Through analyzing the armature magnetic dense, output torque and efficiency, the tooth width and yoke high of motor stator armature were optimized, and determined the width and thickness of permanent magnet structure parameters by the same design optimization method. 通过分析电枢磁密、输出扭矩及效率,对电机定子电枢的齿宽、轭高和永磁体的宽度及厚度等结构参数进行了优化。