Aerosol generation device and aerosol generation system

Abstract

The application discloses an aerosol generating device and an aerosol generating system. The aerosol generating device comprises a shell, an inner shell and a heating assembly. The shell has a first port. The inner shell is arranged in the shell and has a receiving cavity. The first port is used for inserting an aerosol generating article into the receiving cavity. The heating assembly is arranged in the shell and comprises a mounting seat and a heating element. The mounting seat is arranged at the bottom of the inner shell, and the heating element is arranged on the mounting seat and used for heating the aerosol generating article. The first port and the mounting seat form a first flow channel section and a second flow channel section, and the connection part of the first flow channel section and the second flow channel section forms a neck-in structure. Through the above arrangement, the aerosol overflowing due to not being smoked in time after being heated can be intercepted in the second flow channel section, so that the shell temperature of the corresponding position of the first flow channel section can be reduced. The diffusion volume of the aerosol in the second flow channel section is small, the aerosol cools down more slowly, and the condensation amount is reduced.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an aerosol generating device and an aerosol generating system. Background Technology

[0002] An aerosol generation system generally consists of an aerosol generating device and an aerosol-generating product. The aerosol generating device is used to contain the aerosol-generating product and heat it to generate an aerosol. It can be applied in various fields, such as medical nebulization, beauty nebulization, and recreational inhalation.

[0003] Once the aerosol generating device starts heating to generate aerosol products, it will continuously produce aerosols. If the generated aerosols are not promptly drawn in by the user, they can easily overflow into the airflow channel. Prolonged accumulation of aerosols in the airflow channel can cause condensate buildup. At the same time, the condensate is difficult to clean, and its residue in the airflow channel can lead to corrosion of the airflow channel and increase the temperature of the aerosol generating device's outer shell, affecting the user experience. Summary of the Invention

[0004] This application provides an aerosol generating device and an aerosol generating system to solve the problems in the prior art where aerosol overflow into the airflow channel causes condensate accumulation and increases the shell temperature of the aerosol generating device.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide an aerosol generating device, comprising:

[0006] The outer casing has a first port;

[0007] An inner shell is disposed within the outer shell; the inner shell has a receiving cavity; the first port is used for inserting the aerosol-generated product into the receiving cavity;

[0008] A heating element is disposed within the outer shell; the heating element includes a mounting base and a heating element, the mounting base is disposed at the bottom of the inner shell, and the heating element is disposed on the mounting base for heating the aerosol-generated product;

[0009] Wherein, a first flow channel segment and a second flow channel segment are formed between the first port and the mounting base, and a narrowing structure is formed at the connection between the first flow channel segment and the second flow channel segment.

[0010] The inner side of the inner shell and the outer side of the aerosol generating product form an airflow channel; at least a portion of the inner side of the inner shell protrudes towards the receiving cavity to form a protrusion, thereby dividing the airflow channel into a first channel segment and a second channel segment that are interconnected; the outside atmosphere communicates with the aerosol generating product in sequence through the first channel segment and the second channel segment.

[0011] The inner shell includes an annular sidewall, at least a portion of which is bent toward the receiving cavity to form the protrusion.

[0012] The annular sidewall is bent around its entire circumference toward the receiving cavity at only the middle position to form the protrusion, and the protrusion is spaced apart from the first and second ends of the annular sidewall.

[0013] The annular sidewall is bent around the entire circumference toward the receiving cavity to form the protrusion; the equivalent diameter of the annular sidewall gradually decreases and then gradually increases along the direction from the first end to the second end of the annular sidewall; and the protrusion is axially symmetrical about the middle position of the annular sidewall.

[0014] Wherein, the protrusion transitions in a curved manner along the direction from the first end to the second end of the annular sidewall; or

[0015] The protrusion transitions in a straight line along the direction from the first end to the second end of the annular sidewall; or

[0016] The protrusion transitions in a stepped manner along the direction from the first end to the second end of the annular sidewall.

[0017] The outer shell and the annular sidewall are spaced apart at the protrusion to form a cooling chamber, which contains still air for cooling.

[0018] The inner shell includes an annular sidewall and a convex ring located on the inner surface of the annular sidewall, the convex ring forming the protrusion.

[0019] Wherein, the convex ring is located at the middle position of the annular sidewall and is spaced apart from the first end and the second end of the annular sidewall; or

[0020] The two ends of the convex ring along the axial direction are respectively connected to the inner surfaces of the first and second ends of the annular sidewall.

[0021] Wherein, the convex ring is a solid structure; or

[0022] The convex ring has a cavity inside, or the convex ring and the inner surface of the annular sidewall cooperate to form a cavity.

[0023] The two ends of the convex ring along the axial direction are attached to the inner surface of the annular sidewall, and the middle part protrudes to the side away from the inner surface of the annular sidewall to form a cavity.

[0024] The cavity is a vacuum cavity.

[0025] Wherein, the surface of the convex ring transitions in a curved manner along the direction from the first end to the second end of the annular sidewall; or

[0026] The surface of the convex ring transitions in a straight line along the direction from the first end to the second end of the annular sidewall, or the surface of the convex ring transitions in a stepped manner along the direction from the first end to the second end of the annular sidewall.

[0027] Wherein, the convex ring is integrally formed with the annular sidewall; or

[0028] The convex ring is fixedly connected to the inner surface of the annular sidewall.

[0029] The inner shell includes an annular sidewall and an annular flange connected to a first end of the annular sidewall; the annular flange is spaced apart from a first port of the outer shell, and the annular flange and the outer shell are used to cooperate with the aerosol generating product to form a first flow channel segment; the annular flange and the annular sidewall are used to cooperate with the aerosol generating product to form a second flow channel segment; the annular flange has an air inlet, and the air inlet communicates with the first flow channel segment and the second flow channel segment.

[0030] The inner shell further includes an annular support wall connected to the annular flange, the annular support wall being disposed within the annular sidewall and spaced apart from the annular sidewall; the annular support wall forms the receiving cavity.

[0031] The annular support wall is connected to the side of the annular flange away from the annular sidewall; both the annular sidewall and the annular support wall are hollow cylinders and are coaxially arranged.

[0032] The annular support wall is chamfered at the connection point with the annular flange.

[0033] The aerosol generating device further includes a power supply component, which is disposed inside the housing and electrically connected to the heating element to provide energy to the heating element.

[0034] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide an aerosol generation system, comprising:

[0035] An aerosol generating device, wherein the aerosol generating device includes any of the aerosol generating devices described above;

[0036] Aerosol-generated products.

[0037] The beneficial effects of this application are as follows: Unlike the prior art, this application discloses an aerosol generating device and an aerosol generating system. The aerosol generating device includes a shell, an inner shell, and a heating component. The shell has a first port. The inner shell is disposed inside the shell and has a receiving cavity. The first port is used for inserting the aerosol-generated product into the receiving cavity. The heating component is disposed inside the shell and includes a mounting base and a heating element. The mounting base is disposed at the bottom of the inner shell, and the heating element is disposed on the mounting base for heating the aerosol-generated product. A first flow channel section and a second flow channel section are formed between the first port and the mounting base, and a narrowing structure is formed at the connection between the first flow channel section and the second flow channel section. With the above settings, aerosols that overflow after heating but are not promptly drawn out can be trapped in the second flow channel section. Aerosols are less likely to enter the first flow channel section from the second flow channel section, reducing the amount of aerosols in the first flow channel section and lowering the shell temperature at the corresponding location in the first flow channel section. Because the aerosol diffusion volume in the second flow channel section is smaller, the aerosols cool down more slowly, reducing the amount of aerosol condensation. At the same time, the aerosols concentrated in the second flow channel section have a higher temperature, which can better preheat the outside atmosphere when mixed with the outside atmosphere during the user's drawing process, effectively reducing energy consumption. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0039] Figure 1 This is a schematic diagram of the structure of the first embodiment of the aerosol generation system provided in this application;

[0040] Figure 2 yes Figure 1 A cross-sectional schematic diagram of the provided aerosol generation system;

[0041] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the aerosol-generated product from the provided aerosol generation system;

[0042] Figure 4 yes Figure 1 A cross-sectional schematic diagram of the aerosol generating device in the provided aerosol generating system;

[0043] Figure 5 yes Figure 4 A schematic diagram of the assembly structure of the heating element and inner shell of the provided aerosol generating device in the first embodiment;

[0044] Figure 6 yes Figure 5 A cross-sectional schematic diagram of the provided heating element and inner shell;

[0045] Figure 7 yes Figure 5 Schematic diagram of the cross-section of the inner shell;

[0046] Figure 8 yes Figure 4 A cross-sectional schematic diagram of the second embodiment of the inner shell of the provided aerosol generating device;

[0047] Figure 9 yes Figure 4 A cross-sectional schematic diagram of the inner shell of the provided aerosol generating device according to a third embodiment;

[0048] Figure 10 yes Figure 4 A cross-sectional schematic diagram of the inner shell of the provided aerosol generating device according to a fourth embodiment;

[0049] Figure 11 This is a cross-sectional schematic diagram of the first embodiment of the inner shell in the second embodiment of the aerosol generation system provided in this application;

[0050] Figure 12 This is a cross-sectional schematic diagram of the second embodiment of the inner shell in the second embodiment of the aerosol generation system provided in this application;

[0051] Figure 13 This is a cross-sectional schematic diagram of the inner shell in the third embodiment of the aerosol generation system provided in the second embodiment of this application;

[0052] Figure 14 This is a cross-sectional schematic diagram of the fourth embodiment of the inner shell in the second embodiment of the aerosol generation system provided in this application;

[0053] Figure 15 This is a cross-sectional schematic diagram of the fifth embodiment of the inner shell in the second embodiment of the aerosol generation system provided in this application;

[0054] Figure 16 This is a cross-sectional schematic diagram of the third embodiment of the aerosol generation system provided in this application;

[0055] Figure 17 yes Figure 16 A schematic diagram of the inner shell of the provided aerosol generation system;

[0056] Figure 18 yes Figure 17 A schematic diagram of the cross-section of the inner shell is provided;

[0057] Figure 19 This is a schematic diagram of the inner shell structure of the fourth embodiment of the aerosol generation system provided in this application;

[0058] Figure 20 yes Figure 19 A cross-sectional schematic diagram of the inner shell is provided. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0060] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0061] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0062] See Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of the first embodiment of the aerosol generation system provided in this application. Figure 2 yes Figure 1 A cross-sectional schematic diagram of the provided aerosol generation system. Figure 3 yes Figure 1 A cross-sectional schematic diagram of the aerosol-generated product from the provided aerosol generation system. Figure 4 yes Figure 1 A cross-sectional schematic diagram of the aerosol generating device in the provided aerosol generating system.

[0063] See Figure 1 and Figure 2This application provides an aerosol generation system 300, which includes an aerosol generation device 100 and an aerosol generation article 200. The aerosol generation article 200 is partially housed in the aerosol generation device 100, and the aerosol generation device 100 is used to heat and bake the aerosol generation article 200 to generate aerosol.

[0064] like Figure 3 As shown, the aerosol generating article 200 includes a matrix section 201, a hollow section 202, a cooling section 203, and a filter section 204. The hollow section 202 and the cooling section 203 are disposed between the matrix section 201 and the filter section 204, with the hollow section 202 located at the end of the cooling section 203 near the matrix section 201. The matrix section 201 of the aerosol generating article 200 stores an aerosol generating matrix, which is a solid matrix of plant leaves with a specific aroma, and can generate aerosols under heating conditions. The morphology of the aerosol generating matrix is ​​not limited to ordered solid aerosol generating matrix, disordered solid aerosol generating matrix, and particulate solid aerosol generating matrix. The aerosol generating device 100 heats and bakes the aerosol generating matrix in the matrix section 201 of the aerosol generating article 200 when energized to generate aerosols. The aerosols generated after the aerosol generating matrix is ​​heated accumulate in the hollow section 202, and after being cooled by the cooling section 203, they finally flow through the filter section 204 and are inhaled by the user.

[0065] The hollow section 202 of the aerosol generating article 200 is used to collect aerosols. The hollow section 202 may include a support material, including but not limited to cellulose acetate, polylactic acid, polypropylene, and paper filter media. The cooling section 203 includes a cooling material, including but not limited to polylactic acid and other phase change materials. The filter section 204 contains a filter material to filter impurities in the aerosol. The filter material is spaced apart from the aerosol generating matrix. The filter material includes but is not limited to cellulose acetate, polylactic acid, polypropylene, and paper filter media; at the same time, it increases suction resistance to ensure consistent suction.

[0066] It should be noted that the hollow section 202 and cooling section 203 mentioned above are optional structures. Only the matrix section 201 is a mandatory structure in the aerosol generating article 200, which is used to generate aerosols for the user to inhale. In other embodiments, the aerosol generating article 200 may include the matrix section 201 and the filter section 204; or, the aerosol generating article 200 may include the matrix section 201, the hollow section 202, and the filter section 204; or, the aerosol generating article 200 may include, in addition to the matrix section 201, the hollow section 202, the cooling section 203, and the filter section 204, other structures that can improve the user experience. The aerosol generating article 200 described in this application is not intended to be... Figure 1 The structure shown is limited to this embodiment and is only used for illustration.

[0067] See Figure 4 The aerosol generating device 100 includes a housing 1, a heating element 2, an inner housing 21, and a power supply component 3. The housing 1 has a receiving cavity 11 and a first port 12. The heating element 2, the inner housing 21, and the power supply component 3 are all disposed within the receiving cavity 11 of the housing 1. The inner housing 21 has a receiving cavity 211, which has a second port 213 corresponding to the first port 12. The first port 12 and the second port 213 are used to insert the aerosol generating article 200 into the receiving cavity 211. The heating element 2 includes a mounting base 23 and a heating element 22. The mounting base 23 is disposed at the bottom of the inner housing 21, and the heating element 22 is disposed on the mounting base 23. The power supply component 3 is located on one side of the heating element 2 and is electrically connected to the heating element 22 of the heating element 2. When energized, the heating element 22 of the heating element 2 heats and bakes the aerosol generating article 200 to generate aerosol. The power supply assembly 3 includes a battery 31, a battery bracket 32, and a controller (not shown in the figure). The battery 31 is mounted on the battery bracket 32 ​​and is used to provide power to the heating component 2. The controller is used to control the operation of the aerosol generating device 100. The power supply assembly 3 may also include other components.

[0068] In this application, after the aerosol generating article 200 is inserted into the receiving cavity 211, a first flow channel section 41 and a second flow channel section 42 are formed between the first port 12 of the outer shell 1 and the end of the aerosol generating article 200 inserted into the receiving cavity 211, i.e., between the first port 12 and the mounting base 23. A constriction structure is formed at the connection position of the first flow channel section 41 and the second flow channel section 42 to trap aerosols that overflow into the airway without being sucked in time within the second flow channel section 42. It can be understood that in this application, trapping the aerosols within the second flow channel section 42 makes it difficult for the aerosols to enter the first flow channel section 41 from the second flow channel section 42, thereby reducing the amount of aerosols in the first flow channel section 41 and lowering the shell temperature at the corresponding position of the first flow channel section 41. In addition, because the aerosol diffuses more slowly in the second flow channel section 42, the aerosol cools down more slowly, reducing the amount of aerosol condensation. At the same time, the aerosol concentrated in the second flow channel section 42 has a higher temperature, which can better preheat the outside atmosphere when it mixes with the outside atmosphere during the user's suction process, effectively reducing energy consumption.

[0069] See Figures 5 to 10 , Figure 5 yes Figure 4 A schematic diagram of the assembly structure of the heating element and inner shell of the provided aerosol generating device in the first embodiment. Figure 6 yes Figure 5 The provided cross-sectional schematic diagrams of the heating element and the inner shell are shown. Figure 7 yes Figure 5 A schematic diagram of the cross-section of the inner shell. Figure 8 yes Figure 4A cross-sectional schematic diagram of the second embodiment of the inner shell of the provided aerosol generating device. Figure 9 yes Figure 4 A cross-sectional schematic diagram of the inner shell of the provided aerosol generating device according to a third embodiment. Figure 10 yes Figure 4 A cross-sectional schematic diagram of the fourth embodiment of the inner shell of the provided aerosol generating device.

[0070] See Figure 5 and Figure 6 In this embodiment, the inner side of the inner shell 21 and the outer side of the aerosol generating article 200 cooperate to form an airflow channel 4. At least a portion of the inner side of the inner shell 21 protrudes towards the receiving cavity 211 to form a protrusion 212. The protrusion 212 divides the airflow channel 4 into a first channel segment 41 and a second channel segment 42 that are interconnected. The outside atmosphere communicates with the aerosol generating article 200 by passing through the first channel segment 41 and the second channel segment 42 in sequence.

[0071] It is understood that in this embodiment, at least part of the inner side of the inner shell 21 protrudes towards the receiving cavity 211 to form a protrusion 212. The protrusion 212 divides the airflow channel 4 into a first channel section 41 and a second channel section 42. When the user cannot draw in enough air, and the aerosol generated by the aerosol generating system 300 heating the aerosol generating product 200 overflows into the airflow channel 4, the protrusion 212 can trap the aerosol in the second channel section 42. The aerosol is less likely to enter the first channel section 41 from the second channel section 42. The aerosol in the first channel section 41 is reduced, and the temperature in the first channel section 41 is lower, which is beneficial to reduce the shell temperature at the corresponding position of the first channel section 41, that is, the shell temperature of the user's handheld part of the aerosol generating device 100. Meanwhile, after the aerosol is trapped in the second flow channel section 42, the aerosol's diffusion volume is smaller, resulting in slower cooling, a lower condensation rate, and a smaller condensate volume. This reduces the latent heat of vaporization released during aerosol condensation, and consequently, the latent heat of vaporization absorbed by the outer shell 1 at the corresponding position of the second flow channel section 42 also decreases. This prevents the outer shell 1 from becoming too hot, effectively solving the problem in the prior art where aerosol overflow into the airflow channel 4 causes condensate accumulation and a rise in the shell temperature of the aerosol generating device 100. Furthermore, the aerosol concentrated in the second flow channel section 42 has a higher temperature, allowing for better preheating of the outside atmosphere when it enters the second flow channel section 42 and mixes with the aerosol during user suction, effectively reducing energy consumption.

[0072] For details, please refer to the following: Figure 2 , Figures 4 to 6One end of the outer shell 1 has a first port 12, which is connected to the atmosphere. One end of the inner shell 21 has a second port 213, which is correspondingly provided with the first port 12 and is in fluid communication with it. The aerosol generating article 200 is inserted into the receiving cavity 211 of the inner shell 21 via the first port 12 and the second port 213. The matrix section 201 of the aerosol generating article 200 is located in the receiving cavity 211, and the filter section 204 extends out of the aerosol generating device 100 from the first port 12.

[0073] The first flow channel section 41 is located on the side of the second flow channel section 42 near the second port 213. The end of the first flow channel section 41 away from the second flow channel section 42 is connected to the atmosphere through the second port 213 and the first port 12. The end of the second flow channel section 42 away from the first flow channel section 41 is connected to the bottom end of the matrix section 201 of the aerosol generating article 200. The bottom end of the matrix section 201 is the end of the matrix section 201 near the power supply component 3. After the outside atmosphere enters the airflow channel 4 through the second port 213 and the first port 12, it enters the aerosol generating article 200 through the bottom end of the matrix section 201. Then, the aerosol generated by the heating of the matrix section 201 of the aerosol generating article 200 passes through the hollow section 202 and the cooling section 203 and reaches the port of the filter section 204 to be inhaled by the user.

[0074] In this embodiment, see Figure 5 and Figure 7 The inner shell 21 is a hollow cylinder and includes an annular sidewall 214. At least a portion of the annular sidewall 214 is bent toward the receiving cavity 211 of the inner shell 21 to form a protrusion 212.

[0075] Specifically, in one embodiment, along the circumferential direction of the annular sidewall 214, a protrusion 212 is formed by bending around the entire circumference of the annular sidewall 214 towards the receiving cavity 211 only at the middle position of the annular sidewall 214. The protrusion 212 is spaced apart from the first end 2141 and the second end 2142 of the annular sidewall 214. That is, the annular sidewall 214 of the inner shell 21 contracts around the entire circumference of the receiving cavity 211 only at the middle position, so that both the inner and outer surfaces of the annular sidewall 214 at the middle position protrude towards the receiving cavity 211. The cross-sectional area of ​​the receiving cavity 211 corresponding to the middle position of the annular sidewall 214 is smaller than the cross-sectional area of ​​the second port 213.

[0076] In other embodiments, the protrusion 212 may also be formed by bending the annular sidewall 214 circumferentially toward the receiving cavity 211 from a position other than the middle position. For example, the annular sidewall 214 may be bent circumferentially toward the receiving cavity 211 from a position in the middle of the annular sidewall 214 that is biased toward the second port 213, or the annular sidewall 214 may be bent circumferentially toward the receiving cavity 211 from a position in the middle of the annular sidewall 214 that is biased toward the power assembly 3, to form an annular protrusion 212. The cross-sectional shape of the protrusion 212 formed when the annular sidewall 214 is bent circumferentially toward the receiving cavity 211 from the middle position may also be other than an arc shape. For example, the cross-sectional shape of the protrusion 212 may be any shape such as V-shaped or wavy, and the inner surface of the annular sidewall 214 at the position of the protrusion 212 may also be a folded surface. The protrusion 212 may also be formed by contracting around the entire circumference of the receiving cavity 211 without passing through the middle position of the annular sidewall 214. For example, the protrusion 212 may be formed by protruding towards the receiving cavity 211 at multiple spaced positions in the middle of the annular sidewall 214 along the circumference of the annular sidewall 214. That is, the protrusion 212 may include multiple sub-protrusions spaced apart along the circumference of the annular sidewall 214. The shapes of the multiple sub-protrusions may be the same or different. The cross-sectional shape of the sub-protrusions may be any shape such as V-shaped, arc-shaped, or wavy.

[0077] It is understandable that, compared to the protrusion 212, which includes multiple sub-protrusions spaced apart in the circumferential direction of the annular sidewall 214, the annular protrusion 212 formed by bending the entire circumference of the annular sidewall 214 towards the receiving cavity 211 has a stronger ability to block aerosols. The flow area between the first flow channel section 41 and the second flow channel section 42 formed by the annular protrusion 212 is smaller. The annular protrusion 212 can block aerosols in the second flow channel section 42 at each position in the circumferential direction of the annular sidewall 214. The aerosols are less likely to diffuse from the second flow channel section 42 into the first flow channel section 41. The aerosols are better trapped in the second flow channel section 42, resulting in a better cooling effect on the outer shell 1 at the corresponding position of the first flow channel section 41 of the aerosol generating device 100. The amount of condensate in the second flow channel section 42 will also be less. Meanwhile, compared to bending the middle part of the annular sidewall 214 around the second port 213 to form a protrusion 212, bending the middle part of the annular sidewall 214 around the receiving cavity 211 ensures that the internal space of the first flow channel section 41 and the second flow channel section 42 is not too different. Both the first flow channel section 41 and the second flow channel section 42 can function better, ensuring that the amount of condensate in the second flow channel section 42 is reduced and that the condensate does not accumulate, and also ensuring that the temperature of the outer shell 1 at the position corresponding to the first flow channel section 41 is not too high.

[0078] In other embodiments, along the circumference of the annular sidewall 214, the annular sidewall 214 can be bent around its entire circumference toward the receiving cavity 211 to form a protrusion 212. That is, unlike the first embodiment, in this embodiment, not only is the middle portion bent toward the receiving cavity 211, but the entire circumference of the annular sidewall 214 is bent toward the receiving cavity 211 to form the protrusion 212. The equivalent diameter of the annular sidewall 214 gradually decreases and then gradually increases along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214, and the protrusion 212 is symmetrically arranged about the middle position of the annular sidewall 214. The protrusion 212 minimizes the equivalent diameter at the middle position of the annular sidewall 214, forming a constriction structure at the middle position. The protrusion 212 divides the airflow channel 4 into a first channel section 41 and a second channel section 42, trapping aerosols in the second channel section 42, preventing aerosols from diffusing into the first channel section 41, reducing aerosol condensation, and effectively lowering the shell temperature at the position of the first channel section 41.

[0079] like Figure 8 As shown, in one embodiment, the annular sidewall 214 is bent around the circumference of the receiving cavity 211 to form a protrusion 212. The equivalent diameter of the annular sidewall 214 gradually decreases and then gradually increases along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. The protrusion 212 is curved along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. Specifically, the surface of the protrusion 212 is arc-shaped, the longitudinal section of the protrusion 212 is arc-shaped, and the protrusion 212 is symmetrically arranged about the middle position of the annular sidewall 214. The arc-shaped protrusion 212 makes the equivalent diameter at the middle position of the annular sidewall 214 the smallest.

[0080] like Figure 9 As shown, in another embodiment, the annular sidewall 214 is bent around the circumference of the receiving cavity 211 to form a protrusion 212. The equivalent diameter of the annular sidewall 214 gradually decreases and then gradually increases along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. The protrusion 212 transitions in a straight line along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. Specifically, the protrusion 212 is symmetrically arranged about the middle position of the annular sidewall 214. The surfaces on both sides of the protrusion 212 at the middle position are planar. The longitudinal section of the protrusion 212 is approximately V-shaped. The protrusion 212 makes the equivalent diameter at the middle position of the annular sidewall 214 the smallest.

[0081] like Figure 10As shown, in another embodiment, the annular sidewall 214 is bent around the circumference of the receiving cavity 211 to form a protrusion 212. The equivalent diameter of the annular sidewall 214 gradually decreases and then gradually increases along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. The protrusion 212 has a stepped transition along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. Specifically, the surface of the protrusion 212 is a folded surface, the longitudinal cross-sectional shape of the protrusion 212 is stepped, and the protrusion 212 is symmetrically arranged about the middle position of the annular sidewall 214. The protrusion 212 makes the equivalent diameter at the middle position of the annular sidewall 214 the smallest.

[0082] See Figure 2 and Figure 3 In this embodiment, since at least a portion of the annular sidewall 214 of the inner shell 21 bends toward the receiving cavity 211 to form a protrusion 212, and both the inner and outer surfaces of the annular sidewall 214 at the protrusion 212 protrude toward the receiving cavity 211, the outer shell 1 of the aerosol generating device 100 and the annular sidewall 214 of the inner shell 21 are spaced apart at the protrusion 212 to form a cooling cavity 5. The cooling cavity 5 contains still air, which allows the cooling cavity 5 to play a certain heat insulation role, which is beneficial to reducing the temperature of the outer shell 1. At the same time, the outer shell 1 and the annular sidewall 214 at the corresponding position of the cooling cavity 5 are spaced apart, making it difficult for the heat of the annular sidewall 214 to be transferred to the outer shell 1, further reducing the temperature of the outer shell 1 at the corresponding position of the cooling cavity 5, that is, reducing the temperature of the user's handheld part of the aerosol generating device 100, improving the performance of the aerosol generating device 100, and thus improving the user experience. In this embodiment, since the protrusion 212 forms an annular structure by contracting from the middle of the annular sidewall 214 towards the receiving cavity 211, the structure of the cooling cavity 5 is also annular. In other embodiments, the structure of the cooling cavity 5 may also be different depending on the different arrangement and structure of the protrusion 212. This application does not limit this and the design can be carried out as needed.

[0083] See Figure 5 and Figure 6The heating element 2 includes a mounting base 23, which is located at the bottom of the inner shell 21, specifically at the end of the inner shell 21 furthest from the second port 213. In this embodiment, the heating element 22 is a cylindrical structure. Specifically, the mounting base 23 has a mounting hole 231. One end of the heating element 22 is fixed in the mounting hole 231 of the mounting base 23, and the other end extends into the receiving cavity 211 of the inner shell 21 for insertion into the matrix segment 201 of the aerosol generating article 200. The heating element 22 is electrically connected to the power supply component 3, and can heat and bake the aerosol generating matrix in the aerosol generating article 200 through resistance heating when energized. In other embodiments, the heating element 22 can also heat and bake the aerosol generating article 200 through infrared radiation when energized. In this case, the outer surface of the cylindrical heating element 22 can be coated with an infrared material (not shown).

[0084] In other embodiments, the heating element 22 can be configured with other structures, and the heating assembly 2 can also heat the aerosol generating article 200 in other ways. In one specific embodiment, the heating element 22 is disposed on the inner shell 21 and surrounds the aerosol generating article 200. When energized, the heating element 22 can heat the aerosol generating article 200 by resistance heating or infrared radiation. When heating the aerosol generating article 200 by infrared radiation, the surface of the heating element 22 is coated with an infrared material.

[0085] In one specific embodiment, the inner shell 21 may be made of conductive material so that the inner shell 21 can be directly used as a heating element 22. The inner shell 21 can heat the aerosol generating product 200 by resistance heating or infrared radiation when energized. The inner surface of the inner shell 21 may be coated with infrared material for infrared radiation heating of the aerosol generating product 200 when energized.

[0086] In one specific embodiment, the heating component 2 heats the aerosol generating article 200 by electromagnetic induction heating. The heating element 22 includes a coil and a metal component. The coil is disposed outside the inner shell 21 and surrounds the aerosol generating article 200. One end of the metal component is fixed to the mounting base 23, and the other end extends into the receiving cavity 211 of the inner shell 21 and is inserted into the matrix segment 201 of the aerosol generating article 200. The metal component generates heat through electromagnetic induction with the coil disposed around the inner shell 21, and heats and bakes the aerosol generating matrix in the aerosol generating article 200 to generate aerosol.

[0087] In one specific embodiment, a metal layer is provided on the outer surface of the aerosol generating article 200, and the heating element 22 includes a coil. The coil is disposed outside the inner shell 21 and surrounds the periphery of the aerosol generating article 200. The coil is used to provide an electromagnetic field to the metal layer of the aerosol generating article 200 so that the metal layer of the aerosol generating article 200 heats up by electromagnetic induction and heats and bakes the aerosol generating matrix in the aerosol generating article 200 to generate aerosol.

[0088] See Figures 11 to 15 , Figure 11 This is a cross-sectional schematic diagram of the inner shell in the second embodiment of the aerosol generation system provided in this application, representing the first implementation method. Figure 12 This is a cross-sectional schematic diagram of the inner shell in the second embodiment of the aerosol generation system provided in this application. Figure 13 This is a cross-sectional schematic diagram of the inner shell in the third embodiment of the aerosol generation system provided in the second embodiment of this application. Figure 14 This is a cross-sectional schematic diagram of the fourth embodiment of the inner shell in the second embodiment of the aerosol generation system provided in this application. Figure 15 This is a cross-sectional schematic diagram of the fifth embodiment of the inner shell in the second embodiment of the aerosol generation system provided in this application.

[0089] The aerosol generation system 300 in this embodiment differs from the first embodiment in that the structure of the inner shell 21 is different from that in the first embodiment. The rest of the structure is the same as that in the first embodiment of the aerosol generation system 300, and will not be described again.

[0090] See Figure 11 and Figure 12 In this embodiment, the inner shell 21 includes not only an annular sidewall 214, but also a protrusion 212 located on the inner surface of the annular sidewall 214. The protrusion 212 on the inner surface of the annular sidewall 214 causes a portion of the inner side of the inner shell 21 to protrude toward the receiving cavity 211, thereby dividing the airflow channel 4 into a first channel segment 41 and a second channel segment 42 that are interconnected. This solves the problem in the prior art where aerosol overflow into the airflow channel 4 causes the outer shell 1 of the aerosol generating device 100 to heat up and condensate to accumulate. That is, unlike the inner shell 21 in the first embodiment, the protrusion 212 in this embodiment is directly provided on the inner surface of the annular sidewall 214, and is not formed by bending the annular sidewall 214 toward the receiving cavity 211.

[0091] Specifically, in this embodiment, the inner shell 21 includes an annular sidewall 214 and a protruding ring disposed on the inner surface of the annular sidewall 214. The protruding ring is a protrusion 212, which is arranged in a circle around the circumference of the annular sidewall 214. The protruding ring may be disposed only at the middle position of the annular sidewall 214, or it may be disposed at other positions of the annular sidewall 214. The protruding ring may be integrally formed with the annular sidewall 214, or it may be connected to the inner surface of the annular sidewall 214.

[0092] like Figure 11 and Figure 12 As shown, in one embodiment, the protruding ring, i.e. the protrusion 212, is located at the middle position of the annular sidewall 214 and is spaced apart from the first end 2141 and the second end 2142 of the annular sidewall 214. The cross-sectional shape of the protruding ring is semi-circular, the surface of the protruding ring near the receiving cavity 211 is arc-shaped, and the protruding ring is a solid structure.

[0093] like Figure 11 As shown, the convex ring and the annular sidewall 214 are integrally formed, with the convex ring protruding towards the receiving cavity 211, while the outer surface of the annular sidewall 214 does not bend or protrude towards the receiving cavity 211. In another embodiment, as... Figure 12 As shown, the convex ring and the annular sidewall 214 are not integrally formed. The convex ring is fixedly connected to the inner surface of the annular sidewall 214, causing the inner surface of the inner shell 21 to protrude towards the receiving cavity 211, while the outer surface of the annular sidewall 214 does not protrude towards the receiving cavity 211. Specifically, the fixed connection between the convex ring and the annular sidewall 214 can be achieved by any method such as welding, bonding, or snap-fitting, and this application does not impose any limitation.

[0094] In another embodiment, such as Figure 13As shown, the protruding ring, or protrusion 212, is located on the inner surface of the annular sidewall 214. The two ends of the protruding ring along the axial direction are respectively connected to the inner surfaces of the first end 2141 and the second end 2142 of the annular sidewall 214. That is, in this embodiment, the protruding ring is not only located at the middle of the annular sidewall 214, but its two ends are also not spaced apart from the first end 2141 and the second end 2142 of the annular sidewall 214. In this embodiment, the protruding ring is a solid structure, fixedly connected to the inner surface of the annular sidewall 214. The protruding ring on the inner surface of the annular sidewall 214 causes the equivalent diameter of the receiving cavity 211 to gradually decrease and then gradually increase along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. The inner surface of the protruding ring has a curved transition along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214, and the inner surface of the protruding ring is an arc surface. The equivalent diameter of the containment cavity 211 is smallest at the corresponding position in the middle of the annular sidewall 214. That is, the inner shell 21 forms a constriction structure in the middle position, which divides the airflow channel 4 into a first channel section 41 and a second channel section 42, so as to trap the aerosol in the second channel section 42 and prevent the aerosol from spreading to the first channel section 41.

[0095] like Figure 14 As shown, in another embodiment, the protruding ring, i.e. the protrusion 212, and the annular sidewall 214 can be integrally formed. The two ends of the protruding ring extend axially to the first end 2141 and the second end 2142 of the annular sidewall 214, respectively. The protruding ring is a solid structure. The equivalent diameter of the receiving cavity 211 gradually decreases and then gradually increases along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. The equivalent diameter of the receiving cavity 211 is the smallest at the corresponding position in the middle of the annular sidewall 214. The inner surface of the protruding ring still has a curved transition along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214.

[0096] It is understood that in other embodiments, the inner surface of the convex ring may also have any form of transition, such as a straight transition or a stepped transition, along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. For example, the inner surface of the convex ring may have a straight transition, the longitudinal section of the convex ring may be triangular, and the size of the convex ring may be the largest at the middle position of the annular sidewall 214, so that the equivalent diameter of the receiving cavity 211 at the middle position is the smallest, so as to trap the aerosol into the second flow channel section 42. The convex ring may also not be a solid structure. For example, a cavity may be provided inside the convex ring, so that the convex ring forms a hollow structure. The cavity can play a certain role in heat insulation, so that the temperature of the outer shell 1 corresponding to the cavity position of the inner shell 21 can be effectively reduced, thereby reducing the temperature of the handheld part and improving the user experience.

[0097] like Figure 15As shown, in another embodiment, the two ends of the convex ring, i.e., the protrusion 212, are fitted with the inner surface of the annular sidewall 214 along the axial direction. Specifically, the two ends of the convex ring are fitted with the inner surfaces of the first end 2141 and the second end 2142 of the annular sidewall 214, respectively. The middle part of the convex ring protrudes away from the inner surface of the annular sidewall 214, and the convex ring and the inner surface of the annular sidewall 214 fit together to form a cavity 215. At the middle position of the annular sidewall 214, the convex ring protrudes the greatest distance towards the receiving cavity 211, that is, the equivalent diameter of the receiving cavity 211 at the middle position of the annular sidewall 214 is the smallest, and a constriction structure is formed at the middle position. The size of the cavity 215 is the largest at the middle position of the annular sidewall 214. The receiving cavity 211 forms a first flow channel section 41 and a second flow channel section 42 on both sides corresponding to the middle position of the annular sidewall 214, so as to trap the aerosol into the second flow channel section 42. The convex ring has a curved transition along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. Specifically, the inner surface of the convex ring is arc-shaped, and the longitudinal cross-section of the convex ring is arc-shaped. In other embodiments, the inner surface of the convex ring may also have a straight transition or a stepped transition along the direction from the first end 2141 to the second end 2142 of the annular sidewall 214. For example, the convex ring may have a straight transition, and the longitudinal cross-section of the convex ring may have a V-shaped structure, etc.

[0098] In this embodiment, the cavity 215 formed by the fit between the convex ring and the inner surface of the annular sidewall 214 can be a vacuum cavity. The vacuum cavity can play a role in heat insulation, effectively preventing the heat in the airflow channel 4 from being transferred to the outer shell 1 through the inner shell 21, thereby reducing the temperature of the outer shell 1 at the corresponding position of the cavity 215.

[0099] In other embodiments, the two ends of the convex ring can also be connected to other positions on the inner surface of the annular sidewall 214. That is, the two ends of the convex ring do not necessarily have to be connected to the corresponding positions of the first end 2141 and the second end 2142. The convex ring can be set as a solid structure or a hollow structure. A cavity can be set directly inside the convex ring, or the cavity can be formed by the convex ring and the inner surface of the annular sidewall 214. The cavity can be set at the middle position of the annular sidewall 214, or it can be set at other positions, which can be designed as needed.

[0100] In this embodiment, since the protrusion 212 is directly disposed on the inner surface of the annular sidewall 214, and the outer surface of the annular sidewall 214 is not bent or protruded toward the receiving cavity 211, there is no gap between the annular sidewall 214 and the outer shell 1, and therefore no cooling cavity 5 is formed.

[0101] In other embodiments, the protrusions 212 provided on the inner surface of the annular sidewall 214 may also have other shapes. For example, the cross-sectional shape of the protruding ring located at the center of the inner surface of the annular sidewall 214 may be circular, rectangular, or other shapes. Alternatively, multiple protrusions may be provided at intervals along the circumference of the annular sidewall 214 at the center of the inner surface of the annular sidewall 214. These multiple protrusions serve as protrusions 212, and their cross-sectional shapes may be rectangular, square, circular, triangular, or any other shape. The shapes of the multiple protrusions may be the same or different. The protrusions 212 provided on the inner surface of the annular sidewall 214 may be located at the center of the annular sidewall 214 or at other locations offset from the center of the annular sidewall 214.

[0102] It is understandable that, compared to setting the protrusion 212 as multiple protrusions spaced circumferentially along the annular sidewall 214, setting a protruding ring as the protrusion 212 on the inner surface of the annular sidewall 214 has a better separation effect on the airflow channel 4. The protruding ring has a stronger blocking effect on the aerosol in the second channel section 42, and the aerosol in the second channel section 42 is less likely to diffuse into the first channel section 41. Meanwhile, compared to placing the convex ring at other positions offset from the center of the annular sidewall 214, placing the convex ring at the center of the inner surface of the annular sidewall 214 or symmetrically arranging the convex ring about the center of the annular sidewall 214 ensures that the internal space difference between the first flow channel section 41 and the second flow channel section 42 is not too large. Both the first flow channel section 41 and the second flow channel section 42 can function better, ensuring that the amount of condensate in the second flow channel section 42 is reduced, the latent heat of vaporization released by condensation is less, the condensate does not accumulate, and the temperature of the outer shell 1 at the corresponding position of the second flow channel section 42 is not too high. It also ensures that the temperature of the outer shell 1 at the corresponding position of the first flow channel section 41 is not too high. The distance between the second flow channel section 42 and the first port 12 must be greater than 1 cm to ensure that the temperature of the outer shell 1 at the user's handheld part, i.e., the first flow channel section 41, is not too high.

[0103] See Figures 16 to 18 , Figure 16 This is a cross-sectional schematic diagram of the third embodiment of the aerosol generation system provided in this application. Figure 17 yes Figure 16 A schematic diagram of the inner shell of the provided aerosol generation system. Figure 18 yes Figure 17 A cross-sectional schematic diagram of the inner shell is provided.

[0104] The aerosol generation system 300 in this embodiment differs from the first embodiment in that the structure of the inner shell 21 is different from that in the first embodiment. The rest of the structure is the same as that in the first embodiment of the aerosol generation system 300, and will not be described again.

[0105] See Figure 16 and Figure 17 In this embodiment, the inner shell 21 includes an annular sidewall 214 and an annular flange 216 connected to the first end 2141 of the annular sidewall 214. The aerosol generating product 200 is inserted into the receiving cavity 211 through the first port 12 and the second port 213 of the inner shell 21, i.e., the central hole of the annular flange 216. The annular flange 216 is spaced apart from the first port 12 of the outer shell 1, that is, the first end 2141 of the annular sidewall 214 is spaced apart from the first port 12 of the outer shell 1. The annular flange 216, the outer shell 1, and the aerosol generating product 200 cooperate to form a first flow channel section 41, that is, the first flow channel section 41 is formed at the spaced position between the annular flange 216 and the first port 12. The annular flange 216, the annular sidewall 214, and the outer surface of the aerosol generating product 200 cooperate to form a second flow channel section 42, that is, the receiving cavity 211 of the inner shell 21 and the aerosol generating product 200 cooperate to form the second flow channel section 42. An air inlet 217 is provided on the annular flange 216. The air inlet 217 is used to connect the first flow channel section 41 and the second flow channel section 42. After the external airflow enters the first flow channel section 41 through the first port 12, it enters the second flow channel section 42 through the air inlet 217 and then enters the aerosol generating product 200 through the bottom end.

[0106] In this embodiment, the outer surface of the aerosol generating product 200 is in contact with the inner surface of the annular flange 216, i.e., the wall of the second port 213. The airflow enters the second flow channel section 42 from the first flow channel section 41 through the air inlet 217. That is, the first flow channel section 41 and the second flow channel section 42 are connected through the air inlet 217. Since the air inlet 217 is small in size, a constriction structure is formed at the connection between the first flow channel section 41 and the second flow channel section 42. The constriction structure is the air inlet 217. Even if the aerosol generated by heating and baking the aerosol generating product 200 overflows from the aerosol generating product 200, it will be trapped in the second flow channel section 42. The aerosol is not easily diffused from the second flow channel section 42. The aerosol dispersed into the first flow channel section 41 can effectively reduce the amount of aerosol in the first flow channel section 41 and lower the shell temperature at the corresponding location of the first flow channel section 41. At the same time, compared with the aerosol overflowing into the entire airflow channel, in this embodiment, the aerosol is trapped in the second flow channel section 42. The aerosol diffusion volume in the second flow channel section 42 is smaller, resulting in slower cooling of the aerosol and a reduction in the amount of aerosol condensation. Meanwhile, the aerosol concentrated in the second flow channel section 42 has a higher temperature, which can better preheat the outside atmosphere when it mixes with the outside atmosphere during the user's suction process, effectively reducing energy consumption. This effectively solves the problem in the prior art of aerosol overflowing into the airflow channel, causing condensate accumulation and increased shell temperature of the aerosol generating device.

[0107] The dimensions of the first flow channel section 41 and the second flow channel section 42 can be equal or unequal. The dimensions of the first flow channel section 41 and the second flow channel section 42 will not differ too much, which can ensure that both the first flow channel section 41 and the second flow channel section 42 can play a good role. This can effectively ensure that the temperature of the outer shell 1 of the corresponding position of the first flow channel section 41, i.e. the handheld part, is not too high, and also ensure that the amount of aerosol condensation in the second flow channel section 42 is not too much. This effectively reduces the amount of aerosol condensate, avoids the accumulation of condensate, and also lowers the shell temperature, thereby improving the performance of the aerosol generating device 100.

[0108] like Figure 17 As shown, both the annular flange 216 and the annular sidewall 214 are hollow cylinders. Two air inlets 217 are provided on the annular flange 216. Both air inlets 217 are rectangular holes and are symmetrically arranged about the axis of the aerosol generating device 100. In other embodiments, the annular flange 216 and the annular sidewall 214 can also be configured with other shapes corresponding to the outer shell 1. For example, the annular sidewall 214 and the annular flange 216 can be configured as hollow quadrangular prisms, and the air inlets 217 can be configured as square, circular, elliptical, or any other arbitrary shape. The number of air inlets 217 can be set to one, three, four, or any other arbitrary number. Multiple air inlets 217 can be evenly distributed along the circumference of the annular flange 216 or randomly distributed.

[0109] See Figures 19 to 20 , Figure 19 This is a schematic diagram of the inner shell structure of the fourth embodiment of the aerosol generation system provided in this application. Figure 20 yes Figure 19 A cross-sectional schematic diagram of the inner shell is provided.

[0110] The aerosol generation system 300 in this embodiment differs from the first embodiment in that the structure of the inner shell 21 is different from that in the first embodiment. The rest of the structure is the same as that in the first embodiment of the aerosol generation system 300, and will not be described again.

[0111] The inner shell 21 in this embodiment differs from the inner shell 21 in the third embodiment of the aerosol generation system 300 in that the inner shell 21 in this embodiment includes not only annular sidewall 214 and annular flange 216, but also annular support wall 218 connected to the annular flange 216. The annular support wall 218 is disposed inside the annular sidewall 214 and spaced apart from the annular sidewall 214. The annular support wall 218 is used to fit with the aerosol generation product 200.

[0112] Specifically, such as Figure 20As shown, the annular support wall 218 is connected to the side of the annular flange 216 away from the annular sidewall 214. The annular flange 216, the annular sidewall 214, and the annular support wall 218 are all hollow cylinders. The annular flange 216 is located between the annular sidewall 214 and the annular support wall 218. The thickness of the annular flange 216 is less than the thickness of the annular sidewall 214 and the annular support wall 218. The annular sidewall 214 and the annular support wall 218 are coaxially arranged. The aerosol generating product 200 is inserted into the annular support wall 218 through the first port 12 and the second port 213, i.e., the central hole of the annular support wall 218. A chamfer C is provided at the connection position between the annular support wall 218 and the annular flange 216. Specifically, the chamfer C is provided on the inner side of the port of the annular support wall 218. It can be understood that providing the chamfer C on the inner side of the port of the annular support wall 218 facilitates the insertion of the aerosol generating product 200 into the annular support wall 218 from the port. The annular support wall 218 can better position the aerosol generating product 200, preventing the aerosol generating product 200 from being mispositioned or moving within the inner shell 21, which would affect the heating effect on the aerosol generating product 200.

[0113] In this embodiment, the annular flange 216 and the outer shell 1 cooperate to form a first flow channel section 41, and the annular support wall 218, the annular sidewall 214, and the annular flange 216 cooperate to form a second flow channel section 42. That is, in this embodiment, the second flow channel section 42 is formed at the interval between the annular sidewall 214 and the annular support wall 218 of the inner shell 21. An air inlet 217 is provided on the annular flange 216, such as... Figure 19 As shown, the annular flange 216 is provided with two air inlets 217, which are rectangular holes, and the two air inlets 217 are symmetrically arranged about the axis of the aerosol generating device 100.

[0114] The outer surface of the aerosol generating article 200 is in contact with the inner surface of the annular support wall 218. The airflow enters the second flow channel section 42 from the first flow channel section 41 through the air inlet 217. That is, the first flow channel section 41 and the second flow channel section 42 are connected through the air inlet 217. Since the air inlet 217 is small in size, a constriction structure is formed at the connection between the first flow channel section 41 and the second flow channel section 42. The constriction structure is the air inlet 217. Even if the aerosol generated by heating and baking the aerosol generating article 200 overflows from the aerosol generating article 200, it will be trapped in the second flow channel section 42 between the annular support wall 218 and the annular side wall 214. The aerosol is not easily diffused from the second flow channel section 42. By directing the aerosol into the first flow channel section 41, the amount of aerosol in the first flow channel section 41 can be effectively reduced, thus lowering the shell temperature at the corresponding location of the first flow channel section 41. In addition, compared to aerosol overflowing into the entire airflow channel, in this embodiment, the aerosol is trapped in the smaller second flow channel section 42. The aerosol diffusion volume in the second flow channel section 42 is smaller, resulting in slower aerosol cooling and reduced aerosol condensation. At the same time, the aerosol concentrated in the second flow channel section 42 has a higher temperature, which can better preheat the outside atmosphere when it mixes with the outside atmosphere during the user's suction process, effectively reducing energy consumption. This effectively solves the problem in the prior art of aerosol overflowing into the airflow channel, causing condensate accumulation and increased shell temperature of the aerosol generating device.

[0115] It is understood that in other embodiments, the annular sidewall 214, the annular flange 216 and the annular support wall 218 can also be set to any other shape, such as a hollow prism, corresponding to the shape of the outer shell 1. The air inlet 217 can also be set to any other shape, such as a square, a circle, or an ellipse. The number of air inlets 217 can be set to any number, such as one, three, or four. Multiple air inlets 217 can be evenly distributed along the circumference of the annular flange 216 or can be distributed arbitrarily.

[0116] Unlike existing technologies, this application discloses an aerosol generating device 100 and an aerosol generating system 300. The aerosol generating device 100 includes a housing 1, an inner housing 21, and a heating element 2. The housing 1 has a first port 12, and the inner housing 21 is disposed inside the housing 1. The inner housing 21 has a receiving cavity 211, and the receiving cavity 211 has a second port 213 corresponding to the first port 12. The first port 12 and the second port 213 are used for inserting the aerosol generating article 200 into the receiving cavity 21. 1. Inside the housing 1, the heating component 2 is disposed within the housing 1, including a mounting base 23 and a heating element 22. The mounting base 23 is disposed at the bottom of the inner housing 21, and the heating element 22 is disposed on the mounting base 23 for heating the aerosol generating product 200. A first flow channel section 41 and a second flow channel section 42 are formed between the first port 12 and the mounting base 23. A constriction structure is formed at the connection between the first flow channel section 41 and the second flow channel section 42, which can trap the aerosol that overflows after heating but is not promptly drawn out into the second flow channel section 42. With the above settings, aerosols are trapped in the second flow channel section 42, making it difficult for them to enter the first flow channel section 41. This reduces the amount of aerosols in the first flow channel section 41 and lowers the shell temperature at the corresponding location. Because the aerosol diffusion volume in the second flow channel section 42 is smaller, the aerosol cools down more slowly, reducing the amount of aerosol condensation and the latent heat of vaporization released during condensation. Consequently, the latent heat of vaporization absorbed by the shell 1 is reduced, lowering the temperature of the shell 1. At the same time, the aerosols concentrated in the second flow channel section 42 have a higher temperature, which can better preheat the outside atmosphere when mixed with it during user suction, effectively reducing energy consumption.

[0117] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An aerosol generating device, characterized by, The utility model relates to an aerosol generating article heating device, comprising: a housing having a first port; an inner housing arranged in the housing; the inner housing has a receiving cavity; the first port is used for inserting an aerosol generating article into the receiving cavity; a heating assembly arranged in the housing; the heating assembly comprises a mounting seat and a heating element, the mounting seat is arranged at the bottom of the inner housing, and the heating element is arranged on the mounting seat and used for heating the aerosol generating article; wherein the first port and the mounting seat form a first flow channel section and a second flow channel section, the first flow channel section is located on one side of the second flow channel section close to the first port, and the connection part of the first flow channel section and the second flow channel section forms a necked structure for trapping aerosol overflowing into the airflow channel due to untimely suction in the second flow channel section.

2. An aerosol generation device according to claim 1, wherein, The inner side surface of the inner housing cooperates with the outer side surface of the aerosol generating article to form an airflow channel; at least part of the inner side surface of the inner housing protrudes to the side of the receiving cavity to form a protruding part, so as to divide the airflow channel into the first flow channel section and the second flow channel section which are in communication with each other; the external atmosphere communicates with the aerosol generating article through the first flow channel section and the second flow channel section in turn.

3. An aerosol generation device according to claim 2, wherein, The inner housing comprises an annular side wall, at least part of the annular side wall is bent to the side of the receiving cavity to form the protruding part.

4. An aerosol generation device according to claim 3, wherein, Only the middle part of the annular side wall is bent to the side of the receiving cavity to form the protruding part, and the protruding part is arranged at intervals with the first end and the second end of the annular side wall.

5. An aerosol generation device according to claim 3, wherein, The annular side wall is bent to the side of the receiving cavity to form the protruding part; the equivalent diameter of the annular side wall gradually decreases and then gradually increases along the direction from the first end to the second end of the annular side wall; and the protruding part is arranged in axial symmetry about the middle part of the annular side wall.

6. An aerosol generation device according to claim 5, wherein, The protruding part transitions in a curve along the direction from the first end to the second end of the annular side wall; or The protruding part transitions in a straight line along the direction from the first end to the second end of the annular side wall; or The protruding part transitions in a step along the direction from the first end to the second end of the annular side wall.

7. An aerosol generation device according to any of claims 3 to 6, wherein, The housing and the annular side wall are arranged at intervals at the position of the protruding part to form a cooling cavity, and the cooling cavity has still air for cooling.

8. An aerosol generation device according to claim 2, wherein, The inner housing comprises an annular side wall and a convex ring located on the inner surface of the annular side wall, and the convex ring forms the protruding part.

9. An aerosol generation device according to claim 8, wherein, The convex ring is located at the middle part of the annular side wall and arranged at intervals with the first end and the second end of the annular side wall; or The convex ring is connected to the inner surfaces of the first end and the second end of the annular side wall respectively at the two ends in the axial direction.

10. An aerosol generation device according to claim 8, wherein, The convex ring is a solid structure; or The convex ring has a cavity inside or cooperates with the inner surface of the annular side wall to form a cavity.

11. An aerosol generation device according to claim 10, wherein, The convex ring is attached to the inner surface of the annular side wall at the two ends in the axial direction, and the middle part protrudes to the side away from the inner surface of the annular side wall to form a cavity.

12. An aerosol generation device according to claim 10, wherein, The cavity is a vacuum cavity.

13. An aerosol generation device according to claim 8, wherein, The surface of the convex ring transitions in a curve along the direction from the first end to the second end of the annular side wall; or a surface of the convex ring is linearly transitioned along a direction from the first end to the second end of the annular sidewall, or a surface of the convex ring is stepped transitioned along a direction from the first end to the second end of the annular sidewall.

14. An aerosol generation device according to claim 8, wherein, the convex ring is integrally formed with the annular sidewall; or the convex ring is fixedly connected to an inner surface of the annular sidewall.

15. An aerosol generation device according to claim 1, wherein, the inner shell comprises an annular sidewall and an annular flange connected to a first end of the annular sidewall; the annular flange is spaced apart from the first port of the outer shell, and the annular flange and the outer shell are used to cooperate with the aerosol generating article to form the first flow passage section; the annular flange and the annular sidewall are used to cooperate with the aerosol generating article to form the second flow passage section; the annular flange has an air inlet hole that communicates the first flow passage section and the second flow passage section.

16. An aerosol generation device according to claim 15, wherein, the inner shell further comprises an annular support wall connected to the annular flange, the annular support wall is arranged in the annular sidewall and is spaced apart from the annular sidewall; the annular support wall forms the receiving cavity.

17. An aerosol generation device according to claim 16, wherein, the annular support wall is connected to a side of the annular flange away from the annular sidewall; the annular sidewall and the annular support wall are both hollow cylinders and are coaxially arranged.

18. An aerosol generation device according to claim 16, wherein, a chamfer is arranged at a position where the annular support wall is connected to the annular flange.

19. An aerosol generation device according to claim 1, wherein, The aerosol generating device further comprises a power supply assembly arranged in the outer shell and electrically connected to the heating element, for providing energy to the heating element.

20. An aerosol generating system comprising: including: an aerosol generating device, the aerosol generating device comprising the aerosol generating device according to any one of claims 1-19; an aerosol generating article.

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