Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1995-03-09
1998-07-21
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310 58, 310 89, 310 90, 310254, 310261, H02K 500, H02K 104, H02K 516, H02K 900
Patent
active
057838887
ABSTRACT:
A cylindrical bearing box 2 is integrally provided at the axial center of an annular disk 1 on which a flange 1a is formed. A shaft 3 is attached to a pair of bearings 2a, 2b engaged with the bearing box 2. A rotary disk 4 attached the shaft 3 on a side opposite to the drive side is molded integrally with a conductor 5a of a rotor 5 arranged outside of the bearing box 2 in the radial direction. A stator 6 arranged outside of the rotor 5 through a magnetic clearance is attached to the stationary side of the rotary electric machine. A synthetic resin member 7, the electric insulating property and heat conductivity of which are high, is molded in the overall periphery of the stator 6 including the winding 6a and the iron core 6b. An end face of the synthetic resin member 7 on the drive side is closely contacted with the annular disk and attached by a screw 1b. Blades 4a are provided on an outer end face of the rotary disk 4 and enclosed by a fan cover 4b. A shaft seal device 8 is provided in a gap formed between a small diameter end face portion 7a of the synthetic resin member 7 on a side opposite to the drive side and the rotary disk 4.
REFERENCES:
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patent: 4015154 (1977-03-01), Tanaka et al.
patent: 4129796 (1978-12-01), Papst
patent: 4384226 (1983-05-01), Sato et al.
patent: 4496866 (1985-01-01), Yamamoto et al.
patent: 4585966 (1986-04-01), Nishida et al.
patent: 4795931 (1989-01-01), Sturm
patent: 5075585 (1991-12-01), Teruyama et al.
Die Erwarmung bei electrischen Maschinen, insbesondere bei Drehstrom-Asynchron-Motoren, Siemens-Schuckertwerke AG, Technische Berichte MIV Nr. 2, Feb. 1951, pp. 11-17.
Fuji Electric & Co., Ltd.
Stephan Steven L.
Wallace, Jr. Michael J.
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