CN201523014U - Insulating back plate of solar energy photovoltaic battery - Google Patents
Insulating back plate of solar energy photovoltaic battery Download PDFInfo
- Publication number
- CN201523014U CN201523014U CN 200920049398 CN200920049398U CN201523014U CN 201523014 U CN201523014 U CN 201523014U CN 200920049398 CN200920049398 CN 200920049398 CN 200920049398 U CN200920049398 U CN 200920049398U CN 201523014 U CN201523014 U CN 201523014U
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- China
- Prior art keywords
- layer
- electric insulation
- tack coat
- base material
- insulating back
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
Abstract
An insulating back plate of a solar energy photovoltaic battery belongs to the technical field of solar energy photovoltaic battery components and comprises a substrate, a first protection body combined on one side surface of the substrate, and a second protection body on the other side surface of the substrate. The insulating back plate is characterized in that the first protection body comprises a first bonding layer and an anti-weathering layer, wherein, the first bonding layer is arranged between the substrate and the anti-weathering layer; the second protection body comprises a second bonding layer, an electric insulation layer, a third bonding layer and a splicing layer, wherein, the second bonding layer is combined with the substrate; one side surface of the electric insulation layer is combined with the second bonding layer, and the third bonding layer is combined with the other side surface of the electric insulation layer; and the splicing layer is combined with the third bonding layer. The utility model not only has ideal water-vapor insulation performance and weatherability, but also achieves excellent electric insulation effect through the added electric insulation layer.
Description
Technical field
The utility model belongs to the solar photovoltaic battery component technical field, is specifically related to a kind of insulating back panel of solar photovoltaic cell, is the improvement to the insulating back panel of solar photovoltaic cell structure in the prior art.
Background technology
The overall structure of solar-energy photo-voltaic cell comprises: be installed on solar energy glass on the framework (generally using the aluminium extruded material as framework), be positioned at battery sheet (also claiming silicon chip or silicon plate), hot melt adhesive layer (EVA layer), terminal box and the insulating back panel of solar energy glass below; insulating back panel is positioned at the below of battery sheet, plays the insulation protection effect to solar cell.As the industry's knowledge of the reason; because solar module is installed on outdoor usually; therefore must require insulating back panel to have good weatherability properties, water vapor barrier property and electric insulating quality and chemical resistance, so that effectively battery sheet, welding and the electrode of solar photovoltaic battery component embodied excellent protection.
Chinese invention patent application publication number CN101359695A has recommended a kind of solar cell backboard, it is to be made of base material, weathering layer and the barrier layer between base material and weathering layer, though the solar cell backboard of this structure has good water vapor rejection effect and weather resistance, does not have the electric insulation effect.Again, the Chinese invention patent application publication number CN101515603A provide a kind of solar cell backboard, three kinds of versions have been provided, first kind is the side surface coating protective layer (being made of tack coat and fluorine-containing coat) at the sheet material of impermeability, contains fluorine film in the opposite side surface recombination of sheet material; Second kind is that both side surface at the sheet material of impermeability respectively is coated with protective layer, and each is made of protective layer tack coat and fluorine-containing coat; The third is at a side of the sheet material of impermeability coating protective layer (being made of tack coat and fluorine-containing coat), and coating surface coating outside protective layer again is at the opposite side surface coated protective layer (being made of tack coat and fluorine-containing coat equally) of sheet material.The solar cell backboard of this structure is with the shortcoming of depositing last patent application, and promptly electrical insulation properties is comparatively fragile.Why above-mentioned two patent schemes exist described shortcoming, perhaps be the influence that is subjected to U.S. US3133854U, US5139878U and US6632518U, therefore, the applicant thinks and is necessary the structure of present insulating back panel of solar photovoltaic cell is done rationally to improve.
Summary of the invention
Task of the present utility model is to provide a kind of insulating back panel of solar photovoltaic cell that desirable water vapor rejection performance, weather resistance and electrical insulation properties are had both.
Task of the present utility model is finished like this, a kind of insulating back panel of solar photovoltaic cell, comprise base material, be incorporated into base material a side surface first protective and be incorporated into second protective on the opposite side surface of base material, characteristics are: described first protective comprises first tack coat and weathering layer, wherein, first tack coat is between described base material and described weathering layer; Described second protective comprises second tack coat, electric insulation layer, the 3rd tack coat and adhesive linkage; wherein: second tack coat combines with described base material; one side surface of electric insulation layer combines with second tack coat; and the 3rd tack coat combines with the opposite side surface of electric insulation layer, and adhesive linkage combines with the 3rd tack coat.
The thickness of base material described in the utility model is 10-20 μ m, and this base material is the base material that PETG is made.
The thickness of weathering layer described in the utility model is 10-30 μ m, and this weathering layer is the weathering layer that Kynoar is made.
First, second, third tack coat described in the utility model is the polyurethane adhesive layer.
The thickness of electric insulation layer described in the utility model is 50-300 μ m, and this electric insulation layer is a biaxially oriented film.
The thickness of adhesive linkage described in the utility model is 50-100 μ m, and this adhesive linkage is a hot melt adhesive layer.
The technical scheme that the utility model provides not only has desirable water vapor barrier property and weatherability, and can play excellent electric insulation effect by the electric insulation layer of setting up.
Description of drawings
Accompanying drawing is a specific embodiment structure chart of the present utility model.
Embodiment
Embodiment 1:
Ask for an interview accompanying drawing, fill the post of by PETG and thickness be that the surface of a side of the mat of the 15 μ m base material 1 that plays the water vapor rejection effect is that upper surface shown in the drawings is in conjunction with first protective 2, and at opposite side surface combination second protective 3 of base material 1, first protective 2 comprises first tack coat 21 and weathering layer 22, wherein: the thickness of weathering layer 22 is 30 μ m, weathering layer 22 is polyvinylidene fluoride (PVDF), and first tack coat 21 is between weathering layer 22 and base material 1; Aforesaid second protective 3 comprises second, third tack coat 31,33, electric insulation layer 32 and adhesive linkage 34; second tack coat 31 between a side surface of the opposite side of base material 1 surface and electric insulation layer 32, and the 3rd tack coat 33 is surperficial at the opposite side of electric insulation layer 32 and a side surface of adhesive linkage 34 between.The thickness of electric insulation layer 32 is 60 μ m, fills the post of electric insulation layer 32 by biaxially oriented film, and the thickness of adhesive linkage 34 is 95 μ m, and adhesive linkage 34 is a hot melt adhesive layer, and hot melt adhesive layer is ethylene-vinyl acetate copolymer layer (EVA).Aforesaid first, second, third tack coat 21,31,33 is polyurethane adhesive, and aforesaid base material 1 preferred the employing by silica or aluminium oxide carried out characterize and PETG (PET) film that have good antistatic property.
Embodiment 2:
Only the thickness with base material 1 changes 19 μ m into, changes the thickness of weathering layer 22, electric insulation layer 32 and adhesive linkage 34 into 12 μ m, 280 μ m and 60 μ m respectively, and all the other are all with the description to embodiment 1.
Embodiment 3:
Only the thickness with base material 1, weathering layer 22, electric insulation layer 32 and adhesive linkage 34 changes 10 μ m, 20 μ m, 220 μ m and 75 μ m respectively into, and all the other are all with the description to embodiment 1.
Claims (6)
1. insulating back panel of solar photovoltaic cell, comprise base material (1), be incorporated into base material (1) a side surface first protective (2) and be incorporated into second protective (3) on the opposite side surface of base material (1), it is characterized in that: described first protective (2) comprises first tack coat (21) and weathering layer (22), wherein, first tack coat (21) is positioned between described base material (1) and the described weathering layer (22); Described second protective (3) comprises second tack coat (31), electric insulation layer (32), the 3rd tack coat (33) and adhesive linkage (34); wherein: second tack coat (31) combines with described base material (1); one side surface of electric insulation layer (32) combines with second tack coat (31); and the 3rd tack coat (33) combines with the opposite side surface of electric insulation layer (32), and adhesive linkage (34) combines with the 3rd tack coat (33).
2. insulating back panel of solar photovoltaic cell according to claim 1, the thickness that it is characterized in that described base material are 10-20 μ m, the base material that this base material (1) is made for PETG.
3. insulating back panel of solar photovoltaic cell according to claim 1, the thickness that it is characterized in that described weathering layer (22) are 10-30 μ m, and this weathering layer is the weathering layer that Kynoar is made.
4. insulating back panel of solar photovoltaic cell according to claim 1 is characterized in that described first, second, third tack coat (21,31,33) is the polyurethane adhesive layer.
5. insulating back panel of solar photovoltaic cell according to claim 1, the thickness that it is characterized in that described electric insulation layer (32) are 50-300 μ m, and this electric insulation layer (32) is a biaxially oriented film.
6. insulating back panel of solar photovoltaic cell according to claim 1, the thickness that it is characterized in that described adhesive linkage (34) are 50-100 μ m, and this adhesive linkage (34) is a hot melt adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920049398 CN201523014U (en) | 2009-10-23 | 2009-10-23 | Insulating back plate of solar energy photovoltaic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920049398 CN201523014U (en) | 2009-10-23 | 2009-10-23 | Insulating back plate of solar energy photovoltaic battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201523014U true CN201523014U (en) | 2010-07-07 |
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ID=42509190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920049398 Expired - Fee Related CN201523014U (en) | 2009-10-23 | 2009-10-23 | Insulating back plate of solar energy photovoltaic battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201523014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992572A (en) * | 2010-09-02 | 2011-03-30 | 常熟市冠日新材料有限公司 | Insulating back plate for solar photovoltaic component |
| CN102157591A (en) * | 2011-01-11 | 2011-08-17 | 山东东岳高分子材料有限公司 | Back panel of solar cell and preparation method thereof |
-
2009
- 2009-10-23 CN CN 200920049398 patent/CN201523014U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992572A (en) * | 2010-09-02 | 2011-03-30 | 常熟市冠日新材料有限公司 | Insulating back plate for solar photovoltaic component |
| CN102157591A (en) * | 2011-01-11 | 2011-08-17 | 山东东岳高分子材料有限公司 | Back panel of solar cell and preparation method thereof |
| CN102157591B (en) * | 2011-01-11 | 2012-09-19 | 山东东岳高分子材料有限公司 | Back panel of solar cell and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20161023 |