Welding belt welding, transmission and holding device for solar cell series welding machine, and series welding machine

Abstract

The invention provides a welding belt welding, transmission and holding device for a solar cell series welding machine. The welding belt welding, transmission and holding device for the solar cell series welding machine comprises two symmetrically arranged skirt structures and a welding belt pressing needle module connected with the skirt structures. The welding belt pressing needle module comprises a pressing-holding part of the welding belt on five pairs of cell sheets formed by a plurality of pressing needles which have three kinds of length specifications and are relatively arranged. One end of each pressing needle is arranged on an installation shaft in a sleeved mode through a slotted hole, and is jacked up through a spring by using a rotating shaft as a supporting point; the other end of each pressing needle is pressed downward on the welding belt to fix and hold the welding belt to the cell sheets. The bottom surface of the skirt structures is provided with a vacuum adsorption loop formed by a plurality of blind holes. The welding belt welding, transmission and holding device can ensure the fixing and holding of the welding belt in the transmission process, and avoid the inaccurate positioning in the transmission and the poor contact during welding which are caused by displacement.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cell manufacturing, and in particular to a grid wire stringer and a ribbon welding transmission and holding device suitable for the solar cell manufacturing process with a five-busbar structure. Background technique [0002] At present, the main problem affecting the popularization and application of solar cells is that there is still a large gap between the cost of power generation and traditional thermal power generation, and one of the main technical directions to reduce the cost of solar cell power generation is to continuously improve the photoelectric conversion efficiency of solar cells. The power generation efficiency of the solar cell is directly proportional to its effective light-receiving area. Therefore, in order to improve the power generation efficiency of solar cells, people are constantly trying to increase the effective light-receiving area of ​​the battery by using thinner m...

AI Technical Summary

Problems solved by technology

[0003] Solar battery components need to first weld each cell and ribbon (usually tin-plated copper ribbon) through a stringer to form a battery string, and then go through packaging and other processes to form a photovoltaic module unit for power generation. The current string Welding machines are basically designed and manufactured to match the cells of the previous three-busbar structure. When used for welding cells with a five-busbar structure, many problems will be encountered, especially the overall design space of the equipment. Due to the The size of the solar cell has not changed, and the cost of redesigning a complete set of solar cell stringer suitable for the five main grid structure is too high. The welding of solar cells with a grid structure poses a challenge to technicians, and the ribbon welding transmission and holding device of the stringer is one of them

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