CN85101373A - Solar battery apparatus - Google Patents
Solar battery apparatus Download PDFInfo
- Publication number
- CN85101373A CN85101373A CN 85101373 CN85101373A CN85101373A CN 85101373 A CN85101373 A CN 85101373A CN 85101373 CN85101373 CN 85101373 CN 85101373 A CN85101373 A CN 85101373A CN 85101373 A CN85101373 A CN 85101373A
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- CN
- China
- Prior art keywords
- film
- resin
- solar module
- mentioned
- moisture permeability
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- 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.)
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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 solar module that the present invention discloses is characterized by many solar battery elements that have electrical connection mutually are embedded in the resin, on a surface of this fat substrate is set, and the film that contains low moisture permeability rete at least is set on another surface.Owing to contain low moisture permeability rete, invade resin so can prevent moisture.
Description
The present invention relates to solar module, particularly have the solar module that anti-outside moisture is invaded structure.
In general solar module, utilize resin that many solar modules that have electrical connection mutually are embedding, and be fixed on the substrate, the solar module of Gou Chenging is subjected to the irradiation of light such as sunlight usually and generates electricity like this.In actual applications, be not subjected to the influence of environmental change in order to protect cell device, its countermeasure is a major issue always.
Solar module with said structure can be divided into two types, and a kind of is that light such as sunlight are injected by resin one side of embedding solar battery element, and (with reference to Fig. 1), another kind are that light such as sunlight are injected (with reference to Fig. 2) by substrate one side.Below lifting wherein, two examples describe.
Fig. 1 is the profile of the solar module that always uses; the solar battery element 1 that has electrical connection mutually; 1 ... substrate (2) with formations such as iron plates is a bearing; and utilize PVB(polyvinyl alcohol butyral) or the rare copolymer of EVA(ethene acetic acid second) etc. embedding being fixed up of potting resin (3); the surface of this potting resin (3) is coated with weatherability transparent membrane (4); seal protection gets up in addition, in case the influence of external environment condition.
In this example, light such as sunlight is injected solar module by weatherability transparent membrane (4) one sides.
The solar module of above-mentioned the sort of existing structure, its emphasis mainly is weatherability, in order to adapt to this requirement, in structure, research and development are constantly being carried out in aspects such as skin covering of the surface and potting resin material, owing to consider the simplification of economy and engineering management etc., potting resin adopts above-mentioned PVB or EVA resin.
PVB that the potting resin of solar cell encapsulation assembly is used or EVA resin have such character, in case promptly moisture is invaded, are determined that by the characteristic of resin material it just absorbs these moisture and is difficult for discharge.Therefore, if invade moisture in the resin, then the resin gonorrhoea that also can become itself is unclear, and transparency suffers damage, and its result causes reducing the incident light of solar battery element.On the other hand, can see that moisture is partly invaded its result and caused the problems referred to above by being arranged on weatherability transparent membrane on the potting resin.
Utilize the solar module of above-mentioned weatherability transparent film laminate structure only to consider its weatherability, and moisture issue is not had enough attentions, not only long-term use can cause the rotten of resin, cause the minimizing of incident light, and moisture can make that also solar battery element itself causes damage.
Below with reference to Fig. 2, the example that light such as sunlight are injected solar module from substrate one side describes.
As shown in Figure 2, always by glass (11), PVB resin or EVA resin (12), in the laminated construction that solar battery element (13) and notacoria (14) constitute, because above-mentioned notacoria has formed the three-decker that contains weatherability film (14a), metal forming (14b) and weatherability films (14a) such as fluorine film, invade PVB resin or EVA resin (12) so can prevent moisture.
But, in above-mentioned existing solar module, because notacoria (14) has adopted metal forming (14b), so have the relatively poor shortcoming of voltage-resistent characteristic (insulating properties).
The invention provides the shortcoming of eliminating in the above-mentioned existing apparatus, promptly do not reduce weatherability, can improve the solar battery apparatus of its moisture resistance again.
The purpose of this invention is to provide and to prevent that moisture from invading PVB tool fat or EVA resin etc., have the solar module of good voltage-resistent characteristic again.
Other purpose of the present invention and range of application can fully be understood from following elaboration.Yet should know, owing to can be well understood to during from then on many variations that do not break away from spirit and scope of the invention and distortion describe in detail one of ordinary skill in the art, so its describe in detail and special example by graphic extension, and provide the applications well example.
In order to achieve the above object, solar module of the present invention is to constitute like this, and it is embedding promptly to utilize resin will have the solar battery element of electrical connection mutually, on the one side of this resin substrate is set, another side is coated with film, and particularly above-mentioned film contains the thin layer of low moisture permeability at least.
Can fully understand the present invention from following elaborating, accompanying drawing only plays the diagram effect, therefore the present invention is not had restricted.
Fig. 1 is the profile of existing solar module.
Fig. 2 is the profile of another existing solar module.
Fig. 3 is the solar module profile of first embodiment of the invention.
Fig. 4 is the solar module profile of second embodiment of the invention.
Fig. 5 is the solar module profile of third embodiment of the invention.
Fig. 6 is the solar module profile of fourth embodiment of the invention.
Fig. 7 is the solar module profile of fifth embodiment of the invention.
Fig. 8 is the solar module profile of sixth embodiment of the invention.
Fig. 1 is the profile of one embodiment of the present of invention solar module.Utilization is by PVB(polyvinyl alcohol butyral) or EVA(second release acetic acid second and release copolymer) etc. the transparent potting resin (103) that constitutes, many solar battery elements (101) that have electrical connection mutually are embedding, and device is on the substrate (102) that iron plate etc. constitutes.On the potting resin (103) that covers solar battery element (101) sensitive surface, again according to the present invention coated with skin covering of the surface (105).Promptly on potting resin (103), be superimposed with by weatherability transparent membrane (105
1), low moisture permeability transparent membrane (105
2) and weatherability transparent membrane (105
3) the three-decker surface film (105) that constitutes.Because at weatherability film (105
1) and (105
31) between sandwich the transparent membrane (105 of low moisture permeability
2), so can prevent the intrusion of outside moisture.
In the above-described embodiments, the weatherability film can adopt and contain fluorine film, polyester film or propylene film etc., and low moisture permeability film can adopt chloroethene to release resin, 4 fluorine second are released resin etc.
As shown in Figure 4, replace the skin covering of the surface of three-decker in the foregoing description, can directly go up coated with the hyaline membrane (106 that hangs down moisture permeability at potting resin (103)
1), and at this hyaline membrane (106
1) weatherability hyaline membrane (106 upward superposes
2), thereby can constitute two-layer structure.
Have, can reduce some and mainly expect in weatherability and improve in the purposes of moisture resistance, as shown in Figure 5, can form such structure, promptly the transparent membrane (107) of only using low moisture permeability covers on the potting resin (103) as skin covering of the surface.
In the solar module 1-3 of above theory embodiment, light such as sunlight are injected along the direction shown in the arrow A.Therefore, the sensitive surface of solar battery element should be perpendicular to arrow A, and settles towards the top of drawing.
Used substrate is not limited only to adopt lighttight material in the foregoing description, also can adopt the material of printing opacity.
The present invention utilizes the laminated outer surface that constitutes solar light irradiation of transparent membrane in solar battery apparatus, owing to contain the transparent membrane of the low moisture permeability of one deck in its skin covering of the surface at least, so can make solar cell prevent moisture, can prevent that again the resin of filling solar battery element from going bad, thereby can be kept the solar battery apparatus of high reliability for a long time.
Below with reference to Fig. 6 the 4th embodiment of the present invention is described.(201) be light-transmitting substrates such as glass; (202) be that PVB resin or EVA resin etc. are filled tool fat, (203) are the solar cells that is made of many solar battery elements that have electrical connection mutually, and (204) are notacorias.
The structure of the solar module of Fig. 6-shown in Figure 8 can make light such as sunlight inject the top along the direction shown in the arrow A from light-transmitting substrate, and is radiated on the sensitive surface of solar battery element.
Above-mentioned notacoria (204) is at low saturating wet humidity film (204 such as vinyl chloride resin, 4 fluorine ethylene resins
c) both sides stacks contain weatherability film (204a), (204a) such as fluorine film, polyester film, propylene film, form three-decker.
Solar module according to said structure, because the both sides of low moisture permeability film (204c) had all both had good weatherability coated with weatherability film (204a), (204a) in the notacoria (204), can prevent moisture intrusion PVB resin or EVA resin (202) again.In addition, owing to do not contain metal forming in the notacoria (204), its voltage-resistent characteristic is good, because have good voltage-resistent characteristic, can improve withstand voltage again, needn't handle especially not shown aluminum enclosure and encapsulant again, thereby can reduce cost.
Fig. 7, Fig. 8 illustrate the example of distortion, and solar module shown in Figure 7 forms notacoria (202) by weatherability film (204a) and low moisture permeability film (204c) two-layer structure.Solar module shown in Figure 8 hangs down moisture permeability film (204c) as notacoria (204) with one deck.These two kinds of solar modules are invaded potting resins (202) such as PVB resin or EVA resin because low moisture permeability film (204c) is all arranged so can prevent moisture.Do not use metal forming owing in the notacoria (204) in addition, so have good voltage-resistent characteristic.
Can know by above explanation and to know,, not use metal forming in the notacoria, and adopt the film of low moisture permeability, thereby can improve insulating properties, and can prevent that moisture from invading PVB resin and EVA resin etc. according to the present invention.
To the skin covering of the surface that embodiment solar module among Fig. 4 is adopted, the laminated layer sequence of its low moisture permeability transparent membrane and weatherability transparent membrane can exchange.
To the notacoria that embodiment solar module among Fig. 7 is adopted, the laminated layer sequence of its low moisture permeability film and weatherability film also can exchange.
By above explanation, can find out significantly that the present invention can have many variations, the variation of these forms does not break away from essence of the present invention and scope, and all these forms all is considered as being included in the scope of following claim.
Claims (10)
1, solar module, its characteristics are provided with substrate for many solar battery elements that have electrical connection mutually are embedded in the resin on a surface of this resin, make the film that contains low moisture permeability rete at least on another surface.
2, according to claim 1 described solar module, it is characterized by above-mentioned film and contain the weatherability film.
3, according to claim 2 described solar modules, it is characterized by the film that above-mentioned film is a three-decker, promptly at the both sides of low moisture permeability film configuration weatherability film.
4, according to claim 1 described solar module, its low moisture permeability rete is released resin by vinyl chloride resin or 4 fluorine second and is formed.
5, according to claim 2 described solar modules, above-mentioned weatherability film contain fluorine film, polyester film or propylene film form.
6, according to claim 1 described solar module, above-mentioned resin is the PVB(polyvinyl butyral resin) resin or EVA(ethylene-vinyl acetate copolymer) resin.
7, solar module is characterized by, and in the embedding solar battery element and the device of this resin surface coated with transparent membrane that has electrical connection mutually by resin, above-mentioned transparent membrane contains low moisture permeability meals layer at least.
8,, it is characterized by above-mentioned transparent membrane and on low moisture permeability film, superpose the weatherability transparent membrane and form according to claim 7 described solar modules.
9, solar module is characterized by in the solar module of the layered structure with glass, PVB resin or EVA resin, notacoria, does not have metal forming in the above-mentioned notacoria, and contains low moisture permeability film at least.
10, solar module is characterized by in above-mentioned claim 9 described solar modules, and above-mentioned notacoria is the three-decker film, promptly at the both sides of low moisture permeability film configuration weatherability film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101373A CN85101373B (en) | 1985-04-01 | 1985-04-01 | Solar battery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101373A CN85101373B (en) | 1985-04-01 | 1985-04-01 | Solar battery apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101373A true CN85101373A (en) | 1987-01-17 |
| CN85101373B CN85101373B (en) | 1988-12-07 |
Family
ID=4791804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101373A Expired CN85101373B (en) | 1985-04-01 | 1985-04-01 | Solar battery apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85101373B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498289B1 (en) | 1996-08-08 | 2002-12-24 | Canon Kabushiki Kaisha | Solar battery module and roofing material incorporating it |
| CN104992995A (en) * | 2015-05-26 | 2015-10-21 | 张家港康得新光电材料有限公司 | Composite membrane, preparation method thereof and solar cell assembly |
-
1985
- 1985-04-01 CN CN85101373A patent/CN85101373B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498289B1 (en) | 1996-08-08 | 2002-12-24 | Canon Kabushiki Kaisha | Solar battery module and roofing material incorporating it |
| CN104992995A (en) * | 2015-05-26 | 2015-10-21 | 张家港康得新光电材料有限公司 | Composite membrane, preparation method thereof and solar cell assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101373B (en) | 1988-12-07 |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |