CN102569470A - Solder strip of solar module - Google Patents
Solder strip of solar module Download PDFInfo
- Publication number
- CN102569470A CN102569470A CN2012100470652A CN201210047065A CN102569470A CN 102569470 A CN102569470 A CN 102569470A CN 2012100470652 A CN2012100470652 A CN 2012100470652A CN 201210047065 A CN201210047065 A CN 201210047065A CN 102569470 A CN102569470 A CN 102569470A
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- China
- Prior art keywords
- welding
- type groove
- solder strip
- shaped groove
- solar module
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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
Abstract
The invention relates to a solder strip of a solar module. V-shaped groove are formed on upper and lower surfaces of the solder strip, or a V-shaped groove is only formed on the soldered surface of the solder strip and a cell sheet; and the V-shaped groove is vertical to the length direction of the solder strip. The solder strip is 0.15-0.5 mm in thickness; the angle beta of the V-shaped groove is 20-75 degrees; and the vertical distance from the peak of the V-shaped groove on the upper surface to the peak of the V-shaped groove on the lower surface is 0.10-1.0 mm. The solder strip of the solar module has the following advantages that: through bending the solder strip, the internal stress of the solar cell sheet after being welded is largely reduced in the process of expanding with heat and contracting with cold so that the breaking rate of the solar cell and the hidden crack possibility of the solar module are reduced.
Description
Technical field
The present invention relates to the solar components welding.
Background technology
At present; Solar components connects solar battery sheet through welding; Because good welding performance and the electric conductivity of welding; Make each solar battery sheet after welding, form a complete electric path, thereby make electric current and voltage that solar components produces under the irradiation of sunray in welding, to transmit, reliable basis is provided for utilizing solar energy.Like Fig. 1, common welding structure comprises three parts, and the centre is a copper strips, and two-layer up and down is ashbury metal layer or silver layer, and its thickness only accounts for below 25% of gross thickness.
But in actual use, because thermal coefficient of expansion differs bigger between copper strips and the battery sheet, no matter after welding in the cooling procedure during still because of variation of ambient temperature; Both with the fillet of battery sheet along the position, produce very big stress, as shown in Figure 5; Add this stress point near battery sheet edge, stress distribution is very inhomogeneous, when surpassing battery sheet ability to bear; Battery sheet generation micro-crack, the serious battery sheet that causes breaks.
Summary of the invention
Technical problem to be solved by this invention is: a kind of solar components welding is provided, prevents to cause the battery sheet to break because of the welding welding.
The technical solution adopted for the present invention to solve the technical problems is: a kind of solar components welding, make the V-type groove on the upper and lower surface of welding, and perhaps only make the V-type groove at the solder side of welding and battery sheet, the V-type groove is perpendicular to the length direction of welding.
The thickness of welding is 0.15mm～0.5mm, and the angle beta of V-type groove is 20 °～75 °, and the vertical range of the crest of the V-type groove of crest to the lower surface of the V-type groove of upper surface is 0.10mm～1.0mm.
Preferably, the angle beta of V-type groove is 60 °, and the vertical range of the crest of the V-type groove of crest to the lower surface of the V-type groove of upper surface is 0.5mm.
The invention has the beneficial effects as follows: through the welding bending, in process of expansion and contraction, reduce the internal stress of solar battery sheet after welding greatly, thereby the fragmentation rate and the latent of solar components that reduce solar battery sheet split.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation after existing welding and the welding of battery sheet;
Fig. 2 is the partial enlarged drawing of welding of the present invention;
Fig. 3 is first kind of structural representation of welding of the present invention;
Fig. 4 is second kind of structural representation of welding of the present invention;
Fig. 5 is the third structural representation of welding of the present invention;
Fig. 6 is the 4th a kind of structural representation of welding of the present invention;
Fig. 7 is the structural representation after welding of the present invention and the welding of battery sheet;
Among the figure, 1. battery sheet, 2.V type groove.
Embodiment
Like Fig. 2,3,4, shown in 5 and 6, a kind of solar components welding is made V-type groove 2 on the upper and lower surface of welding, perhaps only makes the V-type groove at the solder side of welding and battery sheet, and V-type groove 2 is perpendicular to the length direction of welding.The thickness of welding is 0.15mm～0.5mm, and the angle beta of V-type groove 2 is 20 °～75 °, and the vertical range of the crest of the V-type groove 2 of crest to the lower surface of the V-type groove 2 of upper surface is 0.10mm～1.00mm.
Preferred embodiment is: the angle beta of V-type groove 2 is 60 °, and the vertical range of the crest of the V-type groove 2 of crest to the lower surface of the V-type groove 2 of upper surface is 0.5mm.
Claims (3)
1. a solar components welding is characterized in that: at the upper and lower surface making V-type groove (2) of described welding;
Perhaps only make V-type groove (2) at the solder side of welding and battery sheet (1);
V-type groove (2) is perpendicular to the length direction of welding.
2. solar components welding according to claim 1; It is characterized in that: the thickness of welding is 0.15mm～0.5mm; The angle beta of V-type groove (2) is 20 °～75 °, and the vertical range of the crest of the V-type groove (2) of crest to the lower surface of the V-type groove (2) of upper surface is 0.10mm～1.0mm.
3. solar components welding according to claim 2 is characterized in that: the angle beta of described V-type groove (2) is 60 °, and the vertical range of the crest of the V-type groove (2) of crest to the lower surface of the V-type groove (2) of upper surface is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100470652A CN102569470A (en) | 2012-02-28 | 2012-02-28 | Solder strip of solar module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100470652A CN102569470A (en) | 2012-02-28 | 2012-02-28 | Solder strip of solar module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102569470A true CN102569470A (en) | 2012-07-11 |
Family
ID=46414420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100470652A Pending CN102569470A (en) | 2012-02-28 | 2012-02-28 | Solder strip of solar module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102569470A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173330A1 (en) * | 2013-04-27 | 2014-10-30 | Shenzhen Byd Auto R&D Company Limited | Welding strip for solar battery and solar battery assembly |
| WO2015014218A1 (en) | 2013-07-31 | 2015-02-05 | 凡登（江苏）新型材料有限公司 | Photovoltaic welding strip |
| CN104868005A (en) * | 2015-05-08 | 2015-08-26 | 邝嘉豪 | Photovoltaic welding strip |
| CN104952956A (en) * | 2015-05-08 | 2015-09-30 | 邝嘉豪 | Photovoltaic solder strip with curved groove |
| WO2015172457A1 (en) * | 2014-05-14 | 2015-11-19 | 凡登（江苏）新型材料有限公司 | Highly-weldable high-efficiency photovoltaic welding strip |
| CN105185857A (en) * | 2015-09-11 | 2015-12-23 | 刘畅 | Photovoltaic solar cell assembly welding band |
| CN105355696A (en) * | 2015-11-23 | 2016-02-24 | 浙江昱辉阳光能源江苏有限公司 | High quality solar energy assembly for optimizing welding precision |
| WO2016049980A1 (en) * | 2014-09-29 | 2016-04-07 | 凡登（江苏）新型材料有限公司 | High-efficiency heterogeneous photovoltaic welding strip, and preparation method and production line for conductive baseband |
| CN109463014A (en) * | 2016-06-28 | 2019-03-12 | 京瓷株式会社 | Solar cell module |
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| JP3683700B2 (en) * | 1998-02-27 | 2005-08-17 | 京セラ株式会社 | Solar cell device |
| CN1812135A (en) * | 2005-01-24 | 2006-08-02 | 外山机械股份有限公司 | Lead structure |
| CN101675484A (en) * | 2007-05-09 | 2010-03-17 | 日立化成工业株式会社 | Conductor connection member, connection structure, and solar cell module |
| CN101820000A (en) * | 2009-02-27 | 2010-09-01 | 日立电线株式会社 | Solar cell lead, method of manufacturing the same, and solar cell using the same |
| CN201608186U (en) * | 2010-03-17 | 2010-10-13 | 晶科能源有限公司 | Tinned copper belt for solar battery component |
| CN102201471A (en) * | 2011-04-20 | 2011-09-28 | 昆明三利特科技有限责任公司 | Photovoltaic interconnector for absorbing stress |
| CN202004027U (en) * | 2011-04-30 | 2011-10-05 | 常州天合光能有限公司 | Solar battery module and welding tool for welding solder strip of module |
-
2012
- 2012-02-28 CN CN2012100470652A patent/CN102569470A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3683700B2 (en) * | 1998-02-27 | 2005-08-17 | 京セラ株式会社 | Solar cell device |
| CN1812135A (en) * | 2005-01-24 | 2006-08-02 | 外山机械股份有限公司 | Lead structure |
| CN101675484A (en) * | 2007-05-09 | 2010-03-17 | 日立化成工业株式会社 | Conductor connection member, connection structure, and solar cell module |
| CN101820000A (en) * | 2009-02-27 | 2010-09-01 | 日立电线株式会社 | Solar cell lead, method of manufacturing the same, and solar cell using the same |
| CN201608186U (en) * | 2010-03-17 | 2010-10-13 | 晶科能源有限公司 | Tinned copper belt for solar battery component |
| CN102201471A (en) * | 2011-04-20 | 2011-09-28 | 昆明三利特科技有限责任公司 | Photovoltaic interconnector for absorbing stress |
| CN202004027U (en) * | 2011-04-30 | 2011-10-05 | 常州天合光能有限公司 | Solar battery module and welding tool for welding solder strip of module |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173330A1 (en) * | 2013-04-27 | 2014-10-30 | Shenzhen Byd Auto R&D Company Limited | Welding strip for solar battery and solar battery assembly |
| WO2015014218A1 (en) | 2013-07-31 | 2015-02-05 | 凡登（江苏）新型材料有限公司 | Photovoltaic welding strip |
| US9716198B2 (en) | 2013-07-31 | 2017-07-25 | Fundant (Jiangsu) Advanced Materials Co., Ltd. | Photovoltaic interconnect wire |
| WO2015172457A1 (en) * | 2014-05-14 | 2015-11-19 | 凡登（江苏）新型材料有限公司 | Highly-weldable high-efficiency photovoltaic welding strip |
| WO2016049980A1 (en) * | 2014-09-29 | 2016-04-07 | 凡登（江苏）新型材料有限公司 | High-efficiency heterogeneous photovoltaic welding strip, and preparation method and production line for conductive baseband |
| TWI578557B (en) * | 2014-09-29 | 2017-04-11 | 凡登(江蘇)新型材料有限公司 | Method for producing efficient photovoltaic heterogeneous welding zone and conductive base band and production line thereof |
| CN104868005A (en) * | 2015-05-08 | 2015-08-26 | 邝嘉豪 | Photovoltaic welding strip |
| CN104952956A (en) * | 2015-05-08 | 2015-09-30 | 邝嘉豪 | Photovoltaic solder strip with curved groove |
| CN105185857A (en) * | 2015-09-11 | 2015-12-23 | 刘畅 | Photovoltaic solar cell assembly welding band |
| CN105185857B (en) * | 2015-09-11 | 2017-02-01 | 刘畅 | Photovoltaic solar cell assembly welding band |
| CN105355696A (en) * | 2015-11-23 | 2016-02-24 | 浙江昱辉阳光能源江苏有限公司 | High quality solar energy assembly for optimizing welding precision |
| CN109463014A (en) * | 2016-06-28 | 2019-03-12 | 京瓷株式会社 | Solar cell module |
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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: 20120711 |