CN218071837U - Graphene electrothermal film for large-area heat supply - Google Patents
Graphene electrothermal film for large-area heat supply Download PDFInfo
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- CN218071837U CN218071837U CN202221476093.1U CN202221476093U CN218071837U CN 218071837 U CN218071837 U CN 218071837U CN 202221476093 U CN202221476093 U CN 202221476093U CN 218071837 U CN218071837 U CN 218071837U
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- copper foil
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000011889 copper foil Substances 0.000 claims abstract description 94
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 18
- 239000010439 graphite Substances 0.000 claims abstract description 18
- -1 graphite alkene Chemical class 0.000 claims abstract description 18
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract 2
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 19
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000005485 electric heating Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000005653 Brownian motion process Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Resistance Heating (AREA)
Abstract
The application discloses supply hot graphene electric heat membrane of using of large tracts of land, including the electric heat layer, set up respectively in the barrier layer of electric heat layer top and bottom, the electric heat layer includes the graphite alkene electric heat coating that a plurality of vertical intervals set up, the electrically conductive copper foil that three at least transverse separation set up, all electrically conductive copper foil all connects in all graphite alkene electric heat coating's bottom, the head end of electrically conductive copper foil be the electrode incoming end the tail end of electrically conductive copper foil is the insulating end, and adjacent two the electrode opposite setting of electrode incoming end access of electrically conductive copper foil. This application guarantees the effective heating area of whole electric heat membrane through the graphite alkene electric heat coating that the interval set up, and many electrically conductive copper foils that the cooperation electrode interval set up reduce the interval between positive negative pole/fire zero line on the electric heat membrane, combine the principle that graphite alkene electric heat coating radiation generated heat, improve the efficiency of generating heat on the whole electric heat membrane, guarantee feasibility and the reliability of electric heat membrane large tracts of land heat supply when safe voltage supplies power.
Description
Technical Field
The application relates to the technical field of electrothermal films, in particular to a graphene electrothermal film for large-area heat supply.
Background
Graphite alkene electric heat membrane belongs to graphite alkene material postprocessing high-tech product, generally is used for graphite alkene to warm up, health preserving heating pad, heating tatami, electric heat heatable brick bed, sweat evaporates room, electric heating product, health care protective equipment, electric heat panel etc.. The surface of the graphene electrothermal film is made of high polymer resin, so that the graphene electrothermal film is safe, practical, foldable, nontoxic and harmless, green and environment-friendly; high temperature resistance of 120 ℃, acid and alkali resistance, IPX7 level waterproofing and V2 level flame retardance. The heating principle of the graphene electrothermal film is as follows: under the action of an electric field, carbon molecular groups in the heating body generate Brownian motion, violent friction and impact are generated among carbon molecules, the generated heat energy is transmitted to the outside in the forms of far infrared radiation and convection, and the surface of the system is rapidly heated under the action of the carbon molecules. In the application of the graphene electrothermal film in the safe voltage (below 36V), the graphene electrothermal film structure is mostly formed by connecting two sides of two conductive materials and a graphene material, the two conductive materials are electrified and then heated, and when the graphene electrothermal film is electrified, the heating power of the whole graphene electrothermal film is small, so that the application of the graphene electrothermal film in a small-area environment can be met. However, when the area of the use environment is large, the area of the required graphene material needs to be correspondingly increased, and under the condition that power is supplied by adopting safe voltage (below 36V), the traditional mode that the conductive material and the graphene material are connected is adopted, the electrode distance between the two conductive materials is large, and based on the radiation heating principle of the graphene electrothermal film, the efficiency of achieving uniform heating of the whole graphene material is poor. Therefore, the graphene electrothermal film for large-area heat supply is provided.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a graphite alkene electric heat membrane for large tracts of land heat supply to solve graphite alkene electric heat membrane power less, at the relatively poor problem of large tracts of land heat supply efficiency under the safe voltage power supply condition among the prior art who provides in the above-mentioned background art.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a large tracts of land supplies heat and uses graphite alkene electric heat membrane, include the electric heat layer, set up respectively in the barrier layer of electric heat layer top and bottom, the electric heat layer includes the graphite alkene electric heat coating that a plurality of vertical intervals set up, the electrically conductive copper foil that three at least transverse interval set up, all electrically conductive copper foil all connects in all graphite alkene electric heat coating's bottom, the head end of electrically conductive copper foil be the electrode incoming end the tail end of electrically conductive copper foil is the insulating end, and adjacent two the electrode opposite setting of electrode incoming end access of electrically conductive copper foil.
Preferably, all the conductive copper foils are sequentially defined as a 1 st copper foil, a 2 nd copper foil, … …, an a th copper foil, an a +1 th copper foil, … … and an n th copper foil, wherein n is an integer and is not less than 3, an electrode access end of the a th copper foil is connected with a live wire of an alternating current power supply, and an electrode access end of the a +1 th copper foil is connected with a zero wire of the alternating current power supply.
Preferably, all the conductive copper foils are sequentially defined as a 1 st copper foil, a 2 nd copper foil, … …, an a th copper foil, an a +1 th copper foil, … … and an n th copper foil, wherein n is an integer and is not less than 3, the electrode access end of the a th copper foil is connected with the anode of a direct current power supply, and the electrode access end of the a +1 th copper foil is connected with the cathode of the direct current power supply.
Preferably, the barrier layer is provided with a plurality of fractured stripes for marking the shearable positions, and the fractured stripes are arranged between two adjacent graphene electrothermal coatings.
Preferably, the barrier layer is a PET composite layer.
Has the advantages that: the utility model provides a large tracts of land is graphite alkene electric heat membrane for heat supply, the effective heating area of whole electric heat membrane is ensured through the graphite alkene electric heat coating that the interval set up, many electrically conductive copper foils that the cooperation electrode interval set up reduce the interval between positive negative pole/fire zero line on the electric heat membrane, combine the principle that graphite alkene electric heat coating radiation generated heat, improve the "square heating power" of whole electric heat membrane, improve the heating efficiency of each square unit on the whole electric heat membrane promptly under the condition of safe voltage (below voltage 36V), ensure the feasibility and the reliability of large tracts of land heat supply.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exploded view of a structure of a large-area graphene electrothermal film for heat supply in an embodiment of the present application;
FIG. 2 is a schematic view of the position of a breaking line in the embodiment of the present application.
Reference numerals: 1. a barrier layer; 2. a graphene electrothermal coating; 3. a conductive copper foil; 4. and (4) breaking lines.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present disclosure and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that the standard parts used in the present specification are commercially available and can be customized according to the description and drawings. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present disclosure will be understood by those of ordinary skill in the art as appropriate, and machines, parts and equipment may be of a type conventional in the art without specific limitations.
In this document, the term "comprises/comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
Examples
Referring to fig. 1, a large-area heating graphene electrothermal film includes an electrothermal layer and barrier layers 1 respectively disposed on the top and the bottom of the electrothermal layer, the electrothermal layer includes a plurality of graphene electrothermal coatings 2 disposed at vertical intervals and at least three conductive copper foils 3 disposed at horizontal intervals, the barrier layers 1 may be any one of those in the prior art, and are generally made of waterproof, flame-retardant and other polymer materials, for example, in this embodiment, the barrier layers 1 are PET composite layers. All the conductive copper foils 3 are connected to the bottoms of all the graphene electrothermal coatings 2, the head ends of the conductive copper foils 3 are electrode access ends, the tail ends of the conductive copper foils 3 are insulation ends, electrodes accessed to the electrode access ends of two adjacent conductive copper foils 3 are oppositely arranged, and the thickness of each graphene electrothermal coating 2 is generally 5-30 micrometers. The barrier layer 1, the graphene electrothermal coating 2 and the conductive copper foil 3 are connected in a connection manner in the prior art.
Based on the graphene electrothermal film for large-area heat supply, the effective heating area of the whole electrothermal film is ensured through the graphene electrothermal coating 2 arranged at intervals, the distance between a positive electrode and a negative electrode/fire zero line on the electrothermal film is reduced by matching with a plurality of conductive copper foils 3 arranged at intervals of electrodes, and by combining the radiation heating principle of the graphene electrothermal coating 2, in the actual use process, through the detection of a product, after the product is electrified, the working current on the electrothermal film is about 3A/square meter, even if the square heating power of the whole electrothermal film is improved, the square heating power refers to the heating efficiency of each square unit on the whole electrothermal film, so that the requirement of large-area heat supply can be met, the reliability of large-area heat supply through the graphene electrothermal film under the condition of safe voltage is improved, and the safe voltage refers to the power supply voltage below 36V. Generally, the square heating power of the electric heating film in the embodiment is about 100W/square meter.
When the power supply is an alternating current power supply: all the conductive copper foils 3 are sequentially defined as a 1 st copper foil, a 2 nd copper foil, … …, an a th copper foil, an a +1 th copper foil, … … and an nth copper foil, wherein n is an integer and is not less than 3, the electrode access end of the a th copper foil is connected with a live wire of an alternating current power supply, and the electrode access end of the a +1 th copper foil is connected with a zero line of the alternating current power supply. It should be noted that a and a +1 are introduced only to refer to two adjacent copper foils, and in particular, when n is 3, the a-th copper foil is the 1 st or 2 nd copper foil, and when n is 4, the a-th copper foil is any one of the 1 st, 2 nd and 3 rd copper foils. In the present embodiment, for example, n is 5,a is 2 or 4, wherein the electrode terminals of the 1 st copper foil, the 3 rd copper foil and the 5 th copper foil are connected to the zero line of the ac power supply, and the electrode terminals of the 2 nd copper foil and the 4 th copper foil are connected to the live line of the ac power supply.
When the power supply is a direct current power supply: all the conductive copper foils 3 are sequentially defined as a 1 st copper foil, a 2 nd copper foil, … …, an a th copper foil, an a +1 th copper foil, … … and an nth copper foil, wherein n is an integer and is not less than 3, the electrode access end of the a th copper foil is connected with the anode of a direct current power supply, and the electrode access end of the a +1 th copper foil is connected with the cathode of the direct current power supply. It should be noted that a and a +1 are introduced only to refer to two adjacent copper foils, and in particular, when n is 3, the a-th copper foil is the 1 st or 2 nd copper foil, and when n is 4, the a-th copper foil is any one of the 1 st, 2 nd and 3 rd copper foils. In the present embodiment, for example, n is 5,a is 2 or 4, wherein the electrode terminals of the 1 st copper foil, the 3 rd copper foil and the 5 th copper foil are connected to the negative electrode of the ac power supply, and the electrode terminals of the 2 nd copper foil and the 4 th copper foil are connected to the positive electrode of the ac power supply.
As a preferred embodiment of this embodiment, referring to fig. 2, if each breaking line 4 for identifying a shearable position is disposed on the barrier layer 1, the position of the breaking line 4 is disposed between two adjacent graphene electrothermal coatings 2. The breaking lines 4 may be any one of the related art, such as a dot breaking line drawn on the barrier layer 1 for indicating a position or an easy-to-tear line formed on the barrier layer 1 by a processing method in the related art. The position of the fracture grain 4 is arranged between the two adjacent graphene electric heating coatings 2, namely in the overlooking direction of the electric heating film, the fracture grain 4 is arranged between the two adjacent graphene electric heating coatings 2, so that the purpose of setting is to avoid cutting the graphene electric heating coatings 2 when the electric heating film is required to be cut off for use, thereby avoiding influencing the working stability of the graphene electric heating coatings 2 and ensuring the heating uniformity of the whole electric heating film. After the cutting, the exposed portion of the conductive copper foil 3 may be subjected to an insulating treatment using an insulating paste according to the related art.
Finally, it should be noted that: although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the present application.
Claims (5)
1. The utility model provides a large tracts of land supplies heat and uses graphite alkene electric heat membrane, its characterized in that, including the electric heat layer, set up respectively in barrier layer (1) of electric heat layer top and bottom, the electric heat layer includes graphite alkene electric heat coating (2) that a plurality of vertical intervals set up, electrically conductive copper foil (3) that three at least transverse separation set up, all electrically conductive copper foil (3) all connect in all the bottom of graphite alkene electric heat coating (2), the head end of electrically conductive copper foil (3) be the electrode incoming end the tail end of electrically conductive copper foil (3) is the insulating end, and adjacent two the electrode opposite setting of the electrode incoming end access of electrically conductive copper foil (3).
2. The graphene electrothermal film for large-area heat supply according to claim 1, wherein all the conductive copper foils (3) are sequentially defined as a 1 st copper foil, a 2 nd copper foil, … …, an a th copper foil, an a +1 th copper foil, … … and an n th copper foil, n is an integer and n is greater than or equal to 3, wherein an electrode access end of the a th copper foil is connected with a live wire of an alternating current power supply, and an electrode access end of the a +1 th copper foil is connected with a zero wire of the alternating current power supply.
3. The graphene electrothermal film for large-area heat supply according to claim 1, wherein all the conductive copper foils (3) are sequentially defined as a 1 st copper foil, a 2 nd copper foil, … …, an a th copper foil, an a +1 th copper foil, … … and an n th copper foil, n is an integer and n is greater than or equal to 3, wherein an electrode access end of the a th copper foil is connected with a positive electrode of a direct current power supply, and an electrode access end of the a +1 th copper foil is connected with a negative electrode of the direct current power supply.
4. The graphene electrothermal film for large-area heat supply according to claim 1, wherein a plurality of breaking lines (4) for identifying cuttable positions are arranged on the barrier layer (1), and the positions of the breaking lines (4) are arranged between two adjacent graphene electrothermal coatings (2).
5. The graphene electrothermal film for large area heat supply according to claim 1, wherein the barrier layer (1) is a PET composite layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221476093.1U CN218071837U (en) | 2022-06-13 | 2022-06-13 | Graphene electrothermal film for large-area heat supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221476093.1U CN218071837U (en) | 2022-06-13 | 2022-06-13 | Graphene electrothermal film for large-area heat supply |
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| Publication Number | Publication Date |
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| CN218071837U true CN218071837U (en) | 2022-12-16 |
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| CN202221476093.1U Active CN218071837U (en) | 2022-06-13 | 2022-06-13 | Graphene electrothermal film for large-area heat supply |
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| CN (1) | CN218071837U (en) |
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- 2022-06-13 CN CN202221476093.1U patent/CN218071837U/en active Active
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Effective date of registration: 20231224 Address after: 528000, 3rd Floor, Building A, Building 1, Foshan Anjie Health Industrial Park, No. 27 Hongling 3rd Road, Shishan Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Kewei Technology Co.,Ltd. Address before: 510000 Room 516, 5th floor, building 1, No.1, Ruifa Road, Huangpu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou zhongkesengu Digital Economy Research Institute Co.,Ltd. |