Heating element, heating structure and aerosol generating device

Abstract

The utility model discloses a heating element, a heating structure and an aerosol generating device. Belongs to the technical field of aerosol generation. According to the heating element, the first lead is arranged to be of the sectional structure with the first section and the second section, and the resistivity of the first section is set to be smaller than that of the second section, so that the second section can be stably connected between the first section and the heating body; and / or the second lead is arranged into a sectional structure with a third section and a fourth section, and the resistivity of the third section is smaller than that of the fourth section, so that the fourth section can be stably connected between the first section and the heating body, and the heating element comprising the sectional first lead and / or the second lead has a stable structure; when the heating element works, the electrical resistivity of the first section and / or the third section is low, so that the energy consumption of the first section and / or the third section is low, and the energy consumption of the first lead and / or the third lead can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to a heating element, a heating structure and an aerosol generating device. Background Art

[0002] An aerosol generating device is an apparatus that heats an aerosol matrix to produce an aerosol. The heating element used to heat the aerosol matrix is ​​a core component of the aerosol generating device. When powered, the heating element, which has a resistor, generates heat based on the thermal effect of the resistor and conducts it outward to heat the aerosol matrix.

[0003] The heating element usually includes a heating body and a lead, which is electrically connected to the heating body. The heating body is usually made of high-resistivity 1J50 alloy or pure titanium. In the existing technology, in order to ensure that the lead can achieve a stable electrical connection with the heating body, the lead is also made of high-resistivity material. Therefore, when power is turned on, the high-resistivity lead will also dissipate a large amount of heat based on the thermal effect of resistance, resulting in a high proportion of energy consumption of the lead. However, if a wire made of low-resistivity material is used, the electrical connection may be unstable and the wire may easily fall off. Utility Model Content

[0004] The main purpose of this application is to provide a heating element, a heating structure and an aerosol generating device to solve the problem in the prior art that the lead wires of the heating element have a high energy consumption ratio and are easy to loosen.

[0005] According to one aspect of the present application, the present application provides a heating element, comprising:

[0006] a heating element configured to emit heat when powered;

[0007] a first lead and a second lead, wherein the first lead and the second lead are electrically connected to the heating element respectively;

[0008] The first lead includes a first section and a second section, the second section is electrically connected between the first section and the heating element, and the resistivity of the second section is greater than the resistivity of the first section;

[0009] And / or, the second lead includes a third section and a fourth section, the fourth section is electrically connected between the third section and the heating element, and the resistivity of the fourth section is greater than the resistivity of the third section.

[0010] Furthermore, the length of the first segment is greater than the length of the second segment; and / or the length of the third segment is greater than the length of the fourth segment.

[0011] Furthermore, the diameter of the first section is smaller than the diameter of the second section; and / or the diameter of the third section is smaller than the diameter of the fourth section.

[0012] Furthermore, the heating element is made of one of 1J50 iron-nickel alloy, pure titanium, palladium, and iron-chromium-aluminum materials;

[0013] The first section and the third section are respectively made of one of silver, copper, and copper plated with silver;

[0014] The second section and the fourth section are respectively made of one of nickel and nickel alloy materials.

[0015] Furthermore, the heating element includes a heating portion, a first electrode, and a second electrode. The first electrode is electrically connected between the second segment and the heating portion, and the second electrode is electrically connected between the fourth segment and the heating portion.

[0016] Furthermore, the first electrode, the second electrode and the heating portion are an integrated structure.

[0017] Furthermore, the heating element is a mesh structure, and the first electrode and the second electrode are respectively sheet structures.

[0018] Furthermore, surfaces of the first lead and the second lead are respectively provided with an insulating layer.

[0019] On the other hand, the present application further provides a heating structure, which comprises any of the above-mentioned heating elements; and

[0020] A bracket is used to install the heating element.

[0021] In another aspect, the present application further provides an aerosol generating device, wherein the aerosol generating device comprises the above-mentioned heating structure; and

[0022] A power supply module is electrically connected to the heating element and is used to supply power to the heating element.

[0023] In the heating element of the present application, the first lead is set to a segmented structure having the first segment and the second segment, and the resistivity of the first segment is set to be smaller than the resistivity of the second segment, so that the second segment can be stably connected between the first segment and the heating element, and / or the second lead is set to a segmented structure having the third segment and the fourth segment, and the resistivity of the third segment is set to be smaller than the resistivity of the fourth segment, so that the fourth segment can be stably connected between the first segment and the heating element, so that the heating element including the segmented first lead and / or the second lead has a stable structure, and when the heating element is working, the energy consumption of the first segment and / or the third segment is lower due to the lower resistivity of the first segment and / or the third segment, thereby effectively reducing the energy consumption of the first lead and / or the third lead. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is a schematic diagram of a heating element in an embodiment disclosed in this application.

[0026] Figure 2 This is a schematic diagram of a heating element in another embodiment disclosed in this application.

[0027] Figure 3 This is a schematic diagram of a heating element in another embodiment disclosed in this application.

[0028] Figure 4 This is a schematic diagram of a heating element in an embodiment disclosed in this application.

[0029] The above drawings include the following reference numerals:

[0030] Heat generating element 100 , heat generating body 10 , heat generating portion 11 , mesh 111 , first electrode 12 , second electrode 13 , first lead 20 , first segment 21 , second segment 22 , second lead 30 , third segment 31 , fourth segment 32 . DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0034] See also Figure 1-4 As shown, the present application provides a heating element 100. The heating element 100 includes a heating element 10, a first lead 20, and a second lead 30. The first lead 20 and the second lead 30 are electrically connected to the heating element 10. The heating element 10 is configured to emit heat when powered to heat the aerosol matrix.

[0035] Furthermore, the heating element 10 is made of one of the high-resistivity 1J50 iron-nickel alloy, pure titanium, palladium, and iron-chromium-aluminum materials, so that when the heating element 100 is powered on, the heating element 10 made of the material with higher resistivity can efficiently emit heat, so as to efficiently heat the aerosol matrix.

[0036] Preferably, the heating element 10 is made of pure titanium. Since pure titanium has a high resistivity, the heating element 10 made of pure titanium can generate heat efficiently when powered.

[0037] At the same time, pure titanium is difficult to weld directly and effectively with low-resistivity materials (such as silver or silver-plated copper) because of its low thermal conductivity and easy absorption of gases and impurities during welding. Even if welding is successful, the welding strength is insufficient and the welded low-resistance material is easy to fall off.

[0038] In the first implementation, see Figure 1 As shown, the first lead 20 is formed by connecting two materials with different resistivities to form a segmented structure, and the second lead 30 is made of the same material to form an integrated structure.

[0039] In this embodiment, the first lead 20 includes a first section 21 and a second section 22. The second section 22 is electrically connected between the first section 21 and the heating element 10, and the resistivity of the second section 22 is greater than that of the first section 21.

[0040] Furthermore, the first section 21 is made of one of silver, copper, and copper plated with silver, and the second section 22 is made of one of nickel and a nickel alloy.

[0041] In this embodiment, the first lead 20 is set to a segmented structure having the first segment 21 and the second segment 22, and the resistivity of the first segment 21 is set to be smaller than the resistivity of the second segment 22, so that the second segment 22 can be stably connected between the first segment 21 and the heating element 10, thereby making the heating element 100 including the first lead 20 with a segmented structure and the second lead 30 with an integrated structure have a stable structure.

[0042] At the same time, when the heating element 100 is working, the first section 21 has a low resistivity, so that the energy consumption of the first section 21 is low, thereby effectively reducing the energy consumption of the first lead 20 .

[0043] In the second implementation, see Figure 2 As shown, the second lead 30 is formed into a segmented structure by connecting two materials with different resistivities, and the first lead 20 is made of the same material into an integrated structure.

[0044] In this embodiment, the second lead 30 includes a third section 31 and a fourth section 32 . The fourth section 32 is electrically connected between the third section 31 and the heating element 10 , and the resistivity of the fourth section 32 is greater than that of the third section 31 .

[0045] Furthermore, the third section 31 is made of one of silver, copper, and copper plated with silver. The fourth section 32 is made of one of nickel and nickel alloy.

[0046] In this embodiment, the second lead 30 is set to a segmented structure having the third segment 31 and the fourth segment 32, and the resistivity of the third segment 31 is set to be smaller than the resistivity of the fourth segment 32, so that the fourth segment 32 can be stably connected between the third segment 31 and the heating element 10, thereby making the heating element 100 including the second lead 30 with a segmented structure and the first lead 20 with an integrated structure have a stable structure.

[0047] At the same time, when the heating element 100 is working, the resistivity of the third section 31 is low, so that the energy consumption of the third section 31 is low, thereby effectively reducing the energy consumption of the third lead.

[0048] In the third implementation, see Figure 3 As shown, the first lead 20 is connected by two materials with different resistivities to form a segmented structure, and the second lead 30 is connected by two materials with different resistivities to form a segmented structure.

[0049] The first lead 20 includes a first section 21 and a second section 22 . The second section 22 is electrically connected between the first section 21 and the heating element 10 , and the resistivity of the second section 22 is greater than that of the first section 21 .

[0050] The second lead 30 includes a third section 31 and a fourth section 32 . The fourth section 32 is electrically connected between the third section 31 and the heating element 10 , and the resistivity of the fourth section 32 is greater than that of the third section 31 .

[0051] Furthermore, the first section 21 and the third section 31 are respectively made of one of silver, copper, and copper plated with silver. The second section 22 and the fourth section 32 are respectively made of one of nickel and a nickel alloy.

[0052] In this embodiment, the first lead 20 is configured to have a segmented structure including the first segment 21 and the second segment 22, and the resistivity of the first segment 21 is set to be lower than the resistivity of the second segment 22, so that the second segment 22 can be stably connected between the first segment 21 and the heating element 10. Furthermore, the second lead 30 is configured to have a segmented structure including the third segment 31 and the fourth segment 32, and the resistivity of the third segment 31 is set to be lower than the resistivity of the fourth segment 32, so that the fourth segment 32 can be stably connected between the third segment 31 and the heating element 10. Thus, the heating element 100 including the segmented second lead 30 and the integrated first lead 20 has a stable structure.

[0053] At the same time, when the heating element 100 is working, since the resistivity of the first section 21 and the third section 31 is low, the energy consumption of the first section 21 and the third section 31 is low, thereby effectively reducing the energy consumption of the first lead 20 and the second lead 30.

[0054] For further information, please refer to Figure 1-4 As shown, the length of the first section 21 is greater than the length of the second section 22, thereby further reducing the energy consumption of the first lead 20 when it is powered on. The length of the third section 31 is greater than the length of the fourth section 32, thereby further reducing the energy consumption of the second lead 30 when it is powered on.

[0055] Specifically, the heating element 10 includes a heating portion 11, a first electrode 12, and a second electrode 13. The first electrode 12 and the second electrode 13 are located at opposite ends of the heating portion 11 along the direction of current flow in the heating portion 11.

[0056] Furthermore, the second segment 22 is connected between the first segment 21 and the first electrode 12 , and the second segment 22 is electrically connected to the first electrode 12 along its length. The length of the second segment 22 is greater than that of the first electrode 12 .

[0057] The fourth segment 32 is connected between the third segment 31 and the second electrode 13 , and is connected to the second electrode 13 along its length. The length of the fourth segment 32 is greater than that of the second electrode 13 .

[0058] Furthermore, the length of the second segment 22 is greater than that of the first electrode 12 , so that the second segment 22 is connected to the first electrode 12 and the first segment 21 respectively.

[0059] The fourth segment 32 is longer than the second electrode 13 , so that the fourth segment 32 is connected to the second electrode 13 .

[0060] In some embodiments, the length of the second segment 22 is at least 3 mm greater than the length of the first electrode 12 , so that after the second segment 22 is connected to the first electrode 12 , it can extend out of the first electrode 12 and connect to the first segment 21 .

[0061] The length of the fourth segment 32 is at least 3 mm greater than the length of the second electrode 13 , so that after the fourth segment 32 is connected to the second electrode 13 , it can extend out of the second electrode 13 and connect to the third segment 31 .

[0062] In some embodiments, along a direction perpendicular to the length of the second segment 22 , the ratio of the width of the first electrode 12 to the width of the connecting surface of the second segment 22 is greater than or equal to 3:1, thereby enabling the second segment 22 to be stably connected to the first electrode 12 .

[0063] Along a direction perpendicular to the length of the fourth segment 32 , the ratio of the width of the second electrode 13 to the width of the connecting surface of the fourth segment 32 is greater than or equal to 3:1, thereby ensuring a stable connection between the fourth segment 32 and the second electrode 13 .

[0064] In some embodiments, the ratio of the length of the first segment 21 to the length of the second segment 22 is greater than or equal to 4:1, thereby effectively reducing the length of the second segment 22 and thereby reducing the energy consumption of the first lead 20 in the energized state.

[0065] The ratio of the length of the third section 31 to the length of the fourth section 32 is greater than or equal to 4:1, thereby effectively reducing the length of the fourth section 32 and thereby reducing the energy consumption of the second lead 30 in the energized state.

[0066] In some embodiments, the diameter of the first segment 21 is smaller than the diameter of the second segment 22 , so that the resistance of the second segment 22 with relatively high resistivity can be effectively reduced when powered, thereby reducing the energy consumption of the second segment 22 .

[0067] The diameter of the third section 31 is smaller than that of the fourth section 32 , so that the resistance of the fourth section 32 with relatively high resistivity can be effectively reduced when powered on, thereby reducing the energy consumption of the fourth section 32 .

[0068] In some embodiments, the first electrode 12, the second electrode 13 and the heating portion 11 are an integrated structure, wherein the heating element 10 is a mesh structure, and the first electrode 12 and the second electrode 13 are sheet structures.

[0069] Furthermore, by setting the heating element 10 into a mesh structure, and setting the first electrode 12 and the second into the sheet structure, when the heating element 10 is powered on, the resistance of the first electrode 12 and the second electrode 13 are respectively lower than the resistance of the heating part 11, so that the heating part 11 can emit higher heat.

[0070] In one embodiment, the length of the heating portion 11 along the first direction is 16.5 mm, and the width along the second direction is 4 mm. The length of the first electrode 12 along the first direction is 1.2 mm, and the width along the second direction is 4 mm. The length of the second electrode 13 along the first direction is 1.2 mm, and the width along the second direction is 4 mm. The width of the first segment 21 along the first direction is 0.3 mm, and the length along the second direction is 30 mm. The width of the second segment 22 along the first direction is 0.4 mm, and the length along the second direction is 10 mm. The width of the third segment 31 along the first direction is 0.3 mm, and the length along the second direction is 30 mm. The width of the fourth segment 32 along the first direction is 0.4 mm, and the length along the second direction is 10 mm.

[0071] The first direction and the second direction are two directions perpendicular to each other, and the first electrode 12 and the second electrode 13 are respectively connected to opposite ends of the heating element 10 along the first direction.

[0072] In some embodiments, the first electrode 12 , the second electrode 13 and the heating portion 11 may also be separate structures, and are connected to each other to form the heating element 10 .

[0073] Furthermore, the heating element 10 may be processed into the mesh structure having the mesh holes 111 through an etching process, a punching process, a laser cutting process, or the like.

[0074] Furthermore, the meshes 111 may be arranged in an array on the heating portion 11, and the shapes of the meshes 111 may be the same or different. For example, the meshes 111 may all be diamond-shaped with the same specifications.

[0075] Furthermore, insulating layers are respectively provided on the surfaces of the first lead 20 and the second lead 30 , thereby externally insulating the first lead 20 and the second lead 30 .

[0076] In some embodiments, the surfaces of the first lead 20 and the second lead 30 are respectively provided with an insulating coating, or the surfaces of the first lead 20 and the second lead 30 are respectively covered with an insulating sleeve, wherein the insulating sleeve can be made of, but is not limited to, Teflon.

[0077] Furthermore, in one embodiment, the first segment 21 and the second segment 22, the second segment 22 and the first electrode 12, the third segment 31 and the fourth segment 32, and the fourth segment 32 and the second electrode 13 are fixedly connected by welding, and electrical connection is achieved at the same time.

[0078] Preferably, the first segment 21 and the second segment 22, the second segment 22 and the first electrode 12, the third segment 31 and the fourth segment 32, and the fourth segment 32 and the second electrode 13 are connected by resistance welding.

[0079] On the other hand, the present application further provides a heating structure, which includes the above-mentioned heating element 100. Therefore, the heating structure has all the technical effects of the above-mentioned heating element 100.

[0080] Furthermore, the heating structure further includes a bracket, which is used to install the heating element 100 , thereby supporting and fixing the heating element 100 .

[0081] Since the technical effects of the heating element 100 have been described in detail above, they will not be repeated here.

[0082] In another aspect, the present application further provides an aerosol generating device having the above-mentioned heating structure. Therefore, the aerosol generating device has all the technical effects of the above-mentioned heating element 100.

[0083] Furthermore, the aerosol generating device further includes a power module which is electrically connected to the heating element 100 and is used to supply power to the heating element 100 so that the heating element 100 heats the aerosol matrix to generate aerosol when powered on.

[0084] The technical effects of the heating element 100 have been described in detail above and will not be repeated here.

[0085] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0086] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0087] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A heating element, characterized in that: include: a heating element configured to generate heat when powered; a first lead and a second lead, wherein the first lead and the second lead are electrically connected to the heating element respectively; The first lead includes a first section and a second section, the second section is electrically connected between the first section and the heating element, and the resistivity of the second section is greater than the resistivity of the first section; And / or, the second lead includes a third section and a fourth section, the fourth section is electrically connected between the third section and the heating element, and the resistivity of the fourth section is greater than the resistivity of the third section.

2. The heating element according to claim 1, characterized in that: The length of the first segment is greater than the length of the second segment; and / or the length of the third segment is greater than the length of the fourth segment.

3. The heating element according to claim 1, characterized in that: The diameter of the first segment is smaller than the diameter of the second segment; and / or the diameter of the third segment is smaller than the diameter of the fourth segment.

4. The heating element according to claim 1, characterized in that: The heating element is made of one of 1J50 iron-nickel alloy, pure titanium, palladium, and iron-chromium-aluminum materials; The first section and the third section are respectively made of one of silver, copper, and copper plated with silver; The second section and the fourth section are respectively made of one of nickel and nickel alloy materials.

5. The heating element according to claim 1, characterized in that: The heating element includes a heating portion, a first electrode, and a second electrode. The first electrode is electrically connected between the second segment and the heating portion, and the second electrode is electrically connected between the fourth segment and the heating portion.

6. The heating element according to claim 5, characterized in that: The first electrode, the second electrode and the heating portion are an integrated structure.

7. The heating element according to claim 5, characterized in that: The heating element is a mesh structure, and the first electrode and the second electrode are respectively sheet structures.

8. The heating element according to claim 1, characterized in that: Insulation layers are respectively provided on surfaces of the first lead and the second lead.

9. A heating structure, characterized in that: The heating structure comprises the heating element according to any one of claims 1 to 8; and A bracket is used to install the heating element.

10. An aerosol generating device, characterized in that: The aerosol generating device comprises the heating structure according to claim 9; and A power supply module is electrically connected to the heating element and is used to supply power to the heating element.

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