Aerosol generating device and heating assembly

Abstract

The utility model relates to an aerosol generating device and a heating assembly, and the heating assembly comprises a tube body which is provided with a tube opening at one end; at least part of the fixing piece is installed in the pipe body from the pipe opening, the fixing piece is provided with a fixing hole, and the fixing hole penetrates through the fixing piece in the axial direction of the fixing piece; the heating element is at least partially arranged in the pipe body and comprises a supporting body and a heating part, the heating part is at least partially arranged on the periphery of the supporting body, and the supporting body is partially inserted into the fixing hole and is matched and fixed with the fixing hole so that the heating element can be fixed in the pipe body. According to the heating assembly, the fixing piece is installed in the pipe body from the pipe opening, the fixing hole penetrating through the fixing piece in the axial direction of the fixing piece is formed in the fixing piece, the supporting body part of the heating element is inserted into the fixing hole to be matched and fixed with the fixing hole, and therefore the heating element can be fixed in the pipe body through the fixing piece. The stability of the heating element is improved, so that when the aerosol generating device falls, the deformation quantity and the offset quantity of the heating element are reduced.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol generation device and a heating component. Background Technology

[0002] Related aerosol generating devices generally use HNB needle-type heating elements. This heating element requires a fixing component to support the heating element inside. If it falls to the ground during use, the internal heating element may shift significantly from the fixing component, impacting the heating element tube and causing it to crack or break. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an improved heating component, and further to provide an improved aerosol generating device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a heating component, including:

[0005] A tube body, with a nozzle at one end;

[0006] The fastener is at least partially installed in the pipe body from the pipe opening and has a fixing hole that penetrates the fastener along its axial direction.

[0007] A heating element, at least partially disposed in the tube body, includes a support body and a heating part. The heating part is at least partially disposed on the outer periphery of the support body. The support body is partially inserted into the fixing hole and is fixed in cooperation with the fixing hole so that the heating element is fixed in the tube body.

[0008] In some embodiments, the support includes a main body for housing the heating element and a plug-in portion disposed at one end of the main body and engaging with the fixing hole; the plug-in portion is fixed by engaging with the fixing hole.

[0009] In some embodiments, at least a portion of the plug portion fits into the wall of the fixing hole without clearance.

[0010] In some embodiments, the minimum gap between the outer wall of the insertion part and the wall of the fixing hole is 0 to 0.03 mm.

[0011] In some embodiments, the length of the insertion portion into the fixing hole is 1mm to 3mm.

[0012] In some embodiments, a high-temperature resistant adhesive structure is provided between at least a portion of the outer wall of the insertion part and the wall of the fixing hole.

[0013] In some embodiments, a limiting portion is provided at the end of the insertion portion away from the main body portion; the cross-sectional dimension of the limiting portion is larger than the cross-sectional dimension of the insertion portion.

[0014] The limiting part fits the wall of the fixing hole without any clearance.

[0015] In some embodiments, the heating element is spiral-shaped, and the end of the heating element away from the tube opening is electrically connected to the support.

[0016] In some embodiments, two conductive connectors are also included;

[0017] One of the conductive connectors is connected to the support body, and the other conductive connector is connected to the heating element, with both conductive connectors extending out of the tube body from the fixing member.

[0018] This invention also provides an aerosol generating device, including the heating component described in this invention and a power supply component electrically connected to the heating component.

[0019] The aerosol generating device and heating component of this utility model have the following beneficial effects: The heating component is installed in the tube body from the pipe opening by a fixing member with a fixing hole that passes through the fixing member along the axial direction of the fixing member. The supporting part of the heating element is inserted into the fixing hole and fixed in cooperation with the fixing hole. Thus, the heating element can be fixed in the tube body by the fixing member, which improves the stability of the heating element. When the aerosol generating device is dropped, the deformation and offset of the heating element are reduced, thereby reducing the impact of the heating element on the tube body, avoiding cracking or breakage of the tube body, and improving the drop deformation of the heating component. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the heating component structure of the aerosol generating device in the first embodiment of this utility model;

[0022] Figure 2 yes Figure 1 A cross-sectional view of the heating component shown;

[0023] Figure 3 yes Figure 2 A partial structural exploded view of the heating element shown.

[0024] Figure 4 yes Figure 3 A partial structural exploded view of the heating element shown.

[0025] Figure 5 yes Figure 3An exploded view of another part of the heating component shown.

[0026] Figure 6 yes Figure 5 An exploded view of the heating element and fixing components of the heating assembly shown.

[0027] Figure 7 yes Figure 6 A schematic diagram of the fixing structure of the heating component shown;

[0028] Figure 8 This is a schematic diagram of the heating component structure of the aerosol generating device in the second embodiment of this utility model. Detailed Implementation

[0029] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "upper," "longitudinal," "horizontal," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0030] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. When a component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components.

[0031] Figure 1 The first embodiment of the aerosol generating device of this utility model is shown. The aerosol generating device can heat the aerosol generating matrix by heating without combustion. In some embodiments, the aerosol generating matrix can be columnar, and can be a solid material made of plant (e.g., tobacco) leaves and / or stems in the form of strips, granules, flakes, or integral molding, and aroma components can be further added to the solid material.

[0032] In this embodiment, the aerosol generating device may include a heating component 1 and a power supply component (not shown). The heating component 1 may be at least partially inserted into the aerosol generating matrix and heat the aerosol generating matrix by radiating infrared light, thereby generating aerosols for the user to inhale. The power supply component (not shown) is connected to the heating component to supply power to the heating component.

[0033] like Figures 1 to 3 As shown, in this embodiment, the heating component 1 may include a heating structure 10 and a mounting base 20. The heating structure 10 can be mounted on the mounting base 20, and it may be generally columnar, partially inserted into the aerosol generating matrix and heated by radiating infrared light. The mounting base 20 can support and fix the heating structure 10.

[0034] like Figure 4 As shown, in this embodiment, the heating structure 10 may include a tube 11. In this embodiment, the tube 11 may be a quartz glass tube. Of course, it is understood that in some other embodiments, the tube 11 is not limited to an infrared-transmitting quartz tube, but may be other window materials that allow infrared light waves to pass through, such as transparent ceramics, diamond, etc.

[0035] In this embodiment, the tube 11 may be cylindrical with a generally circular cross-section. The tube 11 may include a cylindrical body 111 and a pointed tip 113, and one end of the tube 11 has an opening 112. Specifically, the cylindrical body 111 may be cylindrical and hollow. The opening 112 may be provided at one end of the cylindrical body 111. It is understood that in some other embodiments, the cylindrical body 111 is not limited to a cylindrical shape, but may be cuboid, flat, or other shapes. The pointed tip 113 is located at the end of the cylindrical body 111 away from the opening 112. The pointed tip 113 facilitates at least a portion of the heating structure 10 being inserted into the aerosol generating matrix. The pointed tip 113 may be conical or arc-shaped. In some embodiments, a cavity 114 is formed inside the tube 11. This cavity 114 is a cylindrical cavity and may be non-sealed. Specifically, the cavity 114 may communicate with the opening 112.

[0036] like Figure 5 and Figure 6 As shown, in this embodiment, the heating structure 10 further includes a heating element 12, which is at least partially disposed in the tube body 11. Specifically, the heating element 12 can penetrate into the tube body 11 from the opening 112 and can be partially located in the cavity 114. The heating element 12 is used to generate heat and radiate infrared light, which passes through the tube wall of the tube body 11 and enters the aerosol generating matrix.

[0037] In this embodiment, the heating element 12 may include a heating part 121 and a support body 122. In this embodiment, the heating part 121 is at least partially disposed on the outer periphery of the support body 122; specifically, the heating part 121 may be arranged around the outer periphery of the support body 122. The heating part 121 may be spaced apart from at least a portion of the inner wall of the tube 11, thereby facilitating rapid heating without scorching and preventing excessively high temperatures of the heating part 121 from adversely affecting the tube 11. The support body 122 may be located at the central axis of the heating part 121. The support body 122 serves to support or reinforce the heating part 121.

[0038] In this embodiment, the heating element 121 can be formed by bending or winding a longitudinally elongated heating body 1211 around the outer periphery of the support 122. The heating element 121 can be generally spiral-shaped. Of course, it is understood that in some other embodiments, the heating element 121 is not limited to a spiral shape; it can also be columnar or cylindrical with a hollow structure. In this embodiment, the heating body 1211 forming the heating element 121 is a heating body capable of radiating infrared light waves, which may include a heating substrate and a heat radiation layer disposed on the heating substrate. The heating substrate can generate heat when energized. The heating substrate can be a metal cylinder or a metal wire, and can be a metallic material with good high-temperature oxidation resistance, high stability, and resistance to deformation, such as nickel-chromium alloy (e.g., nickel-chromium alloy wire) or iron-chromium-aluminum alloy (e.g., iron-chromium-aluminum alloy wire). The heat radiation layer can be an infrared layer. The infrared layer can be formed on the heating substrate by an infrared layer forming substrate under high-temperature heat treatment, and can radiate infrared light. The infrared layer forming substrate can be silicon carbide, spinel, or a composite substrate thereof. Understandably, in some other embodiments, the thermal radiation layer is not limited to an infrared layer. In some other embodiments, the thermal radiation layer may be a composite infrared layer.

[0039] In this embodiment, the end of the heating element 121 away from the opening 112 can be connected to the support body 122. Further, the end of the heating element 121 away from the opening 112 can be mechanically and electrically connected to the support body 122. Specifically, the end of the heating element 121 away from the opening 112 can be connected to the end of the support body 122 facing the pointed tip 113, or to a section of the sidewall of the support body 122 near the pointed tip 113. The heating element 121 and the support body 122 can be fixed together by welding, forming an integral structure for easy assembly.

[0040] In some other embodiments, the heating element 121 and the support 122 may also be integrally formed, and a heating element 1211 may be bent to form it.

[0041] In this embodiment, the support 122 may be generally columnar, and its rigidity may be greater than that of the heating element 1211. The support 122 may include a main body 1221 and a connector 1222. The main body 1221 may be disposed around the heating element 121. The axial length of the main body 1221 may be adapted to the axial length of the heating element 121, and may be slightly longer than the axial length of the heating element 121, and may slightly protrude from both ends of the heating element 121. The connector 1222 may be disposed at one end of the main body 121, and may be integrally formed with the main body 121, and the two may be a single piece. The connector 1222 may be used for insertion and fixation of the support 122.

[0042] In this embodiment, a limiting portion 1223 is provided at the end of the plug portion 1222 away from the main body portion 1221. The limiting portion 1223 can be used to limit the installation of the limiting portion 1223 on the support body 1222. In some embodiments, the cross-sectional dimension of the limiting portion 1223 may be larger than the cross-sectional dimension of the plug portion 1222. Generally, the cross-section of the plug portion 1222 may be approximately circular, the cross-section of the limiting portion 1223 may be approximately circular, and the outer diameter of the limiting portion 1223 may be larger than the outer diameter of the plug portion 1222. In some other embodiments, the cross-section of the plug portion 1222 may also be square, and the cross-section of the limiting portion 1223 may also be circular or square, and the outer diameter or width of the cross-section of the limiting portion 1223 may be larger than the width of the cross-section of the plug portion 1222.

[0043] In this embodiment, the insertion portion 1222 and the limiting portion 1223 are integrally formed. Generally, the limiting portion 1223 can be formed by increasing the radial dimension of one end of the insertion portion 1222. In some embodiments, the outer diameter of the insertion portion 1222 can be 0.5 mm, and the outer diameter of the limiting portion 1223 can be 0.55 mm. In other embodiments, the limiting portion 1223 and the insertion portion 1222 can also be separate structures, and they can also be connected by a connecting structure, which can be a snap-fit ​​structure or a screw-in structure. In some embodiments, the limiting portion 1223 can also be omitted.

[0044] like Figure 6 and Figure 7As shown, in this embodiment, the heating structure 10 further includes a fixing member 13, which is at least partially installed in the tube body 11 from the opening 112. Specifically, the fixing member 13 may be columnar and may be longitudinally arranged along the length of the tube body 11. The fixing member 13 may be coaxially arranged with the tube body 11, and its axial length is less than the length of the tube body 11. One end of the fixing member 13 may be spaced apart from the tip 113 of the tube body 11, and the length of this gap is greater than the axial length of the heating part 121 of the heating element 12. The other end of the fixing member 13 may protrude from the opening 112 or be flush with the opening 112. In this embodiment, the outer wall of the fixing member 13 may be fitted with the inner wall of the tube body 11 without clearance; specifically, the fixing member 13 may be fixed to the tube body 11 by an interference fit. In some other embodiments, the fixing member 13 and the inner wall of the tube body 11 may also be bonded together by an adhesive structure. In this embodiment, the fixing member 13 can be an insulating tube, such as a ceramic tube, a quartz tube, or a high-temperature resistant plastic tube.

[0045] In this embodiment, the fixing member 13 has a fixing hole 131, which is provided through the fixing member 13 along its axial direction. The fixing hole 131 is coaxial with the tube body 11. The fixing hole 131 can be used to install and fix the support body 122 of the heating element 12. Generally, the support body 122 can be partially inserted into the fixing hole 131 and fixed with the fixing hole 131. For example, the two can achieve tight contact through an interference fit, so that the heating element 12 can be fixed in the tube body 11, thereby improving the stability of the heating element 12. When the aerosol generating device is dropped, the deformation and movement of the heating element 12 are reduced, thereby reducing the impact of the heating element 12 on the tube body 11 and improving the drop deformation of the heating assembly.

[0046] Specifically, the insertion portion 1222 of the support body 122 can be inserted into the fixing hole 131 and fixed in place with the fixing hole 131, for example, the two can achieve tight contact through an interference fit. The length H of the insertion portion 1222 inserted into the fixing hole 131 can be 1mm to 3mm. By selecting this insertion length, on the one hand, it is ensured that the support body 122 has a good supporting effect on the entire heating element 12; on the other hand, the length H of the insertion portion 1222 inserted into the fixing hole 131 is less than 3mm (including both ends), which can reduce the conduction of heat to the end of the fixing hole 131 away from the tip 113. In some embodiments, the support body 122 can be integrally sintered and fixed with the fixing member 13.

[0047] Furthermore, at least a portion of the insertion part 1222 can be fitted with the wall of the fixing hole 131 without clearance. In this embodiment, the insertion part 1222 can be interference-fitted with the fixing hole 131, and its outer wall can be in close contact with the inner wall of the fixing hole 131. The minimum gap between the outer wall of the insertion part 1222 and the wall of the fixing hole 131 can be 0 to 0.03 mm (including the values ​​at both ends). That is, there can be no gap or a sufficiently small gap between the outer wall of the insertion part 1222 and the wall of the fixing hole 131 to avoid energy leakage and to enhance the fixing effect.

[0048] In some other embodiments, at least a portion of the outer wall of the plug portion 1222 may be provided with a high-temperature adhesive structure between the outer wall of the fixing hole 131 and the hole wall. The adhesive structure may be a colloidal structure (such as an inorganic adhesive that can withstand temperatures greater than 500°C), which can fill the gap between the plug portion 1222 and the fixing hole 131. The plug portion 1222 and the hole wall of the fixing hole 131 are bonded and fixed by the adhesive structure, which improves the stability of the assembly of the support 122 and the fastener 13. Furthermore, by selecting an adhesive with strong high-temperature resistance, the high temperature of the heating element 12 can prevent the adhesive from being burned.

[0049] In some other embodiments, the insertion part 1222 can be clearance-fitted with the fixing hole 131, while the limiting part 1223 is clearance-free-fitted with the hole wall of the fixing hole 131. The limiting part 1223 can be interference-fitted with the fixing hole 131 for fixation, and its outer diameter can be adapted to the hole diameter of the fixing hole 131, thereby playing the role of limiting and fixing the support 122 and the fixing member 13.

[0050] In this embodiment, the outer wall of the fixing member 13 may be provided with a mounting groove 132, which extends axially along the fixing member 13 and can be used for mounting the temperature sensing element 30. A protrusion 133 may be provided at one end of the mounting groove 132 facing the tip 113 of the tube body 11. This protrusion 133 can block the temperature sensing element 30 from the support body 122, and maintain a predetermined distance between the temperature sensing element 30 and the heating element 121, and can also be used for limiting the installation of the heating element 121. In this embodiment, a separator 134 may be provided in the mounting groove 132. The separator 134 protrudes from the inner wall of the mounting groove 132 and can be used to separate the two leads of the temperature sensing element 30.

[0051] In this embodiment, the heating structure 10 further includes two conductive connectors 14, one of which can be connected to the support body 122, and the other conductive connector 14 can be connected to the heating part 121. Both conductive connectors 14 can partially extend from the fixing member 13 out of the tube body 11 to connect with the power supply assembly. Specifically, one conductive connector 14 can be welded to one end of the insertion portion 1222 of the support body 122. In some embodiments, one conductive connector 14 can be welded to the limiting portion 1223 and extend through the fixing hole 131. The other conductive connector 14 can be welded to the end of the heating part 121 facing the tube opening 11 and can extend axially along the fixing member 13. The fixing member 13 may have a lead wire hole for the conductive connector 14 to pass through. In some embodiments, the conductive connector 14 can be a conductive needle or a conductive post. In other embodiments, the conductive connector 14 can also be a lead wire.

[0052] In this embodiment, the mounting base 20 may be cylindrical, and may include an end wall 21 and an annular wall 22 disposed on the outer periphery of the end wall 21. The mounting base 20 also includes an opening 24 at one end opposite to the end wall 21. A mounting post 23 extending toward the opening 24 is provided on the inner side of the end wall 21, and the mounting post 23 can be used for the insertion and fixing of the heating structure 10. Specifically, in this embodiment, a mounting hole 231 is provided on the end wall 21, and the mounting hole 231 may be formed in the mounting post 23, which can extend from the end wall 21 to the end of the mounting post 23 away from the end wall 21. The mounting hole 231 can be used for the insertion and installation of the heating structure 10. In this embodiment, the tube body 11 of the heating structure 10 is inserted into the mounting hole 231, and a gap is left between the two, which can be fixed by providing a first adhesive structure 40. A second adhesive structure 50 can be provided at the end of the mounting hole 231 away from the end wall 21 to bond and fix the tube body 11 to the mounting post 23. In some other embodiments, the tube body 11 portion of the heating structure 10 is inserted into the mounting hole 231 and can be fixed to the mounting hole 231 by interference fit.

[0053] For example Figure 3 and Figure 5 As shown, in this embodiment, the heating assembly 1 further includes a temperature sensing element 30, which can partially penetrate into the tube body 11 and is positioned towards the heating element 121. Specifically, the temperature sensing element 30 can be installed in the mounting groove 132 of the fixing member 13 and fixed in the tube body 11 by the fixing member 13, for measuring the temperature in the tube body 11. In some other embodiments, the temperature sensing element 30 can be omitted.

[0054] Figure 8The second embodiment of the aerosol generating device of the present invention is shown. The difference between the second and first embodiments is that the limiting part 1223 can be omitted. The outer wall of the insertion part 1222 can be set without gap with the wall of the fixing hole 131 to achieve close contact between the two, thereby realizing the cooperation and fixation of the fixing member 13 and the support body 122.

[0055] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A heating element, characterized in that, include: The tube body (11) has a tube opening (112) at one end; The fastener (13) is at least partially installed in the tube body (11) from the opening (112) and has a fixing hole (131) that extends through the fastener (13) along the axial direction of the fastener (13); A heating element (12) is at least partially disposed in the tube body (11), including a support body (122) and a heating part (121). The heating part (121) is at least partially disposed on the outer periphery of the support body (122). The support body (122) is partially inserted into the fixing hole (131) and is fixed in cooperation with the fixing hole (131) so that the heating element (12) is fixed in the tube body (11).

2. The heating component according to claim 1, characterized in that, The support (122) includes a main body (1221) for the heating element (121) and a plug-in part (1222) disposed at one end of the main body (1221) and cooperating with the fixing hole (131); the plug-in part (1222) is fixed in cooperation with the fixing hole (131).

3. The heating component according to claim 2, characterized in that, At least a portion of the insertion part (1222) is in clearance fit with the wall of the fixing hole (131).

4. The heating component according to claim 2, characterized in that, The minimum gap between the outer wall of the plug part (1222) and the wall of the fixing hole (131) is 0 to 0.03 mm.

5. The heating component according to claim 2, characterized in that, The insertion length of the plug (1222) into the fixing hole (131) is 1mm to 3mm.

6. The heating component according to claim 2, characterized in that, At least a portion of the outer wall of the plug (1222) is provided with a high-temperature resistant adhesive structure between it and the wall of the fixing hole (131).

7. The heating component according to claim 2, characterized in that, A limiting part (1223) is provided at one end of the plug-in part (1222) away from the main body part (1221); the cross-sectional dimension of the limiting part (1223) is larger than the cross-sectional dimension of the plug-in part (1222); The limiting part (1223) and the hole wall of the fixing hole (131) are fitted without clearance.

8. The heating component according to claim 1, characterized in that, The heating element (121) is spiral-shaped, and the end of the heating element (121) away from the port (112) is electrically connected to the support (122).

9. The heating component according to claim 1, characterized in that, It also includes two conductive connectors (14); One of the conductive connectors (14) is connected to the support (122), and the other conductive connector (14) is connected to the heating element (121), and both conductive connectors (14) extend out of the tube (11) from the fixing member (13).

10. An aerosol generating device, characterized in that, It includes the heating component (1) as described in any one of claims 1 to 9 and the power supply component electrically connected to the heating component (1).

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