Heating assembly and aerosol-generating device

Abstract

The application relates to the technical field of aerosol generation, in particular to a heating assembly and an aerosol generating device. The heating assembly comprises a first heat conductor, a second heat conductor and a heating body. The heating body is arranged on at least two of the side wall, the bottom wall and the second heat conductor. The heating body is used for generating heat and conducting the heat to the first heat conductor and the second heat conductor. The inner surface of the side wall is provided with a plurality of protruding portions. An air inlet channel is formed between two adjacent protruding portions. The air inlet channel is communicated with the external environment through an opening. Since the heating body is arranged on at least two of the side wall, the bottom wall and the second heat conductor, the heating area can be further increased, which helps to improve the generation speed of the aerosol. The contact between the first heat conductor, the second heat conductor and the aerosol generating article can improve the heat transfer efficiency and the heat utilization rate. The air inlet channel is formed by the protruding portions, so that the heat conduction, heat radiation and hot air flow can synergistically act on the heating body to solve the problem of uneven heating.

Description

Technical Field

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

[0002] An aerosol generating device is an appliance that uses the principle of heating without combustion to produce aerosols for user use. Aerosol generating devices generally include a heating element, which heats up after being powered on to heat the aerosol generating product. However, current aerosol generating devices use a relatively simple heat transfer method, reducing heat utilization, prolonging preheating time, and slowing down the aerosol response speed, thus affecting the user's suction experience. Furthermore, this single heat transfer method can lead to uneven heating of the aerosol generating product, resulting in localized overheating and scorching, as well as localized underheating and insufficient aerosol response. Utility Model Content

[0003] This application provides a heating component and an aerosol generating device, which can effectively solve the problems of low heat utilization and uneven heating.

[0004] This application provides a heating assembly, including a first heat conductor, a second heat conductor, and a heating element. The first heat conductor includes a side wall and a bottom wall, which form a heating cavity with one end open and the other end closed. The heating cavity is used to accommodate an aerosol generating product, and the opening is used for inserting the aerosol generating product into the heating cavity. One end of the second heat conductor is disposed on the bottom wall, and the other end extends into the heating cavity. The second heat conductor is used to insert into the interior of the aerosol generating product. The heating element is disposed on at least two of the side wall, the bottom wall, and the second heat conductor. The heating element generates heat and conducts it to the first heat conductor and the second heat conductor to heat the aerosol generating product to form an aerosol. The inner surface of the side wall has multiple protrusions. The protrusions abut against the outer wall of the aerosol generating product, and an air inlet channel is formed between two adjacent protrusions. The air inlet channel communicates with the external environment through the opening.

[0005] In some embodiments, the heating element is disposed on the side wall and the bottom wall; or, the heating element is disposed on the side wall and the second heat conductor.

[0006] In some embodiments, at least one heating zone is provided on the side wall, the bottom wall, and the second heat conductor, and each heating zone is provided with a corresponding heating element.

[0007] In some embodiments, the air intake channel extends in the same direction as the heating chamber.

[0008] In some embodiments, the protrusions are evenly distributed on the inner wall of the heating cavity; the protrusions are strip-shaped protrusions extending along the axial direction of the heating cavity, and the strip-shaped protrusions are arranged with the same length as the heating cavity.

[0009] In some embodiments, the sidewall and / or the bottom wall are provided with support protrusions for supporting the end of the aerosol generating article to form an airflow cavity between the end of the aerosol generating article and the bottom wall, the airflow cavity being in communication with the air inlet channel.

[0010] In some embodiments, a plurality of support protrusions are provided, and the plurality of support protrusions are arranged at circumferential intervals along the heating cavity. An airflow channel is formed between two adjacent support protrusions, and the air inlet channel is connected to the airflow cavity through the airflow channel.

[0011] In some embodiments, the heating element includes at least one of a heating circuit, a heating film, or a heating wire.

[0012] In some embodiments, the second heat conductor includes a rod-shaped portion and a guide portion connected to each other, wherein the cross-sectional area of ​​the guide portion gradually decreases in the direction away from the rod-shaped portion along the axial direction of the second heat conductor.

[0013] This application provides an aerosol generating apparatus, including a power supply component and a heating component as described above, wherein the power supply component is used to supply power to the heating component.

[0014] According to the heating component and aerosol generating device in the above embodiments, the heating component includes a first heat conductor, a second heat conductor, and a heating element. Since both the first and second heat conductors can contact the aerosol generating product and heat it using circumferential and central heating via heat conduction and radiation, the contact area is increased, thereby improving heat transfer efficiency and heat utilization. Because an air inlet channel is formed between the side and sidewall of the aerosol generating product, it can be heated using hot airflow, resulting in uniform heating. This, combined with the heat conduction and radiation heating methods, solves the problems of localized overheating and scorching or localized underheating and insufficient aerosol response. By placing heating elements on at least two of the sidewall, bottom wall, and second heat conductor, the heating area can be further increased, effectively raising the heating temperature of the aerosol generating product, enabling it to respond quickly and generate aerosols, thus improving the user experience. Attached Figure Description

[0015] Figure 1 This is a structural cross-sectional view of an aerosol generating device in one embodiment;

[0016] Figure 2 This is a schematic diagram of the structure of an aerosol-generated product in one embodiment;

[0017] Figure 3 This is a schematic diagram of the heating component in one embodiment;

[0018] Figure 4 This is a cross-sectional view of the heating assembly in one embodiment;

[0019] Figure 5 This is a schematic diagram of the heating component in the first embodiment;

[0020] Figure 6 This is a cross-sectional view of the heating component in the second embodiment;

[0021] Figure 7 This is a cross-sectional view of the heating component in the third embodiment;

[0022] Figure 8 This is a schematic diagram of the structure of the heating component and the support component in one embodiment;

[0023] Figure 9 This is a schematic diagram of the structure of the second heat conductor in one embodiment.

[0024] Among them: 1. Generating device;

[0025] 10. Housing assembly;

[0026] 20. Power supply components; 21. Battery; 22. Circuit board;

[0027] 30. Heating assembly; 31. First heat conductor; 311. Side wall; 3111. Protrusion; 3112. Air inlet channel; 312. Bottom wall; 313. Heating cavity; 3131. Opening; 314. Supporting protrusion; 315. Airflow cavity; 316. Airflow channel; 317. Flange; 32. Second heat conductor; 321. Rod-shaped part; 322. Guide part; 33. Heating element;

[0028] 40. Support assembly; 41. Support housing; 411. Accommodation opening; 412. Suspension protrusion; 42. Base; 43. Pressure cap;

[0029] A. Aerosol generating product; A1. Matrix section; A2. Airflow section; A3. Cooling section; A4. Filtration section; A5. Sealing section. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0031] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0032] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0033] This application provides an aerosol generating device 1 (hereinafter referred to as "generating device 1"), which uses the principle of heating without combustion to heat the aerosol generating product A to generate aerosol for user use.

[0034] It should be noted that the term "aerosol" in this context refers to a dispersion of solid or liquid particles in a gas. The term "aerosol" as used herein can generally refer to substances that have been vaporized, atomized, sprayed, or jetted, or otherwise transformed from a solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0035] Before introducing the specific structure of generating device 1, let's give a brief introduction to aerosol-generated product A.

[0036] Aerosol-generating article A refers to any suitable compound or mixture of compounds that facilitates the formation of aerosols (e.g., stable aerosols that are substantially resistant to thermal degradation at the system's operating temperature) during use. Suitable aerosol-generating articles A are well known in the art and include, but are not limited to: polyols such as triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols such as mono-, di-, or triacetic acid esters of glycerol; and aliphatic esters of mono-, di-, or polycarboxylic acids such as dimethyl dodecanoate and dimethyl tetradecanoate.

[0037] Aerosol-generating article A may include nicotine. Aerosol-generating article A may include water. Aerosol-generating article A may include glycerol (also known as glycerol) having a higher boiling point than nicotine. Aerosol-generating article A may include propylene glycol. Aerosol-generating article A may include plant-based materials. Aerosol-generating article A may include homogeneous plant substrate. The homogeneous plant substrate may contain volatile compounds. These compounds may be released from aerosol-generating article A upon heating. Aerosol-generating article A may be formed by winding and overmolding a soft paper material or a rigid material, and aerosol-generating article A has a generally cylindrical structure.

[0038] Please see Figure 1 The generating device 1 includes a housing assembly 10, a power supply assembly 20, and a heating assembly 30. The aerosol-generated product A is inserted into the heating assembly 30. The housing assembly 10 can be understood as an assembly of multiple components. A cavity is formed within the housing assembly 10 to accommodate the power supply assembly 20 and the heating assembly 30. A fixing structure is provided within the cavity of the housing assembly 10 for fixing the power supply assembly 20 and the heating assembly 30. The housing assembly 10 facilitates the integrated transportation and carrying of the generating device 1. The power supply assembly 20 and the heating assembly 30 are electrically connected. The power supply assembly 20 includes a battery 21 and a circuit board 22 that are electrically connected. The power supply assembly 20 provides the power required for the heating assembly 30 to operate and can also control the adjustment of the operating power (or operating temperature) of the heating assembly 30. The power supply assembly 20 also includes control buttons (not shown in the figure), which can trigger the generating device 1 to start, stop, or adjust its operating power. The heating assembly 30 is used to electrically heat the aerosol-generated product A to form an aerosol.

[0039] Since the power supply component 20 and the housing component 10 have been disclosed in the prior art and are not the core points of the improvement in this application, the structure of the heating component 30 will be described in detail below.

[0040] Please see Figure 2The aerosol generating product A includes a matrix section A1, an airflow section A2, a cooling section A3, and a filtration section A4. These sections are arranged sequentially along the axial direction of the aerosol generating product A. The matrix section A1 generates aerosols upon heating, including the aforementioned aerosol-generating compounds or mixtures of compounds. The airflow section A2 has multiple channels extending axially along the aerosol generating product A to guide the aerosols from the matrix section A1 to the cooling section A3 and then into the filtration section A4. The cooling section A3 lowers the temperature of the aerosols to prevent burns to the user. The filtration section A4 performs the suction action and filters the aerosols to improve their purity. A forming paper is externally attached to the aerosol generating product A, winding the matrix section A1, airflow section A2, cooling section A3, and filtration section A4 into a single structure.

[0041] In some embodiments, the aerosol generating article A further includes a blocking section A5, which is disposed at the end of the matrix section A1 away from the airflow section A2. The blocking section A5 is used to prevent solids, liquids or gases from passing through, so as to avoid leakage of aerosols, aerosol condensate or substances in the matrix section A1, thereby reducing the need for cleaning the generating device 1.

[0042] Please see Figures 3 to 9 The heating assembly 30 includes a first heat conductor 31, a second heat conductor 32, and a heating element 33. The first heat conductor 31 includes a side wall 311 and a bottom wall 312, which form a heating cavity 313 with one end open 3131 and the other end closed. The heating cavity 313 is used to accommodate the aerosol generating product A, and the opening 3131 is used for inserting the aerosol generating product A into the heating cavity 313. One end of the second heat conductor 32 is disposed on the bottom wall 312, and the other end extends into the heating cavity 313. The second heat conductor 32 is used to insert the aerosol generating product A. The interior of the aerosol generating product A is provided with a heating element 33 disposed on at least two of the side wall 311, the bottom wall 312, and the second heat conductor 32. The heating element 33 is used to generate heat and conduct it to the first heat conductor 31 and the second heat conductor 32 to heat the aerosol generating product A to form an aerosol. The inner surface of the side wall 311 is provided with a plurality of protrusions 3111. The protrusions 3111 are used to abut against the outer wall of the aerosol generating product A. An air inlet channel 3112 is formed between two adjacent protrusions 3111. The air inlet channel 3112 is connected to the external environment through an opening 3131.

[0043] Specifically, the aerosol generating product A is inserted into the heating cavity 313 formed by the side wall 311 and bottom wall 312 of the first heat conductor 31. The side of the aerosol generating product A abuts against at least a portion of the side wall 311, that is, against the protrusion 3111 on the side wall 311. The second heat conductor 32 is inserted into the interior of the aerosol generating product A, so that the heating component 30 contacts the aerosol generating product A through the protrusion 3111 and the second heat conductor 32. The aerosol generating product A is heated by heat conduction and heat radiation through circumferential heating and central heating, which increases the contact area and thus improves the heat transfer efficiency and heat utilization rate. Because an air inlet channel 3112 is formed between the side of the aerosol generating product A and the side wall 311, air from the external environment is heated into a hot airflow when it flows through the air inlet channel 3112 through the opening 3131. This hot airflow heats the aerosol generating product A, ensuring uniform heating. Combined with heating methods such as heat conduction and heat radiation, this solves the problems of localized overheating and scorching or localized underheating and insufficient aerosol response. Furthermore, by providing heating elements 33 on at least two of the side wall 311, bottom wall 312, and the second heat conductor 32, the heating area can be further increased, effectively raising the heating temperature of the aerosol generating product A and significantly shortening the preheating time. This allows for rapid response and aerosol generation, meaning that a larger amount of aerosol can be obtained in the first few pumps, thus improving the user experience.

[0044] Furthermore, the protrusion 3111 can reduce the contact area with the first heat conductor 31, lower the temperature of the forming paper on the outside of the aerosol-generated product A, and thus reduce the risk of the aerosol-generated product A being burnt.

[0045] In some embodiments, the first heat conductor 31 can be a hollow structure with one end open 3131 and the other end closed. The shape of the hollow structure and the internal heating cavity 313 can be cylindrical (including circular, near-circular), rectangular, polygonal, or other irregular shapes, without much limitation. For example, aerosol generating article A is generally made into a cylindrical shape to improve uniformity; therefore, the heating cavity 313 is constructed in a cylindrical shape to match its shape.

[0046] The heating element 33 is disposed on at least two of the side wall 311, the bottom wall 312, and the second heat conductor 32. This can be understood as the heating element 33 being disposed on the side wall 311 and the bottom wall 312, or on the side wall 311 and the second heat conductor 32, or on the side wall 311, the bottom wall 312, and the second heat conductor 32.

[0047] In embodiments where the heating element 33 is disposed on the side wall 311 and the bottom wall 312, the heating element 33 can be disposed on one of the outer or inner surfaces of the side wall 311, or on both the inner and outer surfaces of the side wall 311. Similarly, the bottom wall 312 has one side facing the heating cavity 313, and conversely, the bottom wall 312 also has another side facing away from the heating cavity 313. The heating element 33 can be disposed on one of these two sides, or on both sides. When the heating element 33 is disposed on the inner surface of the side wall 311 and the side of the bottom wall 312 facing the heating cavity 313, the side wall 311 and the bottom wall 312 may be in direct contact with the aerosol-generating product A. The temperature at the point of direct contact is high, which can accelerate the response speed of the aerosol-generating product A. Of course, if the temperature is too high, it may also cause the forming paper on the outside of the aerosol-generating product A to burn and produce impurities, affecting the taste of the aerosol-generating product A. The appropriate placement position can be selected according to the response temperature of the aerosol-generating product A (the temperature at which the aerosol is generated) and the temperature generated by the heating element 33. For example, please refer to Figure 5 When both the first heat conductor 31 and the second heat conductor 32 are in contact with the aerosol-generating product A, the heat utilization rate is high, and the temperature at the aerosol-generating product A can easily become too high. Placing the heating element 33 on the outer surface of the sidewall 311 and the side of the bottom wall 312 facing away from the heating cavity 313 can extend the heat transfer path, helping to ensure that the temperature at the aerosol-generating product A meets its response temperature. In this embodiment, the heating elements 33 on the sidewall 311 and the bottom wall 312 are insulated from each other, and the inner surface of the sidewall 311 and the side of the bottom wall 312 facing the heating cavity 313 are also insulated.

[0048] In embodiments where the heating element 33 is disposed on the sidewall 311 and the second heat conductor 32, the heating element 33 can be disposed on one of the outer or inner surfaces of the sidewall 311, or on both the inner and outer surfaces of the sidewall 311. The second heat conductor 32 also has an inner and outer surface, and the heating element 33 can be disposed on one of the outer or inner surfaces of the second heat conductor 32, or on both the inner and outer surfaces of the second heat conductor 32. Similarly, the placement of the heating element 33 should meet the response temperature requirements of the aerosol-generating product A, and should not be too high to generate impurities or cause burning. For an example, please refer to [link to example]. Figure 6When both the first heat conductor 31 and the second heat conductor 32 are in contact with the aerosol-generating product A, the heat utilization rate is high, and the temperature at the aerosol-generating product A can easily become too high. Placing the heating element 33 on the outer surface of the sidewall 311 and the inner surface of the second heat conductor 32 can extend the heat transfer path, helping to ensure that the temperature at the aerosol-generating product A meets its response temperature. In this embodiment, the heating elements 33 on the sidewall 311 and the second heat conductor 32 are insulated from each other, and the inner surface of the sidewall 311, the side of the bottom wall 312 facing the heating cavity 313, and the outer surface of the second heat conductor 32 are all insulated.

[0049] In the embodiment where the heating element 33 is disposed on the side wall 311, the bottom wall 312, and the second heat conductor 32, please refer to Figure 7 The heating element 33 is disposed on the outer surface of the side wall 311, the side of the bottom wall 312 facing away from the heating cavity 313, and the inner surface of the second heat conductor 32. In this embodiment, the heating elements 33 are insulated from each other, and the inner surface of the side wall 311, the side of the bottom wall 312 facing the heating cavity 313, and the outer surface of the second heat conductor 32 are all insulated.

[0050] To further expand the applicability of the production device and enhance its market competitiveness, the generating device 1 can be adjusted to multiple operating power levels to meet the needs of different users for small aerosol volumes (low aerosol content), medium aerosol volumes (high aerosol content), and explosive aerosol volumes (maximum aerosol content). In some embodiments, at least one heating zone is provided on the side wall 311, bottom wall 312, and second heat conductor 32. Each heating zone is equipped with a corresponding heating element 33, and each heating element 33 is individually connected to the power supply component 20. Users can selectively activate the number of heating elements 33 at different locations to change the temperature at their corresponding locations, thereby changing the amount and rate of aerosol generation.

[0051] In some embodiments, the extending direction of the air intake channel 3112 is the same as the extending direction of the heating chamber 313, allowing air to fully exchange heat with the sidewall 311 along the air intake channel 3112 to increase the temperature of the hot airflow and thus increase the aerosol generation rate. In a specific embodiment, the axis of the air intake channel 3112 is a straight line in the extending direction of the heating chamber 313, that is, the air intake channel 3112 is linear, which can reduce the resistance to airflow and further reduce the suction resistance.

[0052] Of course, in other embodiments, the air intake channel 3112 may also be a curved shape extending along the extension direction of the heating cavity 313. In this embodiment, the curved structure can increase the contact area between the air and the side wall 311, thereby increasing the temperature of the hot airflow.

[0053] In some embodiments, the protrusions 3111 are evenly distributed on the inner sidewall 311 of the heating chamber 313, forming evenly distributed air inlet channels 3112 on the circumference of the heating chamber 313. This allows air to enter evenly along the circumference of the heating chamber 313, ensuring that the air absorbs heat evenly after flowing through the heating chamber 313. Consequently, the uniformly heated airflow enters the aerosol-generating product A, ensuring that the aerosol-generating product A is heated uniformly. The evenly distributed protrusions 3111 on the sidewall 311 also enable the aerosol-generating product A to be aligned (coaxial with the heating chamber 313) during installation, further effectively ensuring uniform heating of the aerosol-generating product A.

[0054] In some embodiments, the protrusion 3111 is a strip-shaped protrusion extending axially along the heating cavity 313. The extension length of the strip-shaped protrusion may be equal to or less than the extension length of the heating cavity 313. The strip-shaped protrusion is arranged so that the air intake channel 3112 extends along the axial direction of the heating cavity 313. In some specific embodiments, the strip-shaped protrusion 3111 is arranged with the same length as the heating cavity 313, so that the air can fully contact the sidewall 311 to increase the temperature of the hot airflow.

[0055] In some embodiments, the protrusion 3111 gradually decreases in size along the direction close to the center of the heating chamber 313, which can further reduce the contact area with the aerosol-generating article A. Of course, this structural design allows the protrusion 3111 to be partially inserted into the outer wall of the aerosol-generating article A, which can improve the stability of clamping and supporting the aerosol-generating article A.

[0056] Of course, in other specific embodiments, the protrusions 3111 can also be dot-shaped or block-shaped protrusions provided on the sidewall 311. These dot-shaped or block-shaped protrusions can be cylindrical, conical, or rectangular. Multiple protrusions 3111 are evenly arranged along the axial direction and circumferential direction of the heating chamber 313, so that the air inlet channel 3112 is evenly arranged, thereby allowing air to enter evenly along the air inlet channel 3112 after the aerosol generating product A is inserted.

[0057] Please continue reading. Figure 6 In some embodiments, support protrusions 314 are provided on the sidewalls 311 and / or the bottom wall 312. The support protrusions 314 are used to support the end of the aerosol generating article A, so as to form an airflow cavity 315 between the end of the aerosol generating article A and the bottom wall 312. The airflow cavity 315 is connected to the air inlet channel 3112. Hot airflow flows into the airflow cavity 315 from the air inlet channel 3112 and then into the aerosol generating article A. The arrangement of the airflow cavity 315 reduces the contact area between the end of the aerosol generating article A and the bottom wall 312 on the one hand, and on the other hand, it can serve as a temporary storage space for hot airflow to ensure the continuity of aerosol generation by the aerosol generating article A. The airflow diagram is shown below. Figure 8As shown by the arrow in the image.

[0058] In some embodiments, multiple support protrusions 314 are provided, and the multiple support protrusions 314 are arranged circumferentially along the heating cavity 313. An airflow channel 316 is formed between two adjacent support protrusions 314. The air inlet channel 3112 is connected to the airflow cavity 315 through the airflow channel 316, so that the hot airflow enters the airflow cavity 315 through the airflow channel 316.

[0059] When the extension length of the protrusion 3111 (the length in the extension direction of the heating cavity 313) is less than the length of the heating cavity 313 (the length of the sidewall 311), the supporting protrusion 314 is disposed on the sidewall 311 and extends to the side of the bottom wall 312 facing the heating cavity 313. The radial extension dimension of the supporting protrusion 314 (radial extension dimension of the heating cavity 313) is greater than that of the protrusion 3111, so that a step is formed between the supporting protrusion 314 and the protrusion 3111. The protrusion 3111 abuts against the side of the aerosol generating article A, and the supporting protrusion 314 abuts against the end of the aerosol generating article A. In this embodiment, the number of protrusions 3111 and supporting protrusions 314 can be the same, and their positions are arranged in a one-to-one correspondence, so that the air inlet channel 3112 and the airflow channel 316 are connected in a one-to-one correspondence. The number of supporting protrusions 314 can also be less than the number of protrusions 3111, so that multiple air inlet channels 3112 correspond to one airflow channel 316. After the hot airflow undergoes a first diffusion at the airflow channel 316, it undergoes a second diffusion at the airflow cavity 315 and then flows into the aerosol-generated product A. By reducing pressure in stages, pressure changes can be avoided to ensure the stability of airflow.

[0060] When the protrusion 3111 and the heating chamber 313 are of equal length, a supporting protrusion 314 is provided on the bottom wall 312. This supporting protrusion 314 can abut against the side of the protrusion 3111, be integrally formed, or be spaced apart from the protrusion 3111. The supporting protrusion 314 extends axially along the heating chamber 313 and abuts against the end of the aerosol-generating product A to limit and fix the aerosol-generating product A. The supporting protrusion 314 can selectively correspond to the position of at least one protrusion 3111, thereby connecting the air intake channel 3112 and the airflow channel 316. The supporting protrusion 314 can also be arbitrarily arranged on the bottom wall 312 and evenly distributed around the circumference of the bottom wall 312. The supporting protrusion 314 being spaced apart from the protrusion 3111 can also achieve communication between the air intake channel 3112 and the airflow channel 316.

[0061] In some embodiments, the support protrusion 314 may be a dot-shaped or block-shaped protrusion provided on the side wall 311 or the bottom wall 312. The cross-section of the dot-shaped or block-shaped protrusion may be cylindrical, conical or rectangular. The structural configuration of the support protrusion 314 is based on the ability to support the aerosol-generated product A and form an airflow channel 316, and no further restrictions are imposed here.

[0062] In some embodiments, the heating element 33 includes at least one of a heating circuit, a heating film, or a heating wire. The heating circuit is a conductive line formed on an insulating substrate by processes such as printing, etching, or deposition. It generates heat when energized. The materials used to fabricate the heating circuit include metallic materials (such as copper, silver, or nickel-chromium alloys) and non-metallic materials (such as graphene). The heating film is an ultra-thin sheet-like heating element 33 made from a polymer or metal foil substrate through a composite process, exhibiting uniform heating characteristics. The materials used to fabricate the heating film also include metallic materials such as nickel-chromium alloys or carbon-based non-metallic materials. The heating wire is a linear structure made of metal or alloy wire. The heating wire can be spirally wound on the sidewall 311 or the second heat conductor 32, or extended in a zigzag pattern on the bottom wall 312 to increase the heating area. The heating wire can be embedded or fixed by adhesive bonding.

[0063] In some embodiments, the heating element 33 includes a conductive portion for conductive connection with the power supply component 20. The conductive portion includes conductive leads, conductive posts, or conductive springs, etc.

[0064] In some embodiments, the generating apparatus 1 further includes a support component 40. The housing component 10 has a heating space and an electrical installation space inside. The support component 40 is disposed in the heating space, the power supply component 20 is disposed in the electrical installation space, and the heating component 30 is disposed in the support component 40. The support component 40 is used to support and fix the heating component 30, and the conductive part of the heating component 30 can pass through the support component 40 and be electrically connected to the power supply component 20.

[0065] Please see Figure 8 The support assembly 40 has a receiving opening 411, which connects the external environment with the opening 3131 of the heating chamber 313. The aerosol-generated product A is inserted into the heating chamber 313 sequentially through the receiving opening 411 and the opening 3131 of the heating chamber 313. The support assembly 40 includes a support housing 41, a base 42, and a pressure cap 43. The receiving opening 411 is formed on the support housing 41, the pressure cap 43 is inserted into the support housing 41 through the receiving opening 411, and the base 42 is located on the side of the support housing 41 away from the pressure cap 43.

[0066] The support housing 41 has a suspension protrusion 412 inside, which extends from the inner wall of the support housing 41 toward the center. The first heat conductor 31 has a flange 317 on the outer side near the opening 3131. The flange 317 protrudes from the outer wall of the first heat conductor 31 in the direction away from the heating cavity 313 and can overlap the suspension protrusion 412. The pressure cap 43 is disposed on the side of the flange 317 facing the accommodating opening 411, thereby clamping the first heat conductor 31 between the pressure cap 43 and the support housing 41, so that the first heat conductor 31 is suspended in the support housing 41 and coaxially disposed with the support housing 41. The base 42 is spaced apart from the bottom wall 312 of the first heat conductor 31, which can reduce the contact area between the heating component 30 and the support component 40, thereby reducing heat loss and improving the heating efficiency of the heating component 30.

[0067] In order to improve the heating efficiency of the heating component 30 and reduce heat loss, the support shell 41 of the support component 40 has a good thermal insulation effect and is made of a material with low thermal conductivity. At the same time, since the temperature inside the space enclosed by the base 42 and the support shell 41 is high, the base 42 and the support shell 41 are made of high temperature resistant materials, such as the base 42 being made of high temperature resistant PEEK material.

[0068] Please see Figure 9 The second heat conductor 32 includes a rod-shaped portion 321 and a guide portion 322 connected to each other. Along the axial direction of the second heat conductor 32, the cross-sectional area of ​​the guide portion 322 gradually decreases away from the rod-shaped portion 321, so that the second heat conductor 32 can be easily inserted into the aerosol generating product A. The rod-shaped portion 321 is hollow inside, and the heating element 33 can be disposed inside the rod-shaped portion 321.

[0069] In some embodiments, the first heat conductor 31 and the second heat conductor 32 may both be made of a highly thermally conductive material, such as aluminum, aluminum alloy, copper, aluminum nitride, or non-conductive ceramic material. For example, the first heat conductor 31 and the second heat conductor 32 may be made of metallic aluminum, which is insulated from the heating element 33. Metallic aluminum has advantages such as high strength, ease of processing and forming, thinning capability, and good thermal conductivity.

[0070] Since the inner surface of the first heat conductor 31 and the outer surface of the second heat conductor 32 may come into contact with the aerosol-generating product A, an anti-stick coating (not shown in the figure) is provided on them to reduce the adhesion of the aerosol-generating product A to the first heat conductor 31 and the second heat conductor 32. The anti-stick coating is a dense coating structure formed by spraying nanomaterials or ceramic materials.

[0071] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating assembly, characterized in that, include: A first heat conductor, comprising a side wall and a bottom wall, the side wall and the bottom wall forming a heating cavity with one end open and the other end closed, the heating cavity being used to accommodate an aerosol generating product, the opening being used for inserting the aerosol generating product into the heating cavity; The second heat conductor has one end disposed on the bottom wall and the other end extending into the heating cavity; The second heat conductor is used to insert into the interior of the aerosol-generated product; as well as A heating element, wherein the heating element is disposed on at least two of the side wall, the bottom wall and the second heat conductor; The heating element is used to generate heat and conduct it to the first heat conductor and the second heat conductor to heat the aerosol generating product to form an aerosol; The inner surface of the sidewall is provided with a plurality of protrusions; the protrusions are used to abut against the outer wall of the aerosol generating product, and an air intake channel is formed between two adjacent protrusions, the air intake channel being connected to the external environment through the opening.

2. The heating assembly according to claim 1, characterized in that, The heating element is disposed on the side wall and the bottom wall; or, the heating element is disposed on the side wall and the second heat conductor.

3. The heating assembly according to claim 1, characterized in that, At least one heating zone is provided on the side wall, the bottom wall, and the second heat conductor, and each heating zone is provided with a corresponding heating element.

4. The heating assembly according to any one of claims 1-3, characterized in that, The air intake channel extends in the same direction as the heating chamber.

5. The heating assembly according to claim 4, characterized in that, The protrusions are evenly distributed on the inner wall of the heating cavity; the protrusions are strip-shaped protrusions extending along the axial direction of the heating cavity, and the strip-shaped protrusions are of the same length as the heating cavity.

6. The heating assembly according to claim 4, characterized in that, The sidewall and / or the bottom wall are provided with support protrusions, which are used to support the end of the aerosol generating article to form an airflow cavity between the end of the aerosol generating article and the bottom wall, and the airflow cavity is connected to the air inlet channel.

7. The heating assembly according to claim 6, characterized in that, The support protrusions are provided in multiple ways, and the multiple support protrusions are arranged at intervals along the circumference of the heating cavity. An airflow channel is formed between two adjacent support protrusions, and the air inlet channel is connected to the airflow cavity through the airflow channel.

8. The heating assembly according to claim 1, characterized in that, The heating element includes at least one of a heating circuit, a heating film, or a heating wire.

9. The heating assembly according to claim 1, characterized in that, The second heat conductor includes a rod-shaped portion and a guide portion connected to each other, wherein the cross-sectional area of ​​the guide portion gradually decreases in the direction away from the rod-shaped portion along the axial direction of the second heat conductor.

10. An aerosol generating device, characterized in that, It includes a power supply component and a heating component as described in any one of claims 1-9, wherein the power supply component is used to supply power to the heating component.

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