CN205264733U - A height solar cell back sheet that blocks water for among 1500V photovoltaic module - Google Patents
A height solar cell back sheet that blocks water for among 1500V photovoltaic module Download PDFInfo
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- CN205264733U CN205264733U CN201520923522.9U CN201520923522U CN205264733U CN 205264733 U CN205264733 U CN 205264733U CN 201520923522 U CN201520923522 U CN 201520923522U CN 205264733 U CN205264733 U CN 205264733U
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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 utility model discloses a height solar cell back sheet that blocks water for among 1500V photovoltaic module, solar cell back sheet thickness are 200 -400 mu m, are provided with the EVA tie coat to superposeing in proper order down on the follow, gluing agent layer A, middle substrate layer, gluing agent layer B and the resistant layer of waiting. The utility model discloses a backplate reduces the power generation system cost in can be used to the resistant high -pressure assembly of 1500V, improves system's generating efficiency. The test of this backplate CTI can reach 600V, shortens the creepage distance on subassembly both sides, can make the former material cost of production 1500V subassembly reduce about 15%. Is this backplate steam transmissivity about 0.8gm2 simultaneously D can satisfy the long -term requirement of using at humid area, and reduction snail line etc. Are the probability of phenomenon appearance harmfully.
Description
Technical field:
The utility model relates to technical field of solar batteries, relates in particular to a kind of height for 1500V photovoltaic moduleSolar cell backboard blocks water.
Background technology:
Solar cell backboard is the important component part of photovoltaic module, and it is positioned at the outermost of photovoltaic module, plays guarantorProtect, insulate, intercept the effects such as steam, therefore the quality of solar cell backboard performance directly affects the use of solar cellLife-span and conversion ratio.
At present, solar cell backboard structure mostly is fluorine material layer/pet layer/EVA tack coat, and layers of material passes through glueGlutinous agent is bonding, and gross thickness is 250-400 μ m. Office's electric discharge of this traditional structure backboard is pressed and can only be reached 1000-1100V, cannotMeet the instructions for use of 1500V photovoltaic module; And moisture-vapor transmission is higher, is about 1.5-2.5g/m2D, is not suitable forThe area that moisture is larger, because water vapor permeable is understood life-span and the generating efficiency that affect cell piece in sealant, at present a lot of groupsThe bad phenomenon such as the snail line, PID, delamination that part occurs are also how poor relevant with the water preventing ability of backboard.
Utility model content:
In order to address the above problem, the utility model provides a kind of CTI can reach 600V, high water resistant, high weather-proof skillArt scheme:
For a high water resistant solar cell backboard for 1500V photovoltaic module, solar cell backboard thickness is200-400 μ m, stack is provided with EVA tack coat successively from top to bottom, adhesive layer A, middle substrate layer, adhesive layer B andWeathering layer, EVA adhesive layer thickness 50-120 μ m, adhesive layer A and adhesive layer B are epoxy resin adhesive, polyurethane gluingOne or both combinations in agent, acrylate adhesive, organic silicon resin adhesive, its thickness is 5-20 μ m, middle base materialLayer comprises weather-proof PET base material one deck, two layers of weather-proof PET base materials and adhesive phase, and gross thickness is 100-300 μ m, and weathering layer isPolyfluoroethylene resin, polyvinylidene fluoride resin, polyflon, ethylene-tetrafluoroethylene copolymer, polytrifluorochloroethylene treeOne in fat, its thickness is 20-40 μ m.
As preferably, weather-proof PET base material one deck and weather-proof PET base material two layer thicknesses are 50-150 μ m, PET base material one deck withPET base material two layer thicknesses are identical or different.
As preferably, adhesive phase is epoxy resin adhesive, adhesive for polyurethane, acrylate adhesive, organosiliconOne or both combinations in resin adhesive, its thickness is 3-15 μ m.
The beneficial effects of the utility model are:
Backboard of the present utility model can be used in the high pressure resistant assembly of 1500V, reduces electricity generation system cost, the generating of raising systemEfficiency. This backboard CTI test can reach 600V, shortens the creep age distance on assembly both sides, can make the raw material of producing 1500V assembly becomeThis reduces by 15% left and right. This backboard water vapor transmittance is about 0.8g/m simultaneously2D, can meet long-term the wanting of using in humid areaAsk, reduce the probability that the bad phenomenon such as snail line occur.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is substrate layer structural representation in the middle of the utility model.
Detailed description of the invention:
For making utility model object of the present utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing pairEmbodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of high water resistant solar cell backboard for 1500V photovoltaic module, solar battery backPlate thickness is 200-400 μ m, and stack is provided with EVA tack coat 1, adhesive layer A2, middle substrate layer 3, glue successively from top to bottomAdhensive layer B4 and weathering layer 5, EVA tack coat 1 thickness 50-120 μ m, adhesive layer A2 and adhesive layer B4 are epoxy resinOne or both combinations in adhesive, adhesive for polyurethane, acrylate adhesive, organic silicon resin adhesive, its thicknessFor 5-20 μ m, as shown in Figure 2, middle substrate layer 3 comprises weather-proof PET base material one deck 3a, two layers of 3b and bonding of weather-proof PET base materialAgent layer 3c, gross thickness is 100-300 μ m, weathering layer 5 be polyfluoroethylene resin, polyvinylidene fluoride resin, polyflon,One in ethylene-tetrafluoroethylene copolymer, daiflon, its thickness is 20-40 μ m.
EVA tack coat 1 wherein consist of matrix resin 50-90 part, anti ultraviolet agent 0.1-5 part, antioxidant 0.1-5Part, reflective filler 5-30 part. Matrix resin is type low density polyethylene resin, high density polyethylene (HDPE), low density polyethylene (LDPE), superHigh molecular weight polyethylene, polypropylene, poly 1-butene, poly(4-methyl-1-pentene), polyisobutene, ethylene-propylene copolymer, ethene-A kind of or the combination of at least two kinds in butylene copolymer, ethylene-octene copolymer, ethylene-vinyl acetate copolymer. UvioresistantAgent is ESCALOL 567,2,2 '-tetramethylene two (3,1-benzoxazine-4-ketone), 2-hydroxyl-4-firstOxygen base-2 '-carboxyl benzophenone, 2,2 '-dihydroxy-4,4 '-dimethoxy-benzophenone, 2,2 '-dihydroxy-4,4 '-bis-Methoxy benzophenone, 2-hydroxyl-5-chlorobenzophenone, 2-(2 '-hydroxyl-5 '-tert-butyl-phenyl) BTATriazole, 2-(2 '-hydroxyl-5 '-aminophenyl) BTA, double acid double phenol A ester, 2-(2-hydroxyl-3,5-bis-Tertiary pentyl phenyl) BTA, 2,2 '-(Isosorbide-5-Nitrae-phenylene) two-4H-3,1-benzoxazine-4-ketone, 2-(2 '-Hydroxyl-3 ', 5 '-3,5-dimethylphenyl) BTA, 2-(2 '-methyl-4 '-hydroxy phenyl) BTA, two-(one or more combinations in 2-methoxyl group-4-hydroxyl-5-Benzoylbenzene. Antioxidant is tricresyl phosphite (2,4-, bis-2-methyl-2-phenylpropanesBase) ester, octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl) propionic ester, pentaerythrite four (two-T-butylhydroxy hydrogenation meatCinnamic acid) ester, 4-[(4,6-bis-pungent sulfenyl-1,3,5-triazines-2-yl) amino]-2,6-DI-tert-butylphenol compounds, N, N'-(propane-1,3-bis-bases) two (3-(3,5-couple-tert-butyl-hydroxy phenyl) propionamides), distearyl pentaerythrityl diphosphite, threeThe combination of one or more in (2,4-tert-butyl-phenyl) phosphite ester. Reflective filler is aluminium oxide, zinc oxide, titanium dioxideA kind of or at least two kinds of combinations in titanium, magnesia, bead, lithopone, talcum powder.
In this simultaneously, the PET base material one deck 3a in middle substrate layer 3 and two layers of 3b thickness of weather-proof PET base material are 50-150 μM, two layers of 3b thickness of PET base material one deck 3a and PET base material are identical or different. Adhesive phase 3c is epoxy resin adhesive, poly-ammoniaOne or both combinations in ester adhesive, acrylate adhesive, organic silicon resin adhesive, its thickness is 3-15 μ m.
Backboard of the present utility model can be used in the high pressure resistant assembly of 1500V, reduces electricity generation system cost, the generating of raising systemEfficiency. This backboard CTI test can reach 600V, shortens the creep age distance on assembly both sides, can make the raw material of producing 1500V assembly becomeThis reduces by 15% left and right. This backboard water vapor transmittance is about 0.8g/m simultaneously2D, can meet long-term the wanting of using in humid areaAsk, reduce the probability that the bad phenomenon such as snail line occur.
Embodiment mono-:
For a high water resistant solar cell backboard for 1500V photovoltaic module, its structure is EVA tack coat 1, gluingAgent layer A2, middle substrate layer 3, adhesive layer B4 and weathering layer 5, its thickness is 360 μ m.
EVA tack coat 1 thickness is 60 μ m, and it consists of: 85 parts of ethylene-vinyl acetate copolymers, 2-hydroxyl-4-first0.5 part of oxygen base benzophenone, 2, two (3, the 1-benzoxazine-4-ketone) 0.5 part of 2 '-tetramethylene, distearyl pentaerythrite two1.5 parts of phosphite esters, 10 parts of titanium dioxide, 2.5 parts of talcum powder.
Adhesive layer A2 and adhesive layer B4 are adhesive for polyurethane, and thickness is 10 μ m.
Middle substrate layer 3 thickness are 255 μ m, and wherein two layers of 3b thickness of PET base material one deck 3a and PET base material are identical, are125 μ m, its adhesive layer 3c is adhesive for polyurethane and epoxy adhesive mixture, thickness 5 μ m.
Weathering layer 5 is Kynoar, thickness 25 μ m.
Embodiment bis-:
For a high water resistant solar cell backboard for 1500V photovoltaic module, its structure is EVA tack coat 1, gluingAgent layer A2, middle substrate layer 3, adhesive layer B4 and weathering layer 5, its thickness is 360 μ m.
EVA tack coat 1 thickness is 80 μ m, and it consists of: type low density polyethylene resin and ethylene-octene copolymer80 parts, mixture, two-(3 parts of 2-methoxyl group-4-hydroxyl-5-Benzoylbenzenes, three (2,4-tert-butyl-phenyl) phosphite ester 2Part, N, 2 parts of N'-(propane-1,3-bis-bases) two (3-(3,5-couple-tert-butyl-hydroxy phenyl) propionamides), titanium dioxide 10Part, 3 parts, aluminium oxide.
Adhesive layer A2 and adhesive layer B4 are adhesive for polyurethane, and adhesive layer thickness is 10 μ m.
Middle substrate layer 3 thickness are 248 μ m, wherein weather-proof PET base material one deck 3a thickness 50 μ m, and two layers of 3b are thick for PET base materialSpend 188 μ m, its adhesive layer 3c is adhesive for polyurethane, adhesive thickness 10 μ m.
Weathering layer 5 is polyvinyl fluoride, thickness 38 μ m.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility modelSystem, as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, all should be considered as falling intoWithin the scope of the rights protection of the utility model patent.
Claims (2)
1. for a high water resistant solar cell backboard for 1500V photovoltaic module, it is characterized in that: described solar cellBack plate thickness is 200-400 μ m, and stack is provided with EVA tack coat, adhesive layer A, middle substrate layer, gluing successively from top to bottomAgent layer B and weathering layer;
Described EVA adhesive layer thickness 50-120 μ m;
Described adhesive layer A and adhesive layer B are epoxy resin adhesive, adhesive for polyurethane, acrylate adhesive, organicOne or both combinations in silicone resin adhesive, its thickness is 5-20 μ m;
In the middle of described, substrate layer comprises weather-proof PET base material one deck, two layers of weather-proof PET base materials and adhesive phase, and gross thickness is100-300μm；
Described weathering layer is polyfluoroethylene resin, polyvinylidene fluoride resin, polyflon, ethylene-tetrafluoroethylene copolymerizationOne in thing, daiflon, its thickness is 20-40 μ m.
2. a kind of high water resistant solar cell backboard for 1500V photovoltaic module according to claim 1, its featureBe: described PET base material one deck and weather-proof PET base material two layer thicknesses are 50-150 μ m, two layers of PET base material one deck and PET base materialsThickness is identical or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923522.9U CN205264733U (en) | 2015-11-19 | 2015-11-19 | A height solar cell back sheet that blocks water for among 1500V photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923522.9U CN205264733U (en) | 2015-11-19 | 2015-11-19 | A height solar cell back sheet that blocks water for among 1500V photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN205264733U true CN205264733U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520923522.9U Withdrawn - After Issue CN205264733U (en) | 2015-11-19 | 2015-11-19 | A height solar cell back sheet that blocks water for among 1500V photovoltaic module |
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| Country | Link |
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| CN (1) | CN205264733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336806A (en) * | 2015-11-19 | 2016-02-17 | 中天光伏材料有限公司 | High water resistance solar cell backboard used in 1500V photovoltaic module |
-
2015
- 2015-11-19 CN CN201520923522.9U patent/CN205264733U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336806A (en) * | 2015-11-19 | 2016-02-17 | 中天光伏材料有限公司 | High water resistance solar cell backboard used in 1500V photovoltaic module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160525 Effective date of abandoning: 20170419 |