AXIAL GAP TYPE ELECTRIC ROTATING MACHINE, ELECTRIC WHEELCHAIR AND ELECTRIC BICYCLE
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United States of America Patent
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Issued Date -
Mar 20, 2014
app pub date -
Sep 10, 2013
filing date -
Sep 14, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An axial gap type electric rotating machine is disclosed. The rotating machine includes a rotor arranged to rotate about an axis of rotation, and a stator arranged so as to face the rotor with a predetermined gap in an axial direction of the axis of rotation. The rotor includes a back yoke and an annular rare earth bonded magnet made of a circumferentially continuous member fixed to the back yoke. The magnet is magnetized so that an N-pole and an S-pole of magnetic poles are arranged alternately in a circumferential direction, and includes cutout portions formed between adjacent magnetic poles. The stator includes a plurality of tooth portions arranged along a circumferential direction so as to face the magnet and a winding wound on the tooth portions.
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