Heating assembly and aerosol generating device

Abstract

The utility model belongs to the technical field of aerosol generating devices, and relates to a heating assembly and an aerosol generating device.The heating assembly comprises a main body, a heating element, a first heating element and a second heating element, the heat insulation part is located in the first containing cavity, a cavity is formed between the heat insulation part and the inner side wall of the first containing cavity, and a second containing cavity is formed in the heat insulation part; one end of the second accommodating cavity is communicated with the cavity, and the other end of the second accommodating cavity is communicated with the external environment. External air enters the cavity through the air holes and flows into the second containing cavity, and then the aerosol is driven to flow out of the second containing cavity. In the flowing process of the gas, heat emitted by the heat insulation piece is absorbed in the cavity and then discharged, and the continuous cooling and heat dissipation effects are achieved. Meanwhile, when external gas moves in the cavity, the temperature of the external gas rises to a certain degree, so that the gas is preheated, and the aerosol generation efficiency, the heat insulation efficiency and the heat dissipation efficiency of the heating assembly are high.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generating devices, and more specifically, to a heating component and an aerosol generating device. Background Art

[0002] The structure of the aerosol generating device includes a main body and a heating component, which is used to heat the heated part to generate aerosol. However, the heat generated during the heating process is relatively high, and other structures need to be set up to dissipate the heat and insulate it to avoid burns to the user.

[0003] The existing technology mainly uses a separate air duct for heat dissipation, and the air duct is used to wrap the heating component on the periphery of the heating component, so as to use the air entering the air duct to take away the heat emitted by the heating component and prevent the heat from being transferred outside the aerosol generating device. However, the temperature of the heat transferred to the air duct in the existing technology is limited due to the airflow in the inhaled air duct, that is, the air duct heat dissipation cannot effectively take away a large amount of heat, so its heat insulation effect is poor. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present application is the poor thermal insulation effect of the existing heating components.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a heating component, wherein the heating component comprises:

[0006] A main body, wherein the main body is provided with a first accommodating cavity and a vent hole;

[0007] A heat insulating member, the heat insulating member is located in the first accommodating cavity and forms a cavity with the inner wall of the first accommodating cavity, and a second accommodating cavity is arranged inside the heat insulating member;

[0008] Wherein, the air vent connects the cavity and the external environment, and one end of the second accommodating cavity is connected to the cavity, and the other end is connected to the external environment.

[0009] Furthermore, the main body includes an outer shell, a bottom cover and a top cover, the top cover is plugged into one end of the outer shell, and the bottom cover is plugged into the other end of the outer shell; the two ends of the thermal insulation component are respectively abutted against the top cover and the bottom cover.

[0010] Furthermore, the top cover is provided with a through hole and a vent hole, and the through hole communicates with the second accommodating cavity and the external environment;

[0011] The bottom cover is provided with an air guide channel, and the air guide channel is connected with the second accommodating cavity and the cavity.

[0012] Further, the air guiding channel includes an air inlet hole and an air inlet groove. The bottom cover includes a base and a support seat. The support seat is connected to the base. The heat insulation member is inserted into the support seat. The air inlet hole penetrates through the support seat along the direction from the base to the heat insulation member. The air inlet groove is located on the side wall of the support seat and communicates the air inlet hole with the cavity.

[0013] Further, there are a plurality of the air inlet grooves, and the plurality of air inlet grooves are symmetrically distributed about the central axis of the air inlet hole; and / or,

[0014] There are also a plurality of the ventilation holes, and the plurality of ventilation holes are symmetrically distributed about the central axis of the through hole.

[0015] Further, a diffusing groove is also provided on the side wall of the support seat. The air inlet groove is arranged in the diffusing groove and penetrates through the bottom wall of the diffusing groove.

[0016] Further, the base is provided with a mounting hole which penetrates through the base and communicates with the air inlet groove;

[0017] The heating assembly further includes a lead wire and a hollow heating element. The heating element is located in the second accommodation cavity. At least part of the lead wire is located in the air inlet groove, and one end of the lead wire penetrates through the mounting hole.

[0018] Further, the heat insulation member includes a first sub-heat insulation member and a second sub-heat insulation member. The second sub-heat insulation member is connected to the outer side wall of the first sub-heat insulation member, and a heat insulation cavity is formed between the second sub-heat insulation member and the outer side wall of the first sub-heat insulation member, and a cavity is formed between the second sub-heat insulation member and the inner side wall of the first accommodation cavity;

[0019] Wherein, the heat insulation cavity is in a vacuum environment or filled with an inert gas.

[0020] Further, the heat insulation cavity is filled with an inert gas, and the inert gas includes at least one of helium, neon, argon, krypton, and xenon.

[0021] Correspondingly, the present application further provides an aerosol generating device, and the aerosol generating device includes the heating assembly according to any one of the above embodiments.

[0022] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0023] In this embodiment, external gas can enter the cavity through the air-permeable holes under the action of the air pressure difference, flow into the second accommodation cavity, and then drive the aerosol to flow out of the second accommodation cavity. During the flow of the external gas, it will absorb the heat dissipated from the heat insulation member in the cavity and then be discharged through the second accommodation cavity, playing a continuous cooling and heat dissipation role. At the same time, when the external gas moves in the cavity, its temperature will rise to a certain extent, so this part of the gas is equivalent to being pre-heated. Therefore, the aerosol generation efficiency, heat insulation efficiency, and heat dissipation efficiency of the heating component in this embodiment are high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the solutions in the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is an exploded schematic view of the heating component according to an embodiment of the present application;

[0026] Figure 2 is a schematic structural view of the heating component according to an embodiment of the present application;

[0027] Figure 3 is a schematic structural view of the heating component and the component to be heated according to an embodiment of the present application;

[0028] Figure 4 is Figure 1 a schematic structural view of the support base in

[0029] REFERENCE MARKS:

[0030] Heating component 10, cavity 20, heat insulation cavity 30, outer shell 100, first accommodation cavity 101, heat insulation member 200, second accommodation cavity 201, first sub-heat insulation member 210, second sub-heat insulation member 220, top cover 300, air-permeable hole 301, through hole 302, bottom cover 400, support base 410, air guide channel 411, air inlet groove 412, air inlet hole 413, air diffusion groove 414, base 420, mounting hole 421, heating element 500, lead wire 510, component to be heated 600. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0032] 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 this application. The phrase appearing in various places in the specification is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0033] To solve the above technical problems, please refer to Figures 1 to 3 , an embodiment of this application provides a heating component 10, and the heating component 10 includes:

[0034] A main body, the main body is provided with a first accommodation cavity 101 and a ventilation hole 301;

[0035] A heat insulation member 200, the heat insulation member 200 is located in the first accommodation cavity 101, and a cavity 20 is formed between the heat insulation member 200 and the inner side wall of the first accommodation cavity 101, and a second accommodation cavity 201 is provided inside the heat insulation member 200;

[0036] Wherein, the ventilation hole 301 communicates the cavity 20 with the external environment, one end of the second accommodation cavity 201 communicates with the cavity 20, and the other end communicates with the external environment.

[0037] In this embodiment, the external gas can flow through the inside of the heating component 10 in the following order: from the ventilation hole 301 to the cavity 20, from the cavity 20 to the second accommodation cavity 201, and out of the second accommodation cavity 201 to the external environment. Please refer to Figure 3 , during the working process of the heating component 10, a heating element 500 is arranged in the second accommodation cavity 201, a workpiece to be heated 600 is inserted into the heating element 500, and the heating element 500 generates heat and aerosol by heating. At this time, after the user sucks, it will cause the gas to flow from bottom to top. The specific gas flow direction is shown in detail in Figure 3 The parallel arrows in. During the gas flow process, an air pressure difference is formed between the internal air pressure and the external air pressure of the heating component 10. Under the action of the air pressure difference, the external gas will enter the cavity 20 through the ventilation hole 301, and flow into the second accommodation cavity 201, and then drive the aerosol to flow out of the second accommodation cavity 201.

[0038] During the flow of the external gas, it will absorb the heat dissipated from the heat insulation member 200 within the cavity 20 and then be discharged through the second accommodation cavity 201. The gas fully absorbs the heat dissipated from the heat insulation member 200 into the cavity 20 during the flow process, thus playing a continuous cooling and heat dissipation role. At the same time, when the external gas moves within the cavity 20, its temperature will rise to a certain extent. Therefore, this part of the gas is equivalent to having been preheated, and its heating time in the second accommodation cavity 201 is less than the heating time when the external air directly enters the second accommodation cavity 201. That is, the preheated gas has a short heating time to reach the preset temperature, which can improve the conversion efficiency of the aerosol.

[0039] In summary, this embodiment can effectively improve the heat dissipation, heat insulation, and aerosol conversion efficiency of the heating component. It should be understood that the materials of the heat insulation member 200 include but are not limited to any one or a combination of rubber, plastic, mica, ceramic, epoxy resin, silicone rubber, polytetrafluoroethylene (PTFE), asbestos, and glass fiber.

[0040] Further, please refer to Figures 1 to 3 , the main body includes a housing 100, a bottom cover 400, and a top cover 300. The top cover 300 is inserted into one end of the housing 100, and the bottom cover 400 is inserted into the other end of the housing 100; both ends of the heat insulation member 200 abut against the top cover 300 and the bottom cover 400 respectively.

[0041] In this embodiment, the housing 100 can be a tubular structure. At this time, the top cover 300 and the bottom cover 400 can play a role in restricting the movement of the heat insulation member 200, so that the heating component 10 does not need to additionally set up a structure inside to fix the heat insulation member 200, thereby reducing the assembly cost of the heat insulation member 200.

[0042] Further, please refer to Figures 1 to 3 , the top cover 300 is provided with a through hole 302 and a ventilation hole 301, and the through hole 302 communicates the second accommodation cavity 201 with the external environment;

[0043] The bottom cover 400 is provided with an air guiding channel 411, and the air guiding channel 411 communicates the second accommodation cavity 201 with the cavity 20.

[0044] In this embodiment, since the ventilation hole 301 is provided on the top cover 300 and the air guiding channel 411 is provided on the bottom cover 400, the cavity 20 will cover the outer sidewall of the entire heat insulation member 200 from top to bottom. Compared with the ventilation hole 301 being provided at other parts such as the housing 100, this embodiment can ensure that after the gas flows into the cavity 20, it can completely flow through the outer sidewall of the heat insulation member 200, thereby increasing the contact time and contact area between the gas and the heat insulation member 200 and improving the heat absorption and heat dissipation efficiency of the gas.

[0045] Further, please refer to Figures 1 to 4 , the air guiding channel 411 includes an air inlet hole 413 and an air inlet groove 412, the bottom cover 400 includes a base 420 and a support seat 410, the support seat 410 is connected to the base 420, the heat insulation member 200 is inserted into the support seat 410, the air inlet hole 413 penetrates through the support seat 410 along the direction from the base 420 to the heat insulation member 200, and the air inlet groove 412 is located on the side wall of the support seat 410 and communicates with the air inlet hole 413 and the cavity 20.

[0046] In this embodiment, the support seat 410 can support the heat insulation member 200, while the air inlet groove 412 guides the gas in the cavity 20 to the air inlet hole 413, and the air inlet hole 413 guides the gas in the air inlet groove 412 to the second accommodation cavity 201. Compared with the technical solution in which there is a certain gap between the side wall of the support seat 410 and the inner wall of the housing 100, and then an annular gap is formed, the support seat 410 in this embodiment has a larger volume and higher structural strength, which can improve the stability of the heating assembly 10.

[0047] Further, please refer to Figure 1 and Figure 4 , there are multiple air inlet grooves 412, and the multiple air inlet grooves 412 are axially symmetrically distributed with respect to the central axis of the air inlet hole 413; and / or,

[0048] There are also multiple air permeation holes 301, and the multiple air permeation holes 301 are axially symmetrically distributed with respect to the central axis of the through hole 302.

[0049] In this embodiment, having multiple air permeation holes 301 can improve the efficiency of external gas entering the cavity 20, thereby improving the heat dissipation efficiency of the heating assembly 10. The axial symmetry distribution of the air permeation holes 301 with respect to the central axis of the through hole 302 can ensure that after the external gas enters the cavity 20, the gas can flow evenly along the outer side wall of the heat insulation member 200, thereby avoiding uneven local heat dissipation. Similarly, the air inlet groove 412 can improve the efficiency of the gas in the cavity 20 entering the air inlet hole 413, and further improve the heat dissipation efficiency of the heating assembly 10. Having multiple air inlet grooves 412 can make the forces on each part of the support seat 410 uniform while avoiding uneven local heat dissipation, further improving the structural strength of the support seat 410 and the stability of the heating assembly 10.

[0050] Further, please refer to Figure 4 , a gas expansion groove 414 is further provided on the side wall of the support seat 410, the air inlet groove 412 is arranged in the gas expansion groove 414 and penetrates through the bottom wall of the gas expansion groove 414.

[0051] In this embodiment, to prevent the contact area between the support base 410 and the base 420 from being too small and affecting the structural strength of the support base 410, the area for gas flow in the air expansion groove 414 is small. If only the air expansion groove 414 is provided, it may cause the efficiency of the gas in the cavity 20 entering the air inlet hole 413 to be lower than the efficiency of the external gas entering the cavity 20 through the air permeation hole 301, thereby resulting in low heat dissipation efficiency. Therefore, this embodiment also provides an air expansion groove 414, which can increase the flow area of the gas in the cavity 20 entering the gap between the support base 410 and the inner side wall of the housing 100, thereby improving the gas flow rate and the heat dissipation efficiency of the heating component 10.

[0052] Further, please refer to Figures 1 to 3 , the base 420 is provided with a mounting hole 421, the mounting hole 421 penetrates through the base 420 and communicates with the air inlet groove 412;

[0053] The heating component further includes a lead 510 and a hollow heating element 500. The heating element 500 is located in the second accommodation cavity 201. At least part of the lead 510 is located in the air inlet groove 412, and one end of the lead 510 passes through the mounting hole 421.

[0054] In this embodiment, the heating element 500 can generate heat and heat the item to be heated 600 located therein. The lead 510 is used to connect to an external PCB board, thereby controlling the heating degree of the heating element 500 through the external PCB board. If the lead 510 passes through the air inlet hole 413, the lead 510 may be corroded by the aerosol and the high temperature in the second accommodation cavity 201, thereby reducing the service life of the heating component 10. If a hole is opened in the support base 410 for the lead 510 to be inserted, it will lead to an increase in the production cost of the support base 410 and a decrease in its structural strength.

[0055] In this embodiment, by arranging the lead 510 in the air inlet groove 412 and then leading out the lead 510 through the mounting hole 421, this design does not require an additional hole to be provided on the support base 410, nor will it cause the lead 510 to directly contact the aerosol and high temperature, which can effectively improve the service life of the lead 510, improve the structural strength of the support base 410, and reduce the production cost of the support base 410.

[0056] Further, please refer to Figures 1 to 3 , the heat insulation member 200 includes a first sub-heat insulation member 210 and a second sub-heat insulation member 220. The second sub-heat insulation member 220 is connected to the outer side wall of the first sub-heat insulation member 210, and forms a heat insulation cavity 30 between it and the outer side wall of the first sub-heat insulation member 210, and forms a cavity 20 between it and the inner side wall of the first accommodation cavity 101;

[0057] Among them, the heat insulation cavity 30 is in a vacuum environment or filled with inert gas.

[0058] In this embodiment, different environments within the heat insulation cavity 30 will result in differences in heat insulation efficiency. When the environment inside is filled with inert gas, since inert gas is a stable chemical element that is not easily decomposed and is hardly affected by factors such as temperature and air pressure to aggregate or separate, the heat insulation efficiency is significantly improved when the heat insulation cavity 30 contains inert gas. When the heat insulation cavity 30 is in a vacuum environment, since there are no molecules in a vacuum, it will not be affected by gas convection, and the scattering of thermal radiation can also be almost ignored, so its heat insulation efficiency can also be significantly improved.

[0059] Further, please refer to Figures 1 to 3 , the heat insulation cavity 30 is filled with inert gas, and the inert gas includes at least one of helium, neon, argon, krypton, and xenon.

[0060] Correspondingly, the present application also provides an aerosol generating device, and the aerosol generating device includes the heating component 10 in any one of the above embodiments.

[0061] In this embodiment, since the aerosol generating device includes the heating component 10 in the above embodiment, during the operation of the aerosol generating device, an air pressure difference is formed between the internal air pressure and the external air pressure of the heating component 10. Under the action of the air pressure difference, external gas will enter the cavity 20 through the air permeable holes 301, and flow into the second accommodation cavity 201, and then drive the aerosol to flow out of the second accommodation cavity 201.

[0062] During the flow of the external gas, it will absorb the heat dissipated from the heat insulation member 200 in the cavity 20, and then be discharged through the second accommodation cavity 201, so it plays a continuous cooling and heat dissipation role; at the same time, when the external gas moves in the cavity 20, its temperature will rise to a certain extent, so this part of the gas is equivalent to having been pre-heated, so its heating time in the second accommodation cavity 201 is less than the heating time when external air directly enters the second accommodation cavity 201. Therefore, the aerosol generating device in this embodiment has high aerosol generating efficiency, heat insulation efficiency, and heat dissipation efficiency.

[0063] It can be understood that the aerosol generating devices in the above embodiments include but are not limited to devices such as aromatherapy machines, medical nebulizers, fire sprinkler systems, cleaning equipment, irrigation equipment, beauty instruments, and laboratory solute extraction equipment.

[0064] The above has introduced the embodiments of the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

[0065] Obviously, the embodiments described above are only a part of the embodiments of this application, rather than all of them. The preferred embodiments of this application are shown in the drawings, but they do not limit the patent scope of this application. This application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of this application more thorough and comprehensive. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or equivalently replace some of the technical features. Any equivalent structure made by using the content of this application's specification and drawings, directly or indirectly applied in other related technical fields, is similarly within the scope of this application's patent protection.

[0066] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, combinations, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of this application. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A heating component, characterized in that: The heating assembly comprises: A main body, wherein the main body is provided with a first accommodating cavity and a vent hole; A heat insulating member, the heat insulating member is located in the first accommodating cavity and forms a cavity with the inner wall of the first accommodating cavity, and a second accommodating cavity is arranged inside the heat insulating member; Wherein, the air vent connects the cavity and the external environment, and one end of the second accommodating cavity connects to the cavity, and the other end connects to the external environment.

2. The heating assembly according to claim 1, characterized in that The main body comprises an outer shell, a bottom cover and a top cover, wherein the top cover is plugged into one end of the outer shell, and the bottom cover is plugged into the other end of the outer shell; the two ends of the heat insulating member are respectively supported against the top cover and the bottom cover.

3. The heating assembly according to claim 2, characterized in that The top cover is provided with a through hole and a vent hole, and the through hole communicates with the second accommodating cavity and the external environment; The bottom cover is provided with an air guide channel, and the air guide channel is connected with the second accommodating cavity and the cavity.

4. The heating assembly according to claim 3, characterized in that The air guide channel includes an air inlet hole and an air inlet groove, the bottom cover includes a base and a support seat, the support seat is connected to the base, the heat insulation member is inserted into the support seat, the air inlet hole passes through the support seat along the direction from the base to the heat insulation member, the air inlet groove is located on the side wall of the support seat, and connects the air inlet hole and the cavity.

5. The heating assembly according to claim 4, characterized in that There are multiple air inlet grooves, and the multiple air inlet grooves are symmetrically distributed about the central axis of the air inlet hole; and / or, There are also a plurality of ventilation holes, and the plurality of ventilation holes are symmetrically distributed about the central axis of the through hole.

6. The heating assembly according to claim 4, characterized in that The side wall of the support seat is also provided with an air expansion groove, and the air inlet groove is arranged in the air expansion groove and penetrates the bottom wall of the air expansion groove.

7. The heating assembly according to claim 4, characterized in that The base is provided with a mounting hole, the mounting hole passes through the base and is connected to the air inlet groove; The heating component also includes a lead wire and a hollow heating element, the heating element is located in the second accommodating cavity, at least part of the lead wire is located in the air inlet groove, and one end of the lead wire is passed through the mounting hole.

8. The heating assembly according to claim 1, characterized in that The thermal insulation member includes a first sub-insulation member and a second sub-insulation member, wherein the second sub-insulation member is connected to the outer side wall of the first sub-insulation member, and forms an insulation cavity with the outer side wall of the first sub-insulation member, and forms a cavity with the inner side wall of the first accommodating cavity; Wherein, the thermal insulation cavity is a vacuum environment or is filled with an inert gas.

9. The heating assembly according to claim 8, characterized in that The heat-insulating cavity is filled with an inert gas, and the inert gas includes one of helium, neon, argon, krypton, and xenon.

10. An aerosol generating device, characterized in that: The aerosol generating device comprises the heating assembly according to any one of claims 1 to 9.

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