CN201289852Y - Solar cell module backing film - Google Patents
Solar cell module backing film Download PDFInfo
- Publication number
- CN201289852Y CN201289852Y CN 200820185350 CN200820185350U CN201289852Y CN 201289852 Y CN201289852 Y CN 201289852Y CN 200820185350 CN200820185350 CN 200820185350 CN 200820185350 U CN200820185350 U CN 200820185350U CN 201289852 Y CN201289852 Y CN 201289852Y
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- Prior art keywords
- layer
- film
- ptfe
- thickness
- notacoria
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a back film of a solar battery assembly, which is formed by compounding four layers of film in sequence as follows: an ethylene-vinyl acetate copolymer (EVA) film of thickness 0.05-0.40 mm as a first layer, a polyfluortetraethylene (PTFE) film of thickness 0.05-0.20 mm as a second layer, a high-performance fiber (HPF) base cloth layer of thickness 0.05-0.30 mm as a third layer, and a polyfluortetraethylene (PTFE) film of thickness 0.05-0.20 mm as a fourth layer. The back film does not use polyfluoroethylene (PVF) material so as to greatly reduce cost and facilitate processing, and has resistance to ageing, corrosion, solvents and pollution, good drainage performance, low hydroscopic property and excellent obstructing property, thereby efficiently preventing media from corroding EVA and a solar battery. Through the combination of the elasticity of EVA and the tenacity of PTFE, the solar battery has good anti-shock performance and obvious comprehensive protection effect.
Description
Technical field
The utility model relates to a kind of solar module notacoria.
Background technology
Solar energy is human inexhaustible regenerative resource, has sufficient spatter property, absolute fail safe, relative popularity, certain longevity and non-maintaining property, the abundance of resource and potential advantages such as economy.Along with the aggravation and the environmental protection needs of energy crisis, the development and use of solar energy come into one's own day by day.In the middle of effective utilization of solar energy, big sun can solar photovoltaic utilization be with fastest developing speed, most active in the last few years research field.
Topmost solar module as the solar photoelectric utilization is to be formed by the vacuum heat seal by energy ultrawhite figured glass, ethene-vinyl acetate copolymer eva glued membrane, crystalline silicon (monocrystalline or polycrystalline), EVA glued membrane, notacoria.Notacoria plays skeleton and to the protective effect of crystalline silicon.
At present, the substrate notacoria of solar cell mainly adopts a kind of TPT notacoria, is by two-layer polyvinyl fluoride PVF (being commonly called as Tedlar) and intermediate layer polyester PET three-layer thin-film form by the adhesive heat seal up and down.Because polyvinyl fluoride thin film adhesive production technology in short supply, anti-aging and accurate complex technique can not get solving, make only account for battery component cost 1% less than notacoria production cost, processing technology require high, being not easy to promote, is the great bottleneck of restriction solar cell industry development.
In order to reduce the cost of polyvinyl fluoride thin film, a kind of TPE notacoria of existing employing, be with of the difference of TPT notacoria in configuration aspects, lacked ground floor PVF in the TPE notacoria, though reduced cost like this, but sunlight on the relatively poor PET film of weatherability, influences the useful life of product with direct irradiation.Also adopt a kind of PET notacoria, compare with the TPT/TPE notacoria, have preferably that air is isolated, anti-oxidation, moisture resistance wet and the excellent electric insulating energy, and owing to do not use expensive fluororesin, has low-cost advantage, yet weatherability, the electrical insulation capability of PET notacoria are more far short of what is expected than the notacoria with fluororesin, therefore are difficult to become main product.
Summary of the invention
In order to overcome the drawback that prior art exists, the purpose of this utility model provides a kind of polyvinyl fluoride PVF material that do not use, and reduces cost, is convenient to processing greatly, and the novel FBFE solar module notacoria of long service life, function admirable.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of solar module notacoria is composited successively by four tunic layers, ground floor is the thick ethene of 0.05-0.40mm-vinyl acetate copolymer eva glued membrane, the second layer is the thick polytetrafluoroethylene PTFE glued membrane of 0.05-0.20mm, the 3rd layer is the thick high-performance fiber HPF base cloth of 0.05-0.30mm, and the 4th layer is the thick polytetrafluoroethylene PTFE glued membrane of 0.05-0.20mm.
Further, the base cloth that becomes of described high-performance fiber HPF base cloth one or more mixed weavings that are carbon fiber, kevlar fiber or glass fibre.
A kind of FBFE solar module notacoria of the present utility model, mainly be with polytetrafluoroethylene PTFE dipping high-performance fiber HPF base cloth coating, replaced expensive PVF film, and abandoned the relatively poor PET film of weatherability, have following characteristics: 1. from raw material, select the ptfe emulsion and the high-performance fiber ultra-fine, high-strength, high-modulus of raw material abundance, greatly reduce cost; 2. adopt dipping and coating process, promoted that the fluororesin deep processing is improved to precise treatment by the extensive style of technology and control device, and elementaryization of product is to the high added value conversion; 3. by adopting reactive blending modification, surface modification, improve the performance of PTFE, enlarged the range of application of PTFE; 4. do not use adhesive and organic additive in the production technology, overcome the TPT notacoria in process of production, be melt flow temperature and its mobile performance of raising that reduces the PVF resin, need to add the drawback of a large amount of solvent contamination environment, therefore, non-environmental-pollution in this notacoria course of processing, technology greenization.
This notacoria is a primary raw material with polytetrafluoroethylene PTFE and high-performance fiber HPF base cloth, by precision control to PTFE resin reaction blending and modifying, PTFE coating surface modifying, impregnation technology, make this notacoria have performance and excellent mechanical performance, barrier property and low water absorbables such as ageing-resistant, corrosion-resistant, anti-solvent, resistant be hydrophobic, prevented medium effectively, especially water, oxygen, corrosivity gas-liquid (as acid rain) etc. are to the erosion of EVA with to the influence of solar battery sheet; Elasticity and the combination of PTFE robustness by EVA make the battery sheet have stronger anti-seismic performance, and the integrated protection effect is obvious.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of FBFE solar module notacoria shown in Figure 1, mainly from top to bottom be composited successively by ethene-vinyl acetate copolymer eva rete 1, polytetrafluoroethylene PTFE rete 2, high-performance fiber HPF base cloth layer 3, polytetrafluoroethylene PTFE rete 4, wherein the thickness of ground floor ethene-vinyl acetate copolymer eva rete is 0.15mm, the thickness of second layer polytetrafluoroethylene PTFE rete is 0.08mm, the thickness of the 3rd floor height performance fibers HPF base cloth layer is 0.18mm, and the thickness of the 4th strata tetrafluoroethene PTFE rete is 0.08mm.
Claims (2)
1, a kind of solar module notacoria, it is characterized in that: be composited successively by four tunic layers, ground floor is the thick ethene of 0.05-0.40mm-vinyl acetate copolymer eva rete, the second layer is the thick polytetrafluoroethylene PTFE rete of 0.05-0.20mm, the 3rd layer is the thick high-performance fiber HPF base cloth layer of 0.05-0.30mm, and the 4th layer is the thick polytetrafluoroethylene PTFE rete of 0.05-0.20mm.
2, solar module notacoria according to claim 1 is characterized in that: one or more mixed weavings that described high-performance fiber HPF base cloth layer is carbon fiber, kevlar fiber or glass fibre form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820185350 CN201289852Y (en) | 2008-09-28 | 2008-09-28 | Solar cell module backing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820185350 CN201289852Y (en) | 2008-09-28 | 2008-09-28 | Solar cell module backing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289852Y true CN201289852Y (en) | 2009-08-12 |
Family
ID=40981534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820185350 Expired - Fee Related CN201289852Y (en) | 2008-09-28 | 2008-09-28 | Solar cell module backing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289852Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544193A (en) * | 2010-12-21 | 2012-07-04 | 沙嫣 | Installation method of solar battery assembly |
| CN104385740A (en) * | 2014-11-13 | 2015-03-04 | 无锡中洁能源技术有限公司 | Anti-corrosion anti-aging substrate for solar battery back membrane and preparation method of substrate |
| CN106252461A (en) * | 2016-08-27 | 2016-12-21 | 无锡中洁能源技术有限公司 | A kind of production technology of resist processing solar energy backboard |
| US10128393B2 (en) | 2010-07-21 | 2018-11-13 | First Solar, Inc. | Connection assembly protection |
| CN109355028A (en) * | 2018-10-29 | 2019-02-19 | 扬中市华龙橡塑电器有限公司 | A kind of ageing-resistant automobile window glass patch |
-
2008
- 2008-09-28 CN CN 200820185350 patent/CN201289852Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10128393B2 (en) | 2010-07-21 | 2018-11-13 | First Solar, Inc. | Connection assembly protection |
| CN102544193A (en) * | 2010-12-21 | 2012-07-04 | 沙嫣 | Installation method of solar battery assembly |
| CN102544193B (en) * | 2010-12-21 | 2015-11-25 | 沙嫣 | The installation method of solar module |
| CN104385740A (en) * | 2014-11-13 | 2015-03-04 | 无锡中洁能源技术有限公司 | Anti-corrosion anti-aging substrate for solar battery back membrane and preparation method of substrate |
| CN106252461A (en) * | 2016-08-27 | 2016-12-21 | 无锡中洁能源技术有限公司 | A kind of production technology of resist processing solar energy backboard |
| CN109355028A (en) * | 2018-10-29 | 2019-02-19 | 扬中市华龙橡塑电器有限公司 | A kind of ageing-resistant automobile window glass patch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU VEIK TECHNOLOGY CO., LTD. Assignor: Taixing Weiwei Polymer Material Co., Ltd. Contract record no.: 2011320000641 Denomination of utility model: Back membrane material of solar cell module Granted publication date: 20090812 License type: Exclusive License Record date: 20110422 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20130928 |