Motor

Details Motor Motor

1998-01-28

1999-10-19

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310257, 310266, 310 49R, H02K 3700

Patent

active

059694530

ABSTRACT:
In a motor, a rotor made of a permanent magnet which is equally divided in the circumferential direction to be alternately magnetized to different poles is formed into a cylindrical shape. The first coil, the rotor, and the second coil are sequentially arranged in the axial direction of the rotor. The first outer and inner magnetic poles excited by the first coil are set to oppose the outer and inner circumferential surfaces, respectively, of the rotor, and the second outer and inner magnetic poles excited by the second coil are set to oppose the outer and inner circumferential surfaces, respectively, of the rotor. The rotor is constituted by a rotor shaft, the permanent magnet, and an intermediate ring for holding the rotor shaft and the permanent magnet. The motor has good machinability.

REFERENCES:
patent: 4754183 (1988-06-01), Gerber
patent: 5384506 (1995-01-01), Aoshima
U.S. Patent Application No. 08/831,863, Apr. 1997.
U.S. Patent Application No. 08/994,994, Dec. 1997.
U.S. Patent Application No. 09/022,474, Feb. 1998.
U.S. Patent Application No. 09/027,244, Feb. 1998.
Koshin et al., JP-62-141955 (Abstract), Jun. 25, 1987.
Akio, JP 7-015939 (Abstract), Jan. 17, 1995.

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