Vibrator motor having nonmagnetic armature cores

Details Vibrator motor having nonmagnetic armature cores Vibrator motor having nonmagnetic armature cores

1999-04-22

2000-01-04

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, H02K 706

Patent

active

060113332

ABSTRACT:
A vibrator motor has a generally sector-shaped eccentric armature rotor that has a nonmagnetic body including core parts, around which armature coils are individually wound. The core parts are disposed at an even pitch angle, but within a 180.degree. angular range, about the rotational axis of the rotor. A rotor body of one embodiment consists of a first part and a second part that includes the core parts and the first part is made of a synthetic resin and the second part is made of a synthetic resin or a nonmagnetic but electrically-conductive metal. A rotor of an additional embodiment has a single-piece body of a synthetic resin that integrally has the core parts.

REFERENCES:
patent: 4468579 (1984-08-01), Suzuki
patent: 5036239 (1991-07-01), Yamaguchi
patent: 5107155 (1992-04-01), Yamaguchi
patent: 5327035 (1994-07-01), Sunaga
patent: 5341057 (1994-08-01), Yamaguchi et al.
patent: 5373207 (1994-12-01), Yamaguchi et al.
patent: 5471103 (1995-11-01), Fujii
patent: 5889349 (1999-03-01), Yasuda
patent: 5903076 (1999-05-01), Suyama

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