CN201430145Y - Novel back film for solar-energy battery - Google Patents
Novel back film for solar-energy battery Download PDFInfo
- Publication number
- CN201430145Y CN201430145Y CN2009201185974U CN200920118597U CN201430145Y CN 201430145 Y CN201430145 Y CN 201430145Y CN 2009201185974 U CN2009201185974 U CN 2009201185974U CN 200920118597 U CN200920118597 U CN 200920118597U CN 201430145 Y CN201430145 Y CN 201430145Y
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- Prior art keywords
- thin film
- polyvinyl fluoride
- film
- polyethylene terephthalate
- adhesive layer
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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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- Photovoltaic Devices (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model relates to novel back film for a solar-energy battery, which aims to overcome the technical defect of unreasonable design of the prior art. The back film comprises a first polyvinylfluoride film, a polyethylene terephthalate film and a second polyvinyl fluoride film which are combined together, wherein the first polyvinyl fluoride film is combined with the polyethylene terephthalate film together through a first binding layer; and the second polyvinyl fluoride film is combined with the polyethylene terephthalate film together through a second binding layer. Compared with theprior art, the novel back film for the solar-energy battery, which is provided by the utility model, has the advantages as follows:the structure design is reasonable, and the indexes of all properties are improved even through manufacturing materials are adopted less; both the weather resistance and the chemical resistance are high, the electric insulation performance is good, and the water resistance is strong; and the process and the manufacture are easy and the production cost is low.
Description
Technical field
The utility model relates to technical field of solar batteries, especially relates to a kind of novel solar battery notacoria.
Background technology
Solar panel is a laminated construction normally, mainly comprises surface layer of glass, EVA sealant, solar battery sheet, EVA sealant and solar battery back film.Wherein solar battery sheet is by two-layer EVA sealant sealed envelope.The main effect of solar battery back film is the overall mechanical strength that improves solar panel, can prevent that in addition water vapor permeable from sealant, influencing the useful life of battery sheet.
In order to improve the overall performance of notacoria, occurred in the prior art carrying out improved plan at notacoria in a large number.For example, Chinese patent literature discloses a kind of notacoria [application number: 200820133533] that is used for solar cell, it is characterized in that: it is five-layer structure, comprises the silicon titanizing film forming layer, basic unit, silicon titanizing film forming layer, fluorine-based rete and the silicon titanizing film forming layer that are laminated with successively together.This scheme has high-adhesion and has high-weatherability, chemical resistance, high electrical insulation properties, high water proofing property.
Although such scheme increases on the performance in every respect, the number of plies of whole notacoria is more, and structure is comparatively complicated, and manufacture difficulty is bigger, and becomes to produce the cost height.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of simple in structure, and various performance index height are easy to processing and manufacturing, and the lower novel solar battery notacoria of production cost.
For achieving the above object, the utility model has adopted following technical proposal: this novel solar battery notacoria, it is characterized in that, this solar battery back film comprises first polyvinyl fluoride thin film, polyethylene terephthalate thin film and second polyvinyl fluoride thin film that is combined with each other successively, be combined with each other by first adhesive layer between first above-mentioned polyvinyl fluoride thin film and the polyethylene terephthalate thin film, be combined with each other by second adhesive layer between described second polyvinyl fluoride thin film and the polyethylene terephthalate thin film.
Polyvinyl fluoride thin film (PVF) has crystal structure, high electric insulation performance, high robustness, good chemicals-resistant, anti-aging and decay resistance; And ability-73～+ 121 ℃.It is fully synthetic, and the PVF that does not contain free fluoride is very stable, can not dissociate fluoride under the normal temperature.Polyethylene terephthalate thin film (PET), molecular structure height symmetry, has certain crystalline orientation ability, so have higher film forming and become second nature, it has good optical property and weatherability, and amorphous polyethylene terephthalate thin film (PET) has the good optical transparency.Polyethylene terephthalate thin film (PET) has good abrasion performance frictional property and dimensional stability and electrical insulating property in addition.
First polyvinyl fluoride thin film in the utility model has good anti-environmental attack ability, and polyethylene terephthalate thin film has the good insulation performance performance, and second polyvinyl fluoride thin film has good adhesive property with EVA after surface treatment.Therefore, have higher weatherability, water absorption, chemical resistance, ultraviolet-resistant aging reduces heat-shrinkable, can effectively improve solar module useful life.In addition, adopt first adhesive layer and second adhesive layer to realize being connected, firmly whole.
In above-mentioned novel solar battery notacoria, the thickness of described first polyvinyl fluoride thin film and second polyvinyl fluoride thin film equates.
In above-mentioned novel solar battery notacoria, the thickness of described first adhesive layer and second adhesive layer equates.
In above-mentioned novel solar battery notacoria, described first adhesive layer and second adhesive layer are made by compound glue.
In above-mentioned novel solar battery notacoria, the thickness of described first polyvinyl fluoride thin film or second polyvinyl fluoride thin film is 0.02-0.03mm; The thickness of described ethylene two ester films is 0.2-0.3mm.
Compared with prior art, the advantage of this novel solar battery notacoria is: 1, reasonable in design, adopt less manufactured materials, and but significantly promoted every performance index.2, have high-weatherability, chemical resistance, electrical insulation properties is good, water proofing property is strong.3, be easy to processing and manufacturing, production cost is low.
Description of drawings
Fig. 1 is the structural representation that the utility model embodiment 1 provides.
Among the figure, first polyvinyl fluoride thin film 1, polyethylene terephthalate thin film 2, second polyvinyl fluoride thin film 3, first adhesive layer 12, second adhesive layer 32.
Embodiment
Embodiment 1:
As shown in Figure 1, this novel solar battery notacoria comprises first polyvinyl fluoride thin film 1, polyethylene terephthalate thin film 2 and second polyvinyl fluoride thin film 3 that is combined with each other successively.Be combined with each other by first adhesive layer 12 between first above-mentioned polyvinyl fluoride thin film 1 and the polyethylene terephthalate thin film 2.Be combined with each other by second adhesive layer 32 between second polyvinyl fluoride thin film 3 and the polyethylene terephthalate thin film 2.
In the present embodiment, the thickness of first polyvinyl fluoride thin film 1 and second polyvinyl fluoride thin film 2 equates.The thickness of first adhesive layer 12 and second adhesive layer 32 equates, and first adhesive layer 12 and second adhesive layer 32 are made by compound glue.Wherein the thickness of first polyvinyl fluoride thin film 1 or second polyvinyl fluoride thin film 3 is 0.025mm, and the thickness of polyethylene terephthalate thin film 2 is 0.25mm.In addition, add the thickness of first adhesive layer 12 and second adhesive layer 32, the thickness of whole novel solar battery notacoria is about 0.32mm.
Formation first adhesive layer 12 in the present embodiment and the compound glue of second adhesive layer 32 can be compound glue.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as first polyvinyl fluoride thin film 1, polyethylene terephthalate thin film 2, second polyvinyl fluoride thin film 3, first adhesive layer 12, second adhesive layer 32 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1. novel solar battery notacoria, it is characterized in that, this solar battery back film comprises first polyvinyl fluoride thin film (1), polyethylene terephthalate thin film (2) and second polyvinyl fluoride thin film (3) that is combined with each other successively, be combined with each other by first adhesive layer (12) between above-mentioned first polyvinyl fluoride thin film (1) and the polyethylene terephthalate thin film (2), be combined with each other by second adhesive layer (32) between described second polyvinyl fluoride thin film (3) and the polyethylene terephthalate thin film (2).
2. novel solar battery notacoria according to claim 1 is characterized in that, the thickness of described first polyvinyl fluoride thin film (1) and second polyvinyl fluoride thin film (3) equates.
3. novel solar battery notacoria according to claim 1 is characterized in that, the thickness of described first adhesive layer (12) and second adhesive layer (32) equates.
4. according to claim 1 or 2 or 3 described novel solar battery notacorias, it is characterized in that described first adhesive layer (12) and second adhesive layer (32) are made by compound glue.
5. novel solar battery notacoria according to claim 4 is characterized in that, the thickness of described first polyvinyl fluoride thin film (1) or second polyvinyl fluoride thin film (3) is 0.02-0.03mm; The thickness of described polyethylene terephthalate thin film (2) is 0.2-0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201185974U CN201430145Y (en) | 2009-04-27 | 2009-04-27 | Novel back film for solar-energy battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201185974U CN201430145Y (en) | 2009-04-27 | 2009-04-27 | Novel back film for solar-energy battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201430145Y true CN201430145Y (en) | 2010-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201185974U Expired - Fee Related CN201430145Y (en) | 2009-04-27 | 2009-04-27 | Novel back film for solar-energy battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN201430145Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985895A (en) * | 2015-06-05 | 2015-10-21 | 苏州佳亿达电器有限公司 | Long-life back film for solar photovoltaic panel |
-
2009
- 2009-04-27 CN CN2009201185974U patent/CN201430145Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985895A (en) * | 2015-06-05 | 2015-10-21 | 苏州佳亿达电器有限公司 | Long-life back film for solar photovoltaic panel |
| CN104985895B (en) * | 2015-06-05 | 2017-03-08 | 苏州佳亿达电器有限公司 | A kind of high life notacoria for solar opto-electronic board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Zhaojun Document name: Notification that Application Deemed not to be Proposed |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20120427 |