Air-breathing worktable for repairing solar cell laminates

Abstract

The invention provides an air-breathing worktable for repairing solar cell laminates. The worktable comprises a table frame, a table top board, an electric controller, suckers, a vacuum generator and a vacuum adsorption loop, wherein the suckers are uniformly distributed on the table top board; the top surfaces of all the suckers are arranged in the same plane and are 0.1-0.5mm higher than the upper end face of the table top board; and the suckers are connected with the vacuum generator via the electric controller and the vacuum adsorption loop. When the solar cell laminates are repaired, the electric controller electrifies an electromagnet at the A end of a three-position three-way reversing valve, the vacuum generator and the suckers are connected, the suckers suck the workpiece, and then the electromagnet at the A end of the three-position three-way reversing valve is diselectrified and maintains the vacuum adsorption state, so the operator can tear off the back film, and then an electromagnet at the B end of the three-position three-way reversing valve is electrified, the suckers are separated form the workpiece, and at the moment, the operator can move away the treated solar cell laminates. The worktable has the following beneficial effects: the back film can be conveniently torn off and the laminates can not bend and cause breaking of the cell plates.

Description

Technical field: [0001] The invention relates to a maintenance tool in the production process of solar cell laminates, in particular to a workbench for repairing solar cell laminates. Background technique: [0002] The hot pressing process of solar cell laminates usually adopts a two-step production process. The first is to use a laminator for a short time to vacuum and hot press to shape the solar cell laminates. According to the transparent tempered glass, EVA, cell, EVA and The back sheets are stacked in sequence, the heating temperature is set, the pre-stacked pieces to be laminated are put into the heated laminator, the vacuum is started, and the pumping is below 100Pa, the airbag channel valve is opened, and the outside atmosphere is connected. The upper chamber air bag is inflated and pressurized, and the pressure is maintained, and the component is heated continuously until the EVA reaches the curing point and the curing time is specified, and the laminator is opened...

AI Technical Summary

Problems solved by technology

[0004] After the battery module has been laminated once, the adhesive force between the back film and EVA is very strong. To tear off the back film needs to be carried out at a high temperature and requires a lot of effort. At the same time, the laminate must be fixed However, the laminate is covered with a back film and there is no point of strength, and the laminate is difficult to fix, making it difficult to remove the back film, and the tearing force is too large to cause the battery assembly to bend and deform and cause the battery sheet to rupture. In order to overcome the above difficulties , the inventors have invented a rework station capable of absorbing laminates

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