CN220441923U - Heating components and aerosol generating devices - Google Patents

Abstract

This application provides a heating component and an aerosol generating device. The heating component includes a heating element and a heat insulator. The heating element is used to contain the aerosol-generating matrix. The heating element has a heat insulation area and at least two independent heating areas; the heat insulation area is arranged between two adjacent heating areas; the heat insulation body is embedded in the heat insulation area of the heating element. inside to block heat transfer between adjacent heating areas. The heating element of this application uses a heat insulator embedded in the insulation area to separate different heating areas, and uses physical blocking to prevent the transfer of heat between the various heating areas, so that when the heating element is heated in a certain heating area, the This heating area transfers heat to other heating areas, thereby achieving local baking of the aerosol-generating matrix. When the user takes the first few puffs of the aerosol, local heating can be controlled and the temperature of the aerosol will not be too high.

Description

Heating components and aerosol generating devices

Technical field

The present application relates to the technical field of electronic atomization devices, and specifically to a heating component and an aerosol generating device.

Background technique

Heat-not-burn aerosol generating devices have attracted more and more attention and favor due to their advantages such as safety, convenience, and environmental protection. The heat-not-burn aerosol generating device generates aerosol by heating and baking different forms of aerosol-generating substrates, and delivers the aerosol to the user for inhalation. This "heat-not-burn" method allows the aerosol-generating matrix to be heated only at a lower temperature without burning or producing an open flame, effectively avoiding the generation of harmful substances caused by the aerosol-generating matrix.

Existing heat-not-burn aerosol generating devices generally include a heating component to heat and atomize the aerosol-generating substrate when the heating component is powered on. The heating component usually heats the aerosol-generating matrix as a whole. When the aerosol-generating matrix is heated as a whole, the temperature of the aerosol generated is easily too high, causing the user to feel the mouth is hot when taking the first few puffs of the aerosol, and the user experience is poor.

Utility model content

The present application provides a heating component and an aerosol generating device. The heating component can solve the problem of the user's mouth feeling hot when taking the first few puffs of aerosol and the user experience being poor.

In order to solve the above technical problems, this application provides a heating component, which includes a heating element and a heat insulator. The heating element is used to contain the aerosol-generating substrate. The heating element has a heat insulation zone and at least two independent heating zones; the heat insulation zone is arranged between two adjacent heating zones; the heat insulation body is embedded in the heat insulation zone of the heating body. inside to block heat transfer between adjacent heating areas.

In one embodiment, the heat insulation area has a hollow structure, and the heat insulation body fills the hollow structure.

In one embodiment, the thermal insulation area has a groove, and the thermal insulation body is disposed in the groove.

In one embodiment, the hollow structure is a heat-insulating hole, and the heat-insulating hole is a line hole structure.

In one embodiment, the hollow structure is an intermittent hollow structure.

In one embodiment, the thermal conductivity of the heat insulator is less than 8 W/(m〃K), and/or the material of the heat insulator includes crystallized glass, zirconia ceramics, polyether ether ketone, polyimide. of at least one.

In one embodiment, the heating element has a tubular structure, the insulation holes are arranged along the axial direction, the heating element has a first heating area and a second heating area; the number of the insulation holes is more than two, and the insulation holes include a first heating area. The heat-insulating hole and the second heat-insulating hole, the first heating area has an opposite first end and a second end along the circumferential direction, the second heating area has an opposite first end and a second end along the circumferential direction, the first The first end of the heating area is close to the second end of the second heating area, the first heat insulation hole is provided between the first end of the first heating area and the second end of the second heating area, and the second heat insulation hole is provided between between the second end of the first heating zone and the first end of the second heating zone.

In one embodiment, the heating body includes a base body and at least two heating layers. The base body has a receiving cavity, and the receiving cavity is used to hold the aerosol-generating substrate; the heating layer is arranged on the base body, and the heating layer corresponds to the heating area one-to-one. The heating layer is used to generate heat when electricity is applied to heat the aerosol-generating substrate.

In one embodiment, the heating component further includes a housing component and a heat insulation layer. The housing component has an installation cavity, the heating element is located in the installation cavity, and the heat insulation layer is provided on the inner wall of the installation cavity.

In order to solve the above technical problems, the present application also provides an aerosol generating device. The aerosol generating device includes a heating component and a power supply component. The heating component is used to heat the aerosol generating substrate after being powered on. The heating component is any of the above-mentioned components. A heating component; a power component is electrically connected to the heating component, and the power component is used to supply power to the heating component.

The present application provides a heating component and an aerosol generating device. The present application provides a heating component. The heating component includes a heating element and a heat insulator. The heating element is used to contain the aerosol-generating substrate. The heating element has a heat insulation zone and at least two independent heating zones; the heat insulation zone is arranged between two adjacent heating zones; the heat insulation body is embedded in the heat insulation zone of the heating body. inside to block heat transfer between adjacent heating areas. The heating element of this application uses a heat insulator embedded in the insulation area to separate different heating areas, and uses physical blocking to prevent the transfer of heat between the various heating areas, so that when the heating element is heated in a certain heating area, the This heating area transfers heat to other heating areas, thereby achieving local baking of the aerosol-generating matrix. Local heating can be controlled when the user takes the first few puffs of the aerosol. The temperature of the aerosol will not be too high. The user takes the first few puffs. The temperature felt when aerosol is lower is not easy to burn the mouth, which improves the user experience.

Description of drawings

Figure 1 is a schematic structural view of a heating assembly provided by an embodiment of the present application;

Figure 2 is a schematic structural diagram of Figure 1 from another perspective;

Figure 3 is an expanded schematic diagram of Figure 1;

Figure 4 is an expanded schematic diagram of a heating assembly provided by another embodiment of the present application;

Figure 5 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application.

Reference signs: 10. Heating component; 11. Heating element; 111. Base body; 1111. Containment cavity; 112. Heating layer; 113. Electrode; 114. Heat insulation area; 115. Heating area; 1151. First heating area; 1152. Second heating zone; 12. Heat insulator; 1141. Hollow structure; 1141a. Heat insulation hole; 1142. First heat insulation hole; 1143. Second heat insulation hole; 13. Shell assembly; 131. Upper shell Body; 1311, installation cavity; 1312, insertion channel; 132, lower shell; 1321, air inlet channel; 14, heat insulation layer; 15, flow guide; 16, heat exchange core; 20, aerosol generation matrix; 30. Aerosol generating device; 40. Power supply component; 50. Controller.

Detailed ways

The present application will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments use associated similar element numbers. In the following embodiments, many details are described in order to make the present application better understood. However, those skilled in the art can readily recognize that some of the features may be omitted in different situations, or may be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is difficult to describe these in detail. The relevant operations are not necessary, and they can fully understand the relevant operations based on the descriptions in the instructions and general technical knowledge in the field.

In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operating steps involved in each embodiment can also be sequentially exchanged or adjusted in a manner that is obvious to those skilled in the art. . Therefore, the description and drawings are only for clearly describing a certain embodiment and do not imply necessary composition and/or order.

The serial numbers assigned to components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "connection" mentioned in this application include direct and indirect connections (connections) unless otherwise specified.

Referring to Figures 1-3, the present application provides a heating component 10, which can be used to accommodate the aerosol-generating substrate 20 and heat the aerosol-generating substrate 20 when energized. The aerosol generating substrate 20 may specifically include a plant grass substrate, such as a tobacco substrate. The aerosol generating substrate 20 may also include a protective cover, and the protective cover may wrap the plant grass substrate, for example, a plant grass substrate. Can be used wrapped inside of aluminum foil or paper.

Specifically, in one embodiment, the heating component 10 includes a heating body 11 and a heat insulator 12 .

The heating element 11 is used to accommodate the aerosol generating matrix 20 , and the heating element 11 includes a heating material. The heating element 11 can not only support the aerosol-generating matrix 20 contained therein, but also generate heat when energized, and heat the aerosol-generating matrix 20 contained therein, thereby forming aerosol for use by the user.

The heating element 11 may be entirely made of conductive materials, such as conductive ceramics, or may include an insulating base and a conductive heating layer disposed on the surface of the insulating base. In the embodiment of FIGS. 1-3 , the heating body 11 includes a base 111 and a heating layer 112 . The heating layer 112 is used to generate heat when energized to heat the aerosol-generating substrate 20. Two ends of the heating layer 112 can be connected to two electrodes 113, and the electrodes 113 can be electrically connected to the power component 40 and the controller 50 through external wires. The electrode 113 may be a conductive coating coated on the base 111 . The conductive coating may be a metal coating, conductive silver paste, conductive tape, etc., or may be a metal conductive sheet disposed on the base 111 or deposited on the base 111 Metals, such as gold film, aluminum film or copper film, etc.

The heat-generating layer 112 may be a metal layer, a conductive ceramic layer, or a conductive carbon layer. The shape of the heating layer 112 may be a continuous film structure, a porous mesh structure or a strip structure. The base 111 is made of an insulating material, and the base 111 can be a high-temperature-resistant insulating material such as quartz glass, ceramic, or mica. The base body 111 has a receiving cavity 1111, and the receiving cavity 1111 is used to receive the aerosol generating matrix 20. The receiving cavity 1111 has an opening, so that the aerosol generating matrix 20 can be inserted into or withdrawn from the receiving cavity 1111 through the opening.

The heating element 11 can be a tubular structure. In this embodiment, the base 111 is a cylindrical tubular structure, the receiving cavity 1111 is also cylindrical, and the wall thickness of the side wall of the base 111 is a fixed value, so that the heating element 11 can be uniform. The aerosol generating substrate 20 is heated by the ground.

In this application, the heating body 11 has a heat insulation area 114 and at least two independent heating areas 115 . Among them, independent heating areas 115 means that each heating area 115 can generate heat independently. The heat insulation area 114 is disposed between two adjacent heat generating areas 115 , and the heat insulator 12 is embedded in the heat insulation area 114 to block heat transfer between the adjacent heat generating areas 115 .

Specifically, in the embodiment of FIGS. 1-3 , the number of heating areas 115 and heating layers 112 is the same, and the heating areas 115 correspond to the heating layers 112 one-to-one, that is, one heating layer 112 corresponds to one heating area 115 . At least part of the heat insulator 12 is disposed between two adjacent heat-generating layers 112 to block heat transfer between the two adjacent heat-generating layers 112; wherein, it may be the heat insulator shown in Figures 1-3 The entirety of 12 is disposed between two adjacent heat-generating layers 112 , or a section of the heat insulator 12 can be disposed between two adjacent heat-generating layers 112 .

The material of the heat insulator 12 needs to meet the conditions of high temperature resistance and low thermal conductivity at the same time. For example, in one embodiment, the thermal conductivity of the heat insulator 12 is less than 8 W/(m″K), and/or the material of the heat insulator 12 includes crystallized glass, zirconia ceramic, polyetheretherketone, polyetheretherketone, At least one kind of imide.

The heating element 11 of the present application uses a heat insulator 12 embedded in the insulation area 114 to separate different heating areas 115, and uses physical blocking to prevent the transfer of heat between the various heating areas 115, so that the heating element 11 can generate heat in a certain area. When the zone 115 is heated, the heat transfer from the heating zone 115 to other heating zones 115 is reduced, thereby achieving local baking of the aerosol-generating matrix 20. The user can control local heating and the temperature of the aerosol when the user takes the first few puffs of the aerosol. It will not be too high. The temperature users feel when taking the first few puffs of the aerosol is lower and it is not easy to burn the mouth, which improves the user experience.

In addition, some existing heating assemblies 10 will be provided with two heating elements, that is, the existing independent heating areas 115 are respectively provided on the two heating elements, and the two heating elements are connected to both ends of the heat insulation element respectively. To achieve heat insulation, the existing structure requires many parts, the assembly steps are cumbersome, and the reliability of the connection strength of the two heating parts fixedly connected by the heat insulation part is poor. In this application, each independent heating zone 115 and the heat insulation zone 114 are set on the same heating component. The heat insulation zone 114 is heat insulated by embedding the heat insulator 12. Compared with the above-mentioned existing structure, the parts Less, and the assembly step of connecting the heating element and the heat insulating element is omitted. The heat insulator 12 is embedded in the heating element 11 and will not excessively affect the structural strength of the heating element 11. The structural strength of the heating element 11 is highly reliable.

In one embodiment, as shown in Figures 1-3, the heat insulation area 114 has a hollow structure 1141, and the heat insulation body 12 can be filled in the hollow structure 1141. The hollow structure 1141 refers to a through groove or through hole in the heat insulation area 114 that penetrates the side wall of the heating element 11 along the thickness direction of the heating element 11 . The heat insulator 12 can be filled in the hollow structure 1141 through processes such as painting, spraying, and glue dispensing. On the one hand, the hollow structure 1141 prevents the mutual diffusion of energy between different heating areas 115 through physical blocking, improving the independence of each heating area 115; on the other hand, the heat insulator 12 is filled in the hollow structure 1141 , the heating element 11 can maintain a certain degree of sealing, and the aerosol generated by heating the heating element 11 will not easily escape from the hollow structure 1141, thereby improving energy utilization.

As shown in Figure 1-3, the hollow structure 1141 can be, for example, a heat-insulating hole 1141a, and the heat-insulating hole 1141a has a line hole structure. Of course, in other embodiments, the heat-insulating hole 1141a can also have a bent structure or a zigzag structure. Or it can be other regular or irregular shapes.

In one embodiment, the hollow structure 1141 may be an intermittent hollow structure 1141. For example, reference can be made to FIG. 4. In the embodiment of FIG. 4, the hollow structure 1141 includes a plurality of heat-insulating holes 1141a arranged at intervals. Compared with the continuous hollow structure 1141, arranging the hollow structure 1141 intermittently can improve the structural strength of the heat insulation area 114.

In one embodiment, as shown in FIGS. 1-4 , each heating area 115 is arranged side by side along the circumferential direction of the heating body 11 , and the heat insulation hole 1141 a can extend along the axial direction to block adjacent heating areas 115 . In other embodiments, each heating area 115 can also be arranged side by side along the axial direction of the heating body 11 , and the heat insulation hole 1141 a can extend along the circumferential direction to block adjacent heating areas 115 . Of course, in one embodiment, the heating areas 115 may be arranged both circumferentially and axially. Some of the heat-insulating holes 1141a may be arranged along the axial direction, and some of the heat-insulating holes 1141a may be arranged along the axial direction. Arranged in the circumferential direction, each heating zone 115 only needs to be physically blocked.

In the embodiment of FIGS. 1-3 , the heating body 11 has a first heating area 1151 and a second heating area 1152 . The number of heat insulation areas 114 is two, and the number of heat insulation holes 1141a is two, which are the first heat insulation hole 1142 and the second heat insulation hole 1143 respectively. The first heat insulation hole 1142 and the second heat insulation hole 1143 are both Extending along the axial direction, the first heat generating area 1151 has an opposite first end and a second end along the circumferential direction, and the second heat generating area 1152 has an opposite first end and a second end along the circumferential direction. The first heat generating area 1151 has an opposite first end and a second end along the circumferential direction. The first end of the area 1151 is close to the second end of the second heating area 1152. The first heat insulation hole 1142 is provided between the first end of the first heating area 1151 and the second end of the second heating area 1152. The second insulation hole 1142 is The thermal hole 1143 is disposed between the second end of the first heating area 1151 and the first end of the second heating area 1152.

In one embodiment, the heat insulation area 114 may not have the hollow structure 1141. The heat insulation area 114 may have a groove, the groove is a blind groove, and the heat insulator 12 is disposed in the groove. Compared with the heat insulation area 114 of the hollow structure 1141, the heat insulation area 114 of the groove structure can avoid the overflow of aerosol to a greater extent, so that the heating element 11 maintains better sealing performance. Of course, in other embodiments, the heat insulation area 114 may also include both the hollow structure 1141 and the groove.

Please refer to FIG. 5 . In one embodiment, the heating component 10 further includes a housing component 13 , a heat insulation layer 14 , a flow guide 15 and a heat exchange core 16 .

The housing assembly 13 includes an upper housing 131 and a lower housing 132. The upper housing 131 has an installation cavity 1311 and an insertion channel 1312. The insertion channel 1312 is provided at one end of the installation cavity 1311 and communicates with the installation cavity 1311. The lower housing 131 has an installation cavity 1311 and an insertion channel 1312. The body 132 is disposed at an end of the installation cavity 1311 away from the insertion channel 1312 and blocks an end of the installation cavity 1311 away from the insertion channel 1312 . The heating element 11 is disposed in the installation cavity 1311, and one end of the heating element 11 is detachably connected to the lower housing 132, and one end of the heating element 11 is detachably connected to the side wall of the insertion channel 1312.

The aerosol generating matrix 20 is inserted into the receiving cavity 1111 of the heating element 11 through the insertion channel 1312 . The lower housing 132 has an air inlet passage 1321, which is connected with the air inlet of the heating assembly 10. When the heating assembly 10 is working, the air flow flows from the air inlet of the heating assembly 10 into the air inlet passage of the lower housing 132. 1321, and flows into the heating element 11 from the air inlet channel 1321. The heating element 11 heats the aerosol generating substrate 20 to generate aerosol, and the aerosol flows out from the air outlet of the heating component 10 for use by the user.

The heat insulation layer 14 can be disposed on the inner wall of the installation cavity 1311. The heat insulation layer 14 can block the heat generated by the heating element 11 from being transferred outside the installation cavity 1311, thereby improving the energy utilization of the heating element 11. The heat insulation layer 14 can be made of high temperature resistant heat insulation material, such as zirconium oxide, alumina, quartz or glass.

The heat exchange core 16 can be installed in the heating body 11 and is disposed at an end of the heating body 11 close to the lower housing 132 . Usually, the airflow flows directly from the air inlet channel 1321 of the lower housing 132 to the heating element 11. In this straight-through air inlet heating method, the heat exchange distance of the airflow is short, so the heat exchange area of the airflow is small, which easily leads to heat loss after heating. The temperature of the airflow gradually decreases as it rises, and the temperature reaching the aerosol-generating matrix is not enough, which affects the taste of puffing. However, disposing the heat exchange core 16 between the heating element 11 and the air inlet channel 1321 can increase the heat exchange area of the air flow.

The flow guide 15 may be disposed in the heating body 11 and between the aerosol generating substrate 20 and the heat exchange core 16 . The flow director 15 can centrally guide the airflow in the heat exchange core 16 to the middle of the aerosol generating substrate 20 . During the use of the straight-through air intake heating method, when the air flow temperature rises, all nicotine is easily taken out directly, resulting in too high nicotine content in the first few puffs, and low nicotine content in subsequent puffs, with poor balance. This application adds a flow guide 15, through which the hot air flow is introduced to the central area of the aerosol-generating matrix 20, so that the hot air flow brings out the nicotine in the central area of the aerosol-generating matrix 20, thereby realizing the process of gradual release of nicotine and improving The balanced suction also extends the use time of the aerosol-generating matrix 20 and improves the user's experience.

As shown in Figure 5, this application also provides an aerosol generating device 30. The aerosol generating device 30 includes a heating component 10, a power supply component 40 and a controller 50. The controller 50 is connected to the heating component 10 and the power supply component 40 respectively. The connection is used to control the power supply component 40 to supply power to the heating component 10 after receiving the start signal and to control the heating power, heating duration, etc. of the heating component 10 . The power supply component 40 is electrically connected to the heating component 10 for supplying power to the heating component 10 . In one embodiment, the power component 40 may specifically include a rechargeable lithium-ion battery. The heating component 10 of the aerosol generating device 30 may have the same or similar structure as the heating component 10 involved in any of the above embodiments, and achieve the same or similar effects, which will not be described again here.

The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the technical field to which the present utility model belongs, several simple deductions, modifications or substitutions can be made based on the ideas of the present utility model.

Claims (10)

1. A heating assembly, comprising:

a heater for housing an aerosol-generating substrate, the heater having a heat-insulating region and at least two independent heat-generating regions; the heat insulation areas are arranged between two adjacent heating areas;

and a heat insulator embedded in the heat-insulating region of the heat-generating body to block heat transfer between the adjacent heat-generating regions.

2. The heating assembly of claim 1, wherein the insulating region has a hollowed-out structure, the insulator filling the hollowed-out structure.

3. The heating assembly of claim 1, wherein the thermally insulating region has a recess, the thermal insulator being disposed in the recess.

4. The heating assembly of claim 2, wherein the hollowed-out structure is a heat-insulating hole, and the heat-insulating hole is a wire hole structure.

5. The heating assembly of claim 4, wherein the heat generating body is of tubular construction, the heat insulating aperture is axially disposed, and the heat generating body has a first heat generating region and a second heat generating region; the quantity of thermal-insulated hole is more than two, the thermal-insulated hole includes first thermal-insulated hole and second thermal-insulated hole, first heat generation area has relative first end and second end along circumference direction, the second heat generation area has relative first end and second end along circumference direction, the first end of first heat generation area is close to the second end of second heat generation area, first thermal-insulated hole set up in between the first end of first heat generation area and the second end of second heat generation area, the second thermal-insulated hole set up in between the second end of first heat generation area and the first end of second heat generation area.

6. The heating assembly of claim 2, wherein the hollowed-out structure is a intermittently hollowed-out structure.

7. The heating assembly of claim 1, wherein the thermal conductivity of the insulator is less than 8W/(m-K), and the insulator is of a material selected from the group consisting of glass ceramic, zirconia ceramic, polyetheretherketone, and polyimide.

8. The heating assembly of claim 1, wherein the heat generator comprises:

a base body having a receiving cavity for receiving the aerosol-generating substrate;

and at least two heating layers, wherein the heating layers are arranged on the substrate, the heating layers are in one-to-one correspondence with the heating areas, and the heating layers are used for generating heat when being electrified so as to heat the aerosol generating substrate.

9. The heating assembly of claim 1, further comprising a housing assembly having a mounting cavity therein and a heat-generating body disposed in the mounting cavity, the heat-insulating layer disposed on an inner wall of the mounting cavity.

10. An aerosol-generating device, comprising:

a heating assembly for heating the aerosol-generating substrate upon energization; the heating assembly is a heating assembly according to any one of claims 1-9;

and the power supply assembly is electrically connected with the heating assembly and is used for supplying power to the heating assembly.