Stator suitable for closed slot induction motor

• Main Authors: CAI QINLEI, BAO XIAOHUA, LIU JIE, WANG LUYAO, YAN JINGWEN, LI JIAXIN, DI CHONG
• Format: Patent
• Language: Chinese; English
• Published: 06.05.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention discloses a stator suitable for a closed slot induction motor, and relates to the technical field of motors, the stator comprises a stator iron core, the stator iron core is provided with a stator slot, the stator iron core is provided with a through hole along the axis direction, the inner wall of the through hole is provided with a plurality of arc surfaces protruding towards the axis direction of the stator iron core, and the arc surfaces are arranged in the stator slot. The plurality of cambered surfaces are distributed along the circumferential direction of the stator iron core; by changing the structure of the through hole of the stator core, the air gap magnetic conductance harmonic amplitude of the motor is reduced; meanwhile, the air gap flux density sine degree of the motor is optimized, and the first-order tooth harmonic amplitude of the stator is reduced; the stray loss caused by stator tooth harmonic waves is reduced; the overall efficiency of the motor is improved. The structure is