Safety electric power knife switch

Abstract

The invention provides a safety electric power knife switch, comprising a pedestal, a static contact seat, and a moving contact seat. The static contact seat is interlay provided with a circumferential insulation enclosed sildeway, the insulation side wall of which is provided with a static contact which is parallel to the insulation side wall; the static contact divides the insulation side wall into two segments; the moving contact is capable of moving relative to the pedestal; the moving contact can be inserted and pulled out in the slideway on the moving contact seat in the movable range; the outer surface of the moving contact is totally matched with the inner wall of the slideway; the front segment of the moving contact forms an insulation segment; the rear end of the front insulation segment is connected to a conductive segment; when the moving contact is moved to a switching on position, the conductive segment is totally matched with the static concat; and when the moving contact is moved to a switching on position, the conductive segment is totally disconnected from the static contact. The safety knife switch is not only easy in operation and high in safety, and can effectively prevent the production of the electric arc during the process of switching on and off.

Description

technical field [0001] The invention relates to the field of electric facilities, in particular to an electric switch blade. Background technique [0002] In the field of power facilities, the electric switch knife is a switch component that is very easy to operate and install, so it is widely used. [0003] However, due to the large current on and off of the electric switch knife, when the distance between the static contact and the moving contact is small during the closing or opening process, arcs are easily generated; if the operation is not skilled, the The electric spark lasts for a long time, and may escape outside, thus causing a safety accident. Contents of the invention [0004] In view of the above problems, the object of the present invention is to provide a safe electric switch knife, which is not only easy to operate, but also can effectively avoid the generation of arc during closing and opening, and has high safety. [0005] The technical solution ado...

AI Technical Summary

Problems solved by technology

[0003] However, due to the large current on and off of the electric switch knife, when the distance between the static contact and the moving contact is small during the closing or opening process, arcs are easily generated; if the operation is not skilled, the The electric spark lasts for a long time and may escape, causing safety accidents

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