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Moving end knife and knife load switch

A technology of load switch and switch knife, which is applied in the direction of electric switches, electrical components, circuits, etc., can solve the problems of switch safety and low reliability, and achieve improved reliability and safety, reduced damage, and arc ablation resistance strong effect

Active Publication Date: 2022-04-15
XUJI GRP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a movable end switch blade, which can solve the problem of low switch safety and reliability caused by arc ablation switch blade in the prior art; another purpose of the present invention is to provide a The switch knife type load switch with end switch knife has the advantages of high safety and reliability

Method used

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  • Moving end knife and knife load switch
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  • Moving end knife and knife load switch

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Embodiment Construction

[0037] The specific implementation of the switch knife at the middle moving end and the switch knife type load switch of the present invention will now be described in conjunction with the accompanying drawings.

[0038] Such as figure 1 Shown is an embodiment of the knife-type load switch in the present invention, which is mainly used in power distribution switchgear. The knife-type load switch includes a moving-end knife switch and a static-end knife switch. The moving-end knife switch is rotated through the hinged seat that matches it. Knife 20 contacts, also need to rotate moving end switch knife 10 to make it separate with static end switch knife 20 when needing to open. The switch knife type load switch in the present invention adopts the structure that two movable end switch blades 10 cooperate with the static end switch blade 20 at the same time, the two moving end switch blades 10 are arranged in parallel, and the two moving end switch blades 10 can be Clamp the sta...

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Abstract

The invention relates to the technical field of switch blades, and provides a movable end switch blade and a switch blade type load switch. The movable end switch blade includes: a switch blade body, one end of which is provided with a mounting hole for connecting the switch blade body to a suitable On the matching seat; arc-resistant head, made of arc-resistant material, installed on the end of the switch knife body facing away from the installation hole, used to contact with the static end switch knife to realize the conduction of the circuit; arc-leading body, located at Near the critical position between the switch knife body and the arc-resistant head, it is installed on the side of the switch knife body or the arc-resistant head, or the arc-starting body is formed by a protrusion on the arc-resistant head facing the side of the static end switch knife; the arc-starting body When the switch is closed, it is first close to the static end switch knife, and when the switch is opened, it is last away from the static end switch knife. The moving end switch knife and the switch knife type load switch in the present invention can solve the problem of low switch safety and reliability caused by arc ablation switch knife in the prior art.

Description

technical field [0001] The invention relates to the technical field of knife switches, in particular to a moving-end knife switch and a knife-type load switch. Background technique [0002] The knife switch is one of the switches commonly used in the opening and closing action. It is mainly composed of a fixed static end and a rotating movable end. In the prior art, the moving end knife of the knife switch is composed of T 2 Made of copper, its surface is silver-plated, and an arc will be generated at the moment of contact or separation between the static end and the moving end. The arc will ablate the moving end or the static end, reduce the service life of the switch, and even cause The high temperature causes the contact between the moving end and the static end to soften, making the moving end and the static end stick together, causing the switch to fail to open and close correctly, causing a sharp rise in the internal temperature and pressure of the switch, causing the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H21/54H01H21/12H01H21/18H01H9/30
CPCH01H21/54H01H21/12H01H21/18H01H9/30
Inventor 曹志民刘辉吴小钊刘永庆朱登军董淑莹李克王廷华白维正郑晓果董嘉清
Owner XUJI GRP
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