Safety electric power knife switch

A technology of electric power and switch blades, applied in the field of electric switch blades, can solve problems such as long duration of electric sparks, easy generation of arcs, safety accidents, etc., and achieve the effects of eliminating the generation conditions of arcs, good safety, and consistent operation

Active Publication Date: 2015-10-21
国网浙江三门县供电有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 cl

Method used

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  • Safety electric power knife switch
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  • Safety electric power knife switch

Examples

Experimental program
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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0017] exist figure 1 , figure 2 In the first shown embodiment, the safety electric switch knife includes a base 1, and a static contact seat 2 and a moving contact seat 3 arranged on the base; the static contact seat 2 has a circumferential insulating seal The slideway 20, the insulating side wall of the slideway 20 is provided with a static contact 21 in the same plane as the insulating sidewall, the length of the static contact 21 is smaller than the slideway 20, and the static contact The contact 21 divides the insulating side wall where it is located into two sections; in this embodiment, the static contact 21 is arranged in the groove 200 on the side wall of the slideway 20, and is supported by the support spring in the groove. support, so that the surface of the static contact 21 is pressed against the surface of the movable contact 31 .

[0018] The mo...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): H01H21/54H01H21/12H01H21/18
CPCH01H21/12H01H21/18H01H21/54
Inventor 马人欢
Owner 国网浙江三门县供电有限公司
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