Socket type ground fault circuit interrupter

Abstract

The invention relates to a socket type ground fault circuit interrupter, which comprises a reset key, a reset mechanism, a conductive component from a power input side to a load side, a leakage signal detection circuit, and an electromagnetic trip mechanism controlled by the leakage signal detection circuit to act, wherein the reset mechanism comprises a reset bracket and a bracket reset mechanism. A short-circuit conducting strip supported by an elastic piece is arranged on the reset bracket, and the contact pressure between a movable contact and a stationary contact is guaranteed, so that the contact resistance is low, and even if the stationary contact setting position is slightly deviated, the short-circuit conducting strip can be self-adjusted and self-adapted, and the operating reliability is improved. In addition, the socket type ground fault circuit interrupter is provided with a reverse wiring protection device comprising an electrically controlled normally closed reverse protection switch, a reset key locking mechanism and a control circuit, so that when the circuit is reversely connected, power is not output from the socket type ground fault circuit interrupter, the prompt and safety protection functions are realized, and the potential safety hazard is eliminated.

Description

technical field [0001] The invention relates to a socket type ground fault circuit breaker. Background technique [0002] The socket-type ground fault circuit breaker (referred to as GFCI) can not only provide power to the load through the socket on the upper cover, but also supply power to the load connected to it through the load connection component, so it is widely used. The specific structure of the current socket-type ground fault circuit breaker mostly includes a housing, a leakage signal detection circuit, an electromagnetic tripping mechanism controlled by the leakage signal detection circuit, a reset button, a reset mechanism, a grounding component, a power input side to The conductive component on the load side, the conductive component from the power input side to the load side includes a power input connection component and a load connection component, the load connection component includes a wiring output component and a socket output component, and the reset m...

AI Technical Summary

Problems solved by technology

However, since the pair of movable contacts of the existing GFCI is set at the free end of a pair of conductors in the conductive assembly, and the other end of the conductor is fixed, the processing accuracy of the accessories is high, and the stability of the product quality is not particularly high. Ideal, so the two moving contacts are prone to unreliable contact, causing the receptacle ground fault circuit breaker to not work properly

In addition, because the existing ordinary GFCI is very similar to the power input connection component and the load connection component, it often occurs that the power line and the load connection are reversed during installation and use. At this time, the GFCI does not have the leakage protection function and It is only equivalent to an ordinary socket, and there is a hidden danger of personal and property damage due to electric shock

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