PERMANENT MAGNET SYNCHRONOUS MOTOR AND A ROTOR THEREOF
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United States of America Patent
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Issued Date -
Feb 16, 2017
app pub date -
Dec 31, 2014
filing date -
Apr 25, 2014
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Abstract
A permanent magnet synchronous motor, a rotor thereof comprising an iron core in cylindrical form, with p S pole magnet plates and p N pole magnet plates arranged inside of the iron core around an axis thereof, wherein p is a positive integer, and the p S pole magnet plates and the p N pole magnet plates are alternatively aligned; on a surface of a rotor iron core of each magnet steel plate are arranged two d axial surface grooves; the two d axial surface grooves corresponding to each magnet steel plate are situated on two sides of a center line of the magnet steel plate; an inter-axial distance of the two d axial surface grooves of each magnet steel plates is approximately equal to a tooth tip span of a rotor tooth of the permanent magnet synchronous motor. Also disclosed is a rotor of a permanent magnet synchronous motor.
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