Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1990-08-23
1992-11-10
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310 44, 310254, H02K 2304
Patent
active
051626845
ABSTRACT:
A field magnet for miniature motors of a type having a stator comprising a field magnet fixedly fitted to a motor housing, an end plate fitted to an open end of the motor housing; and a rotor comprising a rotor winding wound on a rotor core; electric current being fed to the rotor winding via a commutator making sliding contact with current feeding brushes that are held by brush holders fixedly fitted to the end plate; in which cogging during motor rotation is reduced to make motor rotation smooth by forming a magnet that has at the magnetic poles thereof higher maximum magnetic energy product than any other regions.
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Mabuchi Motor Co. Ltd.
Skudy R.
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