Continuous manufacturing system of conductive connecting layer

Abstract

The invention discloses a continuous manufacturing system of a conductive connecting layer, and relates to the field of photovoltaic technology. In the manufacturing system, in a process that a longitudinal metal wire pulling module pulls a longitudinal metal wire to move, a transverse metal wire pulling module, a transverse cutting module, a welding module and alongitudinal cutting module on the processing line sequentially work to manufacture the conductive connecting layer, all the modules on the processing line are tightly combined, the automation degree is high, the longitudinal metal wire adopts a continuous stretching mode, cutting and segmenting are not conducted in the early stage, the turnover process can be effectively reduced, and efficient and continuous manufacturing of the conductive connection layer can be realized. In addition, the manufacturing system can meet the requirement that the metal wire does not deform, meanwhile, the flattening and / or annealing process can be further implanted, the yield strength of the metal wire can be reduced, technical process support is provided for reducing the welding internal stress, and a channel and a direction are provided for further thinning the battery piece.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a continuous production system of a conductive connection layer. Background technique [0002] With the rise of energy prices, the development and utilization of new energy has become the main topic of research in the field of energy. Because solar energy has the advantages of no pollution, no regional restrictions, and inexhaustible supply, the study of solar power generation has become the main direction for the development and utilization of new energy. Using solar modules to generate electricity is one of the main ways people use solar energy today. [0003] The photovoltaic module industry has developed in China since 2003, and the actual industrialization has developed for many years. However, the main proportion of welding materials has always been copper-based ribbon or wire. The thickness of the corresponding crystalline silicon cell wafer was relatively thick in...

AI Technical Summary

Problems solved by technology

However, the component welding system actually needs to be re-laid and re-guided. It needs to go through multiple times of roller yield strengthening, and the yield strength is increased again and again, resulting in the final yield strength is still not ideal.

[0006] For this reason, many component companies now adjust the design of the battery sheet welding structure, and use the conductive connection layer to contact the battery sheet for welding. However, because the metal wire forming the conductive connection layer is relatively thin, with a diameter of only 0.2-0.3mm, the wire is relatively soft. , so the production process is complicated and the efficiency is relatively low. In the production process, it is easy to cause poor welding of the conductive connection layer and cause scrapping

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