Heating assembly and aerosol-generating device
By designing an irregular radial cross-section connected by a circular arc on the side surface of the heating component substrate, the problem of inaccurate positioning of the heating circuit of the irregular heating tube is solved, and the uniformity and accuracy of the heating circuit are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GEEKVAPE TECH CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-08
AI Technical Summary
Irregularly shaped heating tubes cannot be positioned during the printing of heating circuits, resulting in uneven thickness and positional deviations.
Design a heating component in which the radial cross-section of the side surface of the substrate is formed by connecting at least two circular arcs with different radii between adjacent arcs, and the printed path of the heating circuit is located through the center of the arcs to ensure constant curvature and avoid displacement.
It achieves uniform thickness and precise positioning of the heating circuit, simplifies path planning for printing equipment, and reduces errors.
Smart Images
Figure CN224206192U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aerosol generation technology, specifically to a heating component and an aerosol generation device. Background Technology
[0002] An aerosol generating device is a device capable of heating an aerosol matrix to generate aerosols. The aerosol generating device heats the aerosol matrix using heating elements, typically in two ways: central heating and circumferential heating. In the circumferential heating type, heating tubes are positioned around the perimeter of the aerosol matrix to heat it circumferentially.
[0003] Most heating tubes are cylindrical, but some heating tubes are irregularly shaped (meaning shapes other than cylindrical), such as heating tubes with an elliptical radial cross-section. Since an ellipse has no center, it is impossible to locate the reference point when printing the heating circuit on the heating tube. If printed directly, the heating circuit trajectory may be offset due to unclear positioning, resulting in uneven thickness or positional deviation of the heating circuit. Utility Model Content
[0004] This application provides a heating component and an aerosol generating device, which can solve the problem of uneven thickness caused by the inability to position the printed heating circuit of irregularly shaped heating tubes.
[0005] To address the aforementioned technical problems, this application provides a heating assembly comprising a substrate and heating circuitry. The substrate has a receiving cavity, with an axial end of the cavity having a socket for inserting an aerosol matrix into the cavity. Heating circuitry is disposed on the side surface of the substrate for heating the aerosol matrix. The radial cross-section of the side surface of the substrate with heating circuitry includes at least two arcs, with the endpoints of adjacent arcs connected sequentially, and the radii of adjacent arcs being different.
[0006] In one embodiment, the connection points of two adjacent circular arcs are tangent.
[0007] In one embodiment, the endpoints of the arcs are connected sequentially to form a closed shape.
[0008] In one embodiment, there are four arcs, namely a first arc, a second arc, a third arc, and a fourth arc connected end to end. The first arc and the third arc have the same radius, and the second arc and the fourth arc have the same radius. The line connecting the center of the first arc and the center of the third arc is L1, and the line connecting the center of the second arc and the center of the fourth arc is L2. L1 and L2 are perpendicular to each other.
[0009] In one embodiment, the distance between the center of the first arc and the center of the third arc is 3.0mm-3.8mm, and the distance between the center of the second arc and the center of the fourth arc is 2.7mm-3.5mm.
[0010] In one embodiment, the side surface of the substrate with heating circuitry has a consistent radial cross-sectional shape at all points in the axial direction.
[0011] In one embodiment, the heating circuit is located on the outer side surface of the substrate.
[0012] In one embodiment, the heating circuit includes a heating element and an electrode, the heating element being connected to the electrode, the heating element being used to generate heat when energized, and the electrode being used to connect to a wire.
[0013] In one embodiment, the heating element is disposed on a heating element printed on the side surface of the substrate.
[0014] In one embodiment, the heating element is configured as a heating mesh, heating sheet, heating film, or heating wire.
[0015] To address the aforementioned technical problems, this application provides an aerosol generating apparatus, which includes a heating component as described in any of the above embodiments.
[0016] This application provides a heating assembly, which includes a substrate and heating circuitry. The substrate has a receiving cavity, and one axial end of the receiving cavity has a socket for inserting an aerosol matrix into the receiving cavity. The heating circuitry is disposed on the side surface of the substrate for heating the aerosol matrix. The radial cross-section of the side surface of the substrate with the heating circuitry includes at least two arcs, with the endpoints of two adjacent arcs connected sequentially, and the radii of the adjacent arcs being different. Because the radial cross-section of the side surface of the substrate used for setting the heating circuitry in this application includes two arcs with their endpoints connected sequentially, and the radii of the adjacent arcs being different, an irregularly shaped substrate is formed. Since the curves of the radial cross-section of the irregularly shaped substrate in this application are all formed by connecting arcs with a center, and the curvature of each arc is constant, the printing path of the heating circuitry can be accurately positioned by the center of each arc during printing. This facilitates precise control of the printing trajectory by the equipment according to fixed parameters, resulting in more uniform thickness of the printed heating circuitry and more accurate positioning of the printed heating circuitry. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a heating assembly provided in one embodiment of this application;
[0018] Figure 2 This is a schematic diagram of the structure of a substrate provided in an embodiment of this application;
[0019] Figure 3A schematic diagram of a radial cross-section of a side surface on a substrate for mounting heating circuits, provided in an embodiment of this application;
[0020] Figure 4 Another schematic diagram of a radial cross-section of a side surface on a substrate for mounting heating circuits, provided in an embodiment of this application.
[0021] Reference numerals: heating component 10, base 11, receiving cavity 111, socket 1111, heating circuit 12, heating element 121, electrode 122, first arc AB, second arc BC, third arc CD, fourth arc DA. Detailed Implementation
[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0023] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0024] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0025] The terms "parallel" and "perpendicular," etc., are specific to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between A and B ranging from 0° to 10°. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between A and B ranging from 80° to 100°. The directional terms used in the embodiments of this application, such as "upper," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0026] This application provides a heating component 10, please refer to... Figure 1 and Figure 2 The heating component 10 includes a base 11 and a heating circuit 12.
[0027] The substrate 11 can be made of a material with high thermal conductivity, high temperature resistance, and certain insulation and chemical stability, such as ceramic (e.g., alumina, aluminum nitride) sintering. The substrate 11 has a receiving cavity 111, and one axial end of the receiving cavity 111 has a socket 1111 for inserting the aerosol matrix into the receiving cavity 111.
[0028] The aerosol matrix is generally solid and typically includes a matrix section, a cooling section, and a suction section. The matrix section may contain a grass-like matrix, such as tobacco. Heating the matrix section generates aerosols. One end of the cooling section connects to the matrix section, and the other end connects to the suction section. The cooling section contains cooling channels and cooling holes. The cooling holes connect to outside air and the cooling channels, allowing the hotter aerosols generated in the matrix section to mix with the cooler air entering the cooling channels through the cooling holes, thus lowering the aerosol's temperature. Users can then suction the aerosols through the suction section. Filter material may be incorporated into the suction section to filter the aerosols. Furthermore, the aerosol matrix may also include an outer layer of packaging paper or similar structures. The structure of the aerosol matrix is not limited to the structures mentioned above and may also include other structures known to those skilled in the art.
[0029] After the aerosol matrix is inserted into the receiving cavity 111, the substrate 11 surrounds the outer periphery of the matrix segment of the aerosol matrix to circumferentially heat the matrix segment. The end of the receiving cavity 111 away from the insertion port 1111 is connected to the outside atmosphere, so that after the aerosol matrix is inserted into the receiving cavity 111, the outside atmosphere can flow to the end of the receiving cavity 111 away from the insertion port 1111 and enter the aerosol matrix of the receiving cavity 111, so that the user can draw in the aerosol.
[0030] Heating circuit 12 is disposed on the side surface of substrate 11 to heat the aerosol matrix, thereby generating aerosol. The sidewall of substrate 11 is annular, forming a receiving cavity 111. The side surface of substrate 11 can refer to the outer side of the sidewall (the side facing away from the receiving cavity 111) or the inner side of the sidewall (the side facing the receiving cavity 111). Heating circuit 12 can be disposed on the outer side surface (i.e., the outer side surface) or the inner side surface (i.e., the inner side surface) of substrate 11. Heating circuit 12 is typically made of metals or alloys with good electrical conductivity, such as silver, nickel-chromium alloy, or copper.
[0031] In one embodiment, such as Figure 1 As shown, the heating circuit 12 includes a heating element 121 and an electrode 122. The heating element 121 is connected to the electrode 122. The heating element 121 is used to generate heat when energized, and the electrode 122 is used to connect to a wire. The wire can be electrically connected to a power supply and a circuit board to energize the heating element 121.
[0032] In one embodiment, the heating element 121 is configured as a heating mesh, heating sheet, heating film, or heating wire, for example in... Figure 1 In some embodiments, the heating element 121 is in the form of a heating film. The heating element 121 may be disposed on a heating element 121 printed or deposited on the side surface of the substrate 11.
[0033] Please refer to Figure 3 and Figure 4 , Figure 3 and Figure 4 The solid line represents the radial cross-section of the side surface of the substrate 11 on which the heating line 12 is disposed. The radial cross-section of the side surface of the substrate 11 on which the heating line 12 is disposed includes at least two arcs. For example, when the heating line 12 is disposed on the outer side surface of the substrate 11, the radial cross-section of the outer surface of the substrate 11 includes at least two arcs. This radial cross-section may include only at least two arcs; or it may include at least two arcs and a straight line. For example, it may be that at least two arcs are connected sequentially, and the straight line is connected to the two ends of the resulting shape. In this case, at least two arcs are connected.
[0034] The endpoints of two adjacent circular arcs are connected sequentially, and the radii of the two adjacent circular arcs are different. This application distinguishes the base 11 from a cylindrical base 11 with a circular radial cross-section, designing it as an irregularly shaped base 11. An irregularly shaped base 11 specifically refers to a base 11 with a shape other than a circular radial cross-section. The two ends of the circular arc are its endpoints, i.e., the start and end points of the arc. When the radial cross-section includes at least two circular arcs, the endpoints of each arc are connected sequentially to form a closed shape. When the radial cross-section includes at least two circular arcs and a straight line, two adjacent circular arcs refer to two circular arcs whose endpoints are connected sequentially without a straight line between them.
[0035] Because the radial cross-section of the side surface of the substrate 11 used to set the heating lines 12 in this application includes two arcs connected sequentially at their endpoints, with different radii for adjacent arcs, the substrate 11 is irregularly shaped. Existing irregularly shaped substrates, such as those with an elliptical radial cross-section, lack a center and their curvature is continuously changing. Printing equipment struggles to find a unified positioning reference point. Direct printing may result in misalignment of the line trajectory due to unclear positioning, leading to uneven thickness or positional deviations. Printing equipment needs to frequently adjust the curvature to adjust the movement path and speed, easily introducing errors. In contrast, the radial cross-section of the irregularly shaped substrate 11 in this application is formed by connecting arcs with centers. The curvature of each arc is constant. When printing the heating lines 12, the printing path of the heating lines 12 can be precisely positioned using the centers of each arc. This allows the equipment to accurately control the printing trajectory according to fixed parameters, simplifying path planning and significantly reducing errors. This results in a more uniform thickness and more precise positioning of the printed heating lines 12.
[0036] In one embodiment, such as Figure 4 As shown, in order to make the side surface of the substrate 11 smoother, the connection point of two adjacent arcs is tangent, that is, the two adjacent arcs have a common endpoint, and the connection point of the two arcs is smooth and without sharp corners, so that the heating line 12 does not bend at the connection point of two adjacent arcs, and prevents the heating line 12 from having heat concentration at the connection point of two adjacent arcs, so as to make the heat distribution of the heating line 12 more uniform.
[0037] In one embodiment, for example in Figure 4In this embodiment, there are four arcs: a first arc AB, a second arc BC, a third arc CD, and a fourth arc DA, which are connected end-to-end. Specifically, the first arc AB is centered at point O1, the second arc BC is centered at point O4, the third arc CD is centered at point O3, and the fourth arc DA is centered at point O2. The first arc AB is connected to the second arc BC at point B, and they are tangent at point B. The second arc BC is connected to the third arc CD at point C, and they are tangent at point C. The third arc CD is connected to the fourth arc DA at point D, and they are tangent at point D. The fourth arc DA is connected to the first arc AB at point A, and they are tangent at point A. The first arc AB and the third arc CD have the same radius. The second arc BC and the fourth arc DA have the same radius. The line connecting the center O1 of the first arc AB and the center O3 of the third arc CD is L1. The line connecting the center O4 of the second arc BC and the center O2 of the fourth arc DA is L2. L1 and L2 are perpendicular. It should be noted that... Figure 4 Although the shape resembles an ellipse, it is not an ellipse. The curvature of an ellipse changes continuously, while... Figure 4 The shape is composed of four circular arcs with constant curvature. This design allows the shape to approximate an ellipse, thus achieving a balance between having… Figure 4 When printing heating lines 12 on the substrate 11 with a radial cross-section, the printing path of the heating lines 12 can be accurately positioned by the center of the four arcs, which makes it easy for the equipment to accurately control the printing trajectory according to fixed parameters, making the thickness of the printed heating lines 12 more uniform, and solving the problem that printing equipment with a substrate 11 having an elliptical radial cross-section has difficulty finding a unified positioning reference point.
[0038] In one embodiment, the distance L1 between the center O1 of the first arc AB and the center O3 of the third arc CD is 3.0mm-3.8mm, and the distance L2 between the center O4 of the second arc BC and the center O2 of the fourth arc DA is 2.7mm-3.5mm. By limiting the distances L1 and L2, the size of the substrate 11 can be controlled to prevent the substrate 11 from being too large or too small.
[0039] In one embodiment, the shape of the radial cross-section of the side surface of the substrate 11 with heating line 12 is consistent at all points in the axial direction. That is, the radial cross-section taken at any axial position of the side wall of the substrate 11 is the same, so that the curvature of the substrate 11 only changes in the radial direction, which can further simplify the path planning of the printing equipment.
[0040] This application also provides an aerosol generating apparatus, which includes the heating component 10 of any of the above embodiments. Furthermore, the aerosol generating apparatus also includes a housing, a support, a power supply, a controller, and other components. The heating component 10, the support, the power supply, and the controller are installed within the housing. The support is used to mount and fix the heating component 10, the power supply is used to supply power to the heating component 10, and the controller is used to control the heating of the heating component 10. This aerosol generating apparatus can achieve the same function as the heating component 10 described above, and will not be described again here.
[0041] The above examples illustrate this application only to aid in understanding the invention and are not intended to limit the scope of the application. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the concept of this application.
Claims
1. A heating assembly, characterized in that, include: The matrix has a receiving cavity, and one axial end of the receiving cavity has a socket for inserting an aerosol matrix into the receiving cavity. The heating circuit is disposed on the side surface of the substrate and is used to heat the aerosol matrix; The radial cross-section of the side surface of the substrate with the heating circuit includes at least two circular arcs, the endpoints of two adjacent circular arcs are connected in sequence, and the radii of the two adjacent circular arcs are different.
2. The heating assembly according to claim 1, characterized in that, The connection points of two adjacent circular arcs are tangent.
3. The heating assembly according to claim 2, characterized in that, The endpoints of each arc are connected in sequence to form a closed shape.
4. The heating assembly according to claim 3, characterized in that, There are four arcs, namely the first arc, the second arc, the third arc, and the fourth arc connected end to end. The first arc and the third arc have the same radius, and the second arc and the fourth arc have the same radius. The line connecting the center of the first arc and the center of the third arc is L1, and the line connecting the center of the second arc and the center of the fourth arc is L2. L1 and L2 are perpendicular to each other.
5. The heating assembly according to claim 4, characterized in that, The distance between the center of the first arc and the center of the third arc is 3.0mm-3.8mm, and the distance between the center of the second arc and the center of the fourth arc is 2.7mm-3.5mm.
6. The heating assembly according to any one of claims 1-5, characterized in that, The side surface of the substrate with the heating circuit has a consistent radial cross-sectional shape at all points in the axial direction.
7. The heating assembly according to any one of claims 1-5, characterized in that, The heating circuit is located on the outer side surface of the substrate.
8. The heating assembly according to any one of claims 1-5, characterized in that, The heating circuit includes a heating element and an electrode. The heating element is connected to the electrode. The heating element is used to generate heat when energized, and the electrode is used to connect to a wire.
9. The heating assembly according to claim 8, characterized in that, The heating element is disposed on a heating element printed on the side surface of the substrate.
10. An aerosol generating device, characterized in that, Includes the heating assembly as described in any one of claims 1-9.