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Laser welding method and system

A technology of laser welding and welding points, which is applied in the field of solar cells, can solve the problems of low manual welding operation efficiency and good product rate, affecting battery production efficiency, etc., and achieve the effect of improving operation efficiency and good product rate, and improving production efficiency

Pending Publication Date: 2020-10-27
鸿翌科技有限公司
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Problems solved by technology

[0003] In order to achieve the above purpose, in the prior art, each battery piece is welded to the front plate by manual welding, but the operation efficiency and yield rate of manual welding are low, which seriously affects the production efficiency of the battery

Method used

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  • Laser welding method and system
  • Laser welding method and system
  • Laser welding method and system

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Embodiment

[0048] The present invention will be specifically described below in conjunction with a specific embodiment, but it should be noted that this specific embodiment is only for better describing the present invention, and does not constitute an improper limitation of the present invention.

[0049] First, fix the battery sheet on the front panel film, use the image acquisition device to take pictures of the battery sheet and the front panel film and collect the image data of the battery sheet and the front panel film.

[0050] Then, according to the image data of the battery sheet and the front sheet film, set the "cross mark" on the front sheet film, so that the "cross mark" can be used as the marking point to determine the welding point of the cell sheet and the front sheet film. In particular, the welding area is cross-shaped or S-shaped, and there may be multiple welding points, which are arranged sequentially on the same side of the battery sheet and the front plate film.

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Abstract

The invention provides a laser welding method and system. The welding method comprises the steps that position data of a cell on a front plate film are collected; the corresponding welding spots of the cell and the front plate film are determined according to the position information; and the welding spots are welded, so that the cell is fixed to the welding position of the front plate film. According to the laser welding method and system, the operation efficiency of laser welding can be effectively improved, the yield of laser welding can be effectively increased, and the production efficiency of batteries is effectively improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a laser welding method and a welding system. Background technique [0002] In the battery production process, the integrated chip interconnection (ICI) is to connect multiple small battery slices in series to each other and then lead out the current, and the connection of two battery slices must be the negative pole connected to the positive pole of another battery. In the field of thin-film solar cells, the side without the film is the positive electrode, and the side with the film is the negative electrode. Therefore, the welding method of the battery sheet is to connect the negative electrode of the adjacent battery sheet to the positive electrode, so that the battery sheet can be connected in series. [0003] In order to achieve the above purpose, in the prior art, each battery sheet is welded to the front plate by manual welding, but the operation efficiency and yield ra...

Claims

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Application Information

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IPC IPC(8): B23K26/21B23K26/70
CPCB23K26/21B23K26/702
Inventor 郑大伟黄帅苏领杨海山布凡超
Owner 鸿翌科技有限公司
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