Low-resistance solder strip for photovoltaic assembly automation line

Abstract

The invention discloses a low-resistance solder strip for a photovoltaic assembly automation line, and the solder strip comprises a substrate and tin coating layers. One side wall of the substrate is welded with a first stopping block, and a first groove is disposed between the first baffle plate and the substrate. The first groove is parallel to the first stopping block, and the first stopping block is symmetric relative to the substrate and is fixed on the substrate. A first convex block is welded in a longitudinal direction of the first stopping block, and a through hole passes through a side wall of the substrate. The through hole is perpendicular to the extending direction of the first stopping block. Second stopping blocks are welded at side edges of the through hole of the substrate, and second grooves are disposed between the second stopping blocks. The through hole passes through the substrate between the second grooves. A second convex block is welded in a longitudinal direction of the second stopping blocks. The surfaces of the first groove, the second grooves, the first stopping block and the second stopping blocks are coated with the tin coating layers. The solder strip is advantageous in that the tin coating layers are strong in adhesive force, and effectively solves a subfissure problem of a photovoltaic assembly after welding. The first and second stopping blocks are installed to be parallel to the substrate, thereby increasing the area of the substrate and improving the conducting capability of the solder strip.

Description

Technical field [0001] The invention relates to the technical field of welding ribbons, in particular to a low-resistance welding ribbon for automatic lines of photovoltaic modules. Background technique [0002] With the rapid development of society and the advancement of science and technology, solar energy has been widely used. In the application of solar energy, the welding tape for welding photovoltaic modules has played an important role in welding. The welding tape is an important raw material in the welding process of photovoltaic modules. The quality of the ribbon will directly affect the current collection efficiency of the photovoltaic module, and has a great impact on the power of the photovoltaic module. The general selection standard is to determine the thickness of the ribbon according to the thickness of the cell and the short-circuit current. The width of the battery should be the same as the main wire width of the battery. The softness and hardness of the solderi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-resistance soldering strip for automatic lines of photovoltaic modules, which has the advantages of strong adhesion of the tin-coated layer, firm welding, and low resistance, and solves the problems of weak tin-coating and high welding resistance of the existing soldering strips

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