Welding belt positive electrode sucker device for solar cell series welding machine, and series welding machine

Abstract

The invention discloses a welding belt positive electrode sucker device for a series welding machine for the production of a solar cell with a five main grid structure. The welding belt positive electrode sucker device comprises a plane sucker and a sealing plate; the sealing plate is provided with a vacuum suction hole, the upper surface of the plane sucker is provided with five flange structures, and welding belt positioning grooves are formed in five flange structures. A plurality of welding belt vacuum adsorption grooves are formed in each welding belt positioning groove, each vacuum adsorption groove is communicated with the vacuum suction hole of the plane sucker, and an optical fiber sensor mounting hole is formed in each welding belt positioning groove; a plurality of screw fixing holes fixedly connected with the sealing plate are formed in the plane sucker. The welding belt positive electrode sucker device is suitable for the welding belt positive electrode transmission process of the solar cell with the five main grid structure, and can ensure the stability and reliability of a plurality of grid line welding belts with smaller width in a transmission process, achieve the accuracy of positioning of the finished welding belt and the cell sheet and improve the welding quality of the finished cell sheet grid line.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cell manufacturing, in particular to a ribbon positive sucker device and a stringer welding machine suitable for the manufacturing process of solar cells 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 main grids, ...

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 the technicians, and it is one of the ribbon sucker devices used in the stringer. On the one hand, the width of the ribbon (grid) that needs to be adsorbed and fixed is relatively thin, generally only 0.9 mm; on the other hand, the number of grid lines has also increased, which adds a lot of difficulties to the ribbon sucker device

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