Safety circuit breaker

Abstract

The application discloses a safety type circuit breaker. The safety type circuit breaker comprises a circuit breaker main body and self-protection wiring terminals. The self-protection wiring terminals are symmetrically arranged on the left side, the right side, the front side and the rear side of the circuit breaker main body; and each self-protection wiring terminal at least comprises a terminalcavity, an opening and closing device, a wire clamping terminal and an operating device. According to the safety type circuit breaker, the opening and closing device is closed in a normal state so asto protect the wiring jack from entering sundries; during wiring, the opening and closing device is firstly opened to expose the wiring jack, then the opening and closing device is closed again afterwiring is completed; at the moment, the opening and closing device cannot be completely closed, and only a swing baffle of the opening and closing device needs to clamp a wire. The safety type circuit breaker provided by the invention is simple to operate. Opening and closing of the opening and closing device can be achieved through an operation handle, and clamping of the wire clamping terminalcan also be achieved through the operation handle. According to the safety type circuit breaker, the damping of leftward movement of the operating device can be adjusted.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a safety circuit breaker. Background technique [0002] Leakage circuit breaker is a switch that can automatically operate when the leakage current in the circuit exceeds a predetermined value, mainly to prevent personal electric shock. Some circuit breakers are also integrated with residual current protection. In the event of leakage, the tripping device operates to cut off the power of the circuit breaker. [0003] When the circuit breaker in the prior art connects the wires, the insulation sheath of the wires is peeled off, and then the conductive metal core is inserted into the terminal for fixing. But it has the following problems: 1. The fixing bolts of the connecting terminal are also kept in communication with the outside world through the jack for inserting the screwdriver, causing electric shock hazards; There is a possibility of water or other metal objects ...

AI Technical Summary

Problems solved by technology

But it has the following problems: 1. The fixing bolts of the connecting terminal are also kept in communication with the outside world through the jack for inserting the screwdriver, causing electric shock hazards; There is a possibility of water or other metal objects entering the hole where the wire is inserted and causing an electric shock accident

[0004] The patent with the publication number CN106783416A discloses a safety leakage circuit breaker and its use method. The terminal 3 includes a fixed terminal 31 and a U-shaped sliding terminal 32 to clamp the wire, but the wiring hole 14b for inserting the wire Without any protective measures, the gap between the wire and the wiring hole 14b after the wire is inserted has a large potential safety hazard

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