Aerosol generating device and its heating components

Abstract

This application provides an aerosol generating device and its heating component, belonging to the field of aerosol generating technology. The aerosol generating device includes a heating component, which includes a heating tube and a component shell sleeved outside the heating tube. An airflow channel is formed between the component shell and the heating tube. A base is located at the bottom of the component shell, and the bottom of the heating tube is installed on the base. The base has a base air passage, and the bottom port is connected to the airflow channel through the base air passage. The base has a base surface facing the airflow channel and exposed in the airflow channel. The base surface includes a first part and a second part. When the top port is facing upward, the height of the first part is higher than the height of the second part. The connection port of the base air passage that communicates with the airflow channel is located on the first part. This makes the position of the connection port higher than the second part, increasing the difficulty for debris to enter and block the base air passage, and ensuring smooth airflow.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, specifically to an aerosol generation device and its heating component. Background Technology

[0002] Aerosol generating devices are used to convert aerosol matrix into aerosols for users to inhale. One type of aerosol generating device is used in conjunction with an aerosol generating rod containing an aerosol matrix. Such aerosol generating devices generally have a heating component inside a housing. The heating component includes a housing, a heating tube, and a base. The housing is fitted over the heating tube, and the bottom ends of both the housing and the heating tube mate with the base, forming an airflow channel between the housing and the heating tube. The top of the airflow channel has an inlet for outside air to enter the airflow channel. The base has an exposed portion exposed to the airflow channel, and the base also has a base air passage connecting the airflow channel and the inner cavity of the heating tube. The connection port between the base air passage and the airflow channel is located on the exposed portion of the base.

[0003] The air passage in the base is generally quite narrow, making it easier for foreign objects to clog it. Once the air passage in the base is blocked, it will increase the resistance when the user is sucking, and will also affect the sensitivity of the meter, thus affecting the user's experience. Utility Model Content

[0004] This application provides a heating component to solve the technical problem that the base air passage on the heating component base of the aerosol generating device is easily blocked in the prior art; this application also provides an aerosol generating device using the above-mentioned heating component.

[0005] In a first aspect, this application provides a heating assembly for an aerosol generating apparatus, comprising:

[0006] A heating tube has a top port and a bottom port located at both ends, the top port being used for loading an aerosol matrix into the heating tube;

[0007] A component housing is fitted over the heating tube, and an airflow channel is formed between the component housing and the heating tube for airflow to pass through.

[0008] A base is located at the bottom of the component housing; the bottom of the heating tube is mounted on the base; the base has a base air passage, and the bottom port is connected to the airflow channel through the base air passage; the base has a base surface facing the airflow channel and exposed in the airflow channel, the base surface includes a first part and a second part, and when the top port is facing upward, the height of the first part is higher than the height of the second part, and the connection port of the base air passage that communicates with the airflow channel is located on the first part.

[0009] In one embodiment, the first portion includes a slope, and the connection is disposed on the slope.

[0010] In one embodiment, the slope is an inclined plane with an angle between 35° and 55°.

[0011] In one embodiment, the connection is offset on the slope such that the connection is closer to a higher part of the slope and farther from a lower part of the slope.

[0012] In one embodiment, the base includes a cylindrical portion and a flange located on the outer periphery of the cylindrical portion. The cylindrical portion forms a communicating channel, and the base air passage communicates with the bottom port through the communicating channel. The base also includes a protrusion disposed on the flange facing the airflow channel, with the first portion located on the protrusion, and the protrusion connected to the cylindrical portion.

[0013] In one embodiment, the base further includes reinforcing ribs disposed on the side of the flange facing the airflow channel, the reinforcing ribs being connected to the cylindrical portion, and the protrusions and the reinforcing ribs being arranged circumferentially spaced in the cylindrical portion.

[0014] In one embodiment, the height of the reinforcing rib is greater than the height of the protrusion.

[0015] In one embodiment, the heating assembly further includes a sealing seat that mates with the base, the sealing seat having a communicating cavity that communicates with both the air passage of the base and the communicating channel, the middle of the bottom of the communicating cavity being higher than the periphery of the bottom of the cavity.

[0016] In one embodiment, at least two base air passages are arranged at circumferential intervals along the base.

[0017] Secondly, this application provides an aerosol generating device, including a housing and a heating assembly, wherein the heating assembly includes:

[0018] A heating tube has a top port and a bottom port located at both ends, the top port being used for loading an aerosol matrix into the heating tube;

[0019] A component housing is fitted over the heating tube, and an airflow channel is formed between the component housing and the heating tube for airflow to pass through.

[0020] A base is located at the bottom of the component housing; the bottom of the heating tube is mounted on the base; the base has a base air passage, and the bottom port is connected to the airflow channel through the base air passage; the base has a base surface facing the airflow channel and exposed in the airflow channel, the base surface includes a first part and a second part, and when the top port is facing upward, the height of the first part is higher than the height of the second part, and the connection port of the base air passage that communicates with the airflow channel is located on the first part.

[0021] In one embodiment, the first portion includes a slope, and the connection is disposed on the slope.

[0022] In one embodiment, the slope is an inclined plane with an angle between 35° and 55°.

[0023] In one embodiment, the connection is offset on the slope such that the connection is closer to a higher part of the slope and farther from a lower part of the slope.

[0024] In one embodiment, the base includes a cylindrical portion and a flange located on the outer periphery of the cylindrical portion. The cylindrical portion forms a communicating channel, and the base air passage communicates with the bottom port through the communicating channel. The base also includes a protrusion disposed on the flange facing the airflow channel, with the first portion located on the protrusion, and the protrusion connected to the cylindrical portion.

[0025] In one embodiment, the base further includes reinforcing ribs disposed on the side of the flange facing the airflow channel, the reinforcing ribs being connected to the cylindrical portion, and the protrusions and the reinforcing ribs being arranged circumferentially spaced in the cylindrical portion.

[0026] In one embodiment, the height of the reinforcing rib is greater than the height of the protrusion.

[0027] In one embodiment, the heating assembly further includes a sealing seat that mates with the base, the sealing seat having a communicating cavity that communicates with both the air passage of the base and the communicating channel, the middle of the bottom of the communicating cavity being higher than the periphery of the bottom of the cavity.

[0028] In one embodiment, at least two base air passages are arranged at circumferential intervals along the base.

[0029] According to the aerosol generating device and heating component in the above embodiments, during operation, under the user's suction, the air in the airflow channel can flow through the base air passage to the heating tube, carrying the aerosol matrix heated and generated aerosol for the user to inhale. Since the first part of the base surface exposed in the airflow channel is higher than the second part, and the connection port of the base air passage to the airflow channel is located on the first part, if there are solid impurities in the airflow channel, as well as aerosol impurities and condensate flowing back into the airflow channel, the solid impurities and the oil and water droplets generated by condensation will also accumulate on the second part and are less likely to enter the connection port located on the first part, reducing the probability of the base air passage being blocked, ensuring the smooth operation of the aerosol generating device, and improving the user's experience. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the aerosol generating device and the aerosol matrix product in one embodiment of this application;

[0031] Figure 2 This is a cross-sectional structural diagram of the aerosol generating device and the aerosol matrix product in a combination state in one embodiment of this application;

[0032] Figure 3 This is a cross-sectional view of the heating tube of the heating component of the aerosol generating device in one embodiment of this application.

[0033] Figure 4 This is a cross-sectional view of the housing of the heating component of the aerosol generating device in one embodiment of this application.

[0034] Figure 5 This is a cross-sectional view of the assembly of the component shell and heating tube of the heating component of the aerosol generating device in one embodiment of this application. The cut-off position is through the notch.

[0035] Figure 6 This is a cross-sectional view of the assembly of the component shell, heating tube and base of the heating component of the aerosol generating device in one embodiment of this application. The cross-section is taken through the center line of the air passage of the base.

[0036] Figure 7 This is a schematic diagram of the base of the heating component of the aerosol generating device in one embodiment of this application;

[0037] Figure 8 This is a cross-sectional view of the sealing seat of the heating component of the aerosol generating device in one embodiment of this application.

[0038] List of feature names corresponding to the labels in the figure:

[0039] 10. Aerosol generating device; 11. Outer shell; 111. Opening; 12. Heating component; 121. Heating tube; 1211. Top port; 1212. Bottom port; 122. Component shell; 1221. Protruding ring structure; 1222. Notch; 123. Base; 1231. Base surface; 12311. First part; 12312. Second part; 1232. Base air passage; 1233. Connecting port; 1234. Cylindrical part; 1235. Flange; 1236. Protrusion; 1237. Reinforcing rib; 1238. Lower flange; 1239. Connecting channel; 124. Sealing seat; 1241. Cylindrical body; 1242. Membrane layer; 1243. Connecting cavity; 125. Airflow channel;

[0040] 20. Aerosol matrix products. Detailed Implementation

[0041] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0042] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0043] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0044] Please refer to Figure 1 This application provides an aerosol generating device 10 for heating an aerosol matrix product 20 to generate an aerosol for users to inhale.

[0045] Before describing the structure of the aerosol generating device 10 in this application, the aerosol matrix product 20 will be described first. For example... Figure 1 and Figure 2 As shown, the aerosol matrix product 20 has a rod-shaped structure, also known as an aerosol generating rod. One end of the rod contains the aerosol matrix, which is inserted into the aerosol generating device 10 during use. The other end is exposed outside the aerosol generating device 10, serving as the suction end for the user to inhale. Additionally, the end of the aerosol matrix product 20 furthest from the suction end has an air inlet structure, allowing airflow to enter the aerosol matrix product 20 under the suction action of the suction end.

[0046] Heating the aerosol matrix can generate aerosols for users to inhale. The shape, structure, and material and composition of the aerosol matrix product 20 are prior art and can be known to those skilled in the art, therefore they will not be described in detail here. However, it should be noted that the aerosol generating device 10 in this application can be used in conjunction with the aerosol matrix product 20 in the prior art, and can also be used in conjunction with the aerosol matrix product 20 in the future art.

[0047] For the structure of the aerosol generating device 10 in this application, please refer to some embodiments. Figure 2 The aerosol generating device 10 includes a housing 11 and a heating component 12 disposed within the housing 11.

[0048] The outer casing 11 has an opening 111 at its top, which allows the aerosol matrix product 20 to pass through and be inserted into the aerosol generating device 10. The following description is based on the orientation of the opening 111.

[0049] The heating component 12 is used to heat the aerosol matrix product 20 to generate aerosol. Correspondingly, the heating component 12 also constrains the airflow path so that when the user inhales the suction end of the aerosol matrix product 20, the outside air can be driven into the heating component 12 along the airflow path under the user's suction action, and carry the aerosol generated by the heated aerosol matrix product 20 for the user to inhale.

[0050] Regarding the structure and composition of the heating component 12, such as Figure 2 As shown, the heating assembly 12 includes a heating tube 121, an assembly housing 122, a base 123, and a sealing seat 124.

[0051] The structure of the heating tube 121 after being cut apart is as follows: Figure 3 As shown, heating element 121 is a round tube. Figure 3The diagram shown is a cross-sectional view along the centerline of the heating tube 121. The two opposite ends of the heating tube 121 are a top port 1211 and a bottom port 1212. The top port 1211 faces upwards, allowing the aerosol matrix product 20 to pass through, so that a section of the aerosol matrix product 20 containing the aerosol matrix can be inserted into the cavity of the heating tube 121. After assembly, the top port 1211 of the heating tube 121 is aligned with the opening 111 of the outer casing 11.

[0052] The aerosol generating device 10 also includes a battery. The heating tube 121 is electrically connected to the battery. The battery supplies power to the heating tube 121. When the heating tube 121 is powered, it can generate heat. The aerosol matrix in the aerosol matrix product 20 generates aerosol under high temperature.

[0053] Component housing 122 has a cylindrical structure; please refer to [reference needed]. Figure 4 , Figure 4 The diagram shown is a cross-sectional view along the centerline of the component housing 122. Regarding the fit between the component housing 122 and the heating element 121, as follows... Figure 2 As shown, the component housing 122 is fitted over the heating tube 121, forming an airflow channel 125 between the component housing 122 and the heating tube 121 for airflow to pass through. Regarding the structure of the airflow channel 125, it can be an annular channel formed by the inner wall of the component housing 122 and the outer wall of the heating tube 121. Alternatively, the heating tube 121 can be offset within the component housing 122, with its outer wall partially contacting the inner wall of the component housing 122. In this case, the airflow channel 125 is still directly formed by the inner wall of the component housing 122 and the outer wall of the heating tube 121, but it is not annular. Of course, ribs can also be provided on the inner wall of the component housing 122, spaced apart circumferentially. These ribs extend vertically and contact the outer wall of the heating tube 121, with the channel between adjacent ribs forming the airflow channel 125. Naturally, the structure of the airflow channel 125 is not limited to these examples, as long as it allows airflow to pass through from top to bottom.

[0054] In order to allow outside air to enter the airflow channel 125, in some embodiments, please refer to Figure 4 A protruding ring structure 1221 is provided on the inner side of the top of the component housing 122, and a notch 1222 is provided on the protruding ring structure 1221. Please refer to... Figure 5After the assembly of the component housing 122 and the heating tube 121 is completed, the heating tube 121 is located on the lower side of the convex ring structure 1221, and the part of the notch 1222 is not blocked by the heating tube 121. The unblocked part of the notch 1222 forms the air inlet of the airflow channel 125. In some embodiments, four notches 1222 are provided along the circumference of the convex ring structure 1221. The four notches 1222 are evenly spaced around the circumference of the convex ring structure 1221 to ensure the smoothness and uniformity of air intake. In some other embodiments, holes penetrating the convex ring structure 1221 can also be provided on the convex ring structure 1221 as air inlets. The number of air inlets can be adaptively increased or decreased according to actual needs. It can be less than four, such as three, two or even one, or more than four, such as five, six or more.

[0055] Please refer to Figure 6 and Figure 7 The base 123 is located at the bottom of the component housing 122. The bottom end of the heating tube 121 is engaged with the base 123. The base 123 has a base surface 1231 facing the airflow channel 125 and exposed in the airflow channel 125. The base surface 1231 includes a first part 12311 and a second part 12312. The height of the first part 12311 is higher than the height of the second part 12312.

[0056] In some embodiments, the base 123 and the component housing 122 are separate structures, that is, two independent parts. In other embodiments, the base 123 and the component housing 122 can also be an integral structure. In this case, the part of the component housing 122 with the protruding ring structure 1221 can be set as a separate structure from the other parts of the component housing 122, so as to facilitate the installation of the heating tube 121 into the component housing 122.

[0057] In order for the airflow in the airflow channel 125 to flow into the heating tube 121, such as Figure 6 As shown, the base 123 also has a base air passage 1232. The bottom port 1212 of the heating tube 121 is connected to the airflow channel 125 through the base air passage 1232. Furthermore, the connecting port 1233 of the base air passage 1232 that connects to the airflow channel 125 is located on the first part 12311. In this way, the connecting port 1233 is in a high position. If there are solid impurities or oil or water droplets formed by the condensation of backflow aerosol impurities in the airflow channel 125, the solid impurities, oil and water droplets will be deposited on the second part 12312, thereby increasing the difficulty for solid impurities, oil and water droplets to enter and block the airflow channel 125.

[0058] Please refer to Figure 7The first part 12311 includes a slope, and the connecting port 1233 is disposed on the slope. Thus, when debris (solid impurities, oil, water droplets, etc.) falls onto the first part 12311, the debris can slide down the slope onto the second part 12312, reducing the probability of debris entering the base air passage 1232 through the connecting port 1233 and further improving the blockage prevention. Regarding the structure of the slope, in some embodiments, the slope is an inclined plane with a slope of 45°. In other embodiments, the slope can be greater than 45°, such as 55°, or less than 45°, such as 35°. Regarding the location of the connecting port 1233 on the slope, in some embodiments, please refer to... Figure 7 The connecting port 1233 is offset on the slope, so that the connecting port 1233 is close to the high part of the slope and far away from the low part of the slope, in order to reduce the probability of debris falling into the connecting port 1233.

[0059] Regarding the location of the connecting port 1233 on the slope, in some other embodiments, the connecting port 1233 may be centrally located on the slope. Regarding the structural form of the slope, in some other embodiments, the slope may not be a sloping plane, but rather a curved surface. Of course, the first part 12311 may not include the slope; for example, when the top port 1211 of the heating pipe 121 faces upwards, the upper end of the first part 12311 is divided into a horizontal plane.

[0060] like Figure 7 As shown, the base 123 includes a cylindrical portion 1234 and a flange 1235 located on the outer periphery of the cylindrical portion 1234. The cylindrical portion 1234 forms a communicating channel 1239, such as... Figure 6 As shown, the bottom end of the heating tube 121 is inserted into the cylindrical part 1234, the connecting channel 1239 is connected to the bottom port 1212 of the heating tube 121, the base air passage 1232 passes through the base 123, and the base air passage 1232 is connected to the bottom port 1212 of the heating tube 121 through the connecting channel 1239.

[0061] Additionally, the base 123 includes a protrusion 1236 on the side of the flange 1235 facing the airflow channel 125. The first part 12311 is the outer surface of the protrusion 1236, and the base air passage 1232 is a straight air passage that extends downward through the protrusion 1236 and the flange 1235. The component housing 122 is fitted over the flange 1235, and the side of the flange 1235 facing and exposed to the airflow channel 125 constitutes the second part 12312. In some other embodiments, the communication port 1233 may also be provided on the side of the protrusion 1236.

[0062] The protrusion 1236 is connected to the cylindrical portion 1234, thus connecting the flange 1235 and the cylindrical portion 1234 to form a reinforcing structure, which can strengthen the overall structure of the base 123. Of course, in some embodiments, in order to ensure the overall structural strength of the base 123, a reinforcing rib 1237 is specially provided. The reinforcing rib 1237 is located on the side of the flange 1235 facing the airflow channel 125. The reinforcing rib 1237 is connected to the cylindrical portion 1234 to form an integral structure. The protrusion 1236 and the reinforcing rib 1237 are arranged at intervals in the circumferential direction of the cylindrical portion 1234. In this way, the protrusion 1236 and the reinforcing rib 1237 work together to form multiple reinforcing structures on the base 123, ensuring that the base 123 has reliable structural strength.

[0063] In some embodiments, the height of the reinforcing rib 1237 is higher than that of the protrusion 1236, so that in the circumferential direction of the base 123, the reinforcing rib 1237 can block debris deposited on the second portion 12312 and prevent the debris from moving toward the location of the protrusion 1236.

[0064] Regarding the number of base air passages 1232, in some embodiments, two base air passages 1232 are provided on the base 123, and the two base air passages 1232 are evenly spaced on the base. In other embodiments, more base air passages 1232 can be provided, such as three or four, while ensuring the air intake volume. Alternatively, only one base air passage 1232 can be provided, but the flow area of ​​the base air passage 1232 needs to be appropriately increased to ensure reliable air intake capacity.

[0065] The sealing seat 124 mates with the base 123, and the structure of the sealing seat 124 is as follows: Figure 8 As shown, the sealing seat 124 includes a cylindrical body 1241, inside which is a membrane layer 1242. The membrane layer 1242 divides the inner cavity of the cylindrical body 1241 into upper and lower parts. The upper part forms a connecting cavity 1243, and the membrane layer 1242 forms the bottom of the connecting cavity 1243. The bottom of the cavity bulges upward in the middle and is higher than the periphery. In the assembled state, the top end of the cylindrical body 1241 is fitted onto the outer side of the bottom end of the component housing 122. The base air passage 1232 and the connecting channel 1239 are both connected to the connecting cavity 1243. Please refer to... Figure 6 The lower end of the base 123 also has a lower flange 1238, which extends into the communicating cavity 1243 and maintains a certain distance from the membrane layer 1242 to allow airflow to pass through.

[0066] like Figure 2 , Figure 5 and Figure 6As shown by the middle arrow, the heating component 12 constrains the airflow path formed sequentially by the notch 1222, the airflow channel 125, the base air passage 1232, the connecting cavity 1243, and the connecting channel 1239. When the user inhales the suction end of the aerosol matrix product 20, outside air enters the airflow channel 125 through the notch 1222, flows from the top to the bottom of the airflow channel 125, enters the base air passage 1232 through the connecting port 1233, then flows through the connecting cavity 1243, enters the connecting channel 1239, and flows into the aerosol matrix product 20, carrying the aerosol generated by the heated aerosol matrix for the user to inhale.

[0067] Because the connecting port 1233 is located on the first part 12311 and is at a high position, solid impurities entering the airflow channel 125 will be deposited on the second part 12312, which is at a lower position, and are less likely to enter the base air passage 1232 through the connecting port 1233, causing blockage of the base air passage 1232. Similarly, for aerosol impurities and water vapor flowing back into the airflow channel 125, the condensed oil and water droplets will also be deposited on the second part 12312, which is at a lower position, and are less likely to cause blockage of the base air passage 1232.

[0068] Furthermore, the bottom of the connecting cavity 1243 bulges upwards in the middle, higher than its periphery. When aerosol impurities and water vapor flow back from the heating tube 121 through the connecting cavity 1243 to the airflow channel 125, the condensed oil and water droplets can be stored at a lower position around the bottom of the cavity, reducing the amount of oil and water droplets condensing in the airflow channel 125. In particular, the lower flange 1238 extends into the connecting cavity 1243, which can reduce the flow rate of the backflowing gas and promote the condensation and deposition of oil and water droplets in the connecting cavity 1243.

[0069] This application also provides a heating component, which has the same structure as the heating component 12 of the aerosol generating device 10 in the above embodiments, and will not be described in detail here.

[0070] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating assembly for an aerosol generating device, characterized in that, include: A heating tube has a top port and a bottom port located at both ends, the top port being used for loading an aerosol matrix into the heating tube; A component housing is fitted over the heating tube, and an airflow channel is formed between the component housing and the heating tube for airflow to pass through. A base is located at the bottom of the component housing; the bottom of the heating tube is mounted on the base; the base has a base air passage, and the bottom port is connected to the airflow channel through the base air passage; the base has a base surface facing the airflow channel and exposed in the airflow channel, the base surface includes a first part and a second part, and when the top port is facing upward, the height of the first part is higher than the height of the second part, and the connection port of the base air passage that communicates with the airflow channel is located on the first part.

2. The heating assembly as described in claim 1, characterized in that, The first part includes a slope, and the connecting port is disposed on the slope.

3. The heating assembly as described in claim 2, characterized in that, The slope is an inclined plane with an angle between 35° and 55°.

4. The heating assembly as described in claim 2, characterized in that, The connection is offset on the slope, such that the connection is closer to the higher part of the slope and farther from the lower part of the slope.

5. The heating assembly as described in any one of claims 1-4, characterized in that, The base includes a cylindrical portion and a flange located on the outer periphery of the cylindrical portion. The cylindrical portion forms a communicating channel. The air passage of the base communicates with the bottom port through the communicating channel. The base also includes a protrusion located on the flange facing the air passage. The first portion is located on the protrusion, and the protrusion is connected to the cylindrical portion.

6. The heating assembly as described in claim 5, characterized in that, The base also includes reinforcing ribs, which are located on the side of the flange facing the airflow channel. The reinforcing ribs are connected to the cylindrical portion, and the protrusions and the reinforcing ribs are arranged at intervals in the circumferential direction of the cylindrical portion.

7. The heating assembly as described in claim 6, characterized in that, The height of the reinforcing rib is higher than the height of the protrusion.

8. The heating assembly as described in claim 5, characterized in that, The heating assembly also includes a sealing seat that mates with the base. The sealing seat has a communicating cavity that communicates with both the air passage of the base and the communicating channel. The middle part of the bottom of the communicating cavity is higher than the periphery of the bottom of the cavity.

9. The heating assembly as described in any one of claims 1-4, characterized in that, At least two air passages are arranged at circumferential intervals along the base.

10. An aerosol generating device, characterized in that, include: shell; A heating component is disposed within the housing, wherein the heating component is the heating component as described in any one of claims 1-9.

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