Outer-rotor type electric rotary machine and electric motor vehicle using the machine
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United States of America Patent
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Dec 16, 1997
Grant Date -
N/A
app pub date -
Jun 13, 1996
filing date -
Jun 15, 1995
priority date (Note) -
Expired
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Importance
Abstract
An outer-rotor type electric rotary machine comprises a shaft fixed to a stationary unit, a motor stator, a motor rotor, a cylindrical rotor frame, and first and second brackets attached to rotary members, respectively. At least one of the first and second brackets includes a plurality of heat-radiating fins mounted on its outer peripheral surface, and a plurality of heat-absorbing fins mounted on its inner peripheral surface.
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