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Repulsion mechanism for ultra-fast circuit breaker

A technology of repulsion mechanism and circuit breaker, applied in high-voltage air circuit breakers, circuits, power devices inside switches, etc., can solve the problem of low utilization rate of electromagnetic energy, optimize magnetic field distribution, improve output characteristics, and reduce own weight Effect

Active Publication Date: 2020-04-10
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the structure of the pairing form of the repulsive disk and the coil, the magnetic lines of force diverge to the surrounding space, and its utilization rate of electromagnetic energy is relatively low.

Method used

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  • Repulsion mechanism for ultra-fast circuit breaker
  • Repulsion mechanism for ultra-fast circuit breaker
  • Repulsion mechanism for ultra-fast circuit breaker

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings. Illustrations of the described embodiments are shown in the drawings, like reference numerals referring to like elements. The embodiments described below are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] This patent proposes a new solution for repulsion coils and repulsion disks. The overall idea is to constrain and optimize the magnetic field distribution, increase the local magnetic field density, and improve the utilization efficiency of electromagnetic energy by the repulsion mechanism, thereby reducing volume and cost. refer to Figure 1 to Figure 7 As shown, a repulsion mechanism of the present invention includes a repulsion coil 1 and a repulsion disc 2 connected by a mechanism shaft 3 with a limit ring 3.2.

[0025] The repulsion coil 1 includes a chassis 1.1, an insula...

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Abstract

A repulsion mechanism for an ultra-fast circuit breaker, disclosed by the present invention, comprises a repulsion coil, a repulsion disc and a mechanism shaft. The repulsion coil comprises a chassis,an insulating framework, a coil winding, an iron core and a fixing screw, and the repulsion disc comprises a main disc piece, a repulsion disc framework and a fixing piece for riveting the main discpiece and the repulsion disc framework. Compared with the prior art, the repulsion mechanism is more compact in scheme overall design, the magnetic field distribution of the rapid repulsion mechanismis optimized, the utilization efficiency of the repulsion mechanism for electromagnetic energy is improved, and the requirement for energy storage of a driving loop is lowered, and therefore the sizeand the cost are reduced.

Description

technical field [0001] The patent of the present invention relates to the field of ultra-fast circuit breakers, in particular to a repulsion mechanism for ultra-fast circuit breakers. Background technique [0002] The quick operating mechanism is an operating mechanism made using the principle of eddy current electric repulsion. It is more and more frequently used in fast circuit breakers because of its simple structure and fast opening speed. With the development of the power industry, the technology of high-voltage fast circuit breakers has developed rapidly, and the rapid repulsion mechanism, as the core component of fast circuit breakers, has attracted more and more attention. [0003] The repulsion disk and the repulsion coil are important components of the fast repulsion mechanism. Most of the existing repulsion disks are in the form of discs with a flat contact surface, and the repulsion coils are mostly cake-shaped structures corresponding to the repulsion disk. The...

Claims

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Application Information

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IPC IPC(8): H01H3/28H01H33/38
CPCH01H3/28H01H33/38
Inventor 杨晨光李杰邹顺李博沙新乐
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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