Damping current controller and application

Abstract

The invention provides a damping current controller. The damping current controller comprises an insulating coil framework, a coil, a magnet yoke, a damping contact assembly and a driving assembly; the coil sleeves the outer circumference of the insulating coil framework; the magnet yoke sleeves the outside of the coil; a metal damping tube is inserted into an inner hole of the insulating coil framework; one end of the metal damping tube is opened;an iron core moving contact is arranged in the metal damping tube; an iron core static contact is in insulated and sealed connection with the opening of the metal damping tube; a damping spring sleeves the iron core moving contact and is positioned between the iron core moving contact and the iron core static contact; a driving bracket is provided with an ejector rod hole; one end of the driving ejector rod penetrates through the ejector rod hole, is fixedly connected with the iron core static contact and moves linearly along with the movement of the iron core static contact; and the driving spring sleeves the driving ejector rod and is positioned between the driving bracket and the iron core static contact. The controller has the advantages that one controller has two functions at the same time; the control precision is improved, and the anti-vibration characteristic is achieved; and according to different load characteristics, tripping is avoided during short-time passing of overload current.

Description

technical field [0001] The invention relates to a damping current controller. And the application of the damping current controller in the circuit breaker. Background technique [0002] Circuit breakers are the most widely used products in low-voltage electrical appliances. my country has the largest number of manufacturers in this industry, but they all make a living by imitation. Up to now, no circuit breaker has been independently designed in China. More than 90% of enterprises are in middle and low-level repeated production. "Homogeneity" competition is fierce, and mid-range and high-end products are either entirely dependent on imports, or are assembled domestically by foreign-funded enterprises. [0003] At present, the above-mentioned circuit breakers widely used in China can be divided into two types of products for description, one of which is thermal magnetic (bimetal) circuit breaker, which has the advantages of high breaking capacity, complete variety and modu...

AI Technical Summary

Problems solved by technology

Therefore, the existing domestic liquid magnetic (oil damping) circuit breakers have very narrow uses, mainly in the field of communication.

And many liquid magnetic (oil damping) circuit breaker manufacturers are only low-grade, homogeneous competition

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