Electromagnetic device of the flat package type

Details Electromagnetic device of the flat package type Electromagnetic device of the flat package type

1978-12-08

1980-09-16

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335 80, H01F 702, H01H 5122

Patent

active

042232902

ABSTRACT:
A miniaturized electromagnetic device is disclosed, which is applicable to an electromagnetic relay of the flat package type.
The electromagnetic device comprises a magnetic core having the configuration of the capital letter H, a coil wound round the magnetic core, and a pair of magnetic members for alternatingly forming two closed magnetic circuits in cooperation with said magnetic core, said magnetic members being formed in one-piece with the aid of connecting members of non-magnetic material, one of said magnetic members including a permanent magnet, and each tip of said magnetic member confronting the corresponding tip of said magnetic core and the clearance therebetween being changeable by the magnetic force generated therebetween as said coil is energized.

REFERENCES:
patent: 3047691 (1962-07-01), Kohoutek et al.
patent: 3048678 (1962-08-01), Reed et al.
patent: 3906416 (1975-09-01), Sprando
patent: 3993971 (1976-11-01), Ono et al.

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