Support tube, heating module and aerosol-generating device

Abstract

The application provides a support tube, a heating module and an aerosol generating device. The support tube comprises a first tube segment and a second tube segment connected to each other in the axial direction. The first tube segment is used for accommodating a heating assembly. The second tube segment is used for accommodating at least part of an aerosol generating article. At least part of the inner wall of the second tube segment is recessed along the radial direction outside to form a recessed portion. The inner wall of the recessed portion is spaced apart from the outer peripheral wall of the aerosol generating article, so that heat of the second tube segment cannot be conducted to the aerosol generating article corresponding to the second tube segment, and overheat of the aerosol generating article corresponding to the second tube segment is avoided to affect the taste of a user.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to support tubes, heating modules, and aerosol generation devices. Background Technology

[0002] The heated but non-combustible aerosol generating device includes a heating element and a support tube for housing the aerosol generating product. Since the heated but non-combustible aerosol generating device operates at a high temperature, heat insulation is usually applied to the support tube to prevent the high temperature from being transferred to the outer surface of the device. This is done to retain the heat generated by the heating element in the heating chamber and prevent it from being transferred to the outer surface.

[0003] In traditional heated but non-combustible aerosol generating devices, the heat generated by the heating components is transferred along the inner wall of the support tube to the structural components at both ends of the support tube. This not only leads to heat loss, but may also cause the temperature of the inner wall of the support tube to become too high, resulting in overheating and charring of the aerosol generating product in contact with the support tube.

[0004] Application content

[0005] To solve the problem of overheating and scorching of aerosol products caused by excessively high temperatures on the inner wall of traditional support tubes.

[0006] This application provides a support tube, including a first tube segment and a second tube segment connected to each other in an axial direction. The first tube segment is used to house a heating component, and the second tube segment is used to house at least a portion of an aerosol generating article. The inner wall of at least a portion of the second tube segment is recessed along its radial outer side to form a recessed portion, and the inner wall of the recessed portion is spaced apart from the outer peripheral wall of the aerosol generating article.

[0007] This application provides a support tube, wherein the recess is annular and surrounds the outer periphery of the aerosol-generating article.

[0008] This application provides a support tube, which further includes a straight wall connected to the end of the second tube segment away from the first tube segment, and the straight wall is disposed at the aerosol generating article.

[0009] This application provides a support tube, wherein the extended wall is tubular and surrounds the outer periphery of the aerosol-generating article.

[0010] This application provides a support tube, wherein the extended wall has a single-layer structure.

[0011] This application provides a support tube, which includes an inner tube and an outer tube. The outer tube is sleeved on the outside of the inner tube. A hollow cavity is defined between the outer peripheral wall of the inner tube and the inner peripheral wall of the outer tube. The recess is provided on the inner tube.

[0012] This application provides a support tube, wherein a limiting structure is provided between the first tube segment and the second tube segment, and the limiting structure abuts against at least one of the aerosol generating article and the heating component.

[0013] This application provides a heating module, including:

[0014] Support tube, wherein the support tube is the aforementioned support tube; and

[0015] A heating assembly is disposed within the first section of the support tube.

[0016] This application provides a heating module, wherein the support tube further includes a straight wall, the straight wall being connected to the end of the second tube segment away from the first tube segment, and the straight wall being disposed at the aerosol generating product; the heating module further includes an auxiliary heating element, the auxiliary heating element being disposed on the side of the straight wall opposite to the aerosol generating product.

[0017] This application provides a heating module, wherein the auxiliary heating element is a resistance heating element, an infrared heating element, or an electromagnetic sensor heating element.

[0018] This application provides a heating module, which further includes a bracket. The bracket has a receiving cavity, and the heating component is disposed in the receiving cavity. The bracket is used to support the heating component. The bracket includes a first sidewall and a second sidewall connected to the first sidewall. The first sidewall and the second sidewall form an angle structure and define a clearance space. At least one of the leads of the heating component and the leads of the auxiliary heating element is disposed in the clearance space.

[0019] This application provides a heating module, which further includes a packaging component with positioning feet.

[0020] The bracket is provided with a positioning groove, which is located on the radial outside of the support tube. The positioning foot extends beyond the end of the support tube or passes through the end of the support tube to be inserted into the positioning groove, and the end of the support tube abuts against the positioning foot.

[0021] This application provides a heating module, wherein the heating component is a light heater, an air heater, or a resistance heating needle.

[0022] This application provides a heating module, which further includes a wrapping component located inside the first pipe section and covering the outer periphery of the heating component.

[0023] This application provides a heating module, wherein the package has multiple hollowed-out portions.

[0024] This application provides a heating module, wherein the end of the package facing the second pipe section is provided with a flange, and the flange abuts against the heating component.

[0025] This application provides a heating module, wherein the package includes a first positioning part and a second positioning part, the first positioning part and the second positioning part are distributed along the axial direction of the heating module, and the heating component is located between the first positioning part and the second positioning part.

[0026] This application provides a heating module, wherein the package includes a positioning foot, the positioning foot is inserted into the positioning groove of the bracket, and the support tube abuts against the package; or the package includes a positioning foot, the positioning foot is inserted into the mounting groove of the support tube.

[0027] This application provides a heating module, which further includes a temperature sensing element sandwiched between the outer peripheral wall of the package and the inner peripheral wall of the first pipe section.

[0028] This application provides an aerosol generating apparatus, comprising:

[0029] The housing has an installation cavity inside and an insertion port on the housing for inserting the aerosol-generated product; the heating module is the heating module described above, and the second pipe section of the heating module is connected to the insertion port.

[0030] The second section of the support tube provided in this application has at least a portion of its inner wall recessed along its radial outer side to form a recessed portion. The inner wall of the recessed portion is spaced apart from the outer peripheral wall of the aerosol generating product, so that the heat of the second section is not conducted to the corresponding aerosol generating product, thereby avoiding overheating and scorching of the aerosol generating product corresponding to the second section, which would affect the user's taste. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a schematic diagram of a support tube according to an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of a heating module according to an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of a heating module according to an embodiment of this application;

[0035] Figure 4This is a schematic diagram of a heating assembly according to an embodiment of this application;

[0036] Figure 5 This is a schematic diagram of a heating assembly according to an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of a package and a temperature sensing element according to one embodiment of this application;

[0038] Figure 7 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0039] Figure 8 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0041] Figure 10 This is a schematic diagram of a heating module according to an embodiment of this application;

[0042] Figure 11 This is a schematic diagram of a package according to one embodiment of this application;

[0043] Figure 12 This is a schematic diagram of a heating module according to an embodiment of this application;

[0044] Figure 13 This is a schematic diagram of a package according to one embodiment of this application.

[0045] In the picture:

[0046] 1. Support tube; 11. First tube section; 111. Limiting structure; 12. Second tube section; 121. Recessed part; 13. Straight wall; 14. Inner tube; 141. Hollow cavity; 15. Outer tube;

[0047] 2. Heating component; 21. Light-transmitting cover; 22. Light-emitting element; 23. First lead; 24. Second lead;

[0048] 3. Aerosol generation matrix;

[0049] 4. Auxiliary heating elements;

[0050] 5. Support; 51. Receiving cavity; 52. First sidewall; 53. Second sidewall; 54. Clearance space;

[0051] 6. Package; 61. Cutout section; 62. Flanged edge; 63. First positioning section; 64. Second positioning section; 65. Positioning foot;

[0052] 7. Temperature sensing element; 10. Heating module;

[0053] 20. Outer shell; 201. Mounting cavity; 202. Insertion port;

[0054] 100. 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] This application provides a support tube 1, including a first tube segment 11 and a second tube segment 12 connected to each other in the axial direction. The first tube segment 11 is used to house a heating component 2, and the second tube segment 12 is used to house at least a portion of an aerosol-generating article 3. The heat generated by the heating component 2 can be transferred within the support tube 1, thereby baking the aerosol-generating article 3.

[0060] The aerosol-generating article 3 may be a tobacco-containing material that releases volatile compounds from the matrix upon heating; or it may be a non-tobacco material suitable for heating and producing smoke. The aerosol-generating article 3 may also be 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 aroma compounds to be released when the matrix is ​​heated.

[0061] It should be noted that the aerosol generating product 3 corresponding to the second pipe section 12 is closer to the heating component 2, and the heat is preferentially transferred to the heating component 2, so that the second pipe section 12 can preferentially obtain sufficient heat.

[0062] In related technologies, if the second tube section is in contact with the surface of the aerosol generating product, heat may concentrate at the contact point, causing the aerosol generating product to be over-baked, resulting in scorching or even smoke, which seriously affects the user's inhalation experience.

[0063] Based on this, see Figure 1 As shown, at least a portion of the inner wall of the second tube segment 12 is recessed radially outward to form a recess 121, and the inner wall of the recess 121 is spaced apart from the outer peripheral wall of the aerosol generating product 3. It is understood that by separating the inner wall of the recess 121 from the outer peripheral wall of the aerosol generating product 3, the heat transfer path from the second tube segment 12 to the aerosol generating product 3 can be extended, preventing heat concentration or overheating at the aerosol generating product 3 corresponding to the second tube segment 12, thereby preventing scorching of the aerosol generating product 3, thus ensuring the user's taste and improving the user's inhalation experience.

[0064] In addition, the cavity structure inside the recess 121 can serve as heat insulation, effectively preventing the aerosol generating product 3 corresponding to the recess 121 from heating up too quickly, and slowing down the temperature rise rate of this part of the aerosol generating product 3, so that this part of the aerosol generating product 3 can slowly release aerosol, making the taste of the whole cigarette more consistent.

[0065] In one embodiment of this application, the support tube 1 can be a heat insulation component, so that the heat generated by the heating component 2 can be kept inside the support tube 1 and prevented from being transferred to the outer shell of the aerosol generating device 100. This improves the effective transfer of heat to the aerosol generating article 3, reduces heat loss, and increases heating efficiency.

[0066] In one embodiment of this application, the support tube 1 may include a thermal insulation material. The thermal insulation material refers to a material whose thermal conductivity is less than 100 W / mK at 23°C and 50% relative humidity, preferably less than 40 W / mK or less than 10 W / mK. For example, the thermal insulation material may be made of at least one of PAEK-type materials, PI materials, or PBI materials, wherein PAEK-type materials include PEEK, PEKK, PEKEKK, or PEK materials; the thermal insulation material may also include aerogel.

[0067] In some embodiments, the support tube 1 may include a heat storage material, which refers to a material with a high heat capacity. A material with a high heat capacity may be one with a specific heat capacity of at least 0.5 J / gK at 25°C and constant pressure, for example, at least 0.7 J / gK, or at least 0.8 J / gK. For example, the heat storage material may include, but is not limited to, glass fiber, glass mat, ceramics, silica, alumina, carbon, and ores, or any combination thereof.

[0068] In one embodiment of this application, the recess 121 is annular and surrounds the outer periphery of the aerosol generating article 3. This allows heat to be evenly transferred around the aerosol generating article 3, further preventing heat concentration and improving the baking effect of the aerosol generating article 3.

[0069] In one embodiment of this application, a plurality of recesses 121 are distributed circumferentially along the inner wall of the second pipe section 12, and the plurality of recesses 121 surround the aerosol generating product 3. This can extend the heat transfer path from the second pipe section 12 to the aerosol generating product 3, and prevent local overheating or overbaking of the aerosol generating product 3 corresponding to the second pipe section 12.

[0070] In one embodiment of this application, the support tube 1 may further include a straight wall 13, which is connected to the end of the second tube segment 12 away from the first tube segment 11. The straight wall 13 may be located at the aerosol generating article 3, thus serving as a heat transfer component, allowing heat from the support tube 1 to be conducted to the aerosol generating article 3 via the straight wall 13. In other words, the straight wall 13 can directionally conduct heat from the second tube segment 12, preventing overheating and scorching at the aerosol generating article 3 corresponding to the second tube segment 12, which would affect the user's taste, while also transferring heat to the straight wall 13, which is farther from the heating component 2, thereby improving heat utilization.

[0071] Furthermore, since the heat generated by the heating component 2 is transferred to the aerosol generating product 3 corresponding to the extended wall 13, a long heat conduction path is required. The temperature rise of the aerosol generating product 3 in this part is slow, resulting in a slow smoke emission rate and a small smoke emission amount in this part of the aerosol generating product 3, which is not conducive to the full volatilization of the aerosol generating matrix.

[0072] See Figure 1 As shown, by providing a straight wall 13 at the second pipe section 12 and positioning the straight wall 13 away from the heating component 2, the heat at the second pipe section 12 can be directionally conducted to the straight wall 13, and the heat conducted to the straight wall 13 can be transferred to a portion of the aerosol generating article 3 corresponding to the straight wall 13.

[0073] In this way, the heat at the second pipe section 12 is concentrated and conducted to the straight wall 13, allowing the environment of the aerosol-generating product 3 in this part to heat up rapidly, and ensuring that the aerosol-generating matrix in the aerosol-generating product 3 corresponding to the straight wall 13 is fully heated. Because the aerosol-generating product 3 corresponding to the straight wall 13 receives sufficient heat, the aerosol-generating matrix evaporates rapidly, allowing the user to inhale a rich-tasting aerosol in the first few puffs. Furthermore, part of the heat required to heat the aerosol-generating product 3 corresponding to the straight wall 13 is directionally transferred from the second pipe section 12, thus fully utilizing the heat generated by the heating component 2, ensuring that the portion of the aerosol-generating product 3 far from the heating component 2 is also thoroughly baked, thereby improving the heating efficiency of the heating component 2.

[0074] In one embodiment of this application, at least a portion of the extended wall 13 is in contact with the aerosol generating article 3, allowing heat from the support tube 1 to be conducted to the aerosol generating article 3 at the extended wall 13. This improves the directional heat transfer efficiency, ensuring sufficient heat transfer to the aerosol generating article 3 corresponding to the extended wall 13, thereby increasing heat utilization and ensuring the aerosol generating article 3 corresponding to the extended wall 13 is adequately baked.

[0075] In one embodiment of this application, the straight wall 13 and the aerosol generating article 3 have a certain gap. The gap is small, so that the heat on the straight wall 13 can still be conducted to the aerosol generating article 3. This avoids overheating and scorching at the aerosol generating article 3 corresponding to the second pipe section 12, which would affect the user's taste. At the same time, it can also transfer heat to the straight wall 13, which is farther away from the heating component 2, thereby improving the heat utilization rate.

[0076] In one embodiment of this application, the extended wall 13 is tubular and surrounds the outer periphery of the aerosol generating article 3. The tubular extended wall 13 can transfer heat to the aerosol generating article 3 in all directions.

[0077] In one embodiment of this application, the extended wall 13 consists of a plurality of protrusions distributed circumferentially along the aerosol generating article 3, each protrusion extending from the second pipe section 12 and along the circumferential direction of the second pipe section 12. The plurality of protruding extended walls 13 are disposed around the aerosol generating article 3 and transfer heat to the aerosol generating article 3, and also serve to support the aerosol generating article 3.

[0078] In one embodiment of this application, the straight wall 13 can be a single-layer structure. A single-layer straight wall 13 can be understood as a solid structure constructed from a single layer. This simplifies the structure of the straight wall 13, allowing heat to be directionally conducted to the aerosol generating article 3. Furthermore, the straight wall 13 can have a plate-like structure. For example, the straight wall 13 can be a flat plate; or, for instance, the straight wall 13 can be an arc-shaped plate. The arc-shaped straight wall 13 can match the outer surface of the columnar aerosol generating article 3, and the straight wall 13 can surround the outer periphery of the aerosol generating article 3 using its own arc-shaped structure.

[0079] In one embodiment of this application, the straight wall 13 can be a double-layer structure, comprising an inner layer and an outer layer stacked on top of each other. The inner layer faces the aerosol generating article 3, while the outer layer faces away from the aerosol generating article 3. In this way, the heat generated by the heating component 2 can be transferred to the aerosol generating article 3 through the inner layer of the straight wall, and the outer layer in the double-layer structure can insulate the inner layer, preventing heat transfer to the outer shell 2, thereby reducing the temperature transferred to the surface of the outer shell 2 and improving the user experience.

[0080] In one embodiment of this application, the support tube 1 includes an inner tube 14 and an outer tube 15. The outer tube 15 is sleeved outside the inner tube 14, and a hollow cavity 141 is defined between the outer peripheral wall of the inner tube 14 and the inner peripheral wall of the outer tube 15. Along the axial direction of the support tube 1, the lower end of the inner tube 14 is sealed to the lower end of the outer tube 15, and the upper end of the inner tube 14 is sealed to the upper end of the outer tube 15, thereby defining a closed hollow cavity 141. A recess 121 is provided on the inner tube 141, and the recess 121 is recessed into the hollow cavity 141.

[0081] In one embodiment of this application, a recess 121 may also be provided at the position corresponding to the recess 121 of the outer tube 15 and the inner tube 14, so that the distance between the outer peripheral wall of the inner tube 14 and the inner peripheral wall of the outer tube 15 is approximately equal.

[0082] In one embodiment of this application, the outer tube 15 is not provided with a recess 121, such that the distance between the outer peripheral wall of the inner tube 14 and the inner peripheral wall of the outer tube 15 at the recess 121 is less than the distance between the outer peripheral wall of the inner tube 14 and the inner peripheral wall of the outer tube 15 at the first tube segment 11.

[0083] In one embodiment of this application, the hollow cavity 141 is a gas cavity, where air has a lower thermal conductivity than solid materials, resulting in better thermal insulation. In another embodiment of this application, the hollow cavity 141 is a vacuum cavity, where the thermal conductivity is lower than that of an air cavity, effectively preventing heat transfer from the inner tube 14 to the outer tube 15, thereby achieving better thermal insulation.

[0084] In some embodiments, the straight wall 13 can extend from the upper end of the inner tube 14, so that heat from the inner tube 14 can be transferred to the straight wall 13, thereby facilitating heating of the aerosol-generating article 3 located at the second tube segment 12. In some examples, the straight wall 13 is integrally formed with the inner tube 14, that is, the straight wall 13 and the inner tube 14 are a single component, which simplifies the manufacturing process of the support tube 1.

[0085] See Figure 1 As shown, in one embodiment of this application, a limiting structure 111 is provided between the first pipe segment 11 and the second pipe segment 12. The limiting structure 111 abuts against at least one of the aerosol generating article 3 and the heating assembly 2. The limiting structure 111 protrudes radially inward toward the support pipe 1, and in the axial direction of the support pipe 1, the limiting structure 111 is located between the aerosol generating article 3 and the heating assembly 2. This can separate the aerosol generating article 3 and the heating assembly 2, preventing the aerosol generating article 3 from directly contacting the heating assembly 2, thereby avoiding local overheating of the aerosol generating article 3.

[0086] For example, when the aerosol generating article 3 is inserted into the support tube 1, the limiting structure 111 can stop the aerosol generating article 3 in the insertion direction to prevent the aerosol generating article 3 from being inserted further; similarly, when the heating component 2 is installed into the support tube 1, the limiting structure 111 can also stop the heating component 2 in the insertion direction.

[0087] In one embodiment of this application, the limiting structure 111 can be annular, and the limiting structure 111 surrounds the outer periphery of the aerosol generating article 3, thereby stably limiting at least one of the aerosol generating article 3 and the heating component 2, and effectively preventing the aerosol generating article 3 from contacting the heating component 2.

[0088] In one embodiment of this application, the limiting structure 111 may be a plurality of protrusions distributed circumferentially along the first pipe segment 11 or the second pipe segment 12. The plurality of protrusions are spaced apart in the circumferential direction of the first pipe segment 11 or the second pipe segment 12. At least one of the aerosol generating article 3 and the heating assembly 2 abuts against the plurality of circumferentially distributed, protruding limiting structures 111.

[0089] One embodiment of this application provides a heating module 10, including a support tube 1 and a heating component 2. The support tube 1 is as described above, and the heating component 2 is disposed within a first section 11 of the support tube.

[0090] In one embodiment of this application, the support tube 1 may further include a straight wall 13. The straight wall 13 is connected to the end of the second tube segment 12 away from the first tube segment 11, and the straight wall 13 is disposed at the aerosol generating article 3.

[0091] See Figure 2 As shown, the heating module 10 may further include an auxiliary heating element 4. The auxiliary heating element 4 is located on the side of the extended wall 13 facing away from the aerosol-generated product 3. The auxiliary heating element 4 provides supplementary heating to the aerosol-generated product 3 corresponding to the extended wall 13. The auxiliary heating element 4 can be attached to the surface of the extended wall 13 by means of bonding or snap-fitting.

[0092] In one embodiment of this application, when the extended wall 13 is at least partially in contact with the aerosol generating article 3, the heating power of the auxiliary heating element 4 can be relatively small to meet the need for sufficient heating of the aerosol generating article 3 corresponding to the extended wall 13.

[0093] In one embodiment of this application, when there is a certain gap between the straight wall 13 and the aerosol-generating article 3, it is necessary to set the auxiliary heating element 4 to have a larger heating power, so as to meet the need to fully heat the aerosol-generating article 3 corresponding to the straight wall 13.

[0094] In one embodiment of this application, the auxiliary heating element 4 can be a resistance heating element, an infrared heating element, or an electromagnetic induction heating element. When the auxiliary heating element 4 is a resistance heating element, it directly transfers heat to the aerosol generating article 3 through heat conduction, or through the extended wall 13. When the auxiliary heating element 4 is an infrared heating element, it emits infrared light and then directly heats the aerosol generating article 3 using the infrared light. When the auxiliary heating element 4 is an electromagnetic induction heating element, it receives electromagnetic energy from the electromagnetic coil and then generates heat, which is then directly transferred to the aerosol generating article 3, or through the extended wall 13.

[0095] In some embodiments, the auxiliary heating element 4 can be a heating film structure, which can cover the surface of the straight wall 13, thereby increasing the contact area between the auxiliary heating element 4 and the straight wall 13, so that more heat can be transferred to the straight wall 13.

[0096] See Figure 3 As shown, in one embodiment of this application, the heating module 10 may further include a bracket 5, which has a receiving cavity 51. The heating component 2 is disposed in the receiving cavity 51, and the bracket 5 is used to support the heating component 2.

[0097] In some embodiments, see Figure 9 As shown, the bracket 5 may include a first sidewall 52 and a second sidewall 53 connected to the first sidewall 52. The first sidewall 52 and the second sidewall 53 may surround the outer periphery of the heating component 2, and the first sidewall 52 and the second sidewall 53 form an angle structure and define a clearance space 54. At least one of the leads of the heating component 2 and the leads of the auxiliary heating element 4 is disposed in the clearance space 54.

[0098] In one embodiment of this application, both the first sidewall 52 and the second sidewall 53 can be planar. This creates an angled space between the two planar surfaces, which can serve as a clearance space 54 to accommodate at least one of the leads of the heating component 2 and the auxiliary heating component 4. In this case, the first sidewall 52 and the second sidewall 53 can serve as a protective structure to protect the leads of the heating component 2 or the auxiliary heating component 4.

[0099] In one embodiment of this application, both the first sidewall 52 and the second sidewall 53 can be curved surfaces. In another embodiment, one of the first sidewall 52 and the second sidewall 53 is a flat surface, and the other is a curved surface. The curved surface structure can define a larger storage space, providing more space for the installation, position adjustment, and maintenance of the leads of the heating component 2 or the auxiliary heating component 4. In addition, the curved surface structure can also match the external structure of the aerosol generating device 100, thereby making full use of the internal space of the aerosol generating device 100.

[0100] In one embodiment of this application, the heating component 2 may be an air heating element or a resistance heating needle.

[0101] Of course, the type of heating component 2 is not limited to this. In one embodiment of this application, the heating component 2 is a light heater. Further, as... Figure 4 and Figure 5As shown, the heating assembly 2 may include a light-transmitting cover 21 and a light-emitting element 22. The light-transmitting cover 21 defines the outer surface of the heating assembly 2. The light-transmitting cover 21 is hollow and has a sealed cavity. The light-emitting element 22 is located inside the cavity. The light-emitting element 22 and the light-transmitting cover 21 are non-contact. The light-emitting element 22 is held or soldered to the first lead 23 and the second lead 24, and is supported and guided by the first lead 23 and the second lead 24. The first lead 23 and the second lead 24 pass through the cavity to the light-transmitting cover 21 and are then connected to the circuit board.

[0102] In one embodiment of this application, the light-emitting element 22 is an electroluminescent element capable of emitting light when powered by a circuit board. In one embodiment of this application, the light-emitting element 22 is substantially constructed in the form of a solenoid coil, with the diameters of the first lead 23 and the second lead 24 being larger than the diameter of the conductor material of the light-emitting element 22. In some specific embodiments, the axis of the solenoid coil-type light-emitting element is perpendicular to the longitudinal direction of the aerosol generating article 3 and / or the support tube 1. In one embodiment of this application, the solenoid coil-type light-emitting element has approximately 3-8 windings and a length of approximately 2 mm-5 mm. Furthermore, the conductor material of the light-emitting element 22 has a diameter of approximately 0.05 mm-0.4 mm.

[0103] In some embodiments, such as Figure 4 and Figure 5 As shown, the axis of the solenoid coil can be perpendicular or parallel to the axis of the support tube 1.

[0104] In one embodiment of this application, such as Figure 5 The distance between the light-emitting element 22 and the side of the light-transmitting cover 21 facing the aerosol generating article 3 is L1, which can be 0.5mm-2.0mm. Further, L1 can be 1mm-5mm. In one embodiment of this application, as... Figure 5 The distance between the light-emitting element 22 and the side of the light-transmitting cover 21 opposite to the aerosol-generating product 3 is L2, which can be 2mm-5mm. Further, L2 can be 3mm-8mm.

[0105] In one embodiment of this application, the wire material of the light-emitting element 22 may include tungsten wire, carbon fiber wire, or tin oxide wire, etc. Alternatively, in some other embodiments, the wire material of the light-emitting element 22 is composed of an oxide of at least one metallic element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, or Zn. Or, in some other embodiments, the wire material of the light-emitting element 22 may include a light-emitting metal or alloy, such as an Fe-Mn-Cu alloy. In a specific embodiment, the light-emitting element 22 is a tungsten wire; or, the light-emitting element 22 is composed of a tungsten wire with a purity of 99% or higher.

[0106] In one embodiment of this application, the first lead 23 and the second lead 24 may be made of silver, copper or gold or alloys containing them.

[0107] In one embodiment of this application, the light-transmitting cover 21 can be made of a high-temperature resistant and light-transmitting material such as quartz, glass, ceramic, or mica; preferably, it is a transparent material. For example, a light-transmitting cover made of quartz has a transmittance of more than 90% for the light emitted by the light-emitting element; in a more preferred embodiment, a light-transmitting cover made of high-purity quartz has a transmittance of more than 95% for the light emitted by the light-emitting element. In one embodiment of this application, the light-transmitting cover 21 is cylindrical in shape. In one embodiment of this application, the light-transmitting cover 21 can also be made of high borosilicate glass.

[0108] In one embodiment of this application, when the light-emitting element 22 emits light at an operating temperature of 1500°C-2800°C, the light-transmitting cover 21 absorbs or transfers heat from the light-emitting element 22, thereby achieving a temperature of 300°C-600°C. When the light-transmitting cover 21 reaches the above 300°C-600°C, it can also emit infrared light of a larger wavelength to supplement or assist in heating the aerosol generating product 3. Thus, the aerosol generating matrix of the aerosol generating product 3 can be simultaneously subjected to matched excitation heating by the light excited by the light emitted after the light-transmitting cover 21 is heated, and also subjected to misaligned excitation by the light emitted by the light-emitting element 22, which is more advantageous in terms of heating effect.

[0109] In one embodiment of this application, the heating component 2 is located inside the first pipe section 11. The infrared light generated by the light-emitting element 22 of the heating component 2 can heat the aerosol-generated product 3. The heat on the surface of the light-transmitting cover is transferred to the straight wall 13 through the first pipe section 11 and the second pipe section 12 of the support pipe 1.

[0110] In one embodiment of this application, the heating component 2 and the aerosol generating article 3 are arranged at intervals. In another embodiment of this application, the light-transmitting cover of the heating component 2 may include a protrusion, through which the aerosol generating article 3 contacts the heating component 2.

[0111] In one embodiment of this application, the heating assembly 2 may include an air heating element for heating gas flowing through it, thereby heating the aerosol-generating article 3. The air heating element includes a gas guiding element and a heating element. The gas guiding element supplies gas flow, and the heating element heats the gas guiding element, or the gas guiding element generates its own heat under the action of the heating element, thereby heating the gas flowing through it.

[0112] In one embodiment of this application, the air-conducting element is made of graphite, which has good thermal conductivity, thus improving heating efficiency. In some embodiments, the air-conducting element is made of a graphite alloy, which has good magnetic permeability and high thermal conductivity. The good magnetic permeability allows the heating element to use electromagnetic heating methods other than resistance heating, enabling the air-conducting element to generate heat and increasing the heating options. The high thermal conductivity effectively reduces the time required for the heating element to heat the air-conducting element to a predetermined temperature, thereby improving the heating efficiency of the air heating element.

[0113] In one embodiment of this application, the heating component 2 may include a resistance heating needle, which is inserted into the aerosol generating article 3. The resistance heating needle generates heat by resistance heating and transfers the heat to the aerosol generating article 3.

[0114] In one embodiment of this application, such as Figure 6 As shown, the heating module 10 may also include a wrapping component 6. The wrapping component 6 is located inside the first pipe section 11 and covers the outer periphery of the heating component 2, serving to fix the heating component 2.

[0115] In one embodiment of this application, the wrapping component 6 may have multiple perforated portions 61. The perforated portions 61 may be elongated, extending along the axial direction of the support tube 1, and the multiple perforated portions 61 may be spaced apart along the circumferential direction of the support tube 1. In this case, the wrapping component 6 may have a frame structure, with the frame structure wrapping component 6 surrounding the heating component 2. In one embodiment of this application, the wrapping component 6 may include one of metal, alloy, or other thermally conductive materials, which can improve the thermal conductivity of the wrapping component 6, making the temperature of the outer surface of the wrapping component 6 closer to the temperature of the outer surface of the heating component 2.

[0116] In one embodiment of this application, such as Figure 6 As shown, the heating module 10 may also include a temperature sensing element 7, which is sandwiched between the outer peripheral wall of the wrapping 6 and the inner peripheral wall of the first tube segment 11. The temperature sensing element 7 is used to sense the temperature of the surface of the heating component 2, so as to facilitate the control module to control the temperature of the heating component 2.

[0117] In one embodiment of this application, the end of the package 6 facing the second pipe segment 12 is provided with a flange 62. The flange 62 is folded inward toward the inside of the package 6 and abuts against the heating component 2, facilitating the installation of the heating component 2 into the package 6 from the end away from the flange 62. In one embodiment of this application, the flange 62 is annular, and the annular flange 62 abuts against the heating component 2. In one embodiment of this application, multiple flanges 62 are distributed along the circumferential direction of the package 6, and the multiple flanges distributed along the circumferential direction of the package 6 abut against the heating component 2.

[0118] In one embodiment of this application, such as Figures 10-11 The heating module 10 may further include a wrapping component 6, located between the support tube 1 and the heating assembly 2, for positioning the heating assembly 2. See also Figure 13 As shown, the package 6 can be made of a heat-conducting structure, which can quickly dissipate the temperature of the heating component 2 to improve the heat conduction efficiency of the heating module 10.

[0119] See Figure 10 and Figure 11 As shown, in one embodiment of this application, there are two wrapping components 6, with the heating component 2 located between the two wrapping components 6 to prevent it from slipping off. The two wrapping components 6 are assembled to form a cylindrical structure, which can hold the heating component 2 in place to secure it.

[0120] Combination Figure 11 As shown, in one embodiment of this application, the package 6 may include a first positioning part 63 and a second positioning part 64. The heating component 2 is located between the first positioning part 63 and the second positioning part 64, which are distributed along the axial direction of the heating module 10. This allows the heating component 2 to be positioned in the axial direction, confining it between the first positioning part 63 and the second positioning part 64.

[0121] For example, see Figure 11 As shown, the first positioning part 63 can be disposed at the end of the package 6 facing the aerosol generating article 3, and is used to limit the heating component 2 at the end facing the aerosol generating article 3, preventing the heating component 2 from moving towards the aerosol generating article 3; the second positioning part 64 can be disposed at the end of the package 6 away from the aerosol generating article 3, and is used to limit the heating component 2 at the end away from the aerosol generating article 3. At least one of the first positioning part 63 and the second positioning part 64 can be formed by bending a portion of the structure on the package 6.

[0122] In one embodiment of this application, the package 6 may further include a positioning foot 65. The bracket 5 may include a positioning groove. The positioning groove is located radially outside the support tube 1, and the positioning foot 65 on the package 6 can extend into the positioning groove, so that the package 6 is mounted on the bracket 5, the support tube 1 is located between the bracket 5 and the package 6, and the end of the support tube 1 abuts against the positioning foot 65, that is, the positioning foot 65 crosses or passes through the support tube 1 and engages with the positioning groove on the bracket 5, thereby the package 6 provides a positioning effect for the support tube 1 in the axial direction of the heating module 10.

[0123] In one embodiment of this application, such as Figures 12-13 As shown, the package 6 may include a positioning foot 65. The support tube 1 includes a mounting groove. The positioning foot 65 of the package 6 extends into the mounting groove of the support tube 1, so that the package 6 is positioned on the support tube in the axial direction of the heating module 10.

[0124] like Figures 7-8 As shown, one embodiment of this application provides an aerosol generating apparatus 100, including a housing 20 and a heating module 10. The housing 20 has a mounting cavity 201 and an insertion port 202 for inserting an aerosol-generated article 3. The heating module 10 is as described above, and its second pipe section 12 communicates with the insertion port 202.

[0125] In one embodiment of this application, the aerosol generating apparatus 100 may further include a battery cell and a circuit board. The battery cell provides electrical energy to the heating component 2, and the circuit board is connected to the battery cell. The circuit board is provided with a control circuit for controlling the heating of the aerosol generating product 3.

[0126] In one embodiment of this application, the aerosol generating article 3 has an overall elongated cylindrical structure, for example, constructed to resemble the cylindrical shape of a cigarette. Alternatively, in other variations, the aerosol generating article 3 may be an elongated elliptical cylinder, a square prism, a polygonal prism, etc. In some embodiments, the appearance of the aerosol generating article 3 may mimic the appearance of a conventional lit and smokeable cigarette. The aerosol generating article 3 may have an outer diameter between approximately 5 mm and 12 mm (e.g., between approximately 5 mm and 10 mm). The aerosol generating article 3 has a total length between approximately 40 and 100 mm; in optional embodiments, the aerosol generating article 3 has a total length of approximately 45 to 55 mm.

[0127] In one embodiment of this application, the aerosol generating article 3 includes an aerosol generating matrix; the aerosol generating matrix describes a matrix capable of releasing volatile compounds upon heating, which can form aerosols. The aerosols described herein can be visible or invisible and can include vapors (e.g., fine particles of matter in a gaseous state, which are typically liquid or solid at room temperature) as well as droplets of gas and condensed vapors. The aerosol generating matrix can include one or more of the following: powder, granules, pellets, fragments, strands, strips, or sheets, comprising one or more of the following: dried flowers or leaves, grass leaves, tobacco leaves, tobacco midribs, expanded tobacco, and homogenized tobacco.

[0128] In one embodiment of this application, the aerosol generating article 3 may further include a filter nozzle for filtering and discharging the aerosol; the filter nozzle may typically include a porous material such as cellulose acetate. In some embodiments, when the aerosol generating article 3 is heated within the heating module 10, the filter nozzle is exposed outside the heating module 10, thus facilitating suction for the user.

[0129] It should be noted that the preferred embodiments of this application are given in the specification and 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. A support tube, characterized in that, include: An inner tube and an outer tube, wherein the outer tube is sleeved over the outer side of the inner tube, and a hollow cavity is defined between the outer peripheral wall of the inner tube and the inner peripheral wall of the outer tube; A straight wall is formed by extending one end of the inner tube, and the straight wall is disposed at the aerosol-generating product.

2. The support tube according to claim 1, characterized in that, The extended wall has a single-layer structure.

3. The support tube according to claim 1, characterized in that, The extended wall is tubular and surrounds the outer periphery of the aerosol-generated article.

4. The support tube according to claim 1, characterized in that, The inner tube includes a first tube segment and a second tube segment connected to each other in the axial direction. The first tube segment is used to house a heating component, and the second tube segment is used to house at least a portion of an aerosol-generating article. The inner wall of at least a portion of the second tube segment is recessed along its radial outer side to form a recess, and the inner wall of the recess is spaced apart from the outer peripheral wall of the aerosol-generating article.

5. The support tube according to claim 4, characterized in that, The recess is annular and surrounds the outer periphery of the aerosol-generated product.

6. The support tube according to claim 4, characterized in that, The extended wall is connected to the end of the second pipe segment away from the first pipe segment, and the extended wall is located at the aerosol-generating product.

7. The support tube according to claim 4, characterized in that, A limiting structure is provided between the first pipe segment and the second pipe segment, and the limiting structure abuts against at least one of the aerosol generating product and the heating component.

8. A heating module, characterized in that, include: The support tube is the support tube according to any one of claims 1-7; and A heating assembly is disposed within the first section of the support tube.

9. The heating module according to claim 8, characterized in that, The heating module also includes an auxiliary heating element, which is located on the side of the extended wall opposite to the aerosol-generated product.

10. The heating module according to claim 9, characterized in that, The auxiliary heating element is a resistance heating element, an infrared heating element, or an electromagnetic sensor heating element.

11. The heating module according to claim 9, characterized in that, It also includes a bracket, which has a receiving cavity, and the heating component is disposed in the receiving cavity. The bracket is used to support the heating component. The bracket includes a first sidewall and a second sidewall connected to the first sidewall. The first sidewall and the second sidewall form an angle structure and define an avoidance space. At least one of the leads of the heating component and the leads of the auxiliary heating element is disposed within the clearance space.

12. The heating module according to claim 11, characterized in that, It also includes a package, which is equipped with positioning feet. The bracket is provided with a positioning groove, which is located on the radial outside of the support tube. The positioning foot extends beyond the end of the support tube or passes through the end of the support tube to be inserted into the positioning groove, and the end of the support tube abuts against the positioning foot.

13. The heating module according to claim 8, characterized in that, The heating component is a light heater, an air heater, or a resistance heating needle.

14. The heating module according to claim 8, characterized in that, It also includes a package, which is located inside the first pipe section and covers the outer periphery of the heating assembly.

15. The heating module according to claim 14, characterized in that, The package has multiple cutouts.

16. The heating module according to claim 14, characterized in that, The package has a flanged portion at one end facing the second pipe section, and the flanged portion abuts against the heating component.

17. The heating module according to claim 14, characterized in that, The package includes a first positioning part and a second positioning part, which are distributed along the axial direction of the heating module, and the heating component is located between the first positioning part and the second positioning part.

18. The heating module according to claim 14, characterized in that, It also includes a temperature sensing element, which is sandwiched between the outer peripheral wall of the package and the inner peripheral wall of the first pipe section.

19. An aerosol generating device, characterized in that, include: The outer casing has an internal mounting cavity and an insertion port on the outer casing for inserting aerosol-generated products. A heating module, wherein the heating module is the heating module according to any one of claims 8-16, and the inner tube of the heating module is connected to the insertion port.

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