CN211296983U - Electrothermal film - Google Patents
Electrothermal film Download PDFInfo
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- CN211296983U CN211296983U CN202020193939.5U CN202020193939U CN211296983U CN 211296983 U CN211296983 U CN 211296983U CN 202020193939 U CN202020193939 U CN 202020193939U CN 211296983 U CN211296983 U CN 211296983U
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- electrothermal film
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- heating
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- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000007731 hot pressing Methods 0.000 claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 169
- 239000002344 surface layer Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 8
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 6
- 229910001887 tin oxide Inorganic materials 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910003437 indium oxide Inorganic materials 0.000 claims description 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 22
- 239000001301 oxygen Substances 0.000 abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 21
- 239000012528 membrane Substances 0.000 abstract description 15
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000005485 electric heating Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a heating technical field, concretely relates to electric heat membrane. This electric heat membrane includes: the heating layer comprises an electrothermal film layer, a first electrode, a second electrode and a supporting layer; the first electrode is positioned on the left side of the electrothermal film layer and is electrically connected with the electrothermal film layer; the second electrode is positioned on the right side of the electrothermal film layer and is electrically connected with the electrothermal film layer; the supporting layer is superposed with the electrothermal film layer up and down and is used for supporting and fixing the electrothermal film layer, the first electrode and the second electrode; and the waterproof oxygen-isolating insulating layer is wrapped around the heating layer in a hot pressing manner and is used for packaging the heating layer. The embodiment of the utility model provides a around the layer that generates heat, the hot pressing has wrapped up in and has attached waterproof oxygen insulating layer that separates, will generate heat the layer and sealed waterproof oxygen insulating layer that separates, and the emergence of the circumstances such as oxidation corrosion that the electric heat rete, first electrode and the second electrode in avoiding generating heat in the layer leads to because of contact oxygen and moisture has improved the separation nature of electric heat membrane to moisture and oxygen, and then has improved the life of electric heat membrane.
Description
Technical Field
The utility model relates to a heating technical field, concretely relates to electric heat membrane.
Background
The traditional heating method is to burn fossil fuel and convert the chemical energy of the fossil fuel into heat energy. However, this solution has a large area limitation, low energy conversion efficiency, and is likely to pollute the environment. And the heating by adopting the electrothermal film is a green and efficient heating mode. The during operation uses the electric heat membrane as the heat-generating body, sends the space into with the form of radiation with the heat to realize the effect of heating. The electric heating film is a pure resistance circuit, so the conversion efficiency is high. However, the structure of the electric heating film is fragile, and meanwhile, the heating material is easy to oxidize, which seriously affects the service life of the electric heating film.
Therefore, how to improve the service life of the electrothermal film is a technical problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electrothermal film to improve the life of current electrothermal film.
The embodiment of the utility model provides a following scheme:
the embodiment of the utility model provides an electrothermal film, electrothermal film includes:
the heating layer comprises an electrothermal film layer, a first electrode, a second electrode and a supporting layer;
the first electrode is positioned on the left side of the electrothermal film layer and is electrically connected with the electrothermal film layer;
the second electrode is positioned on the right side of the electrothermal film layer and is electrically connected with the electrothermal film layer;
the supporting layer is superposed with the electrothermal film layer up and down and is used for supporting and fixing the electrothermal film layer, the first electrode and the second electrode;
and the waterproof oxygen-isolating insulating layer is wrapped around the heating layer in a hot-pressing manner and is used for packaging the heating layer.
In one possible embodiment, the waterproof oxygen-insulating layer comprises a first surface layer and a second surface layer which are overlapped inside and outside; wherein the first surface layer and the second surface layer are any two of a polyethylene layer, a polypropylene layer and a nylon layer.
In one possible embodiment, the support layer is stacked on the upper side, the lower side, or both the upper and lower sides of the electrocaloric film layer and extends in the left-right direction to the position of the first electrode and the position of the second electrode, respectively.
In one possible embodiment, the support layer is a polyethylene terephthalate film layer or a polyimide film layer.
In one possible embodiment, the electric heating film layer comprises a porous substrate layer and a heating material layer, and the heating material layer is coated on the porous substrate layer.
In one possible embodiment, the heat-generating material layer is any one of a graphite slurry layer, a carbon nanotube slurry layer, a graphene slurry layer, a conductive polymer layer, an antimony-doped tin oxide slurry layer, a fluorine-doped tin oxide slurry layer, and a tin-doped indium oxide layer.
In one possible embodiment, the first electrode and the second electrode are both woven meshes of metal wires.
In one possible embodiment, the first electrode and the second electrode are both metal conductive sheets.
In one possible embodiment, the first skin layer has a thickness of 0.08mm to 0.18mm and the second skin layer has a thickness of 0.08mm to 0.18 mm.
In one possible embodiment, the thickness of the support layer is 0.075mm to 0.25 mm.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses around the layer that generates heat, the hot pressing is wrapped up in and has been attached waterproof oxygen insulating layer that separates, will generate heat the layer and sealed waterproof oxygen insulating layer that separates, avoid the electric heat rete in the layer that generates heat, first electrode and second electrode because of the emergence of the circumstances such as oxidation corrosion that contact oxygen and moisture lead to, improved the separation nature of electric heat membrane to moisture and oxygen, and then improved the life of electric heat membrane.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present specification, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a possible embodiment of an electrothermal film according to the present invention;
fig. 2 is a schematic cross-sectional structure diagram of a possible embodiment of an electrothermal film according to the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a possible embodiment of an electrothermal film according to the present invention.
Description of reference numerals: 1 is a heating layer, 1-1 is an electric heating film layer, 1-2 is a first electrode, 1-3 is a second electrode, 1-4 is a supporting layer, 2 is a waterproof oxygen-insulating layer, 2-1 is a first surface layer, and 2-2 is a second surface layer.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an electrothermal film according to an embodiment of the present invention, including: the heating device comprises a heating layer 1, an electric heating film layer 1-1, a first electrode 1-2, a second electrode 1-3, a supporting layer 1-4 and a waterproof oxygen-insulating layer 2.
Wherein, the heating layer 1 comprises an electrothermal film layer 1-1, a first electrode 1-2, a second electrode 1-3 and a supporting layer 1-4; the first electrode 1-2 is positioned at the left side of the electrothermal film layer 1-1 and is electrically connected with the electrothermal film layer 1-1; the second electrode 1-3 is positioned on the right side of the electrothermal film layer 1-1 and is also in conductive connection with the electrothermal film layer 1-1; the support layer 1-4 and the electrothermal film layer 1-1 are arranged in an up-and-down overlapping manner and used for supporting and fixing the electrothermal film layer, the first electrode and the second electrode.
In this embodiment, the heating material is disposed in the electric heating film layer 1-1, and when the first electrode 1-2 and the second electrode 1-3 are energized, the heating material in the electric heating film layer 1-1 is energized to convert electric energy into heat energy, and heat is supplied to the surrounding space through a heat radiation manner.
In this embodiment, the first electrode 1-2 and the second electrode 1-3 may be connected by welding, conductive adhesive, or the like, so as to achieve conductive connection with the electrothermal film layer 1-1.
In this embodiment, the periphery of the heating layer 1 is further wrapped with a waterproof oxygen-insulating layer 2. Specifically, waterproof oxygen insulating layer 2 wraps up around attaching to layer 1 that generates heat through hot pressing technology, through the hot pressing, when having realized the encapsulation to layer 1 that generates heat, has still discharged the air and the moisture that generate heat between layer 1 and the waterproof oxygen insulating layer 2 that separates to avoid generating heat layer 1 and contact moisture and oxygen. In addition, the electric heating film structure provided in the embodiment is very suitable for roll-to-roll continuous hot-pressing production and preparation, and has higher production efficiency.
In order to improve the insulating performance of the waterproof oxygen-barrier insulating layer 2, as a preferred embodiment, the waterproof oxygen-barrier insulating layer 2 in this embodiment has a multilayer structure.
Here, taking a two-layer structure as an example, please refer to fig. 2, and fig. 2 is a schematic sectional structure diagram of an electrothermal film according to an embodiment of the present invention, in which the water-oxygen insulation layer 2 includes a first surface layer 2-1 and a second surface layer 2-2 which are stacked inside and outside; the first surface layer 2-1 is the outer surface of the water oxygen insulation layer 2, and the second surface layer 2-2 is the inner surface of the water oxygen insulation layer 2.
Specifically, the first surface layer 2-1 and the second surface layer 2-2 are made of different materials, and the first surface layer 2-1 and the second surface layer 2-2 are any two of a polyethylene layer, a polypropylene layer and a nylon layer.
Specifically, the thickness of the first surface layer is 0.08mm to 0.18mm, and the thickness of the second surface layer is 0.08mm to 0.18 mm.
This embodiment has improved waterproof isolated performance at oxygen insulating layer 2 through the cooperation of inside and outside two-layer to the life of electric heat membrane has been promoted.
For the preparation degree of difficulty that reduces the electric heat rete, improve the production efficiency of electric heat membrane, as preferred embodiment, this embodiment still provides a specific electric heat rete structure.
The electric heating film layer 1-1 in this embodiment includes a porous substrate layer and a heating material layer, and the heating material layer is coated on the porous substrate layer.
Specifically, the heating material layer may be any one of a graphite slurry layer, a carbon nanotube slurry layer, a graphene slurry layer, a conductive polymer layer, an antimony-doped tin oxide slurry layer, a fluorine-doped tin oxide slurry layer, and a tin-doped indium oxide layer.
Specifically, the porous substrate layer can select for use non-woven fabrics or weave etc. through the porous structure on the porous substrate layer, can effectively fix the heating material layer.
In order to maintain the shape and the overall structure of the heating layer and improve the capability of the electrothermal film against external impact, as a preferred embodiment, the embodiment further provides specific structures of the support layers 1 to 4.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of an electrothermal film according to an embodiment of the present invention, in this embodiment, support layers 1-4 are stacked on upper and lower sides of the electrothermal film layer 1-1 and respectively extend to the positions of the first electrode 1-2 and the second electrode 1-3 in the left-right direction.
Specifically, the supporting layer 1-4 is a high temperature resistant film, and a glue coating layer is further arranged on one side of the supporting layer, which is in contact with the electrothermal film layer 1-1, so as to fix the shape of the heating film layer 1-1 and improve the mechanical strength of the heating film layer.
Specifically, the support layers 1 to 4 may be polyethylene terephthalate film layers or polyimide film layers.
Specifically, the thickness of the support layer 1-4 is 0.075-0.25 mm, and the stability of the heating layer 1 is ensured, and meanwhile, the good flexible deformation performance is provided for the heating layer.
Of course, the support layer 1-4 can also be only located at the upper side or the lower side of the electrothermal film layer 1-1, which is not described herein.
In order to provide good conductivity for the electrothermal film layer 1-1, the present embodiment also provides specific structures of the first electrode 1-2 and the second electrode 1-3 as a preferred embodiment.
In this embodiment, the first electrode 1-2 and the second electrode 1-3 are both metal wire mesh grids.
Specifically, the metal wire is preferably made of copper wire, silver wire or stainless steel wire, and the diameter of the metal wire is preferably 0.05 to 0.2 mm. The metal wire mesh grid is formed by weaving 1 to 50 metal wires by using the existing weaving technology and is distributed on two sides of the heating film layer 1-1.
In order to provide good conductivity for the electrothermal film layer 1-1, the present embodiment also provides specific structures of the first electrode 1-2 and the second electrode 1-3 as a preferred embodiment.
In this embodiment, the first electrode and the second electrode are both metal conductive sheets.
In particular, the metallic conductive sheet is preferably a copper strip having a thickness of 0.03 to 0.1mm and a width of 5 to 15 mm. The copper strip is attached to the side surface of the electrothermal film layer 1-1 through a conductive gluing layer.
The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:
the embodiment of the utility model provides a around the layer that generates heat, the hot pressing has wrapped up in and has attached waterproof oxygen insulating layer that separates, will generate heat the layer and sealed waterproof oxygen insulating layer that separates, and the emergence of the circumstances such as oxidation corrosion that the electric heat rete, first electrode and the second electrode in avoiding generating heat in the layer leads to because of contact oxygen and moisture has improved the separation nature of electric heat membrane to moisture and oxygen, and then has improved the life of electric heat membrane.
Further, the utility model discloses the electric heat membrane has higher preparation production efficiency, only needs through a hot pressing, can accomplish the layer that generates heat and waterproof oxygen insulating layer that separates's sealed, simple high-efficient.
Further, the embodiment of the utility model provides a waterproof oxygen insulating layer that separates is two-layer structure at least, and the material on every layer constitutes differently, has further improved the separation nature of electric heat membrane to moisture and oxygen, and then has improved the life of electric heat membrane.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An electrothermal film, comprising:
the heating layer comprises an electrothermal film layer, a first electrode, a second electrode and a supporting layer;
the first electrode is positioned on the left side of the electrothermal film layer and is electrically connected with the electrothermal film layer;
the second electrode is positioned on the right side of the electrothermal film layer and is electrically connected with the electrothermal film layer;
the supporting layer is superposed with the electrothermal film layer up and down and is used for supporting and fixing the electrothermal film layer, the first electrode and the second electrode;
and the waterproof oxygen-isolating insulating layer is wrapped around the heating layer in a hot-pressing manner and is used for packaging the heating layer.
2. The electrothermal film according to claim 1, wherein the waterproof oxygen-barrier insulating layer comprises a first surface layer and a second surface layer which are stacked inside and outside; wherein the first surface layer and the second surface layer are any two of a polyethylene layer, a polypropylene layer and a nylon layer.
3. The electrothermal film according to claim 1, wherein the support layer is stacked on an upper side, a lower side, or both of the upper and lower sides of the electrothermal film layer, and extends to a position of the first electrode and a position of the second electrode in a left-right direction, respectively.
4. The electrothermal film of claim 3, wherein the support layer is a polyethylene terephthalate film layer or a polyimide film layer.
5. The electrothermal film of claim 1, wherein the electrothermal film layer comprises a porous substrate layer and a heat-generating material layer, the heat-generating material layer being coated on the porous substrate layer.
6. The electrothermal film according to claim 5, wherein the heat generating material layer is any one of a graphite paste layer, a carbon nanotube paste layer, a graphene paste layer, a conductive polymer layer, an antimony-doped tin oxide paste layer, a fluorine-doped tin oxide paste layer, and a tin-doped indium oxide layer.
7. The electrothermal film of claim 1, wherein the first and second electrodes are each a woven mesh of metal wires.
8. The electrothermal film of claim 1, wherein the first electrode and the second electrode are both metallic conductive sheets.
9. The electrothermal film of claim 2, wherein the first skin layer has a thickness of 0.08mm to 0.18mm, and the second skin layer has a thickness of 0.08mm to 0.18 mm.
10. The electrothermal film of claim 1, wherein the support layer has a thickness of 0.075mm to 0.25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020193939.5U CN211296983U (en) | 2020-02-21 | 2020-02-21 | Electrothermal film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020193939.5U CN211296983U (en) | 2020-02-21 | 2020-02-21 | Electrothermal film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211296983U true CN211296983U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020193939.5U Active CN211296983U (en) | 2020-02-21 | 2020-02-21 | Electrothermal film |
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| CN (1) | CN211296983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194100A (en) * | 2020-02-21 | 2020-05-22 | 河南问暖电子科技有限公司 | Electrothermal film and preparation method thereof |
| CN114245498A (en) * | 2021-12-29 | 2022-03-25 | 新华盛节能科技股份有限公司 | Graphene far infrared electric heating flexible cloth and production process thereof |
-
2020
- 2020-02-21 CN CN202020193939.5U patent/CN211296983U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194100A (en) * | 2020-02-21 | 2020-05-22 | 河南问暖电子科技有限公司 | Electrothermal film and preparation method thereof |
| CN114245498A (en) * | 2021-12-29 | 2022-03-25 | 新华盛节能科技股份有限公司 | Graphene far infrared electric heating flexible cloth and production process thereof |
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