Moving contact system of circuit breaker

A technology for moving contacts and circuit breakers, which is used in circuit breaker contacts, circuit breaker components, and contact heating/cooling, etc., can solve the problems of low conduction efficiency and temperature rise of the contact system, and improve the heat dissipation effect. , the effect of reducing the overall temperature rise and increasing the current-carrying area

Pending Publication Date: 2022-01-28
JIANGSU LUOKAI MECHANICAL & 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 circuit breaker moving contact system with copper foil laminated soft connection to solve the problem of high temperature of the contact system and low conductivity

Method used

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  • Moving contact system of circuit breaker
  • Moving contact system of circuit breaker
  • Moving contact system of circuit breaker

Examples

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Embodiment Construction

[0029] The invention proposes a novel movable contact system, the structure of which includes a movable contact, a soft connection and a connecting plate.

[0030] according to Figure 4 In one embodiment of the present invention, the moving contact system includes a moving contact 21, a soft connection 213 and a connecting plate 214, which are connected in sequence to form a conductive path, wherein the moving contact 21 includes a moving contact 211 and a moving contact arm 212, Both are welded together to form the first welding location 21a. When the switch is closed, the movable contact 211 forms electrical contact with the static contact system 2 . The flexible connection 213 is formed by stacking copper foils, with welded and compacted parts A at both ends, and the middle flexible part B retains the original soft state, forming a conductor with both ends compacted into rigidity and the middle can be flexibly bent to meet the requirements of the moving contact system. f...

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Abstract

The invention provides a moving contact system of a circuit breaker, and mainly solves the problems of high temperature rise and low conduction efficiency of a contact system. The moving contact system comprises a moving contact, a moving contact arm, a flexible connector and a connecting plate, the moving contact and the moving contact arm are welded together to form a conduction path, the moving contact arm, the flexible connector and the connecting plate are sequentially connected to form an electrical path, and the electrical path comprises a conductor formed by laminating a plurality of layers of copper foils, so that the moving contact system can freely act during switching on and off. The flexible connector moving contact with the copper foils is designed to replace the existing braided wire flexible connector; therefore, use space is greatly saved, the current-carrying area of the flexible connector is increased, the heat dissipation effect is improved, the overall temperature rise of the circuit breaker is greatly reduced, and the use reliability of the circuit breaker is ensured.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a contact system of the circuit breaker Background technique [0002] The low-voltage circuit breaker is composed of a moving contact system 1, a static contact system 2, an arc extinguishing system 3, a housing 4, an operating mechanism 5, and a control and protection unit 6, etc. [0003] The operating mechanism 5 drives the moving contact system 1 to contact or separate from the static contact system 2 to realize the closing and opening of the main circuit. After the tripping mechanism in the circuit is tripped, the moving contact system 1 and the static contact system 2 are opened, and an arc is generated during the opening process, which enters the arc extinguishing chamber 3 and is extinguished. [0004] In the prior art, the movable contact system includes the movable contact 11, the soft connection 113 and the connecting plate 114 which are sequentially connected to form a conductive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H73/04H01H73/20H01H1/62
CPCH01H73/04
Inventor 潘斌华李勇朱小民
Owner JIANGSU LUOKAI MECHANICAL & ELECTRICAL
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