Heating assembly and aerosol-generating device

Abstract

The application relates to the technical field of aerosol generation, and more particularly to a heating assembly and an aerosol generating device. The heating assembly comprises a mounting rack assembly, an electromagnetic induction coil and a heating element. The mounting rack assembly is configured to have an accommodating cavity inside. The electromagnetic induction coil is configured to generate a magnetic field after being electrified, and is arranged in the accommodating cavity. The heating element is arranged inside the electromagnetic induction coil and comprises a transmission tube and a receiving part arranged in the transmission tube. The transmission tube has a heating cavity inside for accommodating an aerosol generating article. The receiving part is used for heating and generating heat radiation in the magnetic field. After being transmitted through the transmission tube, the heat radiation heats the aerosol generating article. Through the combination of the receiving part and the transmission tube, non-contact uniform heating of the aerosol generating article is realized, the risk of local overheating of the wrapping paper outside the aerosol generating article is effectively reduced, and the wrapping paper is prevented from being scorched and burnt at high temperature, so that the taste and quality of the aerosol are effectively improved.

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 apparatus that uses the principle of heating without combustion to heat aerosol-generating products to produce aerosols. An aerosol generating device generally includes a heating element that can hold the aerosol-generating product and heats it circumferentially. The aerosol-generating product typically consists of a suction section, an airflow section, and a matrix section. These three sections are encased in a paper layer to form a single structure. During heating of the aerosol-generating product, the paper layer is prone to scorching or burning, thus affecting the taste of the aerosol. Utility Model Content

[0003] This application provides a heating component and an aerosol generating device, which can solve the technical problem that the coating layer of aerosol generated products is prone to scorching and burning, which affects the taste of the aerosol.

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

[0005] Mounting bracket assembly, configured to have an internal receiving cavity;

[0006] An electromagnetic induction coil, configured to generate a magnetic field when energized, is disposed within the receiving cavity; and

[0007] A heating element is disposed inside the electromagnetic induction coil. The heating element includes a transmission tube and a sensing part disposed inside the transmission tube. The transmission tube has a heating cavity for containing the aerosol-generating product. The sensing part is used to generate heat radiation in the magnetic field. The heat radiation is transmitted through the transmission tube and then heats the aerosol-generating product.

[0008] In some alternative embodiments, the transmittance of the transmission tube to thermal radiation is ≥85%.

[0009] In some alternative embodiments, the sensor is constructed of a magnetic material.

[0010] In some alternative embodiments, the transmission tube is a hollow cylindrical structure; and / or, the transmission tube is constructed of quartz glass.

[0011] In some alternative embodiments, the thermal conductivity of the transmission tube is 1.38 W / (m·K).

[0012] In some optional embodiments, the wall of the transmission tube is provided with a mounting groove, and the sensing element is embedded in the mounting groove.

[0013] In some alternative embodiments, the transmission tube and the sensing element are sintered into a single integral structure.

[0014] In some optional embodiments, the mounting bracket assembly includes a mounting sleeve and a clamping member, with the electromagnetic induction coil sleeved on the outside of the mounting sleeve; the clamping member is inserted into one end of the mounting sleeve, and the clamping member has an inwardly protruding clamping protrusion for clamping and fixing the aerosol generating article, so that the aerosol generating article and the inner wall of the heating chamber are spaced apart.

[0015] In some alternative embodiments, the mounting bracket assembly further includes a base disposed at one end of the mounting sleeve away from the clamping member, the base having an air intake channel communicating with the exterior of the heating chamber and the aerosol generating device.

[0016] This application also provides an aerosol generating apparatus, including a housing assembly, a power supply assembly, and a heating assembly as described above, wherein the power supply assembly and the heating assembly are disposed within the housing assembly, and the power supply assembly is used to supply power to the heating assembly.

[0017] According to the heating component and aerosol generating device in this embodiment, the heating component includes a mounting frame assembly, an electromagnetic induction coil, and a heating element. The mounting frame assembly is configured to have an internal receiving cavity. The electromagnetic induction coil is disposed within the receiving cavity and is configured to generate a magnetic field after being energized. The heating element is disposed within the electromagnetic induction coil, enabling the electromagnetic induction coil to generate a magnetic field after being energized. The sensing element generates heat radiation within this magnetic field based on the electromagnetic induction effect. This heat radiation is transmitted through a transmission tube into the aerosol generating product, which can heat the aerosol generating product to generate aerosol. This achieves non-contact heating of the aerosol generating product, effectively reducing the risk of local overheating of the outer wrapping paper of the aerosol generating product, avoiding scorching and burning at high temperatures, and effectively improving the taste and quality of the aerosol. Attached Figure Description

[0018] Figure 1 This is a structural cross-sectional view of an aerosol generating device in one embodiment;

[0019] Figure 2 This is a cross-sectional view of the heating assembly in one embodiment;

[0020] Figure 3 This is a structural cross-sectional view of a portion of the heating component in one embodiment;

[0021] Figure 4 This is a schematic diagram of the heating element in one embodiment;

[0022] Figure 5 This is a schematic diagram of the heating element in another embodiment;

[0023] Figure 6 This is a schematic diagram of the structure for installing the sleeve in one embodiment.

[0024] Wherein: 100, housing assembly; 110, housing body; 120, bottom cover; 121, air inlet;

[0025] 200. Power supply components; 210. Battery; 220. Circuit board; 230. Airflow sensor;

[0026] 300. Heating component; 310. Mounting bracket assembly; 311. Receiving cavity; 312. Mounting sleeve; 3121. Abutment part; 313. Clamping element; 314. Clamping protrusion; 315. Base; 3151. Air inlet channel; 3152. Sensing cavity; 3153. Insertion cavity; 316. Spiral groove; 317. Outer sleeve; 3171. Mounting cavity; 320. Electromagnetic induction coil; 330. Heating element; 331. Transmission tube; 3311. Heating cavity; 3312. Mounting groove; 332. Sensing part;

[0027] A. Aerosol-generated products. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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).

[0031] Please see Figures 1 to 6 The embodiments of this application provide an aerosol generating device (hereinafter referred to as "generating device"), which uses the principle of heating without combustion to heat aerosol generating product A to form an aerosol for user use.

[0032] It should be noted that the term "aerosol" as used in this article can generally refer to substances that have been vaporized, atomized, sprayed or jetted, or otherwise transformed from solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0033] Aerosol-generating article A typically comprises, along its axis, a suction section, an airflow section, a matrix section, and a sealing section. The matrix section contains a matrix capable of generating aerosols, which is any suitable compound or mixture of compounds that facilitates aerosol formation during use, including but 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. The suction section provides aerosol access to the user and also reduces the aerosol temperature to prevent burns. The airflow section guides the aerosol from the matrix section to the suction section. The sealing section prevents the passage of liquids and gases to avoid leakage of substances within the matrix section. Aerosol generating product A typically uses molded paper or corrugated paper as a wrapping layer to form the suction section, airflow section, matrix section, and sealing section into a single structure. The aerosol generating product A is cylindrical (including near-cylindrical) in shape. In some embodiments, the sealing section may be omitted; for example, when the matrix material is not particulate, it is not necessary to provide a sealing section to prevent leakage of the matrix material.

[0034] Please see Figure 1The aerosol generating device includes a housing assembly 100, a power supply assembly 200, and a heating assembly 300. The housing assembly 100 can be understood as an assembly forming the overall outline of the aerosol generating device. The housing assembly 100 provides protection for the internal structure of the aerosol generating device and also facilitates its carrying and transportation. The power supply assembly 200 is electrically connected to the heating assembly 300, providing power to the heating assembly 300 and controlling its operating temperature or power. Furthermore, at least a portion of the power supply assembly 200 is exposed within the housing assembly 100. For example, buttons (not shown) or a display screen (not shown) in the power supply assembly 200 are exposed within the housing assembly 100. These buttons allow for starting, stopping, and adjusting the heating power of the generating device, and different commands can be manually input via touch on the display screen to perform the same actions.

[0035] The power supply component 200 includes a battery 210 and a circuit board 220 that are electrically connected to each other. The circuit board 220 is electrically connected to the heating component 300 and can control the starting and stopping of the heating component 300. The heating power can also be adjusted via user commands (button presses or command input). The circuit board 220 can extend along the central axis of the heating cavity 3311 inside the heating component 300, dividing the internal space of the housing component 100 into two parts. One part is used to install the heating component 300, and the other part is used to install the battery 210. Alternatively, the battery 210 and the heating component 300 can be understood as being respectively located on opposite sides of the circuit board 220, effectively utilizing the internal space of the housing component 100 and reducing unnecessary volume waste in the generating device.

[0036] In some embodiments, the circuit board 220 may be a flexible circuit board 220 or a PCB board.

[0037] In some embodiments, the battery 210 may be a disposable battery 210 or a reusable rechargeable battery 210. Accordingly, a charging port (not shown) is provided on the housing assembly 100 to charge the battery 210 by connecting a USB connector or a Type-C connector, etc.

[0038] Since the housing assembly 100 and the power supply assembly 200 are existing technologies and not the focus of this application, they will not be described in detail here. The heating assembly 300 will be described in detail below.

[0039] Please see Figures 2 to 6The heating assembly 300 includes a mounting bracket assembly 310, an electromagnetic induction coil 320, and a heating element 330. The mounting bracket assembly 310 provides a mounting base for the electromagnetic induction coil 320 and the heating element 330. Specifically, the mounting bracket assembly 310 is configured to have an internal receiving cavity 311. The electromagnetic induction coil 320 is disposed within the receiving cavity 311 and is configured to generate a magnetic field after being energized. The heating element 330 is disposed within the electromagnetic induction coil 320, so that the electromagnetic induction coil 320 can generate a magnetic field after being energized (alternating current). The heating element 330 generates heat radiation within this magnetic field based on the electromagnetic induction effect (or eddy current effect). This heat radiation is transmitted into the aerosol generating product A, which can heat the aerosol generating product A to generate aerosol.

[0040] Please see Figures 3 to 5 The heating element 330 includes a transmission tube 331 and a sensing part 332 disposed inside the transmission tube 331. The transmission tube 331 has a heating chamber 3311 for accommodating the aerosol generating product A. One side of the accommodating chamber 331 has an opening that communicates with the heating chamber 3311, so that the aerosol generating product A is disposed inside the heating chamber 3311 through the opening. The sensing part 332 is used to generate heat radiation in the magnetic field. The transmission tube 331 can transmit heat radiation. After being transmitted through the transmission tube 331, the heat radiation can penetrate into the aerosol generating product A and heat it.

[0041] This application combines the sensing part 332 and the transmission tube 331, so that the sensing part 332, which serves as a heat source, and the aerosol generating product A are separated by the transmission tube 331. This enables non-contact uniform heating of the aerosol generating product A, effectively reducing the risk of local overheating of the outer wrapping paper of the aerosol generating product A, avoiding scorching and burning at high temperatures, and effectively improving the taste and quality of the aerosol.

[0042] In some embodiments, the transmittance of the transmission tube 331 to thermal radiation is ≥85%. High transmittance can reduce energy reflection and absorption losses, thereby improving heat utilization and reducing the energy consumption of the heating component 300. For example, the transmittance of the transmission tube 331 to thermal radiation can be 85%, 90%, or 95%, etc.

[0043] In some embodiments, the sensing element 332 is constructed of a magnetic material, such as silicon steel sheet, 316 stainless steel, or cold-rolled carbon steel alloy (SPCE alloy). The sensing element 332 can generate heat in a magnetic field and release energy in the form of thermal radiation after heating. When the temperature of the sensing element 332 is between 200°C and 350°C (common heating temperature for tobacco), the peak wavelength of thermal radiation is concentrated in the mid-infrared band (2μm-10μm). Correspondingly, the transmission tube 331 has good transmittance in the 2μm-10μm mid-infrared band, with a transmittance of up to 85% or higher. The sensing element 332, constructed of a magnetic material, can, when combined with the electromagnetic induction coil 320, achieve the required baking temperature for the aerosol-generated product A. Furthermore, the magnetic material of the sensing element 332 provides the best temperature limiting effect, allowing for better control of the heating temperature. After inducing the electromagnetic field, the sensing element 332 can only be heated to a certain temperature sufficient for baking the aerosol-generated product A, preventing the temperature from becoming too high and causing the aerosol-generated product A to burn.

[0044] In some embodiments, the transmission tube 331 is constructed of quartz glass with a transmittance of over 90% and a wide range of transmittable wavelengths, thereby improving transmission efficiency and heating efficiency. The transmission tube 331 is a hollow cylindrical structure (including a quasi-cylindrical structure) and forms a cylindrical (including quasi-cylindrical) heating cavity 3311 to match the shape of the aerosol-generating product A, so that heat radiation enters uniformly from the circumference of the aerosol-generating product A.

[0045] In some embodiments, the thermal conductivity of the transmission tube 331 is 1.38 W / (m·K), which ensures rapid heat conduction and uniform distribution, thereby effectively improving the stability and controllability of heating.

[0046] In some embodiments, the thickness of the transmission tube 331 is generally between 0.3 mm and 1 mm. This effectively ensures that the transmission tube 331 has good impact resistance and high-temperature deformation resistance, while also having good transmittance to meet the requirement of ≥85% transmittance.

[0047] Please see Figure 4 In some embodiments, the wall of the transmission tube 331 is provided with a mounting groove 3312, and the sensing part 332 is embedded in the mounting groove 3312.

[0048] Please see Figure 5 In other embodiments, the transmission tube 331 and the sensing element 332 are sintered into a single integral structure. Specifically, the sintering process involves wrapping the molten, fluid transmission tube 331 around the sensing element 332 and finally sintering it into the desired shape. Figure 5The integrated structure shown allows the sensing part 332 to indirectly contact the aerosol-generating product A through the transmission tube 331, achieving the purpose of non-contact heating.

[0049] Please see Figure 2 In some embodiments, the mounting bracket assembly 310 includes a mounting sleeve 312 and a clamping member 313. The electromagnetic induction coil 320 is sleeved on the outside of the mounting sleeve 312. The clamping member 313 is inserted into one end of the mounting sleeve 312, that is, the clamping member 313 is located at one end of the opening of the receiving cavity 311. The clamping member 313 has a clamping protrusion 314 protruding inward. The clamping protrusion 314 is used to clamp and fix the aerosol generating product A, so that the aerosol generating product A and the inner wall of the heating cavity 3311 are spaced apart to better achieve non-contact heating. The clamping member 313, the clamping protrusion 314, the mounting sleeve 312, and the transmission tube 331 are coaxially arranged, so that the aerosol generating product A can be centered, thereby ensuring that the aerosol generating product A is heated evenly around its circumference.

[0050] It should be noted that the "inside" in "protruding inward" refers to the interior of the receiving cavity 311, that is, the clamping protrusion 314 is set in a direction closer to the central axis of the receiving cavity 311 relative to the clamping member 313.

[0051] In some embodiments, the clamping protrusion 314 is an annular structure, and the inner diameter of the cavity it encloses is smaller than the inner diameter of the heating cavity 3311. The outer wall of the aerosol-generated product A is tightly fitted with the clamping protrusion 314 to achieve fixation of the aerosol-generated product A and spacing between it and the inner wall of the heating cavity 3311.

[0052] In some embodiments, multiple clamping protrusions 314 are provided, and the multiple clamping protrusions 314 are evenly distributed around the central axis of the heating cavity 3311. The multiple clamping protrusions 314 are arranged closer to the central axis than the sidewall of the heating cavity 3311. It can also be understood that the distance between the clamping protrusions 314 and the central axis is less than the inner diameter of the heating cavity 3311, so that the aerosol-generated article A can be clamped and fixed in the heating cavity 3311 and spaced apart from the inner wall of the heating cavity 3311. The cross-sectional shape (the cross-section along the direction of the central axis) of the clamping protrusions 314 can be triangular, semi-circular, spherical, rectangular, polygonal, or other irregular structures.

[0053] In some embodiments, the clamping protrusion 314 and the clamping member 313 are made of silicone material so that the clamping protrusion 314 and the aerosol-generating article A are in direct elastic contact to protect the aerosol-generating article A.

[0054] In some embodiments, the distance between the aerosol generating article A and the inner wall of the heating chamber 3311 can be 0.5mm-2mm. Within this distance range, the heat radiation transfer efficiency can be maximized to ensure the heating effect and to avoid scorching.

[0055] Please continue reading. Figure 2 The mounting bracket assembly 310 also includes a base 315, which is located at the end of the mounting sleeve 312 away from the clamping member 313. Alternatively, the base 315 can be understood as being located at the end away from the opening of the receiving cavity 311 and is sealed to the mounting sleeve 312. An air inlet channel 3151 is provided inside the base 315, which connects the heating cavity 3311 and the outside of the aerosol generating device. The base 315 extends from the end connected to the mounting sleeve 312 to the bottom cover 120 of the housing assembly 100. An air inlet 121 is provided on the bottom cover 120 of the housing assembly 100, which communicates with the air inlet channel 3151.

[0056] In some embodiments, an airflow sensor 230 is provided on the airflow channel. The airflow sensor 230 monitors the airflow conditions when airflow passes through and transmits the information to the circuit board 220 of the power supply component 200. The circuit board 220 triggers the heating component 300 to start, thereby realizing the self-starting process of the aerosol generating device. In use, the user draws aerosol generating product A through one end of the opening. Outside air flows through the airflow channel to the aerosol generating product A in the heating chamber 3311. When the air passes quickly through the airflow sensor 230, the airflow sensor 230 and the circuit board 220 of the power supply component 200 cooperate to activate the sensing part 332 in the heating component 300 to heat up and generate aerosol in the aerosol generating product A. The air flowing to the aerosol generating product A carries the aerosol into the suction section for the user's use.

[0057] In some embodiments, the base 315 is provided with a sensing cavity 3152, which is disposed on and communicates with the air intake channel 3151. It can also be understood that the sensing cavity 3152 is disposed on the air (airflow) flow path. The airflow sensor 230 is disposed in the sensing cavity 3152, with the sensing surface facing the air intake channel 3151, and the other side opposite to the sensing surface is connected to the circuit board 220 through wires.

[0058] In some embodiments, the mounting sleeve 312 and the base 315 can be made of a material with good insulation and heat resistance, such as polyetheretherketone (PEEK). The mounting sleeve 312 and the base 315 also have a low thermal conductivity, which avoids excessive heat loss when they come into contact with the heating element 330, thus preventing the heating element 330's sensing part 332 from damaging the mounting bracket assembly 310 after heating, and ensuring the service life of the mounting bracket assembly 310.

[0059] Please continue reading. Figure 2 and Figure 3 The mounting bracket assembly 310 also includes an outer sleeve 317, which is disposed outside the mounting sleeve 312. The outer wall of the mounting sleeve 312 has an outwardly protruding abutment portion 3121 that abuts against the inner wall of the outer sleeve 317 to form a mounting cavity 3171 between the outer sleeve 317 and the mounting sleeve 312. The electromagnetic induction coil 320 is fixed within this mounting cavity 3171. The outer sleeve 317 may also be made of the same material as the mounting sleeve 312 and the base 315.

[0060] Please see Figure 6 In some embodiments, a spiral groove 316 is provided on the outer wall of the mounting sleeve 312, extending along the central axis of the heating cavity 3311, and the electromagnetic induction coil 320 is fixed within the spiral groove 316. Alternatively, in another embodiment, the electromagnetic induction coil 320 can be directly sleeved on the outer wall of the mounting sleeve 312. To ensure connection stability, a glue is directly filled between the mounting sleeve 312 and the electromagnetic induction coil 320 for fixation. This glue can be ceramic glue or glass glue, possessing good insulation properties and a low thermal conductivity.

[0061] In some embodiments, at least a portion of the base 315 is inserted into the mounting sleeve 312, and the side of the base 315 facing the mounting sleeve 312 has an insertion cavity 3153. One end of the heating element 330 is inserted into the insertion cavity 3153, and the other end abuts against a protrusion on the inner wall of the mounting sleeve 312 to fix the heating element 330.

[0062] In some embodiments, the housing assembly 100 includes a detachably disposed housing body 110 and a bottom cover 120. One end of the housing body 110 has an opening for inserting the aerosol-generated article A, which communicates with the opening of the receiving cavity 311 and the heating cavity 3311. The other end also has an opening for installing the bottom cover 120. At least a portion of the bottom cover 120 is inserted into the housing body 110 and is sealed to the housing body 110. The detachable design of the housing body 110 and the bottom cover 120 facilitates the assembly and disassembly of the power supply component 200, the heating component 300, etc. in the generating device.

[0063] In some embodiments, the electromagnetic induction coil 320 has good conductivity, high temperature resistance, flexibility and corrosion resistance to ensure efficient and stable generation of magnetic field. The electromagnetic induction coil 320 is constructed from copper enameled wire, aluminum enameled wire, silver-plated copper enameled wire or copper-clad aluminum enameled wire.

[0064] The specific principle by which this application solves the technical problem is as follows: Aerosol-generated product A typically consists of a suction section, an airflow section, and a matrix section, with an outer paper wrapping layer integrally formed. Traditional heating methods easily lead to excessively high local temperatures, causing the wrapping layer to carbonize. In this application, the clamping member 313 of the heating assembly 300, through the inwardly protruding clamping protrusion 314, suspends and fixes the aerosol-generated product A within the heating chamber 3311 of the transmission tube 331, maintaining a uniform distance between it and the inner wall of the heating chamber 3311 to avoid direct contact; simultaneously, the thermal radiation generated by the sensing part 332 under the action of the alternating magnetic field is uniformly transmitted to the surface of the product through the high-transmittance (≥85%) transmission tube 331, and the airflow introduced by the air inlet channel 3151 assists in heat dissipation, effectively reducing the risk of local overheating of the wrapping layer. In addition, quartz glass is selected as the material for the transmission tube 331. Its thermal conductivity of 1.38 W / (m·K) ensures rapid heat conduction and uniform distribution, further improving the stability and controllability of heating, and can significantly improve the taste and quality of aerosols.

[0065] Another embodiment of this application provides a heating component 300, which can be applied in a heating non-combustible aerosol generating device. The specific structure of the heating component 300 has been described in detail above and will not be repeated here.

[0066] 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: Mounting bracket assembly, configured to have an internal receiving cavity; An electromagnetic induction coil, configured to generate a magnetic field when energized, is disposed within the receiving cavity; and A heating element is disposed inside the electromagnetic induction coil. The heating element includes a transmission tube and a sensing part disposed inside the transmission tube. The transmission tube has a heating cavity for containing the aerosol-generating product. The sensing part is used to generate heat radiation in the magnetic field. The heat radiation is transmitted through the transmission tube and then heats the aerosol-generating product.

2. The heating assembly according to claim 1, characterized in that, The transmittance of the transmission tube to thermal radiation is ≥85%.

3. The heating assembly according to claim 1, characterized in that, The sensory part is constructed of a magnetic material.

4. The heating assembly according to claim 1, characterized in that, The transmission tube is a hollow cylindrical structure; and / or the transmission tube is constructed of quartz glass.

5. The heating assembly according to claim 1, characterized in that, The thermal conductivity of the transmission tube is 1.38 W / (m·K).

6. The heating assembly according to any one of claims 1-5, characterized in that, The wall of the transmission tube is provided with an installation groove, and the sensing element is embedded in the installation groove.

7. The heating assembly according to any one of claims 1-5, characterized in that, The transmission tube and the sensing element are sintered into a single integral structure.

8. The heating assembly according to claim 1, characterized in that, The mounting bracket assembly includes a mounting sleeve and a clamping member. The electromagnetic induction coil is sleeved on the outside of the mounting sleeve. The clamping member is inserted into one end of the mounting sleeve and has a clamping protrusion protruding inward. The clamping protrusion is used to clamp and fix the aerosol generating product so that the aerosol generating product and the inner wall of the heating chamber are spaced apart.

9. The heating assembly according to claim 8, characterized in that, The mounting bracket assembly also includes a base, which is disposed at the end of the mounting sleeve away from the clamping member. The base has an air intake channel that connects the heating chamber and the outside of the aerosol generating device.

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

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