The invention provides a motor rotor which comprises a rotor core, the rotor core further comprises a plurality of pairs of magnets distributed along the circumferential direction of the rotor core, and each pair of magnets jointly form a V shape with an opening facing the periphery of the rotor core; a first slotted hole and a second slotted hole are formed in the inner side of each V shape, a magnetic bridge is formed between the first slotted hole and the second slotted hole, the two sides of the magnetic bridge are bent in the peripheral direction, and at least one part of the area of the middle of the magnetic bridge arches in the peripheral direction. According to the motor rotor and the motor, under the condition that the overall production cost is not increased and the torque is not reduced, the torque fluctuation can be remarkably reduced by simply changing the local topological structure of the rotor laminations, so that the output stability is improved, and the overall energy consumption of the motor is reduced.
本发明提供了一种电机转子,该电机转子包括转子芯,转子芯进一步包含:沿转子芯周向分布的若干对磁体,每对磁体共同构成开口朝向转子芯的外周的V形形状;每个V形形状内侧的第一槽孔和第二槽孔,第一槽孔和第二槽孔之间形成有磁桥,磁桥的两侧分别向外周方向弯折,并且磁桥的中部的至少一部分区域向外周方向拱起。本发明的电机转子和电机可以在不增加整体生产成本和降低转矩的情况下,通过简单改变转子叠片的局部拓扑结构显著降低转矩波动,从而改善输出稳定性并降低电机的总体能耗。
Motor rotor and vehicle motor comprising same
一种电机转子和包含该转子的车辆电机
28.06.2022
Patent
Elektronische Ressource
Chinesisch