CN104518042A - Solar cell backboard - Google Patents
Solar cell backboard Download PDFInfo
- Publication number
- CN104518042A CN104518042A CN201410787035.4A CN201410787035A CN104518042A CN 104518042 A CN104518042 A CN 104518042A CN 201410787035 A CN201410787035 A CN 201410787035A CN 104518042 A CN104518042 A CN 104518042A
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- China
- Prior art keywords
- protective layer
- solar cell
- layer
- copolymer
- cell backboard
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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
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Abstract
The invention discloses a solar cell backboard. Two surfaces of a base layer are covered with an upper supporting layer and a lower supporting layer. The upper supporting layer is covered with an upper protection layer. The lower supporting layer is covered with a lower protection layer. The solar cell backboard is light and high in mechanical strength and meets high loading requirement.
Description
Technical field
The present invention relates to crystal silicon photovoltaic cell technology, be specifically related to a kind of solar cell backboard.
Background technology
At present, conventional crystal silicon battery assembly is followed successively by toughened glass, EVA, cell piece, EVA, backboard from top to bottom.Wherein, backboard is the back side for assembly, play insulation, weather-proof, intercept the effect of steam.Toughened glass is used for before assembly, has supporting component, printing opacity, antireflective printing opacity, blocks water, choke and etch-proof effect.For strengthening the mechanical load of assembly, aluminum alloy frame can be used at module edge, a set of conventional crystal silicon battery assembly (250W) weight is about 18kg, wherein glass and aluminium frame weight are about 15.3kg, account for 84% of lightweight packages, thickness and the alleviating of weight of battery component dorsulum are also absolutely necessary, and general components, can not practical requirement in the projects such as the more weak roof of weight capacity.Trend towards lightening for the production of crystal silicon battery assembly at present.
Summary of the invention
Goal of the invention: the problem produced for prior art, the invention provides the solar cell backboard of a kind of lightweight, high mechanical properties, can meet high load demand.
Technical scheme: a kind of solar cell backboard, comprises up-protective layer, upper supporting layer, basic unit, lower support layer, lower protective layer, and five layers are superimposed successively, and two surfaces of described basic unit are coated with supporting layer and lower support layer respectively; Up-protective layer is coated with outside described upper supporting layer; Lower protective layer is coated with outside described lower support layer.
Particularly, described up-protective layer is a kind of protective layer made in fluorine film, polyester film, polyolefin film, fluorine coating.
Particularly, described lower protective layer is that one in fluorine film, polyester film, fluorine coating is made.
Particularly, described upper supporting layer and lower support layer are that glass fibre is made.
Particularly, described basic unit is that high molecular foam material is made.
Particularly, described high molecular foam material volume density is 20g/L ~ 200g/L.
Particularly, described high molecular foam material is ethene, one in propylene, ethylene-propylene copolymer, ethene-butene-1 copolymer, ethene-1-hexene copolymer, ethylene-l-octane copolymer, ethylene-vinyl acetate copolymer, ethene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer and ethene-copolymer-maleic anhydride makes.
Particularly, the thickness of described up-protective layer and lower protective layer is 1 μm ~ 100um; The thickness of described upper supporting layer and lower support layer is 0.1mm ~ 2mm; The thickness of described basic unit is 5mm ~ 30mm.
Beneficial effect: compared with prior art, apply the present invention to the back side of solar module, front glass sheet and aluminium frame can be saved, the weight of assembly (about 250W) can be reduced to about 7kg, it is the solar cell backboard of a kind of lightweight, high mechanical properties, can high load demand be met, there is the excellent characteristic such as insulation, noise-proofing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
As shown in Figure 1; a kind of solar cell backboard; comprise up-protective layer 1, upper supporting layer 2, basic unit 3, lower support layer 4, lower protective layer 5, superimposed successively from top to bottom, superimposed order is up-protective layer 1, upper supporting layer 2, basic unit 3, lower support layer 4, lower protective layer 5.
Embodiment 1
Up-protective layer 1 and up-protective layer 2 are all fluorine film, are made up of one or more in polytetrafluoroethylene, perfluor (ethylene, propylene) copolymer, poly-perfluoroalkoxy resin, polytrifluorochloroethylene, ethene one chlorotrifluoroethylene, Ethylene/tetrafluoroethylene, Kynoar and polyvinyl fluoride.Further advantageously, the one in polyvinyl fluoride, ethene one chlorotrifluoroethylene, Ethylene/tetrafluoroethylene, Kynoar is used to make; The thickness of fluorine film is 10 μm ~ 50 μm, most preferably is 15 μm ~ 25 μm.There is the useful life that extremely excellent intensity, weatherability, water resistance etc. can extend cell piece backboard.
Upper supporting layer 2 and lower support layer 4 are made for glass fibre, and thickness is 0.1mm ~ 2mm.
Basic unit 3 is high molecular foam material, and this material is made up of one or more of ethene, propylene, ethylene-propylene copolymer, ethene-butene-1 copolymer, ethene-1-hexene copolymer, ethylene-l-octane copolymer, ethylene-vinyl acetate copolymer, ethene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer and ethene-copolymer-maleic anhydride; The thickness of basic unit 3 is 2mm ~ 40mm, and volume density is 10g/L ~ 200g/L, most preferably is 5mm ~ 30mm, and volume density is 20g/L ~ 100g/L.
Containing multiple CAB structure in basic unit 3, these CAB structures around and coated void space, improve the mechanical strength of cell piece backboard.
Embodiment 2
Remainder is identical with embodiment 1, and when difference is up-protective layer 1 and lower protective layer 2 for polyester film, thickness is 20 μm ~ 100 μm, most preferably is 38 μm ~ 50 μm; There is excellent bonding force, mechanical strength, ageing resistance.
Embodiment 3
Remainder is identical with embodiment 1, when difference is up-protective layer 1 and lower protective layer 2 for fluorine coating, by tetrafluoroethene, Kynoar, polyvinyl fluoride, fluoroolefins-vinyl ether co-polymer one or more make; The thickness of fluorine coating is 1 μm ~ 50 μm, most preferably is 1-30 μm.
Embodiment 4
Remainder is identical with embodiment 1, and difference is that up-protective layer 1 is for polyolefin film, is made up of one or more of the alpha-olefins such as ethene, propylene, 1-butylene, 1-amylene, 1-hexene, 1-octene, 4-methyl-1-pentene and some cycloolefin; Or be made up of polyethylene, polypropylene, ethene-vinyl acetate.Thickness is 20 μm ~ 100 μm, most preferably is 30 μm ~ 60 μm; Lower protective layer 2 is made for any one that can be in fluorine film, polyester film, fluorine coating.
Up-protective layer 1 described above has 4 kinds of materials, and lower protective layer 2 has material in 3, can combination in any between two, can form embodiments of the invention.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a solar cell backboard, it is characterized in that: comprise up-protective layer (1), upper supporting layer (2), basic unit (3), lower support layer (4), lower protective layer (5), five layers are superimposed successively, two surfaces of described basic unit (3) are coated with respectively supporting layer (2) and lower support layer (4); Up-protective layer (1) is coated with outside described upper supporting layer (2); Lower protective layer (5) is coated with outside described lower support layer (4).
2. a kind of solar cell backboard according to claim 1, is characterized in that: described up-protective layer (1) is a kind of protective layer made in fluorine film, polyester film, polyolefin film, fluorine coating.
3. a kind of solar cell backboard according to claim 1, is characterized in that: described lower protective layer (5) is a kind of protective layer made in fluorine film, polyester film, fluorine coating.
4. a kind of solar cell backboard according to claim 1, is characterized in that: the supporting layer (4) that described upper supporting layer (2) and lower support layer (4) are made for glass fibre.
5. a kind of solar cell backboard according to claim 1, is characterized in that: the basic unit (3) that described basic unit (3) makes for high molecular foam material.
6. a kind of solar cell backboard according to claim 4, is characterized in that: described high molecular foam material volume density is 20g/L ~ 200g/L.
7. a kind of solar cell backboard according to claim 4, is characterized in that: described high molecular foam material is a kind of high molecular foam material made in ethene, propylene, ethylene-propylene copolymer, ethene-butene-1 copolymer, ethene-1-hexene copolymer, ethylene-l-octane copolymer, ethylene-vinyl acetate copolymer, ethene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer and ethene-copolymer-maleic anhydride.
8. a kind of solar cell backboard according to claim 1, is characterized in that: the thickness of described up-protective layer (1) and lower protective layer is 1 μm ~ 100um; The thickness of described upper supporting layer (2) and lower support layer (4) is 0.1mm ~ 2mm; The thickness of described basic unit (3) is 5mm ~ 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787035.4A CN104518042A (en) | 2014-12-17 | 2014-12-17 | Solar cell backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787035.4A CN104518042A (en) | 2014-12-17 | 2014-12-17 | Solar cell backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104518042A true CN104518042A (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410787035.4A Pending CN104518042A (en) | 2014-12-17 | 2014-12-17 | Solar cell backboard |
Country Status (1)
| Country | Link |
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| CN (1) | CN104518042A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328745A (en) * | 2016-08-27 | 2017-01-11 | 无锡中洁能源技术有限公司 | Solar back plate with high mechanical strength |
| CN107348590A (en) * | 2017-06-30 | 2017-11-17 | 珠海赛仑运动器材有限公司 | A kind of solar energy charging type wears apparatus |
| CN109539105A (en) * | 2018-10-22 | 2019-03-29 | 扬州新思路光电科技有限公司 | LED solar street light |
| CN109968768A (en) * | 2017-12-28 | 2019-07-05 | 宁波长阳科技股份有限公司 | A kind of insulating heat-conductive solar cell backboard |
| CN112582490A (en) * | 2020-12-17 | 2021-03-30 | 苏州中来光伏新材股份有限公司 | Photovoltaic backboard resisting mechanical impact, preparation process and photovoltaic module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501514A (en) * | 2011-11-30 | 2012-06-20 | 宁波长阳科技有限公司 | Solar cell rear panel and manufacturing method thereof |
| CN103928552A (en) * | 2013-01-10 | 2014-07-16 | 中天光伏材料有限公司 | Coating type FPC-structure solar cell backboard |
| CN104124300A (en) * | 2013-04-26 | 2014-10-29 | 比亚迪股份有限公司 | Solar cell backplane and solar cell module |
| CN204315599U (en) * | 2014-12-17 | 2015-05-06 | 无锡德鑫太阳能电力有限公司 | A kind of solar cell backboard |
-
2014
- 2014-12-17 CN CN201410787035.4A patent/CN104518042A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501514A (en) * | 2011-11-30 | 2012-06-20 | 宁波长阳科技有限公司 | Solar cell rear panel and manufacturing method thereof |
| CN103928552A (en) * | 2013-01-10 | 2014-07-16 | 中天光伏材料有限公司 | Coating type FPC-structure solar cell backboard |
| CN104124300A (en) * | 2013-04-26 | 2014-10-29 | 比亚迪股份有限公司 | Solar cell backplane and solar cell module |
| CN204315599U (en) * | 2014-12-17 | 2015-05-06 | 无锡德鑫太阳能电力有限公司 | A kind of solar cell backboard |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328745A (en) * | 2016-08-27 | 2017-01-11 | 无锡中洁能源技术有限公司 | Solar back plate with high mechanical strength |
| CN107348590A (en) * | 2017-06-30 | 2017-11-17 | 珠海赛仑运动器材有限公司 | A kind of solar energy charging type wears apparatus |
| CN109968768A (en) * | 2017-12-28 | 2019-07-05 | 宁波长阳科技股份有限公司 | A kind of insulating heat-conductive solar cell backboard |
| CN109968768B (en) * | 2017-12-28 | 2021-04-13 | 宁波长阳科技股份有限公司 | Insulating heat conduction solar cell backplate |
| CN109539105A (en) * | 2018-10-22 | 2019-03-29 | 扬州新思路光电科技有限公司 | LED solar street light |
| CN112582490A (en) * | 2020-12-17 | 2021-03-30 | 苏州中来光伏新材股份有限公司 | Photovoltaic backboard resisting mechanical impact, preparation process and photovoltaic module |
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Application publication date: 20150415 |
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| RJ01 | Rejection of invention patent application after publication |