CN210620694U - High-reflection white EVA adhesive film - Google Patents
High-reflection white EVA adhesive film Download PDFInfo
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- CN210620694U CN210620694U CN201921295192.8U CN201921295192U CN210620694U CN 210620694 U CN210620694 U CN 210620694U CN 201921295192 U CN201921295192 U CN 201921295192U CN 210620694 U CN210620694 U CN 210620694U
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- adhesive film
- eva adhesive
- white
- white eva
- eva
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The utility model relates to a white EVA glued membrane of high reflection relates to the solar cell field. The purpose provides a photovoltaic module is with electrically conductive EVA glued membrane, and this EVA glued membrane should have higher sunlight utilization ratio to improve photovoltaic module's generating capacity. The technical scheme is as follows: the adhesive film sequentially comprises a first transparent EVA adhesive film, a first white EVA adhesive film, an aluminum foil layer, a reflecting layer, a heat conducting layer, a second white EVA adhesive film and a second transparent EVA adhesive film from top to bottom.
Description
Technical Field
The utility model relates to a solar cell field, concretely relates to electrically conductive EVA glued membrane that photovoltaic module used.
Background
The EVA adhesive film is an important material for forming the photovoltaic module, and is required to have the characteristics of transparency, softness, hot-melt adhesion, low melting temperature and good melt flowability.
The existing structures of monocrystalline silicon and polycrystalline silicon modules are generally glass/EVA (ethylene vinyl acetate) film (front film)/battery piece/EVA film (rear film)/back plate. In order to improve the utilization rate of the photovoltaic module to sunlight and further improve the output power of the photovoltaic module, corresponding technical improvements are made on the aspect of an EVA adhesive film, for example, the EVA adhesive film (front film) improves the light transmittance, so that more sunlight is absorbed by a cell; the EVA adhesive film (rear film) forms a white adhesive film by adding titanium dioxide to improve the reflectivity of light, so that sunlight which is not utilized by sunlight is reflected back to be absorbed by the cell piece.
However, the solar utilization of photovoltaic modules has been relatively low to date; and are also a scientific target being overcome by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned background art, provide a photovoltaic module is with electrically conductive EVA glued membrane, this EVA glued membrane should have higher sunlight utilization ratio to improve photovoltaic module's generating capacity.
The utility model provides a technical scheme is:
the utility model provides a white EVA glued membrane of high reflection which characterized in that: the adhesive film sequentially comprises a first transparent EVA adhesive film, a first white EVA adhesive film, an aluminum foil layer, a reflecting layer, a heat conducting layer, a second white EVA adhesive film and a second transparent EVA adhesive film from top to bottom.
The thicknesses of the first transparent EVA adhesive film and the second transparent EVA adhesive film are 0.05-0.1 mm.
The thicknesses of the first white EVA adhesive film and the second white EVA adhesive film are 0.05-0.5 mm.
The thickness of the aluminum foil layer is 0.1 mm.
The thickness of the reflecting layer is 0.1-0.2 mm.
The thickness of the heat conducting layer is 0.1-0.2 mm.
The utility model has the advantages that: the reflectivity of the white EVA adhesive film can reach more than 91%, so that the power of the assembly can be effectively improved; the added reflecting layer and the aluminum foil layer can enable the reflectivity of the EVA adhesive film to reach more than 99%, and the power of the assembly is improved more remarkably; the added heat conducting layer can improve the heat conductivity of the EVA adhesive film, reduce hot spots of the assembly and improve the power generation capacity of the assembly in use; the composite transparent EVA adhesive film can ensure that the bonding capability of the high-reflection white EVA adhesive film is excellent, and the bonding with glass and a back plate is kept at a higher level; the transparent EVA adhesive film is matched with the white EVA adhesive film, and the problems of surface overflow and wrinkles of the white EVA adhesive film can be solved. Therefore the utility model discloses can obviously improve photovoltaic module's generating capacity.
Drawings
Fig. 1 is an enlarged schematic view of the front view structure of the present invention.
Detailed Description
The high-reflection white EVA adhesive film is characterized by sequentially comprising a first transparent EVA adhesive film 1, a first white EVA adhesive film 2, an aluminum foil layer 3, a reflecting layer 4, a heat conducting layer 5, a second white EVA adhesive film 6 and a second transparent EVA adhesive film 7 from top to bottom.
The thickness of the transparent EVA adhesive film (including the first transparent EVA adhesive film and the second transparent EVA adhesive film) is preferably 0.05-0.1 mm; the thickness of the white EVA adhesive film (including the first white EVA adhesive film and the second white EVA adhesive film) is preferably 0.05-0.5 mm; the thickness of the aluminum foil layer is preferably 0.1 mm; the thickness of the reflecting layer is preferably 0.1-0.2 mm; the thickness of the heat conduction layer is preferably 0.1-0.2mm, and the material of the heat conduction layer is preferably copper foil; the thickness of the white EVA adhesive film is preferably 0.05-0.1 mm.
The utility model provides a high reflection white glue film for photovoltaic module, wherein the transparent EVA glue film is matched with the white EVA glue film to solve the problems of surface overflow and wrinkles of the existing white EVA glue film; the aluminium foil layer adds the reflectivity that the reflector layer can promote the glued membrane, and the heat-conducting layer can improve the heat conductivility of EVA glued membrane, gives the better generating efficiency of photovoltaic module, and the heterochrosis of aluminium foil layer, emission layer and heat-conducting layer can be covered to the white EVA glued membrane of second floor, and the transparent EVA glued membrane of lower floor can provide the adhesive property excellent with the photovoltaic backplate.
Claims (7)
1. The utility model provides a white EVA glued membrane of high reflection which characterized in that: the adhesive film sequentially comprises a first transparent EVA adhesive film (1), a first white EVA adhesive film (2), an aluminum foil layer (3), a reflecting layer (4), a heat conducting layer (5), a second white EVA adhesive film (6) and a second transparent EVA adhesive film (7) from top to bottom.
2. The high-reflection white EVA adhesive film of claim 1, wherein: the thicknesses of the first transparent EVA adhesive film and the second transparent EVA adhesive film are 0.05-0.1 mm.
3. The high-reflection white EVA adhesive film of claim 1, wherein: the thicknesses of the first white EVA adhesive film and the second white EVA adhesive film are 0.05-0.5 mm.
4. The high-reflection white EVA adhesive film of claim 1, wherein: the thickness of the aluminum foil layer is 0.1 mm.
5. The high-reflection white EVA adhesive film of claim 1, wherein: the thickness of the reflecting layer is 0.1-0.2 mm.
6. The high-reflection white EVA adhesive film of claim 1, wherein: the thickness of the heat conducting layer is 0.1-0.2 mm.
7. The high-reflection white EVA adhesive film of claim 1, wherein: the thicknesses of the first white EVA adhesive film and the second white EVA adhesive film are 0.05-0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921295192.8U CN210620694U (en) | 2019-08-12 | 2019-08-12 | High-reflection white EVA adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921295192.8U CN210620694U (en) | 2019-08-12 | 2019-08-12 | High-reflection white EVA adhesive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210620694U true CN210620694U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921295192.8U Active CN210620694U (en) | 2019-08-12 | 2019-08-12 | High-reflection white EVA adhesive film |
Country Status (1)
| Country | Link |
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| CN (1) | CN210620694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196343A (en) * | 2021-12-15 | 2022-03-18 | 常州斯威克光伏新材料有限公司 | High-weather-resistance heat-conducting photovoltaic gap film and preparation method thereof |
| CN114854323A (en) * | 2022-05-30 | 2022-08-05 | 盐城百佳年代薄膜科技有限公司 | Four-layer high-reflection non-crosslinked photovoltaic adhesive film and preparation method thereof |
-
2019
- 2019-08-12 CN CN201921295192.8U patent/CN210620694U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196343A (en) * | 2021-12-15 | 2022-03-18 | 常州斯威克光伏新材料有限公司 | High-weather-resistance heat-conducting photovoltaic gap film and preparation method thereof |
| CN114854323A (en) * | 2022-05-30 | 2022-08-05 | 盐城百佳年代薄膜科技有限公司 | Four-layer high-reflection non-crosslinked photovoltaic adhesive film and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: A High Reflective White EVA Adhesive Film Effective date of registration: 20230801 Granted publication date: 20200526 Pledgee: Pudong Development Bank, Shanghai, Shanghai, Hangzhou Ling'an branch Pledgor: ZHEJIANG DILONG PHOTOELECTRICITY MATERIAL Co.,Ltd. Registration number: Y2023980050564 |