Bottom plate welding device and battery string production equipment

Abstract

The invention provides a welding bottom plate device and battery string production equipment, and relates to the technical field of battery string production. The welding bottom plate device comprises a welding bottom plate body, a plurality of parallel welding wire tail clamping jaw receding grooves are formed in the upper surface of the welding bottom plate body, a plurality of battery piece negative pressure adsorption holes distributed in a rectangular array are formed in the surface of the welding bottom plate body in a penetrating mode, and high-temperature-resistant strong magnet pre-buried grooves are formed in the upper surface of the welding bottom plate body and located on the two sides of the welding wire tail clamping jaw receding groove. According to the bottom plate welding device and the battery string production equipment, a welding wire positioning groove is formed in a welding bottom plate, welding wires are accurately positioned, the position coincidence precision of main grid lines and the welding wires of a battery piece is higher, the width of the main grid lines on the front face and the back face of the battery piece can be smaller, silver paste is saved, the diameter of the welding wires can be reduced, the welding wires with the same weight can be machined to be longer, more battery strings can be welded, and the use cost of the battery piece and the welding wires is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of battery string production, in particular to a welding bottom plate device and battery string production equipment. Background technique [0002] Cells are generally divided into monocrystalline silicon, polycrystalline silicon, and amorphous silicon. Monocrystalline silicon solar cells are currently the fastest-developed type of solar cells. Its structure and production process have been finalized, and its products have been widely used in space and on the ground. This solar cell is made of high-purity monocrystalline silicon rods. In order to reduce production costs, solar cells for ground applications use solar-grade monocrystalline silicon rods, and the material performance indicators have been relaxed. Some can also use the head and tail materials and waste single crystal silicon materials processed by semiconductor devices, and make single crystal silicon rods dedicated to solar cells after redrawin...

AI Technical Summary

Problems solved by technology

[0003] At present, the stringer welding machine produced by a domestic manufacturer uses a fixed platform to place the battery slices, and then uses the Teflon belt to transfer the laid battery slices and welding wires to the bottom of the welding lamp after multiple starts and stops. Welding again; in this series of action processes, the relative position between the welding wire and the battery piece and the welding base plate will move, which will easily cause the round welding wire to roll on the Teflon belt, resulting in the welding wire and the battery piece when it reaches the welding position. The busbar line deviates, causing poor welding

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