Rotor assembly

Details Rotor assembly Rotor assembly

1993-03-18

1996-01-23

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310261, 310271, 156293, 464179, H02K 2112

Patent

active

054867304

ABSTRACT:
Past methods and apparatus for manufacturing a rotor assembly have been used to provide rotor assemblies for rotating electric machines. Many of these electric machines rotate at low speeds. The present method and apparatus for manufacturing a rotor assembly can be used to make a rotor assembly to be used at high speeds. The rotor assembly includes a shaft having a frustoconical mounting surface defined thereon and having a plurality of magnets attached to the frustoconical mounting surface. A cover having a frustoconical inner surface surrounds the magnets and compressively secures the magnets to the shaft. The compressive forces applied by the cover and the adhesive used to secure the magnets insuring that a positive contact pressure exists between the magnets and the shaft during operation of the electric machine.

REFERENCES:
patent: 2677259 (1954-05-01), Donant
patent: 3396291 (1969-08-01), Somerville
patent: 4045696 (1877-08-01), Lutz
patent: 4543506 (1985-09-01), Kawada
patent: 4674178 (1987-06-01), Patel
patent: 4713569 (1957-12-01), Schwartz
patent: 4748359 (1988-05-01), Yahara
patent: 4918802 (1990-04-01), Schaefer
patent: 4920295 (1990-04-01), Holden
Patent Abstracts of Japan-vol. 5, No. 125 (E-69) (797) 12 Aug. 1981.

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