The invention provides an electric machine stator comprising a stator winding and a stator core, the stator core comprising a plurality of annular stator laminations disposed in a stack, each stator lamination comprising a plurality of stator slots on an inner circumference. Each stator slot includes: a winding region in which a stator winding is disposed; the opening area leads to the inner periphery and comprises a first edge and a second edge, the first edge and the second edge are respectively provided with an inner tooth crest and an outer tooth crest, the inner tooth crest and the outer tooth crest of the first edge and the inner tooth crest and the outer tooth crest of the second edge are respectively symmetrical relative to the center line of the opening area, and the first edge and the second edge are asymmetrical relative to the center line. According to the motor stator and the motor provided by the invention, the torque fluctuation can be obviously reduced by simply changing the local topological structure of the stator without increasing the overall production cost and reducing the torque, 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定子,包括定子绕组和定子芯,定子芯包括堆叠安置的多个环形定子叠片,每个定子叠片包括内周上的多个定子齿槽。每个定子齿槽包括:安置定子绕组的绕组区;通向内周的开口区,开口区包括第一边和第二边,其中,第一边和第二边各自具有内外齿顶,第一边的内外齿顶与第二边的内外齿顶分别相对于开口区的中心线对称,且第一边和第二边相对于中心线不对称。根据本发明的电机定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,通过简单改变定子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 stator and vehicle motor comprising same
一种电机定子和包含该定子的车辆电机
2022-06-28
Patent
Elektronische Ressource
Chinesisch
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