Ribbon pulling device and positioning and welding method for crystalline silicon solar cell module

Abstract

The invention provides a ribbon pulling device and a positioning and welding method for a crystalline silicon solar cell module, transporting at least one solder ribbon on the bottom surface and placing it on the bottom layer according to a preset position; On the bottom surface welding ribbon; carry at least one surface welding ribbon and place it on the solar cell according to the preset position, the surface welding ribbon is located directly above the corresponding bottom surface welding ribbon; through the hollow part on the negative pressure suction cup, In the lengthwise direction, the surface soldering strips, the solar cells and the corresponding bottom soldering strips are locally fixed at least one point. By designing a hollowed-out ribbon pulling device, the present invention can directly absorb the ribbon and place it on the busbar of the solar cell, and perform glue dispensing or non-contact welding on one or more points of the ribbon through the hollowed-out part, effectively ensuring that the ribbon Accurate positioning with the main grid line avoids the movement of interconnection bars and cell grid lines before welding, improving welding efficiency and welding effect.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic manufacturing and application, and in particular relates to a ribbon pulling device and a positioning and welding method for a crystalline silicon solar cell module. Background technique [0002] The production of solar cell modules is the process of stringing and welding solar cells. The existing traditional battery string welding needs to use a pressure pin to press the welding strip, so that the welding strip can be welded in a proper position during welding, and ensure that the welding strip is attached to the surface electrode of the battery to ensure the welding effect. The welding process in which the pressure pin presses the ribbon and the slight vibration of the battery sheet and the ribbon in the subsequent arrangement during the forward transmission process may cause subtle cracks. [0003] A new manufacturing method of the solar battery module reduces the hidden cracks that may b...

AI Technical Summary

Problems solved by technology

[0004] But this method also has some problems

For the traditional 5BB ribbon, which is a flat ribbon, after laying on the surface of the cell, it only depends on its own weight and the weight of the cell to ensure positioning, which is extremely difficult and has poor reliability.

For multi-busbar (MBB) cells, since the ribbons are multiple circular ribbons, after they are laid on the surface of the cell, it is difficult to keep their positions fixed with the position of the main grid of the cell, which will cause welding problems during welding. Ribbon offset from busbar, resulting in soldering failure or scrap

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