CN102544144A - Solar module welding strip - Google Patents
Solar module welding strip Download PDFInfo
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- CN102544144A CN102544144A CN2011104595559A CN201110459555A CN102544144A CN 102544144 A CN102544144 A CN 102544144A CN 2011104595559 A CN2011104595559 A CN 2011104595559A CN 201110459555 A CN201110459555 A CN 201110459555A CN 102544144 A CN102544144 A CN 102544144A
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- welding
- metal forming
- solar module
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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 discloses a solar module welding strip, which is provided with at least two metal foils. A bonding layer with a conducting function which can bond the metal foils is arranged between every two adjacent metal foils. Tin alloy layers are respectively arranged on the external side surfaces of outermost metal foils. The solar module welding strip has the advantages that the internal stress of a solar cell after welding can be reduced, the sub-fissures of a solar module are reduced and the rate of finished products is improved.
Description
Technical field
The present invention relates to technical field of solar, especially a kind of solar components welding.
Background technology
Solar battery sheet connects through the solar components welding.Common welding structure comprises three parts, and the centre is a copper strips, and two-layer up and down is ashbury metal or silver layer, and its thickness only accounts for below 25% of gross thickness.Because good welding performance and the electric conductivity of welding, each solar battery sheet forms a complete electric path after connection, through welding transmission current and voltage.But in actual use, along with the attenuation of battery sheet thickness, thermal coefficient of expansion differs bigger between copper strips and the battery sheet, and the very big stress of both generations in the cooling procedure after welding causes battery sheet fragmentation rate higher, and it is more that later stage assembly latent splits.
Summary of the invention
The technical problem that the present invention will solve is: overcome the deficiency in the prior art, a kind of internal stress of solar battery sheet after welding that reduce is provided, the minimizing solar components is latent to be split, and improves the solar components welding of rate of finished products.
The technical solution adopted for the present invention to solve the technical problems is: a kind of solar components welding; Has double layer of metal paper tinsel at least; Be provided with the adhesive layer with conducting function that can metal forming be bonded together between the said adjacent two layers metal forming, the lateral surface of outermost metal paper tinsel is respectively arranged with the ashbury metal layer.
The metal forming number of plies is six layers, and metal forming is Copper Foil or aluminium foil.
The invention has the beneficial effects as follows: solar components welding provided by the invention has multilayer metal foil; Produce the temperature difference of multilayer and to the absorption of multilayer stress; The feasible stress that puts on the battery sheet is far smaller than the stress of stack pile single-layer metal welding, and the distortion of battery sheet reduces, and has reduced the fragmentation rate of solar battery sheet; Reduce the latent of solar components and split, improve rate of finished products.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a structural representation of the present invention.
1. metal formings, 2. adhesive layers, 3. ashbury metal layers among the figure
Embodiment
Combine accompanying drawing and preferred embodiment that the present invention is further described now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of solar components welding as shown in Figure 1; Has double layer of metal paper tinsel 1 at least; Be provided with the adhesive layer with conducting function 2 that can metal forming 1 be bonded together between the adjacent two layers metal forming 1, the lateral surface of outermost metal paper tinsel 1 is respectively arranged with ashbury metal layer 3.
Embodiment one: described solar components welding has six layers of metal forming 1, and metal forming 1 preferred thickness is the Copper Foil of 0.02mm, and adhesive layer 2 is a kind of conducting resinl.Evenly apply one deck conducting resinl in ground floor Copper Foil one side, above second layer Copper Foil is attached to, on second layer Copper Foil, apply one deck conducting resinl afterwards; Above the 3rd layer of Copper Foil be attached to, be the 4th layer, layer 5, layer 6 successively, wait six layers of Copper Foil to post after; Heat through equipment, six layers of Copper Foil are bonded together, then through cleaning surfaces; Immerse molten tin bath, the molten tin bath temperature is controlled at 240 degree, and the welding surface is the even immersion plating last layer ashbury metal layer 3 of quilt when the alloy electroplating bath of process fusion.
Embodiment two: described solar components welding has six layers of metal forming 1, and metal forming 1 is the four layers of Copper Foil of preferred thickness 0.02mm and the two-layer aluminium foil of 0.02mm, and adhesive layer 2 is a kind of conducting resinl.Evenly apply one deck conducting resinl in ground floor Copper Foil one side, above second layer Copper Foil is attached to, on second layer Copper Foil, apply one deck conducting resinl afterwards; Above the ground floor aluminium foil is attached to, be second layer aluminium foil, the 3rd layer of Copper Foil, the 4th layer of Copper Foil successively, wait six layers of metal forming 1 to post after; Heat through equipment; Six layers of metal forming 1 are bonded together,, immerse molten tin bath then through cleaning surfaces; The molten tin bath temperature is controlled at 240 degree, and the welding surface is uniform immersion plating last layer ashbury metal layer 3 when the alloy electroplating bath of process fusion.
Above-mentioned ashbury metal layer 3 also can adopt silver-plated mode immersion plating last layer silver layer.
In the cooling procedure of solar components welding after welding, be in outermost metal forming 1 and contact, cool at first with air with the battery sheet; Relative ground floor metal forming 1, second layer temperature is higher, ground floor metal forming 1 contraction that turns cold; The second layer receives stress; But because the temperature difference is less, and the buffering of intermediate adhesion layer 2, stress is little a lot.In like manner through the 3rd layer, the 4th layer etc., that layer of exchange premium battery sheet to the last, last one deck cooling is shunk; With stress on the battery sheet; Because the temperature difference of multilayer and the absorption of multilayer stress, put on the stress that stress on the battery sheet is far smaller than stack pile single-layer metal welding, the distortion of battery sheet reduces; Reduced the fragmentation rate of solar battery sheet, reduced the latent of solar components and split.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. solar components welding; It is characterized in that: have double layer of metal paper tinsel (1) at least; Be provided with the adhesive layer with conducting function (2) that can metal forming (1) be bonded together between the described adjacent two layers metal forming (1), the lateral surface of outermost metal paper tinsel (1) is respectively arranged with ashbury metal layer (3).
2. solar components welding according to claim 1 is characterized in that: described metal forming (1) number of plies is six layers.
3. solar components welding according to claim 1 is characterized in that: described metal forming (1) is Copper Foil or aluminium foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104595559A CN102544144A (en) | 2011-12-31 | 2011-12-31 | Solar module welding strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104595559A CN102544144A (en) | 2011-12-31 | 2011-12-31 | Solar module welding strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102544144A true CN102544144A (en) | 2012-07-04 |
Family
ID=46350592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104595559A Pending CN102544144A (en) | 2011-12-31 | 2011-12-31 | Solar module welding strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102544144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505415A (en) * | 2014-12-25 | 2015-04-08 | 魏磊 | Copper-aluminum composite type photovoltaic welding strip for solar cell |
| CN104752537A (en) * | 2015-02-16 | 2015-07-01 | 保定市易通光伏科技有限公司 | Photovoltaic cell and photovoltaic component |
| CN105966047A (en) * | 2016-06-06 | 2016-09-28 | 苏州安洁科技股份有限公司 | Laminating technology suitable for large-size double-layer aluminum product |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957479A (en) * | 2004-05-21 | 2007-05-02 | 株式会社新王材料 | Electrode wire for solar battery |
-
2011
- 2011-12-31 CN CN2011104595559A patent/CN102544144A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957479A (en) * | 2004-05-21 | 2007-05-02 | 株式会社新王材料 | Electrode wire for solar battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505415A (en) * | 2014-12-25 | 2015-04-08 | 魏磊 | Copper-aluminum composite type photovoltaic welding strip for solar cell |
| CN104505415B (en) * | 2014-12-25 | 2016-06-01 | 深圳市华光达科技有限公司 | Copper-aluminum composite solar cell photovoltaic welding |
| CN104752537A (en) * | 2015-02-16 | 2015-07-01 | 保定市易通光伏科技有限公司 | Photovoltaic cell and photovoltaic component |
| CN105966047A (en) * | 2016-06-06 | 2016-09-28 | 苏州安洁科技股份有限公司 | Laminating technology suitable for large-size double-layer aluminum product |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |