CN202847040U - Rear panel structure for solar cell module - Google Patents
Rear panel structure for solar cell module Download PDFInfo
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- CN202847040U CN202847040U CN 201220548392 CN201220548392U CN202847040U CN 202847040 U CN202847040 U CN 202847040U CN 201220548392 CN201220548392 CN 201220548392 CN 201220548392 U CN201220548392 U CN 201220548392U CN 202847040 U CN202847040 U CN 202847040U
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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 discloses a rear panel structure for a solar cell module. The rear panel structure comprises a fluorine-containing polymer film, an inner laminating film comprising a thermoplastic elastic layer, and a first adhesion agent layer formed between the fluorine-containing polymer film and the inner laminating film. The rear panel structure for the solar cell module, provided by the utility model, can be manufactured by adopting a single process, has better mechanical physical property, and can not generate an acetic acid gas and avoid the problem of electric corrosion of the solar cell module.
Description
Technical field
The utility model is about a kind of back board structure for solar module.
Background technology
Along with Development of Human Civilization, the whole world faces the problems such as serious energy crisis and environmental pollution.Wherein, solar energy directly can be transformed into the photovoltaic solar cells of electric energy, for solving whole world energy crisis and reducing one of important method of environmental pollution.
The conventional solar cell back board structure mainly is (for example: the trade name Tedlar of Du Pont film) to fit fluorine-containing based polymer film in the upper and lower surface of polyethylene terephthalate (PET) layer.But because the rear panel module Costco Wholesale is considered, recent solar cell backboard is in order to reduce the consumption of the fluorine-containing based polymer film of one side, use ethylene-acetic ethylene ester copolymer (ethylene-vinyl acetate copolymer, EVA) film instead and replace fluorine-containing based polymer film.For example, in the patent of M396491 Taiwan, it is the back board structure that discloses a kind of solar panels module, comprising material is the first electric insulation layer of polycarbonate-polyester alloy (PC-Polyester Alloy), and material is the sealing material layer of ethylene-acetic ethylene ester copolymer (EVA).Yet, use can produce acetic gas with the EVA material as the back board structure that the master was consisted of and cause bad electrical erosion.
Therefore, still have the necessity that solves the problem that causes take the EVA material as solar cell backboard that the master was consisted of.
The utility model content
In order to overcome defects, the utility model provides a kind of back board structure for solar module, the back board structure that should be used for solar module can be by simple processing procedure manufacturing, have good mechanical properties, simultaneously can not produce acetic gas and cause the problem of solar module electrical erosion.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of back board structure for solar module, comprise fluoro-containing copolymer film, interior overlay film and the first adhesion agent layer, described the first adhesion agent layer is formed between described fluoro-containing copolymer film and the described interior overlay film, and wherein, described interior overlay film includes the thermoplastic elastic layer.
The utility model for the further technical scheme that solves its technical problem and adopt is:
A kind of structure that the utility model is used for the back board structure of solar module is: also comprise polyethylene terephthalate layer and the second adhesion agent layer, wherein, described polyethylene terephthalate layer is to be formed between described the first adhesion agent layer and described the second adhesion agent layer, and described thermoplastic elastic layer is to be formed on described the second adhesion agent layer.
The another kind of structure that the utility model is used for the back board structure of solar module is: wherein, described interior overlay film also comprises gluing layer and polyethylene terephthalate layer, and described gluing layer is between described polyethylene terephthalate layer and described thermoplastic elastic layer, and the polyethylene terephthalate layer of described interior overlay film is bonding on the described fluoro-containing copolymer film by described the first adhesion agent layer.Preferably, described gluing layer is unsaturated carboxylic acid graft polyolefin resin layer or ethylene-vinyl alcohol copolymer resin layer.
In above-mentioned two kinds of structures, preferably, the thickness of described interior overlay film is 185 to 370 microns.
Another structure that the utility model is used for the back board structure of solar module is: wherein, described interior overlay film also comprises the ethylene vinyl acetate copolymer layer, and described back board structure also comprises co-extruded films, described co-extruded films has gluing layer and polyethylene terephthalate layer, described co-extruded films is between described the first adhesion agent layer and described interior overlay film, wherein, the thermoplastic elastic layer of the bonding described interior overlay film of gluing layer of described co-extruded films.Preferably, the thickness of described interior overlay film is 40 to 80 microns.Preferably, the thickness of described co-extruded films is 160 to 280 microns.
Preferably, described fluoro-containing copolymer film is pvf film, polyvinylidene fluoride film or tetrafluoroethene and ethylene copolymer film.
Preferably, the thickness of described thermoplastic elastic layer is 30 to 100 microns.
The beneficial effects of the utility model are: the back board structure for solar module of the present utility model comprises fluoro-containing copolymer film, interior overlay film and the first adhesion agent layer, the first adhesion agent layer is formed between described fluoro-containing copolymer film and the described interior overlay film, interior overlay film includes the thermoplastic elastic layer, the utility model uses thermoplastic elastomer (s) to replace the EVA in traditional backboard or reduces the EVA consumption, except considering that this thermoplastic elastomer (s) has the good mechanical properties, the utility model has good Bonding strength via the prepared back board structure of simple processing procedure and solar cell, in addition, because the utility model is to use the interior overlay film comprise the thermoplastic elastic layer to make back board structure for solar module, therefore under the environment of hot and humid degree, the EVA material that improves in traditional backboard easily produces hydrolysis and disengages the shortcoming that acetic gas causes electrical erosion.
Description of drawings
Fig. 1 is the back board structure schematic diagram that is used for solar module of the utility model embodiment 1;
Fig. 2 is the back board structure schematic diagram that is used for solar module of the utility model embodiment 2;
Fig. 3 is the back board structure schematic diagram that is used for solar module of the utility model embodiment 3.
The specific embodiment
Below by specific instantiation embodiment of the present utility model is described, those of ordinary skills can understand advantage of the present utility model and effect easily by content disclosed in the present specification.The utility model also can be implemented by other different modes, namely under the category that does not disclose departing from the utility model, can carry out different modifications and change.
Notice, the structure that the accompanying drawing of this specification illustrates, ratio, size etc., equal contents in order to cooperate specification to disclose only, understand and reading for those of ordinary skills, be not to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this specification as " on ", " first " reach terms such as " second ", also only for ease of understanding of narrating, but not in order to limit practical range of the present utility model, the change of its relativeness or adjustment, under without essence change technology contents, when being considered as the enforceable category of the utility model.
Embodiment 1: the present embodiment provides a kind of back board structure for solar module, comprising: fluoro-containing copolymer film 11; Interior overlay film 13 is to comprise thermoplastic elastic layer 131; And first adhesion agent layer 12, be to be formed between this fluoro-containing copolymer film 11 and the interior overlay film 13.
As shown in Figure 1, in the present embodiment, overlay film 13 comprises polyethylene terephthalate layer 133, the second adhesion agent layer 132 and thermoplastic elastic layer 131 in this.Accordingly, the back board structure that is used for solar module of the present embodiment comprises fluoro-containing copolymer film 11; Being formed at the interior overlay film 13 on this fluoro-containing copolymer film 11, is to comprise successively thermoplastic elastic layer 131, the second adhesion agent layer 132 and polyethylene terephthalate layer 133; And first adhesion agent layer 12 of binding this fluoro-containing copolymer film 11 and interior overlay film 13, wherein, this polyethylene terephthalate layer 133 is to be folded between this first adhesion agent layer 12 and the second adhesion agent layer 132, and this thermoplastic elastic layer 131 is to be formed on this second adhesion agent layer 132.
Be used for the making of the back board structure of solar module at this, mainly be that preparation thickness is 150 to 250 microns polyethylene terephthalate layer 133, making thickness in second adhesion agent layer 132 of surface thereof by material such as epoxy resin is that 30 to 100 microns thermoplastic elastic layer 131 is bonding on this polyethylene terephthalate layer 133, forms thickness and be 185 to 370 microns interior overlay film 13.Then, another surface of this polyethylene terephthalate layer 133 of overlay film 13 upper use the first adhesion agent layer 12 bonding thickness are 20 to 38 microns fluoro-containing copolymer film 11 in this, can obtain the back board structure for solar module of the present utility model as shown in Figure 1.
Embodiment 2: be another instantiation that shows the back board structure for solar module of the present utility model such as Fig. 2.In the present embodiment, the back board structure for solar module of the present utility model comprises: fluoro-containing copolymer film 21; Being formed at the interior overlay film 23 on this fluoro-containing copolymer film 21, is to comprise successively thermoplastic elastic layer 231, gluing layer 232 and polyethylene terephthalate layer 233; And be formed at the first adhesion agent layer 22 between this fluoro-containing copolymer film 21 and the interior overlay film 23.
In the present embodiment, be to form the interior overlay film 23 that comprises successively thermoplastic elastic layer 231, gluing layer 232 and polyethylene terephthalate layer 233 by coextrusion (extrusion) mode.Wherein, the thickness of thermoplastic elastic layer 231 is 30 ~ 100um, the thickness of gluing layer 232 is 10 ~ 30um, the thickness of polyethylene terephthalate layer 233 is 150 ~ 250um, on making, be that to make thickness by the first adhesion agent layer 22 be that polyethylene terephthalate layer 233 and the thickness of 185 to 370 microns interior overlay film 23 is that 20 to 38 microns fluoro-containing copolymer film 21 binds, can obtain the back board structure for solar module of the present utility model as shown in Figure 2.
Embodiment 3: be the another instantiation that shows the back board structure for solar module of the present utility model such as Fig. 3.In the present embodiment, the back board structure for solar module of the present utility model comprises: fluoro-containing copolymer film 31; Being formed at the interior overlay film 33 on this fluoro-containing copolymer film 31, is to comprise thermoplastic elastic layer 331 and ethylene vinyl acetate copolymer layer 334; Be formed at the first adhesion agent layer 32 between this fluoro-containing copolymer film 31 and the interior overlay film 33; And be formed at co-extruded films 34 between this first adhesion agent layer 32 and the interior overlay film 33, to comprise gluing layer 332 and polyethylene terephthalate layer 333, wherein, this gluing layer 332 is to fix this polyethylene terephthalate layer 333 and thermoplastic elastic layer 331 for hot pressing.
Wherein, preferred construction is, should in overlay film 33 and co-extruded films 34 formed with coextrusion applying processing procedure, and the thickness that forms be 40 to 80 microns should in overlay film 33 and thickness be the gluing layer 332 that 160 to 280 microns co-extruded films 34 can be by this co-extruded films 34 and thermoplastic elastic layer 331 interfacial bond that are somebody's turn to do interior overlay film 33.Then, making the polyethylene terephthalate layer 333 interfacial bond thickness of this co-extruded films 34 by the first adhesion agent layer 32 again is 20 to 38 microns fluoro-containing copolymer film 31, can obtain the back board structure for solar module of the present utility model as shown in Figure 3.
Aforesaid fluoro-containing copolymer film refers to fluorine-containing polymer, for example, but be not limited to the copolymer (ETFE) of polyvinyl fluoride (Polyvinyl fluoride, PVF), Kynoar (Polyvinylidene fluoride, PVDF) or tetrafluoroethene and ethene.
Aforesaid gluing layer can increase the then property of thermoplastic elastic layer and polyethylene terephthalate bed boundary, and ethylene-vinyl alcohol copolymer (EVOH) resin that this gluing layer is generally the unsaturated carboxylic acid graft vistanex or has a high-gas resistance consists of.
In concrete the application, the back board structure for solar module of the present utility model be make thermoplastic elastic layer 131 interface (embodiment 1) of this back board structure or this back board structure co-extruded films thermoplastic elastic layer 231 interface (embodiment 2) or reduce the ethylene vinyl acetate copolymer layer 334(embodiment 3 of thickness) finish encapsulation with the mutual pressing of solar cell, sclerosis and assembling supervisor.
Use with the back board structure of eva film as encapsulating material compared to tradition, the utility model is to use the thermoplastic elastomer (s) replacement or reduce this eva film, has good mechanical properties, and when specifically being applied to the solar module encapsulation, the electrical erosion problem of avoiding acetic gas to cause.
Test case: use such as embodiment 1 to embodiment 3(Fig. 1 to shown in Figure 3) interior overlay film prepares the back board structure for solar module of the present utility model, find really to have better processability, the utility model is tested the mechanical property of overlay film in these for this reason, wherein, be according to ASTM D882 test fracture strength, tension intensity and percentage elongation.And in kind test the EVA film, its outcome record is in following table 1.
In addition, use QUV ultraviolet accelerated ageing equipment (ASTM G154), EVA film is placed in the accelerating chamber, making EVA film accelerated ageing generation decomposition produce acetic gas escapes, utilize gravimetric method to observe the changes in weight of accelerating front and back, can be used as the burst size of EVA acetic gas that film produces.
Table 1
Annotate: MD represents vertically;
CD represents laterally;
TPE represents that the thermoplastic elastic layer is (available from containing rhenium industrial corporation/TPE-003);
AD represents the second adhesion agent layer (from glue, code name AEM-V1);
Pet sheet shows polyethylene terephthalate layer (available from South Asia Plastics Company, optical-grade);
Tie represents that gluing layer is (available from Changchun artificial resin company/EV-3201V);
EVA represents ethylene vinyl acetate co-polymer layer (available from the poly-company of platform, vinyl acetate content＜10%).
According to the test result of table 1 as can be known, compared to the EVA film of comparative example 1, use interior overlay film of the present utility model really to have better processability, and reduce and produce acetic gas, can avoid acetic gas to cause the problem of bad electrical erosion.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Those of ordinary skills all can be under spirit of the present utility model and category, and above-described embodiment is modified and changed.Therefore, rights protection scope of the present utility model should be listed such as claim.
Claims (10)
1. back board structure that is used for solar module, it is characterized in that: comprise fluoro-containing copolymer film, interior overlay film and the first adhesion agent layer, described the first adhesion agent layer is formed between described fluoro-containing copolymer film and the described interior overlay film, and wherein, described interior overlay film includes the thermoplastic elastic layer.
2. the back board structure for solar module as claimed in claim 1, it is characterized in that: also comprise polyethylene terephthalate layer and the second adhesion agent layer, wherein, described polyethylene terephthalate layer is to be formed between described the first adhesion agent layer and described the second adhesion agent layer, and described thermoplastic elastic layer is to be formed on described the second adhesion agent layer.
3. the back board structure for solar module as claimed in claim 1, it is characterized in that: wherein, described interior overlay film also comprises gluing layer and polyethylene terephthalate layer, and described gluing layer is between described polyethylene terephthalate layer and described thermoplastic elastic layer, and the polyethylene terephthalate layer of described interior overlay film is bonding on the described fluoro-containing copolymer film by described the first adhesion agent layer.
4. the back board structure for solar module as claimed in claim 1, it is characterized in that: wherein, described interior overlay film also comprises the ethylene vinyl acetate copolymer layer, and described back board structure also comprises co-extruded films, described co-extruded films has gluing layer and polyethylene terephthalate layer, described co-extruded films between described the first adhesion agent layer and described interior overlay film, wherein, the thermoplastic elastic layer of the bonding described interior overlay film of gluing layer of described co-extruded films.
5. the back board structure for solar module as claimed in claim 1, it is characterized in that: wherein, described fluoro-containing copolymer film is pvf film, polyvinylidene fluoride film or tetrafluoroethene and ethylene copolymer film.
6. the back board structure for solar module as claimed in claim 1, it is characterized in that: wherein, the thickness of described thermoplastic elastic layer is 30 to 100 microns.
7. be used for as claimed in claim 2 or claim 3 the back board structure of solar module, it is characterized in that: wherein, the thickness of described interior overlay film is 185 to 370 microns.
8. the back board structure for solar module as claimed in claim 4, it is characterized in that: wherein, the thickness of described interior overlay film is 40 to 80 microns.
9. the back board structure for solar module as claimed in claim 4, it is characterized in that: wherein, the thickness of described co-extruded films is 160 to 280 microns.
10. the back board structure for solar module as claimed in claim 3, it is characterized in that: wherein, described gluing layer is unsaturated carboxylic acid graft polyolefin resin layer or ethylene-vinyl alcohol copolymer resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220548392 CN202847040U (en) | 2012-10-24 | 2012-10-24 | Rear panel structure for solar cell module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220548392 CN202847040U (en) | 2012-10-24 | 2012-10-24 | Rear panel structure for solar cell module |
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| CN202847040U true CN202847040U (en) | 2013-04-03 |
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| CN 201220548392 Expired - Fee Related CN202847040U (en) | 2012-10-24 | 2012-10-24 | Rear panel structure for solar cell module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715287A (en) * | 2014-01-08 | 2014-04-09 | 苏州尚善新材料科技有限公司 | Humidity-resistant and heat-resistant solar cell panel and manufacturing method thereof |
| CN103715288A (en) * | 2014-01-08 | 2014-04-09 | 苏州尚善新材料科技有限公司 | Humidity-resistant and heat-resistant solar cell panel and manufacturing method thereof |
| CN103722840A (en) * | 2014-01-08 | 2014-04-16 | 苏州尚善新材料科技有限公司 | Humidity-resisting solar cell backplate without adhesive and manufacturing method thereof |
| CN103770416A (en) * | 2012-10-24 | 2014-05-07 | 昆山雅森电子材料科技有限公司 | Backboard structure used for solar energy cell module |
-
2012
- 2012-10-24 CN CN 201220548392 patent/CN202847040U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770416A (en) * | 2012-10-24 | 2014-05-07 | 昆山雅森电子材料科技有限公司 | Backboard structure used for solar energy cell module |
| CN103715287A (en) * | 2014-01-08 | 2014-04-09 | 苏州尚善新材料科技有限公司 | Humidity-resistant and heat-resistant solar cell panel and manufacturing method thereof |
| CN103715288A (en) * | 2014-01-08 | 2014-04-09 | 苏州尚善新材料科技有限公司 | Humidity-resistant and heat-resistant solar cell panel and manufacturing method thereof |
| CN103722840A (en) * | 2014-01-08 | 2014-04-16 | 苏州尚善新材料科技有限公司 | Humidity-resisting solar cell backplate without adhesive and manufacturing method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20171024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |