Heating assembly and aerosol generating device

Abstract

The utility model discloses a heating assembly and an aerosol generating device. The heating assembly comprises a support pipe and a heating piece. A containing cavity is defined by the inner wall of the support pipe and used for containing an aerosol generating substrate. The heating piece is embedded in the support pipe on the inner wall of the support pipe. According to the heating assembly and the aerosol generating device, the heating piece is embedded in the support pipe on the inner wall of the support pipe, so that compared with the mode that the heating piece is arranged on the outer wall of the support pipe, heat generated by the heating piece can directly act on the aerosol generating substrate, loss of the heat generated by the heating piece in the transfer process is reduced, and the heat utilization rate of the aerosol generating device is improved. Therefore, the heating efficiency of the heating assembly can be improved, the smoking taste of a user can be guaranteed, and the energy consumption of the heating assembly can be reduced.

Description

Technical Field

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

[0002] An aerosol generator is a small device that uses heat-not-burning (HNB) technology to act on an aerosol-generating matrix and produce aerosols. Specifically, aerosol generators typically use heating elements to heat the aerosol-generating matrix, causing it to generate aerosols. However, current heating elements have low heating efficiency, resulting in high energy consumption and negatively impacting the user's inhalation experience. Utility Model Content

[0003] The embodiments of this application provide a heating component and an aerosol generating apparatus.

[0004] The heating assembly of this application includes a support tube and a heating element. The inner wall of the support tube forms a cavity for accommodating the aerosol generation matrix. The heating element is embedded in the inner wall of the support tube.

[0005] In some embodiments, the material of the support tube has thermo-pressurized, pneumatically pressed, or hydraulically deformable properties, and the heating element is pressed and embedded in the support tube; the heating element is flush with the inner wall of the support tube; or, the heating element is partially embedded in the support tube; or, the heating element is completely embedded in the support tube.

[0006] In some embodiments, the support tube is made of any one of copper, stainless steel, and aluminum alloy. The heating element includes a metal heating wire, and an insulating layer is provided between the support tube and the heating element.

[0007] In some embodiments, the wall thickness of the support is 0.02mm-0.30mm.

[0008] In some embodiments, the support tube includes a body portion and a mounting portion, the inner wall of the body portion being recessed outward and extending to form the mounting portion and the mounting groove, the mounting groove accommodating the heating element.

[0009] In some embodiments, the inner wall of the support tube is recessed outward to form a mounting groove, which accommodates the heating element.

[0010] In some embodiments, the heating assembly further includes two end caps and a heat insulation element. The two end caps are respectively connected to both ends of the support tube. The heat insulation element is disposed around the outside of the support tube and the end caps, the radial dimension of the end caps being larger than the radial dimension of the support tube, the heat insulation element abutting against the end caps, and the heat insulation element and the support tube being spaced apart to form a first heat insulation cavity.

[0011] In some embodiments, the heating assembly further includes a seal disposed between the heat insulation member and the end cap, wherein the heat insulation member, the end cap, the support tube, and the seal seal together to form the first heat insulation cavity.

[0012] In some embodiments, the heat insulation member is further provided with a second heat insulation cavity.

[0013] The aerosol generating apparatus of this application includes a heating component and a housing as described in any of the above embodiments, wherein the heating component is disposed within the housing.

[0014] In the heating assembly and aerosol generating device of this application embodiment, the heating element is embedded in the inner wall of the support tube. In this way, compared with the heating element being disposed on the outer wall of the support tube, the heat generated by the heating element can act more directly on the aerosol generating matrix, reducing the loss of heat generated by the heating element during the transfer process, thereby improving the heating efficiency of the heating assembly. This not only ensures the user's sucking experience but also reduces the energy consumption of the heating assembly.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0017] Figure 1 This is a cross-sectional structural schematic diagram of an aerosol generating apparatus according to certain embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the support structure in two states in some embodiments of the aerosol generating apparatus of this application.

[0019] Figure 3 This is a three-dimensional structural schematic diagram of an aerosol generating apparatus according to certain embodiments of this application.

[0020] Explanation of key component symbols:

[0021] 1000 aerosol generating device;

[0022] 100 Heating components; 200 Aerosol generation matrix; 300 Housing; 400 Electronic control board; 500 Power supply unit;

[0023] 10 Support tube; 101 Inner wall; 103 Outer wall; 11 Receiving cavity; 13 Body; 15 Mounting part; 151 Mounting groove;

[0024] 20 Heating element; 30 Heat insulation element; 31 Second heat insulation cavity; 40 End cap; 50 Sealing element; 301 First heat insulation cavity. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] An aerosol generating device is a small device that utilizes heat-not-burning (HNB) technology to act on an aerosol generating matrix and generate aerosols. Specifically, aerosol generating devices typically use heating elements to heat the aerosol generating matrix, causing it to generate aerosols. However, current heating elements have low heating efficiency, resulting in high energy consumption and negatively impacting the user's inhalation experience. To address this issue, this application provides a heating element 100 (… Figure 1 (as shown) and aerosol generating device 1000 ( Figure 3 (As shown).

[0031] Please see Figure 1 The heating assembly 100 of this application embodiment includes a support tube 10 and a heating element 20. The inner wall 101 of the support tube 10 forms a receiving cavity 11, which is used to receive the aerosol generating matrix 200. Figure 3 (As shown). The heating element 20 is embedded in the inner wall 101 of the support tube 10.

[0032] The support tube 10 is a structure in the heating assembly 100 used to provide support and protection for structures such as the heating element 20. The cross-section of the support tube 10 may include, but is not limited to, circular, square, triangular, and elliptical shapes. The cross-sectional shape of the accommodating cavity 11 is approximately the same as the cross-sectional shape of the aerosol generating matrix 200. For example, if the cross-sectional shape of the accommodating cavity 11 is circular, the cross-sectional shape of the aerosol generating matrix 200 is also circular.

[0033] The aerosol generating matrix 200 is a processed product that, when heated, can generate aerosols. The aerosol generating matrix 200 can be in a liquid, fully solid, or semi-solid state. For example, when the aerosol generating matrix 200 is fully solid, it can be in the form of sheets or columns. The aerosol generating matrix 200 can be prepared using processes such as rolling, slurry preparation, die casting, or extrusion. Aerosols can be visible or invisible and may include vapors (e.g., fine particulate matter in a gaseous state, which is typically liquid or solid at room temperature) as well as liquid droplets of gas and condensed vapor.

[0034] The heating element 20 is a structure in the heating assembly 100 used to heat the aerosol generating matrix 200. The heating element 20 includes, but is not limited to, a laser emitter, an infrared emitter, a heating wire, and a heating mesh. In embodiments of this application, the heating element 20 includes a metal heating wire. The metal heating wire can be made of materials such as nickel-chromium alloy, iron-chromium-aluminum alloy, stainless steel, or titanium alloy. Exemplarily, when the aerosol generating matrix 200 is housed in the receiving cavity 11 and the heating element 20 is energized, the heating element 20 can generate heat, and this heat can directly act on the aerosol generating matrix 200 to heat it and generate aerosols.

[0035] In some embodiments, the heating element 20 may be spiral-shaped, thereby increasing the contact area between the heating element 20 and the aerosol generating matrix 200 compared to a straight heating element 20, which can improve heating efficiency and also avoid local overheating or uneven temperature of the aerosol generating matrix 200, thereby improving the atomization effect of the aerosol generating matrix 200 and ensuring the user's inhalation experience.

[0036] In some embodiments of this application, the material of the support tube 10 has thermo-pressurized, pneumatically pressed, or hydraulically deformable properties. The heating element 20 is pressed and embedded in the support tube 10. That is, when the support tube 10 is subjected to thermo-pressurized, pneumatically pressed, or hydraulically pressed and deformed (e.g., plastically deformed), the heating element 20 can be embedded in the support tube 10. In one example, the heating element 20 is flush with the inner wall 101 of the support tube 10. In this case, at least a portion of the heating element 20 is exposed in the receiving cavity 11, so that the heat generated by the heating element 20 can directly act on the aerosol generating matrix, further reducing the heat loss during the transfer process. In another example, a portion of the heating element 20 is embedded in the support tube 10. In this case, a portion of the heating element 20 protrudes from the inner wall 101 of the support tube 10 and extends into the receiving cavity 11. In another example, the heating element 20 is completely embedded in the support tube 10. In this case, the heating element 20 is entirely located within the support tube 10, which further reduces the possibility of the heating element 20 being damaged by impact and extends its service life. The embodiments described below are only illustrated by the example of the heating element 20 being flush with the inner wall 101 of the support tube 10.

[0037] It should be noted that hot pressing is a process that uses heating and pressurization to shape materials; pneumatic pressing is a process that uses gas as a force transmission medium and controls the gas pressure to shape or process materials; and hydraulic pressing is a process that uses liquid as a working medium to transmit power to process materials.

[0038] The material of the support tube 10 has hot-pressing, pneumatic, or hydraulic deformation characteristics, which facilitates the processing and manufacturing of the support tube 10 and improves its applicability. In some embodiments, the material of the support tube 10 includes any one of copper, stainless steel, and aluminum alloy. It is understood that, in addition to copper, stainless steel, and aluminum alloy, the support tube 10 may also be made of other materials with hot-pressing, pneumatic, or hydraulic deformation characteristics, which will not be listed here.

[0039] Specifically, please combine Figure 2 , Figure 2 Figure (a) shows the state of the support tube 10 when it is not subjected to heat, air or hydraulic pressure; Figure 2 Figure (b) shows the state of the support tube 10 after being subjected to heat, air, or hydraulic pressure. The heating component 100 can be formed as follows: First, the heating element 20 is fitted onto the mold; then, the support tube 10 is fitted onto the outside of the heating element 20 (the side of the heating element 20 furthest from the mold). At this time, the support tube 10... Figure 2As shown in Figure (a); finally, the support tube 10 and the heating element 20 are bonded together by hot pressing, pneumatic pressing or hydraulic process to form a heating assembly 100, and the heating element 20 is embedded in the inner wall 101 of the support tube 10. At this time, the support tube 10 is as shown in Figure (a); Figure 2 As shown in Figure (b). It should be noted that the molding method of the heating component 100 in the above embodiment is only an example. In other embodiments, the molding method of the heating component 100 may include other forms, which will not be described in detail here.

[0040] In the heating assembly 100 of this application embodiment, the heating element 20 is embedded in the inner wall 101 of the support tube 10. In this way, compared with the heating element 20 being disposed on the outer wall 103 of the support tube 10, the heat generated by the heating element 20 can act more directly on the aerosol generating matrix 200, reducing the loss of heat generated by the heating element 20 during the transfer process, thereby improving the heating efficiency of the heating assembly 100. This not only ensures the user's sucking experience but also reduces the energy consumption of the heating assembly 100.

[0041] The heating element 20 is flush with the inner wall 101 of the support tube 10, that is, part of the heating element 20 is exposed in the accommodating cavity 11. This allows the heating element 20 to be in direct contact with the aerosol generating matrix 200, thereby further reducing the heat loss during the transfer process and improving the heating efficiency of the heating assembly 100.

[0042] In addition, the heating element 20 is embedded in the inner wall 101 of the support tube 10, which can improve the stability of the heating element 20 on the support tube 10, reduce the possibility of deformation of the heating element 20, thereby making the temperature field generated by the heating element 20 more uniform, improving the atomization effect of the aerosol generating matrix 200, and ensuring the user's inhalation experience.

[0043] The heating component 100 will be further explained below with reference to the accompanying drawings.

[0044] Please see Figure 1 In some embodiments, the yield strength of the material of the support tube 10 is 50 MPa to 350 MPa. It should be noted that, in some embodiments, the yield strength of the material of the support tube 10 is any one of 50 MPa, 100 MPa, 150 MPa, 200 MPa, 250 MPa, 300 MPa and 350 MPa or any value between any two of these values.

[0045] Yield strength refers to the maximum stress value of a material before it begins to undergo plastic deformation when subjected to external force. In other words, when the stress on a material exceeds the maximum stress value, the material can begin to undergo permanent deformation and no longer return to its original shape.

[0046] If the yield strength of the material of the support tube 10 is less than 50 MPa, the rigidity of the support tube 10 will be low, and the support tube 10 will easily undergo plastic deformation under external force. This will prevent the support tube 10 from providing effective support for the heating element 20 and other structures, affecting the stability and reliability of the heating assembly 100. If the yield strength of the material of the support tube 10 is greater than 350 MPa, the support tube 10 will require a large external force to undergo plastic deformation, making the support tube 10 difficult to process and shape. In this embodiment, the yield strength of the material of the support tube 10 is 50 MPa-350 MPa. This can prevent the rigidity of the support tube 10 from being too low, thus ensuring that the support tube 10 can provide effective support for the heating element 20 and other structures, improving the stability and reliability of the heating assembly 100. On the other hand, it can also prevent the rigidity of the support tube 10 from being too high, making it easier to process and shape the support tube 10.

[0047] In some embodiments, the wall thickness of the support tube 10 is 0.02mm-0.30mm. Specifically, in some embodiments, the wall thickness of the support tube 10 can be any one of 0.02mm, 0.05mm, 0.10mm, 0.15mm, 0.20mm, 0.25mm and 0.30mm or any value between any two of these values.

[0048] If the wall thickness of the support tube 10 is less than 0.02 mm, the rigidity of the support tube 10 will be low, and the support tube 10 will not be able to provide effective support for the heating element 20 and other structures, affecting the stability and reliability of the heating assembly 100. If the wall thickness of the support tube 10 is greater than 0.30 mm, the space occupied by the support tube 10 will be large, which is not conducive to the miniaturization of the heating assembly 100. In the embodiment of this application, the wall thickness of the support tube 10 is 0.02 mm to 0.30 mm. This can prevent the support tube 10 from having low rigidity, ensuring that the support tube 10 can provide effective support for the heating element 20 and other structures, and improving the stability and reliability of the heating assembly 100. On the other hand, it can reduce the space occupied by the support tube 10, which is conducive to the miniaturization of the heating assembly 100.

[0049] Furthermore, in some embodiments, the wall thickness of the support tube 10 is 0.05mm-0.10mm. Specifically, in some embodiments, the wall thickness of the support tube 10 can be any one of 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, and 0.10mm, or any value between any two of these values.

[0050] Please continue reading. Figure 1In some embodiments, the support tube 10 includes a body portion 13 and a mounting portion 15. The inner wall of the body portion 13 is recessed outward and extends to form the mounting portion 15 and a mounting groove 151, which accommodates the heating element 20. It is understood that in this embodiment, in the direction perpendicular to the central axis of the body portion 13 (i.e., radial X), the bottom wall of the mounting groove 151 protrudes relative to the outer wall of the body portion 13.

[0051] Specifically, in some embodiments, when the support tube 10 is subjected to thermal pressure, pneumatic pressure, or hydraulic pressure, the inner wall of the body portion 13 can be recessed outward (i.e., in a direction away from the central axis of the body portion 13) and extend to form a mounting portion 15 and a mounting groove 151, and the mounting groove 151 communicates with the receiving cavity 11. The mounting groove 151 can fix the mounting position of the heating element 20 on the support tube 10, preventing the heating element 20 from loosening or falling off the support tube 10 and causing deformation of the heating element 20, thereby improving the uniformity of the temperature field generated by the heating element 20, and further enhancing the atomization effect of the aerosol generating matrix 200, ensuring the user's inhalation experience.

[0052] It should be noted that in some embodiments, the wall thicknesses of the body portion 13 and the mounting portion 15 may be the same or different, and the wall thicknesses of both the body portion 13 and the mounting portion 15 are 0.02mm-0.30mm. For example, the wall thicknesses of the body portion 13 and the mounting portion 15 may be the same, and both the body portion 13 and the mounting portion 15 may be 0.05mm; or, for another example, the wall thicknesses of the body portion 13 and the mounting portion 15 may be different, with the body portion 13 having a wall thickness of 0.08mm and the mounting portion 15 having a wall thickness of 0.05mm.

[0053] For example, the heating element 20 can be completely housed within the mounting groove 151 and exposed to the receiving cavity 11. Thus, compared to a portion of the heating element 20 being located within the receiving cavity 11, the heating element 20 being completely housed within the mounting groove 151 not only allows the heat generated by the heating element 20 to directly act on the aerosol generating matrix 200, improving heating efficiency, but also prevents interference between the aerosol generating matrix 200 and the heating element 20 during the insertion of the aerosol generating matrix 200 into the receiving cavity 11, ensuring the proper assembly of the aerosol generating matrix 200 within the heating assembly 100.

[0054] In other embodiments, the inner wall 101 of the support tube 10 is recessed outward to form a mounting groove 151, which accommodates the heating element 20. It is understood that in this embodiment, in a direction perpendicular to the central axis of the body portion 13, the bottom wall of the mounting groove 151 is located between the outer wall 103 and the inner wall 101 of the support tube 10.

[0055] Please see Figure 1In some embodiments, an insulating layer is provided between the support tube 10 and the heating element 20. It should be noted that, in some embodiments, the material of the insulating layer includes, but is not limited to, quartz, ceramic, polyvinyl chloride (PVC), and polyethylene (PE).

[0056] The insulating layer isolates the electrical connection between the heating element 20 and the support tube 10, thereby preventing direct contact between the heating element 20 and the support tube 10 and the resulting short circuit. This not only improves the stability and reliability of the heating assembly 100 but also ensures its safe operation. In one example, the insulating layer and the inner wall 101 of the support tube 10 can be connected in a detachable or non-detachable manner. Detachable connections include, but are not limited to, bolted or snap-fit ​​connections; non-detachable connections include, but are not limited to, adhesive or welding. It is understood that in other examples, the insulating layer can also be applied to the inner wall 101 of the support tube 10 by means of a coating.

[0057] In some embodiments, the insulating layer is disposed on the entire inner wall 101 of the support tube 10 and is located between the heating element 20 and the support tube 10. In other embodiments, the insulating layer is disposed on a portion of the inner wall 101 of the support tube 10, for example, the insulating layer is disposed only on the inner wall of the mounting groove 151 and is located between the heating element 20 and the support tube 10, which can reduce the production cost of the heating assembly 100.

[0058] It is understood that in other embodiments, the insulating layer may also be sleeved on the outside of the heating element 20 and located between the heating element 20 and the support tube 10, which can also isolate the electrical connection between the heating element 20 and the support tube 10.

[0059] In some embodiments, the heating assembly 100 further includes two end caps 40 and a heat insulation member 30. The two end caps 40 are respectively connected to both ends of the support tube 10. The heat insulation member 30 is disposed around the outside of the support tube 10 and the end caps 40. The dimension of the end caps 40 in the radial X direction is larger than the dimension of the support tube 10 in the radial X direction. The heat insulation member 30 abuts against the end caps 40, and the heat insulation member 30 and the support tube 10 are spaced apart to form a first heat insulation cavity 301.

[0060] In this regard, please combine Figure 3The first heat insulation cavity 301 can block heat transfer between the heating element 20 and the outside environment, thereby reducing the heat loss generated by the heating element 20. That is, the heat generated by the heating element 20 can act on the aerosol generating matrix 200 as much as possible, thereby improving the heating efficiency of the heating assembly 100 and reducing the energy consumption of the heating assembly 100. In addition, when the heating assembly 100 is installed in the housing 200 of the aerosol generating device 1000, the heat insulation component 30 can prevent the heat generated by the heating element 20 from affecting other structures in the aerosol generating device 1000 (such as the electronic control board 400 or the power supply unit 500), thereby ensuring the normal operation of the aerosol generating device 1000. Furthermore, the heat insulation component 30 can protect the support tube 10 and the heating element 20 to a certain extent, reducing the possibility of damage to the support tube 10, extending the service life of the heating assembly 100, and ensuring the normal operation of the heating assembly 100.

[0061] It should be noted that, in some embodiments, the thermal insulation component 30 may be made of materials with low thermal conductivity, such as aerogel (e.g., foam aerogel, ceramic fiber aerogel, and pre-oxidized fiber aerogel) and fiber felt (e.g., ceramic fiber felt and glass fiber felt).

[0062] The end cap 40 and the support tube 10 can be connected together using either a detachable or non-detachable connection method. Detachable connections include, but are not limited to, bolted or snap-fit ​​connections; non-detachable connections include, but are not limited to, adhesive or welding. It is understood that in other embodiments, the end cap 40 can also be connected to an external structure. For example, the end cap 40 can be connected to the housing 300 of the aerosol generating device 100 to enable the installation of the heating component 100 within the aerosol generating device 1000.

[0063] In some embodiments, a sealing element is provided between the end cap 40 and the support tube 10. This sealing element seals the gap between the end cap 40 and the support tube 10, specifically the gap between the inner wall 101 of the end cap 40 and the support tube 10. This prevents aerosols generated by the aerosol generating matrix 200 from leaking through the gap between the end cap 40 and the support tube 10, ensuring the amount of aerosol the user can inhale, and thus guaranteeing the user's inhalation experience. It should be noted that in some embodiments, the sealing element may be an adhesive or similar material.

[0064] Furthermore, in some embodiments, the heating assembly 100 further includes a sealing element 50, which is disposed between the heat insulation element 30 and the end cap 40. The heat insulation element 30, the end cap 40, the support tube 10, and the sealing element 50 seal to form a first heat insulation cavity 301. It should be noted that in some embodiments, the sealing element 50 may be made of elastic materials such as rubber or silicone.

[0065] Specifically, in some embodiments, the sealing element 50 may be disposed between the heat insulation element 30 and the end cap 40. In this way, the sealing element 50 can seal the gap between the heat insulation element 30 and the end cap 40, thereby preventing the aerosol generated by the aerosol generating matrix 200 from leaking through the gap between the heat insulation element 30 and the end cap 40, ensuring the amount of aerosol that the user can inhale, and thus ensuring the user's inhalation experience. On the other hand, the heat insulation element 30, the end cap 40, the support tube 10 and the sealing element 50 can be sealed together to form the first heat insulation cavity 301, reducing the loss of heat generated by the heating element 20.

[0066] Please continue reading. Figure 1 In some embodiments, the heat insulation component 30 is further provided with a second heat insulation cavity 31, which can block heat transfer between the heating component 20 and the outside. In one example, the second heat insulation cavity 31 is a vacuum cavity, thus the thermal conductivity of the second heat insulation cavity 31 is extremely low, which is beneficial to improving the heat insulation effect of the heat insulation component 30. In another example, the second heat insulation cavity 31 is a hollow cavity.

[0067] Please see Figure 3 The aerosol generating apparatus 1000 of the present application includes a heating component 100 and a housing 300 as described in any of the above embodiments, with the heating component 100 disposed inside the housing 300.

[0068] Furthermore, in some embodiments, the aerosol generating apparatus 1000 may also include an electronic control board 400 and a power supply unit 500, both of which are disposed within the housing 300. The electronic control board 400 is electrically connected to both the heating element 20 and the power supply unit 500. The power supply unit 500 can supply power to the heating element 20 to generate heat, and the electronic control board 400 can control the on / off state of the current so that the heating element 20 can start or stop heating the aerosol generating matrix 200.

[0069] In the aerosol generating apparatus 1000 of this application embodiment, the heating element 20 is embedded in the inner wall 101 of the support tube 10. In this way, compared with the heating element 20 being disposed on the outer wall 103 of the support tube 10, the heat generated by the heating element 20 can act more directly on the aerosol generating matrix 200, reducing the loss of heat generated by the heating element 20 during the transfer process, thereby improving the heating efficiency of the heating component 100. This not only ensures the user's sucking experience but also reduces the energy consumption of the heating component 100.

[0070] In addition, the heating element 20 is embedded in the inner wall 101 of the support tube 10, which can improve the stability of the heating element 20 on the support tube 10, reduce the possibility of deformation of the heating element 20, thereby making the temperature field generated by the heating element 20 more uniform, improving the atomization effect of the aerosol generating matrix 200, and ensuring the user's inhalation experience.

[0071] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A heating assembly, characterized in that, include: A support tube, the inner wall of which forms a receiving cavity for accommodating the aerosol generation matrix; And, a heating element, wherein the heating element is embedded in the inner wall of the support tube.

2. The heating assembly according to claim 1, characterized in that, The material of the support tube has hot-pressing, pneumatic-pressing, or hydraulic-deformation characteristics, and the heating element is embedded in the support tube under pressure. The heating element is flush with the inner wall of the support tube; or, The heating element is partially embedded in the support tube; or... The heating element is completely embedded in the support tube.

3. The heating assembly according to claim 2, characterized in that, The support tube is made of any one of copper, stainless steel and aluminum alloy; the heating element includes a metal heating wire, and an insulating layer is provided between the support tube and the heating element.

4. The heating assembly according to claim 2, characterized in that, The wall thickness of the support tube is 0.02mm-0.30mm.

5. The heating assembly according to claim 2, characterized in that, The support tube includes a body and a mounting part. The inner wall of the body is recessed outward and extends to form the mounting part and the mounting groove, and the mounting groove accommodates the heating element.

6. The heating assembly according to claim 1, characterized in that, The inner wall of the support tube is recessed outward to form a mounting groove, which accommodates the heating element.

7. The heating assembly according to claim 1, characterized in that, The heating assembly also includes: Two end caps, each end cap being connected to one or both ends of the support tube; and A heat insulation element is provided around the outside of the support tube and the end cap. The radial dimension of the end cap is larger than that of the support tube. The heat insulation element abuts against the end cap, and the heat insulation element and the support tube are spaced apart to form a first heat insulation cavity.

8. The heating assembly according to claim 7, characterized in that, The heating assembly also includes: A sealing element is disposed between the heat insulation element and the end cap, and the heat insulation element, the end cap, the support tube and the sealing element seal to form the first heat insulation cavity.

9. The heating assembly according to claim 7, characterized in that, The insulation component also has a second insulation cavity inside.

10. An aerosol generating device, characterized in that, include: The heating assembly and housing according to any one of claims 1-9, wherein the heating assembly is disposed within the housing.

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