Heating element and aerosol generating device
By coating a heating coating of nanomaterials on the heat-conducting substrate and setting up isolation grooves, the problem of small heating area is solved, achieving more efficient and uniform heating effects and longer service life.
Patent Information
- Application Number
- CN202422574370.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-23
Smart Images
Figure CN223463658U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of aerosol generating equipment, in particular to a heating element and an aerosol generating device. BACKGROUND
[0002] The heat-not-burn device mostly uses heat conduction to heat the aerosol substrate to generate aerosol. Generally, a heat-conductive base capable of accommodating the aerosol substrate is arranged in the heat-not-burn device, and an electric heating material such as an electric heating wire or a resistance sheet is arranged outside the heat-conductive base. The electric heating material generates heat to heat the heat-conductive base, and then the heat-conductive base heats the aerosol substrate.
[0003] Currently, the heating area generated by the electric heating wire or the resistance sheet arranged is small, and the heating efficiency is low. CONTENT OF THE UTILITY MODEL
[0004] The technical problem solved by the present application is to improve the heating efficiency of the heating element.
[0005] According to a first aspect, a heating element is provided in an embodiment.
[0006] The heating element comprises:
[0007] A heat-conductive base having a heating cavity and a mounting port, the heating cavity being used to accommodate the aerosol substrate, and the mounting port being used for the aerosol substrate to be inserted into the heating cavity; the heat-conductive base has an insulated outer peripheral wall.
[0008] A heating plating layer plated on the outer peripheral wall of the heat-conductive base, the heating plating layer being used to generate heat by electricity to transfer heat to the heat-conductive base.
[0009] In an embodiment, the heating plating layer comprises a first heating section and a second heating section, and the first heating section and the second heating section are arranged at intervals along the axial direction of the heat-conductive base.
[0010] In an embodiment, along the axial direction of the heat-conductive base, the length of the first heating section is greater than the length of the second heating section.
[0011] In an embodiment, at least one isolation groove is arranged on the heat-conductive base, and the isolation groove is arranged between the first heating section and the second heating section along the circumferential direction of the heat-conductive base.
[0012] In an embodiment, the isolation groove is a through groove penetrating the heat-conductive base along the thickness direction of the peripheral wall of the heat-conductive base.
[0013] In one embodiment, the first heating section is connected with a first electrode, the second heating section is connected with a second electrode, and the first heating section and the second heating section are jointly connected with a third electrode, the first electrode and the second electrode are used to be electrically connected with the same electrode of a power supply, and the third electrode is used to be electrically connected with another electrode of the power supply.
[0014] In one embodiment, the heating plating layer is in a cylindrical shape.
[0015] In one embodiment, the heating plating layer is made of a nano material.
[0016] In one embodiment, the heating plating layer is a high-temperature electroplating layer, an immersion plating layer, or a spray plating layer.
[0017] In one embodiment, the heating body further comprises a high-temperature corrosion-resistant layer, which covers the outer surface of the heating plating layer.
[0018] In one embodiment, the heat-conducting base comprises:
[0019] a metal base;
[0020] and an insulating layer covering the outer surface of the metal base.
[0021] According to the second aspect, in one embodiment, an aerosol-generating device is provided.
[0022] The aerosol-generating device comprises a power supply assembly and the heating body according to any one of the above embodiments, and the power supply assembly is used to supply power to the heating body.
[0023] The heating body according to the above embodiments has a heat-conducting base for accommodating an aerosol substrate, and a heating plating layer is plated on the heat-conducting base. The plated heating plating layer can sufficiently cover the surface of the heat-conducting base, which helps to increase the heating area and thus improve the heating efficiency. Moreover, the plated heating plating layer has strong uniformity in thickness and balanced resistance at different positions, which helps to improve the heating uniformity. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 FIG. 1 is a structural schematic diagram of a first perspective view of a heating body according to one embodiment;
[0025] Figure 2 FIG. 2 is a structural schematic diagram of a second perspective view of the heating body according to one embodiment;
[0026] Figure 3 FIG. 3 is a structural schematic diagram of the heating body according to one embodiment;
[0027] Figure 4 FIG. 4 is a sectional view of an aerosol-generating device according to one embodiment.
[0028] In the figure, 100, heat-conducting base; 110, heating cavity; 120, mounting port; 130, metal base; 131, isolation groove; 140, insulation layer;
[0029] 200, heating plating layer; 210, first heating section; 211, first electrode; 220, second heating section; 221, second electrode; 230, third electrode; 240, lead wire;
[0030] 300, anti-corrosion layer;
[0031] 400, outer shell;
[0032] 500, power supply assembly. DETAILED DESCRIPTION
[0033] The application will be described in further detail below with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following embodiments, many details are described in order to provide a better understanding of the application. However, those skilled in the art will readily recognize that some features in different embodiments can be omitted, or replaced by other elements, materials, methods, etc. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core of the application being overwhelmed by too many details, and those skilled in the art will readily recognize that detailed description of the related operations is not necessary based on the description in the specification and general knowledge in the art.
[0034] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. Meanwhile, the steps or actions in the method description can also be sequentially adjusted or modified in a manner that is apparent to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.
[0035] The serial numbers of components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in this application, unless otherwise specified, include direct and indirect connections (couplings).
[0036] The heating body is provided with an electric heating wire, a resistance sheet or other electric heating material outside the heat-conducting base 100 to heat the heat-conducting base 100, and there are technical problems of a small heating area and low heating efficiency. Even if a heating layer is printed on the surface of the heat-conducting base 100 as the electric heating material by a thick film printing method, the printed heating layer is usually linear, and there is still a problem of a small heating area. Moreover, the printing paste is limited in uniformity, the printed heating layer has low printing precision, and the resistance uniformity of different areas is poor, which leads to insufficient heating efficiency.
[0037] In the embodiment of the present application, the heat-conducting base 100 is plated with the heating plating layer 200. Compared with the printing heating layer, the processing technology is simple, the heating plating layer 200 can fully cover the surface of the heat-conducting base 100, which helps to increase the heating area and improve the heating efficiency. Moreover, the plating material has high uniformity compared with the printing paste, the thickness of the heating plating layer 200 is uniform, the resistance of different positions of the heating plating layer 200 is balanced, and the heating uniformity is improved.
[0038] Embodiments of the heating body in the present application:
[0039] Please refer to Figures 1-3 In one embodiment, the heating body includes the heat-conducting base 100 and the heating plating layer 200.
[0040] Those skilled in the art can understand that the heat-conducting base 100 is used to accommodate the aerosol substrate and transfer the heat generated by the heating plating layer 200 to heat the aerosol substrate. Therefore, the heat-conducting base 100 should have a heat-conducting function, and since the heating plating layer 200 is an electric heating material, the heat-conducting base 100 should also have an insulating function to prevent the current in the heating plating layer 200 from being transmitted to the aerosol substrate through the heat-conducting base 100, which affects the safety of use.
[0041] In one embodiment, please refer to Figure 1 The heat-conducting base 100 has the heating cavity 110 and the mounting port 120. The heating cavity 110 is used to accommodate the aerosol substrate, and the mounting port 120 is used for the aerosol substrate to be inserted into the heating cavity 110. The heat-conducting base 100 has an insulating outer peripheral wall.
[0042] For example, the heat-conducting base 100 can have a tubular structure with both ends open. The opening at one end of the heat-conducting base 100 can be used as the mounting port 120, and the cavity of the heat-conducting base 100 can be used as the heating cavity 110. Those skilled in the art can understand that the heating cavity 110 can be arranged to allow the aerosol substrate to be completely inserted, or can be arranged to allow only the part of the aerosol substrate to be inserted to generate aerosol. The shape of the heating cavity 110 can also be cylindrical, prismatic or other shapes suitable for the aerosol substrate.
[0043] In some embodiments, the heat-conducting base 100 can be made of a material that has both insulation and heat-conducting functions, such as a ceramic material. In other embodiments, the heat-conducting base 100 can also be a heat-conducting material with an insulating layer 140 covering the outer surface. The heat-conducting material can be a metal material such as stainless steel, copper, or other materials with heat-conducting functions.
[0044] For example, referring to Figure 1 The heat-conducting base 100 includes a metal base 130 and an insulating layer 140. It should be understood by those skilled in the art that the metal base 130 refers to a base made of metal, for example, the metal base 130 can be a stainless steel pipe with excellent heat-conducting performance. The insulating layer 140 covers the outer surface of the metal base 130. In different embodiments, the insulating layer 140 can be arranged to completely cover the outer surface of the metal base 130, or can be arranged to cover only the part of the outer surface of the metal base 130 where the heating plating layer 200 is plated, so that the insulating layer 140 can isolate the heating plating layer 200 and the metal base 130. The insulating layer 140 can be coated or sprayed on the outer surface of the metal base 130, or can be covered on the outer surface of the metal base 130 by electroplating, vapor deposition or other means.
[0045] For example, referring to Figure 1 The heating plating layer 200 is plated on the outer peripheral wall of the heat-conducting base 100, and the heating plating layer 200 is used for heating by electricity to transfer heat to the heat-conducting base 100. It should be understood by those skilled in the art that the heating plating layer 200 is a plating layer with resistance characteristics. When an electric current passes through the heating plating layer 200, the heating plating layer 200 generates heat based on the Joule heating effect caused by resistance to generate heat and transfer to the heat-conducting base 100.
[0046] The plated heating plating layer 200 can fully cover the surface of the heat-conducting base 100, which helps to increase the heating area and improve the heating efficiency. In addition, the uniformity of the raw material of the plating layer is high, the thickness of the heating plating layer 200 formed is uniform, so that the resistance of the heating plating layer 200 at different positions is balanced, which helps to improve the heating uniformity.
[0047] The heating plating layer 200 can be made of a material with good electrical conductivity and thermal conductivity. In some embodiments, the material of the heating plating layer 200 can be a nano material, such as a nano carbon material. The heating plating layer 200 with nano material heats based on nano-level molecular heating technology, which has high heating efficiency and low heating power loss. It is not only more energy-saving, but also has a longer service life.
[0048] In some embodiments, the thickness of the heating plating layer 200 can be set to 3-100 μm. Exemplarily, the thickness of the heating plating layer 200 using nanomaterials can be thinned to about 5 μm to save material cost. Those skilled in the art should know that the thickness of the heating plating layer 200 can also be set to 3 μm, 4 μm, 6 μm, 7 μm, 8 μm, 10 μm, 20 μm, 50 μm, 100 μm or other thickness specifications meeting the design and use requirements. The different regions of the heating plating layer 200 can also be set to different thickness specifications as needed to meet the diversified heating needs of the aerosol substrate.
[0049] In different embodiments, the heating plating layer 200 can be a high-temperature electroplating layer formed by high-temperature electroplating, a dip plating layer formed by dip plating, a spray plating layer formed by spray plating, or a plating layer formed by other processes.
[0050] Those skilled in the art can understand that the heating plating layer 200 can be set in an integral manner or in a segmented manner according to heating needs. For example, in some embodiments, the shape of the heating plating layer 200 can be an integral cylindrical shape to fully cover the surface of the heat-conducting substrate 100. In other embodiments, referring to Figure 1 , in order to more flexibly heat the aerosol substrate, the heating plating layer 200 can also include a first heating section 210 and a second heating section 220, which are spaced apart along the axial direction of the heat-conducting substrate 100 to heat different regions of the aerosol substrate according to heating needs. Those skilled in the art should know that in other embodiments, the heating plating layer 200 can also be set to three sections, four sections or other numbers of sections according to different heating needs.
[0051] In order to enable the first heating section 210 and the second heating section 220 to be heated respectively, in some embodiments, referring to Figure 1 and Figure 2 , the first heating section 210 is connected with a first electrode 211, the second heating section 220 is connected with a second electrode 221, and the first heating section 210 and the second heating section 220 are commonly connected with a third electrode 230, the first electrode 211 and the second electrode 221 are used to be electrically connected with the same electrode of a power supply, and the third electrode 230 is used to be electrically connected with another electrode of the power supply. Through the action of the first electrode 211, the second electrode 221 and the third electrode 230, the first heating section 210 and the second heating section 220 are connected in parallel, so that the first heating section 210 and the second heating section 220 can be heated respectively or simultaneously, which helps to improve the heating flexibility.
[0052] Exemplarily, the first electrode 211, the second electrode 221 and the third electrode 230 can all be silver electrodes, the first electrode 211 can be arranged on one side of the first heating section 210 along the axial direction of the first heating section 210, the second electrode 221 can be arranged on one side of the second heating section 220 along the axial direction of the second heating section 220, the third electrode 230 can be arranged on one side of the first heating section 210 and on the other side of the second heating section 220, and the first electrode 211 and the second electrode 221 can be oppositely arranged, and the third electrode 230 can be arranged on the side away from the first electrode 211 and the second electrode 221. By welding the electrode lead 240 on the silver electrode, the first electrode 211, the second electrode 221 and the third electrode 230 can be connected to the power supply or the control circuit board to realize the heating control of the first heating section 210 and the second heating section 220.
[0053] Those skilled in the art should know that in other embodiments, the third electrode 230 can be connected on one of the first heating section 210 and the second heating section 220, and a fourth electrode can be connected on the other one, and the fourth electrode and the third electrode 230 can be connected to the same electrode of the power supply, so that the first heating section 210 and the second heating section 220 can each form a loop in communication with the power supply. In other embodiments, the electrodes for supplying power to the heating plating layer 200 can be pre-set on the heating plating layer 200, or can be arranged in the aerosol generating device, and the electrodes can supply power to the heating plating layer 200 after the heating body is installed in the aerosol generating device.
[0054] Since the heat generated by the first heating section 210 and the second heating section 220 can be conducted to each other through the heat-conducting base 100, when the heating power of the first heating section 210 and the second heating section 220 is different, the heat loss of the heating body will increase. Therefore, in some embodiments, referring to Figure 1 and Figure 2 at least one isolation groove 131 is arranged on the heat-conducting base 100 between the first heating section 210 and the second heating section 220 along the circumferential direction of the heat-conducting base 100. The arrangement of the isolation groove 131 helps to increase the thermal resistance of the heat-conduction path between the first heating section 210 and the second heating section 220, weaken the heat conduction between the first heating section 210 and the second heating section 220, and help to reduce the heat loss of the heating body.
[0055] In one embodiment, the isolation groove 131 is a through groove penetrating the heat-conducting base 100 along the thickness direction of the circumferential wall of the heat-conducting base 100, so that the heat-conduction path of the first heating section 210 and the second heating section 220 needs to bypass the through groove, which helps to further increase the thermal resistance of the heat-conduction path between the first heating section 210 and the second heating section 220 and reduce the heat loss of the heating body.
[0056] Exemplarily, the isolation groove 131 includes two arc-shaped grooves arranged along the circumference of the heat-conductive base 100. In other embodiments, the isolation groove 131 can also be arranged along the circumference of the heat-conductive base 100 in three, four or more, and can be arranged in multiple layers along the axial direction of the heat-conductive base 100, and each layer of the isolation groove 131 can also be arranged staggered to further increase the thermal resistance of the first heating section 210 and the second heating section 220. Those skilled in the art should also know that the isolation groove 131 can be linear, wavy, zigzag or other shapes.
[0057] In addition, due to the variety of aerosol substrate types, the heating position of various aerosol substrates can be different, and therefore, in some embodiments, the length of the first heating section 210 is greater than the length of the second heating section 220 along the axial direction of the heat-conductive base 100, so as to heat different types of aerosol substrates.
[0058] It should also be particularly pointed out that, since the resistance of the heating plating layer 200 varies at different temperatures, the temperature of the heating plating layer 200 can be inferred according to the resistance of the heating plating layer 200, and therefore, the heating plating layer 200 also has a temperature measurement function and can be used as a temperature measurement layer.
[0059] In some embodiments, in order to prolong the service life of the heating body, please refer to Figure 3 , the heating body also includes a high-temperature corrosion-resistant layer 300 covering the outer surface of the heating plating layer 200 to protect the heating plating layer 200. The high-temperature corrosion-resistant layer can be coated or sprayed on the outer surface of the heating plating layer 200, or can be covered on the outer surface of the heating plating layer 200 by electroplating, vapor deposition or other means.
[0060] Embodiments of the aerosol-generating device in the present application:
[0061] Please refer to Figure 4 , the aerosol-generating device includes a housing 400, a power supply assembly 500 and a heating body; the power supply assembly 500 and the heating body are installed in the housing 400, the power supply assembly 500 is used to supply power to the heating body; the heating body is any one of the heating bodies in the above embodiments.
[0062] The power supply assembly 500 can be understood as a power supply or a collection of power supply and related components such as circuit boards, mainly used to support the realization of the heating function of the aerosol-generating device, such as starting and stopping the heating of the aerosol-generating substrate by the heating plating layer 200, adjusting the heating power of the first heating section 210 and the second heating section 220, etc. In other embodiments, the power supply assembly 500 can also be used to support the realization of other functions of the aerosol-generating device, such as displaying the state information of the aerosol-generating device, etc.
[0063] The above describes the present application by using specific examples, which is only used to help understand the present application and does not limit the present application. According to the idea of the present application, a person skilled in the art of the present application can make several simple deductions, deformations or substitutions.
Claims
1. A heat generating body, characterized by The application relates to a heating body for an aerosol generating device. The heating body comprises: a heat-conducting base body having a heating cavity for accommodating an aerosol substrate and a mounting opening for inserting the aerosol substrate into the heating cavity; the heat-conducting base body has an insulated peripheral wall; 2. The heat generating body according to claim 1, wherein a heating plating layer plated on the peripheral wall of the heat-conducting base body, the heating plating layer being used for heating by electricity to transfer heat to the heat-conducting base body.
3. The heat generating body according to claim 2, wherein The heating plating layer comprises a first heating section and a second heating section, and the first heating section and the second heating section are arranged along the axial direction of the heat-conducting base body.
4. The heat generating body according to claim 2, wherein The length of the first heating section is greater than the length of the second heating section along the axial direction of the heat-conducting base body.
5. The heat generating body according to claim 4, wherein The heat-conducting base body is provided with at least one isolation groove arranged between the first heating section and the second heating section along the circumferential direction of the heat-conducting base body.
6. The heat generating body according to claim 2, wherein The isolation groove is a through groove penetrating the heat-conducting base body along the thickness direction of the peripheral wall of the heat-conducting base body.
7. The heat generating body according to any one of claims 1 to 6, wherein The first heating section is connected with a first electrode, the second heating section is connected with a second electrode, and the first heating section and the second heating section are jointly connected with a third electrode, the first electrode and the second electrode being used for electrically connecting with the same electrode of a power supply, and the third electrode being used for electrically connecting with another electrode of the power supply.
8. The heat generating body according to any one of claims 1 to 6, wherein The shape of the heating plating layer is columnar.
9. The heat generating body according to any one of claims 1 to 6, wherein The material of the heating plating layer is nano material.
10. The heat generating body according to any one of claims 1 to 6, wherein The heating plating layer is a high-temperature electroplating layer, an immersion plating layer or a spray plating layer.
11. The heat generating body according to any one of claims 1 to 6, wherein The heating body further comprises a high-temperature corrosion-resistant layer covering the outer surface of the heating plating layer. The heat-conducting base body comprises: a metal base body; 12. Aerosol-generating device, characterized in that and an insulating layer covering the outer surface of the metal base body. The application further relates to a power supply assembly and the heating body. The power supply assembly is used for supplying power to the heating body.