Etching device for solar cell production

Abstract

The invention discloses an etching device for producing a solar cell, comprising an etching groove and a spraying device mounted on the etching groove, wherein a material inlet is formed on the frontsurface of the etching groove, and a material outlet matching the material inlet is formed on the rear surface of the etching groove; an etching liquid tank is arranged on the outer surface of the left side of the etching groove; a waste liquid collecting tank is arranged on the right surface of the etching groove; a connection cross beam is fixed on the edge on the top of the left side surface ofthe etching groove; a worm is fixed on the surface of the connection cross beam in a penetration manner; a spraying device comprises a spray pipe; a worm gear is fixed on the surface of the spray pipe; the left end of the spray pipe is connected with a liquid inlet pipe through a shaft sleeve; and the right end of the spray pipe is connected with a liquid outlet pipe through a shaft. The etchingdevice of the invention has the advantages of simple structure, automatization of operation, uniform spraying of the etching liquid, uniform etching effect, as well as the advantages of high utilization rate, strong cleaning ability and no secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of solar cell production, and in particular relates to an etching device for solar cell production. Background technique [0002] Solar cells, also known as "solar chips" or "photovoltaic cells", are photoelectric semiconductor sheets that use sunlight to generate electricity directly. As long as it is illuminated by light that meets certain illumination conditions, it can output voltage instantly and generate current when there is a loop. As a kind of green energy, solar energy has been developing continuously in the solar cell industry in recent years. [0003] Etching is the technique of removing material using chemical reaction or physical impact. Etching technology can be divided into two types: wet etching and dry etching. During etching, contact with chemical solution to achieve the effect of dissolution and corrosion, forming the effect of concave-convex or hollow molding. After continuous improve...

AI Technical Summary

Problems solved by technology

This method reduces the utilization rate of the etching device during the cleaning process, and the cleaning workload is large and the efficiency is low; at the same time, for the dirt that has accumulated for a long time, cleaning tools and organic solvents are required, resulting in easy damage to the etching tank and easy to produce secondary. secondary pollution

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