Electric motor with permanent magnet having curved outer wall and flat rear wall
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United States of America Patent
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-
Feb 14, 2017
Grant Date -
Mar 5, 2015
app pub date -
Sep 2, 2014
filing date -
Sep 3, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electric motor includes: a ring-shaped stator including a field coil; and a rotor holding a permanent magnet in a magnet holding portion on an outer circumference thereof in an exposed state and being supported to be rotatable about a rotary shaft core in an inner space of the stator, wherein the magnet holding portion is configured to have a magnet insertion portion and a pair of regulation bodies, and the permanent magnet is configured to include a cylindrical outer wall surface, a rear wall surface, a pair of side wall surfaces, and a pair of engaged surfaces.
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