CN213073135U - Flexible heating device and wearable product - Google Patents
Flexible heating device and wearable product Download PDFInfo
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- CN213073135U CN213073135U CN202021719041.3U CN202021719041U CN213073135U CN 213073135 U CN213073135 U CN 213073135U CN 202021719041 U CN202021719041 U CN 202021719041U CN 213073135 U CN213073135 U CN 213073135U
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- Resistance Heating (AREA)
Abstract
The utility model discloses a flexible heating device and wearable product. The flexible heating device comprises at least one flexible heating body, a first electrode and a second electrode, wherein the first electrode is electrically connected with a first connection area of the flexible heating body, the second electrode is a continuously extending conductor and is electrically connected with a second connection area and a third connection area of the flexible heating body, and the first connection area is distributed between the second connection area and the third connection area and is arranged at intervals with the second connection area and the third connection area. The flexible heating device provided by the utility model, the first electrode and the plurality of flexible heating bodies are connected to form a fishbone structure, so that the flexible heating device has more uniform current distribution, better heat production uniformity, higher heat production rate and better adaptability, and can obtain a large-size and large-area flexible heating device; the utility model provides a flexible heating device still can avoid partial heat-generating body to damage the influence of whole heating device normal work.
Description
Technical Field
The utility model relates to a flexible heating body, in particular to flexible heating device and wearable product belong to electrical heating technical field.
Background
In recent years, flexible heating bodies are more and more widely applied to intelligent wearing products and are gradually accepted by more and more consumers. The flexible heating body is a heating device which is formed by matching a flexible conductor with a proper electrode structure in a certain geometric shape and can generate heat after being powered by an external power supply. Currently, the commercially available flexible heaters are various in types, and can be classified into carbon fibers, conductive carbon black, graphite/graphene, carbon nanotubes, and the like according to the types of the conductor materials. The carbon nano tube can endow the heating body with ultra-light and ultra-thin characteristics due to the flexibility and better conductivity of the carbon nano tube, so that the non-inductive wearing is realized on wearing, and the carbon nano tube has stronger application value. At present, the carbon nano tube flexible heating body mainly has two preparation technologies, one is a CVD direct deposition method (dry method), the thin film is thinner and lighter, but the yield is low, the surface resistance uniformity is poor, the convenience in operation is lost due to no substrate support, and a large amount of manual manufacturing is needed. The other method is to prepare the carbon nano tube conductive slurry by a die cutting process (wet method) after coating and film forming, although the thickness of the film is slightly increased, the batch consistency is extremely high, and the method is convenient for large-scale mass production and is an effective means for replacing the dry method.
However, the wet process tends to increase the resistance of the thin film, and the electrode needs to be improved in order to better meet the flexibility requirement. Meanwhile, the electrode structure is used for a dry method technology, so that the heating body can be allowed to have larger resistance, the thickness of the heating body is reduced, the flexibility of the heating body is improved, and the cost of the heating body is reduced.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a flexible heating device to overcome the not enough among the prior art.
For realizing the purpose of the utility model, the utility model discloses a technical scheme include:
an embodiment of the utility model provides a flexible heating device, it includes at least one flexible heat-generating body, first electrode and second electrode, first electrode with the first joining region electric connection of flexible heat-generating body, the second electrode be the electric conductor of continuous extension and with the second joining region, the third joining region electric connection of flexible heat-generating body, first joining region distribute between second joining region, third joining region and with second joining region, third joining region interval setting.
The embodiment of the utility model provides a wearable product is still provided, it includes flexible heating device.
Compared with the prior art, the utility model has the advantages that:
the embodiment of the utility model provides a flexible heating device, wherein first electrode with the first connecting region electric connection of flexible heat-generating body, the second electrode is the electric conductor of continuous extension and with the second connecting region of flexible heat-generating body, third connecting region electric connection, and first electrode and a plurality of flexible heat-generating body are connected and are formed the fishbone structure, make this flexible heating device's current distribution more even, the heat production homogeneity is better, the heat production rate is higher, the suitability is better, and can obtain jumbo size, large tracts of land flexible heating device;
the embodiment of the utility model provides a pair of flexible heating device still can avoid partial heat-generating body to damage the influence of whole heating device normal work.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a flexible heating apparatus provided in an exemplary embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a flexible heating apparatus according to an exemplary embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first electrode and a second electrode according to an exemplary embodiment of the present invention.
Detailed Description
In view of the deficiencies in the prior art, the inventor of the present invention has made extensive studies and practices to provide the technical solution of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.
An embodiment of the utility model provides a flexible heating device, it includes at least one flexible heat-generating body, first electrode and second electrode, first electrode with the first joining region electric connection of flexible heat-generating body, the second electrode be the electric conductor of continuous extension and with the second joining region, the third joining region electric connection of flexible heat-generating body, first joining region distribute between second joining region, third joining region and with second joining region, third joining region interval setting.
Furthermore, the first electrode is electrically connected with the first connection area of the flexible heating element, and the second electrode is electrically connected with the second connection area and the third connection area of the flexible heating element.
Further, the second connection area and the third connection area are respectively located at two end portions of the flexible heating body, and the first connection area is located in the middle of the flexible heating body.
Further, the second electrode is of a curved structure.
Further, the second electrode is of a U-shaped or V-shaped structure.
Further, the first electrode and the second electrode are copper foils or copper foil tapes.
Furthermore, the flexible heating device comprises a plurality of flexible heating elements distributed at intervals, wherein the first connecting area of each flexible heating element is electrically combined with the first electrode, and the second connecting area and the third connecting area of each flexible heating element are electrically combined with the second electrode.
Furthermore, the plurality of flexible heating elements and the first electrode are matched to form a fishbone-shaped structure.
Further, the flexible heating body comprises a carbon nanotube film and a multilayer or few-layer graphene film which are prepared by a wet method.
Furthermore, the thickness of the flexible heating element is 0.1-100 μm, the resistance is 5-1000 omega, and the mechanical strength is 50-2000 Mpa.
Further, the flexible heating device further comprises an encapsulation structure layer, and the at least one flexible heating element, the first electrode and the second electrode are encapsulated in the encapsulation structure layer.
Further, the encapsulating structure layer includes any one or two of, but not limited to, dacron cloth, lycra cloth, dacron cloth, cotton cloth, hemp cloth, silk, thermoplastic and thermosetting resin flexible films.
The embodiment of the utility model provides a wearable product is still provided, it includes flexible heating device.
The technical solution, the implementation process and the principle thereof will be further explained with reference to the drawings.
Referring to fig. 1 to 3, a flexible heating device includes a plurality of flexible heating elements 100, a first electrode 200 and a second electrode 300 distributed at intervals, the first electrode 200 is electrically connected to a first connection area 101 of each flexible heating element 100, the second electrode 300 is a continuously extending conductive body and is electrically connected to a second connection area 102 and a third connection area 103 of each flexible heating element 100, the first connection area 101 is distributed between the second connection area 102 and the third connection area 103 and is arranged at intervals with the second connection area 102 and the third connection area 103; wherein the plurality of flexible heating elements 100 are connected to the first electrode 200 to form a fishbone structure.
Specifically, the second connection region 102 and the third connection region 103 are respectively located at both end portions of the flexible heat-generating body 100, the first connection region 101 is located at the middle portion of the flexible heat-generating body 100, and the region corresponding to the middle portion is the region between both end portions of the flexible heat-generating body 100; for example, the first connection region is located at the center between the second connection region and the third connection region, that is, the second connection region, the first connection region and the third connection region are distributed at equal intervals.
Specifically, referring to fig. 3, the second electrode 300 is a positive electrode, and the first electrode 200 is a negative electrode, wherein it can be understood that the second electrode 300 has a curved structure, for example, a U-shaped or V-shaped structure, and the first electrode 200 is disposed in the open space surrounded by the second electrode 300.
Specifically, the first electrode 200 and the second electrode 300 may be copper foils or copper foil tapes, etc., and the flexible heating element 100 may be a carbon nanotube film manufactured by a wet process, wherein the carbon nanotube film has a thickness of 0.1 to 100 μm, a resistance of 5 to 1000 Ω, and a mechanical strength of 50 to 2000 Mpa.
For example, the carbon nanotube film used in the present invention is formed by dispersing a carbon nanotube film material in an aqueous or oily polymer solution and drying the dispersion in a precise coating manner; specifically, the specific process for preparing the carbon nanotube film by the wet method can refer to the process in CN 108848586A; the carbon nanotube film can be prepared in a large scale by a wet coating mode, and the problems of difficult preparation, low yield, poor resistance uniformity, high price and the like of a dry film are solved; and, adopt the carbon nanotube film that wet process coating technology preparation obtained as the heat-generating body of wearable product, the resistance value of the carbon nanotube film who obtains is 5-1000 omega, cooperates the utility model provides a large-size flexible heating device can be designed to first electrode and second electrode, and the design is nimble.
Specifically, a metal connecting layer or a conductive adhesive film 700 is further disposed between the flexible heating element 100 and the first electrode 200 and the second electrode 300, and the flexible heating element 100 is electrically combined with the first electrode 200 and the second electrode 300 through the metal connecting layer or the conductive adhesive film 700; the metal connection layer can be formed by solidifying conductive silver paste, and the conductive adhesive film 700 can be composed of 55-57 wt% of polyester film, 30-32 wt% of mixed resin and 11-15 wt% of silver-plated copper powder.
Specifically, at least two sides of the flexible heating element 100 and the first and second electrodes 200 and 300 are respectively provided with a high temperature insulation layer 400 and 500, and the first and second electrodes 200 and 300 and at least a part of the flexible heating element 100 connected with the first and second electrodes 200 and 300 are encapsulated between the two high temperature insulation layers 400 and 500.
Specifically, the shapes of the high temperature resistant insulating layers 400 and 500 are the same as the shapes of the first electrode 200 and the second electrode 300, and the widths of the high temperature resistant insulating layers 400 and 500 are slightly larger than the widths of the first electrode 200 and the second electrode 300, so that the first electrode 200 and the second electrode 300 are completely encapsulated between the high temperature resistant insulating layer 400 and the high temperature resistant insulating layer 500.
Specifically, one of the two high temperature resistant insulating layers 400 and 500 is a polyimide film, and the other is a polyimide adhesive film, for example, the high temperature resistant insulating layer 400 of the two high temperature resistant insulating layers 400 and 500 is a polyimide film, the thickness of the polyimide film is 10 to 200 μm, and the high temperature resistant insulating layer 400 is disposed on one side close to the flexible heating element 100; the high temperature resistant insulating layer 500 is a polyimide adhesive film having a thickness of 10 to 200 μm, the high temperature resistant insulating layer 500 is disposed at a side close to the first electrode 200 or the second electrode 300, and the first electrode/the second electrode and a part of the flexible heating body are encapsulated between the polyimide adhesive film and the polyimide film by combining the polyimide adhesive film and the polyimide film.
Specifically, the flexible heating apparatus further includes a packaging structure layer (which may be understood as two layers of flexible substrates) 600, and the plurality of flexible heating elements 100 and the first and second electrodes 200 and 300 are packaged in the packaging structure layer 600, wherein the packaging structure layer 600 may be any one or two of a hot melt adhesive film, a polyester fabric, a lycra fabric, a nitrile fabric, a urethane fabric, a vinylon fabric, a terylene fabric, a cotton fabric, a hemp fabric, a silk fabric, a thermoplastic resin flexible film, and a thermosetting resin flexible film.
The embodiment of the utility model provides a pair of flexible heating device, first electrode wherein with the first joining region electric connection of flexible heat-generating body, the second electrode be the continuous electric conductor that extends and with second joining region, the third joining region electric connection of flexible heat-generating body, just first electrode and a plurality of flexible heat-generating body are connected and are formed fishbone column structure for this flexible heating device's current distribution is more even, and the heat production homogeneity is better, and the heat production rate is higher, and the suitability is better, and can obtain jumbo size, the flexible heating device of large tracts of land.
The embodiment of the utility model provides a pair of flexible heating device still can avoid partial heat-generating body to damage the influence of whole heating device normal work.
It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and therefore, the protection scope of the present invention should not be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a flexible heating device, its characterized in that includes at least one flexible heat-generating body, first electrode and second electrode, first electrode with the first joining region electric connection of flexible heat-generating body, the second electrode be continuous extension electric conductor and with the second joining region, the third joining region electric connection of flexible heat-generating body, first joining region distribute between second joining region, third joining region and with second joining region, third joining region interval setting.
2. The flexible heating device of claim 1, wherein: the first electrode is electrically combined with the first connection area of the flexible heating body, and the second electrode is electrically combined with the second connection area and the third connection area of the flexible heating body.
3. The flexible heating device of claim 1, wherein: the second connection area and the third connection area are respectively located at two end parts of the flexible heating body, and the first connection area is located in the middle of the flexible heating body.
4. The flexible heating device of claim 1, wherein: the second electrode is of a curved structure; and/or the second electrode is in a U-shaped or V-shaped structure.
5. The flexible heating device of claim 1, wherein: the first electrode and the second electrode are copper foils or copper foil tapes.
6. The flexible heating device according to claim 1, comprising a plurality of flexible heating elements spaced apart from each other, wherein the first connection region of each flexible heating element is electrically connected to the first electrode, and the second connection region and the third connection region of each flexible heating element are electrically connected to the second electrode.
7. The flexible heating device of claim 6, wherein: the plurality of flexible heating bodies and the first electrode are matched to form a fishbone-shaped structure.
8. The flexible heating device of claim 1, wherein: the flexible heating body comprises a carbon nanotube film and a multilayer or few-layer graphene film which are prepared by a wet method; and/or the thickness of the flexible heating body is 0.1-100 mu m, the resistance is 5-1000 omega, and the mechanical strength is 50-2000 Mpa.
9. The flexible heating device according to claim 1, further comprising an encapsulation structure layer, wherein the at least one flexible heating element and the first and second electrodes are encapsulated in the encapsulation structure layer.
10. A wearable product, characterized by comprising a flexible heating device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719041.3U CN213073135U (en) | 2020-08-18 | 2020-08-18 | Flexible heating device and wearable product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719041.3U CN213073135U (en) | 2020-08-18 | 2020-08-18 | Flexible heating device and wearable product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213073135U true CN213073135U (en) | 2021-04-27 |
Family
ID=75583072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021719041.3U Active CN213073135U (en) | 2020-08-18 | 2020-08-18 | Flexible heating device and wearable product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213073135U (en) |
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2020
- 2020-08-18 CN CN202021719041.3U patent/CN213073135U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220323 Address after: 313000 building A50, cecep (Huzhou) energy conservation and environmental protection industrial park, No. 1506, Yishan Road, high tech Zone, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Hanna New Material Technology Co.,Ltd. Address before: Room 102, building 07, northwest Suzhou nano City, 99 Jinjihu Avenue, Suzhou Industrial Park, 215000, Jiangsu Province Patentee before: HANANO MATERIAL SCIENCE AND TECHNOLOGY Co.,Ltd. SUZHOU |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: Room 102, building 07, northwest Suzhou nano City, 99 Jinjihu Avenue, Suzhou Industrial Park, 215000, Jiangsu Province Patentee after: HANANO MATERIAL SCIENCE AND TECHNOLOGY Co.,Ltd. SUZHOU Address before: 313000 building A50, cecep (Huzhou) energy conservation and environmental protection industrial park, No. 1506, Yishan Road, high tech Zone, Wuxing District, Huzhou City, Zhejiang Province Patentee before: Zhejiang Hanna New Material Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Flexible heating devices and wearable products Granted publication date: 20210427 Pledgee: Bank of Nanjing Limited by Share Ltd. Suzhou branch Pledgor: HANANO MATERIAL SCIENCE AND TECHNOLOGY Co.,Ltd. SUZHOU Registration number: Y2024980009468 |