Rotor for a permanent magnet AC motor

Details Rotor for a permanent magnet AC motor Rotor for a permanent magnet AC motor

1981-06-10

1983-06-14

Gonzales, John

Electrical generator or motor structure

Dynamoelectric

Rotary

310162, 310263, H02K 2114

Patent

active

043885454

ABSTRACT:
A rotor for a self-starting permanent magnet AC motor is comprised of a permanent magnet disk mounted on a shaft of non-magnetic material. The magnet has a direction of magnetization parallel to the axis of the shaft resulting in two poles, one on each face of the magnet. Two disks of current carrying material are mounted on the shaft on either side of the magnet to act as starting coils. Pole pieces are mounted on the shaft and surround the starting disks. Claw-like projections spaced about and extending from the periphery of the pole pieces extend inwardly over the periphery of the magnet and starting disks. The claw-like projections from each pole piece are interlaced forming rotor poles of alternating polarity.

REFERENCES:
patent: 2444164 (1948-06-01), Kohlhagen
patent: 2836743 (1958-05-01), Braun
patent: 3163788 (1964-12-01), Powers
patent: 3309547 (1967-03-01), Woodward
patent: 3495113 (1970-02-01), Haydon
patent: 3571637 (1971-03-01), Henningsen et al.

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