Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-05-05
2000-05-09
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
310257, 310156, 310 51, H02K 3714
Patent
active
060608005
ABSTRACT:
A claw pole type synchronous motor has two cylindrical stator assembles arranged back-to-back and a magnetized rotor provided coaxially with the stator assemblies. The rotor has a length larger than the total thickness of the stator assemblies and always covers the inner peripheral surfaces of the stator assemblies so as to reduce vibration due to axial movements of the rotor with respect to the stator assemblies. The motor also has an electrical phase angle defined between the center lines of the corresponding claw poles of the adjacent stator assemblies made equal to the theoretical electrical phase angle minus an electrical angel within a range more than 0.degree. and less than 10.degree..
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patent: 5177384 (1993-01-01), Furuki
patent: 5291084 (1994-03-01), Shiotsuki et al.
patent: 5410200 (1995-04-01), Sakamoto et al.
T. Kenjo: "Steping Motors and Their Microcprocessor Controls"; 1984; pp. 40-45; Monographs in Electrical and Electronic Engineering 16.
Patent Abstracts of Japan, vol. 017, No. 013 (E-1304), Jan. 11, 1993 and JP 04 244775 A (Aisan Ind. Co. Ltd.), Sep. 1, 1992, *Abstract*.
Fujitani Sakae
Hino Haruyoshi
Nakamata Hiroto
Suzuki Yuzuru
Minebea Co. Ltd.
Mullins Burton S.
Ramirez Nestor
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