows water or cold air to pass through. The auxiliary storage compartment 323d may be located above the through holes 323a and 323b. The first tray 320 may further include an extension wall 323c. The extension wall 323c may extend upward around the through holes 323a and 323b to form the auxiliary storage compartment 323d. The extension wall 323c may extend from the first cell wall 322.

The auxiliary storage room 323d may be a space where ice is produced. Alternatively, the auxiliary storage compartment 323d may be a part of the ice making cell 203. When ice making is completed, the top of the ice may be located in or adjacent to the through holes 323a and 323b. Accordingly, the completed ice may have a spherical shape or may be almost similar to a spherical shape.

The auxiliary storage compartment 323d may store water excessively supplied to the ice-making cell 203. The auxiliary storage compartment 323d can store ice that expands during the phase change of supplied water.

The first tray 320 may further include an extension portion 324. The extension portion 324 may include a portion extending from the first cell wall 322 . The extension portion 324 may contact a portion of the cold air guide 270 or support the cold air guide 270.

The extension part 324 includes a portion spaced apart from the cold air guide 270, so that the cold air flow path 270a can be located in a space spaced apart between the extension part 324 and the cold air guide.

The extension portion 324 may include a first extension wall 324e. The extension portion 324 may further include a second extension wall 324d. The second extension wall 324d may extend in a direction crossing the first extension wall 324e.

The first tray 320 may further include one or more fastening parts for fastening to the bracket 220. For example, the first tray 320 may include a first fastening part 324a. The first tray 320 may further include a second fastening part 324b. When the bracket 220 is omitted, the first and second fastening parts 324a and 324b may contact or be supported by the ice-making chamber wall 140.

The extension portion 324 may further include the first and second fastening parts 324a and 324b. For example, the first and second fastening parts 324a and 324b may extend from one end of the first extension wall 324e in a direction away from the second tray 360. The first and second fastening parts 324a and 324b may be arranged to be spaced apart in the X-axis direction (a direction crossing the Y-axis, for example, a horizontal direction). The first and second fastening parts 324a and 324b may include a fastening hole 324c.

The first tray 320 may further include a supporter 325 that supports the movement of the second tray assembly 202. For example, a plurality of supporters 325 may be arranged to be spaced apart in the X-axis direction. The supporter 325 may extend from the extension portion 324 in one direction.

The supporter 325 may include a hole 325a. For example, the transmission units 420 and 421 may be movably coupled to the supporter 325. For example, the transmission units 420 and 421 may be coupled to the supporter 325 to enable relative rotation. The intermediate member 416 is coupled to the hole 325a of the supporter 325, and the intermediate member 416 is installed in the supporter 325 to prevent the intermediate member 416 from rotating with respect to the supporter 325. A slot 325b into which a portion of 416 is inserted may be provided. The slot 325b may extend outward from the hole 325a.

The intermediate member 416 may be formed of a material different from that of the first tray 320. The entire first tray 320 may be made of the same material, or at least a portion may be made of a metal material.

The first tray 320 may further include a bracket coupling portion 325c to be coupled to the bracket 220. The bracket coupling portion 325c may protrude from the extension portion 324. The bracket coupling portion 325c may be located between a plurality of supports 325.

The first tray 320 may further include a cover coupling portion 327 to be coupled to the first tray cover 300. For example, a plurality of cover coupling parts 327 may be arranged to be spaced apart in the left-right direction or the front-back direction. For example, the cover coupling part 327 may protrude from the extension part 324.

The first tray 320 may further include a sensor mounting portion 326 on which the temperature sensor 710 is mounted. The sensor mounting portion 326 may be formed in a recessed shape toward the second tray 360. The temperature sensor 710 may be accommodated in the sensor mounting portion 326.

The first tray 320 may further include a receiving portion 326a that accommodates the heat insulating member 720 mounted on the temperature sensor 710.

The first tray 320 may further include a plurality of fastening bosses 328a, 328b, and 328c. The plurality of fastening bosses 328a, 328b, and 328c may include a first fastening boss 328a. The heater case 340 may be seated on the first fastening boss 328a. The first fastening boss 328a may be coupled to a fastening member penetrating the first tray cover 300 and the heater case 340.

The plurality of fastening bosses 328a, 328b, and 328c may further include a second fastening boss 328b. The first tray cover 300 may be seated on the second fastening boss 328b. The second fastening boss 328b may be coupled to a fastening member fastened to the first tray cover 300.

The plurality of fastening bosses 328a, 328b, and 328c may further include a third fastening boss 328c. The third fastening boss 328c may be coupled to a fastening member penetrating the first tray cover 300.

The first tray 320 may further include a heater seating portion 329 on which the heater 330 is seated. For example, the heater seating portion 329 may be formed as a portion of the first tray 320 is depressed in a direction toward the second tray 360 .

The first tray 320 may further include a guide groove 329a that guides a portion of the heater 330 located outside the heater seating portion 329.

The first tray 320 may further include a recessed portion 329c that is recessed from the extension portion 324 or the first cell wall 322 toward the second tray 360 . The heater seating portion 329 may be formed by being recessed in the recessed portion 329c. Of course, the recessed portion 329c may be omitted.

Figure 15 is a perspective view of the first tray cover according to this embodiment as seen from the top, and Figure 16 is a perspective view of the first tray cover according to this embodiment as seen from the bottom.

Referring to FIGS. 15 and 16 , the first tray cover 300 may include a first portion 301. At least a portion of the first portion 301 may be spaced apart from the first tray 320 . For example, at least a portion of the first portion 301 may be located above the first tray 320 .

The first tray cover 300 may further include a second part 302 extending from one side of the first part 301. The second part 302 may extend from the first part 301 in a direction that intersects the first part 301 . For example, the second part 302 may extend from the first part 301 in a direction away from the first tray 320 .

The second portion 302 may cover the first pusher 510 in the ice making position. The second part 302 can minimize exposure of the first pusher 510. The second part 302 may be located between the first pusher 510 and the ice making room door 130. A hole 302a may be formed in the second portion 302. A fastening member may pass through the hole 302a.

The first tray cover 300 may further include a guide 303. The guide 303 extends from the first portion 301 and may provide a passage for the first pusher 510 to move. The guide 303 may extend from the first part 301 in a direction that intersects the first part 301 . The guide 303 may include a guide slot 303a.

The first tray cover 300 may further include a water supply hole 301a. The water supply hole 301a may be aligned with the through hole 241 of the water supply unit 240.

The first tray cover 300 may further include a communication hole 301b aligned with the auxiliary storage compartment 323d (or through hole 323a, 323b) of the first tray 320. For example, a plurality of communication holes 301b may be formed in the first portion 301.

The first tray cover 300 may further include a first fastening hole 301d aligned with the first fastening boss 328a. The fastening member may pass through the first fastening hole 301d and the heater case 340 and be fastened to the first fastening boss 328a.

The first tray cover 300 may further include a fastening portion 301e aligned with the second fastening boss 328b. The fastening part 301e may protrude from the first part 301. The fastening member may pass through the fastening portion 301e and be fastened to the second fastening boss 328b.

The first tray cover 300 may further include a second fastening hole 301f aligned with the third fastening boss 328c. The fastening member may pass through the second fastening hole 301f and be fastened to the third fastening boss 328c.

The first part 301 may further include a receiving groove 301g in which the extension wall 323c of the first tray 320 is accommodated. A rib 301c may be formed in a portion of the receiving groove 301g corresponding to the communication hole 301b.

The first tray cover 300 may further include a guide cover 304 that contacts a portion of the cold air guide 270. The guide cover 304 may cover a portion of the cold air guide 270. The guide cover 304 may be bent at the first portion 301.

The first tray cover 300 may further include a guide contact portion 304a that contacts the cold air guide 270. The guide contact portion 304a may extend upward from the first portion 301.

The first tray cover 300 may further include a tray seating portion 305 mounted on the first tray 320 . For example, a plurality of tray seating units 305 may be arranged to be spaced apart from the first part 301. The tray seating portion 305 may extend downward from both ends of the first portion 301. The first portion 301 may be spaced apart from a portion of the first tray 320 by the tray seating portion 305.

The first tray cover 300 may further include a tray coupling portion 306 to be coupled to the first tray 320. The cover coupling part 327 may be coupled to the tray coupling part 306. For example, the cover coupling part 327 may be inserted into the tray coupling part 306.

The first tray cover 300 may further include a case contact portion 307. The case contact portion 307 may protrude from the first portion 301. The case contact portion 307 may contact the heater case 340. The case contact part 307 may pressurize the heater case 340. For example, a plurality of case contact portions 307 may be arranged to be spaced apart in the front-back and left-right directions.

The first tray cover 300 may further include a pressing protrusion 308. The pressing protrusion 380 may press the insulation member 720. For example, a plurality of pressing protrusions 308 may protrude from the first portion 301.

The first tray cover 300 may further include a heater guide 309. The heater guide 309 may be located adjacent to one tray seating portion 305 among the plurality of tray seating portions 305. The heater guide 309 may protrude from the first part 301. A portion of the heater 330 may be located between the heater guide 309 and the work tray seating portion 305.

Figure 17 (A) is a perspective view of the second tray assembly according to this embodiment viewed from above. Figure 17 (B) is a perspective view of the second tray assembly according to this embodiment viewed from the bottom. Figure 18(A) is a cross-sectional view taken along line 18A-18A in Figure 17(A), and Figure 18(B) is a cross-sectional view taken along line 18B-18B in Figure 17(A).

FIG. 19 (A) is a perspective view of the fixing member according to this embodiment, and FIG. 19 (B) is a view showing a portion of the lower surface of the second tray assembly in a state in which the fixing member is coupled.

Referring to FIGS. 17 to 19, the second tray 360 may define a second cell 361, which is another part of the ice making cell. The second tray 360 may include a second cell wall 362 forming the second cell 361. For example, the second cell 361 may be formed in a hemispherical shape or a shape similar to a hemisphere.

For example, the second tray 360 may form a plurality of second cells 361. The plurality of second cells 361 may be arranged in a plurality of rows to increase the number while reducing the size of the ice produced.

The plurality of second cells 361 may include a first cell portion 361a disposed in a first column and a second cell portion 361b disposed in a second column. The first cell portion 361a may form another part of the first ice-making cells in the first row, and the second cell portion 361b may form another part of the second ice-making cells in the second row.

The first and second rows may be arranged in the Y-axis direction in the drawing. For example, the Y-axis direction may be the front-to-back direction of the refrigerator or the front-to-back direction of the door. The first row may include a plurality of first cell portions 361a. The second row may include a plurality of second cell portions 361b.

The first row may be located closer to the front wall 141 or the outer case 101 or the front of the door or the cold air guide 270 than the second row. The second row may be located closer to the ice-making chamber door 130 than the first row. Since the second cell 361 in the second tray 360 may be arranged to correspond to the first cell 321 of the first tray 320, the specific arrangement of the second cell 361 will be omitted. Do this.

The second tray 360 may be seated on the second tray supporter 380. When the second tray 360 is seated on the second tray supporter 380, a portion of the second tray 360 may penetrate the second tray supporter 380.

When the second tray 360 is seated on the second tray supporter 380, the second tray cover 350 may be seated on the second tray 360. A portion of the second tray 360 may penetrate the second tray cover 350.

The second tray supporter 380, the second tray 360, and the second tray cover 350 may be fastened at once by the fastening member S4. For example, the fastening member S4 may be fastened to the second tray supporter 380.

The second tray assembly 202 may further include a fixing member 390. Although it is not limited, when the second tray assembly 202 is divided into three areas in the X-axis direction (left and right directions), the fixing member 390 may be located in the central area.

During the moving process, the pressing force of the second pusher 530 may be applied to the second tray 360 having a plurality of second cells. The fixing member 390 can reduce the phenomenon in which the second tray 360, which has second cells arranged in a plurality of rows, cannot be restored to its original form after moving is completed.

The fixing member 390 may be seated on the second tray 360. When the fixing member 390 is seated on the second tray 360, a portion of the fixing member 390 may penetrate the second tray 360.

The fixing member 390 that penetrates the second tray 360 may contact the second tray supporter 380 or may penetrate the second tray supporter 380 .

The second tray supporter 380, the second tray 360, and the fixing member 390 may be fastened at once by the fastening member S5. For example, the fastening member S5 may be fastened to the lower side of the second tray supporter 380.

The fixing member 390 may include a first fastening portion 392. The fixing member 390 may further include a second fastening portion 393. Each of the first fastening part 392 and the second fastening part 393 may penetrate the second tray 360.

The fixing member 390 may further include a connection body 391 connecting the first connection part 392 and the second connection part 393. The first fastening part 392 and the second fastening part 393 may be integrally formed with or combined with the connecting body 391. The first connection part 392 and the second connection part 393 may be spaced apart by the connection body 391.

Of course, in this embodiment, it is also possible for the fixing member 390 to include a single fastening portion.

At least one of the first fastening part 392 and the second fastening part 393 may include a first part 394a and a second part 394b extending from the first part 394a. The second part 394b may include a part with a smaller diameter than the first part 394a. The first part 394a may be seated on the second tray 360. The second portion 394b may penetrate the second tray 360. The second portion 394b may penetrate the second tray supporter 380.

Each of the first fastening part 392 and the second fastening part 393 may include fastening grooves 392a and 393a for fastening the fastening member S5. The fastening grooves 392a and 393a may be formed in the second portion 394b.

When the fastening member S5 is fastened to the fastening grooves 392a and 393a, the rotation of each of the first fastening part 392 and the second fastening part 393 is limited, so that the second part 394b The cross section of may be formed to be non-circular. For example, the outer peripheral surface of the second part 394b may include a portion with variable curvature or a straight portion.

The fixing member 390 may further include an extension portion 395 extending from one or more of the first fastening portion 392 and the second fastening portion 393. The extension portion 395 may be seated on the second tray 360, thereby increasing the contact area between the fixing member 390 and the second tray 360. For example, the extension portion 395 may extend from the first portion 394a.

The second tray 360 may include a first protrusion 368a. The first protrusion 368a may be accommodated in the second tray cover 350. The second tray 360 may further include a second protrusion 368. The second protrusion 368 may be accommodated in the second tray supporter 380. The first protrusion 368a and the second protrusion 368 may overlap in the Z-axis direction (the direction in which the first and second trays are arranged or the vertical direction).

When the second tray cover 350 is seated on the second tray 360, one end (e.g., upper end) of the second tray 360 is one end (e.g., an upper end) of the second tray cover 350. It may be located further away from the second tray supporter 380 than the upper end). For example, the upper end of the second tray 360 may be positioned higher than the upper end of the second tray cover 350.

Figure 20 (A) is a perspective view of the second tray cover according to this embodiment viewed from above. Figure 20 (B) is a perspective view of the second tray cover according to this embodiment viewed from the bottom.

Referring to FIGS. 18 and 20 , the second tray cover 350 may include a cover body 351 . The cover body 351 may be formed in a closed loop shape. That is, the cover body 351 may form an opening 352 through which the second tray 360 passes.

The cover body 351 may include a round surface 351a. The round surface 351a may be formed to correspond to the curved wall 365a of the second tray 360, which will be described later. The round surface 351a may contact the curved wall 365a of the second tray 360.

The cover body 351 may further include a plurality of fastening protrusions 353 and 353a. The plurality of fastening protrusions 353 and 353a may pass through the second tray 360 and be coupled to the second tray supporter 380.

The plurality of fastening protrusions 353 and 353a may include a first fastening protrusion 353. The first fastening protrusion 353 may protrude from the cover body 351. The plurality of fastening protrusions 353 and 353a may further include a second fastening protrusion 353a. The cover body 351 may be provided with an extension portion 351b extending to the opening 352. The second fastening protrusion 353a may extend from the extension part 351b.

The cover body 351 may include a first groove 355 in which the first protrusion 368a is accommodated. While the first protrusion 368a is accommodated in the first groove 355, the first protrusion 368a may be exposed to the outside. Conversely, it is also possible for the first protrusion to be formed in the cover body 351 and the first groove (or first hole) to be formed in the second tray 360.

The second tray cover 350 may further include a recessed portion 356. The recessed portion 356 may be provided in the cover body 351. The recessed portion 356 may be provided in a position corresponding to the first fastening protrusion 353 in the cover body 351. The recessed portion 356 may be recessed in the cover body 351 toward the first fastening protrusion 353.

Figure 21 (A) is a perspective view of the second tray according to this embodiment as seen from one side, Figure 21 (B) is a perspective view of the second tray according to this embodiment as seen from the other side, and Figure 22 (A) is a perspective view of the second tray according to this embodiment viewed from the bottom, and Figure 22 (B) is a top view of the second tray according to this embodiment.

Referring to FIGS. 17 to 22, the second tray 360 may define a second cell 361, which is another part of the ice making cell. The second tray 360 may include a second cell wall 362 forming the second cell 361. For example, the second cell 361 may be formed in a hemispherical shape or a shape similar to a hemisphere.

The first cell portion 361a may be positioned to correspond to an area between two adjacent second cell portions 361b or to face the area between two adjacent second cell portions 361b. That is, the first cell portion 361a and the second cell portion 361b may be arranged in a zigzag shape.

The second tray 360 may further include a pusher contact portion 362a that the second pusher 530 contacts during the moving process. The pusher contact portion 362a may be formed on the second cell wall 362. The thickness of the second cell wall 362 in the circumferential direction may be different from the thickness of the pusher contact portion 362a. The thickness of the pusher contact portion 362a may be greater than the thickness of the second cell wall 362. The pusher contact portion 362a may include a flat surface.

The second tray 360 may further include a peripheral wall 365. The peripheral wall 365 may extend from the second cell wall 362 toward the first tray 320 . The peripheral wall 365 may surround the first cell wall 322.

The peripheral wall 365 may include a curved wall 365a. The curved wall 365a may be located adjacent to the first cell portion 361a. The peripheral wall 365 may further include a straight wall 365b. For example, the straight wall 365b may be parallel to the Z axis. The straight wall 365b may be located adjacent to the second cell portion 361b.

The peripheral wall 365 may further include a connecting wall 365c connecting the straight wall 365b and the curved wall 365a. The connecting wall 365c may be rounded in the Z-axis direction. The curvature of the curved wall 365a may be different from the curvature of the connecting wall 365c. The curvature of the curved wall 365a may be greater than the curvature of the connecting wall 365c. The cover body 351 may surround the outer peripheral surface of the peripheral wall 365.

The second tray 360 may further include an extension portion 367. The extension portion 367 may extend from the second cell wall 362 or the peripheral wall 365. Alternatively, the extension portion 367 may extend from the boundary between the second cell wall 362 and the peripheral wall 365. The extension portion 367 may extend in a direction intersecting the peripheral wall 365.

The second tray cover 350 may be seated on one surface of the extension portion 367. The other surface of the extension portion 367 may be seated on the second tray supporter 380.

The first protrusion 368a may be formed on one surface of the extension portion 367. The second protrusion 368 may be formed on the other surface of the extension portion 367.

The first protrusion 368a may be bent one or more times in the horizontal direction. For example, the first protrusion 368a may include a first part and a second part that is inclined to the first part. The first protrusion 368a may be formed in a “V” shape, for example.

The second protrusion 368 may be bent one or more times in the horizontal direction. For example, the second protrusion 368 may include a first part and a second part that is inclined to the first part. The second protrusion 368 may be formed in a “V” shape, for example.

The other surface of the extension portion 367 may be provided with a third protrusion 369 to be coupled to the second tray supporter 380. For example, the third protrusion 369 may overlap the curved wall 365a in the Z-axis direction.

The second protrusion 368 may be located closer to the straight wall 365b than the curved wall 365a. The first protrusion 368a may be located adjacent to the second shell portion 361b. The second protrusion 368 may be located adjacent to the second cell portion 361b. The third protrusion 369 may be located adjacent to the first cell portion 361a.

A plurality of holes 367a through which the fastening protrusions 353 and 353a pass may be formed in the extension portion 367. A portion of the extension portion 367 where the fastening protrusions 353 and 353a are formed (referred to as a “fixed end”) is fixed to the second tray cover 350 and the second tray supporter 380. When the second pusher 530 presses the second tray 360, the walls forming each of the second cells 361 must be independently deformed so that the ice can be easily separated from the second cells 361. You can.

However, since the distance between each of the plurality of second cells 361 and the fixed end is different, the wall is not independently deformed in the portion located far from the fixed end, but only maintains its original shape or has a small amount of deformation. Movement with ice may occur. In this case, ice may not be separated from the second cell 361. For example, when dividing the second tray 360 into three areas in the left and right directions based on (B) of FIG. 22, there is a possibility that moving performance may be deteriorated in the center area.

In the case of the present invention, the fixing member 390 fixes the central area of the second tray 320 to improve moving performance. Since the fixing member 390 serves as the fixing end, some of the second cells may be located adjacent to the fixing member 390. Moving performance can be improved because the wall of the second cell is positioned adjacent to the fixing member and can be independently deformed during the moving process.

The second tray 360 may further include a fixing groove 364 in which the fixing member 390 is accommodated. The fixing groove 364 may overlap the temperature sensor 710 in the vertical direction. The first part 394a of each of the fastening parts 392 and 393 may be seated in the fixing groove 346. The connection body 391 may be seated in the fixing groove 346. The extension portion 395 may be seated in the fixing groove 346.

A portion of the fixing groove 364 may be located between two adjacent first cell portions 361a. Another part of the fixing groove 364 may be located between two adjacent second cell portions 361b. The fixing groove 364 may be arranged to be inclined to the arrangement direction of the plurality of first cell portions 361a. The fixing groove 364 may be arranged to be inclined to the arrangement direction of the plurality of second cell portions 361b.

The second tray 360 may further include a first hole 364c through which the first fastening part 392 passes. The second tray 360 may further include a second hole 364d through which the second fastening part 393 passes.

The first hole 364c and the second hole 364d may penetrate a portion of the second cell wall 362 that does not form the second cell 361. For example, the second cell wall 362 may include a first surface 363a forming the second cell 361 and a second surface 363b extending from the first surface 363a. . The second surface 363b may connect two or more first surfaces 363a.

A portion of the second surface 363b may form the fixing groove 364. The peripheral wall 365 may extend around the second surface 363b. The second surface 363b of the second tray 360 may contact the second surface 322b of the first tray 320.

The second cell wall 362 may further include a third surface 363c that forms a thickness together with the first surface 363a. The second cell wall 362 may further include a fourth surface 363d extending from the third surface 363c. The fourth surface 363d may connect two or more third surfaces 363c. The fourth surface 363d, together with the second surface 363b, may form the thickness of the second cell wall 362.

A portion including the first surface 363a and the third surface 363c may be referred to as a first area. The portion including the second surface 363b and the fourth surface 363d may be referred to as the second area. In this case, the second region of the second cell wall 362 may connect a plurality of first regions.

The fixing member 390 may allow the second cell wall 362 and the second tray supporter 380 to be coupled within the space formed by the peripheral wall 365. The fixing member 390 may contact one or more of the second surface 363b and the fourth surface 363d.

The first hole 364c and the second hole 364d may be formed in the same shape as the second portion 394b of each of the fastening parts 392 and 393.

The first hole 364c and the second hole 364d may be formed in the fixing groove 364. When the fixing member 390 is seated in the fixing groove 364, the first part 394a is seated in the fixing groove 364, and the second part 394b is positioned in each of the holes 364c and 364d. ) penetrates. Accordingly, since the first part 394a covers each of the holes 364c and 364d, the flow of water into each of the holes 364c and 364d can be reduced.

The first hole 364c may be located between two adjacent first cell portions 361a. The second hole 364d may be located between two adjacent second cell portions 361b.

The second tray 360 may further include a protruding wall extending from a portion corresponding to the fixing groove 364. A plurality of protruding walls may extend from the second cell wall 362. The protruding wall may include a first protruding wall 364a in which the first fastening part 392 is accommodated. The protruding wall may further include a second protruding wall 364a1 in which the second fastening part 393 is accommodated. The holes 364c and 364d may be formed in each of the protruding walls 364a and 364a1.

The fourth surface 363d of the second cell wall 362 may include the outer surface of each of the protruding walls 364a and 364a1.

When the fixing member 390 is seated on the second tray 360, one surface of the fixing member 390 may form a continuous surface with the second surface 363b. In a state where the first fastening part 392 penetrates the second tray 360, the first fastening part 392 may be positioned between two adjacent first cell portions 361a. In a state where the second fastening part 393 penetrates the second tray 360, the second fastening part 393 may be positioned between two adjacent second cell portions 361b.

Figure 23 (A) is a perspective view of the second tray supporter of this embodiment viewed from above. Figure 23(B) is a perspective view of the second tray supporter of this embodiment viewed from below.

17 to 23, the second tray supporter 380 may include a supporter body 381 supporting the second tray 360. The supporter body 381 may include a receiving portion 381a in which a portion of the second tray 360 is accommodated. The receiving portion 381a may accommodate each of the plurality of second cells 361 of the second tray 360. The second cell wall 362 can be accommodated in the receiving portion 381a.

The second tray supporter 380 may further include a supporter opening 382 through which the second tray 360 passes. The supporter openings 382 may also be arranged in a first row and a second row.

The supporter body 381 may include a first support surface 383a and a second support surface 383b that is stepped from the first support surface 383a. The first support surface 383a may support the second cell wall 362 or the peripheral wall 365. The second support surface 383b may support the extension portion 367. Of course, the supporter body 381 can be changed into various forms.

The second tray supporter 380 may include a plurality of through holes 384 and 384a through which the fastening protrusions 353 and 353a pass. The plurality of through holes 384 and 384a may include a first through hole 384 through which the first fastening protrusion 353 passes. The plurality of through holes 384 and 384a may include a first through hole 384a through which the second fastening protrusion 353a passes.

The second tray supporter 380 may include a first protrusion groove 385 in which the second protrusion 368 is accommodated. While the second protrusion 368 is accommodated in the first protrusion groove 385, the second protrusion 368 may be exposed to the outside.

The second tray supporter 380 may further include a second protrusion groove 385a in which the third protrusion 369 is accommodated. While the third protrusion 369 is accommodated in the second protrusion groove 385a, the third protrusion 369 may be exposed to the outside.

The second tray supporter 380 may further include coupling portions 386 and 386a extending from the supporter body 381. For example, a plurality of coupling portions 386 and 386a may be arranged to be spaced apart in the horizontal direction (X-axis direction).

The plurality of coupling portions 386 and 386a may include a first coupling portion 386a to which the first transmission portion 420 is coupled. The plurality of coupling portions 386 and 386a may further include a second coupling portion 386 to which the second transmission portion 421 is coupled. Each of the plurality of coupling portions 386 and 386a may include a coupling hole 386b. The rotation center of the second tray assembly 202 may be located in the coupling hole 386b.

The second tray supporter 380 may further include a link coupling portion 387 to which the pusher link 440 is coupled. The link coupling portion 387 may be formed in a cylindrical shape, for example. The link coupling portion 387 may protrude from the supporter body 381 in the horizontal direction. The link coupling portion 387 may be located closer to the bottom of the supporter body 381 than the rotation center.

The second tray supporter 380 may further include an elastic member coupling portion 388 to which the elastic member 460 is coupled. The distance between the elastic member coupling portion 388 and the link coupling portion 387 in the Z-axis direction may be smaller than the distance between the link coupling portion 387 and the center of rotation.

The second tray supporter 380 may further include a first tray hole 389a. The first tray hole 389a may be aligned with the first hole 364c of the second tray 360. The first fastening part 392 may be located in the first tray hole 389a.

The second tray supporter 380 may further include a second tray hole 389b. The second tray hole 389b may be aligned with the second hole 364d of the second tray 360. The second fastening part 393 may be located in the second tray hole 389b.

The second tray supporter 380 may further include a first supporter protrusion 389c extending from a position corresponding to the first tray hole 389a. The first tray hole 389a may be formed in the first supporter protrusion 389c.

The second tray supporter 380 may further include a second supporter protrusion 389d extending from a position corresponding to the second tray hole 389b. The second tray hole 389b may be formed in the second supporter protrusion 389d.

The first protruding wall 364a may be accommodated in the first supporter protrusion 389c. The first protruding wall 364a may be seated on the first supporter protrusion 389c.

The second protruding wall 364a1 may be accommodated in the second supporter protrusion 389d. The second protruding wall 364a1 may be seated on the second supporter protrusion 389d.

According to this embodiment, the fastening portions 392 and 393 of the fixing member 390 are connected to the protruding walls 364a and 364a1 of the second tray 360 and the supporter protrusion 389c of the second tray supporter 380. Since the fastening member S5 is fastened while accommodated in 389d), the contact area between the second part 394b and the protruding walls 364a and 364a1 and the supporter protrusions 389c and 389d is increased, thereby preventing water in the ice-making cell. Leakage to the outside can be reduced.

As another example, the fastening member S5 may be omitted, and each of the first fastening part and the second fastening part 392 and 393 may include a hook. In this case, a hook may be formed in the second portion 394b. The hook may penetrate the second tray supporter 380 and then be caught on one side of the second tray supporter 380 .

Figure 24 is a cross-sectional view showing a state in which the first tray and the second tray are in contact.

Referring to FIG. 24, at the ice making position of the second tray 360, the second surface 322b of the first cell wall 322 is the second surface 362b of the second cell wall 362. can come into contact with

The fixing member 390 may include a portion facing the second surface 322b of the first cell wall 322. For example, the second surface 322b of the first cell wall 322 may contact the fixing member 390 or cover the fixing member 390. Accordingly, the flow of water toward the fixing member 390 may be restricted.

The fixing member 390 may include a portion disposed to face the temperature sensor 710. For example, the fixing member 390 may overlap the temperature sensor 710 in the vertical direction.

Two adjacent second cells 361 may be spaced apart by a first distance. The other two adjacent second cells 361 may be spaced apart by a second distance that is smaller than the first distance. At this time, the fixing member may be positioned between the two second cells 361 spaced apart by the first distance.

Hereinafter, the operation of the ice maker 200 will be described.

FIG. 25 is a cross-sectional view showing the ice maker at the water supply position of the second tray assembly of this embodiment, and FIG. 26 is a cross-sectional view showing the ice maker at the ice-making position of the second tray assembly of this embodiment. Figure 27 is a cross-sectional view showing the ice maker with the second tray assembly moved to the full ice detection position during the ice moving process.

Figure 28 (A) is a cross-sectional view showing the ice maker in a state where the first bar of the second pusher is in contact with the second tray, and Figure 28 (B) is a state in which the second bar of the second pusher is in contact with the second tray. This is a cross-sectional view showing the ice maker.

Figure 29(A) is a diagram showing a state in which the first bar of the second pusher presses the second tray in the moving position, and Figure 29(B) shows the second bar of the second pusher pressing the second tray in the moving position. This is a drawing showing the pressurized state. Figure 30 is a control block diagram of a refrigerator according to this embodiment.

25 to 30, the refrigerator may further include a control unit 100. The control unit 100 may be installed on or spaced apart from an object for control. The control unit 100 may be located inside or outside the object for control.

The driving unit 480 may be controlled by the control unit 100. The control unit 100 may control the driving unit 480 to move the second tray assembly 202 to the water supply position, ice making position, full ice detection position, and moving position.

The position of the second tray assembly 202 in FIG. 25 is the water supply position. The position of the second tray assembly 202 in FIG. 26 is the ice-making position. The position of the second tray assembly 202 in FIG. 27 is the full ice detection position. The position of the second tray assembly 202 in FIG. 29 is the moving position.

The second tray assembly 202 may move in a first direction from the water supply position to the ice making position. The first direction is clockwise in the drawing. The second tray assembly 202 may move from the ice-making position to the water supply position in a second direction opposite to the first direction. The second direction is counterclockwise in the drawing.

The second tray assembly 202 may move in the second direction from the water supply position to the full ice detection position. The second tray assembly 202 may move in the second direction from the full ice detection position to the moving position. The second tray assembly 202 may move in the first direction from the moving position to the water supply position.

Referring to FIG. 25, a water supply process may be performed at the water supply location of the second tray assembly 202. Water may be supplied to the ice-making cell 203 through the water supply unit 240.

At the water supply position of the second tray assembly 202, at least a portion of the second tray 360 may be spaced apart from the first tray 320. For example, the first cell 321 and the second cell 361 may be spaced apart.

The first row may be located closer to the rotation center C1 of the second tray assembly 202 than the second row. The distance between the second cell portion 321b of the first tray 320 in the second row and the second cell portion 361b of the second tray 360 is the first tray in the first row ( It may be greater than the distance between the first cell portion 321a of the first tray 320 and the first cell portion 361a of the second tray 360.

The first bar 513 of the first pusher 510 may separate ice from the ice-making cells 203 in the first row. The first bar 513 may push ice from the ice-making cells 203 in the first row. The second bar 514 may separate ice from the ice-making cells 203 in the second row. The second body 514 may push ice from the ice-making cells 203 in the second row.

Each of the first bar 513 and the second bar 514 has a first edge 513b, 514b for pressing ice, and a second edge 513c located on the opposite side of the first edge 513b, 514b. , 514c). The first edges 513b and 514b may be located closer to the ice making cell 203 than the second edges 513c and 514c.

At the water supply position and/or the ice making position, the second part 302 of the first tray cover 300 may overlap the pusher body 511 in the horizontal direction.

When water supply is completed, the second tray assembly 202 can be moved to the ice-making position. When the second tray assembly 202 moves to the ice making position, the first tray 320 and the second tray 360 may come into contact. In this state, a complete ice-making cell 203 can be formed by the first cell 321 and the second cell 322. A portion of the water contained in the second tray 360 may be distributed to the first cell 321 of the first tray 320.

In the ice making position, a portion of the full ice detection lever 550 may be located below the second pusher 530 . For example, the lever body 552 may be located below the second pusher 530. At least a portion of the first extension 553 connected to the driving unit 480 may extend in a direction approaching the second pusher 530.

At the ice making location, an ice making process may be performed. Cold air may flow inside the cold air guide 270. Cold air flowing through the cold air guide 270 may flow between the first tray cover 300 and the first tray 320. In this embodiment, cold air may be supplied to the ice-making chamber 122 during the water supply process. Alternatively, cold air may be supplied to the ice-making chamber 122 only during the ice-making process. Cold air may be supplied to the ice-making chamber 122 even during the moving process.

While the ice making process is being performed, it may be determined whether the ice making is complete based on one or more of the temperature detected by the temperature sensor 710 and the time for which cold air is supplied.

Once de-icing is completed, a moving process can be performed. The moving process may include a heating process in which the heater 330 operates. When the heater 330 is turned on, heat from the heater 330 may be transferred to the ice-making cell 203. Ice may be separated from the first tray 320 by the heat of the heater 330. Turning off the heater 330 may be determined based on one or more of the operating time of the heater 330 and the temperature detected by the temperature sensor 710.

The moving process may further include a moving process in which the second tray assembly 202 moves. The moving process may be performed after the heater 330 is turned off, or the moving process may be performed while the heater 330 is operating, and the heater 330 may be turned off during the moving process.

During the moving process, the second tray assembly 202 may move in the second direction (direction of arrow A) from the ice making position toward the moving position.

During the moving process, while the second tray assembly 202 is moving in the second direction, the full ice detection lever 550 may be moved by receiving power from the driving unit 480. The full ice detection lever 550 may maintain a stopped state before the second tray assembly 202 is rotated to a certain angle in the second direction from the ice making position. The full ice detection lever 550 may be rotated when the second tray assembly 202 is rotated beyond the predetermined angle. At this time, the full ice detection lever 550 may be rotated in a first direction (direction arrow B) that is opposite to the rotation direction of the second tray assembly 202.

While the second tray assembly 202 is moved to the full ice detection position, the full ice detection lever 550 may also be moved to the full ice detection position. At this time, the lever body 552 may be spaced apart from the second tray assembly 202.

If full ice is not detected while the second tray assembly 202 is moved to the full ice detection position, the second tray assembly 202 may be further moved in the second direction toward the moving position. .

When the second tray assembly 202 is further moved while the full ice detection lever 550 is moved to the full ice detection position, the full ice detection lever 550 is also moved in the second direction to the initial position. You can return. Accordingly, interference between the full ice detection lever 550 and the second tray assembly 202 can be prevented.

Meanwhile, while the second tray assembly 202 is moving from the ice making position to the moving position, the bars 513 and 514 of the first pusher 510 are connected to the through holes 323a and 323b of the first tray 320. may be inserted into the first cell 321. In the process of inserting the bars 513 and 514 of the first pusher 510 into the first cell 321, the bars 513 and 514 of the first pusher 510 may pressurize ice.

The second pusher 530 may include a first bar 532. The second pusher 530 may further include a second bar 533. The first bar 532 may separate ice from the ice-making cells 203 in the first row. The second bar 533 may separate ice from the ice-making cells 203 in the second row.

While the second tray assembly 202 is being moved to the moving position, the first bar 532 of the second pusher 530 first contacts the second tray 360 as shown in (A) of FIG. 28. You can. The first bar 532 may be located closer to the vertical line V1 passing through the rotation center C1 than the second bar 533.

The distance between the first row in the second tray 360 and the rotation center C1 is different from the distance between the second row in the second tray 360 and the rotation center C1. Therefore, the positions of the first bar 532 and the second bar 533 need to be different with respect to the vertical line V1 passing through the center of rotation C1. The horizontal distance between the first bar 532 and the vertical line V1 may be shorter than the horizontal distance between the second bar 533 and the vertical line V1.

The first bar 532 may include a first pressure surface 532b. The first pressing surface 532b may pressurize a portion of the second tray 360 corresponding to the first row. The second bar 533 may include a second pressure surface 533b. The second pressing surface 533b may pressurize a portion of the second tray 360 corresponding to the second row.

The first pressure surface 532b may be inclined with respect to the vertical line V1. The second pressure surface 533b may be inclined with respect to the vertical line V1. The inclination angle of the first pressing surface 532b may be different from the inclination angle of the second pressing surface 533b.

For example, the inclination angle of the first pressing surface 532b with respect to the vertical line may be smaller than the inclination angle of the second pressing surface 533b.

While the first bar 532 is in contact with the second tray 360, the second bar 533 may be spaced apart from the second tray 360. In this state, if the second tray assembly 202 is further moved in the second direction, the second bar 533 may contact the second tray 360 as shown in (B) of FIG. 28. The first bar 532 may be a part of the second cell wall 362 that forms the first row by pressing the first row in the second tray 360 and deformed.

Referring to FIG. 29, when the second tray assembly 202 is moved to the moving position, a portion of the second cell wall 362 forming the first row is deformed by the first bar 532 to form a second cell wall 362. One row of ice may be separated from the second tray 360. Additionally, another part of the second cell wall 362 forming the second row may be deformed by the second bar 533 so that the ice in the second row may be separated from the second tray 360.

In the moving position, the first edges 513b, 514b of the first and second bars 513, 514 of the first pusher 510 penetrate the first cell 321 and It can be located outside of . For example, the first edges 513b and 514b may be positioned lower than the first tray 320 based on the drawing. According to this embodiment, ice can be sufficiently pressurized by the first edges 513b and 514b, thereby improving moving performance.

Ice separated from the second tray assembly 202 may fall downward and be stored in the ice bin 600.

After the second tray assembly 202 is moved to the moving position, it may be moved in the first direction toward the water supply position.

Claims (20)

An ice-making room that provides space for ice production; a cooler for supplying cold to the ice-making room; and It includes an ice maker that forms an ice-making cell, which is a space where water changes phase into ice due to the cold, The ice maker, a first tray assembly including a first tray forming a first cell that is part of the ice making cell; a second tray assembly including a second tray forming a second cell, which is another part of the ice-making cell, and a second tray case having a portion that contacts the second tray or supports the second tray; and A refrigerator including a fixing member for fixing the second tray and the second tray case. According to claim 1, The second tray includes a cell wall forming the second cell and an extension portion extending in a direction away from the cell wall, The fixing member fixes the cell wall and the second tray case. According to claim 2, The extension portion is a refrigerator including a fastening hole through which a fastening member passes. According to claim 2, The cell wall has a first side forming the second cell, a second side extending from the second side, and A refrigerator comprising a peripheral wall extending from the second side. According to claim 4, The cell wall is, a third side which together with the first side forms the thickness of the cell wall; further comprising a fourth side extending from the third side and forming together with the second side a thickness of the cell wall; A refrigerator wherein the fixing member contacts at least one of the second and fourth surfaces. According to claim 5, The fixing member includes a fastening part penetrating the second and fourth surfaces. According to claim 6, The fastening part penetrates the second tray case. According to claim 7, A refrigerator further comprising a fastening member fastened to the fastening portion. According to claim 1, The second tray includes a second cell in a first row and a second cell in a second row, The fixing member includes a first fastening part disposed between two adjacent second cells in a first row, and a second fastening part disposed between two adjacent second cells in a second row. According to clause 9, The fixing member further includes a connection body connecting the first connection part and the second connection part. According to clause 9, At least one of the first fastener and the second fastener includes a first part and a second part extending from the first part, The second portion includes a portion having a smaller diameter than the first portion. According to claim 11, The second portion penetrates the second tray and the second tray case. According to claim 12, A fastening member is fastened to the second part, or A refrigerator wherein the second portion is coupled to the second tray supporter. According to claim 1, The first tray includes a first cell wall forming the first cell, The second tray includes a second cell wall forming the second cell, The first cell wall includes a first side forming the first cell and a second side extending from the first side, The second cell wall includes a first side forming the second cell and a second side extending from the first side of the second cell wall, In the ice making position of the second tray, the second side of the first cell wall is in contact with the second side of the second cell wall, The fixing member includes a portion facing a second side of the first cell wall. According to claim 14, A refrigerator wherein the second surface of the first cell wall is in contact with the fixing member or covers the fixing member. According to claim 14, Two adjacent second cells are spaced apart by a first distance, and two other adjacent second cells are spaced apart by a second distance smaller than the first distance, The fixing member includes a portion located between two second cells spaced apart by the first distance. According to claim 1, The second tray includes a cell wall forming the second cell, It includes a peripheral wall extending from the cell wall in a direction toward the first tray, In the ice making position, the peripheral wall surrounds the first tray, A refrigerator wherein the fixing member fixes the second tray and the second tray case within an area formed by the peripheral wall. An ice-making room that provides space for ice production; a cooler for supplying cold to the ice-making room; and It includes an ice maker that forms an ice-making cell, which is a space where water changes phase into ice due to the cold, The ice maker includes a first tray forming a first cell that is part of the ice making cell; a second tray forming a second cell, which is another part of the ice-making cell; a second tray case having a portion that contacts the second tray or supports the second tray; and It includes a fixing member for fixing the second tray and the second tray case, The second tray includes a cell wall forming the second cell, and an extension portion extending from the cell wall, The second tray supporter includes a receiving portion in which the cell wall is accommodated, and a support surface supporting the extension portion, A refrigerator wherein the fixing member fixes the receiving portion and the cell wall. According to claim 18, A refrigerator wherein the extension part is coupled to the support surface. An ice-making room that provides space for ice production; a cooler for supplying cold to the ice-making room; and It includes an ice maker that forms an ice-making cell, which is a space where water changes phase into ice due to the cold, The ice maker includes a tray forming a plurality of ice making cells; a tray case having a portion that contacts or supports the tray; and Includes a fixing member for fixing the tray and the tray case, The tray includes a first portion having a first surface forming each of the plurality of ice-making cells, a second portion having a second side extending from the first side, A refrigerator wherein the fixing member fixes the second part and the tray case.

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