Permanent-magnet pulse contactor

A technology of contactors and permanent magnets, applied in the direction of non-polar relays, etc., can solve the problems of power consumption, slow opening speed, contactor failure, etc., to reduce production costs and use costs, increase use capacity, and not easily damage the contactor head effect
CN1564289AInactive Publication Date: 2005-01-12吕炎
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Patent Information

Authority / Receiving Office
CN ¡ China
Patent Type
Applications(China)
Current Assignee / Owner
吕炎
Publication Date
2005-01-12
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

The contactor includes case, quenching pot, electromagnetism gear inside case. The electromagnetism gear is composed of dynamic iron core, static iron core and magnet coil. Contact gear including dynamic contact, static contact and assistant contact is above the case. Characters are that magnet steel of permanent magnetism is setup on dynamic iron core. impulse current in 0.2 second completes function of contactor without consuming maintenance current so as to save energy more than 99%. Features of the disclosed contactor are: no heat generation from electromagnetism coil, quick detaching contacts, strong arc extinguishing capability, small contact resistance and 12000 gauss high magnetism density.
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Description

technical field

[0001] The invention belongs to the field of electromechanical technology, in particular to a permanent magnet pulse contactor. Background technique

[0002] The contactor is an automatic control electrical appliance, which can be used to frequently connect or disconnect large-capacity AC and DC load circuits at long distances. Contactors can be divided into DC and AC contactors according to the type of current passed through the main contacts. At present, most of the control circuits use AC contactors. When the contactor is working, it not only needs to maintain the current and consume electric energy, but also the current will cause the electromagnetic coil to heat up, which will burn out the electromagnetic coil and cause the contactor to fail, and maintaining the current will generate noise and affect the working environment. Once the power supply voltage disappears or decreases significantly, so that the electromagnetic coil i...

Claims

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