STATOR STRUCTURE OF PERMANENT MAGNET MOTOR

WIPO Patent Application WO/2021/114453

A1

The present invention relates to the technical field of permanent magnet motors, and discloses a stator structure of a permanent magnet motor, comprising an inner stator and an outer stator; the inner stator comprises an inner stator iron core and an inner stator winding, and the outer stator comprises an outer stator iron core and an outer stator winding; the inner stator iron core is mounted on an auxiliary shaft of the motor rotor, and the outer stator iron core is mounted on an inner wall of an outer shell of the motor, the number of winding slots on the inner stator core and the outer stator core being the same, the winding method of the inner stator winding and the outer stator winding being the same, and the winding phase difference of the inner stator winding and the outer stator winding being 180 degrees. The stator structure of the present solution uses a fractional slot, single and double-layer hybrid concentrated winding; the beneficial effects of said winding are reducing the cogging torque of the motor, increasing the output torque of the motor, reducing the amount of copper wire used, reducing the resistance of the winding, reducing the copper loss of the motor, and reducing the temperature rise of the motor.

HONG ZHEN (CN)
LI CHAO YANG (CN)

PCT/CN2020/071225

June 17, 2021

January 09, 2020

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SHENZHEN ZHONGYUE ELECTROMECHANICAL CO LTD (CN)

H02K16/04; H02K1/16; H02K3/28

CN108390529A	2018-08-10
CN107492998A	2017-12-19
CN105914978A	2016-08-31
CN104022609A	2014-09-03
US20080169720A1	2008-07-17

CHONGQING BAIRUNHONG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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