Heating assembly, aerosol generating device and aerosol generating system

Abstract

The embodiment of the utility model discloses a heating assembly, an aerosol generating device and an aerosol generating system.The heating assembly comprises a mounting support, a heating part and a sealing part; the mounting support is provided with a mounting groove; the heating piece is used for heating the aerosol generating substrate, the two ends of the heating piece in the axial direction are the first end and the second end respectively, and the first end is arranged in the mounting groove; the sealing piece is clamped between the peripheral wall of the heating piece and the groove wall of the mounting groove in a sealing manner; wherein the peripheral wall of the heating piece is further provided with a limiting face facing the first end, and the sealing piece abuts against the limiting face. According to the heating assembly provided by the embodiment of the invention, one end of the sealing element is limited through the limiting surface, so that the probability of displacement of the sealing element on the heating element is reduced, the assembly qualification rate of the sealing element is improved, and the production efficiency of the heating assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generating apparatuses, and in particular to a heating component, an aerosol generating device and an aerosol generating system. Background Art

[0002] This section is intended to provide a background or context to the embodiments described in this application. No description herein is admitted to be prior art by inclusion in this section.

[0003] An aerosol generating device is a device used to heat an aerosol generating substrate and generate an aerosol.

[0004] In the related art, the aerosol generating device includes a heating component. During the assembly process of the heating component, the sealing part of the heating component is prone to assembly failure, thereby affecting the production efficiency of the heating component. Utility Model Content

[0005] In view of this, the embodiments of the present application hope to provide a heating component, an aerosol generating device and an aerosol generating system, aiming to improve the assembly qualification rate of the sealing component, thereby improving the production efficiency of the heating component.

[0006] To achieve the above objectives, in a first aspect, an embodiment of the present application provides a heating component for an aerosol generating device, the heating component comprising:

[0007] A mounting support having a mounting slot;

[0008] A heating element, used for heating the aerosol generating substrate, wherein the two ends of the heating element along the axial direction are respectively a first end and a second end, and the first end is disposed in the mounting groove;

[0009] A sealing member, the sealing member being disposed between the outer peripheral wall of the heating member and the groove wall of the mounting groove;

[0010] Wherein, a limiting surface facing the first end is further arranged on the outer peripheral wall of the heating element, and the sealing element abuts against the limiting surface.

[0011] In one embodiment, the heating element includes a heating element and a limiting member sleeved on the heating element, an end surface of the limiting member facing the first end constitutes the limiting surface, and the heating element and the limiting member are split structures.

[0012] In one implementation, the limiting member is a heat shrink tube.

[0013] In one embodiment, the diameter of the installation groove gradually increases from the first end to the second end.

[0014] In one embodiment, the thickness of the sealing member gradually increases from the first end to the second end, and the outer side wall of the sealing member is adapted to the groove wall of the installation groove.

[0015] In one embodiment, the space formed by the groove wall of the installation groove is in the shape of a truncated cone; and / or the sealing member is in the shape of a truncated cone.

[0016] In one embodiment, the mounting support is provided with an air hole connected to the mounting groove, and the heating element has a heating cavity inside, and the heating cavity is connected to the outside through the air hole.

[0017] In one embodiment, the mounting support has a through hole, and the through hole passes through both ends of the mounting support along the axial direction of the heating element. A step surface facing the heating element is formed on the hole wall of the through hole. The portion of the through hole extending along the step surface close to the heating element is formed as the mounting groove, and the portion of the through hole extending along the step surface away from the heating element is formed as the air hole.

[0018] In a second aspect, an embodiment of the present application provides an aerosol generating device, comprising a power supply component and a heating component as described in any one of the above embodiments, wherein the power supply component is electrically connected to the heating element.

[0019] In a third aspect, an embodiment of the present application provides an aerosol generating system, which includes an aerosol generating substrate and an aerosol generating device as described in any one of the above embodiments, wherein the aerosol generating device has a containing chamber, the aerosol generating substrate is arranged in the containing chamber, and the heating element is used to heat the aerosol generating substrate.

[0020] In the heating assembly provided in the embodiment of the present application, a limiting surface facing the first end is provided on the outer peripheral wall of the heating element. During the assembly process of the heating assembly, a force is applied to the heating element along the second end of the heating element toward the first end of the heating element. Under the action of this force, the first end of the heating element can be gradually extended into the installation groove, and the side of the sealing element close to the second end of the heating element abuts against the limiting surface. Under the action of the limiting surface, the sealing element can also overcome the friction between it and the groove wall of the installation groove, and can also be gradually moved into the installation groove, and achieve sealing cooperation with the groove wall of the installation groove and the side wall of the heating element, so that the heating element can be sealed and installed in the installation groove. Therefore, during the assembly process of the heating assembly, the limiting surface can transmit the force to the sealing element, and the sealing element and the heating element can achieve synchronous movement, which reduces the probability of the sealing element sliding on the heating element, thereby improving the assembly qualification rate of the sealing element, and the sealing element is easier to be installed in place at one time, thereby improving the production efficiency of the heating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a heating component according to an embodiment of the present application;

[0022] Figure 2 is a cross-sectional schematic diagram of a heating component according to an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the structure of a mounting bracket according to an embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of a heating element according to an embodiment of the present application.

[0025] Description of Reference Numerals

[0026] 10. Heating assembly; 11. Mounting support; 11a. Mounting groove; 11b. Air hole; 11c. Through hole; 11d. Step surface; 12. Heating element; 121. Heating element; 121a. First end; 121b. Second end; 121c. Heating chamber; 122. Limiting element; 122a. Limiting surface; 13. Sealing element. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" refers to two or more.

[0029] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the embodiment of the present application, "axial direction" is based on the Figure 2It should be understood that these directional terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] In a first aspect, an embodiment of the present application provides an aerosol generating system, which includes an aerosol generating substrate and an aerosol generating device of any embodiment of the present application, wherein the aerosol generating device has a containing chamber, and the aerosol generating substrate is arranged in the containing chamber, and the heating element of the aerosol generating device is used to heat the aerosol generating substrate.

[0032] The containing chamber provides a containing space for the aerosol generating substrate, and the aerosol generating substrate can be heated by the heating element in the containing chamber to generate aerosol.

[0033] The shape and size of the storage chamber are not limited, as long as they can meet the storage requirements of the aerosol generating substrate.

[0034] like Figures 1 to 4 As shown, in a second aspect, an embodiment of the present application provides an aerosol generating device, the aerosol generating device comprises a power supply assembly and a heating assembly 10 of any embodiment of the present application. The heating assembly 10 comprises a heating element 12, and the power supply assembly is electrically connected to the heating element 12.

[0035] The power supply assembly is mainly used to supply power to the heating element 12 and control the opening or closing of the entire aerosol generating device. The heating element 12 can heat the aerosol generating substrate after power is turned on to generate aerosol for the user to take. The aerosol generating substrate includes but is not limited to materials used for medical treatment, health preservation, health, beauty and other purposes. For example, the aerosol generating substrate includes but is not limited to medicines, materials containing nicotine or materials not containing nicotine, etc.

[0036] It should be noted that the specific type of the aerosol generating device provided in the embodiments of the present application is not limited. For example, the aerosol generating device can be a medical atomizing device, an air humidifier, or an atomizing device such as an electronic cigarette.

[0037] Thirdly, Figures 1 to 4As shown, the embodiment of the present application provides a heating component, the heating component 10 is used for an aerosol generating device, and the heating component 10 includes a mounting support 11, a heating element 12, and a sealing element 13. The mounting support 11 has a mounting groove 11a; the heating element 12 is used to heat the aerosol generating substrate, and the two ends of the heating element 12 along its axial direction are respectively a first end 121a and a second end 121b, and the first end 121a is arranged in the mounting groove 11a; the sealing element 13 is sealingly clamped between the outer peripheral wall of the heating element 12 and the groove wall of the mounting groove 11a; wherein, the outer peripheral wall of the heating element 12 is also provided with a limiting surface 122a facing the first end 121a, and the sealing element 13 abuts against the limiting surface 122a.

[0038] The specific structural form of the mounting bracket 11 is not limited, as long as it can be used to mount and fix the heating element 12 .

[0039] The shape of the heating element 12 is not limited. For example, Figure 4 As shown, in some embodiments, the heating element 12 is generally tubular. Of course, in other embodiments, the heating element 12 can also be in other shapes such as a square column.

[0040] The first end 121a of the heating element 12 is disposed in the mounting groove 11a. The mounting groove 11a can facilitate the connection between the heating element 12 and the mounting support 11. At the same time, the mounting groove 11a also has a certain limiting effect on the first end 121a of the heating element 12.

[0041] The material of the sealing member 13 is not limited. For example, it can be silica gel. The sealing member 13 made of silica gel is not easy to separate harmful substances when heated, which is beneficial to human health.

[0042] The sealing member 13 and the groove wall of the installation groove 11 a can be sealed by interference fit, thereby improving the sealing performance of the connection between the first end 121 a of the heating member 12 and the installation groove 11 a.

[0043] During the assembly process of the heating component 10, the sealing member 13 can be first sleeved on the first end 121a of the heating member 12, and then a force can be applied to the heating member 12 along the second end 121b of the heating member 12 in the direction of the first end 121a of the heating member 12, forcing the first end 121a of the heating member 12 to extend into the mounting groove 11a, and under the action of the limiting surface 122a, the sealing member 13 can also gradually extend into the mounting groove 11a, so that the sealing member 13 can be interference fit between the groove wall of the mounting groove 11a and the peripheral wall of the heating member 12, and realize the sealed installation between the heating member 12 and the mounting support 11.

[0044] In the related art, when assembling the heating component, the sealing member is sleeved on the heating member and as the heating member is installed in the mounting groove, the heating member moves from the second end to the first end under the action of the force. Due to the friction between the sealing member and the groove wall of the mounting groove, relative sliding occurs between the sealing member and the heating member, causing the sealing member to be unable to be assembled into place and resulting in unqualified assembly, thereby affecting the production efficiency of the heating component.

[0045] In the heating assembly provided in the embodiment of the present application, a limiting surface 122a facing the first end 121a is provided on the outer peripheral wall of the heating element 12. During the assembly process of the heating assembly 10, a force is applied to the heating element 12 along the second end 121b of the heating element 12 toward the first end 121a of the heating element 12. Under the action of this force, the first end 121a of the heating element 12 can gradually extend into the installation groove 11a, and the side of the sealing element 13 close to the second end 121b of the heating element 12 abuts against the limiting surface 122a. Under the action of the limiting surface 122a, the sealing element 13 can also overcome the gap between it and the groove wall of the installation groove 11a. The friction force can also be gradually moved into the installation groove 11a, and realize the sealing cooperation with the groove wall of the installation groove 11a and the side wall of the heating element 12, so that the heating element 12 can be sealed and installed in the installation groove 11a. Therefore, during the assembly process of the heating component 10, the limiting surface 122a can transmit the force to the sealing element 13, and the sealing element 13 and the heating element 12 can realize synchronous movement, which reduces the probability of the sealing element 13 sliding on the heating element 12, thereby improving the assembly qualification rate of the sealing element 13, and the sealing element 13 is easier to be installed in place at one time, thereby improving the production efficiency of the heating component 10.

[0046] like Figures 2 to 4 As shown, in some embodiments, the mounting support 11 is provided with an air hole 11b communicating with the mounting groove 11a, and the heating element 12 has a heating cavity 121c inside, and the heating cavity 121c is communicated with the outside through the air hole 11b.

[0047] It is understandable that the function of the seal 13 is to seal the connection between the heating chamber 121c and the air hole 11b, and the aerosol generating substrate is heated in the heating chamber 121c to generate aerosol. The seal 13 can effectively prevent the aerosol from flowing out through the gap between the heating element 12 and the groove wall of the installation groove 11a.

[0048] The air hole 11b can be used as an air outlet or an air inlet of the heating chamber 121c. When used as an air outlet, the user can extract the aerosol generated in the heating chamber 121c through the air hole 11b, and when used as an air inlet, the airflow enters the heating chamber 121c through the air hole 11b and carries the aerosol generated in the heating chamber 121c out of the heating chamber 121c.

[0049] It should be noted that the form of the aerosol generating substrate is not limited. For example, it can be solid. The aerosol generating substrate can include tobacco materials.

[0050] like Figure 2 and Figure 3 As shown, in some embodiments, the mounting support 11 has a through hole 11c, which passes through both ends of the mounting support 11 along the axial direction of the heating element 12, and a step surface 11d facing the heating element 12 is formed on the hole wall of the through hole 11c. The portion of the through hole 11c extending along the step surface 11d toward the heating element 12 is formed as a mounting groove 11a, and the portion of the through hole 11c extending along the step surface 11d away from the heating element 12 is formed as an air hole 11b.

[0051] The step surface 11d is extended along the circumference of the through hole 11c, and its specific extension length is not limited. For example, the step surface 11d may be extended along the circumference of the through hole 11c, or the step surface 11d may extend along the circumference of the through hole 11c for a certain distance.

[0052] It should be noted that when the step surface 11d extends a distance along the circumference of the through hole 11c, the number of the step surface 11d is not limited, and there may be only one section or multiple sections.

[0053] The step surface 11d can limit the depth of the heating element 12 extending into the through hole 11c. When the first end 121a of the heating element 12 abuts against the step surface 11d, the heating element 12 can no longer move into the through hole 11c.

[0054] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the heating element 12 includes a heating element 121 and a limiting member 122 sleeved on the heating element 121, the end surface of the limiting member 122 facing the first end 121a constitutes a limiting surface 122a, and the heating element 121 and the limiting member 122 are split structures.

[0055] It should be noted that there is no restriction on the order in which the stopper 122 and the seal 13 are installed on the heating element 121. The stopper 122 may be installed first and then the seal 13 so that the seal 13 abuts against the stopper 122, or the seal 13 may be installed first and then the stopper 122 so that the seal 13 abuts against the stopper 122.

[0056] It should be noted that, in the present embodiment, two ends of the heating element 121 along the axial direction respectively constitute the first end 121a of the heating element 12 and the second end 121b of the heating element 12, and the heating element 121 further has a heating cavity 121c.

[0057] Generally speaking, the heating element 121 is formed into a flared structure at the first end 121 a . Thus, when the sealing element 13 is installed on the heating element 121 , the sealing element 13 cannot be installed due to the influence of the flared structure and the limiting surface 122 a .

[0058] In this embodiment, the heating element 121 and the limiting member 122 are designed as a split structure. When installing the sealing member 13, the sealing member 13 can be sleeved onto the heating element 121 through the second end 121b of the heating element 121, and moved along the axial direction of the heating element 121 to the vicinity of the flared structure of the first end 121a of the heating element 121, and then the limiting member 122 can be installed on the heating element 121 in the same way. In this way, the installation of the sealing member 13 can be achieved.

[0059] Of course, in some other embodiments, the heating element 121 and the limiting member 122 may also be an integrated structure. In the heating element 12 of this structure, the first end 121a of the heating element 121 cannot adopt a flared structure.

[0060] There is no limitation on the type of the stopper 122. In some embodiments, the stopper 122 is a heat shrink tube.

[0061] Heat shrink tubing is a special polyolefin heat shrink tubing. The outer layer is made of high-quality soft cross-linked polyolefin material and the inner layer is made of hot melt adhesive. The outer layer has the characteristics of insulation, corrosion resistance, and wear resistance, while the inner layer has the advantages of low melting point, waterproof sealing, and high adhesion.

[0062] The heat shrink tube can be heat-shrunk onto the heating element 121, making installation more convenient.

[0063] The heat shrink tube has the property of shrinking at high temperature, and is not prone to limit failure under the influence of the heat generated by the heating element 121 , thereby improving the reliability and service life of the heating component 10 .

[0064] like Figure 2 As shown, in some embodiments, the diameter of the mounting groove 11a gradually increases from the first end 121a to the second end 121b.

[0065] In the related art, a seal is generally first arranged in the installation groove, and then the heater is inserted into the inner ring of the seal. However, in the process of inserting the heater into the inner ring of the seal, the heater can easily overturn the inner ring of the seal, especially the heater with a flared structure, which is more likely to overturn the inner ring of the seal, thereby resulting in low production efficiency of the heating component and poor sealing performance.

[0066] In the heating assembly 10 of this embodiment, the seal 13 is first sleeved on the heating element 12, and the mounting groove 11a is designed to be expanded. The expansion direction of the mounting groove 11a is opposite to the installation direction of the heating element 12. During the process of installing the heating element 12 carrying the seal 13 into the mounting groove 11a, the size of the mounting groove 11a gradually shrinks, thereby reducing the possibility of the seal 13 being overturned. The seal 13 has a better sealing effect between the heating element 12 and the groove wall of the mounting groove 11a. At the same time, the heating assembly 10 of this structure is easier to assemble, thereby improving production efficiency.

[0067] It should be noted that the thickness of the sealing member 13 is not limited in the direction from the first end 121a to the second end 121b. For example, in some embodiments, the thickness of the sealing member 13 remains unchanged. In this embodiment, at least the portion of the gap between the groove wall of the installation groove 11a and the heating member 12 close to the first end 121a can be sealed by the sealing member 13.

[0068] In other embodiments, Figure 2 As shown, the thickness of the sealing member 13 gradually increases from the first end 121a to the second end 121b, and the outer side wall of the sealing member 13 is adapted to the groove wall of the installation groove 11a.

[0069] The outer wall of the sealing member 13 is adapted to the groove wall of the installation groove 11 a, which means that the outer wall of the sealing member 13 and the groove wall of the installation groove 11 a can be sealed and fitted.

[0070] It can be understood that the relationship between the thickness change of the seal 13 and the diameter change of the installation groove 11a is similar. In this way, after the heating component 10 is assembled, the gap between the heating element 12 and the groove wall of the installation groove 11a can basically be sealed by the seal 13, thereby improving the sealing performance of the heating component 10.

[0071] In addition, after the gap between the heating element 12 and the groove wall of the installation groove 11a is basically filled with the sealing element 13, the heating element 12 is not easy to shake in the installation groove 11a, thus improving the installation stability of the heating element 12 in the installation groove 11a.

[0072] like Figure 2 and Figure 3 As shown, in some embodiments, the space formed by the groove wall of the installation groove 11a is in the shape of a truncated cone.

[0073] The truncated cone-shaped installation groove 11a has a better smoothness of the groove wall along the circumferential direction. In this way, when the heating element 12 is installed in the installation groove 11a, it can be installed at any angle, and the assembler does not need to adjust the installation angle of the heating element 12, thereby improving production efficiency.

[0074] like Figure 2 As shown, in some embodiments, the sealing member 13 is in the shape of a truncated cone.

[0075] It can be understood that in this embodiment, the space formed by the outer wall of the seal 13 can be in the shape of a truncated cone. In this way, when the space formed by the groove wall of the installation groove 11a is also in the shape of a truncated cone, the seal 13 and the groove wall of the installation groove 11a along the circumferential direction are equivalent to the fit between the inner circle and the outer circle. In this way, the seal 13 and the groove wall of the installation groove 11a can achieve a better tight fit and seal along the circumferential direction.

[0076] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0077] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A heating assembly for an aerosol generating device, characterized in that: The heating assembly comprises: A mounting support having a mounting slot; A heating element, used for heating the aerosol generating substrate, wherein the two ends of the heating element along the axial direction are respectively a first end and a second end, and the first end is disposed in the mounting groove; A sealing member, the sealing member being disposed between the outer peripheral wall of the heating member and the groove wall of the mounting groove; Wherein, a limiting surface facing the first end is further arranged on the outer peripheral wall of the heating element, and the sealing element abuts against the limiting surface.

2. The heating assembly according to claim 1, characterized in that The heating element comprises a heating element and a limiting element sleeved on the heating element, an end surface of the limiting element facing the first end constitutes the limiting surface, and the heating element and the limiting element are split structures.

3. The heating assembly according to claim 2, characterized in that The limiting member is a heat shrink tube.

4. The heating assembly according to any one of claims 1 to 3, characterized in that: Along the direction from the first end to the second end, the diameter of the installation groove gradually increases.

5. The heating assembly according to claim 4, characterized in that Along the direction from the first end to the second end, the thickness of the sealing member gradually increases, and the outer side wall of the sealing member is adapted to the groove wall of the installation groove.

6. The heating assembly according to any one of claims 1 to 3, characterized in that: The space formed by the groove wall of the installation groove is in the shape of a truncated cone; and / or the sealing member is in the shape of a truncated cone.

7. The heating assembly according to any one of claims 1 to 3, characterized in that: The mounting support is provided with an air hole communicating with the mounting groove, and the heating element has a heating cavity inside, and the heating cavity is communicated with the outside through the air hole.

8. The heating assembly according to claim 7, characterized in that The mounting support has a through hole, which passes through both ends of the mounting support along the axial direction of the heating element. A step surface facing the heating element is formed on the hole wall of the through hole. The portion of the through hole extending along the step surface close to the heating element is formed as the mounting groove, and the portion of the through hole extending along the step surface away from the heating element is formed as the air hole.

9. An aerosol generating device, characterized in that: The aerosol generating device comprises a power supply component and a heating component according to any one of claims 1 to 8, wherein the power supply component is electrically connected to the heating element.

10. An aerosol generating system, characterized in that: The aerosol generating system comprises an aerosol generating substrate and the aerosol generating device according to claim 9, wherein the aerosol generating device has a containing chamber, the aerosol generating substrate is arranged in the containing chamber, and the heating element is used to heat the aerosol generating substrate.

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