Improved-type leakage protection socket with function of negative wiring protection

Abstract

The invention provides an improved-type leakage protection socket with a function of negative wiring protection. An electromagnetic tripping mechanism comprises a tripping coil, an iron core and a permanent magnet, wherein a rest spring is sleeved on the iron core. A boss is arranged at the front end of the iron core. An input movable contact is clamped by a ribbed groove of an upper tripping device. An output movable contact is pressed by a beam of the upper tripping device. The improved-type leakage protection socket is further provided with a negative wiring disengaged device. The negative disengaged device is provided with a slope plane matched with the boss of the iron core. During negative wiring, the tripping coil generates a magnetic field which is the same as the permanent magnet in field direction so that the iron core and the permanent magnet can be attracted to drive the negative wiring disengaged device to descend, therefore, the input movable contact is pressed so that the input movable contact can be communicated with an output conductor, and the output movable contact is compressed to be separated from the output conductor. The improved-type leakage protection socket with the function of the negative wiring protection has the advantages that under the state of the negative wiring, the output movable contact and the output conductor are rapidly separated through the negative wiring disengaged device, and the improved-type leakage protection socket is safe to use; due to the fact that a rock type selective switch is used for supplying a closed circuit to an artificial resistor and the tripping coil, the artificial resistor and the tripping coil are interlocked, the structure is simple, and motions are reliable.

Description

technical field [0001] The invention relates to a leakage protection socket, in particular to an improved leakage protection socket with reverse wiring protection function. Background technique [0002] The existing leakage protection socket generally includes a housing, a pair of output conductors with conductive sockets, a reset button, a power input terminal, a power output terminal, a pair of input movable contacts connected to the power input terminal, and a power supply output terminal. A pair of output moving contacts connected to each other, double induction coils and circuit boards for detecting leakage currents, and a lock for positioning the reset button hook to make the input moving contacts and output conductors conduct An electromagnetic tripping mechanism that separates the reset button from the lock when there is a leakage current, for example, the invention patent application with application number 201110048951.2. The electromagnetic tripping mechanism incl...

AI Technical Summary

Problems solved by technology

The problem with this kind of leakage protection socket is: the iron core is arranged vertically. Due to the limited depth of the socket, the assembly of internal components is greatly restricted, and the stability and reliability of the locking action are also difficult to guarantee.

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