Face opposing type motor

Details Face opposing type motor Face opposing type motor

1993-04-30

1995-09-26

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 67R, 310 905, F16C 3206, G02B 2608

Patent

active

054536502

ABSTRACT:
A face opposing type motor has a rotor yoke fixed to a hollow rotating shaft disposed in a non-contact bearing device; the non-contact bearing device having a fixed shaft inserted into the hollow rotating shaft; a rotor magnet held by the rotor yoke; and a driving coil substrate having a face opposed to the rotor magnet. The rotor yoke has a rotor magnet fitting portion fitted to an outer circumferential face of the rotor magnet so as to hold the rotor magnet by this rotor magnet fitting portion. In accordance with such a structure, it is possible to provide a reliable face opposing type motor having an excellent quality and cheaply manufactured by improving a system for holding a rotor magnet.

REFERENCES:
patent: 4658312 (1987-04-01), Elsasser et al.
patent: 4726640 (1988-02-01), Iwama et al.
patent: 4893044 (1990-01-01), Bush et al.
patent: 5103335 (1992-04-01), Sugiura
patent: 5114245 (1992-05-01), Tanaka et al.
patent: 5224782 (1993-07-01), Miwa et al.

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