Arc striking channel of circuit breaker

Abstract

The invention relates to the technical field of circuit breaker arc extinguishing, in particular to an arc striking channel of a circuit breaker. The arc striking channel comprises an outer shell; a run-on plate is fixedly arranged in the outer shell; two arc extinguishing chambers are formed between the upper and lower surfaces of the end tab and the outer shell; a partition is arranged at one end of each arc-extinguishing chamber; an arc striking groove is formed in each partition plate; arc striking channels are arranged at one ends, close to the partition plates, of the two arc extinguishing chambers; an exhaust groove communicated with the arc striking channel is integrally formed in the outer shell. The two arc striking channels are divided into two isolated parts by the outer shelland the arc striking plate; the arc striking channels are formed between the side, away from the arc extinguishing chamber, of the partition plate and the inner wall of the arc striking plate, and each of the arc striking channels is in an L shape. The partition plate and the outer shell are used for isolating the two arc striking channels to form the two arc striking channels independent of eachother, and therefore arc extinguishing is accelerated, and the sectioning capacity of the circuit breaker is improved.

Description

technical field [0001] The invention relates to the technical field of circuit breaker arc extinguishing, in particular to an arc striker of a circuit breaker. Background technique [0002] The connection and disconnection of the circuit breaker depends on the moving contact and the static contact. The static contact is generally fixed on the base, and the moving contact is installed movable. Or the purpose of opening the circuit breaker. When the moving contact is separated from the static contact, an arc will be generated, and the arc needs to be extinguished quickly to prevent it from re-igniting. [0003] Existing circuit breakers usually only have one arc striker when they are in use, which leads to slow arc extinguishment, which may cause arc reignition and affect the breaking capacity of the circuit breaker. Therefore, we propose a circuit breaker arc striker with Good solution to the above disadvantages. Contents of the invention [0004] The object of the prese...

AI Technical Summary

Problems solved by technology

[0003] Existing circuit breakers usually only have one arc striker when they are in use, which leads to slow arc extinguishment, which may cause arc reignition and affect the breaking capacity of the circuit breaker. Therefore, we propose a circuit breaker arc striker with Good solution to the above disadvantages

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