Patent ID: 6445100
Filing Date: 2002-09-03
Classification: B60L,H02K,Y02T

Abstract:
A permanent magnet dynamo electric machine comprising:a stator having a stator core with a stator winding wound therein; a rotor facing the inner circumference of said stator with a gap therebetween, said rotor being rotatably supported with respect to said stator and including a rotor core; a plurality of permanent magnets buried within said rotor core, adjacent the circumference of said rotor core, each permanent magnet having an air gap adjacent one side thereof, each of said permanent magnets being positioned at a position at which a ratio R1/R0 is equal to or more than 0.85, wherein R0 is the radius of said rotor and R1 is the radius of an imaginary circle drawn by inscribing the faces of the plurality of said permanent magnets at the side thereof remote from said stator.