Electromagnetic relay polarized by a permanent magnet

Details Electromagnetic relay polarized by a permanent magnet Electromagnetic relay polarized by a permanent magnet

1990-12-19

1992-06-30

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Polarity-responsive

335 78, 335 81, H01H 5122

Patent

active

051267101

ABSTRACT:
A high-sensitivity electromagnetic relay comprises a magnetic circuit polarized by a permanent magnet, a flux distributor, an operating coil, and a moving core cooperating with the flux distributor by means of an air-gap. A return spring passes completely through the core being inserted between the flux distributor and the external end of a guide tube, which is shaped as a bottle-neck having a widened part housing the core, and a narrow part capable of sliding in an aperture.

REFERENCES:
patent: 3984795 (1976-10-01), Gaskill

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