CN114903218A - aerosol generating device - Google Patents

Abstract

The application discloses an aerosol generating device, comprising: a receiver and a heating component, the receiver is provided with a receiving cavity, the receiving cavity is used for receiving an aerosol generating substrate, and the inner wall of the receiving cavity is provided with a first air channel; One end is inserted into the accommodating cavity for inserting into the aerosol generating matrix and heating the aerosol generating matrix; wherein, the first air passage includes a heat preservation section and a cooling section that are connected to each other, and the heat preservation section is relatively close to the bottom of the accommodation cavity relative to the cooling section In the axial direction of the receiving cavity, the cross-sectional area of the heat preservation section is larger than the cross-sectional area of the cooling section, and the first air passage is used for introducing the gas outside the receiver to the heating component through the cooling section and the heat preservation section. By setting the heat preservation section and the cooling section of the airway, the aerosol atomization efficiency is improved, and the problem of high aerosol inlet temperature and affecting user experience is solved.

Description

aerosol generating device

technical field

The present application relates to the technical field of atomization, and in particular, to an aerosol generating device.

Background technique

The airway is the channel through which air flows in the aerosol generating device and the aerosol-generating matrix. At present, the common airway design only considers the airway position and airway suction resistance, and does not consider other functions of the airway. The airway also has various effects on the taste of the aerosol generated in the aerosol generating device, such as the aerosol warm feeling, which reduces the aerosol generation efficiency and affects the user experience.

SUMMARY OF THE INVENTION

In view of this, the present application provides an aerosol generating device to solve the problems of low aerosol generation efficiency and affecting user experience in the prior art.

In order to solve the above-mentioned technical problems, the technical solution provided by the present application is to provide an aerosol generating device, comprising: a receiver and a heating component, the receiver is provided with a receiving cavity, and the receiving cavity is used for accommodating the aerosol generating matrix, and the The inner wall of the accommodating cavity is provided with a first air passage; one end of the heating element of the heating element is inserted into the accommodating cavity to be inserted into the aerosol-generating matrix and heat the aerosol-generating matrix; Wherein, the first air passage includes a heat preservation section and a cooling section that communicate with each other, and the heat preservation section is disposed adjacent to the bottom of the receiving cavity relative to the cooling section. In the axial direction of the receiving cavity, the heat preservation section The cross-sectional area is larger than the cross-sectional area of the cooling section, and the first air passage is used for the gas outside the receiver to be introduced into the heating component through the cooling section and the heat-retaining section.

Wherein, the end face of the heating element facing the receiving cavity is provided with a second air passage, and the first air passage is communicated with the second air passage, so that the gas outside the receiver can pass through the first air passage. The channel and the second air channel enter into the aerosol-generating substrate.

Wherein, the heating assembly includes a base and a heating element arranged on the base, the base is arranged at one end of the receiving cavity, and the end face of the base facing the receiving cavity is provided with the second air passage , the heating element is used to be inserted into the aerosol generating matrix.

Wherein, the second air passage includes at least one air inlet groove, and the air inlet groove extends from the edge of the base to the heating element.

Wherein, the second air passage further includes a converging groove, the converging groove is arranged around the heating element, the air inlet groove is connected to the converging groove, and the converging groove can be covered by the aerosol generating substrate.

Wherein, the number of the air inlet grooves is multiple, and the plurality of the air inlet grooves are radially arranged on the peripheral side of the converging groove.

Wherein, the side walls of the air inlet grooves are of equal width, or gradually narrowed from the edge of the base to the convergence groove.

Wherein, the receiver includes: an accommodating component; an end cover component, which is provided with the cooling section, and the end cover component is detachably connected to one end of the accommodating component, and cooperates with the accommodating component to form the An accommodating cavity is provided, and the heat preservation section is defined in the accommodating cavity.

Wherein, the end cap assembly includes an end cap and an extractor, the extractor is detachably connected to the end cap, the extractor is provided with the cooling section, and the extractor and the inner wall of the end cap are connected A plug-in cavity is formed between them, the end of the accommodating component facing away from the base is inserted into the plug-in cavity, and the extractor is inserted into the accommodating cavity and defines the heat preservation section.

Wherein, the accommodating assembly includes a magnetic accommodating tube, and one end of the magnetic accommodating tube is inserted into the plug-in cavity; the end cap assembly further includes a magnetic part, and the magnetic part is disposed on the end cap and the extraction Between the devices, the magnetic piece is used for magnetic attraction with the magnetic accommodating tube.

Wherein, the accommodating assembly further includes a positioning tube, the positioning tube is sleeved in the magnetic accommodating tube, and the positioning tube is provided with the accommodating cavity, and the inner wall of the positioning tube is positioned with the outer wall of the extractor Cooperate.

Wherein, the inner wall of the extractor is provided with at least one protruding rib, and the protruding rib is used for positioning the aerosol generating substrate.

Wherein, the number of the protruding ribs is multiple and spaced apart from each other, the plurality of protruding ribs are distributed along the circumferential direction of the receiving cavity, and the first air passage includes a space between two adjacent protruding ribs. intake clearance.

Wherein, the rib is provided with a guide surface, and the guide surface is disposed at one end of the extractor away from the base, and is used to guide the aerosol-generating substrate to the positioning space defined by the plurality of ribs.

Wherein, the cooling section is a cylindrical cavity, and the radial dimension of the cooling section is larger than the radial dimension of the aerosol generating substrate.

Wherein, the end cap is provided on the extractor, and the end cap is provided with a receiving port corresponding to the port of the extractor, and the receiving port is used for circumferentially positioning the aerosol generating substrate, and An air inlet gap is formed between the receiving port and the aerosol generating substrate; or the end cover is provided with an air inlet hole that communicates with the cooling section.

Wherein, the aerosol-generating substrate includes a leaf segment and an extraction segment for being inserted into the receiving cavity, the heat preservation segment is used to cover at least part of the leaf segment, and the cooling segment is used to cover at least part of the leaf segment. of the extraction section, one end of the heat-generating component is used for inserting the leaf segment.

Wherein, the ratio of the length of the insulation section covering the blade segment to the length of the blade segment is greater than or equal to 0.25.

Wherein, the heating assembly includes a base and a heating element arranged on the base, the base is arranged at one end of the insulation section and is used for supporting the blade segment, and the heating element is used for inserting the blade segment; Wherein, the ratio of the length of the heat preservation section to the length of the blade segment is greater than or equal to 0.25.

Wherein, the ratio of the length of the heat preservation section to the length of the leaf segment is greater than or equal to 1.0, and the heat preservation segment is used to fully cover the leaf segment.

Beneficial effects of the present application: The present application discloses an aerosol generating device. By arranging a first air channel on the inner wall of a receiving cavity of a receiver, and the first air channel includes a cooling section and a heat preservation section with different cross-sectional areas, The cooling section and the heat preservation section are distributed along the direction in which the aerosol generating matrix is inserted into the receiving cavity. When the aerosol generating device is used, the airflow flows through the cooling section and the heat preservation section in turn to the heating component, so that the heating component atomizes the aerosol generating matrix to generate gas. Sol for the user to ingest. Among them, when the airflow flows through the cooling section, because the cross-sectional area of the cooling section is relatively small, the flow velocity of the airflow is relatively fast and has a high convective heat transfer coefficient, which can cool and cool the aerosol-forming substrate located in the cooling section. , which reduces the inlet temperature of the aerosol and improves the user's suction experience; the airflow enters the insulation section after preheating in the cooling section, and the cross-sectional area of the insulation section is relatively large, the airflow velocity will slow down, and the convective heat transfer in the insulation section The coefficient is also low, so it has a good thermal insulation effect on the aerosol-generating matrix located in the thermal insulation section, which can effectively slow down the heat dissipation of the aerosol-generating matrix in this section, so that the aerosol-generating matrix has a higher atomization ambient temperature , effectively improving the atomization efficiency of the heating element to the aerosol-generating matrix.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the overall structure of an embodiment of an aerosol generating device provided by the present application;

2 is a schematic diagram of an explosion structure of an embodiment of the aerosol generating device provided by the present application;

3 is a cross-sectional view of an embodiment of the aerosol generating device provided by the present application;

4 is a schematic diagram of the connection structure of the first airway provided by the present application and the aerosol-generating substrate;

5 is a schematic diagram of the connection structure of the insulation section and the first embodiment of the blade segment provided by the present application;

6 is a schematic diagram of the connection structure of the second embodiment of the insulation section and the blade segment provided by the present application;

7 is a schematic diagram of the connection structure of the third embodiment of the insulation section and the blade segment provided by the present application;

8 is a schematic diagram of an exploded structure of a heating assembly provided by the present application;

FIG. 9 is a schematic three-dimensional structure diagram of the heating element provided by the present application;

Figure 10 is a top view of the heat generating assembly provided in Figure 9;

11 is a cross-sectional view of a receiver provided by the present application;

12 is a schematic three-dimensional structure diagram of the extractor provided by the present application;

FIG. 13 is a top view of the extractor provided in FIG. 12 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The terms "first" and "second" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features delimited with "first", "second", may expressly or implicitly include at least one of such features. All directional indications (such as up, down, left, right, front, rear...) in the embodiments of the present application are only used to explain the relative positional relationship between components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Please refer to FIGS. 1 to 3 , FIG. 1 is a schematic diagram of the overall structure of an embodiment of the aerosol generating device provided by the present application, FIG. 2 is a schematic diagram of an explosion structure of an embodiment of the aerosol generating device provided by the present application, and FIG. 3 It is a cross-sectional view of an embodiment of the aerosol generating device provided in the present application.

The aerosol generating device 100 provided by the present application includes a receiver 1, a heating component 2, a casing 3, a power supply component 5 and a switch 6, the receiver 1 is provided with a receiving cavity 10, and one end of the heating component 2 is inserted into the receiving cavity 10, It is used for being inserted into the aerosol generating base 4 and heating the aerosol generating base 4 . The accommodating cavity 10 is used for accommodating the aerosol generating substrate 4 , and the shape and size of the accommodating cavity 10 are not limited, and can be designed according to needs. The power supply component 5 is connected to the heating component 2 for supplying power to the heating component 2 . Driven by the power supply component 5, the heating component 2 heats the aerosol-generating substrate 4 in the receiving cavity 10 to atomize to form an aerosol that can be inhaled by the user. The aerosol-generating substrate 4 may be a solid substrate such as plants, grasses, and the like. The aerosol generating device 100 can be used in different fields, such as medical treatment, beauty, recreational smoking, and the like. The power supply assembly 5 includes a battery 51, a bracket 52, a driving member (not shown), a controller (not shown), and the like. The battery 51 is used to power the heating element 2 so that the heating element 2 can heat the aerosol-generating substrate 4 to form an aerosol. The switch 6 is used to activate or deactivate the aerosol generating device 100 .

Please refer to FIG. 4 to FIG. 7 , FIG. 4 is a schematic diagram of the connection structure of the first air passage and the aerosol-generating substrate provided by the present application, and FIG. 5 is a schematic diagram of the connection structure of the first embodiment of the insulation section and the blade segment provided by the present application. 6 is a schematic diagram of the connection structure of the insulation section and the blade segment provided in the second embodiment of the present application, and FIG. 7 is a schematic diagram of the connection structure of the insulation section and the blade segment provided in the third embodiment of the present application.

In one embodiment, the inner wall of the receiving cavity 10 is provided with a first air passage 11 . The first air passage 11 includes a heat preservation section 111 and a cooling section 112 that communicate with each other. The heat preservation section 111 is disposed adjacent to the bottom of the receiving cavity 10 relative to the cooling section 112 , and in the axial direction of the receiving cavity 10 , that is, the aerosol generating substrate 4 is inserted into the receiving cavity 10 . In the direction of the cavity 10 , the cross-sectional area of the heat preservation section 111 is larger than that of the cooling section 112 .

As shown in FIG. 3 and FIG. 4 , the heating assembly 2 includes a base 21 and a heating element 22 arranged on the base 21 . The base 21 can cover one end of the heat preservation section 111 and is also used to support the blade section 41 . The heating element 22 is inserted into the base 21 . It is arranged in the receiving cavity 10 . One end of the heating element 2 is used for inserting the leaf segment 41, specifically, the heating element 22 is inserted into the leaf segment 41 to achieve heating of the leaf segment 41. The heating element 22 can be inserted into a part of the leaf segment 41, or can be inserted into the entire length of the leaf segment 41, The heating effect is improved, which is not limited in this application.

Specifically, the aerosol-generating substrate 4 is inserted into the receiving cavity 10 during use. The aerosol-generating substrate 4 may include a leaf segment 41 and an extraction segment 42 inserted into the receiving cavity 10 , and the heat preservation segment 111 may cover at least part of the leaf segment. 41. The cooling section 112 is used to cover at least part of the extraction section 42 . The bottom of the aerosol generating base 4 is close to the base 21, and the heat preservation section 111 is arranged on the side close to the base 21. Therefore, the heat preservation section 111 can keep the heat preservation of the side of the aerosol generating base 4 close to the base 21. The leaf segments 41 are kept warm. That is to say, the inner cavity of the insulation section 111 is at least partially overlapped with the blade section 41 , and the insulation section 111 may completely cover the blade section 41 , or may only cover a part of the blade section 41 .

As shown in FIG. 5 , when the insulation section 111 completely covers the blade segment 41 , that is, the ratio of the length of the insulation section 111 to the length of the blade section 41 is greater than or equal to 1.0, the cross-sectional area of the insulation section 111 is greater than the cross-sectional area of the cooling section 112 At this time, the air convection heat transfer coefficient in the insulation section 111 is relatively small, which can improve the insulation effect of the blade segment 41, prevent the heat from the heating element 22 from dissipating too quickly, and improve the heating efficiency and fogging of the aerosol-generating substrate 4. Improve the user's smoking experience. At the same time, the heat loss of the aerosol generating device 100 can be reduced.

As shown in FIGS. 6 and 7 , when the insulation section 111 covers only a part of the leaf segment 41 , for example, the ratio of the length of the insulation section 111 covering the blade segment 41 to the length of the blade segment 41 is greater than or equal to 0.25. 7 or cover half as shown in FIG. 6, etc., which is not limited in this application. However, in order to ensure the thermal insulation effect of the thermal insulation section 111 on the blade segment 41, the ratio of the length of the thermal insulation section 111 covering the blade segment 41 to the length of the blade segment 41 should be at least equal to or greater than 0.25. At this time, the heat preservation effect of the heat preservation section 111 on the leaf segment 41 is somewhat lower than that of the heat preservation section 111 completely covering the leaf segment 41, but the cooling effect of the cooling section 112 on the extraction section 42 of the aerosol-generating substrate 4 will be more obvious, which is more obvious for users. In other words, aerosols have a lower mouth temperature.

In one embodiment, the ratio of the length of the heat preservation section 111 to the length of the blade segment 41 is greater than or equal to 0.25. It should be noted that here is the ratio between the length of the insulation segment 111 and the length of the leaf segment 41 , not the ratio between the length of the insulation segment 111 covering the leaf segment 41 and the length of the leaf segment 41 . As above, since the insulation section 111 may not completely cover the leaf segment 41, the length of the insulation section 111 cannot be simply equal to the length of the insulation section 111 covering the leaf segment 41, only when the length of the insulation section 111 is equal to the length of the blade segment 41 , the length of the insulation section 111 is equal to the length of the insulation section 111 covering the blade segment 41 .

Specifically, as shown in FIGS. 4 to 7 , since the insulation section 111 needs to at least partially cover the blade segment 41 , the insulation section 111 needs to meet a certain length to ensure the insulation effect on the blade segment 41 . The blade segment 41 is arranged in the insulation section 111. When the insulation section 111 needs to insulate the blade segment 41, the length of the insulation section 111 should be at least a quarter of the length of the blade segment 41, and may also be 1/3, 2 The length of the blade segment 41 is equal to or greater than one part, which is not limited in this application. It can be understood that the longer the length of the thermal insulation section 111 is, the better the thermal insulation effect on the blade segment 41 is. In this embodiment, when the base 21 is covered on one end of the heat preservation section 111 , the aerosol generation substrate 4 is inserted into the receiving cavity 10 , and the end of the aerosol generation base 4 close to the heat preservation section 111 is in contact with the base 21 , so that the base 21 The blade segment 41 can be supported, that is, one end of the blade segment 41 away from the extraction section 42 abuts against the end surface of the base 21 . Preferably, the length of the insulation section 111 may be slightly longer than the length of the blade segment 41 at the longest, for example, the ratio of the length of the insulation section 111 to the length of the blade segment 41 is 1.25. If the length of the heat preservation section 111 is too long, the heat preservation section 111 will keep the extraction section 42 of the aerosol generating substrate 4 heat preservation, thereby reducing the cooling effect of the cooling section 112 on the extraction section 42 .

The cooling section 112 is used to cover at least part of the extraction section 42 of the aerosol-generating substrate 4. As mentioned above, the cooling section 112 is disposed on the side of the receiving cavity 10 away from the heating element 2, and the heating element 22 is not inserted into the extraction section 42, The problem that the temperature of the extraction section 42 is too high will not be caused. The cross-sectional area of the cooling section 112 is smaller than the cross-sectional area of the heat preservation section 111. At this time, the air flows here faster and has a higher convective heat transfer coefficient, thereby cooling the extraction section 42, thereby reducing the air flow rate. The mouth temperature of the sol.

As shown in FIG. 4 , in other embodiments, the aerosol-generating substrate 4 may further include a suction nozzle section 43 . The suction nozzle section 43 is the end of the extraction section 42 away from the blade section 41 . It can be understood that the suction nozzle section 43 is for the user Therefore, the suction nozzle segment 43 can be arranged outside the casing 3, which is more convenient for the user to suck. At the same time, because the aerosol flowing to the suction nozzle section 43 is cooled by the extraction section 42, the temperature of the aerosol entering the user's mouth is greatly reduced, the mouthfeel of the aerosol is improved, and the user experience is further improved.

In one embodiment, the cooling section 112 is a cylindrical cavity, and the radial dimension of the cooling section 112 is larger than the radial dimension of the aerosol-generating substrate 4 , so that the aerosol-generating substrate 4 can pass through the cooling section 112 to the heat-preserving section 111 . In other embodiments, the cooling section 112 may also be a prismatic cavity, a rectangular cavity, or the like, which is not limited in this application.

Please refer to FIGS. 8 to 10 , FIG. 8 is a schematic diagram of an exploded structure of the heating element provided by the present application, FIG. 9 is a schematic three-dimensional structure of the heating element provided by the present application, and FIG. 10 is a top view of the heating element provided by FIG. 9 .

In one embodiment, the end face of the base 21 facing the receiving cavity 10 is further provided with a second air passage 23 , the second air passage 23 communicates with the first air passage 11 , and the second air passage 23 faces the heating element 22 . The second air passage 23 includes at least one air inlet groove 231 and a converging groove 232 , and the air inlet groove 231 extends from the edge of the base 21 to the heating element 22 . The converging groove 232 is disposed around the heating element 22 , the air inlet groove 231 communicates with the converging groove 232 , and the converging groove 232 can be covered by the aerosol generating substrate 4 .

Specifically, the second air passage 23 is communicated with the first air passage 11, so that the external air can enter the base 21 from the first air passage 11, and then enter the aerosol-generating substrate 4 from the second air passage 23, so that the heated air can enter the base 21. The aerosol is delivered to the mouthpiece section for suction by the user.

As shown in FIG. 3 and FIG. 10 , the converging groove 232 is preferably arranged at the center of the base 21 and surrounds the heating element 22 . The gas can flow around the converging groove 232 and the heating element 22 . At the same time, after the aerosol-generating base 4 is inserted into the receiving cavity 10, the heating element 22 is inserted from the bottom end of the aerosol-generating base 4 to the blade segment 41, and the cross-section of the aerosol-generating base 4 is larger than the size of the converging groove 232, so that the aerosol The generating base 4 can cover the converging grooves 232 so that the gas can also enter the aerosol generating base 4 .

Preferably, the number of the air inlet grooves 231 is multiple, and the plurality of air inlet grooves 231 are radially arranged on the peripheral side of the converging groove 232 . Specifically, the plurality of air inlet grooves 231 are evenly distributed around the converging groove 232 in an equidistant radial arrangement, so that the second air passages 23 can evenly take in air. The sidewalls of the air inlet grooves 231 can be of equal width, irregularity, or equal distances and gradually narrow toward the direction of the converging grooves 232. For example, the cross-section of the sidewalls of the air inlet grooves 231 is parallel, or wavy, or radiating, etc. , the shape of the side wall of the air inlet groove 231 is not specifically limited. In this embodiment, the air intake groove 231 gradually narrows from the edge of the base 21 to the convergence groove 232, forming a trumpet-shaped air intake groove 231, so that the airflow can be better converged from the periphery to the center.

As shown in FIGS. 8 and 9 , the heating element 22 includes a heating column 221 , a pointed portion 222 and a lead portion 223 . Different from the flat structure of the heating element 22 in the related art, the main body of the heating element 22 of the present application is a columnar shape. One end away from the base 21 is the pointed portion 222 of the heating element 22 . By designing the heating element 22 as a heating column 221 and a pointed portion 222, the heating element 22 can more easily enter the aerosol generating substrate 4, or be taken out from the aerosol generating substrate 4, so that the blades are less likely to stick. At the same time, the columnar heating element 22 enables the aerosol-generating substrate 4 to be separated from the heating element 22 in a rotating manner, which is more convenient for the extraction of the aerosol-generating substrate 4 . The lead portion 223 is disposed at one end of the heating column 221 away from the tip portion 222 , and can be connected to the power source assembly 5 , so that the power source assembly 5 supplies power to the heating element 22 to heat the aerosol-generating substrate 4 .

As shown in FIG. 8 and FIG. 9 , a heating protection shell 214 is provided on the side of the base 21 away from the heating element 22 . The heating protection shell 214 is a cylindrical body with a cavity, and one end of the heating element 22 away from the extractor 132 extends into the Inside the cylindrical body of the heat-generating protection shell 214 , the heat-generating protection shell 214 partially surrounds the heat-generating element 22 and can protect the heat-generating element 22 . The heating protection shell 214 and the base 21 may be connected by means of clip connection, screw connection or screw connection, and the specific connection method is not limited in this application.

In one embodiment, the outer side wall of the base 21 has a first step 211 and a second step 212 , the first step 211 is formed on the side of the outer side wall of the base 21 close to the air inlet groove 231 , and the first step 211 is connected with the multiple steps. The two air intake slots 231 communicate with each other for collecting the air flow from the receiver 1 . The second step 212 is formed on the side of the outer side wall of the base 21 away from the air inlet groove 231 . A sealing member 213 is further provided between the first step 211 and the second step 212 .

Specifically, the first step 211 and the second step 212 are both annular, and the upper end surface of the first step 211 is communicated with the plurality of air inlet grooves 231 , so that the airflow entering from the receiver 1 is carried out at the upper end surface of the first step 211 . After collecting, it enters the air inlet groove 231 and the aerosol generating substrate 4 , so that the airflow entering the first air passage 11 from the outside can flow into the second air passage 23 uniformly. A sealing member 213 is disposed between the first step 211 and the second step 212 , so that the airflow will not enter the power supply assembly 5 and cause damage to the power supply assembly 5 .

Please refer to FIGS. 11 to 13 , FIG. 11 is a cross-sectional view of the receiver provided by the present application, FIG. 12 is a three-dimensional schematic view of the extractor provided by the present application, and FIG. 13 is a top view of the extractor provided by FIG. 12 .

In one embodiment, the receiver 1 includes a detachably connected accommodating assembly 12 and an end cap assembly 13 , and a accommodating cavity 10 is formed in the accommodating assembly 12 and the end cap assembly 13 together. The end cap assembly 13 is provided with a cooling section 112 , and the end cap assembly 13 is detachably connected to one end of the accommodating assembly 12 , and cooperates with the accommodating assembly 12 to define a heat preservation section 111 .

Specifically, the end cap assembly 13 includes an end cap 131 , an extractor 132 and a magnetic member 134 , the end cap 131 is covered on the extractor 132 , and the end cap 131 is provided with a receiving port 133 corresponding to the port of the extractor 132 . 133 is used for circumferentially positioning the aerosol generating substrate 4 , and the receiving port 133 is arranged corresponding to the port of the extractor 132 away from the base 21 . The aerosol generating base 4 is inserted from the receiving port 133 and accommodated in the accommodating cavity 10 . An air inlet gap 1330 is formed between the receiving port 133 and the aerosol generating substrate 4, for external air to enter the first air passage 11, or the end cover 131 is further provided with an air inlet hole 1331 that communicates with the cooling section 112. One or both of the 1330 and the air intake hole 1331 may be provided. The air inlet 1331 can be a through hole opened on the top or the side of the end cap 131, or it can be an air inlet reserved between the end cap 131 and the aerosol generating substrate 4, so that the gas can pass through the through hole or enter the air inlet. The air port enters the first airway 11 . The magnetic member 134 is disposed between the end cover 131 and the extractor 132 , and the magnetic member 134 is used for magnetically connecting with the accommodating component 12 .

Specifically, the receiving port 133 is provided with a protrusion 1332 and an arc-shaped surface 1333 connected with the protrusion 1332. The protrusion 1332 is in contact with the aerosol-generating substrate 4, and the aerosol-generating substrate 4 can be fixed; There is a certain gap between the sol-generating substrates 4 so that external air can enter the receiving cavity 10 . The gap between the arc-shaped surface 1333 and the aerosol-generating substrate 4 can be used as an air intake gap 1330 for external air to enter.

The extractor 132 is detachably connected to the end cover 131 , the extractor 132 is provided with a cooling section 112 , and a plug cavity 136 is formed between the extractor 132 and the inner wall of the end cover 131 , and the end of the accommodating component 12 away from the base 21 is inserted into the plug cavity 136.

Specifically, there is a certain gap between the extractor 132 and the aerosol generating substrate 4, and the cooling section 112 can be formed. The outer surface of the extractor 132 has a circumferentially disposed convex ring 1321 . When the extractor 132 is disposed in the end cover 131 , a cavity is formed between the convex ring 1321 and the end cover 131 , which is the insertion cavity 136 . One end of the accommodating assembly 12 away from the base 21 is inserted into the insertion cavity 136 to fix the accommodating assembly 12 .

In one embodiment, the accommodating assembly 12 may include a magnetic accommodating tube 122 and a positioning tube 121 . One end of the magnetic accommodating tube 122 is inserted into the insertion cavity 136 and abuts against the convex ring 1321 of the extractor 132 . The positioning tube 121 is sleeved in the magnetic accommodating tube 122. The positioning tube 121 has a receiving cavity 10. The inner wall of the positioning tube 121 is positioned and matched with the outer wall of the extractor 132. The extractor 132 is inserted into the receiving cavity 10 and defines the heat preservation section 111.

Specifically, the inner wall of the positioning pipe 121 abuts against the outer side wall of the extractor 132 close to the base 21 , and a cavity is positioned between the end of the extractor 132 close to the base 21 , the inner wall of the positioning pipe 121 and the end face of the base 21 . , the cavity is the heat preservation section 111 of the first air passage 11 . When the aerosol-generating base 4 is inserted into the receiving cavity 10 in the receiver 1, its bottom is in contact with the end face of the base 21, and the blade segments 41 of the aerosol-generating base 4 may be at least partially located in the heat preservation section 111, so that the heat preservation section 111 can The leaf segments 41 are kept warm.

In other embodiments, the accommodating assembly 12 can also be an integrated single-tube structure, that is, the magnetic accommodating tube 122 and the positioning tube 121 are integrally embedded in the insertion cavity 136 and abut against the convex ring 1321 of the extractor 132 , The function of the accommodating component 12 can also be implemented, which is not limited in this application.

The magnetic member 134 is specifically disposed between the end cap 131 and the convex ring 1321 of the extractor 132. In this embodiment, the extractor 132, the magnetic accommodating tube 122 and the end cap 131 can be metal parts, and the magnetic accommodating tube 122 and the magnetic member 134 are respectively arranged on both sides of the convex ring 1321, and the end caps 131 are sleeved on the outside of the magnetic accommodating tube 122 and the magnetic piece 134, through the magnetic attraction of the magnetic piece 134, the magnetic accommodating tube 122, the extractor 132 and the end cap are 131 can form an integrated structure to facilitate the installation of the overall structure of the aerosol generating device 100 . At the same time, the magnetic accommodating tube 122 , the extractor 132 and the end cap 131 constituting the integrated structure are magnetically attracted to each other and have a certain weight, so that the aerosol generating substrate 4 is easier to be taken out from the extractor 132 . It can be understood that the extractor 132 , the magnetic accommodating tube 122 and the end cap 131 can also be made of other materials, and the functions of the present application can be achieved even if they do not form an integrated structure. The magnetic member 134 may be a magnet or a structure composed of other materials provided with a magnetic coating, which is specifically selected according to needs, which is not limited in this application.

12 and 13 , the inner wall of the extractor 132 is provided with at least one rib 130 . The rib 130 is used for positioning the aerosol generating substrate 4 and for guiding the gas outside the receiver 1 to the heating element 2 .

Specifically, the ribs 130 are disposed on the inner wall surface of the extractor 132, so that an intake gap 110 is formed between the aerosol generating substrate 4 and the extractor 132, so that external air can flow through the intake gap 110 to reach the heating element 2. At the same time, the protruding ribs 130 can fix the aerosol-generating substrate 4, so that the aerosol-generating substrate 4 and the extractor 132 are kept in a coaxial position and are not easily displaced. The number of the protruding ribs 130 may be one or more. When multiple protruding ribs 130 are provided, the protruding ribs 130 need to be spaced apart from each other, and the plurality of protruding ribs 130 are distributed along the circumferential direction of the receiving cavity 10 , so that the inside of the receiving cavity 10 There is sufficient space for the aerosol-generating substrate 4 to be inserted. The air intake gap 110 between the two adjacent ribs 130 also serves as a part of the first air passage 11 for introducing external air to the heating element 2 . In this embodiment, the protruding ribs 130 are distributed in the extractor 132 close to a part of the inner wall of the base 21 . In other embodiments, the protruding ribs 130 can also be arranged at the positions in contact with the protrusions 1332 of the receiving port 133 . This is not restricted. The rib 130 and the extractor 132 may be an integral structure or a structure separately provided in the extractor 132 , which is not specifically limited. The specific number and shape of the protruding ribs 130 are not limited, as long as the protruding ribs 130 have air intake gaps 110 between each other and the aerosol generating substrate 4 can pass through, which is not limited in the present application.

Further, the rib 130 is provided with a guide surface 1301 , the guide surface 1301 is disposed toward the port of the extractor 132 away from the base 21 , and can be used to guide the aerosol-generating substrate 4 to be easily inserted into the positioning space defined by the plurality of ribs 130 . The guide surface 1301 may be an inclined surface or an arc surface, and may also be other surfaces, as long as the guiding effect on the aerosol generating substrate 4 can be achieved, which is not limited in this application.

As shown in FIG. 2 and FIG. 3 , the casing 3 is disposed outside the power supply assembly 5 , and the casing 3 is further provided with an opening 31 , and the opening 31 can be used to install the switch 6 of the aerosol generating device 100 . The bracket 52 is arranged in the casing 3 and is used for installing and supporting components such as the battery 51 and the circuit board 54 . The battery 51 is connected to the heating element 22 for supplying power to the heating element 22, so that the heating element 22 can heat the aerosol generating substrate 4 to form an aerosol for the user to suck.

As shown in FIG. 3 and FIG. 8 , the end cap assembly 13 and the housing 3 can be connected by means of threads, snap connections, etc. The arrangement of the sealing member 213 can prevent the airflow from entering the power supply assembly 5, and the components in the power supply assembly 5 can be prevented from entering the power supply assembly 5. cause damage or corrosion. Other sealing members or connecting members may also be provided between the end cap assembly 13 and the casing 3 to ensure the tight connection between the end cap assembly 13 and the casing 3 .

The aerosol generating device disclosed in the present application includes: a receiver and a heating component, the receiver is provided with a receiving cavity, the receiving cavity is used for accommodating the aerosol generating substrate, and the inner wall of the receiving cavity is provided with a first air channel; one end of the heating component is inserted into in the accommodating cavity, to be inserted into the aerosol generating matrix and heating the aerosol generating matrix; wherein, the first air passage includes a heat preservation section and a cooling section that are connected to each other, and the heat preservation section is arranged near the bottom of the accommodating cavity relative to the cooling section. In the axial direction of the accommodating cavity, the cross-sectional area of the heat preservation section is larger than that of the cooling section, and the first air passage is used for introducing the gas outside the receiver to the heating element through the cooling section and the heat preservation section. By setting the heat preservation section and the cooling section of the airway, the aerosol atomization efficiency is improved, and the problem of high aerosol inlet temperature and affecting user experience is solved.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims (20)

1. an aerosol generating device, is characterized in that, comprises: The receiver is provided with an accommodation cavity, the accommodation cavity is used for accommodating the aerosol generating matrix, and the accommodation cavity is provided with a first air passage; a heating element, one end of which is inserted into the aerosol-generating substrate and heats the aerosol-generating substrate; Wherein, the first air passage includes a heat preservation section and a cooling section that communicate with each other, and the heat preservation section is disposed adjacent to the bottom of the receiving cavity relative to the cooling section. In the axial direction of the receiving cavity, the heat preservation section The cross-sectional area is larger than the cross-sectional area of the cooling section, and the first air passage is used for introducing the gas outside the receiver to the heating component through the cooling section and the heat-retaining section. 2 . The aerosol generating device according to claim 1 , wherein the end face of the heating component facing the receiving cavity is provided with a second air passage, and the first air passage communicates with the second air passage. 3 . , so that the gas outside the receiver enters the aerosol generating substrate through the first air passage and the second air passage. 3. The aerosol generating device according to claim 2, wherein the heating component comprises a base and a heating element arranged on the base, the base is arranged at one end of the receiving cavity, and the The end face of the base facing the receiving cavity is provided with the second air passage, and the heating element is used to be inserted into the aerosol generating substrate. 4 . The aerosol generating device according to claim 3 , wherein the second air passage comprises at least one air inlet groove, and the air inlet groove extends from the edge of the base to the heating element. 5 . 5 . The aerosol generating device according to claim 4 , wherein the second air passage further comprises a converging groove, the converging groove is arranged around the heating element, and the air inlet groove communicates with the converging groove. 6 . , and the converging groove can be covered by the aerosol-generating substrate. 6 . The aerosol generating device according to claim 5 , wherein the number of the air inlet grooves is plural, and the plurality of the air inlet grooves are radially arranged on the peripheral side of the converging groove. 7 . 7 . The aerosol generating device according to claim 6 , wherein the side walls of the air inlet grooves are of equal width, or gradually narrowed from the edge of the base to the convergence groove. 8 . 8. The aerosol generating device of claim 1, wherein the receiver comprises: housing components; The end cover assembly is provided with the cooling section, and the end cover assembly is detachably connected to one end of the accommodating component, and cooperates with the accommodating component to form the accommodating cavity, and is defined in the accommodating cavity out of the insulation section. 9 . The aerosol generating device according to claim 8 , wherein the end cap assembly comprises an end cap and an extractor, the extractor is detachably connected in the end cap, and the extractor is provided with the a cooling section, and a plug cavity is formed between the extractor and the inner wall of the end cover, the end of the accommodating component facing away from the base is inserted into the plug cavity, and the extractor is inserted into the container cavity and define the insulation section. 10 . The aerosol generating device according to claim 9 , wherein the accommodating component comprises a magnetic accommodating tube, and one end of the magnetic accommodating tube is inserted into the insertion cavity; 10 . The end cap assembly further includes a magnetic piece disposed between the end cap and the extractor, and the magnetic piece is used to magnetically attract the magnetic accommodating tube. 11 . The aerosol generating device according to claim 10 , wherein the accommodating component further comprises a positioning tube, the positioning tube is sleeved in the magnetic accommodating tube, and the positioning tube is provided with the accommodating tube. 12 . A cavity, the inner wall of the positioning tube is positioned and matched with the outer wall of the extractor. 12 . The aerosol generating device according to claim 8 , wherein at least one convex rib is provided on the inner wall of the extractor, and the convex rib is used for positioning the aerosol generating substrate. 13 . 13 . The aerosol generating device according to claim 12 , wherein the number of the protruding ribs is multiple and spaced apart from each other, and a plurality of the protruding ribs are distributed along the circumference of the receiving cavity, and the The first air passage includes an air intake gap between two adjacent raised ribs. 14 . The aerosol generating device according to claim 13 , wherein the protruding rib is provided with a guide surface, and the guide surface is provided at an end of the extractor away from the base to guide the gas. 15 . The sol forms the matrix into the positioning space defined by the plurality of ribs. 15. The aerosol generating device according to any one of claims 8-14, wherein the cooling section is a cylindrical cavity, and the radial dimension of the cooling section is larger than the radial dimension of the aerosol generating substrate . 16. The aerosol generating device of claim 15, wherein The end cap is covered on the extractor, and the end cap is provided with a receiving port corresponding to the port of the extractor, and the receiving port is used for circumferentially positioning the aerosol generating substrate, and the An air inlet gap is formed between the receiving port and the aerosol-generating substrate; or The end cover is provided with an air intake hole that communicates with the cooling section. 17 . The aerosol generating device according to claim 1 , wherein the aerosol generating substrate comprises a leaf segment and an extraction segment that are inserted into the receiving cavity, and the heat preservation segment is used to cover at least the accommodating cavity. 18 . Part of the blade segment, the cooling segment is used to cover at least part of the extraction segment, and one end of the heat generating component is used to insert the blade segment. 18 . The aerosol generating device according to claim 17 , wherein the ratio of the length of the insulation section covering the blade segment to the length of the blade segment is greater than or equal to 0.25. 19 . 19. The aerosol generating device according to claim 18, wherein the heating assembly comprises a base and a heating element arranged on the base, and the base is arranged at one end of the insulation section and is used to support the the leaf segment, and the heat generating element is used for inserting the leaf segment; Wherein, the ratio of the length of the heat preservation section to the length of the blade segment is greater than or equal to 0.25. 20 . The aerosol generating device according to claim 19 , wherein the ratio of the length of the heat preservation section to the length of the leaf segment is greater than or equal to 1.0, and the heat preservation segment is used to fully cover the leaf segment. 21 .

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