Rapid etching device and method for printed circuit board of new energy automobile

Abstract

The invention discloses a rapid etching device for a printed circuit board of a new energy automobile. The device comprises an etching groove (1), a filter screen (2), a water pump (3) and a circuit board collecting tank (4), and a through groove (5) is formed in the left side wall of the etching groove (1). A vertically arranged oil cylinder (6) is fixedly mounted at the top of the right side wall of the etching groove (1), and a supporting plate (7) is welded to the top of a piston rod of the oil cylinder (6). A hinge seat (8) is arranged on the supporting plate (7), and the filter screen (2) is obliquely arranged downwards leftwards and is arranged above the etching groove (1). The left edge of the filter screen (2) extends into the through groove (5), and the right edge of the filter screen (2) is hinged to the hinge seat (8) through a pin shaft. A water outlet pipe (10) is welded in the etching groove (1) and located on the left side wall. The beneficial effects of the invention are that the structure is compact, the etching efficiency is greatly improved, the etching cost is greatly saved, and the operation is simple.

Description

technical field [0001] The invention relates to a rapid etching device and method for a printed circuit board used in a new energy vehicle. Background technique [0002] New energy vehicle printed circuit board is an important part of electric vehicle circuit unit, its design is mainly layout design; the main advantage of new energy vehicle printed circuit board is to greatly reduce wiring and assembly errors, improve automation level and production labor Rate. The core process of the new energy vehicle printed circuit board manufacturing process is etching. The purpose is to remove the unnecessary copper foil to obtain the required circuit diagram. Among them, spray etching is the most commonly used. It sucks the etching liquid into the nozzle by pressurization. Then spray it on the surface of the circuit board, and the etching solution will corrode the unnecessary copper foil. During the etching, since a large amount of etching solution will remain on the surface of the e...

AI Technical Summary

Problems solved by technology

The core process of the new energy vehicle printed circuit board manufacturing process is etching. The purpose is to remove the unnecessary copper foil to obtain the required circuit diagram. Among them, spray etching is the most commonly used. It sucks the etching liquid into the nozzle by pressurization. Then spray it on the surface of the circuit board, and the etching solution will corrode the unnecessary copper foil. During the etching, since a large amount of etching solution will remain on the surface of the etching solution, after the etching solution is taken out from the etching tank, part of the etching solution will be taken away. , leading to a decrease in the amount of etching solution in the etching tank, and to replenish new etching solution, thereby increasing the etching cost

In addition, during etching, workers need to put the printed circuit board into the etching tank for a period of time, and after etching for a period of time, the product can be taken out. However, this method has the disadvantage of long etching time, which reduces the etching efficiency

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