CN204303833U - Solar cell backboard - Google Patents
Solar cell backboard Download PDFInfo
- Publication number
- CN204303833U CN204303833U CN201420856233.7U CN201420856233U CN204303833U CN 204303833 U CN204303833 U CN 204303833U CN 201420856233 U CN201420856233 U CN 201420856233U CN 204303833 U CN204303833 U CN 204303833U
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- CN
- China
- Prior art keywords
- rete
- solar cell
- cell backboard
- film layer
- pet film
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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.)
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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
A kind of solar cell backboard, comprise the transparent weatherability PC rete, PET film layer, tack coat and the synergy rete for the ultraviolet light that absorbs 10-400nm that set gradually from top to bottom, transparent weatherability PC rete and PET film layer coextrusion mold, the two sides of tack coat is closed with PET film layer and synergistic film laminating respectively.Solar cell backboard of the present utility model, by arranging the synergy rete of the ultraviolet light for absorbing 10-400nm, the light wave that the existing cell piece of energy conversion cannot transform, widen solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved, in addition, the transparent weatherability PC rete that solar cell backboard of the present utility model utilizes price lower replaces expensive fluorine-containing rete, reduce the cost of solar cell backboard, thus reduce too can the cost of battery.
Description
Technical field
The utility model relates to technical field of solar cells, particularly a kind of solar cell backboard.
Background technology
Day by day poor along with traditional energy, the whole world more and more becomes the focus of worldwide attention to the development and utilization of novel energy, you can have inexhaustible, nexhaustible, pollution-free, non-harmful feature and enjoy global concern as novel energy very much, and realize the industrialization of energy conversion.Current commercialization crystal silicon solar energy battery dominant absorption utilizes the visible ray of 400-700nm, light for the ultra-violet bands lower than 400nm does not absorb substantially, the energy of part sunshine is caused not to be used effectively, this have impact on the efficiency of solar cell to a certain extent, make the efficiency of Current commercial crystal silicon solar energy battery substantially be in 14%-17%, under the level of production of existing commercialization crystalline silicon, difficulty has and improves greatly.By the light wave that the existing cell piece of trans-utilization cannot transform, widen solar spectrum absorption region, better can excavate the potential of crystalline silicon battery plate, and produce larger benefit by increasing very little input, to the development of photovoltaic industry, there is far-reaching influence.
The photoelectric transformation efficiency of solar cell backboard on solar cell has impact, and the photoelectric transformation efficiency of the solar cell that solar cell backboard of the prior art makes is low.
In addition, the weathering layer of solar cell backboard of the prior art is made up of fluorine resin, expensive, thus causes the cost of solar cell higher.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of photoelectric transformation efficiency that can strengthen solar cell, the solar cell backboard that simultaneously can reduce costs.
The utility model provides a kind of solar cell backboard, comprise the transparent weatherability PC rete, PET film layer, tack coat and the synergy rete for the ultraviolet light that absorbs 10-400nm that set gradually from top to bottom, described transparent weatherability PC rete and PET film layer coextrusion mold, the two sides of described tack coat is closed with described PET film layer and described synergistic film laminating respectively.
Further, the thickness of described transparent weatherability PC rete is 30-50um.
Further, the thickness of described PET film layer is 100-400um.
Further, the thickness of described tack coat is 5-30um.
Further, the thickness of described synergy rete is 15-150um.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Solar cell backboard of the present utility model, by arranging the synergy rete of the ultraviolet light for absorbing 10-400nm, the light wave that the existing cell piece of energy conversion cannot transform, widen solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved, in addition, the transparent weatherability PC rete that solar cell backboard of the present utility model utilizes price lower replaces expensive fluorine-containing rete, reduce the cost of solar cell backboard, thus reduce too can the cost of battery.
Accompanying drawing explanation
Fig. 1 is the structural representation of the solar cell backboard of the utility model embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with detailed description of the invention also with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these describe just exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
Refer to Fig. 1, the solar cell backboard that the utility model embodiment provides, comprise the transparent weatherability PC rete 1, PET film layer 2, tack coat 3 and the synergy rete 4 that set gradually from top to bottom.Wherein, transparent weatherability PC rete 1 and PET film layer 2 coextrusion mold, namely transparent weatherability PC rete 1 is the micro-nano structures formed by coextrusion mold with PET film layer 2, enhance the caking property between transparent weatherability PC rete 1 and PET film layer 2, weatherability and the barrier property to steam and oxygen, ensure that the service life of solar panel, and the thickness of solar cell backboard can be reduced.Fit with PET film layer 2 and synergy rete 4 respectively in the two sides of tack coat 3.Synergy rete 4 is for absorbing the ultraviolet light of 10-400nm, and the light wave that the existing cell piece of energy conversion cannot transform, widens solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved.
Transparent weatherability PC film 1 of the present utility model, by weight portion be the Merlon of 90-110 part, the ultraviolet absorber of 0.1-10 part, 0.1-10 part ultraviolet light screener, the light stabilizer of 0.1-1 part, the modify polymeric resins of 1-10 part form; Wherein, ultraviolet absorber is benzophenone class and BTA, is selected from the one in UV-234, UV-326 or UV-1577; Ultraviolet light screener is inorganic nano ultraviolet light screener, is selected from TiO2 or ZnO; Light stabilizer is hindered amine as light stabilizer, is selected from the one in 944,977 or 622.Select the PC wearing layer 1 of above formula; ensure that solar cell is had good weatherability, ageing-resistant, resistance to rainwater, UV resistant, high-low temperature resistant, the corrosion of resistance to solute and insulating properties etc. by rear panel compound film; various excellent performance, has long-acting lasting defencive function to solar module.
Particularly, in the present embodiment, the film that synergy rete 4 is is matrix resin with vistanex and adhesion resin, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
The film that synergy rete 4 is is matrix resin with LLDPE and ethylene-vinyl acetate copolymer in other embodiments, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 4 is is matrix resin with high density polyethylene (HDPE), ethylene-propylene copolymer and ethylene-vinyl acetate copolymer, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In other embodiments, the film that synergy rete 4 is is matrix resin with low density polyethylene (LDPE), polypropylene and ethylene-vinyl acetate copolymer, and synergy rete 4 also adds fluorescer, can absorb the ultraviolet light of 10-400nm.
In the present embodiment, the thickness of transparent weatherability PC rete 1 is 30-50um, and the light transmittance of the transparent weatherability PC rete 1 in this thickness range is good, and the photoelectric conversion rate of the solar cell of making is high.For making the utility model reach best result of use, the thickness of transparent weatherability PC rete 1 is 40um.
In the present embodiment, the thickness of PET film layer 2 is 100-400um, and PET film layer 2 light transmission efficiency in this thickness range is good, and the photoelectric transformation efficiency of the solar cell of making is high.For making the utility model reach best result of use, the thickness of PET film layer 2 is 250um.
In the present embodiment, the thickness of tack coat 3 is 5-30um, and tack coat 3 translucent effect in this thickness range is good, and the photoelectric transformation efficiency of the solar cell of making is high.For making the utility model reach best result of use, the thickness of tack coat 3 is 20um.
In the present embodiment, the thickness of synergy rete 4 is 15-150um, and synergy rete 4 light transmission efficiency in this thickness range is good, and the photoelectric transformation efficiency of the solar cell of making is high.For making the utility model reach best result of use, the thickness of synergy rete 4 is 75um.
The beneficial effects of the utility model are: solar cell backboard of the present utility model, by arranging the synergy rete 4 of the ultraviolet light for absorbing 10-400nm, the light wave that the existing cell piece of energy conversion cannot transform, widen solar spectral sorption enhanced scope, the electricity conversion of the solar cell of making is improved, in addition, the transparent weatherability PC rete 1 that solar cell backboard of the present utility model utilizes price lower replaces expensive fluorine-containing rete, reduce the cost of solar cell backboard, thus reduce too can the cost of battery.
The foregoing is only embodiment of the present utility model, not thereby the scope of the claims of the present utility model is limited, all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within scope of the present utility model.
Claims (5)
1. a solar cell backboard, it is characterized in that, comprise set gradually from top to bottom transparent weatherability PC rete (1), PET film layer (2), tack coat (3) and the synergy rete (4) for the ultraviolet light that absorbs 10-400nm, described transparent weatherability PC rete (1) and PET film layer (2) coextrusion mold, fit with described PET film layer (2) and described synergy rete (4) respectively in the two sides of described tack coat (3).
2. solar cell backboard according to claim 1, is characterized in that: the thickness of described transparent weatherability PC rete (1) is 30-50um.
3. solar cell backboard according to claim 1, is characterized in that: the thickness of described PET film layer (2) is 100-400um.
4. solar cell backboard according to claim 1, is characterized in that: the thickness of described tack coat (3) is 5-30um.
5. solar cell backboard according to claim 1, is characterized in that: the thickness of described synergy rete (4) is 15-150um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420856233.7U CN204303833U (en) | 2014-12-30 | 2014-12-30 | Solar cell backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420856233.7U CN204303833U (en) | 2014-12-30 | 2014-12-30 | Solar cell backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303833U true CN204303833U (en) | 2015-04-29 |
Family
ID=53109351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420856233.7U Active CN204303833U (en) | 2014-12-30 | 2014-12-30 | Solar cell backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204303833U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882500A (en) * | 2015-05-15 | 2015-09-02 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN104882502A (en) * | 2015-05-15 | 2015-09-02 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN110938387A (en) * | 2018-09-25 | 2020-03-31 | 苏州维兰德新材料有限公司 | High-weather-resistance polyolefin composite film for solar cell back plate and preparation method thereof |
-
2014
- 2014-12-30 CN CN201420856233.7U patent/CN204303833U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882500A (en) * | 2015-05-15 | 2015-09-02 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN104882502A (en) * | 2015-05-15 | 2015-09-02 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN110938387A (en) * | 2018-09-25 | 2020-03-31 | 苏州维兰德新材料有限公司 | High-weather-resistance polyolefin composite film for solar cell back plate and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |