Adjustable bonding pad and welding process
A technology of welding process and welding pad, which is applied in the field of adjustable welding pad and welding process, can solve the problems of lack of annealing process after welding of battery slices, failure to meet welding requirements, cracking of battery slices along the welding strip, etc., and improve the effect of pressure application , thermal stress release evenly, reduce the effect of cracking
Active Publication Date: 2022-07-22
英利能源发展有限公司
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Problems solved by technology
The welding pads of the welding machine currently have flat plate type and press block type. The flat plate pressure plate exerts pressure on the entire battery, not just the solder joints, and is suitable for the flatness of the battery. If the battery is not flat, it will cause a certain part of the weld. Or open welding, and the briquetting platen is only effective for individual products, which cannot meet the welding needs of all products
[0003] In addition, in the existing basic battery ribbon welding process engineering, the battery slices are directly cooled after welding, and the post-welding annealing process of the battery slices is lacking. Due to the uneven thermal stress release of the welded battery slices during the cooling process, the battery after welding Cracks along the strip
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[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0034] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0035] refer to Figure 1-4 , the present invention provides an adjustable pad, which includes a battery sheet 1, a plurality of solder joints 2 are arranged on the battery sheet 1, and...
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The invention discloses an adjustable bonding pad and a welding process, the adjustable bonding pad comprises a battery piece, a plurality of welding spots are arranged on the battery piece, the adjustable bonding pad further comprises a bonding pad, the bonding pad is arranged on one side, far away from the battery piece, of each welding spot, the bonding pad comprises an adjusting part and a plurality of pressing parts, the pressing parts and the welding spots are correspondingly arranged, and the adjusting parts are used for adjusting the positions of the pressing parts; and the welding strip is arranged between the welding spot and the pressing piece, and the pressing piece is used for pressing the welding strip on the welding spot. The positions of the pressing blocks on the pressing disc can be adjusted according to needs, so that the pressing disc can be used for different types of battery pieces, the application range of the pressing disc is expanded, the use cost is reduced, meanwhile, secondary heating treatment is conducted on the battery pieces, the welding strength of welding points and the battery pieces is improved, loss in the solar battery welding process is reduced, and the welding quality of the solar battery is improved. And the assembly production cost is reduced.
Description
technical field [0001] The invention relates to the technical field of photovoltaic module production, in particular to an adjustable pad and a welding process. Background technique [0002] At present, the number of main grids of battery chips on the market varies, including 10 grids, 12 grids, etc., and the solder joint positions of battery chips of the same size are also different from major manufacturers. Demand and battery products are also varied. Welding machine pads currently have flat plate type and pressure block type. The flat plate pressure plate applies pressure to the entire cell, not just the solder joints. It is suitable for flat cells. Or open welding, and the pressure block type platen is only valid for individual products, which cannot meet the welding needs of all products. [0003] In addition, in the existing basic cell strip welding process engineering, the cells are directly cooled after welding, and the post-welding annealing process is lacking, an...
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IPC IPC(8): B23K31/02B23K37/00B23K37/04H01L31/05H01L31/18
CPCB23K31/02B23K37/00B23K37/0435H01L31/0508H01L31/188H01L31/1864
Inventor 王坤张晓芳麻超
Owner 英利能源发展有限公司