Brushless motor
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United States of America Patent
Stats
-
Nov 12, 1996
Grant Date -
N/A
app pub date -
Apr 12, 1995
filing date -
Apr 14, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brushless motor comprises a stator having a drive coil and a stator core, and a rotor. The stator has a plurality of main teeth and a plurality of auxiliary teeth arranged between the plurality of main teeth. The drive coil comprises a main coil and first and second sub coils. The main coil is wound around the plurality of main teeth in such a way that winding directions on adjacent main teeth become opposite to each other. The first sub coil is wound on every other one of the plurality of auxiliary teeth in such a way as to have a same winding direction. The second sub coil is wound on remaining auxiliary teeth in such a way as to have a same winding direction. The winding directions of the first and second sub coils are the same.
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