Releasing system with integration of leakage releasing and electromagnetic releasing

Abstract

The invention relates to a low-voltage circuit terminal appliance, particularly to a releasing system with integration of leakage releasing and electromagnetic releasing for a residual-current circuit breaker. According to the technical scheme, the releasing system is characterized in that a solenoid winds around a periphery of a leakage coil; and the leakage coil and the solenoid share one set of units including a station iron core, a moving iron core, an iron core spring, and a mandril. A magnetic yoke consists of a first side, a second side, and a lower bottom side; and the first side and the second side are arranged at two sides of a coil skeleton. On the basis of the scheme, the system has a small size and miniaturization is realize; with the integrated magnetic yoke, the process becomes simple and the risk of high temperature rising can be reduced; and the moving and static iron cores can be installed from the two sides of the coil skeleton, so that product assembling becomes convenient.

Description

technical field [0001] The invention relates to a low-voltage circuit terminal appliance, in particular to a leakage tripping and electromagnetic tripping system integrating a leakage circuit breaker. Background technique [0002] Leakage circuit breakers are widely used, mainly used in industrial, commercial, residential and other places, mainly used for short circuit overload protection and leakage protection. The electromagnetic system of the leakage circuit breaker provides instantaneous current protection, that is, short-circuit protection, and the leakage tripping system provides leakage protection. The existing products are generally equipped with a leakage tripping system and an electromagnetic tripping system, respectively, using two sets of different coil skeletons, dynamic and static iron cores, Iron core spring and ejector rod. Or it can be realized by lengthening the electromagnetic system and installing leakage coils at the front or rear end of the electromagn...

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Problems solved by technology

Or it can be realized by lengthening the electromagnetic system and setting the leakage coil at the front or rear end of the electromagnetic system. The above method must increase the width or length of the product, and it is difficult to miniaturize the leakage circuit breaker

The two parts, the static contact and the yoke, are connected together by welding, the processing technology is complex, the static contact is easily deformed, and there is a risk of poor welding and temperature rise; and the product is large in size, and the static and dynamic iron core can only be removed from the coil. The frame is loaded on one side, and the product assembly and repair are troublesome and other defects

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