Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1988-06-10
1989-11-14
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 40MM, 310111, 310154, 310276, 310269, H02K 122
Patent
active
048810029
ABSTRACT:
A miniature motor comprising a stator having permanent magnets constituting a two-pole field, and a rotor having rotor windings wound on a rotor core of a three-pole construction, in which the rotor core is formed in such a manner that the cross-sectional shape of the rotor core normal to the motor shaft is made symmetrical with respect to the radial center line of each pole thereof and that the gap between the permanent magnets and a predetermined range from the center line of the arc-shaped outer periphery of the rotor core facing the permanent magnet is made larger than the gap between the permanent magnet and at least part of the other range of the outer periphery of the rotor core.
REFERENCES:
patent: 3064150 (1962-11-01), Barnes
patent: 4280072 (1981-07-01), Goton
Mabuchi Motor Co. Ltd.
Skudy R.
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