A kind of solar photovoltaic module thermal link process method

Abstract

The invention discloses a process method for thermal linking of solar photovoltaic modules. Both the head and tail metal wire film units and the middle metal wire film unit include a plurality of metal wires arranged in parallel, respectively located on opposite sides of the plane where the metal wires are located and arranged staggered. Composite film and lower composite film, the process method is to combine an upper composite film of an intermediate metal wire film unit, a plurality of metal wires of the intermediate metal wire film unit, a photovoltaic element, and an intermediate metal wire adjacent to an intermediate metal wire film unit The multi-strand metal wires of the membrane unit or the first and last metal wire membrane unit, the intermediate metal wire membrane unit adjacent to an intermediate metal wire membrane unit or the lower composite membrane of the first and last metal wire membrane unit are stacked sequentially, and bonded by thermocompression to form a photovoltaic component string. This thermal link process method eliminates the need to remove the film at the head and tail of the unit photovoltaic module, which not only improves the production efficiency, but also makes the solar photovoltaic cell have better electrical conductivity. At the same time, the use of silver paste is reduced, which greatly reduces costs.

Description

technical field [0001] The invention relates to the technical field of battery production and manufacturing, in particular to a solar photovoltaic module thermal link process method. Background technique [0002] In the field of solar photovoltaic module equipment manufacturing at home and abroad, the main grid of the electrode sheet and the metal wire are welded with silver paste during the manufacturing process of the electrode string, and the alignment between the metal wire and the main grid of the electrode sheet is relatively high. The main grid connection of the electrode sheet is connected by several metal wires with a rectangular cross section. The welding contact area is small and the welding performance is average. At the same time, the silver paste welding also has a great influence on the light transmission performance; in addition, after making a single electrode string unit , the adhesive film at the head and tail of the electrode string unit needs manual inte...

AI Technical Summary

Problems solved by technology

When the exposed metal wires at the head and tail are defilmed, the glue molecules will remain on the metal wires, which will reduce the conductivity of the electrode string.

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