CN202009005U - Ethylene-vinyl acetate copolymer (EVA) glue film for photovoltaic components - Google Patents
Ethylene-vinyl acetate copolymer (EVA) glue film for photovoltaic components Download PDFInfo
- Publication number
- CN202009005U CN202009005U CN2011201142389U CN201120114238U CN202009005U CN 202009005 U CN202009005 U CN 202009005U CN 2011201142389 U CN2011201142389 U CN 2011201142389U CN 201120114238 U CN201120114238 U CN 201120114238U CN 202009005 U CN202009005 U CN 202009005U
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- China
- Prior art keywords
- eva
- battery pieces
- battery
- photovoltaic
- glue film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- 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
Abstract
The utility model relates to an ethylene-vinyl acetate copolymer (EVA) glue film for photovoltaic components, which comprises the structure that a plurality of battery piece installing grooves of which the widths correspond to those of photovoltaic battery pieces are distributed on the pile face of the EVA glue film in parallel. When the EVA glue film for the photovoltaic components is used, the photovoltaic battery pieces are arranged in the battery piece installing grooves in an arrangement way, i.e. the positions of the photovoltaic battery pieces are relatively fixed; and therefore, the condition that the position deviation or the local glue shortage of the packaged battery pieces occurs is not easy to cause under a high-temperature molten state. Because the clearances of the battery pieces are effectively filled by EVA before the clearances of the battery pieces are laminated, the content of the EVA is properly lowered by 2 to 3 percent; and under the condition that the fluidity is changed into a bad state, the condition that the EVA can not be infiltrated into the packaged clearances is improved. Furthermore, because the EVA battery pieces are in self adaption with the restriction of the grooves, battery strings with the occurrence of deflective welding in series welding can be detected at the first time, so that the problems of hidden cracking of fragments and the like, which are caused by the laminating stress caused because of the deflective welding, are deracinated.
Description
Technical field
The utility model relates to a kind of photovoltaic module EVA glued membrane.
Background technology
The photovoltaic development is walked earthward from space, move towards the integrated and compact applications of building from concentrating the power station, the not too big variation of its packaged type, EVA is current to be become market and occupies and surpass 90% encapsulating material, and materials such as the PVB that continues to bring out, POE, conducting resinl all can't substitute the market position of EVA in a short time.
EVA because of its by ethylene vinyl acetate copolymerization particle, tackifier, antioxidant, anti-ultraviolet ageing agent and other additives of adding special ratios evenly stirs calendering or curtain coating forms, later stage cuts and embossing making herbs into wool, guarantees that EVA possesses good thickness homogeneity, frictional force and tensile property.Current EVA embossing mainly contains two kinds of single-side embossing and double-sided embossings, and embossing also has lozenge, rectangle line, circular line or the like except that the frosted line.Such as the EVA glued membrane of 0.50mm thickness, line peak height overall 0.5mm, the high 0.30mm ~ 0.45mm of line paddy.
The test that the EVA glued membrane is low with its packaging cost, package quality is relatively stable, ageing-resistant effect can stand outdoor environment year in year out and very popular, but because of its shrinkage ratio differs, find time to cause mobile under the high temperature fused state, and cause the position of a large amount of packed battery sheets that skew or local starved take place.How to solve the above-mentioned technical problem that adopts the EVA glued membrane to bring under the situation of not changing existing equipment, be the technical problem that this area will solve.
The utility model content
The technical problems to be solved in the utility model provide a kind of simple in structure, shrinkage ratio consistent, under high temperature fused state, be difficult for causing the packed battery sheet occurrence positions skew or the photovoltaic module EVA glued membrane of local starved.
For solving the problems of the technologies described above, the utility model provides a kind of photovoltaic module EVA glued membrane, and it comprises: parallel a plurality of width and the corresponding battery sheet of the photovoltaic cell sheet mounting groove of being distributed with on the matte of this EVA glued membrane.
Further, the groove depth of this battery sheet mounting groove is 0.08-0.12mm.
The utlity model has positive effect: photovoltaic module of the present utility model with the EVA glued membrane in use, the photovoltaic cell sheet is arranged and is located in the described battery sheet mounting groove, be the position relative fixed of photovoltaic cell sheet, therefore under high temperature fused state, be difficult for causing the packed battery sheet occurrence positions skew or the situation of local starved.Because of the effective filling of EVA before to battery sheet gap lamination, EVA content suitably reduces by 2 ~ 3%, and the situation that EVA can't penetrate into the encapsulation gap under the situation of mobile variation obtains taking a turn for the better, so the EVA production cost also can reduce about 2%.In addition, because of the constraint of EVA battery sheet self adaptation groove, the crooked battery strings of series welding welding occurring can be discovered the very first time, thereby stops to cause the latent problem such as split of fragment because of welding the crooked lamination stress that causes.Equally,, also only need make very little making herbs into wool lines and revise, keep the making herbs into wool lines that does not increase part, add system battery strings self adaptation groove line, same being suitable for for the assembly of 156 batteries or other specification battery.Technology is not affected.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the Facad structure figure that the photovoltaic module among the embodiment is used the EVA glued membrane;
Fig. 2 is the A-A cutaway view among Fig. 1.
Embodiment
See Fig. 1, parallel a plurality of width and the corresponding battery sheet of the photovoltaic cell sheet mounting groove 11 of being distributed with on the matte of the photovoltaic module of present embodiment with EVA glued membrane 1.
The groove depth of this battery sheet mounting groove 11 is 0.1mm.
During concrete enforcement, the battery sheet mounting groove 11 of 126mm wide cut is adapted to the EVA encapsulating film of monocrystalline 125 photovoltaic modulies, change to the making herbs into wool striped that adaptive battery is arranged from traditional embossing making herbs into wool, 2.5mm the part of wide cut and 20.75mm wide cut exceeds other parts 0.1mm, battery strings will be by relative fixed in default groove.Even carry out in the process at laminating technology, the difference existence because of the colloidal sol amount does not have obvious displacement situation yet and takes place.
The foregoing description only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (2)
1. a photovoltaic module EVA glued membrane is characterized in that: parallel a plurality of width and the corresponding battery sheet of the photovoltaic cell sheet mounting groove (11) of being distributed with on the matte of this EVA glued membrane (1).
2. photovoltaic module EVA glued membrane according to claim 1 is characterized in that: the groove depth of this battery sheet mounting groove (11) is 0.08-0.12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201142389U CN202009005U (en) | 2011-04-18 | 2011-04-18 | Ethylene-vinyl acetate copolymer (EVA) glue film for photovoltaic components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201142389U CN202009005U (en) | 2011-04-18 | 2011-04-18 | Ethylene-vinyl acetate copolymer (EVA) glue film for photovoltaic components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009005U true CN202009005U (en) | 2011-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201142389U Expired - Fee Related CN202009005U (en) | 2011-04-18 | 2011-04-18 | Ethylene-vinyl acetate copolymer (EVA) glue film for photovoltaic components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549073A (en) * | 2017-01-10 | 2017-03-29 | 江苏朗杰膜科技有限公司 | A kind of film assembly for photovoltaic solar cell lamination |
| CN111682082A (en) * | 2020-07-17 | 2020-09-18 | 杭州福斯特应用材料股份有限公司 | Packaging adhesive film and photovoltaic module |
-
2011
- 2011-04-18 CN CN2011201142389U patent/CN202009005U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549073A (en) * | 2017-01-10 | 2017-03-29 | 江苏朗杰膜科技有限公司 | A kind of film assembly for photovoltaic solar cell lamination |
| CN106549073B (en) * | 2017-01-10 | 2018-09-18 | 中南朗杰膜科技（江苏）有限公司 | A kind of film assembly for photovoltaic solar cell lamination |
| CN111682082A (en) * | 2020-07-17 | 2020-09-18 | 杭州福斯特应用材料股份有限公司 | Packaging adhesive film and photovoltaic module |
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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: 20111012 Termination date: 20150418 |
|
| EXPY | Termination of patent right or utility model |