Electromagnetic device

Abstract

The invention relates to the field of low-voltage electric appliances, in particular to an electromagnetic device, which comprises a coil assembly, a static iron core, a movable iron core assembly anda spring, wherein the static iron core and the movable iron core assembly are respectively arranged in the middle of the coil assembly; two ends of the spring are in limiting match with the static iron core and the movable iron core assembly; two ends of the movable iron core assembly are respectively a movable iron core detection end and a movable iron core driving end; the electromagnetic device further comprises a detection structure which is in non-contact fit with the detection end of the movable iron core. When the movable iron core assembly is located at the initial position, the detection structure outputs a first signal; when the movable iron core assembly moves to an action position after acting, the detection structure outputs a second signal after the movable iron core detection end moves relative to the detection structure; according to the electromagnetic device, the detection structure can detect the position of the movable iron core assembly in real time.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to an electromagnetic device. Background technique [0002] Both the shunt release and the undervoltage release are important control components of the circuit breaker; among them, the shunt release can realize the remote opening function of the circuit breaker, and the undervoltage release can realize voltage protection. Drive the circuit breaker to break the circuit when the system voltage is undervoltage. [0003] The service life is an important parameter of the shunt release and undervoltage release. According to the technical requirements related to the Internet of Things, it is necessary to record and feed back the status of the circuit breaker accessories (including undervoltage, shunt release, and closing electromagnet) in real time. The current service life and the remaining number of uses; however, the existing shunt release and undervoltage release canno...

AI Technical Summary

Problems solved by technology

[0003] The service life is an important parameter of the shunt release and undervoltage release. According to the technical requirements related to the Internet of Things, it is necessary to record and feed back the status of the circuit breaker accessories (including undervoltage, shunt release, and closing electromagnet) in real time. The current service life and the remaining number of uses; however, the existing shunt release and undervoltage release cannot meet the above needs

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