CN203607420U - Over-welding resistance solar cell electrode - Google Patents
Over-welding resistance solar cell electrode Download PDFInfo
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- CN203607420U CN203607420U CN201320698004.2U CN201320698004U CN203607420U CN 203607420 U CN203607420 U CN 203607420U CN 201320698004 U CN201320698004 U CN 201320698004U CN 203607420 U CN203607420 U CN 203607420U
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Abstract
The utility model relates to an over-welding resistance solar cell electrode. The electrode comprises main grids and auxiliary grids; the main grids are arranged perpendicularly to the auxiliary grids; two ends of each main grid are respectively provided with a hollow section; each hollow section is composed of two fine grid lines which extend along the corresponding main grid to the two ends of the corresponding main grid; the fine grid lines are arranged perpendicularly to the auxiliary grids, and the fine grid lines and the auxiliary grids are connected at ends; the width between each two corresponding fine grid lines is greater than the width of a corresponding solder strip and matches the width of the corresponding solder strip; and the hollow sections are arranged at reserved welding positions at two ends of the main grids. Concaves are formed at the two ends of the main grid lines, so the main grid lines are not designed at places where need reserved welding zones and are replace by two fine lines parallel to the main grid lines; and, when the solder strips are welded, the reserved hollow parts are no longer covered with a silver paste, so the reserved hollow parts cannot be welded, and thus the over-welding problem in the welding process is eliminated fundamentally.
Description
Technical field
The utility model relates to a kind of crystal silicon solar energy battery field, is specifically related to the electrode field of solar cell.
Background technology
Crystal silicon solar energy battery industrialization technology is very ripe at present, but compared with conventional energy resource, the product quality of relatively high cost, lower efficiency and high-quality has restricted its development, and for how to reduce costs and improve conversion efficiency, people have carried out a large amount of research.
In present photovoltaic manufacturing process, welding is one technique in crystal silicon solar battery component encapsulation process, mainly by together with the main grid wire bonding of welding and cell piece, the electric current that monolithic battery sheet produces gathers to main grid line after being collected by secondary grid line, then guides away by the welding being welded on main grid line.
Welding is soldered in the process of front main grid line, can produce welding stress and deformation, and in later stage lamination operation, cell piece can be positive stressed, and the easy like this cell piece that causes is cracked, therefore need to not weld at the each reserved certain length in main grid line two ends, to discharge stress.But, at present no matter during at artificial welding or machine automatic welding, capital (artificial error, cell piece skew, scaling powder spraying scope are excessive, machine error etc.) for various reasons, causes main grid line two ends to cross weldering, makes main grid line two ends without reserved or length in reserve is too small.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of solar cell, can make the place of reserving no longer include the covering of silver slurry, has fundamentally stopped to cross in welding process the problem of weldering.
The technical scheme that the utility model adopts is: a kind of anti-weldering electrode of solar battery of crossing, comprise main grid and secondary grid, above-mentioned main grid is vertical with secondary grid to be arranged, and the two ends of above-mentioned main grid are provided with a hollow out section, and above-mentioned hollow out section is made up of two thin grid lines that extend along main grid to two ends.
Preferably, the width between above-mentioned two thin grid lines is greater than the width of described welding, and width between described two thin grid lines and the width of described welding match.
Preferably, reserved position is welded at the two ends that above-mentioned hollow out section is located at above-mentioned main grid.
Preferably, above-mentioned hollow out section forms spill.
Preferably, above-mentioned hollow out section is 3mm-7mm along the length of main grid direction.
Preferably, above-mentioned hollow out section is 5mm along the length of main grid direction.
Preferably, above-mentioned thin grid line is vertical with secondary grid arranges.
Adopt the beneficial effect of the technical program to be: a kind of anti-weldering electrode of solar battery of crossing of the utility model, comprise main grid and secondary grid, be provided with a hollow out section at the two ends of main grid, hollow out section is made up of two thin grid lines that extend along main grid to two ends, thin grid line is with the vertical setting of secondary grid and be connected in end, because being located at main grid two ends, hollow out section welds reserved position, two ends at main grid line form spill, two ends at main grid have replaced original main grid line with two thin grid lines, owing to there is no silver paste for covering in the middle of two thin grid lines.In welding welding, owing to being a hollow out section in reserved place, main grid two ends, do not have silver slurry to cover, welding cannot be welded on hollow out section position, the welding that does not weld at hollow out position, therefore, cannot cause the situation of weldering at all, thereby fundamentally stop to cross in welding process the problem of weldering.
Accompanying drawing explanation
Fig. 1 is front electrode vertical view in the utility model embodiment 1;
Fig. 2 is battery hollow out section enlarged drawing in the utility model embodiment 1;
Fig. 3 is prior art front electrode of solar battery vertical view;
Fig. 4 is the structure enlarged drawing that contains welding in the utility model embodiment 1;
In figure, 1. thin grid line 5. weldings of the secondary grid 3. hollow out section 4. of main grid 2..
Embodiment
Describe specific embodiment of the utility model in detail below in conjunction with accompanying drawing.
Embodiment 1
As shown in Figure 1, 2, a kind of anti-weldering electrode of solar battery of crossing, comprises main grid 1 and secondary grid 2, the setting vertical with secondary grid 2 of above-mentioned main grid 1, the two ends of above-mentioned main grid 1 are provided with a hollow out section 3, and above-mentioned hollow out section 3 is made up of two thin grid lines 4 that extend along main grid 1 to two ends, and hollow out section 3 has formed spill.The now thin same setting vertical with secondary grid 2 of grid line 4.
As shown in Figure 4, welding 5 is placed on main grid 1 and welds, and in the middle of the hollow out section 3 at the two ends of main grid 1, is hollow, when welding, because hollow out section 3 does not have silver slurry, welding 5 can not weld in hollow out section 3, between two thin grid lines 4 of hollow out section 3, there is no silver slurry.Because two thin grid 4 lines have replaced main grid 1, therefore between two thin grid lines 4, there is no silver slurry.When welding, between two thin grid lines 4 that welding 5 can not and not have silver to starch, weld, since all can not form welding, so more can not produce weldering problem, thereby fundamentally stop the weldering problem of crossing in welding process, and, the width of preferred two thin grid lines 4 is greater than the width of welding 5, and match with the width of welding 5, can better prevent that the narrow welding 5 that makes of width between two thin grid lines 4 is trapped on two thin grid lines 4, prevent from forming weldering.
Embodiment 2
All the other are identical with embodiment 1, and difference is, described hollow out section is 3mm-7mm along the length of main grid direction, the present embodiment is preferably 5mm, and 5mm hollow out section is hollow, and centre does not have silver slurry, both guaranteed that reserved portion can be not too small, and also can prevent the excessive impact that welding effect is caused of reserved portion.In welding welding, can not be welded in hollow out section, therefore, fundamentally stop welding and crossed the problem of weldering.
Adopt the beneficial effect of the technical program to be: a kind of anti-weldering electrode of solar battery of crossing of the utility model, comprise main grid and secondary grid, be provided with a hollow out section at the two ends of main grid, hollow out section is made up of two thin grid lines that extend along main grid to two ends, thin grid line is with the vertical setting of secondary grid and be connected in end, because being located at main grid two ends, hollow out section welds reserved position, two ends at main grid line form " spill ", two ends at main grid have replaced original main grid line with two thin grid lines, in the middle of two thin grid lines, there is no silver paste for covering.Therefore, in welding welding, owing to being a hollow out section in reserved place, main grid two ends, do not have silver slurry to cover, welding cannot be welded on hollow out section position, the welding that does not weld at hollow out position, therefore, fundamentally stopped to cross in welding process the problem of weldering.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (6)
1. the anti-weldering electrode of solar battery of crossing, comprise main grid and secondary grid, described main grid is vertical with secondary grid to be arranged, it is characterized in that, the two ends of described main grid are provided with a hollow out section, described hollow out section is made up of two thin grid lines that extend along main grid to two ends, and the width between described two thin grid lines is greater than the width of welding, and width between described two thin grid lines and the width of welding match.
2. the anti-weldering electrode of solar battery of crossing according to claim 1, is characterized in that the reserved position, two ends that described hollow out section is located at described main grid.
3. the anti-weldering electrode of solar battery of crossing according to claim 1, is characterized in that, described hollow out section forms spill.
4. according to the arbitrary described anti-weldering electrode of solar battery of crossing of claim 1-3, it is characterized in that, described hollow out section is 3mm-7mm along the length of main grid direction.
5. the anti-weldering electrode of solar battery of crossing according to claim 4, is characterized in that, described hollow out section is 5mm along the length of main grid direction.
6. the anti-weldering electrode of solar battery of crossing according to claim 1, is characterized in that described thin grid line and vertical setting of described secondary grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698004.2U CN203607420U (en) | 2013-11-07 | 2013-11-07 | Over-welding resistance solar cell electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698004.2U CN203607420U (en) | 2013-11-07 | 2013-11-07 | Over-welding resistance solar cell electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607420U true CN203607420U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320698004.2U Expired - Fee Related CN203607420U (en) | 2013-11-07 | 2013-11-07 | Over-welding resistance solar cell electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN203607420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882497A (en) * | 2015-06-05 | 2015-09-02 | 中利腾晖光伏科技有限公司 | Grid-shaped electrode solar cell |
| CN108831946A (en) * | 2018-06-26 | 2018-11-16 | 浙江晶科能源有限公司 | A kind of solar photovoltaic assembly |
-
2013
- 2013-11-07 CN CN201320698004.2U patent/CN203607420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882497A (en) * | 2015-06-05 | 2015-09-02 | 中利腾晖光伏科技有限公司 | Grid-shaped electrode solar cell |
| CN108831946A (en) * | 2018-06-26 | 2018-11-16 | 浙江晶科能源有限公司 | A kind of solar photovoltaic assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1, Tenghui Road, Chang Kun Industrial Park, Suzhou, Changshou City, Jiangsu Patentee after: SUZHOU TALESUN SOLAR TECHNOLOGIES Co.,Ltd. Address before: No. 1, Tenghui Road, Chang Kun Industrial Park, Suzhou, Changshou City, Jiangsu Patentee before: ZHONGLI TALESUN SOLAR Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20211107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |