CN102938427A - Photovoltaic battery pack - Google Patents
Photovoltaic battery pack Download PDFInfo
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- CN102938427A CN102938427A CN2012104954166A CN201210495416A CN102938427A CN 102938427 A CN102938427 A CN 102938427A CN 2012104954166 A CN2012104954166 A CN 2012104954166A CN 201210495416 A CN201210495416 A CN 201210495416A CN 102938427 A CN102938427 A CN 102938427A
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- photovoltaic cell
- cell component
- back plate
- aluminium
- conversion unit
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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 invention relates to a photovoltaic battery pack, which includes a photovoltaic conversion unit, an encapsulating material of a protection circuit, a casing and other matched structures; an aluminium alloy back plate is arranged between the photovoltaic conversion unit and the encapsulating material of the protection circuit; and the aluminium alloy back plate used by the photovoltaic battery pack comprises the following components in percentage by weight: 1.3-1.5% of iron, 0.5-1.0% of nickel, 0.001-0.003% of vanadium, and the balance of aluminium. Besides improving the malleability of the aluminium alloy, the technical scheme can reduce pin holes and lower weight and cost.
Description
Technical field
The invention belongs to the photovoltaic solar field, particularly relate to a kind of photovoltaic cell component.
Background technology
The photovoltaic cell that solar energy is converted to electrical energy devices is that one of clean electric power generation device is subject to increasing attention.The problem that photovoltaic cell component now need to solve is also many, not only need to improve aspect photoelectric conversion efficiency, and other associated component also needs to improve.
The primary structure of photovoltaic cell includes encapsulating material, shell and other supporting structure of photoelectric conversion unit, protective circuit.For luminous efficiency and the useful life that guarantees photoelectric conversion unit, prevent that photoelectric conversion unit from the reasons such as circuit electric leakage, corrosion occurring and causing luminous efficiency to descend and the lost of life, require the backboard of photoelectric conversion unit when keeping some strength, also require to have high barrier property, namely intercept steam and contact with photoelectric conversion unit, prevent from occurring in photoelectric conversion unit inside the generation of electrochemical reaction.
What the backboard in the existing photovoltaic cell component used is the pure aluminum metal sheet, and there is the pin hole problem in the pure aluminum metal sheet when thickness is lower than 20 microns, and this situation can the grievous injury photoelectric conversion unit.
In order to reduce the performance that occurs affecting photoelectric conversion unit because of the backboard pin hole, prior art proposes, a certain proportion of ferro element will be added in the fine aluminium, utilize compactness and the high ductibility of ferro element to remedy the defective of seal aluminium, even also propose in such aluminium alloy, can also contain the elements such as magnesium, manganese, copper, silicon, zinc and titanium of trace.But find by actual the use, although the adding of ferro element can improve the ductility of aluminium, its undercapacity.
About containing the problem of other element in the aluminium, find by practical application, although titanium elements can improve the refinement of crystal grain in the alloy, and the intensity of raising aluminium alloy, its ductility is not high, when certain thickness, good light-alloy element, but when needing thinner alloy, not high to the improvement of compactness, in conjunction with the not high problem of its ductility, titanium elements is to also not obvious as the aluminium alloy that improves as photovoltaic cell component again.
For copper, in aluminium alloy, can improve the compactness that also can keep aluminium alloy in the ductility but copper add the cost that affiliation increases the weight of backboard and improves aluminium alloy.
Summary of the invention
The objective of the invention is by the aluminum alloy materials that is used for photovoltaic solar assembly backboard is proposed to improve technical scheme, this technical scheme can when improve aluminium alloy ductility, reduce the appearance of pin hole, and can reduce weight and cost.
The present invention is achieved by the following technical solutions:
A kind of photovoltaic cell component includes encapsulating material, shell and other supporting structure of photoelectric conversion unit, protective circuit; Between the encapsulating material of described photoelectric conversion unit and protective circuit, be provided with aluminum alloy back plate; Described back plate thickness is between the 5-40 micron.
Preferred back plate thickness is the 10-15 micron.
Photovoltaic cell component aluminum alloy back plate, its composition be by weight percentage, the vanadium of the iron of 1.3-1.5%, the nickel of 0.5-1.0%, 0.001-0.003%, and surplus is aluminium.
As further improvement, described photovoltaic cell component aluminum alloy back plate, its composition be by weight percentage, 1.3% iron, 0.5% nickel, 0.001% vanadium, and surplus is aluminium.
As further improvement, described photovoltaic cell component aluminum alloy back plate, its composition be by weight percentage, 1.5% iron, 1.0% nickel, 0.003% vanadium, and surplus is aluminium.
The beneficial effect that the present invention compares with prior art is:
Technical scheme can when improve aluminium alloy ductility, reduce the appearance of pin hole, and can reduce weight and cost; And in the application's material, can stop the generation of electrochemical reaction.
Description of drawings
Fig. 1 is photovoltaic cell component structural representation of the present invention.
Embodiment
Below describe technical scheme of the present invention in detail by specific embodiment, should be understood that, following specific embodiment only can be used for explaining the present invention and can not be interpreted as to be limitation of the present invention.
With reference to shown in Figure 1, a kind of photovoltaic cell component includes encapsulating material 11, shell 14 and other supporting structure of photoelectric conversion unit 12, protective circuit; Shell 14 is used for installing and the protection photovoltaic cell, and in the present invention, shell 14 still is prior art, and described other supporting structure includes terminal box, other all parts that need at photovoltaic cell such as wire, and these structures also are prior art.In the present invention, the backboard that is improved to photovoltaic cell that carries out improves, and other still is prior art.
Between the encapsulating material 11 of described photoelectric conversion unit 12 and protective circuit, be provided with aluminum alloy back plate 13; Described back plate thickness is between the 5-40 micron.Preferred back plate thickness is the 5-10 micron.
In the present invention, the encapsulating material of protective circuit is the modification of carrying out weather resisteant and moisture-proof for can support the dielectric resin material of backboard to get final product but require this resin material.
Embodiment 1
Photovoltaic cell component back veneer material, its composition be by weight percentage, 1.3% iron, 0.5% nickel, 0.001% vanadium, and surplus is aluminium.The method of its processing aluminium alloy is identical with prior art, therefore is not elaborated.By the resulting aluminum alloy materials of such scheme, when the aluminum alloy sheet that is processed as 20 microns, by electron microscope observation, find pin hole seldom, can reach the requirement of photovoltaic element fully.
Embodiment 2
Photovoltaic cell component back veneer material, its composition be by weight percentage, 1.5% iron, 1.0% nickel, 0.003% vanadium, and surplus is aluminium.The method of its processing aluminium alloy is identical with prior art, therefore is not elaborated.By the resulting aluminum alloy materials of such scheme, when the aluminum alloy sheet that is processed as 20 microns, by electron microscope observation, find pin hole seldom, can reach the requirement of photovoltaic element fully.
Embodiment 3
Photovoltaic cell component back veneer material, its composition be by weight percentage, 1.4% iron, 0.8% nickel, 0.002% vanadium, and surplus is aluminium.The method of its processing aluminium alloy is identical with prior art, therefore is not elaborated.By the resulting aluminum alloy materials of such scheme, when the aluminum alloy sheet that is processed as 20 microns, by electron microscope observation, find pin hole seldom, can reach the requirement of photovoltaic element fully.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (5)
1. photovoltaic cell component includes encapsulating material, shell and other supporting structure of photoelectric conversion unit, protective circuit; It is characterized in that: between the encapsulating material of described photoelectric conversion unit and protective circuit, be provided with aluminum alloy back plate; Described back plate thickness is between the 5-40 micron.
2. photovoltaic cell component according to claim 1, it is characterized in that: back plate thickness is the 10-15 micron.
3. photovoltaic cell component according to claim 1 is characterized in that: photovoltaic cell component aluminum alloy back plate, its composition be by weight percentage, the vanadium of the iron of 1.3-1.5%, the nickel of 0.5-1.0%, 0.001-0.003%, and surplus is aluminium.
4. photovoltaic cell component according to claim 3 is characterized in that: described photovoltaic cell component aluminum alloy back plate, its composition be by weight percentage, 1.3% iron, 0.5% nickel, 0.001% vanadium, and surplus is aluminium.
5. photovoltaic cell component according to claim 1 is characterized in that: described photovoltaic cell component aluminum alloy back plate, its composition be by weight percentage, 1.5% iron, 1.0% nickel, 0.003% vanadium, and surplus is aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495416.6A CN102938427B (en) | 2012-11-27 | 2012-11-27 | Photovoltaic battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495416.6A CN102938427B (en) | 2012-11-27 | 2012-11-27 | Photovoltaic battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102938427A true CN102938427A (en) | 2013-02-20 |
| CN102938427B CN102938427B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210495416.6A Active CN102938427B (en) | 2012-11-27 | 2012-11-27 | Photovoltaic battery pack |
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| CN (1) | CN102938427B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886840A (en) * | 2003-11-27 | 2006-12-27 | 京瓷株式会社 | Solar cell module |
| JP2008081794A (en) * | 2006-09-28 | 2008-04-10 | Showa Denko Kk | Aluminum alloy, and thin film solar cell substrate |
| WO2011097676A1 (en) * | 2010-02-15 | 2011-08-18 | Csg Solar Ag | Contact composition |
| CN102168215A (en) * | 2010-02-26 | 2011-08-31 | 富士胶片株式会社 | Aluminum alloy plate and producing method thereof |
| CN102365756A (en) * | 2009-03-30 | 2012-02-29 | 琳得科株式会社 | Protective sheet for the rear surface of a solar cell module, and solar cell module provided therewith |
| US20120055588A1 (en) * | 2010-09-08 | 2012-03-08 | Alcoa Inc. | 7xxx aluminum alloys, and methods for producing the same |
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2012
- 2012-11-27 CN CN201210495416.6A patent/CN102938427B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886840A (en) * | 2003-11-27 | 2006-12-27 | 京瓷株式会社 | Solar cell module |
| JP2008081794A (en) * | 2006-09-28 | 2008-04-10 | Showa Denko Kk | Aluminum alloy, and thin film solar cell substrate |
| CN102365756A (en) * | 2009-03-30 | 2012-02-29 | 琳得科株式会社 | Protective sheet for the rear surface of a solar cell module, and solar cell module provided therewith |
| WO2011097676A1 (en) * | 2010-02-15 | 2011-08-18 | Csg Solar Ag | Contact composition |
| CN102168215A (en) * | 2010-02-26 | 2011-08-31 | 富士胶片株式会社 | Aluminum alloy plate and producing method thereof |
| US20120055588A1 (en) * | 2010-09-08 | 2012-03-08 | Alcoa Inc. | 7xxx aluminum alloys, and methods for producing the same |
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| Publication number | Publication date |
|---|---|
| CN102938427B (en) | 2015-03-25 |
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Address after: Wang town Yinzhou District oak village 315131 Zhejiang city of Ningbo Province cable Patentee after: Ningbo Bei Da new forms of energy Science and Technology Co., Ltd. Address before: 315131 Zhejiang city of Ningbo Province Wang town Yinzhou District Industrial Park Beida oblique oak Patentee before: Ningbo Beida New Energy Technology Co., Ltd. |
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Address after: Wang town Yinzhou District oak village 315131 Zhejiang city of Ningbo Province cable Patentee after: Ningbo Beida New Energy Technology Co., Ltd. Address before: Wang town Yinzhou District oak village 315131 Zhejiang city of Ningbo Province cable Patentee before: Ningbo Bei Da new forms of energy Science and Technology Co., Ltd. |
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