Electromagnetic actuator with composite core assembly

Details Electromagnetic actuator with composite core assembly Electromagnetic actuator with composite core assembly

1998-10-28

2000-04-11

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

336234, H01F 708

Patent

active

060492643

ABSTRACT:
A core assembly for an electromagnet includes a plurality of stacked laminations extending along a stacking axis. The laminations each having generally the same thickness in a direction along the stacking axis. A solid core member has opposing ends. The core member is disposed generally centrally with respect to the plurality of stacked laminations such that each end of the core member contacts a lamination of the plurality of laminations. The core member has a thickness in a direction along the stacking axis substantially greater than the thickness of a lamination. The core member also has an aperture therethrough disposed generally perpendicular to the stacking axis for receiving a shaft of an armature assembly.

REFERENCES:
patent: 3577107 (1971-05-01), Ditzingen et al.
patent: 3577109 (1971-05-01), Foster et al.
patent: 4009460 (1977-02-01), Fukui et al.
patent: 4818966 (1989-04-01), Miyamoto et al.
patent: 5371486 (1994-12-01), Yamada et al.
patent: 5636601 (1997-06-01), Moriya et al.
patent: 5703559 (1997-12-01), Emmerich et al.

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