Aerosol delivery device and heater suitable for aerosol delivery device
By employing a double-layer cavity and heat-conducting column structure within a heat-conducting pipe in the aerosol delivery device, the problems of low heating efficiency and high energy consumption in existing technologies are solved, enabling rapid heating and low-energy aerosol generation, and extending the service life of the heater.
Patent Information
- Application Number
- CN202423312969.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing aerosol heating solutions have low heating efficiency and high energy consumption, and the lifespan of the heater is reduced when it operates at high temperatures.
The design employs a double-layer cavity design within the heat pipe and a heat-conducting column structure. Air enters the first cavity through the air inlet and comes into full contact with the heat-conducting column. After being heated, it flows out through the air outlet, increasing the air heating contact area and improving heating efficiency.
It can rapidly heat aerosol-generated products without increasing the power of the heater, improving heating efficiency, reducing energy consumption, and extending the life of the heater.
Smart Images

Figure CN223773112U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the aerosol generating technical field especially, and it relates to a kind of aerosol delivery device and the heating device suitable for aerosol delivery device. BACKGROUND
[0002] At present, heating aerosol-generating articles (such as non-combustible tobacco products) at a lower temperature can cause aerosol-generating articles to release aerosol without combustion and deliver it to consumers to replace combustible tobacco products. In the prior art, there is a scheme of heating air by a heating device and then heating aerosol-generating articles by the heated air. However, the heating efficiency of the heating device in the prior art is usually low, and the heat loss is large. Therefore, in order to ensure that aerosol-generating articles can be rapidly heated, it is often necessary to increase the power of the heating device, so that the heating device continuously operates at high temperature. This will reduce the service life of the heating device and increase the energy consumption of the product. SUMMARY
[0003] To overcome the problems of low heating efficiency and large product energy consumption in the aerosol heating scheme in the prior art, the utility model provides an aerosol delivery device and a heating device suitable for the aerosol delivery device.
[0004] In view of the above technical problems, the utility model embodiment provides an aerosol delivery device, which comprises a heating device for improving the temperature of the flowing gas. The heating device comprises a heat-conducting pipe, a first base and a second base at least partially accommodated in the heat-conducting pipe. The first base and the second base are respectively mounted at opposite ends of the heat-conducting pipe to form a first cavity. An air inlet hole is provided on the heat-conducting pipe, and an air outlet hole is provided on the first base and communicates with the first cavity. An air flow channel is provided between the first base and the second base, and the air flow channel communicates with the air inlet hole and the first cavity.
[0005] The heating device further comprises a heat-conducting column provided on the second base and extending towards the first base.
[0006] Further, the first base comprises a first heat-conducting plate and a first extension. The first extension is formed by the first heat-conducting plate extending towards the second base. The air outlet hole is provided on the first heat-conducting plate.
[0007] The first cavity is formed between the first heat-conducting plate, the first extension and the second base. The air flow channel is formed between the first extension and the second base.
[0008] Further, the second base body comprises a second heat-conducting plate and a second extension part, the second extension part is extended from the second heat-conducting plate to the first base body, and the heat-conducting column is arranged on the second heat-conducting plate.
[0009] The second extension part is arranged in a staggered manner with the first extension part to divide the heat-conducting pipe into the first cavity and the second cavity, the second cavity is communicated with the air inlet hole and the air flow channel, and the air flow channel is formed between the first extension part and the second extension part.
[0010] Further, the first extension part has a first limiting part, and the second extension part has a first limiting groove, the first limiting part can be embedded in the first limiting groove.
[0011] Further, the first extension part has a second limiting part, the second extension part has a second limiting groove, the second limiting part can be embedded in the second limiting groove, and the second limiting part extends to the second heat-conducting plate to form the air flow channel between the bottom of the second limiting part and the second heat-conducting plate.
[0012] Further, the edge of the first heat-conducting plate is located at the top of the heat-conducting pipe, the radial outer diameter of the first heat-conducting plate is equal to the radial outer diameter of the heat-conducting pipe, the second heat-conducting plate is embedded in the heat-conducting pipe, and the radial outer diameter of the second heat-conducting plate is equal to the radial inner diameter of the heat-conducting pipe.
[0013] Further, the outer wall of the first extension part is close to the inner wall of the heat-conducting pipe, and the outer wall of the second extension part is close to the inner wall of the heat-conducting pipe, so that the first extension part and the second extension part are staggered, the second cavity is formed between the inner wall of the heat-conducting pipe, the bottom of the first extension part and the outer wall of the second extension part, and the first cavity is formed between the inner wall of the first extension part, the inner wall of the second extension part and the first heat-conducting plate and the second heat-conducting plate.
[0014] The utility model embodiment further provides a heating device suitable for aerosol delivery device, including heat conducting pipe, first base body and second base body at least part are contained in heat conducting pipe, first base body and second base body are installed at opposite two ends of heat conducting pipe respectively to enclose first cavity, be equipped with air inlet hole on heat conducting pipe, be equipped with the air outlet hole of intercommunication first cavity on first base body, be equipped with air flow channel between first base body and second base body, air flow channel is intercommunicated in air inlet hole and first cavity.
[0015] Further, the first base body comprises a first heat-conducting plate and a first extension part, the first extension part is extended from the first heat-conducting plate to the second base body, and the air outlet hole is arranged on the first heat-conducting plate.
[0016] The first cavity is formed between the first heat-conducting plate, the first extension and the second base body, and the airflow passage is formed between the first extension and the second base body.
[0017] Further, the second base body comprises a second heat-conducting plate and a second extension, and the second extension extends from the second heat-conducting plate to the first base body.
[0018] The second extension is arranged in a staggered manner with the first extension to divide the heat-conducting pipe into the first cavity and a second cavity, the second cavity is communicated with the air inlet hole and the airflow passage, and the airflow passage is formed between the first extension and the second extension.
[0019] In the aerosol delivery device and the heating device of the above-mentioned embodiments of the utility model, the ambient air can pass through the airflow passage from the air inlet hole into the first cavity for heating, and then flow out through the air outlet hole, so as to heat the aerosol generating article by using the heated air to generate aerosol. In the utility model, the air entering the first cavity from the airflow passage will contact the inner wall of the first cavity and the outer surface of the heat-conducting column, and flow along the heat-conducting column from the second base body to the air outlet hole of the first base body. During the air flow, the air fully contacts the heat-conducting column, which increases the heating contact area of the air, so that the air can be rapidly heated in the first cavity, and the heating effect is further improved. The utility model does not need to increase the heating power of the heating device, but can ensure that the aerosol generating article is rapidly heated, improve the heating efficiency, and reduce the energy consumption of the product. BRIEF DESCRIPTION OF DRAWINGS
[0020] The utility model will be further described in combination with the drawings and embodiments.
[0021] Figure 1 is the structure schematic diagram of aerosol delivery device provided by an embodiment of the utility model.
[0022] Figure 2 is the structure schematic diagram of heating device provided by an embodiment of the utility model.
[0023] Figure 3 is the sectional structure schematic diagram of heating device provided by an embodiment of the utility model.
[0024] Figure 4 is the sectional structure schematic diagram of heating device provided by another embodiment of the utility model.
[0025] Figure 5 is the structure schematic diagram of first base body and second base body of heating device provided by an embodiment of the utility model. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.
[0027] As Figures 1 to 4 shown, the utility model embodiment provides an aerosol delivery device, including for promoting the temperature of flowing through gas heating device 1, heating device 1 includes heat pipe 16, first matrix 17 and second matrix 18 at least partially contained in heat pipe 16, first matrix 17 and second matrix 18 are installed at opposite ends of heat pipe 16 to enclose first cavity 14, heat pipe 16 is equipped with air inlet hole 11, first matrix 17 is equipped with air outlet hole 12 that communicates first cavity 14, air flow channel 15 is equipped between first matrix 17 and second matrix 18, air flow channel 15 communicates air inlet hole 11 and first cavity 14;Heating device 1 further includes heat-conducting column 2 that is arranged on second matrix 18 and extends to first matrix 17.
[0028] Understandably, heat-conducting column 2 is arranged along the axial direction of heat pipe 16, and the central axis of air outlet hole 12 is arranged along the axial direction of heat pipe 2.The air inlet hole 11 is a through hole passing through the wall of the heat pipe 16.In further embodiments, the central axis of the air outlet hole 12 is perpendicular to the central axis of the air inlet hole 11, the central axis of the air outlet hole 12 is parallel to the extension direction of the heat-conducting column 2, and the central axis of the air outlet hole 12 is parallel to the axial direction of the heat pipe 16.
[0029] Understandably, the aerosol delivery device can also include a shell 4, a heat insulation pipe 3, a battery, a key, a control board and other necessary components, as long as the heating device 1 in the above embodiments can be applied to the aerosol delivery device to heat the aerosol generating article 5 to generate aerosol for the user to smoke. Among them, the heat insulation pipe 3 is provided with a first air inlet 31, and the shell 4 is provided with a second air inlet 41, the second air inlet 41 communicates with the first air inlet 31, and the heat insulation pipe 3 can realize good heat insulation and heat preservation effect, improve the thermal efficiency. As Figure 1 indicated by the dashed arrow, external gas enters from the second air inlet 41 on the shell 4 and enters the heat insulation pipe 3 through the first air inlet 31.
[0030] In the aerosol delivery device of the above embodiment of the utility model, the heating body 1 can heat the aerosol generating article 5 to generate aerosol for the user to smoke. Specifically, as Figure 3 and Figure 4The arrow in the figure indicates that the ambient air can enter the first cavity 14 from the air inlet hole 11 through the airflow channel 15 to be heated, and the heated air can be used to heat the aerosol generating article 5 to generate aerosol. In the utility model, the air entering the first cavity 14 from the airflow channel 15 will contact the inner wall of the first cavity 14 and the outer surface of the heat conduction column 2, and flow along the heat conduction column 2 from the second base body 18 to the air outlet hole of the first base body 17. In the process of air flow, the air fully contacts the heat conduction column 2, thereby increasing the heating contact area of the air, so that the air can be rapidly heated in the first cavity 14, and the heating effect is improved. The utility model does not need to increase the heating power of the heater 1, and can ensure that the aerosol generating article 5 is rapidly heated, thereby improving the heating efficiency and reducing the energy consumption of the product.
[0031] Further, the heat conduction column 2 has an upper end 21 and a lower end 22, and the air outlet side of the airflow channel 15 is located on the heat conduction column 2 near the lower end 22, and the air outlet hole 12 is located near the upper end 21 of the heat conduction column 2. In this embodiment, since the air outlet of the airflow channel 15 is located on the heat conduction column 2 near the lower end 22, the air entering the first cavity 14 from the air outlet of the airflow channel 15 will impact the lower end 22 of the heat conduction column 2, and flow along the heat conduction column 2 from the lower end 22 to the upper end 21. In the process of air flow, the air fully contacts the heat conduction column 2, thereby further increasing the heating contact area of the air, so that the air can be rapidly heated in the first cavity 14, and the heating effect is further improved.
[0032] In an embodiment, as shown in Figures 3 to 5 The first base body 17 includes a first heat conduction plate 171 and a first extension 172, the first extension 172 extends from the first heat conduction plate 171 to the second base body 18, and the air outlet hole 12 is arranged on the first heat conduction plate 171; the first cavity 14 is formed between the first heat conduction plate 171, the first extension 172 and the second base body 18, and the airflow channel is formed between the first extension 172 and the second base body 18.
[0033] In the embodiment shown in Figure 4 The first extension 172 extends downward toward the second base body 18, and the airflow channel 15 is formed between the bottom of the first extension 172 and the second base body 18, so that the air outlet of the airflow channel 15 is located on the heat conduction column 2 near the lower end 22, thereby increasing the heating contact area between the air entering the first cavity 14 and the heat conduction column 2, and improving the heating efficiency.
[0034] In an embodiment, the second base 18 comprises a second heat-conducting plate 181 and a second extension 182, the second extension 182 extending from the second heat-conducting plate 181 towards the first base 17, and the heat-conducting column 2 is arranged on the second heat-conducting plate 181; the second extension 182 is arranged in a staggered manner with the first extension 172 to divide the heat-conducting pipe 16 into the first cavity 14 and the second cavity 13, the second cavity 13 is communicated with the air inlet hole 11 and the air flow channel 15, and the air flow channel 15 is formed between the first extension 172 and the second extension 182. Understandably, the heat-conducting pipe 16, the first base 17, the second base 18, the heat-conducting column 2 and the like are made of, but not limited to, a heat-conducting material such as ceramic.
[0035] In this embodiment, the double-layer design of the first cavity 14 and the second cavity 13 can make the air stay in the heating device 1 for a longer time, thereby increasing the contact area of the air with the first cavity 14 and the second cavity 13, and further increasing the contact time, improving the heat exchange rate and the heating effect. Understandably, the second cavity 13 can be arranged in a ring shape, and the staggered arrangement of the second extension 182 and the first extension 172 will form a ring-shaped partition to separate the second cavity 13 and the first cavity 14, and the air flow channel 15 is formed between the first extension 172 and the second extension 182 to allow the air flow from the second cavity 13 into the first cavity 14. The air entering the air inlet hole 11 will circulate in the ring-shaped second cavity 13 and be heated to the maximum extent, and then enter the first cavity 14 through the air flow channel 15, further improving the heating effect.
[0036] Understandably, the number and arrangement position of the air inlet hole 11 and the air outlet hole 12 can be arranged according to the requirements, and in Figures 1 to 4 In the embodiment shown, two air inlet holes 11 are arranged on the side wall of the heat-conducting pipe 16 in a relative manner. A plurality of air outlet holes 12 are arranged on the first heat-conducting plate 171 in a staggered manner. In Figure 4 In the embodiment shown, the air can enter the second cavity 13 through the air inlet holes 11 on both sides, and then circulate around the second cavity 13, and then enter the first cavity 14, so that the air is fully heated in the circulation process, thereby improving the heating efficiency.
[0037] In an embodiment, as shown in Figure 3 and Figure 5As shown, the first extension 172 has a first limiting portion 173, and the second extension 182 has a first limiting groove 183, and the first limiting portion 173 can be embedded in the first limiting groove 183. In this embodiment, the first limiting portion 173 is oppositely arranged with the first limiting groove 183, and the first limiting portion 173 is arranged at the lower end 22 of the first extension 172 and extends downward until embedded in the first limiting groove 183. The embedded design of the first limiting portion 173 and the first limiting groove 183 makes the first base body 17 and the second base body 18 can be stably installed in the heat conduction pipe 16 according to the preset position, and then clearly separate the first cavity 14 and the second cavity 13 to form a double layer, so as to increase the heating contact area of the air.
[0038] In an embodiment, as shown in Figure 4 and Figure 5 the first extension 172 has a second limiting portion 174, and the second extension 182 has a second limiting groove 184, and the second limiting portion 174 can be embedded in the second limiting groove 184, and the second limiting portion 174 extends to the vicinity of the second heat conduction plate 181 to form an air flow channel 15 between the bottom of the second limiting portion 174 and the second heat conduction plate 181. In this embodiment, the second limiting portion 174 is oppositely arranged with the second limiting groove 184, and the second limiting portion 174 is arranged at the lower end 22 of the first extension 172 and extends downward until embedded in the second limiting groove 184 near the second heat conduction plate 181, at this time, the second limiting portion 174 and the second heat conduction plate 181 keep a certain distance, and the air flow channel 15 will be formed at the lower end 22 of the heating device 1 near the second heat conduction plate 181, so that the orthographic projection of the outlet of the air flow channel 15 is located on the heat conduction column 2 near the lower end 22, so as to increase the heating contact area between the air entering the first cavity 14 and the heat conduction column 2, and realize the improvement of the heating efficiency.
[0039] In an embodiment, as shown in Figure 3 and Figure 4As shown, the edge of the first heat-conducting plate 171 is located at the top of the heat-conducting pipe 16, and the radial outer diameter of the first heat-conducting plate 171 is equal to the radial outer diameter of the heat-conducting pipe 16. The second heat-conducting plate 181 is embedded in the heat-conducting pipe 16, and the radial outer diameter of the second heat-conducting plate 181 is equal to the radial inner diameter of the heat-conducting pipe 16. In this embodiment, the first heat-conducting plate 171 and the second heat-conducting plate 181 are both circular, and the heat-conducting pipe 16 is cylindrical. The first heat-conducting plate 171, the second heat-conducting plate 181, and the heat-conducting pipe 16 are coaxially arranged. The edge of the first heat-conducting plate 171 overlaps the top of the heat-conducting pipe 16, and the outer sidewall of the second heat-conducting plate 181 fits and is embedded in the heat-conducting pipe 16. This allows the first substrate 17 to be securely installed on the top of the heat-conducting pipe 16, and the second substrate 18 to be securely installed inside the heat-conducting pipe 16. Furthermore, this prevents aerosols in the first cavity 14 and the second cavity 13 from escaping from the connection points between the first substrate 17 and the second substrate 18 and the heat-conducting pipe 16. Simultaneously, since the radial outer diameter of the first heat-conducting plate 171 is equal to the radial outer diameter of the heat-conducting pipe 16, and the radial outer diameter of the second heat-conducting plate 181 is equal to the radial inner diameter of the heat-conducting pipe 16, the entire heater 1 will have a regular cylindrical appearance, resulting in a more aesthetically pleasing shape.
[0040] In one embodiment, such as Figure 3 and Figure 4 As shown, the outer wall of the first extension 172 is in close contact with the inner wall of the heat pipe 16, and the outer wall of the second extension 182 is spaced from the inner wall of the heat pipe 16, so that the first extension 172 and the second extension 182 are misaligned. A second cavity 13 is formed between the inner wall of the heat pipe 16, the bottom of the first extension 172, and the outer wall of the second extension 182. A first cavity 14 is formed between the inner walls of the first extension 172 and the second extension 182 and the first heat-conducting plate 171 and the second heat-conducting plate 181.
[0041] In this embodiment, since the outer wall of the first extension 172 is in close contact with the inner wall of the heat pipe 16, and the second extension 182 has a gap with the inner wall of the heat pipe 16, the second cavity 13 is formed at the bottom of the first extension 172, reducing the maximum height of the second cavity 13. This allows air to circulate within the second cavity 13, which has a smaller height difference with the airflow channel 15. This facilitates more air flowing smoothly into the first cavity 14 near the lower end 22 of the heat-conducting column 2 through the airflow channel 15, thereby extending the contact time between the air and the heat-conducting column 2 in the first cavity 14 and improving heating efficiency. Furthermore, the first cavity 14 is formed between the inner walls of the first extension 172 and the second extension 182, and the first and second heat-conducting plates 171 and 181, further increasing the contact time between the air and the inner wall of the first cavity 14 and the heat-conducting column 2. This allows the air to be fully mixed and heated evenly within the first cavity 14.
[0042] In one embodiment, such asFigure 3 As shown, the air inlet hole 11 is arranged on the heat conduction pipe 16, and the orthographic projection of the air outlet side of the air inlet hole 11 is located on the second extension part 182. In this embodiment, the orthographic projection of the air outlet side of the air inlet hole 11 is located on the second extension part 182, and after the air enters the second cavity 13 from the air inlet hole 11, the air will directly impact on the second extension part 182, thereby diffusing to both sides, promoting the circulating flow of the air in the second cavity 13, and further increasing the heating contact area and contact time of the air, thereby improving the heating effect.
[0043] In an embodiment, as shown, Figures 1 to 4 Further, the heating wire 19 is arranged on the outer side wall of the heat conduction pipe 16; in other embodiments, the heating wire 19 can also be arranged on the inner side wall of the heat conduction pipe 16; in addition, the heating wire 19 can also be embedded in the pipe wall of the heat conduction pipe 16. In this way, the heating wire 19 can be arranged on the inner side wall, the outer side wall of the heat conduction pipe 16 or embedded in the pipe wall of the heat conduction pipe 16 according to the heat transfer requirement, which is not limited in the utility model. In this embodiment, after the heating wire 19 generates heat, the heat will be conducted to the heat conduction pipe 16, and then transmitted to the first base body 17, the second base body 18, the heat conduction column 2, etc., so that the second cavity 13 and the first cavity 14 can both be used for heating air.
[0044] The utility model also provides a kind of heating generator 1 suitable for above-mentioned aerosol delivery device, including heat conduction pipe 16, first base body 17 and second base body 18 at least partially contained in heat conduction pipe 16, first base body 17 and second base body 18 are respectively installed in the opposite two ends of heat conduction pipe 16 to enclose first cavity 14, air inlet hole 11 is provided on heat conduction pipe 16, air outlet hole 12 for communicating first cavity 14 is provided on first base body 17, air flow passage 15 is provided between first base body 17 and second base body 18, air flow passage 15 is communicated in air inlet hole 11 and first cavity 14.
[0045] The heating generator 1 of the above-mentioned embodiment of the utility model can heat the aerosol generating article 5 to generate aerosol for a user to smoke when it is applied to the aerosol delivery device. The specific structure of the heating body 1 can refer to the above-mentioned embodiments, which will not be described here. The heating body 1 of the utility model improves the heating effect and efficiency, and reduces the product energy consumption.
[0046] Further, the first base body 17 includes a first heat conduction plate 171 and a first extension part 172, the first extension part 172 extends from the first heat conduction plate 171 to the second base body 18, and the air outlet hole 12 is arranged on the first heat conduction plate 171; the first cavity 14 is formed between the first heat conduction plate 171, the first extension part 172 and the second base body 18, and the air flow passage 15 is formed between the first extension part 172 and the second base body 18.
[0047] Further, the second base body 18 comprises a second heat-conducting plate 181 and a second extending part 182, the second extending part 182 extending from the second heat-conducting plate 181 to the first base body 17; the second extending part 182 is arranged in a staggered manner with the first extending part 172, so as to divide the heat-conducting pipe 16 to form the first cavity 14 and the second cavity 13; the second cavity 13 is communicated with the air inlet hole 11 and the air flow channel 15, and the air flow channel 15 is formed between the first extending part 172 and the second extending part 182.
[0048] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An aerosol delivery device comprising a heater for elevating the temperature of a gas flowing therethrough, the heater comprising a thermally conductive tube, a first substrate at least partially housed within the thermally conductive tube, and a second substrate, characterized in that, The first base and the second base are respectively installed on opposite ends of the heat pipe to form a first cavity, the heat pipe is provided with an air inlet hole, the first base is provided with an air outlet hole communicating with the first cavity, and an air flow channel is arranged between the first base and the second base and communicates the air inlet hole with the first cavity. The heat generator further comprises a heat conduction column arranged on the second base and extending towards the first base.
2. An aerosol delivery device according to Claim 1, wherein, The first base comprises a first heat conduction plate and a first extension part, the first extension part extends from the first heat conduction plate towards the second base, and the air outlet hole is arranged on the first heat conduction plate. The first cavity is formed between the first heat conduction plate, the first extension part and the second base, and the air flow channel is formed between the first extension part and the second base.
3. An aerosol delivery device according to Claim 2, wherein, The second base comprises a second heat conduction plate and a second extension part, the second extension part extends from the second heat conduction plate towards the first base, and the heat conduction column is arranged on the second heat conduction plate. The second extension part is arranged in a staggered manner with the first extension part to divide the heat pipe into the first cavity and a second cavity, the second cavity communicates the air inlet hole and the air flow channel, and the air flow channel is formed between the first extension part and the second extension part.
4. An aerosol delivery device according to claim 3, wherein, The first extension part has a first limiting part, and the second extension part has a first limiting groove, the first limiting part being capable of being embedded in the first limiting groove.
5. The aerosol delivery device of Claim 3, wherein, The first extension part has a second limiting part, the second extension part has a second limiting groove, the second limiting part being capable of being embedded in the second limiting groove, and the second limiting part extends to be adjacent to the second heat conduction plate to form the air flow channel between the bottom of the second limiting part and the second heat conduction plate.
6. The aerosol delivery device of Claim 3, wherein, An edge of the first heat conduction plate is located at the top of the heat pipe, a radial outer diameter of the first heat conduction plate is equal to a radial outer diameter of the heat pipe, and the second heat conduction plate is embedded in the heat pipe, a radial outer diameter of the second heat conduction plate being equal to a radial inner diameter of the heat pipe.
7. The aerosol delivery device of Claim 3, wherein, An outer wall of the first extension part is close to an inner wall of the heat pipe, an outer wall of the second extension part has a spacing from the inner wall of the heat pipe, so that the first extension part and the second extension part are arranged in a staggered manner, a second cavity is formed between the inner wall of the heat pipe, the bottom of the first extension part and the outer wall of the second extension part, and a first cavity is formed between the inner wall of the first extension part, the inner wall of the second extension part and the first heat conduction plate and the second heat conduction plate.
8. A heat-generating device for use in an aerosol delivery device, comprising a heat-conductive tube, a first substrate at least partially housed within the heat-conductive tube, and a second substrate, wherein, The first base and the second base are respectively installed on opposite ends of the heat pipe to form a first cavity, the heat pipe is provided with an air inlet hole, the first base is provided with an air outlet hole communicating with the first cavity, and an air flow channel is arranged between the first base and the second base and communicates the air inlet hole with the first cavity.
9. A heat-generating device suitable for use in an aerosol delivery device according to claim 8, wherein, The first base comprises a first heat conduction plate and a first extension part, the first extension part extends from the first heat conduction plate towards the second base, and the air outlet hole is arranged on the first heat conduction plate. The first cavity is formed between the first heat-conducting plate, the first extension and the second base body, and the airflow passage is formed between the first extension and the second base body.
10. A heat-generating device suitable for use in an aerosol delivery device according to claim 9, wherein, The second base body comprises a second heat-conducting plate and a second extension, and the second extension extends from the second heat-conducting plate to the first base body. The second extension is arranged in a staggered manner with the first extension to divide the heat-conducting pipe into the first cavity and the second cavity, the second cavity is communicated with the air inlet hole and the airflow passage, and the airflow passage is formed between the first extension and the second extension.