CN202934885U - All-polyester solar cell back film - Google Patents
All-polyester solar cell back film Download PDFInfo
- Publication number
- CN202934885U CN202934885U CN 201220553468 CN201220553468U CN202934885U CN 202934885 U CN202934885 U CN 202934885U CN 201220553468 CN201220553468 CN 201220553468 CN 201220553468 U CN201220553468 U CN 201220553468U CN 202934885 U CN202934885 U CN 202934885U
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- pet
- layer
- back film
- solar cell
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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
The utility model relates to an all-polyester solar cell back film which comprises a PET (polyethylene terephthalate) substrate, wherein the upper side face and the lower side face of the PET substrate are coated with an upper high weather-resistant PET layer and a lower high weather-resistant PET layer respectively; the external surface of the lower high weather-resistant PET layer is coated with a grafting layer; a biaxially oriented PET film layer is arranged between the upper high weather-resistant PET layer and the PET substrate; and bonding layers are arranged between the PET substrate and the biaxially oriented PET film layer and between the PET substrate and the lower high weather-resistant PET layer respectively. The all-polyester solar cell back film has the advantages that the back film does not contain a fluorine material; the integral cost of the back film is lowered to some extent; the surface of an inner weather-resistant layer PET material is treated by a multi-ammonia plasma treatment technique; the excellent hydrophilic property is endowed to the material; lasting and high cohesiveness between the back film applied in a solar cell and EVA (ethylene-vinyl acetate) is achieved; the back film and EVA are not layered permanently after cell component heat lamination processing; and the long-term use property of the back film is ensured.
Description
Technical field
The utility model relates to a kind of solar battery back film, particularly a kind of whole polyester solar battery back film.
Background technology
Present domestic crystal silicon solar battery component package mainly contains multiple membranous type (weathering layer material etc. is bonded by glue with base material) and application type (directly applying one deck fluorine-containing coat on base material) two classes with notacoria, the weathering layer of this two classes notacoria all contains the fluorine material, fluorine itself is a kind of poisonous, chemical substance that corrosivity is stronger, and its use cost is also higher.
Summary of the invention
The purpose of this utility model is exactly the deficiency in the background technology, and a kind of whole polyester solar battery back film is provided.
For achieving the above object, the utility model adopts following technical scheme: a kind of whole polyester solar battery back film, comprise the PET base material, PET base material upper side and downside are covered with respectively Gao Naihou pet layer and lower Gao Naihou pet layer, lower Gao Naihou pet layer outer surface is covered with the grafting layer, be provided with PET double stretching thin layer between upper Gao Naihou pet layer and PET base material, be equipped with tack coat between PET base material and PET double stretching thin layer and between PET base material and lower Gao Naihou pet layer.
For a kind of optimization of the present utility model, the thickness of PET double stretching thin layer is 30 ~ 50 μ m.
For a kind of optimization of the present utility model, the thickness of the weather-proof pet layer of described upper height is 30～50 μ m, and the thickness of the weather-proof pet layer of lower height is 30～60 μ m.
For a kind of optimization of the present utility model, the thickness of tack coat is 5～15 μ m.
For a kind of optimization of the present utility model, the thickness of described PET base material is 100～250 μ m.
For a kind of optimization of the present utility model, the thickness of described grafting layer is 1～5 μ m.
The utility model is compared with background technology, this notacoria is fluorine material not, it decreases aspect holistic cost, and adopt many ammonia bulk plasmon treatment technology as the surface of internal layer weathering layer PET material, give the hydrophilicity of material excellence, realized notacoria when solar cell application and the lasting high-adhesion of EVA; Guarantee not stratified lastingly through after the processing of battery component heat lamination of notacoria and EVA, thereby guaranteed the Long-Term Properties of notacoria.
Description of drawings
Fig. 1 is the schematic cross-section of whole polyester solar battery back film.
The specific embodiment
Embodiment 1: with reference to Fig. 1.A kind of whole polyester solar battery back film, comprise PET base material 4, PET base material 4 upper sides and downside are covered with respectively Gao Naihou pet layer 1 and lower Gao Naihou pet layer 5, lower Gao Naihou pet layer 5 outer surfaces are covered with grafting layer 6, be provided with PET double stretching thin layer 2 between upper Gao Naihou pet layer 1 and PET base material 4, be equipped with tack coat 3 between PET base material 4 and PET double stretching thin layer 2 and between PET base material 4 and lower Gao Naihou pet layer 5.The thickness of PET double stretching thin layer 2 is 30 ~ 50 μ m.The thickness of the weather-proof pet layer 1 of described upper height is 30～50 μ m, and the thickness of the weather-proof pet layer 5 of lower height is 30～60 μ m.The thickness of tack coat 3 is 5～15 μ m.The thickness of described PET base material 4 is 100～250 μ m.The thickness of described grafting layer 6 is 1～5 μ m.
As preferably, the thickness of PET double stretching thin layer 2 is 50 μ m.The thickness of the weather-proof pet layer 1 of described upper height is 50 μ m, and the thickness of the weather-proof pet layer 5 of lower height is 50 μ m.The thickness of tack coat 3 is 10 μ m.The thickness of described PET base material 4 is 200 μ m.The thickness of described grafting layer 6 is 3 μ m.
What need to understand is: although the present embodiment is to the utility model detailed explanation of contrasting; but these explanations; just to simple declaration of the present utility model; rather than to restriction of the present utility model; any innovation and creation that do not exceed in the utility model connotation all fall in protection domain of the present utility model.
Claims (6)
1. whole polyester solar battery back film, comprise the PET base material, it is characterized in that: PET base material upper side and downside are covered with respectively Gao Naihou pet layer and lower Gao Naihou pet layer, lower Gao Naihou pet layer outer surface is covered with the grafting layer, be provided with PET double stretching thin layer between upper Gao Naihou pet layer and PET base material, be equipped with tack coat between PET base material and PET double stretching thin layer and between PET base material and lower Gao Naihou pet layer.
2. whole polyester solar cell notacoria according to claim 1, it is characterized in that: the thickness of PET double stretching thin layer is 30 ~ 50 μ m.
3. whole polyester solar cell notacoria according to claim 1, it is characterized in that: the thickness of the weather-proof pet layer of described upper height is 30～50 μ m, the thickness of the weather-proof pet layer of lower height is 30～60 μ m.
4. whole polyester solar cell notacoria according to claim 1, it is characterized in that: the thickness of tack coat is 5～15 μ m.
5. whole polyester solar cell notacoria according to claim 1, it is characterized in that: the thickness of described PET base material is 100～250 μ m.
6. whole polyester solar cell notacoria according to claim 1, it is characterized in that: the thickness of described grafting layer is 1～5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553468 CN202934885U (en) | 2012-10-25 | 2012-10-25 | All-polyester solar cell back film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553468 CN202934885U (en) | 2012-10-25 | 2012-10-25 | All-polyester solar cell back film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934885U true CN202934885U (en) | 2013-05-15 |
Family
ID=48319144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553468 Expired - Fee Related CN202934885U (en) | 2012-10-25 | 2012-10-25 | All-polyester solar cell back film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934885U (en) |
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2012
- 2012-10-25 CN CN 201220553468 patent/CN202934885U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 311301, Hangzhou, Zhejiang province Ling'an Linglong street, 128 Xian Xian Road Patentee after: Hangzhou new and new energy Limited by Share Ltd Address before: Jincheng Street Ling'an city Hangzhou city Zhejiang province 311300 three eye bridge without number 3 Patentee before: Hangzhou Xinzi-Photoelectric Materials Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20191025 |