CN212907762U - Solar photovoltaic welding strip - Google Patents
Solar photovoltaic welding strip Download PDFInfo
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- CN212907762U CN212907762U CN202022384488.6U CN202022384488U CN212907762U CN 212907762 U CN212907762 U CN 212907762U CN 202022384488 U CN202022384488 U CN 202022384488U CN 212907762 U CN212907762 U CN 212907762U
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- solar photovoltaic
- welding
- area
- welds
- grid line
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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 utility model provides a solar photovoltaic welds area welds the position that takes surface and battery piece main grid line pad to correspond and is provided with the flank, the area of flank matches with the area of main grid line pad, the utility model provides a solar photovoltaic welds and takes simple structure, can promote the effective width of welding that welds the area when guaranteeing battery piece surface optics collection ability, further promotes the welding pulling force to promote the subassembly reliability.
Description
Technical Field
The utility model relates to a solar PV modules field specifically, relates to a solar photovoltaic welds area, especially relates to a solar photovoltaic of high reliability welds area.
Background
With the advancement of the flat-price internet access strategy in the photovoltaic market, cost reduction and efficiency improvement become an important direction in the photovoltaic module market. Therefore, in order to reduce shading loss, the width of the main grid line on the front side of the battery piece is narrower and narrower, and the width of the welding strip is also narrower and narrower. And as the welding strip is narrower and narrower, the effective welding width of the welding strip and the battery piece depends on narrower materials, so that the tension of the welding strip and the battery piece is smaller and smaller, and the reliability risk is higher and higher.
The conventional battery piece main grid line is shown in fig. 1, the width range of a battery piece main grid line (11) is between 0.6 mm and 1.5mm, and a welding tension test point is mainly the position of a battery piece main grid line welding pad (12).
As shown in FIG. 2, the conventional solder strip is composed of a copper base strip (21) and a tin-lead alloy layer (22) coated on the copper base strip, and the width of the solder strip is generally selected to be 0.35 + -0.5 mm in order to reduce the shading loss of the solder strip.
As shown in fig. 3 and 4, after the conventional solder strip (2) is soldered to the cell busbar (12), the effective soldering width is only the width of the solder strip (2) taking the location of the busbar pad (13) as an example. Therefore, compared with the solder strip with the width of 0.8mm or 1.0mm when the industry is just developed, the welding tension of the existing solder strip and the battery piece can not meet the requirement of welding reliability.
Therefore, the existing welding strip needs to be optimized, on one hand, the optical collection capacity of the surface of the battery piece is not affected, and on the other hand, the welding tension is effectively improved.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a solar photovoltaic welds area, especially a high reliability solar photovoltaic welds area.
According to the utility model provides a solar photovoltaic welds area welds the position that takes surface and battery piece main grid line pad to be connected and is provided with the flank, the area of flank matches with the area of main grid line pad.
Preferably, the side wings are rectangular, semi-circular or elliptical.
Preferably, the side wings are flattened rectangular, semi-circular or oval.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a solar photovoltaic welds area simple structure when not influencing battery piece surface optics collection ability, has promoted the effective width of welding that welds the area, has further promoted the welding pulling force to the subassembly reliability has been promoted.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of a conventional main grid line structure of a battery plate;
FIG. 2 is a schematic view of a conventional solder strip structure;
FIG. 3 is a schematic view of an external appearance of a conventional solder strip;
FIG. 4 is a schematic view illustrating the welding effect of the conventional solder strip and the main grid;
fig. 5 is a schematic structural view of the solar photovoltaic solder strip of the present invention;
fig. 6 is a schematic view of the welding effect between the solar photovoltaic solder strip and the main grid line of the present invention.
The figures show that:
11-cell main grid line;
12-a cell main grid line pad;
2-welding a strip;
21-copper base band;
a 22-tin-lead alloy layer;
3-side wing
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
As shown in fig. 5, a solar photovoltaic solder strip is provided, a side wing 3 is arranged at a position where the surface of the solder strip is connected with a main grid line pad 12 of a cell, and the area of the side wing 3 is matched with the area of the main grid line pad 12 of the cell. As shown in fig. 6, work as the utility model provides a solar photovoltaic welds area and is connected with battery piece main grid line, welds the width that takes flank 3 and battery piece main grid line pad and just matches to when guaranteeing battery piece surface optics collection ability, promoted the effective width of welding that welds the area, further promoted the welding pulling force, thereby promoted photovoltaic module's reliability.
The shape of the welding strip side wing 3 can be square as shown in the figure, and can also be round, semi-oval or any other shape; preferably, the side wing 3 is of a flattened type, and specifically, a flattening process can be added in the production process of the welding strip, namely, the welding strip is flattened by the convex surface of the concave-convex mould according to the space between the welding pads of the battery piece before the copper base strip is annealed, and the stress can be reduced by the flattened side wing.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (3)
1. The solar photovoltaic welding strip is characterized in that a side wing (3) is arranged at a position, connected with a cell main grid line bonding pad (12), of the surface of the welding strip, and the area of the side wing (3) is matched with that of the cell main grid line bonding pad (12).
2. The solar photovoltaic solder strip according to claim 1, characterized in that the side wings (3) are rectangular, semicircular or oval.
3. The solar photovoltaic solder strip according to claim 1, characterized in that the side wings (3) are flattened rectangles, semicircles or ellipses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022384488.6U CN212907762U (en) | 2020-10-23 | 2020-10-23 | Solar photovoltaic welding strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022384488.6U CN212907762U (en) | 2020-10-23 | 2020-10-23 | Solar photovoltaic welding strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212907762U true CN212907762U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022384488.6U Active CN212907762U (en) | 2020-10-23 | 2020-10-23 | Solar photovoltaic welding strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212907762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682945A (en) * | 2022-04-08 | 2022-07-01 | 环晟新能源(江苏)有限公司 | Battery welding process of laminated tile assembly |
-
2020
- 2020-10-23 CN CN202022384488.6U patent/CN212907762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682945A (en) * | 2022-04-08 | 2022-07-01 | 环晟新能源(江苏)有限公司 | Battery welding process of laminated tile assembly |
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