Encapsulated magnets in a permanent magnet rotor

Details Encapsulated magnets in a permanent magnet rotor Encapsulated magnets in a permanent magnet rotor

1993-10-15

1996-01-30

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 29598, 335296, H02K 2112

Patent

active

054882605

ABSTRACT:
In a permanent magnet rotor, the circumferential gaps between circumferentially spaced sintered or cast magnets are filled by a plastic or resin material which also coats the outer circumferential surface of the magnets to secure the magnets to the rotor base. The plastic or resin material has a filler of particulate permanent magnet material to thereby provide a more gradual circumferential variation in magnetic flux between circumferentially adjacent magnets.

REFERENCES:
patent: 2299589 (1942-10-01), Reis
patent: 2488729 (1949-11-01), Kooyman
patent: 3169203 (1985-02-01), Lavin et al.
patent: 3246187 (1966-04-01), Iemura
patent: 4864174 (1989-09-01), Kawamura et al.
patent: 4983866 (1991-01-01), Lok
patent: 5121021 (1992-06-01), Ward

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