Heating element structure and aerosol-generating device
By introducing a gap design between insulating support components and limiting retaining components in the heating element structure, the problems of deformation and cracking of the heating element during drop are solved, thereby improving the stability and durability of the heating element.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-07
AI Technical Summary
Needle-type heating elements are prone to deformation or cracking when subjected to external energy impacts, and existing technologies have not been able to effectively solve this problem.
A heating element structure was designed, including a heating body, an insulating support, and a limiting retainer. A gap is left between the insulating support and the inner wall of the tube, and the limiting retainer is in close contact with the inner wall of the tube to form a stepped structure to stabilize the position of the insulating support and reduce the swing and impact during a fall.
The stable centering and gap design of the insulating support reduces the deformation and cracking of the heating element during drops, improving the stability and durability of the heating element.
Smart Images
Figure CN224084677U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to aerosol generating technology field especially, relate to a kind of heating body structure and aerosol generating device. BACKGROUND
[0002] The HNB (Heating Not Burning) aerosol generating device of related art generally adopts needle type heating body, since the heating body inside needs insulation tube assembly to support heating wire assembly, and window material and internal assembly are all cantilever beam structure, thus in the process of user use, if it appears to fall to ground, external impact energy can be transmitted to heating body inside through flange, leading to heating body deformation or cracking. SUMMARY
[0003] The utility model solves the technical problems in the prior art, and provides a heating body structure and an aerosol generating device.
[0004] The utility model discloses a heating body structure, which comprises a heating body, the heating body comprises a tube body, a heating body, an insulation support and a limiting retaining piece.
[0005] The heating body, at least part of the insulation support and at least part of the limiting retaining piece are arranged in the tube body, and the insulation support supports the heating body.
[0006] The limiting retaining piece is arranged in close contact with the inner side wall of the tube body, and there is a gap between at least part of the insulation support and the inner side wall of the tube body.
[0007] In some embodiments, the insulation support has a continuous first section and a second section in the axial direction, the outer diameter of the first section is greater than the outer diameter of the second section, to form a step.
[0008] The limiting retaining piece is arranged on at least part of the outer side wall of the second section.
[0009] There is a gap between the outer side wall of the first section and the inner side wall of the tube body.
[0010] In some embodiments, one end of the limiting retaining piece abuts on the step.
[0011] In some embodiments, the length of the part of the insulation support, on which the limiting retaining piece is not arranged, is greater than or equal to 5 mm.
[0012] In some embodiments, a gap between the outer sidewall of the insulating support and the inner sidewall of the tube body is greater than or equal to 0.01 mm.
[0013] In some embodiments, the limiting retaining member is a sleeve made of a high-temperature-resistant and flexible material; or, the limiting retaining member is a filler formed by pouring between the insulating support and the tube body.
[0014] In some embodiments, the limiting retaining member has a thickness greater than or equal to 0.03 mm and less than or equal to 1.0 mm.
[0015] In some embodiments, the heating body structure further comprises:
[0016] A mounting seat is arranged around one end of the tube body.
[0017] In some embodiments, the heating body structure further comprises:
[0018] A base is located at an end of the mounting seat away from the heating body; part of the limiting retaining member and part of the insulating support are located outside the tube body and pass through the mounting seat and the base; the base fixedly connects the limiting retaining member and the insulating support on the mounting seat.
[0019] The utility model also constructs an aerosol generating device, including any one of the heating body structure described above.
[0020] By implementing the utility model, the following beneficial effects are achieved:
[0021] The limiting retaining member can stabilize the insulating support in the tube body, and form a gap between part of the insulating support and the tube body, so as to reduce the swing of the insulating support when falling, and the gap can avoid the impact of the insulating support on the tube body to some extent, thereby improving the problem of deformation or cracking of the tube body of the heating body when falling. BRIEF DESCRIPTION OF DRAWINGS
[0022] The utility model will be further described below in combination with the drawings and embodiments, and the drawings show:
[0023] Figure 1 The overall structure diagram of one embodiment of the heating body structure of the utility model is shown;
[0024] Figure 2 The first explosion diagram of one embodiment of the heating body structure of the utility model is shown;
[0025] Figure 3 The second explosion diagram of one embodiment of the heating body structure of the utility model is shown;
[0026] Figure 4 The diagram shows the structure of the insulating support and the limiting retainer in one embodiment of the heating element structure of this utility model;
[0027] Figure 5 A cross-sectional view of one embodiment of the heating element structure of this utility model is shown. Detailed Implementation
[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "located in," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a chemical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] like Figure 1 and Figure 2 As shown, some embodiments of this utility model disclose a heating element structure applied in a device for heating non-combustible aerosols to heat the aerosol generating matrix. The heating element structure includes a heating element 1, which comprises a tube 11, a heating body 12, an insulating support 13, and a limiting and retaining member 14, as detailed below:
[0033] The tube 11 (also called the window) allows infrared light radiated by the heating element 12 to pass through, thereby heating the aerosol-generating matrix. The tube 11 is made of a brittle material and is prone to deformation, cracking, or even breakage upon drop. To address this problem, such as... Figure 2 , Figure 3 and Figure 4 As shown, a heating body 12, at least a partial insulating support 13, and at least a partial limiting retainer 14 are disposed within a tube body 11. The insulating support 13 supports the heating body 12. The limiting retainer 14 surrounds at least a portion of the outer wall of the insulating support 13. The outer wall of the limiting retainer 14 is tightly fitted against the inner wall of the tube body 11, while a gap exists between the outer wall of at least a portion of the insulating support 13 and the inner wall of the tube body 11. It can be understood that "at least a portion" can refer to a portion of the length or the entire length.
[0034] The limiting retainer 14 in this embodiment can stably center the insulating support 13 inside the tube 11 and form a gap between part of the insulating support 13 and the tube 11. When falling, the swing of the insulating support 13 can be reduced, and the gap can avoid the impact of the insulating support 13 on the tube 11 to a certain extent, thereby improving the problem of deformation or cracking of the tube 11 of the heating element 1 when falling.
[0035] In some embodiments, the tube body 11, the insulating support 13, and the limiting retainer 14 are coaxially arranged, so that the insulating support 13 is stably centered within the tube body 11.
[0036] In some embodiments, such as Figure 4 As shown, the insulating support 13 has a continuous first segment 131 and a second segment 132 in its axial direction Z, the outer diameter of the first segment 131 being larger than the outer diameter of the second segment 132 to form a step 133.
[0037] Furthermore, the limiting retainer 14 is disposed around at least a portion of the outer side wall of the second segment 132. A gap exists between the outer side wall of the first segment 131 and the inner side wall of the tube body 11. Figure 4 Taking the orientation shown as an example, the first segment 131 and the second segment 132 of the insulating support 13 form a stepped structure that is larger at the top and smaller at the bottom, and the lower segment is equipped with a limit retainer 14.
[0038] In some embodiments, such as Figure 2 and Figure 3 As shown, the heating body 12 is located on the insulating support 13 at one end away from the limiting retainer 14, specifically at the end of the first segment 131 of the insulating support 13 away from the second segment 132, and as... Figure 5 As shown, the heating body 12 is disposed inside the tube body 11 and has a gap between it and the tube body 11.
[0039] In some embodiments, such as Figure 2 As shown, the heating body 12 can be a spiral heating element made of nickel-chromium-aluminum alloy material. The nickel-chromium-aluminum alloy material and spiral shape are only examples and are not intended to limit this application. Other materials and other shapes are also possible, such as iron-chromium-aluminum alloy material, single spiral or double spiral, etc.
[0040] In some embodiments, the heating body 12 includes a heating substrate and an infrared radiation layer disposed on the outer surface of the heating substrate. When the heating substrate is powered on and heated, it can excite the infrared radiation layer to generate infrared light and radiate it.
[0041] In some embodiments, such as Figure 2 , Figure 3 and Figure 5 As shown, the insulating support 13 has a hollow structure, through which the lead wire 15 can pass. The lead wire 15 is used to realize the electrical connection between the external power supply device and the heating body 12. For example, the insulating support 13 is a hollow tubular ceramic body. The tubular ceramic body here is only an example and is not intended to limit this application. It can also be other shapes or other insulating materials, such as quartz glass.
[0042] In some embodiments, the axial direction of the tube body 11 is the same as the axial direction of the insulating support 13 in the Z direction. One end of the tube body 11 in the axial direction has an opening, and the other end has a pointed structure 111. The opening is used for the heating body 12, at least part of the insulating support 13 and at least part of the limiting retainer 14 to pass through the tube body 11, while the pointed structure 111 facilitates the insertion and removal of at least part of the heating body structure into the aerosol generating matrix.
[0043] In some embodiments, the tube 11 is a quartz glass tube. The quartz glass tube mentioned here is only an example and is not intended to limit this application. It can also be other window materials that allow infrared light to pass through, such as transparent ceramic tubes.
[0044] In some embodiments, the limiting retainer 14 is a sleeve made of a high-temperature resistant and flexible material. Specifically, the limiting retainer 14 is a sleeve formed in a mold from a high-temperature resistant and flexible material, or the limiting retainer 14 is a sleeve formed by winding a strip of high-temperature resistant and flexible material, such as a spiral sleeve. Exemplarily, the high-temperature resistant and flexible material is a high-temperature resistant soft plastic, soft metal, or silicone, wherein the soft metal is aluminum, copper, silver, etc. Here, the high-temperature resistance is greater than or equal to 150 degrees Celsius, or greater than or equal to 200 degrees Celsius.
[0045] In other embodiments, the limiting retainer 14 is a filler formed by filling between the outer wall of the insulating support 13 (specifically the outer wall of the second segment 132 of the insulating support 13) and the inner wall of the tube 11, specifically a sleeve.
[0046] In some embodiments, such as Figure 5 As shown, the thickness of the limiting retainer 14 is greater than or equal to 0.03 mm and less than or equal to 1.0 mm. Sufficient thickness allows for a sufficient gap to be formed between the insulating support 13 and the tube body 11. For example, if the outer diameter of the first segment 131 of the insulating support 13 is 1.37 mm, the outer diameter of the second segment 132 of the insulating support 13 is 1.34 mm, and the thickness of the sleeve is 0.08 mm, then the gap is 0.05 mm. The 1.37 mm, 1.34 mm, 0.08 mm, and 0.05 mm mentioned here are merely examples and are not intended to limit this application; other parameters may also be used.
[0047] In some embodiments, such as Figure 2 and Figure 4 As shown, the step 133 on the insulating support 13 has a positioning function. When one end of the limiting retainer 14 abuts against the step 133, it can prevent the limiting retainer 14 from moving further towards the heating body 12. The temperature is higher on the first segment 131 closer to the heating body 12. The step 133 can prevent the limiting retainer 14 from melting due to excessively high temperature at the heating body 12. Therefore, the length of the part of the insulating support 13 that is not surrounded by the limiting retainer 14 can be greater than or equal to 5mm, that is, the axial length of the first segment 131 of the insulating support 13 can be made as long as possible to avoid excessively high temperature at the step 133.
[0048] In some embodiments, such as Figure 5 As shown, the gap between the outer wall of the insulating support 13 (specifically the first segment 131 of the insulating support 13) and the inner wall of the tube 11 is greater than or equal to 0.01 mm, which can prevent direct contact between the insulating support 13 (specifically the first segment 131 of the insulating support 13) and the tube 11 during the fall.
[0049] In some embodiments, such as Figure 5 As shown, the heating element structure also includes a mounting base 2, which surrounds one end of the tube body 11 (specifically, at least part of the outer wall of the end of the tube body 11 away from the heating body 13), and the mounting base 2 is fixedly connected to the tube body 11. The mounting base 2 is used to assemble the heating element structure into the interior of the heating non-combustible aerosol generating device.
[0050] Specifically, such as Figure 5As shown, the mounting base 2 is provided with a hollow mounting groove 21 with steps. One open end of the tube body 11 is inserted into the mounting groove 21, and the periphery of the opening of the tube body 11 abuts against the steps. The limiting retainer 14 and the insulating support 13 pass through the mounting groove 21, and a fixing body 4 is formed between the inner side wall of the mounting groove 21 and the outer side wall of the tube body 11 by filling, thereby realizing the fixed connection between the mounting base 2 and the tube body 11. For example, the mounting base 2 is a flange. The flange here is only an example and is not intended to limit this application. Other types are also possible.
[0051] In some embodiments, the heating element structure further includes a base 3, which is located on the mounting base 2 at the end away from the heating body 12. A portion of the limiting retainer 14 and a portion of the insulating support 13 (specifically, the second segment 132 of the insulating support 13) are located outside the tube 11 and pass through the mounting base 2 and the base 3. The base 3 fixes the limiting retainer 14 and the insulating support 13 to the mounting base 2. The base 3 is a filling-formed seat. Specifically, when a portion of the limiting retainer 14 and a portion of the second segment 132 of the insulating support 13 pass through the mounting groove 21, the base 3 can be filled into the mounting base 2 to fix the limiting retainer 14 and the insulating support 13 to the mounting base 2.
[0052] Some embodiments of this utility model also disclose an aerosol generating device, specifically a heated non-combustible aerosol generating device, including the heating element structure and power supply device described in any of the above embodiments. The power supply device supplies power to the heating element structure. When the heating element structure is energized, it heats the contained aerosol generating matrix with infrared light, resulting in good atomization stability and excellent atomized taste.
[0053] The aerosol generating matrix is removably housed in the heated non-combustible aerosol generating device. The aerosol generating matrix can be a columnar aerosol generating product, specifically a solid material made from plant leaves and / or stems, and aroma components can be further added to the solid material. Understandably, in some other embodiments, the aerosol generating matrix can be a sheet-like or cylindrical aerosol generating product, and this is not limited thereto.
[0054] By implementing this utility model, the following beneficial effects can be achieved:
[0055] The limiting and retaining member 14 of this utility model can stably center the insulating support member 13 inside the tube body 11, and form a gap between part of the insulating support member 13 and the tube body 11. When falling, it can reduce the swing of the insulating support member 13, and the gap can avoid the impact of the insulating support member 13 on the tube body 11 to a certain extent, thereby improving the problem of deformation or cracking of the tube body 11 of the heating element 1 when falling.
[0056] It is understood that the above embodiments only illustrate some implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can freely combine the above embodiments or technical features without departing from the concept of this utility model, and can also make several modifications and improvements, all of which fall within the protection scope of this utility model. That is, the embodiments described "in some embodiments" can be freely combined with any of the preceding and following embodiments. Therefore, all equivalent transformations and modifications made within the scope of the claims of this utility model should fall within the coverage of the claims of this utility model.
Claims
1. A heating element structure, characterized in that, It includes a heating element (1), which includes a tube (11), a heating body (12), an insulating support (13), and a limiting retainer (14); The heating body (12), at least a portion of the insulating support (13) and at least a portion of the limiting retainer (14) are disposed inside the tube (11), the insulating support (13) supports the heating body (12); the limiting retainer (14) surrounds at least a portion of the outer side wall of the insulating support (13); The limiting retainer (14) is tightly fitted to the inner wall of the tube body (11), and at least part of the insulating support (13) has a gap with the inner wall of the tube body (11).
2. The heating element structure according to claim 1, characterized in that, The insulating support (13) has a continuous first segment (131) and a second segment (132) in its axial direction, the outer diameter of the first segment (131) being larger than the outer diameter of the second segment (132) to form a step (133); The limiting retainer (14) is disposed on at least a portion of the outer side wall of the second segment (132); There is a gap between the outer wall of the first segment (131) and the inner wall of the tube (11).
3. The heating element structure according to claim 2, characterized in that, One end of the limiting retainer (14) abuts against the step (133).
4. The heating element structure according to claim 1, characterized in that, The length of the portion of the insulating support (13) that does not enclose the limiting retainer (14) is greater than or equal to 5 mm.
5. The heating element structure according to claim 1, characterized in that, The gap between the outer wall of the insulating support (13) and the inner wall of the tube (11) is greater than or equal to 0.01 mm.
6. The heating element structure according to claim 1, characterized in that, The limiting retainer (14) is a sleeve made of high temperature resistant and flexible material; or, the limiting retainer (14) is a filler formed by filling between the insulating support (13) and the tube (11).
7. The heating element structure according to claim 1, characterized in that, The thickness of the limiting retainer (14) is greater than or equal to 0.03 mm and less than or equal to 1.0 mm.
8. The heating element structure according to claim 1, characterized in that, The heating element structure also includes: Mounting base (2), which surrounds one end of the tube body (11).
9. The heating element structure according to claim 8, characterized in that, The heating element structure also includes: A base (3) is located on the mounting base (2) at one end away from the heating body (12); a portion of the limiting retainer (14) and a portion of the insulating support (13) are located outside the tube body (11) and pass through the mounting base (2) and the base (3); the base (3) fixes the limiting retainer (14) and the insulating support (13) to the mounting base (2).
10. An aerosol generating device, characterized in that, Includes the heating element structure as described in any one of claims 1-9.