CN201629341U - Solar battery back panel - Google Patents
Solar battery back panel Download PDFInfo
- Publication number
- CN201629341U CN201629341U CN 201020102530 CN201020102530U CN201629341U CN 201629341 U CN201629341 U CN 201629341U CN 201020102530 CN201020102530 CN 201020102530 CN 201020102530 U CN201020102530 U CN 201020102530U CN 201629341 U CN201629341 U CN 201629341U
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- Prior art keywords
- layer
- solar cell
- back panel
- transition zone
- solar battery
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- 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
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Abstract
The utility model relates to a solar battery back panel, which comprises a first weather-proof layer, a first transitional layer, a structure enhancing layer, a second transitional layer and a second weather-proof layer which are sequentially connected, wherein the first transitional layer and the second transitional layer are both made of adhesive resins. By using copolymers of the adhesive resins, namely ethylene and polar resins as the transitional layers to replace glue, the solar battery back panel leads the layers of the back panel to be connected. As the structure of the solar battery back panel needs no use of glue containing solvents, the solar battery back panel has the advantages of low production cost, short production cycle, novel structure and the like, and has extremely important significance for solar industry.
Description
Technical field
The utility model relates to technical field of solar batteries, particularly a kind of solar cell backboard.
Background technology
Nowadays, solar cell by a large amount of uses in each technical field, relatively the back board structure of solar cell commonly used has TPT structure and TPE structure at present, wherein T refers to the Tedlar film of E.I.Du Pont Company, and composition is polyvinyl fluoride (PVF), and P refers to PETG (PET) film, E refers to ethylene-vinyl acetate resin (EVA) film, therefore, the TPT structure refers to PVF film/PET film/PVF membrane structure, and the TPE structure refers to PVF film/PET film/eva film structure.
Yet, in the prior art, no matter be the TPT structure or the backboard of the three-decker of TPE structure, all be to bond mutually between their three-layer thin-film by suitable glue; Glue can be acrylate glue, epoxy glue (comprising modified epoxy) or polyurethane adhesive, all contains a large amount of solvents.Owing to use glue with each layer bonding, so the production technology of present backboard is all used combination process.So-called combination process is that a film surface in two bonding films of needs evenly is coated with gluing, solvent in the glue is volatilized to form glue-line after falling, two film laminating are formed composite membrane, glue-line is between two films, be to guarantee the intensity of pressing, the backboard after compound need store the regular hour in the baking oven that keeps uniform temperature.In view of the foregoing, the backboard of producing TPT structure or TPE structure not only needs a large amount of solvent that volatilizees, but also has very long shortcoming of production cycle.
The utility model content
In order to overcome the deficiency that above-mentioned prior art exists, the utility model aims to provide a kind of solar cell backboard that does not have glue, reduces production costs, shortens the purpose of production cycle to reach greatly.
A kind of solar cell backboard described in the utility model, described backboard comprise first weathering layer, first transition zone, structure enhancement layer, second transition zone and second weathering layer that connects successively.
In above-mentioned solar cell backboard, the material of described first transition zone and second transition zone is adhesion resin.
In above-mentioned solar cell backboard, the thickness range of described first transition zone and second transition zone is 1～50 μ m.
In above-mentioned solar cell backboard, the material of described first weathering layer and second weathering layer is the fluoro-containing plastic alloy.
In above-mentioned solar cell backboard, the thickness range of described first weathering layer and second weathering layer is 4～40 μ m.
In above-mentioned solar cell backboard, described structure enhancement layer is the PETG layer.
In above-mentioned solar cell backboard, the thickness range of described structure enhancement layer is 40～400 μ m.
Owing to adopted above-mentioned technical solution, the utility model is that the copolymer of ethene and polar resin substitutes glue as transition zone by using adhesion resin, to connect each layer of backboard, because structure of the present utility model does not need to use solvent-laden glue, therefore have advantages such as production cost is low, with short production cycle, novel structure, the solar energy industry is had very important significance.
Description of drawings
Fig. 1 is the structural representation of one of a kind of solar cell backboard preferred embodiment of the utility model;
Fig. 2 is two a structural representation of a kind of solar cell backboard preferred embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
See also Fig. 1, Fig. 2, the utility model, promptly a kind of solar cell backboard, it comprises first weathering layer 1, first transition zone 2, structure enhancement layer 3, second transition zone 4 and second weathering layer 5 that connects successively, wherein:
The material of first transition zone 2 and second transition zone 4 is adhesion resin, be the copolymer of ethene and polar resin, this copolymer at room temperature exists with the form of plastic pellet, this copolymer comprise anhydride modified ethylene-vinyl acetate copolymer, anhydride modified LLDPE, the anhydride modified same methacrylic acid copolymer of high density polyethylene (HDPE), ethene and ethene with acrylic acid and ester class thereof, ethene with along butadiene or along the copolymer of butadiene acid anhydride; The thickness range of first transition zone 2 and second transition zone 4 is 1～50 μ m.
The material of first weathering layer 1 and second weathering layer 5 is the fluoro-containing plastic alloy, be fluoro-containing plastic, pigment, the mixture of other plastics and auxiliary agent, wherein, fluoro-containing plastic be molecular backbone be the vinylidene group (CF2-CH2-), the ETFE group (CH2-CH2-CF2-CF2-), chlorotrifluoroethylene group (CF2-C (F) Cl-), the tetrafluoroethene group (CF2-CF2-) or homopolymers or several group copolymer of a kind of group in the hexafluoropropylene group (CF2-CF (CF2)-), or the copolymer of these fluoro-containing groups and other olefin group, or the mixture of several above-mentioned fluoro-containing plastics; The thickness range of first weathering layer 1 and second weathering layer 5 is 4～40 μ m.
As shown in Figure 1, in one of preferred embodiment of the present utility model, first weathering layer 1 and second weathering layer 5 are for being the fluoro-containing plastic alloy of Main Ingredients and Appearance with the polyvinylidene fluoride alkene plastics, and first weathering layer 1 and second weathering layer, 5 thickness are 40 μ m; Structure enhancement layer 3 is PETGs of biaxial tension, and its thickness is 40 μ m; First transition zone 2 and second transition zone 4 are anhydride modified ethylene-vinyl acetate copolymer, and their thickness is 50 μ m.
As shown in Figure 2, preferred embodiment of the present utility model two in, first weathering layer 1 and second weathering layer 5 are for being the fluoro-containing plastic alloy of main component with the ethylene-tetrafluoroethylene copolymer, the thickness of first weathering layer 1 and second weathering layer 5 is 4 μ m; Structure enhancement layer 3 is PETGs of biaxial tension, and its thickness is 400 μ m; First transition zone 2 and second transition zone 4 are the copolymer of ethene with acrylates, and their thickness is 1 μ m.
In sum, a kind of ethene and polar resin copolymer of using of the present utility model eliminated glue-line commonly used as the solar cell backboard of transition zone, it is a kind of backboard that does not have glue, have production cost advantage low, with short production cycle, therefore, the solar energy industry is had very important meaning.
Below embodiment has been described in detail the utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (7)
1. a solar cell backboard is characterized in that, described backboard comprises first weathering layer, first transition zone, structure enhancement layer, second transition zone and second weathering layer that connects successively.
2. solar cell backboard according to claim 1 is characterized in that, the material of described first transition zone and second transition zone is adhesion resin.
3. solar cell backboard according to claim 1 and 2 is characterized in that, the thickness range of described first transition zone and second transition zone is 1～50 μ m.
4. solar cell backboard according to claim 1 is characterized in that, the material of described first weathering layer and second weathering layer is the fluoro-containing plastic alloy.
5. according to claim 1 or 4 described solar cell backboards, it is characterized in that the thickness range of described first weathering layer and second weathering layer is 4～40 μ m.
6. solar cell backboard according to claim 1 is characterized in that, described structure enhancement layer is the PETG layer.
7. according to claim 1 or 6 described solar cell backboards, it is characterized in that the thickness range of described structure enhancement layer is 40～400 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020102530 CN201629341U (en) | 2010-01-27 | 2010-01-27 | Solar battery back panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020102530 CN201629341U (en) | 2010-01-27 | 2010-01-27 | Solar battery back panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629341U true CN201629341U (en) | 2010-11-10 |
Family
ID=43060739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020102530 Expired - Fee Related CN201629341U (en) | 2010-01-27 | 2010-01-27 | Solar battery back panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144390A (en) * | 2013-03-07 | 2013-06-12 | 云南云天化股份有限公司 | Rear panel for solar battery |
-
2010
- 2010-01-27 CN CN 201020102530 patent/CN201629341U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144390A (en) * | 2013-03-07 | 2013-06-12 | 云南云天化股份有限公司 | Rear panel for solar battery |
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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 |
Granted publication date: 20101110 Termination date: 20180127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |