INTERIOR PERMANENT MAGNET ROTARY ELECTRIC MACHINE

A field element has permanent magnets embedded in a core and extending in the axial direction parallel to a rotation axis. Both a magnetic pole face of the permanent magnet close to an armature and a magnetic pole face away from the armature show arcs concaved toward an armature side. A radius of an...

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Bibliographic Details
Main Authors ASANO YOSHINARI, ARAKI SHINTAROU, KIFUJI NOBUYUKI
Format Patent
LanguageEnglish
Published 18.06.2015
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:A field element has permanent magnets embedded in a core and extending in the axial direction parallel to a rotation axis. Both a magnetic pole face of the permanent magnet close to an armature and a magnetic pole face away from the armature show arcs concaved toward an armature side. A radius of an arc shown by the magnetic pole face away from the armature is larger than a radius of an arc shown by the magnetic pole face close to the armature. Further, a focal point of the arc shown by the magnetic pole face away from the armature is further away from the permanent magnet than a focal point of the arc shown by the magnetic pole face close to the armature. Also, the focal points and the rotation axis are arranged on one straight line as viewed from the axial direction.
Bibliography:Application Number: US201314406970