Circuit breaker contact with self-locking function

Abstract

The invention discloses a circuit breaker contact with self-locking function, comprising a rotary shaft, a contact body and a contact shaft, wherein a front part of the contact body is provided with a contact spot and a rear part of the contact body is provided with a hole through which the contact shaft penetrates, the contact body is mounted inside the rotary shaft via the contact shaft, a contact spring and a slide block are arranged between the contact body and the rotary shaft, the lower end of the contact spring is mounted inside an accommodation groove of the rotary shaft while the upper end of the contact spring is mounted on the slide block, the slide block which is positioned below the root of the contact can be mounted inside a vertical guide groove in a vertically moveable manner, a rear end of the cross section of the contact body is in the shape of circular arc, a side of the slide block, towards the rear end of the contact body, is a slope, an upper bottom surface of the slide block is smaller than a lower bottom surface, and the slope is in arc transition with the upper bottom surface. The circuit breaker contact can effectively prevent secondary contact between contacts and enhance the analysis capacity of the circuit breaker.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a circuit breaker contact. Background technique [0002] Low-voltage electrical appliances are very important products in national production and life. They play a role in protection and control of the transmission and distribution of electric energy. They penetrate into almost all fields of electricity consumption and are an important guarantee for safe electricity use. There are many types of low-voltage electrical appliances, with a wide range of areas and large quantities, and different structures. Especially after entering the 1990s, the rapid development of social production requires low-voltage electrical products to have higher performance, smaller volume, and more compact internal mechanisms. [0003] At present, in order to improve the breaking capacity of the circuit breaker, major manufacturers at home and abroad have designed the contacts of the circuit breaker into a...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing circuit breaker contacts that cannot prevent the secondary contact between the contacts and have poor breaking capacity, the present invention provides a circuit breaker that can effectively prevent the secondary contact between the contacts and improve the breaking capacity of the circuit breaker. circuit breaker contacts with self-locking function

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