Reclosing mechanism and method of leakage circuit breaker with clutch mechanism

Abstract

The invention discloses a reclosing mechanism and a method for an earth leakage circuit breaker with a clutch mechanism. A return spring and a device for preventing the return spring from moving to the right end of the actuating lever are sleeved on the lever between the left side wall of the outer frame and the handle driver. Fixing parts; the left part of the axial clutch mechanism is empty with a third turntable located on the right side of the fixed end of the second connecting rod, and a moving plate that is movably connected with the right side wall of the outer frame is arranged above the right part of the axial clutch mechanism. Plate, the front side and the rear side of the moving plate are respectively connected to the front side and the rear side of the third turntable through a first connecting rod; the ejector rod runs through the right part of the axial clutch mechanism and the output shaft of the motor in the radial direction One end protrudes out of the right part of the axial clutch mechanism; press the moving plate downward, the third turntable moves to the left, the bottom of the moving plate touches the outer surface of the second turntable, and the ejector rod does not contact the bottom of the moving plate ; Electric operation and manual operation do not affect each other, ensuring reliable operation of the circuit breaker.

Description

technical field [0001] The invention relates to a molded case circuit breaker with residual current protection in the low-voltage electrical technical field, in particular to a reclosing mechanism of a leakage molded case circuit breaker with an automatic reclosing function. Background technique [0002] The leakage molded case circuit breaker with automatic reclosing function can ensure the continuous, safe and reliable operation of the power system. At present, the existing automatic reclosing mechanism of the molded case circuit breaker includes a handle, at least two large and small gears, a number of stamping parts and a number of standard parts. The motor is connected to the handle through the connecting rod on the eccentric wheel. The rod reciprocates to achieve the purpose of closing and opening the leakage circuit breaker. This reclosing mechanism has the following problems: 1. The gear is difficult to process, and the efficiency is relatively low, which increases ...

AI Technical Summary

Problems solved by technology

This reclosing mechanism has the following problems: 1. The gear is difficult to process, and the efficiency is relatively low, which increases the production cost

2. When installing, the component parts are not a whole structure, and cannot be installed as a whole set of components, and each circuit breaker mechanism needs to be adjusted separately

[0003] The Chinese patent application number is 2013102132814, and the name is "a reclosing mechanism for leakage circuit breakers". Two handle drivers are used. These two handle drivers respectively drive the circuit breaker to open and close, and are rigidly connected to the motor. Its defect is: in the process of tripping or opening and closing of the leakage circuit breaker, if the motor is powered off due to a fault, the handle of the leakage circuit breaker will not be manually operated, and the use of the circuit breaker will be affected

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