Single Phase Permanent Magnetic Contactor

Abstract

The invention discloses a single-phase permanent magnetic contactor, which comprises an insulation framework, a static end conducting plate, a vacuum switch tube, a movable end conducting plate and a closing / breaking operation system, wherein the static end conducting plate, the vacuum switch tube, the movable end conducting plate and the closing / breaking operation system are positioned and arranged in the insulation framework, the vacuum switch tube is arranged between the static end conducting plate and the movable end conducting plate, a static contact and a movable contact arranged on the vacuum switch tube are respectively, correspondingly and electrically connected with the static end conducting plate and the movable end conducting plate, the closing / breaking operation system comprises a permanent magnetic driving mechanism and a hand separating driving mechanism, and the permanent magnetic driving mechanism is adopting for driving or the permanent magnetic driving mechanism is driven by the hand separating driving mechanism so that the movable contact and the static contact are closed and separated. The contactor has four closing / breaking work modes including electromagnetic closing and permanent magnetic suction, electromagnetic breaking and permanent magnetic suction, manual closing and permanent magnetic suction, and manual breaking and permanent magnetic suction, and the four work modes can be used in a mutually staggered way, so that the production assembly of the contact is simple, the debugging is not needed, the suction power is low, the service life is long, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of contactors, in particular to a single-phase permanent magnetic contactor. Background technique [0002] There are mainly two types of existing contactor structures: (1) Electromagnetic contactor: it uses a coil to flow current to generate a magnetic field to close the contacts to achieve the purpose of controlling the load. The electromagnetic contactor can not only switch on and off the circuit, but also has the function of low voltage release protection, which is suitable for frequent operation and remote control. However, the electromagnetic contactor has a large pull-in power, and because it is always charged during long-term pull-in, it will cause a short service life of the coil; (2) Permanent magnetic contactor: it uses the principle of magnetic poles that repel each other and attract each other , a micro-power contactor formed by replacing the traditional electromagnet drive mechanism with a perm...

AI Technical Summary

Problems solved by technology

However, the electromagnetic contactor has a large pull-in power, and because it is always charged during long-term pull-in, it will cause a short service life of the coil; (2) permanent magnetic contactor: it uses the principle of magnetic poles that repel each other and attract each other , a micro-power contactor formed by replacing the traditional electromagnet drive mechanism with a permanent magnet drive mechanism

Compared with the transmission contactor, the permanent magnet contactor has the advantages of energy saving, no temperature rise, no vibration of the contact, long life, and strong anti-electromagnetic interference ability; but at the same time, the permanent magnet contactor also has the advantages of large volume and complex structure. , Installation, use and transportation are inconvenient and other defects

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