Cutting device for solar cell piece

Abstract

The invention discloses a cutting device for a solar cell piece. The cutting device comprises a laser device adjusting platform, a laser device, a light spot generator and a positioning adsorption device; the laser device adjusting platform is used for adjusting the installation position of the laser device; the laser device is connected with the laser device adjusting platform and used for emitting lasers; the light spot generator is connected with the laser device and comprises a beam expander, a scanning galvanometer and a scanning field lens which are sequentially arranged, wherein the lasers sequentially pass through the beam expander, the scanning galvanometer and the scanning field lens, the beam expander is used for amplifying the diameter of the lasers to obtain laser beams with high collimation degree, and the scanning field lens is used for converging the laser beams into light spots; and the positioning adsorption device is arranged below the scanning field lens and is used for fixing the solar cell piece. The cutting device has the beneficial effects that by adopting the scanning galvanometer, a laser cutting head and work-pieces to be processed do not need to move, the cutting speed is increased, the positioning accuracy is high, the defects that the speed of mechanical movement is small and the positioning precision of mechanical movement is limited are greatly overcome, moving back and forth is not needed in the cutting process, the cutting efficiency is improved, the cutting precision is high, and the production cost of an enterprise is saved.

Description

technical field [0001] The invention relates to the field of battery slice cutting, in particular to a solar battery slice cutting device which adopts a laser to cut solar battery slices. Background technique [0002] The traditional laser cutting method for large-format workpieces mainly adopts mechanical movement. One is that the laser cutting head does not move, and the workpiece to be processed moves on a two-dimensional motion platform; the other is a two-dimensional motion with the laser cutting head installed. The platform moves, and the workpiece to be processed does not move. [0003] When producing solar cells, it is often necessary to scribe the entire cell to form a scribe line, and then divide the entire cell into several cell units along the scribe line, but since the general length and width of a solar cell are 156mm* About 156mm, then the battery needs to be cut in parallel in the same direction into more than 2 battery units, generally 2 to 5 battery units....

AI Technical Summary

Problems solved by technology

Cutting with traditional mechanical movement requires the cutting head or the moving platform to move back and forth. When multiple cutting lines are required, do not move back and forth multiple times. This will not only reduce the cutting efficiency, but also increase the working hours of cutting, and the required cutting time is longer. , and multiple back-and-forth motions will produce motion errors, which will affect the positioning accuracy during cutting and affect the cutting quality of cells

Images