Vehicle mounted motor with rotor having ferrite magnet section w

Details Vehicle mounted motor with rotor having ferrite magnet section w Vehicle mounted motor with rotor having ferrite magnet section w

1999-04-09

1999-11-16

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310216, 310261, H02K 2112

Patent

active

059863749

ABSTRACT:
A motor mounted in a vehicle having ferrite magnet section formed as a rotor core. The ferrite magnet section has a plurality of recesses, or through holes, circumferentially provided along an axial direction in a space-apart relation. A plurality of permanent magnet pieces are respectively fitted in the corresponding recess of the ferrite magnet section. The permanent magnet pieces are made of a permanent-magnetic material which has greater ferromagnetic property than that of the ferrite magnet section.

REFERENCES:
patent: 2961555 (1960-11-01), Towne
patent: 3979822 (1976-09-01), Halm
patent: 4127786 (1978-11-01), Volkrodt
patent: 4131988 (1979-01-01), Finegold
patent: 4625135 (1986-11-01), Kasabian
patent: 5066880 (1991-11-01), Banon
patent: 5397951 (1995-03-01), Uchida et al.
patent: 5563463 (1996-10-01), Stark
patent: 5684352 (1997-11-01), Mita et al.
patent: 5811904 (1998-09-01), Tajima et al.

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