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Vacuum circuit breaker contact system

A technology of vacuum circuit breaker and contact system, which is applied to high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of large center distance between adjacent moving and static contacts, increase the effective space for arc diffusion, and reduce the breaking capacity, and achieve increased Effective space, improved reliability and stability, reduced volume effect

Active Publication Date: 2017-04-05
SHANGHAI LIANGXIN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a vacuum circuit breaker contact system for the existing vacuum circuit breaker contact system, where the vacuum interrupter is installed The structure is changed to increase the effective space for arc diffusion, increase the center distance between adjacent moving and static contacts, and improve the reliability and stability of breaking

Method used

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  • Vacuum circuit breaker contact system
  • Vacuum circuit breaker contact system
  • Vacuum circuit breaker contact system

Examples

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Embodiment

[0023] As attached figure 1 As shown, a vacuum circuit breaker contact system includes a mounting base a. A vacuum interrupter b is installed in several cavities a01 of the mounting base a, wherein the mounting base a has a cavity a01 The movable end b01 of the vacuum interrupter b inside and the static end b02 of the vacuum interrupter b in the adjacent cavity are arranged side by side;

[0024] The cavity a01 is a stepped cavity, and the end of the cavity where the static end b02 of the vacuum interrupter is installed is a big end.

[0025] As attached figure 2 with 3 As shown, the vacuum interrupter b includes a static flange 1, a conductive row 2, a static contact 3, a moving contact 4, a shielding cylinder 5, an insulating tube 6, a corrugated tube 7, a guide sleeve 8 and a moving conductive rod 9. It is characterized in that the outer diameter of the static contact 3 and the movable contact 4 is not less than the outer diameter of the insulating tube 6.

[0026] The static co...

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Abstract

A vacuum circuit breaker contact system comprises an installation base seat (a). Vacuum arc-extinguishing chambers (b) are disposed in a plurality of cavities (a01) of the installation base seat (a). The vacuum circuit breaker contact system is characterized in that movable ends (b01) of the vacuum arc-extinguishing chambers (b) of the cavities (a01) of the installation base seat (a) and static ends (b02) of the vacuum arc-extinguishing chambers (b) in the adjacent cavities are arranged side by side. An installation structure of the vacuum arc-extinguishing chamber is changed, effective space of arc diffusion is increased and a center distance of adjacent movable and static contacts is increased, so breaking reliability and stability can be enhanced; and product cost can be reduced and product volume can be lowered.

Description

Technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and specifically relates to a vacuum circuit breaker contact system, which improves the large current breaking capacity of the circuit breaker in a low-voltage state. Background technique [0002] The vacuum interrupter, also known as the vacuum switch tube, is the core component of the medium and high voltage power switch. Its main function is to quickly extinguish the arc and suppress the current after the medium and high voltage circuit is cut off through the excellent insulation of the vacuum in the tube, so as to avoid accidents and Accidents are mainly used in power transmission and distribution control systems, but also in metallurgy, mining, petroleum, chemical, railway, broadcasting, communications, industrial high-frequency heating and other power distribution systems. It has the characteristics of energy saving, material saving, fireproof, explosion-proof, small si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/664
CPCH01H33/664
Inventor 付春秋李柏刘德林
Owner SHANGHAI LIANGXIN ELECTRICAL