Permanent magnet motor rotor structure

• Main Authors: MEI YAN, XIE ZUOSHUANG, ZHAN GUOHUA, LU KEYIN
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2020
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model provides a rotor structure of a permanent magnet motor. Including a rotor assembly, the rotor assembly comprises a plurality of rotor assembly units. Rotor silicon steel (180) in therotor assembly unit is provided with a plurality of magnetic steels and a plurality of holes; the defect of large torque pulsation of a common rare earth permanent magnet synchronous motor is effectively solved; meanwhile, the magnetic resistance of the motor is increased by adding the air gap holes (110) in the shape of the magnetic bridge, the torque of the rare earth motor is effectively improved, the mechanical strength of the rotor iron core is enhanced, the motor can rotate in a full-speed and low-pulsation range, and the controllability of the motor is improved. Through the design of the outer surface shape of the rotor and the shape of the magnetic steel groove, the counter electromotive force harmonic of the motor is effectively improved, and the cogging torque of the motor is reduced. 本实用新型提供了一种永磁电机转子结构