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Compact electromagnetic repulsion operating mechanism, and three-phase switch using same

A technology of electromagnetic repulsion and operating mechanism, applied in the direction of electric switch, protection switch operation/release mechanism, protection switch, etc., can solve the problem that the size compatibility and interchangeability of ordinary spring-operated circuit breaker handcart and fast mechanical switch handcart cannot be achieved. , Increase the volume and size of the fast mechanical switch, can not meet the installation requirements of the switch cabinet, etc., to achieve the effect of improving the electromagnetic conversion efficiency, compact structure, and reducing the volume

Pending Publication Date: 2021-11-19
CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the medium and low voltage field of the AC system, the three-phase switches are mainly arranged in the switchgear. The size of the switchgear cabinet is compact, especially in the height direction. Arranged side by side at the lower part of the three-phase vacuum interrupter, the overall height of the switch is relatively large, which cannot meet the installation requirements of conventional switch cabinets
In addition, the electromagnetic repulsion mechanism needs to be equipped with a trigger circuit, including components such as trigger capacitors and thyristors, which further increases the size of the fast mechanical switch, and it is basically impossible to realize ordinary spring-operated circuit breaker handcarts and fast mechanical switch handcarts through traditional structural arrangements. Size Compatibility and Interchangeability

Method used

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  • Compact electromagnetic repulsion operating mechanism, and three-phase switch using same
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  • Compact electromagnetic repulsion operating mechanism, and three-phase switch using same

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Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 1 , 2 , 3, 4, and 5, a compact electromagnetic repulsion operating mechanism is used to control the opening and closing between the moving contact and the static contact. It includes a pull rod 1, an upper coil disk assembly 2, a repulsion disk 3, The lower coil plate assembly 4, the hydraulic shock absorber 5 and the rocker arm assembly 6; wherein,

[0041] The repulsion disk 3 is movable up and down between the upper coil disk assembly 2 and the lower coil disk assembly 4, and is fixedly connected with the pull rod 1;

[0042] The middle position of the rocker arm assembly 6 is hinged on a fixed body through a rotating shaft 10;

[0043] The upper end of the pull rod 1 is used to connect with the moving contact, and the lower end is hinged to one end of the rocker arm assembly 6;

[0044] The hydraulic shock absorber 5 is located above the other end of the rocker arm assembly 6 and is adapted to abut against the rocker arm assembly 6 when the repulsi...

Embodiment 2

[0076] Such as figure 1 , 2 , 3, 4, and 5 show a three-phase switch, which includes three compact electromagnetic repulsion operating mechanisms as described in Embodiment 1, and the rotating shafts 10 of the three compact electromagnetic repulsion operating mechanisms are linked.

[0077] In this embodiment, adjacent rotating shafts 10 are linked through a shaft sleeve.

[0078] Specifically, the linkage of the rotating shafts 10 of the three-phase switch of the present invention realizes the consistency of the opening and closing states of the three-phase switches of the circuit breaker, and effectively improves the consistency of the opening and closing actions of the three-phase switches.

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Abstract

The invention discloses a compact electromagnetic repulsive force operating mechanism, and a three-phase switch using the same. The compact electromagnetic repulsive force operating mechanism comprises a pull rod, an upper coil panel assembly, a repulsive force disc, a lower coil panel assembly, a hydraulic buffer and a rocker arm assembly. The repulsive force disc is positioned between the upper coil panel assembly and the lower coil panel assembly in a manner of moving up and down, and is fixedly connected with the pull rod; the middle position of the rocker arm assembly is hinged to a fixed body through a rotating shaft; the upper end part of the pull rod is used for being connected with a moving contact, and the lower end part of the pull rod is hinged with one end part of the rocker arm assembly; and the hydraulic buffer is located above the other end of the rocker arm assembly and is suitable for abutting against the rocker arm assembly in the descending process of the repulsive force disc so as to play a buffering role. The hydraulic buffer and the repulsive force mechanism are arranged in parallel, so that the overall height of the quick mechanical switch is reduced, and the quick mechanical switch meets the installation requirement of a conventional switch cabinet.

Description

technical field [0001] The invention relates to a compact electromagnetic repulsion operating mechanism and a three-phase switch using the same. Background technique [0002] The fast mechanical switch based on the electromagnetic repulsion mechanism has the advantages of simple structure and fast opening and closing speed, and has broad application prospects in many fields such as power system fault current limiting, power quality control, DC circuit breakers, and rapid arc extinguishing, especially in The application in the communication system is more and more popular. [0003] However, in the medium and low voltage field of the AC system, the three-phase switches are mainly arranged in the switchgear. The size of the switchgear cabinet is compact, especially in the height direction. Arranged side by side at the lower part of the three-phase vacuum interrupter, the overall height of the switch is relatively large, which cannot meet the installation requirements of conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H9/26
CPCH01H71/10H01H71/1009H01H71/1045
Inventor 王智勇和帅杨兵陈新吴中友李钊李德召刘少飞
Owner CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP