ROTOR OF BUILT-IN PERMANENT MAGNET MOTOR AND BUILT-IN PERMANENT MAGNET MOTOR USING SAME
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United States of America Patent
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Issued Date -
Feb 12, 2015
app pub date -
Nov 23, 2012
filing date -
Nov 25, 2011
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Abstract
A rotor (24) of an interior permanent magnet motor and an interior permanent magnet motor (20) are disclosed. The rotor (24) of the interior permanent magnet motor includes a rotor iron core (25); a plurality of permanent magnets (27), where the plurality of permanent magnets (27) are spaced apart inside the rotor iron core (25); and a plurality of air slots (30), disposed at end portions of adjacent permanent magnets (27) and close to an outer circumference of the rotor, and adapted to generate air gap flux density between the outer circumference of the rotor and an inner circumference of a stator of the interior permanent magnet motor, and the air gap flux density being in an analogous sinusoidal shape.
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