Heating body and aerosol generating device
By adopting a curved busbar design and structural optimization on the outer surface of the heating element sleeve needle, the problems of difficult processing and coating defects were solved, achieving convenient manufacturing and uniform heating effect.
Patent Information
- Application Number
- CN202423271043.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The needles of existing heating elements are difficult to process, and the coating is prone to defects such as accumulation and unevenness, which affect the processing, manufacturing and use.
The outer surface of the cannula needle is a textured surface formed by a curved generatrix rotating around the center line of rotation. The generatrix is a conic curve or a sine curve to avoid sharp tips. The junction between the needle and the tube body is smooth and gradual. Combined with the cannula design, it can be either separable or integrated.
It facilitates processing and manufacturing, reduces the probability of coating defects, improves the reliability and uniformity of the heating element, and avoids problems such as uneven heating and excessively high temperature.
Smart Images
Figure CN223943803U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of atomization, in particular to a heating element and an aerosol generating device. BACKGROUND
[0002] An aerosol generating article generally generates aerosol by heating without combustion. Specifically, an aerosol generating substrate section is provided in the aerosol generating article, and the aerosol generating article is heated by a heating element in an aerosol generating device, so that the aerosol generating substrate section is heated to a temperature sufficient to release flavor, but the aerosol generating substrate section does not burn at the temperature range.
[0003] In the related art, a heating element is provided with a heating wire in a sleeve, and the heating element is inserted into the inside of the aerosol generating substrate section, and the heating wire in the sleeve is used to bake and heat the aerosol generating substrate section. In order to facilitate the insertion of the heating element into the inside of the aerosol generating substrate section, the end of the sleeve inserted into the inside of the aerosol generating substrate section is generally provided with a needle head in the form of a sharp corner. However, the fine tip is difficult to process, and the coating at the position of the needle head part is prone to accumulation, unevenness and other defects. CONTENT OF THE UTILITY MODEL
[0004] Therefore, an embodiment of the present application aims to provide a heating element and an aerosol generating device which are easy to manufacture and are not prone to coating defects.
[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides a heating element, comprising:
[0006] A sleeve, the sleeve comprising a tube body and a needle head provided at one end of the tube body, an outer surface of the needle head being a curved surface formed by rotating a generatrix in the form of a curved line about a rotation center line, wherein the generatrix is a conic curve or a sinusoidal curve;
[0007] A heating core, the heating core comprising a heating wire installed in the sleeve.
[0008] In one embodiment, the heating core further comprises a core rod, and the heating wire is wound on the outer periphery of the core rod along the axial direction of the core rod.
[0009] In one embodiment, an end point of one end of the generatrix coincides with the rotation center line.
[0010] In one embodiment, the conic curve is a parabola, an ellipse or a hyperbola.
[0011] In one embodiment, the heating wire realizes heating through electromagnetic induction.
[0012] In one embodiment, the heating element comprises two lead wires.
[0013] Two of the lead wires are connected to opposite ends of the heating wire; or,
[0014] One of the two lead wires is connected to one end of the heating wire, and the other of the two lead wires is arranged outside the sleeve and is electrically connected to the heating wire through the sleeve.
[0015] In one embodiment, the sleeve is a split structure of the tube body and the needle head.
[0016] Or, the sleeve is an integral structure of the tube body and the needle head.
[0017] In one embodiment, the needle head is connected to the core rod.
[0018] In one embodiment, the sleeve is an integral structure of the tube body and the needle head.
[0019] In one embodiment, the core rod includes a rod body part and a limiting part, the rod body part includes a first segment and a second segment, the second segment is located on one side of the first segment along the axial direction, the limiting part is arranged on the outer circumferential side of the first segment and is limitedly matched with the sleeve, and the heating wire is wound around the second segment.
[0020] In one embodiment, the outer surface of the sleeve is coated with a coating layer.
[0021] Another embodiment of the present application provides an aerosol generating device including the heating body.
[0022] The embodiments of the present application provide a heating body and an aerosol generating device, wherein the sleeve of the heating body includes a tube body and a needle head arranged at one end of the tube body, the outer surface of the needle head is a curved surface formed by rotating a generatrix in a curved shape around a rotation center line, and the generatrix adopts a conic curve or a sinusoidal curve. The outer surface of such a needle head has good smoothness, does not form a relatively sharp tip, and the junction of the needle head and the tube body can also be smoothly transitioned, so that not only is the processing and manufacturing convenient, but the coating is less likely to have defects such as accumulation and unevenness. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 FIG. 1 is a structural schematic diagram of a heating body according to an embodiment of the present application, and also shows a base of an aerosol generating device;
[0024] Figure 2 FIG. 2 is a structural schematic diagram of a sleeve shown in FIG. 1; Figure 1
[0025] Figure 3 FIG. 3 is an exploded view of the sleeve shown in FIG. 1; Figure 2
[0026] Figure 4 for Figure 3 The diagram shows the structure of the needle.
[0027] Figure 5 for Figure 1 A partial structural schematic diagram of the heating element is shown.
[0028] Figure 6 for Figure 1 A schematic diagram of the heating element from another perspective;
[0029] Figure 7 for Figure 6 AA section view;
[0030] Figure 8 for Figure 6 BB section view;
[0031] Figure 9 This is a cross-sectional view of another heating element according to an embodiment of this application;
[0032] Figure 10 This is a schematic diagram illustrating the cooperation relationship between an aerosol generating device and an aerosol generating product according to an embodiment of this application.
[0033] Figure 11 for Figure 10 Exploded view;
[0034] Figure 12 for Figure 10 A cross-sectional view of the aerosol generating apparatus shown.
[0035] Explanation of reference numerals in the attached figures
[0036] 1000, Aerosol generating device; 100, Heating element; 10, Sleeve; 10a, Installation channel; 11, Tube body; 12, Needle; 12a, Outer surface; 20, Heating core; 21, Core rod; 211, Rod body; 211a, Hollow channel; 2111, First section; 2112, Second section; 212, Limiting part; 212a, Lead wire groove; 22, Heating wire; 30, Lead wire; Z, Rotation center line; L, Busbar; 200, Main body; 200a, Insertion interface; 300, Base; 2000, Aerosol generating product. Detailed Implementation
[0037] In the description of the embodiments in this application, it should be noted that the orientation or positional relationship indicated by terms such as "axial direction" is based on the appendix. Figure 9The positional terms are merely used for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0038] The aerosol generating device 1000 according to an embodiment of the present application includes a heating body 100. Figures 10 to 12
[0039] The heating body 100 heats and atomizes the aerosol generating substrate segment inserted into the aerosol generating article 2000 to generate an aerosol for a user to inhale or for medical, cosmetic, etc.
[0040] The heating body 100 according to an embodiment of the present application includes a sleeve 10 and a heating core 20. Figures 1 to 8
[0041] The sleeve 10 includes a tube 11 and a needle 12, and the needle 12 is disposed at one end of the tube 11. Figures 2 to 4
[0042] That is, the generatrix L of the outer surface 12a of the needle 12 is not a straight line, nor a circular arc, but a conic curve or a sinusoidal curve that protrudes away from the rotation center line Z.
[0043] For example, the conic curve can be a parabola, an ellipse, or a hyperbola.
[0044] It should be noted that the above description is for the convenience of understanding and simplification, and the mathematical description used allows for a certain amount of error in actual industrial production.
[0045] The heating core 20 includes a heating wire 22 installed in the sleeve 10. Figure 5 Figure 7 Specifically, the sleeve 10 can be a split structure in which the tube 11 and the needle 12 are separable, that is, the tube 11 and the needle 12 are connected in a detachable manner such as a threaded connection, and the needle 12 can be removed from the tube 11 alone.
[0046] Specifically, the sleeve 10 can be a split structure in which the tube 11 and the needle 12 are separable, that is, the tube 11 and the needle 12 are connected in a detachable manner such as a threaded connection, and the needle 12 can be removed from the tube 11 alone. Figure 3
[0047] The sleeve 10 can also be a unitary structure in which the tube 11 and the needle 12 are connected, that is, the tube 11 and the needle 12 are inseparable. Figure 9
[0048] The outer surface of the sleeve 10 can be coated with a coating layer, which can be an enamel layer, an insulating paint layer, etc., to serve as an insulator.
[0049] For further reference Figure 7 , the sleeve 10 has a mounting channel 10a and an opening in communication with the mounting channel 10a, and the heating core 20 enters the mounting channel 10a from the opening, and the heating wire 22 is close to the needle 12 of the sleeve 10.
[0050] The heating wire 22 is the main component of the heating core 20, and generates heat after being electrified, so as to heat and atomize the aerosol generating substrate segment.
[0051] For further reference Figure 5 and Figure 7 , the heating core 20 can be provided with a core rod 21, and the heating wire 22 is wound around the outer periphery of the core rod 21 in the axial direction of the core rod 21. The heating core 20 can also not be provided with the core rod 21.
[0052] Exemplarily, for further reference Figure 7 and Figure 9 , the heating body 100 can be provided with two lead wires 30, and the two lead wires 30 are respectively in conductive connection with the heating wire 22. The two lead wires 30 are in conductive connection with the battery of the aerosol generating device 1000, so that the battery can supply power to the heating wire 22.
[0053] For further reference Figure 7 , the conductive connection between the two lead wires 30 and the heating wire 22 can be that one lead wire 30 is connected with one end of the heating wire 22, and the other of the two lead wires 30 is arranged outside the sleeve 10 and is in conductive connection with the heating wire 22 through the sleeve 10, that is, the lead wire 30 arranged outside the sleeve 10 and the heating wire 22 are respectively in conductive contact or conductive connection with the sleeve 10, so that the lead wire 30 arranged outside the sleeve 10 is in conductive connection with the heating wire 22.
[0054] For further reference Figure 9 , the conductive connection between the two lead wires 30 and the heating wire 22 can also be that the two lead wires 30 are respectively connected with opposite ends of the heating wire 22.
[0055] In other embodiments, the heating wire 22 can also be heated by other ways such as electromagnetic induction.
[0056] For further reference Figure 11 and Figure 12The aerosol-generating device 1000 includes a main body 200 having a plug interface 200a, a heating element 100 is arranged inside the main body 200, and the needle 12 faces the plug interface 200a. An aerosol-generating article 2000 having an aerosol-generating substrate section is inserted into the main body 200 from the plug interface 200a, and the aerosol-generating article 2000 is fixed by inserting the needle 12 into the inside of the aerosol-generating substrate section.
[0057] Referring to Figure 1 and Figure 12 To facilitate the installation of the heating element 100 in the main body 200, the aerosol-generating device 1000 can further be provided with a base 300 in the main body 200, and the heating element 100 can be installed on the base 300.
[0058] In the related art, the outer surface of the needle with a sharp corner is generally conical, and the conical shape has a relatively sharp tip. The tip is not only difficult to process, but the coating at the tip is also prone to defects such as accumulation and unevenness. In addition, since the junction between the conical needle and the tube also has a clear transition, the coating at the junction between the needle and the tube is also prone to defects such as accumulation and unevenness. Although the outer surface of some needles adopts a circular arc-shaped curved surface, i.e., the generatrix of the outer surface of the needle is a circular arc, the smoothness of the outer surface of such a needle is insufficient, and a relatively sharp tip is still likely to be formed.
[0059] In the embodiments of the present application, the outer surface 12a of the needle 12 is a curved surface formed by rotating a curved generatrix L around a rotation center line Z, and the generatrix L adopts a conic curve or a sinusoidal curve. Therefore, the outer surface 12a of the needle 12 has good smoothness, and not only will not form a relatively sharp tip, but also the junction between the needle 12 and the tube 11 can be smoothly transitioned. Thus, not only is the manufacturing process facilitated, but the coating is also less likely to have defects such as accumulation and unevenness.
[0060] In an embodiment, referring to Figure 4 , the end point L0 of one end of the generatrix L can coincide with the rotation center line Z. It can be understood that the end point L0 is actually the end point of the generatrix L away from the tube 11. In this way, the end of the needle 12 away from the tube 11 can form a curved surface protruding in a direction away from the tube 11, thereby not only better reducing the difficulty of manufacturing the needle 12, but also further reducing the probability of defects such as accumulation and unevenness of the coating.
[0061] In other embodiments, there can be a gap between the end point L0 of the generatrix L away from the tube 11 and the rotation center line Z, i.e., the end of the needle 12 away from the tube 11 is a flat surface.
[0062] In an embodiment, referring to Figure 5 ,Figure 7 And Figure 8 For the split structure of the sleeve 10, the needle 12 can be connected with the core rod 21, for example, the needle 12 can be inserted with the core rod 21.
[0063] The needle 12 can ensure that the core rod 21 can be substantially maintained in the middle position in the installation channel 10a by being connected with the core rod 21, so that the displacement of the heating wire 22 can be better prevented to cause the surface temperature of the heating body 100 at different angles to have a large difference, and then the aerosol generating substrate segment can be better avoided to be heated unevenly, insufficiently heated, and have a burnt smell caused by too high temperature.
[0064] In other embodiments, for the sleeve 10 of the integrated structure, the needle 12 can also be connected with the core rod 21.
[0065] In an embodiment, please refer to Figure 9 For the sleeve 10 of the integrated structure, the core rod 21 can be provided with a rod body part 211 and a limiting part 212, the rod body part 211 includes a first segment 2111 and a second segment 2112, the second segment 2112 is located on one side of the first segment 2111 along the axial direction, the limiting part 212 is arranged on the outer circumferential side of the first segment 2111 and is limitedly matched with the sleeve 10, and the heating wire 22 is wound on the second segment 2112.
[0066] That is, the limiting part 212 is located in the installation channel 10a and is limitedly matched with the installation channel 10a.
[0067] The limiting part 212 can only have a part located in the installation channel 10a, or can be entirely located in the installation channel 10a.
[0068] In order to better play the limiting role, more preferably, the limiting part 212 can be in contact with the inner side wall of the installation channel 10a, and in other embodiments, there can also be a certain gap between the limiting part 212 and the inner side wall of the installation channel 10a.
[0069] In addition, under the premise of being able to play the limiting role, the limiting part 212 can be arranged on the outer circumferential side of the first segment 2111 in various ways, for example, please refer to Figure 9 The limiting part 212 can be arranged around the outer circumferential side of the first segment 2111, that is, in the projection plane perpendicular to the axial direction of the core rod 21, the projection of the limiting part 212 is arranged on the outer side of the projection of the first segment 2111. Among them, the limiting part 212 can be arranged in a closed ring shape, or the limiting part 212 can be disconnected to form a ring shape with a gap between the leading end and the trailing end (i.e. a ring shape with a gap).
[0070] Exemplarily, the limiting portion 212 can also have multiple limiting blocks, and the number of the limiting blocks can be two or more. The multiple limiting blocks are arranged at intervals along the outer circumferential side of the first section 2111.
[0071] Figure 9 The two lead wires 30 are respectively connected to the opposite ends of the heating wire 22. The limiting portion 212 is provided with a lead wire slot 212a, and the inner portion of the rod body portion 211 is also provided with a hollow passage 211a that penetrates the rod body portion 211 along the opposite ends in the axial direction. One of the lead wires 30 is arranged in the lead wire slot 212a, and the other lead wire 30 extends out of the hollow passage 211a.
[0072] In other embodiments, whether the inner portion of the core rod 21 is provided with the hollow passage 211a or not, the two lead wires 30 can be arranged in the same lead wire slot 212a, or the limiting portion 212 can be provided with two lead wire slots 212a, and the two lead wires 30 are respectively arranged in the corresponding lead wire slots 212a.
[0073] In other embodiments, the limiting portion 212 can also not be provided with the lead wire slot 212a. For example, part of the outer side wall of the limiting portion 212 can be arranged at intervals with the inner side wall of the mounting passage 10a, so that the interval forms a passage for the lead wire 30 to pass through.
[0074] In other embodiments, for the core rod 21 with the limiting portion 212 having multiple limiting blocks, the spacing between the adjacent two limiting blocks can also be larger, and the lead wire 30 can be arranged between the adjacent two limiting blocks.
[0075] The limiting portion 212 can also ensure that the core rod 21 can be substantially kept at the central position in the mounting passage 10a through the limiting cooperation with the mounting passage 10a, so that the deviation of the heating wire 22 can be better prevented, and the large difference in the surface temperature of the heating body 100 at different angles can be better prevented, and the situation that the aerosol generating substrate section is unevenly heated, insufficiently heated, and has a burnt taste due to the excessively high temperature can be better avoided.
[0076] In addition, for the split structure of the sleeve 10, the sleeve 10 can also be used in cooperation with the core rod 21 having the rod body portion 211 and the limiting portion 212.
[0077] In the description of the application, the description of the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referring to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the application can be implemented in any suitable combination of hardware and / or software for any real or theoretical computer system dependent on the particular needs and requirements of the application being implemented. Moreover, the different embodiments or examples of the application can be combined with each other and / or combined with the features of the different embodiments or examples without departing from the scope of the application.
[0078] The above description is merely illustrative of the application, and is not intended to limit the application. Any modification and change can be made on the application without departing from the spirit and principle of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the scope of the application.
Claims
1. A heat generating body, characterized by comprising: The application relates to a heating body, which comprises a sleeve and a heating core. The sleeve comprises a tube body and a needle head arranged at one end of the tube body, and the outer surface of the needle head is a curved surface formed by rotating a curved generatrix around a rotation center line, wherein the curved generatrix is a conic curve or a sinusoidal curve. The heating core comprises a heating wire installed in the sleeve.
2. The heat generating body according to claim 1, characterized by The heating core further comprises a core rod, The heating wire is wound around the outer periphery of the core rod along the axial direction of the core rod.
3. The heat generating body according to claim 1 or 2, characterized by, The end point of one end of the curved generatrix coincides with the rotation center line.
4. The heat generating body according to claim 1 or 2, characterized by The conic curve is a parabola, an ellipse or a hyperbola.
5. The heat generating body according to claim 1 or 2, characterized by The heating wire generates heat through electromagnetic induction.
6. The heat generating body according to claim 1 or 2, characterized by The heating body comprises two lead wires. One of the two lead wires is connected with one end of the heating wire, and the other lead wire is arranged outside the sleeve and is electrically connected with the heating wire through the sleeve. The sleeve is in a detachable structure, or in an integrated structure.
7. The heat generating body according to claim 1 or 2, characterized by The needle head is connected with the core rod.
8. The heat generating body according to claim 2, wherein The core rod comprises a rod body part and a limiting part, the rod body part comprises a first section and a second section, the second section is arranged at one side of the first section along the axial direction, the limiting part is arranged at the outer periphery of the first section and is limitedly matched with the sleeve, and the heating wire is wound around the second section.
9. The heat generating body according to claim 2, wherein The outer surface of the sleeve is coated with a coating.
10. The heat generating body according to claim 1 or 2, characterized by The application further relates to a heating body.
11. An aerosol-generating device comprising: The application further relates to a heating body.