Heating assembly and aerosol generating device

Abstract

The utility model relates to the technical field of aerosol generation, in particular to a heating assembly and an aerosol generation device.The heating assembly comprises an insertion channel, a supporting assembly, a heating pipe and a heating piece, and the insertion channel is provided with an insertion opening; a first lead hole is formed in one end, close to the insertion port, of the side of the supporting assembly; the heating tube is coaxially arranged in the supporting assembly; the heating element comprises a heating section, and a first connecting lead and a second connecting lead which are conductively connected with two ends of the heating section, and the heating section extends in the axial direction of the heating tube; the first connecting lead is arranged close to the insertion opening and penetrates out of the heating assembly through the first lead hole. Due to the arrangement of the first lead hole, the first connecting lead directly penetrates out of the supporting assembly from the first lead hole, the first connecting lead is prevented from being softened or even melted by a high-temperature heating pipe, and the problem that the heating piece fails due to the fact that the first connecting lead makes contact with the heating section to be short-circuited is solved.

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] Aerosol generating devices utilize the thermal effect of heating components to bake aerosol-generating products, enabling them to produce volatile substances such as aerosols without combustion. Currently, existing heating components consist of a heating element and mounting bases at both ends. The heating element is fixed by the mounting bases. This method is suitable for applications with a lower lead wire. However, heating the lead wire in close proximity causes it to soften or even melt under prolonged high temperatures, affecting its performance. Furthermore, the lead wire is prone to short-circuiting when it comes into contact with the spiral heating section as it is guided downwards, leading to heating element failure. Utility Model Content

[0003] This application provides a heating component and an aerosol generating device, which effectively solves the problem of heating element failure caused by lead wire heating, and can also achieve good loading and fixing of heating tube.

[0004] This application provides a heating assembly, including:

[0005] An insertion channel is provided for accommodating an aerosol-generating article, and the insertion channel has an insertion port for inserting the aerosol-generating article into the insertion channel.

[0006] A support assembly, wherein a first lead hole is provided on one side of the support assembly near the insertion port;

[0007] A heating element, coaxially disposed within the support assembly, wherein the heating element and the support assembly are configured to form the insertion channel; and

[0008] The heating element includes a heating section, a first connecting lead, and a second connecting lead. The heating section extends axially along the heating tube, and both ends of the heating section are electrically connected to the first connecting lead and the second connecting lead, respectively. The first connecting lead and the second connecting lead are used for electrical connection with a power supply component. The first connecting lead is located near the insertion port and passes through the first lead hole to the outside of the heating component.

[0009] In some alternative embodiments, the heating segment is spirally wound around the outer surface of the heating tube in the axial direction.

[0010] In some alternative embodiments, a second lead hole is provided on the side of the support component away from the insertion port, and the second connecting lead passes through the second lead hole to the outside of the heating component.

[0011] In some optional embodiments, the support assembly includes a first mounting base, a second mounting base, and a connector, wherein the first mounting base and the second mounting base are respectively disposed at both ends of the connector; the first mounting base abuts against one axial end of the heating tube, and the second mounting base abuts against the other axial end of the heating tube, so as to form the insertion channel between the first mounting base, the heating tube, and the second mounting base.

[0012] In some alternative embodiments, at least a portion of the structure of the second mounting base is inserted inside the connector; one of the first mounting base and the connector is provided with a limiting boss, and the end of the other abuts against the limiting boss.

[0013] In some optional embodiments, the first mounting base includes a mounting body and a snap-fit ​​portion, the snap-fit ​​portion extending radially inward along the first mounting base and abutting against one end of the heating element, the mounting body extending axially along the first mounting base and abutting against the connector; the snap-fit ​​portion is provided with a first fixing boss, the first fixing boss being used to abut against the end of the heating element corresponding to it; and / or, the second mounting base is provided with a second fixing boss on the end face facing the heating element, the second fixing boss being used to abut against the end of the heating element corresponding to it.

[0014] In some optional embodiments, the first mounting base is provided with a first air inlet at one end near the insertion port, the first air inlet communicating with the external environment at the insertion port through the insertion port, and the first air inlet communicating with the insertion channel; and / or, an airflow channel is provided between the support component and the heating tube, the airflow channel communicating with the insertion channel; at least one row of second air inlets is provided on the side of the support component, the second air inlets communicating with the external environment on the side of the heating component and the airflow channel.

[0015] In some alternative embodiments, the first air inlet is provided with at least one, and at least one first air inlet is provided circumferentially spaced along the first mounting base; and / or, each row of second air inlets is provided with at least one, and at least one second air inlet is provided circumferentially spaced along the support assembly.

[0016] In some optional embodiments, the second mounting base is provided with an air outlet, which connects the airflow channel and the insertion channel; the second mounting base is provided with a support protrusion on the side facing the first mounting base, which supports the aerosol generating article and forms an airflow space between the end of the aerosol generating article and the opposite side of the second mounting base, which connects the air outlet and the insertion channel.

[0017] This application also provides an aerosol generating apparatus, including a power supply component and a heating component as described above. The power supply component is electrically connected to the first connecting lead and the second connecting lead, and is used to provide the power required for the heating component to operate.

[0018] According to the heating component and aerosol generating device in this embodiment, since the support component has a first lead hole on its side, the first connecting lead on the heating element does not need to pass through the heating tube. It can directly pass through the first lead hole to the outside of the support component and make a conductive connection with the power supply component. This avoids the first connecting lead being softened or even melted by the high-temperature heating tube, and also solves the problem of short circuit between the first connecting lead and the heating section causing the heating element to fail. This ensures the normal operation of the generating device and allows users to obtain a better suction experience. The support component provides a mounting base for the heating tube, which helps to fix the heating tube in place. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the generating device in use in one embodiment;

[0020] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0021] Figure 3 This is a cross-sectional view of the heating assembly in one embodiment;

[0022] Figure 4 This is a schematic diagram of the structure of the heating tube and heating element assembly in one embodiment;

[0023] Figure 5 This is an exploded view of the supporting component structure in one embodiment;

[0024] Figure 6 This is a cross-sectional view of the structure of the first mounting base in one embodiment;

[0025] Figure 7 This is a cross-sectional view of the structure of the second mounting base in one embodiment;

[0026] Figure 8 This is a schematic diagram of airflow in a heating assembly in one embodiment.

[0027] The components are as follows: 1. Outer shell; 2. Power supply assembly; 3. Heating assembly; 31. Insertion channel; 311. Insertion port; 32. Support assembly; 321. First mounting base; 3211. Mounting body; 3212. Snap-fit ​​part; 3213. First fixing boss; 3214. First lead wire hole; 3215. First air inlet; 3216. Second air inlet; 322. Second mounting base; 3221. Second fixing boss; 3222. Air outlet; 3223. Support protrusion; 3224. Air inlet; 323. Connector; 3231. Limiting boss; 3232. Second lead wire hole; 324. Clamping component; 3241. Clamping protrusion; 33. Heating tube; 34. Heating element; 341. Heating section; 342. First connecting lead wire; 343. Second connecting lead wire; 35. Airflow channel; 36. Airflow space.

[0028] A. Aerosol-generated products. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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).

[0032] Please see Figures 1 to 8An aerosol generating device (hereinafter referred to as "generating device") is an apparatus used to heat an aerosol generating product A to atomize it into an aerosol. The generating device includes a housing 1, a power supply component 2, and a heating component 3. The housing 1 can be understood as an assembly of multiple structural components, providing installation space for the power supply component 2 and the heating component 3. The power supply component 2 provides the necessary power to the heating component 3. Correspondingly, the heating component 3, after being connected to the power supply component 2 and energized, generates heat to heat the aerosol generating product A.

[0033] 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.

[0034] Aerosol-generating article A is any suitable compound or mixture of compounds that facilitates aerosol formation during use. Aerosol-generating article A includes, but is 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. Nicotine may also be included. Alternatively, glycerol (also known as glycerol) with a higher boiling point than nicotine may be included. Propylene glycol or plant-based materials may also be included.

[0035] In related technologies, the heating assembly 3 includes a heating tube 33 and a heating element 34 disposed on the heating tube 33. The heating element 34 includes a first connecting lead 342 and a second connecting lead 343, which are respectively used to connect the positive and negative terminals of the power supply assembly 2. The first connecting lead 342 and the second connecting lead 343 are respectively disposed at both ends along the axial direction of the heating tube 33. The power supply assembly 2 is disposed at one end of the heating assembly 3 along the axial direction of the heating tube 33. The first connecting lead 342 and the second connecting lead 343 need to be guided to the end of the heating tube 33 near the power supply assembly 2 for electrical connection. In this technology, when one of the first connecting lead 342 and the second connecting lead 343 is guided to the end of the heating tube 33 near the power supply assembly 2, it will pass through the high-temperature surface of the heating tube 33, causing the connecting lead to soften or even melt. At the same time, the connecting lead is also prone to contact with the heating section 341 disposed on the heating tube 33, causing a short circuit, resulting in the failure of the heating element 34 and affecting the normal operation of the generating device.

[0036] To address the aforementioned technical problems, this application improves upon the heating component 3. The housing 1 and power supply component 2 can be referenced from existing related technologies and will not be elaborated upon here. The heating component 3 of this application will be described in detail below.

[0037] Please see Figure 3 The heating assembly 3 includes an insertion channel 31, a support assembly 32, a heating tube 33, and a heating element 34. The heating tube 33 is coaxially disposed within the support assembly 32, which provides a mounting base for the heating tube 33, facilitating its loading and fixation. The heating tube 33 and the support assembly 32 are configured to form the insertion channel 31, which accommodates the aerosol-generating product A. The channel formed by the heating tube 33 surrounds the aerosol-generating product A and primarily employs circumferential heating. The insertion channel 31 has an insertion port 311, which communicates with the external environment for inserting the aerosol-generating product A into the insertion channel 31. The heating element 34 is disposed on the heating tube 33 and is used to heat the aerosol-generating product A after energization. The power supply assembly 2 is disposed at the end of the heating assembly 3 furthest from the insertion port 311.

[0038] Please see Figure 4 The heating element 34 includes a heating section 341, a first connecting lead 342, and a second connecting lead 343. The heating section 341 extends axially along the heating tube 33, and both ends of the heating section 341 are electrically connected to the first connecting lead 342 and the second connecting lead 343, respectively. The first connecting lead 342 and the second connecting lead 343 are used for electrical connection with the power supply component 2.

[0039] In some embodiments, the heating segment 341 is spirally wound around the outer surface of the heating tube 33. The spiral arrangement increases the heating area of ​​the heating segment 341, thereby improving the heating efficiency of the heating assembly 3. The heating segment 341 can be a spiral coil wound around the outer surface of the heating tube 33, or it can be a spiral heating circuit printed on the outer surface of the heating tube 33. Of course, in other embodiments, the heating segment 341 can be a heating cylinder, heating film, heating plate, or heating block disposed on the outer surface of the heating tube 33, as long as the first connecting lead 342 and the second connecting lead 343 of the heating segment 341 are arranged at both ends of the heating segment 341 along the axial direction of the heating tube 33.

[0040] It should be noted that the heating segment 341 being disposed on the outer surface of the heating tube 33 can be understood as the heating segment 341 being directly disposed on the outer surface of the heating tube 33 or directly embedded in the outer surface of the heating tube 33, or it can be understood as the heating segment 341 being indirectly disposed on the heating tube 33, with a connecting medium between the heating tube 33 and the heating segment 341.

[0041] When the heating element 33 is in direct contact with the heating section 341, the heating element 33 should be made of insulating material. Since the heating element 33 mainly forms the channel for heating the aerosol to generate product A, it should have high temperature resistance and good thermal conductivity. Therefore, the heating element 33 should be made of an insulating material with good thermal conductivity. For example, the heating element 33 can be made of ceramic or quartz. When the heating element 33 is in indirect contact with the heating section 341, the heating element 33 can be made of a metal material with good thermal conductivity. In this case, a connecting medium with good thermal conductivity and insulation, such as ceramic adhesive, is provided between the heating element 33 and the heating section 341. The ceramic adhesive can fix the heating section 341 to the heating element 33.

[0042] In some embodiments, a first lead hole 3214 is provided at the end of the side of the support component 32 near the insertion port 311. A first connecting lead 342 is disposed near the insertion port 311 and passes through the first lead hole 3214 to the outside of the heating component 3, where it is electrically connected to the power supply component 2. Specifically, by displacing the first connecting lead 342 near the insertion port 311, i.e. away from the power supply component 2, the first connecting lead 342 is led out from the first lead hole 3214 on the side of the support component 32. This eliminates the need to lead the first connecting lead 342 from the end of the heating tube 33 near the insertion port 311 to the end away from the insertion port 311, thus preventing the first connecting lead 342 from being softened or even melted by the high temperature of the heating tube 33. It also solves the problem of short circuit between the first connecting lead 342 and the heating section 341, which could cause the heating element 34 to fail. This ensures the normal operation of the generating device and allows the user to obtain a better suction experience.

[0043] Since the second connecting lead 343 and the first connecting lead 342 are arranged opposite each other at both ends of the heating section 341 along the axial direction of the heating tube 33, in some embodiments, the second connecting lead 343 can directly pass through the support component 32 near the end of the power supply component 2 and be electrically connected to the power supply component 2.

[0044] In other embodiments, please refer to Figure 5 Since the second connecting lead 343 may come into contact with the heating tube 33 when it is electrically connected to the power supply component 2, in order to further protect the second connecting lead 343, a second lead hole 3232 is provided at the side of the support component 32 away from the insertion port 311. The second connecting lead 343 passes through the second lead hole 3232 to the outside of the heating component 3.

[0045] In some embodiments, the axial extension length of the heating segment 341 of the heating tube 33 is less than the axial extension length of the heating tube 33. The first connecting lead 342 and the second connecting lead 343 can extend radially along the heating tube 33, with one end electrically connected to the heating segment 341 and the other end passing through the first lead hole 3214 or the second lead hole 3232. The first connecting lead 342 and the second connecting lead 343 can be straight or curved. Alternatively, the heating segment 341 can be of the same length as the heating tube 33.

[0046] In some embodiments, the cross-sectional profiles of the first lead hole 3214 and the second lead hole 3232 can be circular, elliptical, or rectangular, and are not limited thereto. Sealant may be used to fix the first lead hole 3214 and the first connecting lead 342, and the second lead hole 3232 and the second connecting lead 343, or it may not be used; the gap between them can serve as part of the air passage. The dimensions of the first lead hole 3214 and the second lead hole 3232 are preferably such that the first connecting lead 342 and the second connecting lead 343 can pass through them; the dimensions of the first lead hole 3214 and the second lead hole 3232 can be larger than the dimensions of the first connecting lead 342 and the second connecting lead 343.

[0047] Please continue reading. Figure 5 The support assembly 32 includes a first mounting base 321, a second mounting base 322, and a connector 323. The first mounting base 321 and the second mounting base 322 are respectively disposed at both ends of the connector 323. The first mounting base 321 abuts against one axial end of the heating tube 33, and the second mounting base 322 abuts against the other axial end of the heating tube 33, thereby forming an insertion channel 31 between the first mounting base 321, the heating tube 33, and the second mounting base 322. The arrangement of the first mounting base 321 and the second mounting base 322 facilitates the fixing of the heating tube 33. Furthermore, the three-section structure design of the first mounting base 321, the second mounting base 322, and the connector 323 facilitates the passing of the first connecting lead 342 and / or the second connecting lead 343 from the side of the support assembly 32 after the heating tube 33 is assembled. The connector 323 is a hollow tube structure with open ends. It is fitted over the heating element 33 and serves to concentrate energy and retain heat, improving the thermal efficiency of the heating component 3 and enabling better heating and baking of the aerosol-generated product A, thus providing a better suction experience for the user. In this embodiment, the connector 323 can be made of high-temperature resistant polyetheretherketone (PEEK) material.

[0048] In some embodiments, at least a portion of the second mounting base 322 is inserted inside the connector 323 and abuts against the end of the heating element 33. One of the first mounting base 321 and the connector 323 is provided with a limiting boss 3231, and the end of the other abuts against the limiting boss 3231, facilitating the fixed connection between the connector 323 and the first mounting base 321. Please continue reading. Figure 5 The connector 323 has a limiting boss 3231 at its end near the first mounting base 321. The end of the first mounting base 321 is inserted into the connector 323 and abuts against the limiting boss 3231. The limiting boss 3231 can be a groove on the inner wall of the connector 323, forming a stepped structure on the inner wall of the connector 323 to serve as the limiting boss 3231. Alternatively, it can be an annular protrusion or a dot-shaped protrusion extending radially inward on the inner wall of the connector 323. When the limiting boss 3231 is a dot-shaped protrusion, the cross-section of the dot-shaped protrusion in the radial direction of the connector 323 can be triangular, circular, semi-circular, elliptical, or rectangular, without much restriction.

[0049] Please see Figure 6 In some embodiments, the first mounting base 321 includes a mounting body 3211 and a snap-fit ​​portion 3212. The snap-fit ​​portion 3212 extends radially inward along the first mounting base 321 and abuts against one end of the heating tube 33. The mounting body 3211 extends axially along the first mounting base 321 and abuts against the connector 323.

[0050] Furthermore, the snap-fit ​​portion 3212 is provided with a first fixing boss 3213, which is used to abut against the end corresponding to the heating element 33. The first fixing boss 3213 can be provided with a groove on the inner wall of the snap-fit ​​portion 3212, so that a stepped structure is formed on the inner wall of the snap-fit ​​portion 3212 to serve as the first fixing boss 3213, or it can be directly provided on the inner wall of the snap-fit ​​portion 3212 as an annular protrusion or a dot-shaped protrusion extending radially inward. When the limiting boss 3231 is a dot-shaped protrusion, the cross-section of the dot-shaped protrusion in the radial direction of the connector 323 can be triangular, circular, semi-circular, elliptical, or rectangular, without much restriction.

[0051] In some embodiments, please refer to Figure 7The second mounting base 322 has a second fixing boss 3221 on its end face facing the heating tube 33. The second fixing boss 3221 is used to abut against the end of the heating tube 33. Similarly, the structure of the second fixing boss 3221 can be such that a groove is provided on the inner wall of the second mounting base 322, so that a stepped structure is formed on the inner wall of the second mounting base 322 to serve as the second fixing boss 3221, or it can be a ring-shaped protrusion or a dot-shaped protrusion extending radially inward on the inner wall of the second mounting base 322. When the limiting boss 3231 is a dot-shaped protrusion, the cross-section of the dot-shaped protrusion in the radial direction of the connector 323 can be triangular, circular, semi-circular, elliptical, or rectangular, without much restriction.

[0052] In some embodiments, please refer to Figure 8 The first mounting base 321 has a first air inlet 3215 at one end near the insertion port 311. The first air inlet 3215 is connected to the external environment at the insertion port 311 and is also connected to the insertion channel 31. In practical application, after the user draws air from one end of the insertion port 311, external air can flow from the top of the generating device (based on the state during use, the insertion port 311 is located at the top of the generating device) through the insertion port 311 and the first air inlet 3215 into the insertion channel 31 and into the aerosol generating product A. Since the air passes through the heating tube 33 and the heating element 34 during the airflow process, it can be heated into a hot airflow. Thus, this embodiment uses a heating method combining circumferential heating and central hot airflow, which gives the generating device the advantages of circumferential heating and airflow heating, thereby increasing the aerosol generation speed and uniformly heating the aerosol generating product A.

[0053] The number and shape of the first air inlets 3215 are not limited. At least one first air inlet 3215 may be provided, and at least one first air inlet 3215 is spaced apart along the circumference of the first mounting base 321. To ensure uniform airflow around the aerosol-generating product A, the first air inlets 3215 are evenly distributed along the circumference of the first mounting base 321. For example, there may be one or at least two first air inlets 3215. The cross-section of the first air inlet 3215 may be circular, elliptical, triangular, rectangular, polygonal, or other irregularly shaped. The first air inlet 3215 may be formed by multiple protrusions spaced apart on the inner wall of the first mounting base 321.

[0054] In some embodiments, an airflow channel 35 is provided between the support component 32 and the heating element 33, and the airflow channel 35 is connected to the insertion channel 31. At least one row of second air inlets 3216 is provided on the side of the support component 32, and the second air inlets 3216 connect the external environment of the side of the heating component 3 to the airflow channel 35. One or more rows of second air inlets 3216 can be provided. For example, one row of second air inlets 3216 is provided on the side of the first mounting base 321, and the second air inlets 3216 connect the external environment of the side of the heating component 3 to the airflow channel 35. That is, air enters from the side of the heating component 3, allowing the air to fully exchange heat with the heating element 33 and the heating body, thereby achieving efficient heating after the air enters the heating component 3. In practical applications, a second air inlet 3216 is provided on the side of the first mounting base 321. This second air inlet 3216 and the first lead hole 3214 are arranged along the circumference of the first mounting base 321, which improves the aesthetics of the heating assembly 3 and reduces processing and assembly difficulty. To further increase airflow and improve heating efficiency, the second air inlet 3216 can also be provided on the side of the connector 323. In some specific embodiments, the projections of the two rows of second air inlets 3216 onto the axial direction of the support assembly 32 completely overlap.

[0055] Furthermore, at least one second air inlet 3216 is provided at the same position axially on the support assembly 32, that is, at least one second air inlet 3216 is provided in each row. When there are two rows, at least one second air inlet 3216 is provided on both the side of the connector 323 and the side of the first mounting base 321. At least one second air inlet 3216 is provided at intervals along the circumference of the support assembly 32. In order to make the airflow around the aerosol generating product A uniform, the second air inlets 3216 are evenly distributed along the circumference of the support assembly 32. The number and shape of the second air inlets 3216 are not limited. For example, there may be one or at least two second air inlets 3216. The cross-section of the second air inlet 3216 may be circular, elliptical, triangular, rectangular, polygonal or other irregular structures.

[0056] In some embodiments, the second mounting base 322 is provided with an air outlet 3222, which connects the airflow channel 35 and the insertion channel 31; the second mounting base 322 is provided with a support protrusion 3223 on the side facing the first mounting base 321, which supports the aerosol generating article A, and an airflow space 36 is formed between the end of the aerosol generating article A and the side of the second mounting base 322 opposite to it, which connects the air outlet 3222 and the insertion channel 31.

[0057] In some embodiments, the support protrusion 3223 can be an annular protrusion with an air inlet 3224. Multiple air inlets 3224 are arranged around the axis of the annular protrusion, allowing air to enter the airflow space 36 uniformly from the airflow channel 35. In some other embodiments, multiple support protrusions 3223 can be provided, arranged circumferentially along the second mounting base 322. An air inlet 3224 is provided between adjacent support protrusions 3223, connecting the air outlet 3222 and the airflow space 36.

[0058] In some embodiments, the support assembly 32 further includes a clamping member 324. A clamping protrusion 3241 protrudes inward from the inner wall of the clamping member 324. The clamping protrusion 3241 abuts against the side wall of the aerosol generating article A to restrict and position the aerosol generating article A, ensuring its centered installation. This results in a uniform gap between the side wall of the aerosol generating article A and the inner wall of the insertion channel 31, guaranteeing uniform heating of the aerosol generating article A. Multiple clamping protrusions 3241 are provided and arranged around the axis of the insertion channel 31. The gap between adjacent clamping protrusions 3241 allows outside air to enter the insertion channel 31. The uniform gap between adjacent clamping protrusions 3241 ensures uniform airflow around the circumference of the aerosol generating article A. The number and shape of the clamping protrusions 3241 are not limited. At least two clamping protrusions 3241 may be provided. The cross-section of the clamping protrusion 3241 in the radial direction of the insertion channel 31 is triangular, circular, semi-circular, elliptical, or rectangular.

[0059] In some embodiments, there may be two or more heating elements 34, with adjacent heating elements 34 being insulated from each other. Each heating element 34 is provided with a first connecting lead 342 and a second connecting lead 343. Multiple first connecting leads 342 can pass through the same first lead hole 3214, in which case the multiple first connecting leads 342 are insulated from each other. Alternatively, each first connecting lead 342 may be provided with its own first lead hole 3214. Similarly, when the second connecting lead 343 passes through the second lead hole 3232, multiple second connecting leads 343 can pass through the same second lead hole 3232, or each second connecting lead 343 may be provided with its own second lead hole 3232.

[0060] 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: An insertion channel is provided for accommodating an aerosol-generating article, and the insertion channel has an insertion port for inserting the aerosol-generating article into the insertion channel. A support assembly, wherein a first lead hole is provided on one side of the support assembly near the insertion port; A heating element is coaxially disposed within the support assembly, and the heating element and the support assembly are configured to form the insertion channel; as well as The heating element includes a heating section, a first connecting lead, and a second connecting lead. The heating section extends axially along the heating tube, and both ends of the heating section are electrically connected to the first connecting lead and the second connecting lead, respectively. The first connecting lead and the second connecting lead are used for electrical connection with a power supply component. The first connecting lead is located near the insertion port and passes through the first lead hole to the outside of the heating component.

2. The heating assembly according to claim 1, characterized in that, The heating section is spirally wound around the outer surface of the heating tube in the axial direction.

3. The heating assembly according to claim 1, characterized in that, The side of the support component away from the insertion port is provided with a second lead hole, through which the second connecting lead extends to the outside of the heating component.

4. The heating assembly according to claim 1, characterized in that, The support assembly includes a first mounting base, a second mounting base, and a connector. The first mounting base and the second mounting base are respectively disposed at both ends of the connector. The first mounting base abuts against one end of the heating tube along the axial direction, and the second mounting base abuts against the other end of the heating tube along the axial direction, so as to form the insertion channel between the first mounting base, the heating tube, and the second mounting base.

5. The heating assembly according to claim 4, characterized in that, At least a portion of the structure of the second mounting base is inserted inside the connector; one of the first mounting base and the connector is provided with a limiting boss, and the end of the other abuts against the limiting boss.

6. The heating assembly according to claim 4 or 5, characterized in that, The first mounting base includes a mounting body and a snap-fit ​​portion. The snap-fit ​​portion extends radially inward along the first mounting base and abuts against one end of the heating element. The mounting body extends axially along the first mounting base and abuts against the connector. The snap-fit ​​portion is provided with a first fixing boss, which is used to abut against the end of the heating element corresponding to the heating element. And / or, the second mounting base is provided with a second fixing boss on the end face facing the heating element, which is used to abut against the end of the heating element corresponding to the heating element.

7. The heating assembly according to claim 6, characterized in that, The first mounting base has a first air inlet at one end near the insertion port, the first air inlet being connected to the external environment at the insertion port through the insertion port, and the first air inlet being connected to the insertion channel; and / or, an airflow channel is provided between the support assembly and the heating tube, the airflow channel being connected to the insertion channel; at least one row of second air inlets is provided on the side of the support assembly, the second air inlets being connected to the external environment on the side of the heating assembly and the airflow channel.

8. The heating assembly according to claim 7, characterized in that, The first air inlet is provided with at least one, and at least one first air inlet is arranged circumferentially around the first mounting base; and / or, each row of second air inlets is provided with at least one, and at least one second air inlet is arranged circumferentially around the support assembly.

9. The heating assembly according to claim 7, characterized in that, The second mounting base is provided with an air outlet, which connects the airflow channel and the insertion channel; the second mounting base has a support protrusion on its side facing the first mounting base, which supports the aerosol generating product and forms an airflow space between the end of the aerosol generating product and the opposite side of the second mounting base, which connects the air outlet and the insertion channel.

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 electrically connected to the first connecting lead and the second connecting lead, and is used to provide the power required for the operation of the heating component.

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