Wire protection tubes for equipment used in the wet process of printed circuit boards

Abstract

The invention discloses a wire protection tube for equipment used in the wet process of printed circuit boards. The wires of the equipment used in the wet process of printed circuit boards are covered with protective tubes. The initial section of the protective tube is curved upwards, so that the protective tube can Effectively prevent the liquid from entering the protective tube, and the lowest part of the entire protective tube is provided with a water outlet, so that even if there is liquid in the protective tube, it can also be discharged from the water outlet. Therefore, the wire protection of the equipment used in the wet process of printed circuit boards The tube can effectively avoid electrical faults and safety accidents, and has a simple structure and is easy to implement.

Description

technical field [0001] The invention relates to a protective sleeve, in particular to a protective tube which is used to protect electric wires of equipment during the wet process of printed circuit boards and is sheathed on the outside of the electric wires. Background technique [0002] The process of printed circuit board includes "dry process" and "wet process". The so-called "wet process" refers to the need to come into contact with liquid during the processing of printed circuit boards. For example, it is necessary to spray the substrate surface during the development process developer, while in the water washing unit, it is necessary to spray cleaning fluid on the printed circuit board, and so on. Due to the use of various chemical liquids in the wet process, the wires of the equipment used in the wet process are easily corroded. In order to protect the wires and avoid electrical failures, protective tubes (such as bellows) are generally placed outside the wires of th...

AI Technical Summary

Problems solved by technology

Due to the use of various chemical liquids in the wet process, the wires of the equipment used in the wet process are easily corroded. In order to protect the wires and avoid electrical failures, protective tubes (such as bellows) are generally placed outside the wires of the equipment, but this method It does not play a very good protective role, mainly because the starting end of the protective tube is upward and is generally not sealed or the seal is not good. The liquid can easily enter the tube from the starting end of the protective tube. Cause electric shock, leakage, tripping and other electrical faults, causing many safety hazards

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