Leakage tripper

Abstract

The invention discloses a leakage tripper, comprising a machine frame, and a button, a rocker arm, a first push rod and a first lock catch which are arranged in the machine frame, wherein the two ends of the rocker arm are respectively in linkage with the button and the first push rod, and the first push rod and the first lock catch constitute a first releasable buckle; the leakage tripper also comprises a magnetic flux converter, a jump pin, a second lock catch, a second push rod and a lever, wherein the magnetic flux converter is used for receiving a residual current signal; the jump pin is arranged in opposite to the magnetic flux converter; the second lock catch and the jump pin constitute a second releasable buckle; the second push rod is arranged in the machine frame; and the upper end of the lever is in push-press fit with the second push rod, the lower end of the lever pushes against the second lock catch to constitute a third releasable buckle. Compared with the prior art, the leakage tripper has the beneficial effects that a free tripping mechanism is adopted as the mechanism of the tripper, and reliable tripping can be realized under the existence of leakage current even if a reset button is manually pressed on.

Description

technical field [0001] The invention belongs to the field of low-voltage electrical appliances, in particular to a leakage release with a residual current protection circuit breaker. Background technique [0002] The existing leakage release with residual current protection circuit breaker, as shown in patent 03228234.6, has the advantages of simplifying the structure and shortening the motion transmission route. According to the description of the leakage release, there are buttons, rocker arms and push plates in the frame , the two ends of the rocker arm are respectively linked with the button and the push plate, the push plate can slide horizontally in the frame, the push block is installed on the mandrel of the push plate, and can be linked with the push plate to realize Coupled with circuit breaker trip mechanism. The lever is installed on the push plate and can make a rotary movement around the arc surface of the push plate; the main force lever is provided with a mai...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned patented structure has the phenomenon of high triggering energy required by the relay and unreliable tripping. When the button is pressed, if there is a leakage current at this time, after the relay receives the residual current signal and operates, its push rod pushes the reset rod to lock The buckle and the jumper are released, the lever swings to the left under the tension of the main spring, presses down the jumper and drives the push plate, and at this time the push plate is locked by the button, the linkage between the push block and the push plate is a linkage relationship, the push block The tripping mechanism of the circuit breaker cannot be driven, so the reliable tripping of the circuit breaker cannot be realized

Images