Outer-rotor permanent magnet brushless motor
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United States of America Patent
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May 8, 2018
Issued Date -
N/A
app pub date -
May 27, 2015
filing date -
Dec 5, 2014
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Abstract
An outer-rotor permanent magnet brushless motor is disclosed, which comprises an outer-rotor and an inner-stator. The outer-rotor configured with P poles, P is a natural number and denotes a multiple of 4. The inner-stator has a stator axle, and S teeth which configured on outer surface of stator, S=P−1, S is a natural number. A circle is formed about a center of the stator axle from the center of the outer end surface. A correction angle a1 and an original angle a are defined from the center of the outer end surface. T The ratio of a1/a is defined by the following formula: 0.2<(a1/a)<0.6.
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