Heating components and aerosol generating device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-08-14
AI Technical Summary
然而，加热组件在工作过程中产生的热量可能会使弹簧天线和基材发生形变，导致弹簧天线的匝间距(即相邻线圈的间距)发生变化，引发频点偏移
[0020]区别于现有技术，本申请提供的加热组件及气溶胶生成装置的有益效果是：通过在管状基材的周向侧壁上设置有定位结构，将弹簧天线沿定位结构的一端旋转绕设于安装路径中，定位结构可以对弹簧天线的各线圈进行限位，使得弹簧天线与管状基材之间的位置相对固定，减少弹簧天线的匝间距(即相邻线圈的间距)在加热组件工作过程中发生变化的情况，可改善频点偏移问题，减少因频点偏移导致加热时间增加的情况，提高加热组件的能量利用率。
Smart Images
Figure CN224627609U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aerosol generation technology, and in particular to a heating component and an aerosol generating device. Background Technology
[0002] In existing aerosol generation devices, the spring antenna of the heating component is typically mounted on the circumferential sidewall of the substrate. However, the heat generated by the heating component during operation may cause deformation of the spring antenna and the substrate, resulting in a change in the turn spacing (i.e., the spacing between adjacent coils) of the spring antenna and causing a frequency shift. This frequency shift causes the heating position to deviate from the smoke emission point of the aerosol-generated product, preventing the actual frequency of the smoke emission point from reaching the preset value. Ultimately, this requires a longer heating time and reduces energy efficiency. Utility Model Content
[0003] The purpose of this application is to provide a heating component and an aerosol generating device to improve the energy utilization rate of the heating component.
[0004] The first technical solution adopted in this application is: providing a heating assembly for heating an aerosol generating article to generate an aerosol, the heating assembly including a tubular substrate and a spring antenna. The tubular substrate defines a cavity for housing the aerosol generating article, and a positioning structure is provided on the circumferential sidewall of the tubular substrate, the positioning structure defining an installation path; the spring antenna is rotatably wound around one end of the positioning structure in the installation path, and the positioning structure is used to fix each coil of the spring antenna, the spring antenna being used to transmit radio frequency energy into the cavity, thereby heating at least a portion of the aerosol generating article located in the cavity.
[0005] In some embodiments, the positioning structure includes a plurality of positioning units protruding from the circumferential sidewall of the tubular substrate, each positioning unit being arranged along the axial direction of the tubular substrate; the positioning unit includes a plurality of evenly distributed protrusions, with a limiting groove formed between two adjacent protrusions.
[0006] In some implementations, the width of the limiting slot and the length or diameter of the spring antenna satisfy the following relationship:
[0007] D2≤D1≤(1+5%)D2
[0008] Where D1 is the width of the limiting groove and D2 is the length or diameter of the spring antenna.
[0009] In some embodiments, the positioning structure includes four positioning units protruding from the circumferential sidewall of the tubular substrate.
[0010] In some implementations, the number of protrusions in each positioning unit is m, and the number of turns of the spring antenna is n, where m = n + 1.
[0011] In some embodiments, the positioning structure includes a helical groove recessed inward along the circumferential sidewall of the tubular substrate, wherein the width of the helical groove and the length or diameter of the spring antenna satisfy the following relationship:
[0012] D2≤D3≤(1+5%)D2
[0013] Where D3 is the width of the spiral groove and D2 is the length or diameter of the spring antenna.
[0014] In some embodiments, the heating assembly further includes a shielding cover that is fitted around the tubular substrate and the spring antenna.
[0015] In some implementations, the distance between the spring antenna and the inner wall of the shield is a, where a ≥ 4 mm.
[0016] In some embodiments, the heating assembly further includes a heat insulation cover that is fitted around the tubular substrate and the spring antenna and located inside the shielding cover.
[0017] In some embodiments, the spring antenna includes a coiled section and a connecting section. The coiled section is wound around the circumferential sidewall of the tubular substrate, and one end of the connecting section is connected to the coiled section, while the other end is used to receive radio frequency signals.
[0018] In some embodiments, the heating assembly further includes a shield and a fixing member. The shield is sleeved around the periphery of the connecting segment and spaced apart from the connecting segment. The shield is a tubular structure with openings at both ends. The fixing member is sleeved around the periphery of the connecting segment and inserted into the opening of the shield to fix the connecting segment relative to the shield.
[0019] The second technical solution adopted in this application is: to provide an aerosol generating device, including a battery assembly and any of the heating assemblies described in the above embodiments, wherein the battery assembly is used to provide electrical energy to the heating assemblies.
[0020] Unlike existing technologies, the heating component and aerosol generating device provided in this application have the following advantages: by providing a positioning structure on the circumferential sidewall of the tubular substrate, the spring antenna is rotated and wound around one end of the positioning structure in the installation path. The positioning structure can limit the position of each coil of the spring antenna, so that the position between the spring antenna and the tubular substrate is relatively fixed, reducing the change of the turn spacing (i.e., the spacing between adjacent coils) of the spring antenna during the operation of the heating component. This can improve the frequency offset problem, reduce the increase in heating time caused by frequency offset, and improve the energy utilization rate of the heating component. Attached Figure Description
[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0022] Figure 1 This is a schematic diagram of the structure of a heating assembly according to some embodiments of this application;
[0023] Figure 2 yes Figure 1 Exploded view;
[0024] Figure 3 These are schematic diagrams of the heating components according to other embodiments of this application;
[0025] Figure 4 yes Figure 3 Exploded view;
[0026] Figure 5 This is a schematic diagram of the structure of a heating assembly according to some embodiments of this application;
[0027] Figure 6 along Figure 5 A cross-sectional view along the AA direction;
[0028] Figure 7 yes Figure 5 Exploded view;
[0029] Figure 8 yes Figure 7 Cross-sectional view of the central insulation cover along the BB direction;
[0030] Figure 9 This is a schematic diagram of the structure of the clamping member according to some embodiments of this application;
[0031] Figure 10 This is a schematic diagram of the heating assembly when the spring antenna in some embodiments is constructed as a flat coil;
[0032] Figure 11 It is along Figure 10 A cross-sectional view along the CC direction;
[0033] Figure 12 This is a schematic diagram of the heating assembly when the spring antenna of some embodiments of this application is constructed as a circular coil;
[0034] Figure 13 It is along Figure 12 A cross-sectional view along the DD direction.
[0035] Marker explanation:
[0036] Heating component 10, tubular substrate 1011, cavity 10111, positioning structure 10112, positioning unit 10112a, protrusion 10112b, limiting groove 10112c, spiral groove 10112d, spring antenna 1012, coiled section 1012a, connecting section 1012b, shielding cover 102, first opening 1023, shielding upper cover 1025, shielding lower cover 1026, heat insulation cover 103, first heat insulation chamber 103a, second heat insulation chamber 103b, bottom wall 1031, annular side wall 1032, arc-shaped protrusion 10311, shielding component 1041, fixing component 1042, clamping component 107, cylinder 1071, disc 1072, first protrusion 10711, second protrusion 10712, upper end cover 108, lower end cover 109, second opening 1081. Detailed Implementation
[0037] 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.
[0038] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. 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 relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications 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.
[0039] 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.
[0040] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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 communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0042] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0043] As used herein, the term "aerosol generating article" refers to an article comprising an aerosol-forming matrix intended to be heated rather than burned to release volatile compounds that can form aerosols. Aerosols formed by heating an aerosol-forming matrix may contain fewer known hazardous components than aerosols generated by combustion or pyrolytic degradation of the aerosol-forming matrix. In one embodiment, the aerosol generating article is removable from the aerosol generating apparatus.
[0044] The aerosol-forming matrix is preferably a tobacco-containing material from which volatile compounds are released upon heating; alternatively, it can be a non-tobacco material suitable for electrically heated smoking. The aerosol-forming matrix is preferably a solid matrix, which may include one or more of the following: vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, in powder, granules, fragments, strips, or flakes; or, the solid matrix may contain additional tobacco or non-tobacco volatile flavor compounds to be released upon heating. A suitable aerosol-forming matrix may be a cigarette internally filled with tobacco material.
[0045] In other embodiments, the term "aerosol-forming article" refers to a container or box capable of containing an aerosol-forming matrix, or other carrier capable of holding the aerosol-forming matrix. The aerosol-forming matrix contained in the aerosol-forming article may be a liquid component or a combination of liquid and solid components. Suitable aerosol-forming matrices include, for example, polyols such as triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols such as mono, di, or triacetic acids of glycerol; and fatty acid esters of mono, di, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Preferred aerosol-forming matrices are polyhydroxy alcohols or mixtures thereof, such as triethylene glycol, 1,3-butanediol, and most preferably glycerol. The aerosol-forming matrix may include other additives and ingredients, such as fragrances. In some alternative examples, the aerosol generating article also includes a liquid holding element for adsorbing and retaining the liquid matrix. Suitable liquid holding elements are made of flexible fibers such as cotton fibers, non-woven fabrics, sponges, etc. In other examples, the liquid holding element is made of porous materials such as microporous ceramics, microporous glass, or microporous metals.
[0046] As used herein, the term "aerosol generating apparatus" is an apparatus that is engaged with or interacts with an aerosol generating article to form an inhalable aerosol.
[0047] The aerosol generating apparatus includes a heating component 10, which is used to heat the aerosol forming matrix of the aerosol generating article to generate aerosol.
[0048] Please refer to the following: Figures 1-6 , Figure 1 This is a schematic diagram of the structure of a heating assembly according to some embodiments of this application. Figure 2 yes Figure 1 Disassembly diagram, Figure 3 These are schematic diagrams of the heating assembly according to other embodiments of this application. Figure 4 yes Figure 3 Disassembly diagram, Figure 5 This is a schematic diagram of the structure of a heating assembly according to some embodiments of this application. Figure 6 It is along Figure 5A cross-sectional view along the AA direction shows that this application provides a heating assembly 10 for heating an aerosol generating article to generate an aerosol. The heating assembly 10 includes a tubular substrate 1011 and a spring antenna 1012. The tubular substrate 1011 defines a cavity 10111 for accommodating the aerosol generating article, and a positioning structure 10112 is provided on the circumferential sidewall of the tubular substrate 1011. The positioning structure 10112 defines an installation path (i.e.,...). Figure 1 or Figure 3 The spring antenna 1012 is rotatably wound around one end of the positioning structure 10112 in the installation path, and the positioning structure 10112 is used to fix each coil of the spring antenna 1012. The spring antenna 1012 is used to transmit radio frequency energy to the cavity 10111, thereby heating at least a portion of the aerosol generating article located in the cavity 10111.
[0049] In the technical solution of this application embodiment, by providing a positioning structure 10112 on the circumferential sidewall of the tubular substrate 1011, the spring antenna 1012 is rotated and wound around one end of the positioning structure 10112 in the installation path. The positioning structure 10112 can limit the position of each coil of the spring antenna 1012, so that the position between the spring antenna 1012 and the tubular substrate 1011 is relatively fixed, reducing the change of the turn spacing (i.e., the spacing between adjacent coils) of the spring antenna 1012 during the operation of the heating assembly 10, which can improve the frequency offset problem, reduce the increase in heating time caused by frequency offset, and improve the energy utilization rate of the heating assembly 10.
[0050] The heating assembly 10 includes a tubular substrate 1011 and a spring antenna 1012. The tubular substrate 1011 serves as a support structure for the spring antenna 1012, and a cavity 10111 for accommodating the aerosol-generated article is formed inside it. A positioning structure 10112 on the circumferential sidewall of the tubular substrate 1011 provides an installation path for the spring antenna 1012. The spring antenna 1012 is rotatably mounted in the installation path and can emit radio frequency energy into the cavity 10111 during operation, thereby heating at least a portion of the aerosol-generated article located in the cavity 10111. The positioning structure 10112 can be a protrusion protruding from the circumferential sidewall of the tubular substrate 1011, or a groove recessed inward along the circumferential sidewall of the tubular substrate 1011.
[0051] In some implementations, please refer to Figure 1 and Figure 2The positioning structure 10112 includes a plurality of positioning units 10112a protruding from the circumferential sidewall of the tubular substrate 1011, each positioning unit 10112a being arranged along the axial direction of the tubular substrate 1011; the positioning unit 10112a includes a plurality of uniformly distributed protrusions 10112b, and a limiting groove 10112c is formed between two adjacent protrusions 10112b.
[0052] In the technical solution of this application embodiment, the positioning structure 10112 may include a plurality of positioning units 10112a protruding from the circumferential sidewall of the tubular substrate 1011. By setting a plurality of positioning units 10112a, the fixing effect of the positioning structure 10112 on the spring antenna 1012 is improved. Each positioning unit 10112a is arranged along the axial direction of the tubular substrate 1011. The positioning unit 10112a includes a plurality of evenly distributed protrusions 10112b. By setting a plurality of evenly distributed protrusions 10112b, the spring antenna 1012 can be evenly wound around the circumferential sidewall of the tubular substrate 1011, thereby keeping the turn spacing of the spring antenna 1012 consistent and reducing the frequency shift problem caused by uneven turn spacing. By forming a limiting groove 10112c between two adjacent protrusions 10112b, each coil of the spring antenna 1012 can be embedded in the corresponding limiting groove 10112c, thus confining each coil of the spring antenna 1012 between the two protrusions 10112b. This keeps the turn spacing of the spring antenna 1012 relatively fixed, reducing the risk of changes in turn spacing during heating and minimizing frequency shifts caused by changes in turn spacing, which could affect the energy utilization of the heating component 10. Furthermore, the presence of the positioning structure 10112 can improve the installation efficiency and accuracy of the spring antenna 1012. By pre-designing the position and shape of the positioning structure 10112, each coil of the spring antenna 1012 can be quickly and accurately fixed in its corresponding position on the tubular substrate 1011 during installation, thereby reducing the time and cost of manual operation and improving the installation quality of the product.
[0053] In one specific embodiment, one end of the spring antenna 1012 is wound along the bottom insertion port of the positioning structure 10112 by manual operation or machine until the coiled section 1012a of the spring antenna 1012 is fixedly installed in the positioning structure 10112. At this time, each turn of the coil of the spring antenna 1012 is restricted between the two protrusions 10112b corresponding to the positioning unit 10112a.
[0054] The positioning structure 10112 and the tubular substrate 1011 can be integrally formed or processed separately. After the positioning structure 10112 and the tubular substrate 1011 are formed, they are then connected together by welding, gluing or other methods. The embodiments of this application do not specifically limit this.
[0055] In some embodiments, the width of the limiting groove 10112c and the length or diameter of the spring antenna 1012 satisfy the following relationship:
[0056] D2≤D1≤(1+5%)D2
[0057] Where D1 is the width of the limiting groove 10112c, and D2 is the length or diameter of the spring antenna 1012.
[0058] like Figure 1 As shown, the width of the limiting groove 10112c refers to the distance between two adjacent protrusions 10112b along the axial direction of the tubular substrate 1011. Please refer to... Figure 10 and Figure 11 , Figure 10 These are schematic diagrams of the heating assembly when the spring antenna is constructed as a flat coil in some embodiments. Figure 11 It is along Figure 10 The cross-sectional view along the CC direction shows that the length of the spring antenna 1012 refers to the cross-sectional length of one turn of the spring antenna 1012 parallel to the axis of the tubular substrate 1011 when the spring antenna 1012 is constructed as a flat coil. Please refer to... Figure 12 and Figure 13 , Figure 12 This is a schematic diagram of the heating assembly when the spring antenna of some embodiments of this application is constructed as a circular coil. Figure 13 It is along Figure 12 The cross-sectional view in the DD direction shows that the diameter of the spring antenna 1012 refers to the cross-sectional diameter of one turn of the spring antenna 1012 in the direction parallel to the axis of the tubular substrate 1011 when the spring antenna 1012 is constructed as a circular coil.
[0059] In the technical solution of this application embodiment, the width of the limiting groove 10112c and the length or diameter of the spring antenna 1012 satisfy the above relationship. The width of the limiting groove 10112c is well matched with the length or diameter of the spring antenna 1012, which is beneficial for fixing the spring antenna 1012 to the positioning structure 10112. Specifically, the width of the limiting groove 10112c is well matched with the length or diameter of the spring antenna 1012, so that the spring antenna 1012 can be embedded in the limiting groove 10112c, reducing the problem of increased installation difficulty caused by the limiting groove 10112c being too narrow, thereby reducing the installation difficulty. The width of the limiting slot 10112c is well matched with the length or diameter of the spring antenna 1012, which reduces the possibility of the spring antenna 1012 changing position due to the limiting slot 10112c being too wide. This allows the spring antenna 1012 to be more securely fixed in the limiting slot 10112c, thereby making the turn spacing of the spring antenna 1012 relatively fixed. This reduces the risk of the turn spacing changing during the heating process and reduces the frequency shift caused by the change in turn spacing, which would affect the energy utilization rate of the heating component 10.
[0060] Specifically, the relationship between the width of the limiting groove 10112c and the length or diameter of the spring antenna 1012 can be D1 = D2, D1 = 1.01D2, D1 = 1.02D2, D1 = 1.03D2, D1 = 1.04D2, D1 = 1.05D2, etc.
[0061] In some embodiments, the positioning structure 10112 includes four positioning units 10112a protruding from the circumferential sidewall of the tubular substrate 1011.
[0062] In the technical solution of this application embodiment, the positioning structure 10112 described above is used to further improve the fixing effect of the positioning structure 10112. By setting four positioning units 10112a, multiple positions of the spring antenna 1012 can be limited. Each positioning unit 10112a corresponds to a different position of the spring antenna 1012, further improving the fixing effect of the positioning structure 10112. The four positioning units 10112a can be evenly distributed on the circumferential sidewall of the tubular substrate 1011, thereby achieving a better fixing effect.
[0063] In some alternative embodiments, the number of positioning units 10112a is not limited to four. When the number of positioning units 10112a is less than four, costs can be saved; however, the fixing effect is relatively poor, and the turn spacing of the spring antenna 1012 is still likely to change, resulting in frequency shift. When the number of positioning units 10112a is greater than four, the fixing effect can be further improved, but during the installation of the spring antenna 1012 on the tubular substrate 1011, the friction between the positioning structure 10112 and the spring antenna 1012 increases, thereby increasing the installation difficulty of the spring antenna 1012. Based on this, considering both the fixing effect and the installation difficulty, it is preferable that the positioning structure 10112 includes four positioning units 10112a evenly distributed on the circumferential sidewall of the tubular substrate 1011.
[0064] In some embodiments, the number of protrusions 10112b in each positioning unit 10112a is m, and the number of turns of the spring antenna 1012 is n, where m = n + 1.
[0065] In the technical solution of this application embodiment, the number of protrusions 10112b of each positioning unit 10112a and the number of turns of the spring antenna 1012 satisfy the above relationship, so that only one turn of spring antenna 1012 needs to be embedded between two adjacent protrusions 10112b of each positioning unit 10112a, thereby avoiding the situation where multiple turns of spring antenna 1012 are embedded between the same two protrusions 10112b, and reducing the installation difficulty.
[0066] In some implementations, please refer to Figure 3 and Figure 4 The positioning structure 10112 includes a spiral groove 10112d recessed inward along the circumferential sidewall of the tubular substrate 1011. The width of the spiral groove 10112d and the length or diameter of the spring antenna 1012 satisfy the following relationship:
[0067] D2≤D3≤(1+5%)D2
[0068] Where D3 is the width of the spiral groove 10112d, and D2 is the length or diameter of the spring antenna 1012.
[0069] like Figure 4 As shown, the width of the spiral groove 10112d refers to the height of the spiral groove 10112d along the axial direction of the tubular substrate 1011. Please refer to [link / reference]. Figure 11 The length of the spring antenna 1012 refers to the cross-sectional length of one turn of the spring antenna 1012 parallel to the axis of the tubular substrate 1011 when the spring antenna 1012 is constructed as a flat coil. Please refer to [link to relevant documentation]. Figure 13 The diameter of the spring antenna 1012 refers to the cross-sectional diameter of one turn of the spring antenna 1012 parallel to the axial direction of the tubular substrate 1011 when the spring antenna 1012 is constructed as a circular coil.
[0070] In the technical solution of this application embodiment, the positioning structure 10112 includes a spiral groove 10112d recessed inward along the circumferential sidewall of the tubular substrate 1011, allowing the spring antenna 1012 to be embedded within the spiral groove 10112d, thereby fixing the spring antenna 1012 to the positioning structure 10112. The spacing of the spiral grooves 10112d and the length or diameter of the spring antenna 1012 satisfy the above-mentioned relationship. The spacing of the spiral grooves 10112d is well matched with the length or diameter of the spring antenna 1012, which is beneficial for fixing the spring antenna 1012 to the positioning structure 10112. Specifically, the spacing of the spiral grooves 10112d is well matched with the length or diameter of the spring antenna 1012, allowing the spring antenna 1012 to be embedded within the spiral grooves 10112d, reducing the problem of increased installation difficulty caused by the spiral grooves 10112d being too narrow, thereby reducing the installation difficulty. The spacing of the spiral grooves 10112d is well matched with the length or diameter of the spring antenna 1012, which reduces the possibility of the spring antenna 1012 changing position due to the spiral grooves 10112d being too wide. This allows the spring antenna 1012 to be more securely fixed within the spiral grooves 10112d, thereby making the turn spacing of the spring antenna 1012 relatively fixed. This reduces the risk of changes in the turn spacing during heating and reduces the frequency shift caused by changes in the turn spacing, which in turn affects the energy utilization rate of the heating component 10.
[0071] Specifically, the relationship between the spacing of the spiral grooves 10112d and the length or diameter of the spring antenna 1012 can be D3 = D2, D3 = 1.01D2, D3 = 1.02D2, D3 = 1.03D2, D3 = 1.04D2, D3 = 1.05D2, etc.
[0072] In some implementations, please refer to Figure 6 The heating assembly 10 also includes a shield 102, which is fitted around the tubular substrate 1011 and the spring antenna 1012.
[0073] In the technical solution of this application embodiment, the shielding cover 102 is sleeved on the outer periphery of the tubular substrate 1011 and the spring antenna 1012, which plays an electromagnetic shielding role, reduces the interference of external electromagnetic waves on the spring antenna 1012, and the shielding cover 102 can reflect and absorb internal electromagnetic waves, confining the electromagnetic waves inside the shielding cover 102, reducing the energy radiated outward, improving energy utilization, and reducing the risk of electromagnetic radiation.
[0074] In some embodiments, the distance between the spring antenna 1012 and the inner wall of the shield 102 is a, where a ≥ 4 mm.
[0075] In the technical solution of this application embodiment, the distance between the spring antenna 1012 and the inner wall of the shield 102 is within the above range, and the radio frequency energy can be effectively radiated to the aerosol generating product, so that more radio frequency energy is absorbed by the aerosol generating product, thereby improving the radio frequency radiation efficiency of the heating component 10.
[0076] like Figure 6 As shown, the distance between the spring antenna 1012 and the inner wall of the shielding cover 102 refers to the distance between the spring antenna 1012 and the inner wall of the shielding cover 102 in the direction perpendicular to the axis of the tubular substrate 1011. The distance between the spring antenna 1012 and the inner wall of the shielding cover 102 can be 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.8mm, 5mm, 6mm, 8mm, 10mm, 15mm, etc., or it can be a range of any two of the above values, such as 4mm~4.8mm, 4.5mm~8mm, 6mm~15mm, etc.
[0077] In some implementation methods, please refer to the following: Figure 6 and Figure 7 , Figure 7 yes Figure 5The exploded view shows that the shielding cover 102 includes a shielding upper cover 1025 and a shielding lower cover 1026. The shielding lower cover 1026 is a cylindrical structure with an opening at the top. The shielding upper cover 1025 covers the upper opening of the shielding lower cover 1026. The shielding upper cover 1025 is provided with a first opening 1023. A second chamber (not shown) is defined between the shielding lower cover 1026 and the tubular substrate 1011.
[0078] In the technical solution of this application embodiment, the shielding cover 102 is divided into a shielding upper cover 1025 and a shielding lower cover 1026. The tubular substrate 1011 and the spring antenna 1012 located inside the shielding cover 102 can be first installed inside the shielding lower cover 1026. Then, by covering the upper cover 1025 with the upper opening of the lower cover 1026, the heating component 10 can be installed, making the installation of the heating component 10 more convenient and quick. The shielding upper cover 1025 is provided with a first opening 1023, so that at least part of the aerosol generating product can pass through the first opening 1023 of the shielding upper cover 1025 and be inserted into the cavity 10111, thereby realizing the heating of the aerosol generating product. A second chamber is defined between the shielding lower cover 1026 and the tubular substrate 1011, so that there is a certain distance between the shielding lower cover 1026 and the tubular substrate 1011, which is beneficial to improving the electromagnetic shielding performance of the shielding cover 102, thereby improving the heating stability of the heating component 10.
[0079] In some implementations, please refer to Figure 6 and Figure 7 The heating assembly 10 also includes a heat insulation cover 103, which is fitted around the tubular substrate 1011 and the spring antenna 1012 and located inside the shielding cover 102.
[0080] In the technical solution of this application embodiment, by adding a heat insulation cover 103, which is fitted around the tubular substrate 1011 and the spring antenna 1012 and located inside the shielding cover 1025, the heat of the heating area can be reduced to diffuse to the outside, the heating efficiency of the heating component 10 can be improved, and the aerosol generation product can be fully atomized, thereby improving the aerosol generation efficiency.
[0081] The heat insulation cover 103 can divide the second chamber into a first heat insulation chamber 103a and a second heat insulation chamber 103b. One of the first heat insulation chamber 103a and the second heat insulation chamber 103b is located between the heat insulation cover 103 and the tubular substrate 1011, and the other is located between the heat insulation cover 103 and the shielding cover 1026. By forming a double-layer heat insulation chamber, the heating efficiency of the heating component 10 is further improved, and the aerosol generation efficiency is improved.
[0082] Optionally, air is filled into the first insulation chamber 103a and the second insulation chamber 103b. Air has a low thermal conductivity, which can reduce the rate at which heat from the heating area diffuses to the outside, further improving the heating efficiency of the heating component 10 and increasing the aerosol generation efficiency.
[0083] The heat insulation cover 103 is a cylindrical structure with an opening at the top, which allows the heat insulation cover 103 to be directly fitted onto the outer periphery of the tubular substrate 1011 and the spring antenna 1012, making the assembly of the heat insulation cover 103, the tubular substrate 1011 and the spring antenna 1012 more convenient and quick.
[0084] In some implementations, please refer to Figure 8 , Figure 8 yes Figure 7 A cross-sectional view of the insulation cover along the BB direction. The insulation cover 103 includes a bottom wall 1031 and an annular side wall 1032 connected thereto. The bottom wall 1031 is provided with two arc-shaped protrusions 10311, which are used to receive and clamp the bottom end of the tubular substrate 1011.
[0085] In the technical solution of this application embodiment, the heat insulation cover 103 with the above-described structure forms a heat insulation chamber between the annular sidewall 1032 and the tubular substrate 1011, and also forms a heat insulation chamber between the annular sidewall 1032 and the shielding lower cover 1026, namely the first heat insulation chamber 103a and the second heat insulation chamber 103b. By forming a double-layer heat insulation chamber, the heating efficiency of the heating component 10 is further improved, and the aerosol generation efficiency is improved. The bottom wall 1031 is provided with an arc-shaped protrusion 10311 for receiving and clamping the bottom end of the tubular substrate 1011, which can fix the bottom of the tubular substrate 1011. Since the spring antenna 1012 is located on the circumferential sidewall of the tubular substrate 1011, a change in the position of the tubular substrate 1011 will cause the position of the spring antenna 1012 to shift, thereby affecting the heating stability of the heating component 10, and consequently causing uneven heating of the aerosol generation product and insufficient atomization. Therefore, by providing an arc-shaped protrusion 10311 on the bottom wall 1031 of the heat insulation cover 103 for receiving and clamping the bottom end of the tubular substrate 1011, the phenomenon that the aerosol generated product cannot be fully atomized due to uneven heating caused by changes in the position of the tubular substrate 1011 during use can be reduced.
[0086] The two arc-shaped protrusions 10311 can be connected to form a closed ring structure or a non-closed structure. They can be distributed symmetrically or asymmetrically. This application does not specifically limit this.
[0087] In some implementations, please refer to Figure 6 and Figure 7The heating assembly 10 also includes a clamping member 107, which is located inside the shielding cover 102. The clamping member 107 abuts against the tubular substrate 1011 and is used to clamp the aerosol-generated article.
[0088] In the technical solution of this application embodiment, by adding a clamping member 107, the tubular substrate 1011 and the aerosol generating product can be fixed. The clamping member 107 abuts against the tubular substrate 1011 and is used to clamp the aerosol generating product, which can reduce the phenomenon that the aerosol generating product cannot be fully atomized due to uneven heating caused by changes in the position of the tubular substrate 1011 or the aerosol generating product during use.
[0089] In some implementations, please refer to Figure 9 , Figure 9 This is a schematic diagram of the structure of a clamping member according to some embodiments of this application. The clamping member 107 includes a cylindrical body 1071 abutting the outer periphery of a tubular substrate 1011 and a disc 1072 located at one end of the cylindrical body 1071. A first protrusion 10711 is provided on the inner wall of the cylindrical body 1071 near the disc 1072. The first protrusion 10711 is used to abut against the aerosol generating product. The disc 1072 abuts against the shielding cover 102.
[0090] In the technical solution of this application embodiment, a clamping member 107 with the above-described structure is used. The cylindrical body 1071 of the clamping member 107 abuts against the outer periphery of the tubular substrate 1011, thereby fixing the tubular substrate 1011. A first protrusion 10711 is provided on the inner wall of the cylindrical body 1071 near the disc 1072. The first protrusion 10711 abuts against the aerosol generating product, thereby fixing the aerosol generating product. The disc 1072 abuts against the shielding cover 102, so that the clamping member 107 can be fixedly disposed inside the shielding cover 102, thereby realizing the fixing of the tubular substrate 1011 and the aerosol generating product by the clamping member 107.
[0091] In some embodiments, the clamping member 107 further includes a second protrusion 10712 that extends from the outer wall of the cylinder 1071 toward the heat insulation cover 103 and is used to abut against the heat insulation cover 103.
[0092] In the technical solution of this application embodiment, by setting a second protrusion 10712, the second protrusion 10712 extends from the outer wall of the cylinder 1071 to the heat insulation cover 103 and abuts against the heat insulation cover 103, the heat insulation cover 103 can be fixed, so that the heat insulation cover 103 is fixedly sleeved on the outer periphery of the tubular substrate 1011 and the spring antenna 1012.
[0093] In some implementations, please refer to Figure 6 and Figure 7The heating assembly 10 also includes an upper end cover 108 and a lower end cover 109. The lower end cover 109 is a cylindrical structure with an opening at the top. The upper end cover 108 covers the upper opening of the lower end cover 109. The upper end cover 108 is provided with a second opening 1081.
[0094] In the technical solution of this application embodiment, the heating assembly 10 further includes an upper end cover 108 and a lower end cover 109. The upper end cover 108 and the lower end cover 109 are used to fix and protect the shielding cover 102. The lower end cover 109 is a cylindrical structure with an opening at the top. After the shielding cover 102 and the components inside the shielding cover 102 are assembled, the lower end cover 109 can be directly fitted onto the outer periphery of the lower shielding cover 1026, and then the upper end cover 108 is closed onto the upper opening of the lower end cover 109 to realize the installation of the heating assembly 10. Alternatively, the lower shielding cover 1026 is embedded inside the lower end cover 109. After the components located inside the lower shielding cover 1026 are installed, the upper shielding cover 1025 is closed onto the upper opening of the lower shielding cover 1026, and then the upper end cover 108 is closed onto the upper opening of the lower end cover 109 to realize the installation of the heating assembly 10. The upper end cover 108 and the lower end cover 109 make the installation of the heating assembly 10 more convenient and quick. The upper cover 108 is provided with a second opening 1081, so that at least part of the aerosol-generating product can be inserted into the cavity 10111 through the second opening 1081 of the upper cover 108, thereby realizing the heating of the aerosol-generating product.
[0095] In some implementations, please refer to Figure 1 The spring antenna 1012 includes a coiled section 1012a and a connecting section 1012b. The coiled section 1012a is wound around the circumferential sidewall of the tubular substrate 1011. One end of the connecting section 1012b is connected to the coiled section 1012a, and the other end is used to receive radio frequency signals, which can be generated by a microwave source (not shown).
[0096] In the technical solution of this application embodiment, the spring antenna 1012 includes a coiled section 1012a and a connecting section 1012b. The coiled section 1012a, which is wound around the circumferential sidewall of the tubular substrate 1011, is used to transmit radio frequency energy to the cavity 10111 of the tubular substrate 1011, thereby heating at least a portion of the aerosol-generated article located in the cavity 10111 of the tubular substrate 1011. A microwave source is used to transmit radio frequency signals to the spring antenna 1012. By connecting one end of the connecting section 1012b to the coiled section 1012a and receiving the radio frequency signal at the other end, the connecting section 1012b can transmit the radio frequency signal received from the microwave source to the coiled section 1012a, thereby enabling the coiled section 1012a to transmit radio frequency energy to the cavity 10111 of the tubular substrate 1011.
[0097] The coiled section 1012a and the connecting section 1012b can be integrally formed or processed separately. After the coiled section 1012a and the connecting section 1012b are formed, they are then connected together by welding, gluing or other methods. The embodiments of this application do not specifically limit this.
[0098] In some implementations, please refer to Figure 6 and Figure 7 The heating assembly 10 also includes a shield 1041 and a fixing member 1042. The shield 1041 is sleeved on the outer periphery of the connecting section 1012b and spaced apart from the connecting section 1012b. The shield 1041 is a tubular structure with openings at both ends. The fixing member 1042 is sleeved on the outer periphery of the connecting section 1012b and inserted into the opening of the shield 1041 to fix the connecting section 1012b relative to the shield 1041.
[0099] In the technical solution of this application embodiment, by adding a shielding member 1041, which is sleeved on the outer periphery of the connecting segment 1012b, the shielding member 1041 serves to shield electromagnetic interference, thereby protecting the connecting segment 1012b and reducing external electromagnetic interference to the connecting segment 1012b. This allows the connecting segment 1012b to transmit radio frequency signals more stably, improving the heating stability of the heating assembly 10. The shielding member 1041 and the connecting segment 1012b are spaced apart to avoid contact and conductivity affecting the heating performance of the heating assembly 10. The shielding member 1041 is a tubular structure with openings at both ends, which facilitates the installation of the fixing member 1042.
[0100] By adding a fastener 1042, which is fitted around the outer periphery of the connecting segment 1012b and inserted into the opening of the shielding component 1041, the fastener 1042 serves to fix the shielding component 1041. The fastener 1042 can fix the shielding component 1041 to the outer periphery of the connecting segment 1012b, so that the position between the connecting segment 1012b and the shielding component 1041 is relatively fixed, which is beneficial to achieving the shielding performance of the shielding component 1041.
[0101] The second technical solution adopted in this application is: to provide an aerosol generating device, including a battery assembly (not shown) and any of the heating components 10 as described in the above embodiments, wherein the battery assembly is used to provide electrical energy to the heating component 10.
[0102] In the technical solution of this application embodiment, the aerosol generating device includes a battery assembly and a heating assembly 10. The battery assembly is used to provide electrical energy to the heating assembly 10. The heating assembly 10 includes a tubular substrate 1011 and a spring antenna 1012. The tubular substrate 1011 defines a cavity 10111 for accommodating the aerosol-generated article, and a positioning structure 10112 is provided on the circumferential sidewall of the tubular substrate 1011, defining an installation path. The spring antenna 1012 is rotatably wound around one end of the positioning structure 10112 in the installation path, and the positioning structure 10112 is used to fix each coil of the spring antenna 1012. The spring antenna 1012 is used to emit radio frequency energy into the cavity 10111, thereby heating at least a portion of the aerosol-generated article located in the cavity 10111.
[0103] In the technical solution of this application embodiment, by providing a positioning structure 10112 on the circumferential sidewall of the tubular substrate 1011, the spring antenna 1012 is rotated and wound around one end of the positioning structure 10112 in the installation path. The positioning structure 10112 can limit the position of each coil of the spring antenna 1012, so that the position between the spring antenna 1012 and the tubular substrate 1011 is relatively fixed, reducing the change of the turn spacing (i.e., the spacing between adjacent coils) of the spring antenna 1012 during the operation of the heating assembly 10, which can improve the frequency offset problem, reduce the increase in heating time caused by frequency offset, and improve the energy utilization rate of the heating assembly 10.
[0104] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A heating assembly for heating an aerosol-generating article to produce an aerosol, characterized in that, The heating component includes: A tubular substrate defines a cavity for accommodating the aerosol-generated article, and a positioning structure is provided on the circumferential sidewall of the tubular substrate, the positioning structure defining an installation path; A spring antenna, which is rotatable around one end of the positioning structure in the mounting path, and the positioning structure is used to fix each coil of the spring antenna, the spring antenna being used to emit radio frequency energy into the cavity, thereby heating at least a portion of the aerosol-generating article located in the cavity.
2. The heating assembly of claim 1, wherein, The positioning structure includes a plurality of positioning units protruding from the circumferential sidewall of the tubular substrate, each of the positioning units being arranged along the axial direction of the tubular substrate. The positioning unit includes multiple evenly distributed protrusions, and a limiting groove is formed between two adjacent protrusions.
3. The heating assembly as described in claim 2, characterized in that, The width of the limiting groove and the length or diameter of the spring antenna satisfy the following relationship: D2≤D1≤(1+5%)D2 Wherein, D1 is the width of the limiting groove, and D2 is the length or diameter of the spring antenna.
4. The heating assembly of claim 2, wherein, The positioning structure includes four positioning units protruding from the circumferential sidewall of the tubular substrate.
5. The heating assembly of claim 2, wherein, The number of protrusions in each positioning unit is m, and the number of turns of the spring antenna is n, where m = n + 1.
6. The heating assembly of claim 1, wherein, The positioning structure includes a spiral groove recessed inward along the circumferential sidewall of the tubular substrate, and the width of the spiral groove and the length or diameter of the spring antenna satisfy the following relationship: D2≤D3≤(1+5%)D2 Wherein, D3 is the width of the spiral groove, and D2 is the length or diameter of the spring antenna.
7. The heating assembly of claim 1, wherein, The heating assembly also includes a shielding cover, which is fitted around the tubular substrate and the spring antenna.
8. The heating assembly of claim 7, wherein, The distance between the spring antenna and the inner wall of the shield is a, where a ≥ 4 mm.
9. The heating assembly as claimed in claim 7, characterized in that, The heating assembly also includes a heat insulation cover, which is fitted around the tubular substrate and the spring antenna and located inside the shielding cover.
10. The heating assembly of any one of claims 1-9, wherein, The spring antenna includes a coiled section and a connecting section. The coiled section is wound around the circumferential sidewall of the tubular substrate. One end of the connecting section is connected to the coiled section, and the other end is used to receive radio frequency signals.
11. The heating assembly of claim 10, wherein, The heating assembly also includes: A shielding element is fitted around the outer periphery of the connecting section and spaced apart from the connecting section; the shielding element is a tubular structure with openings at both ends; A fastener is fitted around the outer periphery of the connecting segment and inserted into the opening of the shielding member to fix the connecting segment relative to the shielding member.
12. An aerosol-generating device comprising: It includes a battery assembly and a heating assembly as described in any one of claims 1-11, wherein the battery assembly is used to provide electrical energy to the heating assembly.