CN203134836U - Special-shaped welding strip for back contact solar cell piece - Google Patents
Special-shaped welding strip for back contact solar cell piece Download PDFInfo
- Publication number
- CN203134836U CN203134836U CN 201320053563 CN201320053563U CN203134836U CN 203134836 U CN203134836 U CN 203134836U CN 201320053563 CN201320053563 CN 201320053563 CN 201320053563 U CN201320053563 U CN 201320053563U CN 203134836 U CN203134836 U CN 203134836U
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- China
- Prior art keywords
- special
- solar cell
- welding
- band body
- back contact
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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 utility model discloses a special-shaped welding strip for back contact solar cell piece. The special-shaped welding strip comprises a special-shaped welding strip body in the shape of a Chinese character ''wang''; the central part of the special-shaped welding strip body is in the shape of a Chinese character ''zhong'' and is provided with a through hole; and the special-shaped welding strip body is paved on a back side of a back contact solar cell piece, which is subjected to series welding through the special-shaped welding strip body. The utility model has the beneficial effect that the arrangement of the through hole and groove reduces stress after welding, rupture of the cell piece and loss of the solar cell piece, and increases efficiency of a photovoltaic assembly; the welding strip with larger width reduces the resistor and power consumption of the assembly, and increases photoelectric conversion efficiency of the assembly; and as the welding strip is paved on the back side of the cell piece, the service life of the welding strip is prolonged; and the right side of the cell is beautiful, thereby satisfying aesthetic demand of the consumers.
Description
Technical field
The utility model relates to the solar battery sheet technical field, is specifically related to a kind of special-shaped welding for the back contact solar cell sheet.
Background technology
Back contact solar cell sheet sensitive surface does not have welding, also dereliction grid line and secondary grid line, thereby sensitive surface lacks than the area that traditional common welding covers, photoelectric conversion efficiency will be apparently higher than conventional assembly, after solar battery sheet connects by welding, by the welding transmission current, but along with the attenuation day by day of battery sheet thickness, the stress that is produced by the rising-heat contracting-cold before and after welding between welding and the battery sheet is easy to cause the battery sheet to break, significantly increase the loss of photovoltaic module, and the welding in the conventional photovoltaic assembly is penetrated by illumination, and the useful life of welding is lower.
The utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of special-shaped welding for the back contact solar cell sheet, reduces the stress after welding, and reduces breaking of battery sheet, improve the photoelectric conversion efficiency of photovoltaic module, prolong the useful life of welding.
For achieving the above object, the technical solution of the utility model is as follows: a kind of special-shaped welding for the back contact solar cell sheet, comprise the shape welding band body, described shape welding band body is king's font, place, described shape welding band body centre position is middle font, the place is provided with a through hole in the centre position, and described shape welding band body is layed in the back side of back contact solar cell sheet, and the back contact solar cell sheet is by described shape welding band body series welding.
Preferably, the symmetrical centre place, two ends of described shape welding band body is provided with U-shaped or the V-type groove.
Preferably, the two ends of described shape welding band body all are arranged with two through holes, and place, described shape welding band body centre position through hole circumferentially is arranged with four through holes.
Preferably, the thickness of described shape welding band body is 0.2mm-0.5mm.
Preferably, the width of described shape welding band body is more than 1.8mm reaches.
Preferably, the edge of described shape welding band body is provided with chamfering.
Preferably, described shape welding band body is for being coated with the tin copper strips.
Adopt the beneficial effect of above technical scheme to be: owing to be provided with through hole and groove, to reduce the stress after the welding, reduced breaking of battery sheet, reduced the loss of solar battery sheet; Because the width of welding broadens, and has reduced resistance, improved the photoelectric conversion efficiency of assembly when reducing component power consumption; Because welding is layed in the cell back face, has prolonged the useful life of welding, and battery front side homogeneous, attractive in appearance, satisfy consumer's aesthetic requirement.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, to do to introduce simply to the accompanying drawing of required use in the embodiment technical description below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the shape welding band structure schematic diagram that first kind of execution mode of the utility model is used for the back contact solar cell sheet.
Fig. 2 is the shape welding band structure schematic diagram that second kind of execution mode of the utility model is used for the back contact solar cell sheet.
Fig. 3 is the connection diagram of first kind of execution mode welding of the utility model and battery sheet.
Fig. 4 is the connection diagram of second kind of execution mode welding of the utility model and battery sheet.
The represented corresponding component title of numeral among the figure:
1, shape welding band body 2, V-type groove 3, through hole 4, U-shaped groove 5, the back contact solar cell sheet back side.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in figures 1 and 3, a kind of special-shaped welding for the back contact solar cell sheet, comprise shape welding band body 1, shape welding band body 1 is for being coated with the tin copper strips, shape welding band body 1 is king's font, place, shape welding band body 1 centre position is middle font, the place is provided with a through hole 3 in the centre position, be provided with U-shaped groove 4 at symmetrical centre place, the two ends of shape welding band body 1, the edge of shape welding band body 1 is provided with chamfering, the abnormity welding is according to the size of battery sheet, width be made as 1.8mm and more than, thickness is made as 0.2mm-0.5mm, shape welding band body 1 is layed in the back contact solar cell sheet back side 5, two back contact solar cell sheet back sides 5 are respectively equipped with 3 solder joints, shape welding band body 1 by solder joint with two back contact solar cell sheet series weldings, according to same series welding method with back contact solar cell sheet series welding in twos, again the battery chip module is encapsulated, because shape welding band body 1 is layed in the back contact solar cell sheet back side 5, make and to accept more sunlight in the battery sheet unit interval, improve the photoelectric conversion efficiency 5%-6% of photovoltaic module, and special-shaped welding is not subjected to irradiation of sunlight, prolonged the useful life of welding, the battery front side homogeneous, attractive in appearance, satisfy consumer's aesthetic requirement, through hole on the shape welding band body 1 and U-shaped groove and chamfering can reduce the stress after the welding, reduce breaking of battery sheet, reduced the loss of solar battery sheet, shape welding band body 1 is wideer than original welding, be conducive to reduce resistance, reduce the power consumption of photovoltaic module, adopt this kind welding to battery sheet series welding in addition, to reduce the interval between the battery sheet, improve packaging density.
Embodiment 2
As Fig. 2 and shown in Figure 4, all the other are identical with embodiment 1, difference is, the two ends of shape welding band body 1 all are arranged with two through holes, place, shape welding band body 1 centre position through hole circumferentially is arranged with four through holes 3, the symmetrical centre place is provided with V-type groove 2 at the two ends of shape welding band body 1, with the stress after more effective minimizing welding.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. special-shaped welding that is used for the back contact solar cell sheet, comprise the shape welding band body, it is characterized in that, described shape welding band body is king's font, place, described shape welding band body centre position is middle font, the place is provided with a through hole in the centre position, and described shape welding band body is layed in the back side of back contact solar cell sheet, and the back contact solar cell sheet is by described shape welding band body series welding.
2. the special-shaped welding for the back contact solar cell sheet according to claim 1 is characterized in that, the symmetrical centre place, two ends of described shape welding band body is provided with U-shaped or the V-type groove.
3. the special-shaped welding for the back contact solar cell sheet according to claim 1 and 2, it is characterized in that, the two ends of described shape welding band body all are arranged with two through holes, and place, described shape welding band body centre position through hole circumferentially is arranged with four through holes.
4. the special-shaped welding for the back contact solar cell sheet according to claim 1 is characterized in that, the thickness of described shape welding band body is 0.2mm-0.5mm.
5. the special-shaped welding for the back contact solar cell sheet according to claim 1 is characterized in that, the width of described shape welding band body is more than 1.8mm reaches.
6. the special-shaped welding for the back contact solar cell sheet according to claim 1 is characterized in that the edge of described shape welding band body is provided with chamfering.
7. the special-shaped welding for the back contact solar cell sheet according to claim 1 is characterized in that, described shape welding band body is for being coated with the tin copper strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053563 CN203134836U (en) | 2013-01-31 | 2013-01-31 | Special-shaped welding strip for back contact solar cell piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053563 CN203134836U (en) | 2013-01-31 | 2013-01-31 | Special-shaped welding strip for back contact solar cell piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134836U true CN203134836U (en) | 2013-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053563 Expired - Lifetime CN203134836U (en) | 2013-01-31 | 2013-01-31 | Special-shaped welding strip for back contact solar cell piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972316A (en) * | 2013-01-31 | 2014-08-06 | 江苏宇邦光伏材料有限公司 | Special shaped welding strip for back-contacting solar battery panel |
| CN105826407A (en) * | 2016-03-21 | 2016-08-03 | 无锡携创新能源科技有限公司 | Back contact technology battery assembly and manufacturing method thereof |
-
2013
- 2013-01-31 CN CN 201320053563 patent/CN203134836U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972316A (en) * | 2013-01-31 | 2014-08-06 | 江苏宇邦光伏材料有限公司 | Special shaped welding strip for back-contacting solar battery panel |
| CN105826407A (en) * | 2016-03-21 | 2016-08-03 | 无锡携创新能源科技有限公司 | Back contact technology battery assembly and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181126 Address after: 215124 No. 22 Youxiang Road, Yuexi Street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU YOURBEST NEW-TYPE MATERLALS Co.,Ltd. Address before: 213022 No. 112 Xinyuan Fourth Road, Xinbei District, Changzhou City, Jiangsu Province Patentee before: JIANGSU YOURBEST SOLAR MATERIALS CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |