Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1995-07-19
1998-05-12
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310 905, 310189, 310198, 310254, 310268, 310 67R, H02K 516, H02K 104, H02K 709, H02K 700
Patent
active
057510857
ABSTRACT:
An axial gap type electric motor includes a stator assembly having a plurality of stator coils fixed to a circuit board and a rotor assembly having a rotor magnet supported via a dynamic pressure gas bearing on the stator assembly. The stator coils are enclosed by a molding material into a single block. An upper face of the block opposed to the rotor magnet is rendered flat. Since the block of the stator coils has no irregularities that cause turbulent flows of air, flows of air flowing through a gap between the rotor magnet and the stator coils are rendered laminar. Consequently, windage loss can be reduced.
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Kabushiki Kaisha Toshiba
Stephan Steven L.
Wallace, Jr. Michael J.
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