Aerosol generating device and heating assembly

Abstract

The utility model provides an aerosol generating device and a heating assembly. The aerosol-generating device comprises: a housing; the first bracket is arranged in the shell; one end of the first pipe body is connected with the first support, and a first containing cavity used for containing an aerosol generating product is defined by the first pipe body; the first tube body is sleeved with the heating body, and the heating body is a light-emitting part; one end of the second pipe body is connected with the first support, and the second pipe body is sleeved outside the heating body; wherein the first pipe body comprises a light-transmitting part, the light-transmitting part is arranged corresponding to the heating body, and the heating body heats the aerosol generating product in a heat radiation mode. The first pipe body of the aerosol generating device comprises the light transmitting part, heat generated by heating of the heating body can penetrate through the light transmitting part through heat radiation, so that the aerosol generating product is heated to generate aerosol, the heating body in the aerosol generating device can be heated to a high temperature, and the preheating time before a user smokes is short.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to aerosol generation apparatus and heating components. Background Technology

[0002] In heated non-combustible devices, circumferential heating typically involves a heating element transferring heat to the aerosol-generating product via thermal conduction. The aerosol-generating product generally atomizes at temperatures below 350°C. However, thermal conduction is a relatively inefficient method, requiring the heating element to be kept at a low temperature. Otherwise, the aerosol-generating product may burn, affecting the user's inhalation experience. Furthermore, preheating for at least 20 seconds is necessary before inhalation to ensure rapid smoke emission from the aerosol-generating product. Utility Model Content

[0003] To address the problem of low heat transfer efficiency in circumferential heating methods.

[0004] This application provides an aerosol generating apparatus, comprising:

[0005] case;

[0006] The first bracket is disposed inside the housing;

[0007] A first tube, one end of which is connected to the first support, the first tube defining a first receiving cavity for accommodating the aerosol-generated product.

[0008] A heating element is fitted over the first tube body; the heating element is a light-emitting element.

[0009] The second tube has one end connected to the first bracket and is sleeved on the heating element.

[0010] The first tube includes a light-transmitting portion, which is disposed corresponding to the heating element. The heating element heats the aerosol-generating product through thermal radiation.

[0011] This application provides an aerosol generating device, wherein a reflective layer is provided on the inner or outer surface of the second tube.

[0012] This application provides an aerosol generating device, wherein the second tube is a light-shielding tube.

[0013] This application provides an aerosol generating device, wherein the heating element includes a heating substrate and a conductive pin, the heating substrate is sleeved on a first tube, one end of the conductive pin is connected to the heating substrate, and the other end of the conductive pin extends beyond the end of the first tube.

[0014] This application provides an aerosol generating device, wherein there is a gap between the inner surface of the second tube and the heating substrate;

[0015] Alternatively, there may be a gap between the outer surface of the first tube and the heating substrate.

[0016] This application provides an aerosol generating device, wherein the conductive pin is located on the inner or outer surface of the heating substrate.

[0017] This application provides an aerosol generating device, wherein the surface of the conductive pin is provided with a nickel layer or a silver layer.

[0018] This application provides an aerosol generating device, wherein a second receiving cavity is defined between the inner surface of the second tube and the outer surface of the first tube, and at least one end of the second receiving cavity is an open end in the axial direction of the first tube.

[0019] This application provides an aerosol generating device, wherein the first tube is made of at least one single-crystal or polycrystalline transparent material selected from diamond, spinel, quartz glass, zinc selenide, gallium arsenide, gallium phosphide, zinc selenide, zinc sulfide, and magnesium fluoride; or the first tube is a quartz glass tube or a borosilicate tube.

[0020] This application provides an aerosol generating device, which further includes a second support, the second support being disposed at the other end of the first tube and connected to the other end of the second tube.

[0021] This application provides an aerosol generating device, wherein the second support includes:

[0022] The main body is provided with a plurality of supporting ribs, which are spaced apart along the circumferential direction of the first tube body to support the aerosol-generated product.

[0023] The first support portion is located on one side of the main body portion and is used to support the other end of the first tube body;

[0024] The second support portion is provided on the peripheral wall of the main body portion and is used to support the other end of the second tube body.

[0025] This application provides an aerosol generating device, wherein a first sealing element is provided between the first support portion and the first tube body.

[0026] This application provides an aerosol generating device, wherein the first support includes:

[0027] The limiting member is annular and surrounds the outer periphery of the first receiving cavity. The limiting member has a limiting groove on the side facing the second tube, and one end of the second tube is inserted into the limiting groove.

[0028] The support member is annular and surrounds the outer periphery of the first receiving cavity. One end of the support member is embedded in the limiting groove, and the other end is located outside the limiting groove. The other end of the support member abuts against one end of the first tube body.

[0029] This application provides an aerosol generating device, wherein the first support further includes:

[0030] An adjusting member is disposed within the limiting groove and is used to confine the support member within the limiting groove.

[0031] This application provides an aerosol generating device, wherein a second sealing element is provided between the support member and one end of the first tube.

[0032] This application provides a heating assembly, including:

[0033] A first tube body, the first tube body defining a first receiving cavity for receiving an aerosol-generated article;

[0034] A heating element is fitted over the first tube body; the heating element is a light-emitting element.

[0035] The protective structure includes a first tube body disposed within it, which surrounds the outer periphery of the heating element. The first tube body includes a light-transmitting portion, which is disposed corresponding to the heating element. The heating element heats the aerosol-generating product through thermal radiation.

[0036] The first tube of the aerosol generating device of this application includes a light-transmitting part. The heat generated by the heating element can pass through the light-transmitting part through thermal radiation, thereby heating the aerosol generating product to generate aerosol. In this application, the heating element can be heated to a high temperature, and the preheating time before the user draws in the aerosol is short. Attached Figure Description

[0037] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0038] Figure 1 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0039] Figure 2This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0040] Figure 3 This is a partial enlarged view of an aerosol generating apparatus according to an embodiment of this application;

[0041] Figure 4 This is a partial enlarged view of an aerosol generating apparatus according to an embodiment of this application;

[0042] Figure 5 This is a schematic diagram of a heating element according to an embodiment of this application;

[0043] Figure 6 This is a schematic diagram of the first tube body according to an embodiment of this application.

[0044] In the picture:

[0045] 10. Aerosol generating device;

[0046] 1. Shell;

[0047] 2. First bracket; 21. Limiting component; 211. Limiting groove; 22. Support component; 23. Adjusting component;

[0048] 3. First tube body; 31. First receiving cavity; 32. Light-transmitting part; 33. Second receiving cavity;

[0049] 4. Heating element; 41. Heating substrate; 411. Protective layer; 42. Conductive pin; 421. First conductive pin; 422. Second conductive pin;

[0050] 5. Second tube body; 51. Reflective layer;

[0051] 6. Second support; 61. First support part; 62. Second support part; 63. Main body; 631. Supporting rib;

[0052] 7. First sealing element;

[0053] 8. Second sealing element;

[0054] 20. Aerosol generating device. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0056] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying the quantity or order of the indicated technical features relative to their importance. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0059] One embodiment of this application provides an aerosol generating device 10, including a housing 1, a first support 2, a first tube 3, a heating element 4, and a second tube 5. The first support 2 is disposed inside the housing. One end of the first tube 3 is connected to the first support 2, and the first tube 3 defines a first receiving cavity 31 for accommodating an aerosol generating article 20. The heating element 4 is sleeved on the first tube 3, and the heating element 4 is a light-emitting element. One end of the second tube 5 is connected to the first support 2, and the second tube 5 is sleeved on the heating element 4. The first tube 3 includes a light-transmitting portion 32, which is disposed corresponding to the heating element 4. Light emitted by the heating element 4 passes through the light-transmitting portion 32 in the form of thermal radiation and enters the first receiving cavity 31. The light emitted by the heating element 4 can heat the aerosol generating article 20. That is, the aerosol generating device 10 heats the aerosol generating article 20 by photothermal heating.

[0060] The first tube 3 of the aerosol generating device 10 of this application includes a light-transmitting part 32. The heat generated by the heating element 4 can pass through the light-transmitting part 32 through thermal radiation, thereby heating the aerosol generating product 20 to generate aerosol. In this application, the heating element 4 can be heated to a high temperature, and the preheating time before the user draws in the aerosol is short.

[0061] In one embodiment of this application, the first tube 3 includes a light-transmitting part 32 and an opaque part. The light-transmitting part 32 is disposed corresponding to the heating element 4, and the opaque part can play a supporting role with the structure of the light-transmitting part 32.

[0062] In one embodiment of this application, the first tube 3 is a transparent tube, and the entire first tube 32 is translucent.

[0063] In one embodiment of this application, the first tube 3 may be made of at least one single-crystal or polycrystalline light-transmitting material selected from diamond, spinel, quartz glass, zinc selenide, gallium arsenide, gallium phosphide, zinc selenide, zinc sulfide, and magnesium fluoride. In one embodiment of this application, the first tube 3 is a quartz glass tube or a borosilicate tube. The first tube 3 made of quartz glass can withstand temperatures up to 1000°C or higher, and its infrared transmittance can reach over 90%. Borosilicate is also a high-temperature resistant light-transmitting material.

[0064] In one embodiment of this application, a reflective layer 51 is provided on the inner or outer surface of the second tube 5. The second tube 5 with the reflective layer 51 can reflect the light emitted by the heating element 4 to the aerosol generating article 20, thereby improving energy utilization. In one embodiment of this application, the reflective layer 51 is an aluminum layer, a silver layer, or a chromium layer, which has good light reflection properties.

[0065] In one embodiment of this application, the second tube 5 can also be a transparent tube. A silver layer can be formed on the transparent second tube 5 through a silver mirror reaction, thereby reflecting the light emitted by the heating element 4.

[0066] In one embodiment of this application, when the second tube 5 is quartz glass or borosilicate glass, the reflective layer 51 is disposed on the inner or outer surface of the second tube 5. Since quartz glass has the property of transmitting light, the reflective layer 51 can achieve the effect of reflecting light by being disposed on the inner or outer surface of the second tube 5.

[0067] In one embodiment of this application, the second tube 5 is a light-shielding tube. The light-shielding tube can block light, so that the light reflected by the heating element 4 is not conducted to the outside of the second tube 5, and the light emitted by the heating element 4 is conducted to the housing 1 through thermal radiation, so as to avoid the housing 1 becoming too hot and affecting the user experience.

[0068] Understandably, in some embodiments, the second tube 5 may also have heat insulation and heat preservation properties, so that heat can be concentrated in the first receiving cavity 31, allowing more heat to act on the aerosol-generating product, thereby improving heat transfer efficiency. In some examples, the outer periphery of the second tube 5 may also be provided with aerogel or other structures to achieve the purpose of heat insulation and heat preservation.

[0069] In one embodiment of this application, when the second tube 5 is a light-shielding tube, the reflective layer 51 is disposed on the inner surface of the second tube 5, thereby reflecting light.

[0070] In some embodiments, the thickness of the reflective layer 51 can be 100μm-400μm. For example, the thickness of the reflective layer 51 can be 100μm, 120μm, 150μm, 170μm, 190μm, 200μm, 220μm, 280μm, 300μm or 400μm, etc., or other values ​​within the above range, which are not limited here.

[0071] Understandably, by setting the reflective layer 51, most of the energy generated by the heating element 4 is concentrated in the form of infrared light at the aerosol generating product 20. Therefore, the energy utilization rate of the reflective layer 51 is high. At the same time, this structure can play an effective role in heat insulation, preventing other components located on the outer periphery of the reflective layer 51 from overheating.

[0072] In one embodiment of this application, the heating element 4 may further include a heating base 41 and a conductive pin 42. The heating base 41 is sleeved on the first tube 3, one end of the conductive pin 42 is connected to the heating base 41, and the other end of the conductive pin 42 extends beyond the end of the first tube 3.

[0073] In one embodiment of this application, the heating substrate 41 includes an iron-carbon alloy, stainless steel, an iron-chromium-nickel alloy, an iron-chromium-aluminum alloy, a nickel-chromium alloy, or a titanium alloy.

[0074] In one embodiment of this application, the heating substrate 41 is an etched annular metal mesh. Compared to a sheet metal mesh that is wound, the etched annular metal mesh has a more defined shape and is easier to fit into the first receiving cavity 31 formed by the first tube 3 and the second tube 5.

[0075] In one embodiment of this application, the conductive pin 42 is in the form of a sheet, which can fix the bending direction of the conductive pin 42 when bent, reducing the assembly tolerance of the heating element 4. In addition, when the sheet-like conductive pin 42 is welded to the heating substrate 41, the welding area can be increased, thereby improving the connection strength between the heating substrate 41 and the conductive pin 42.

[0076] In one embodiment of this application, the conductive pin 42 is located on the inner or outer surface of the heating substrate 42, resulting in a larger contact area and lower contact resistance between the conductive pin 42 and the heating substrate 41. In another embodiment, the conductive pin 42 is located on the inner surface of the heating substrate 41, making it easier to control the distance between the heating element 4 and the first tube 3 during the fabrication of the heating element 4, thus maintaining a certain gap between them. In yet another embodiment, the conductive pin 42 is located on the outer surface of the heating substrate 41, allowing the heating substrate 41 to be attached to the first tube 3.

[0077] In one embodiment of this application, the conductive pin 42 includes a first conductive pin 421 and a second conductive pin 422. The first conductive pin 421 and the second conductive pin 422 are evenly distributed in the circumferential direction of the heating substrate 41, so that the area of ​​the metal mesh located between the first conductive pin 421 and the second conductive pin 422 is substantially the same. Consequently, the resistance between the portions of the metal mesh separated by the first conductive pin 421 and the second conductive pin 422 is substantially the same, which allows the heating substrate 41 to heat up uniformly.

[0078] In one embodiment of this application, the heating substrate 41 has a TCR effect, which refers to the temperature coefficient of resistance effect, that is, the degree to which the resistance of a thin film resistor changes with temperature. Since the heating substrate 41 has TCR characteristics, the temperature of the heating substrate 41 can be reflected based on its resistance, thus eliminating the need for a temperature measuring element.

[0079] In one embodiment of this application, the outer surface of the heating substrate 41 is covered with a protective layer 411, which makes the heating substrate 41 less prone to oxidation and other reactions during the heating process, and avoids the heating substrate 41 from deteriorating after heating and affecting the subsequent heating effect.

[0080] In one embodiment of this application, the protective layer 411 can be an oxide layer or an enamel layer. This can make the heating substrate 41 stable, thereby emitting a stable light source, and further enabling the heating element 4 to have stable heating characteristics.

[0081] In one embodiment of this application, a gap exists between the inner surface of the second tube 5 and the heating substrate 41. This provides better heat insulation between the heating substrate 41 and the second tube 5, reducing the possibility of the second tube 5 conducting heat to other non-heated areas. In one embodiment of this application, the distance between the heating substrate 41 and the second tube 5 is 0.05mm-1mm. In another embodiment of this application, the distance between two heating substrates 41 can be 0.05mm, 0.1mm, 0.2mm, 0.5mm, 0.8mm, or 1mm.

[0082] In one embodiment of this application, there is a gap between the outer surface of the first tube 3 and the heating substrate 41.

[0083] In one embodiment of this application, a nickel layer or a silver layer is disposed on the surface of the conductive pin 42. The nickel layer or silver layer has good conductivity, which can reduce the contact resistance between the conductive pin 42 and the battery assembly, thereby making the conductive pin 42 have good conductivity.

[0084] In one embodiment of this application, a second receiving cavity 33 is defined between the inner surface of the second tube 5 and the outer surface of the first tube 3. In the axial direction of the first tube 3, at least one end of the second receiving cavity 33 is an open end, which facilitates the installation of the heating element 4 to the first tube 3 and facilitates the lead-out of the conductive pin 42.

[0085] In one embodiment of this application, the aerosol generating device 10 further includes a second support 6, which is disposed at the other end of the first tube 3 and connected to the other end of the second tube 5.

[0086] See Figure 4 As shown, in one embodiment of this application, the second support 6 may include a main body 63, a first support 61, and a second support 62. The main body 63 is provided with a plurality of support ribs 631, which are spaced apart along the circumferential direction of the first tube 3 to support the aerosol generating product 20. Thus, by providing the support ribs 631, the aerosol generating product 20 can be separated from the main body 63, allowing airflow to enter the aerosol generating product 20 from its bottom. The first support 61 is located on one side of the main body 63 and is used to support the other end of the first tube 3. The second support 62 is located on the peripheral wall of the main body 63 and is used to support the other end of the second tube 5.

[0087] In one embodiment of this application, a first sealing member 7 is provided between the first supporting part 61 and the first tube body 3. The first sealing member 7 can buffer the first supporting part 61 and the first tube body 3. The first sealing member 7 can seal the end of the second receiving cavity 33 to prevent airflow or smoke from entering the second receiving cavity 33.

[0088] Combination Figure 3As shown, in one embodiment of this application, the first support 2 may include a limiting member 21 and a supporting member 22. The limiting member 21 is annular and surrounds the outer periphery of the first receiving cavity 31. Thus, the aerosol-generating article 20 can pass through the central space of the limiting member 21 and enter the first receiving cavity 31. The limiting member 21 has a limiting groove 211 on the side facing the second tube 5, and one end of the second tube 5 is inserted into the limiting groove 211. The supporting member 22 is annular and surrounds the outer periphery of the first receiving cavity 31. Thus, the supporting member 22 can support the first tube 3. Specifically, one end of the supporting member 22 is embedded in the limiting groove 211, and the other end is located outside the limiting groove 211, with the other end of the supporting member 22 abutting against one end of the first tube 3. It should be noted that the limiting groove 211 can limit the position of the supporting member 22, preventing the supporting member 22 from deviating from its installation position.

[0089] In one embodiment of this application, the first bracket 2 further includes an adjusting member 23, which is disposed within a limiting groove 211 and is used to confine the support member 22 within the limiting groove 211. The adjusting member 23 can adjust the assembly gap between the support member 22 and the limiting member 21 to prevent relative movement between the support member 22 and the limiting member 21, while also ensuring that the support member 22 is stably and reliably assembled within the limiting groove 211.

[0090] In one embodiment of this application, a second sealing member 8 is provided between the support member 22 and one end of the first tube 3. The second sealing member 8 can seal the end of the second receiving cavity 33 to prevent airflow or smoke from entering the second receiving cavity 33. In some embodiments, at least one of the first sealing member 7 and the second sealing member 8 can be a silicone part or a high-temperature resistant rubber part.

[0091] One embodiment of this application proposes a method of heating rather than burning an aerosol-generating article 20, such as a cigarette, thereby causing at least one component of the aerosol-generating article 20 to volatilize or be released to form an aerosol for inhalation.

[0092] In optional embodiments, the aerosol generating article 20 preferably uses a tobacco-containing material from which volatile compounds are released from the matrix upon heating; or it may be a non-tobacco material suitable for electrically heated smoking. The aerosol generating article 20 preferably uses a solid matrix, which may include one or more of the following: vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, powder, granules, fragments, strips, or sheets; or the solid matrix may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the matrix is ​​heated.

[0093] When the aerosol generating article 20 is received by the aerosol generating device 10, it is advantageous for a portion of it, such as a filter tip, to be exposed outside the aerosol generating device 10 for the user to inhale.

[0094] One embodiment of this application provides a heating assembly, including a first tube 3, a heating element 4, and a protective structure. The first tube 3 defines a first receiving cavity 31 for accommodating an aerosol-generating article 20; the heating element 4 is sleeved on the first tube and is a light-emitting element. The first tube 3 is disposed within the protective structure, which surrounds the outer periphery of the heating element 4. The first tube 3 includes a light-transmitting portion 32, which is disposed corresponding to the heating element 4. The heating element 4 heats the aerosol-generating article 20 through thermal radiation.

[0095] In one embodiment of this application, the protective structure includes a first support 2 and a second tube 5, the first support 2 is connected to one end of the first tube 3 and one end of the second tube 5, and the second tube 5 is sleeved on the heating element 4.

[0096] In one embodiment of this application, the second tube 5 is a light-shielding tube. The light-shielding tube can block light, so that the light reflected by the heating element 4 is not conducted to the outside of the second tube 5, and the light emitted by the heating element 4 is conducted to the housing 1 through thermal radiation, so as to avoid the housing 1 becoming too hot and affecting the user experience.

[0097] In one embodiment of this application, a second receiving cavity 33 is defined between the inner surface of the second tube 5 and the outer surface of the first tube 3. In the axial direction of the first tube 3, at least one end of the second receiving cavity 33 is an open end, which facilitates the installation of the heating element 4 to the first tube 3 and facilitates the lead-out of the heating element 4.

[0098] In one embodiment of this application, the heating assembly further includes a second support 6, which is disposed at the other end of the first tube 3 and connected to the other end of the second tube 5. In one embodiment of this application, the aerosol generating device 10 is generally configured in a longitudinally elongated shape, and the aerosol generating device 10 includes:

[0099] The housing 1 basically defines the outer surface of the aerosol generating device 10, and has a proximal end and a distal end opposite each other along the length direction; in use, the proximal end is the end that is close to the user for easy operation of containing and aspirating the aerosol generating product; the distal end is the end that is far away from the user.

[0100] In some examples, the housing 1 may be formed of a metal or alloy such as stainless steel or aluminum. Other suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, and so on.

[0101] The aerosol generating device 10 also includes circuitry and a charging interface. In some embodiments of this application, the battery assembly, circuitry, and charging interface are integrated into one unit, making the aerosol generating device 10 a typical integrated device.

[0102] The circuit controls the overall operation of the aerosol generating device 10. Specifically, the circuit controls not only the operation of the battery assembly and the heating element 4, but also the operation of other components within the aerosol generating device 10. Furthermore, the circuit can determine whether the aerosol generating device 10 is operational by checking the status of its components.

[0103] The circuit includes at least one control unit. The control unit may be, but is not limited to, a combination of a microcontroller and a memory for storing executable programs in the microcontroller, the memory being integrated into the microcontroller or independent of the microcontroller.

[0104] The battery assembly provides power for operating the aerosol generating device 10. For example, the battery assembly can provide power to heat the heating element 4 and can provide the power required to operate the circuitry. In addition, the battery assembly can provide the power required to operate the sensors, motors, etc. provided in the aerosol generating device 10.

[0105] The battery assembly can be, but is not limited to, lithium iron phosphate (LiFePO4) cells. For example, the battery assembly can be lithium cobalt oxide (LiCoO2) cells or lithium titanate cells. The battery assembly can be a rechargeable cell.

[0106] The charging interface, when electrically connected to an external power source (e.g., an external power adapter inserted into the charging interface), outputs a certain charging voltage to the battery pack to charge it. Once charging is complete, the electrical connection between the charging interface and the external power source can be disconnected, i.e., the external power adapter can be unplugged from the charging interface.

[0107] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating device, characterized by, The shell comprises: a first support arranged in the shell; a first tube body, one end of which is connected to the first support, the first tube body defining a first accommodation cavity for accommodating an aerosol generating article; a heating body, which is a light emitting element, sheathed on the first tube body; a second tube body, one end of which is connected to the first support, and the second tube body is sheathed on the heating body; wherein the first tube body comprises a light transmission portion arranged corresponding to the heating body, and the heating body heats the aerosol generating article in the form of heat radiation. The inner surface or the outer surface of the second tube body is provided with a reflective layer.

2. The aerosol-generating device of claim 1, wherein, The second tube body is a light shielding tube.

3. The aerosol-generating device of claim 1, wherein, The heating body comprises a heating base and a conductive pin, the heating base is sheathed on the first tube body, one end of the conductive pin is connected to the heating base, and the other end of the conductive pin is arranged beyond the end of the first tube body.

4. The aerosol-generating device of claim 1, wherein, There is a gap between the inner surface of the second tube body and the heating base.

5. The aerosol-generating device of claim 4, wherein, Or there is a gap between the outer surface of the first tube body and the heating base. The conductive pin is located on the inner surface or the outer surface of the heating base.

6. The aerosol-generating device of claim 4, wherein, The surface of the conductive pin is provided with a nickel layer or a silver layer.

7. The aerosol-generating device of claim 4, wherein, The inner surface of the second tube body and the outer surface of the first tube body define a second accommodation cavity, and at least one end of the second accommodation cavity is an open end in the axial direction of the first tube body.

8. The aerosol-generating device of claim 1, wherein, Further comprising a second support, the second support is arranged at the other end of the first tube body, and the second support is connected to the other end of the second tube body.

9. The aerosol-generating device of any of claims 1-8, wherein, The second support comprises: 10.The aerosol-generating device of claim 9, wherein, a main body portion, a plurality of support ribs are arranged on the main body portion, the plurality of support ribs are distributed along the circumferential direction of the first tube body, and are used for supporting the aerosol generating article; a first supporting portion arranged on one side of the main body portion and used for supporting the other end of the first tube body; a second supporting portion arranged on the peripheral wall of the main body portion and used for supporting the other end of the second tube body. A first sealing member is arranged between the first supporting portion and the first tube body. 11.The aerosol-generating device of claim 10, wherein, The first support comprises: 12.The aerosol-generating device of claim 1, wherein, a limiting member in the shape of a ring and surrounding the outer periphery of the first accommodation cavity, one side of the limiting member facing the second tube body is provided with a limiting groove, and one end of the second tube body is inserted into the limiting groove; a support member in the shape of a ring and surrounding the outer periphery of the first accommodation cavity, one end of the support member is embedded in the limiting groove, the other end of the support member is located outside the limiting groove, and the other end of the support member abuts against one end of the first tube body. The first support further comprises:

13. The aerosol-generating device of claim 12, wherein, an adjusting member arranged in the limiting groove and used for limiting the support member in the limiting groove. A second sealing member is arranged between the support member and one end of the first tube body.

14. The aerosol-generating device of claim 13, wherein, The shell comprises:

15. A heating assembly, characterized by a first tube body defining a first accommodation cavity for accommodating an aerosol generating article; a heating body, which is a light emitting element, sheathed on the first tube body; ​ A protection structure in which the first tube body is disposed, the protection structure surrounding an outer periphery of the heat generating body, the first tube body including a light-transmissive portion corresponding to the heat generating body, the heat generating body heating the aerosol generating article in the form of heat radiation.

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