The invention provides a rotor assembly, a motor, an electric power steering system and a vehicle, the rotor assembly comprises a rotor iron core, the rotor iron core comprises a plurality of iron core sections along the axial direction of the rotor iron core, the plurality of iron core sections are coaxially arranged, and a deflection angle is formed between the mth iron core section and the (m + 1) th iron core section by taking the axis of the rotor iron core as a rotation center. The iron core section comprises a first punching sheet group and permanent magnets, a plurality of magnet grooves are formed in the first punching sheet group in the circumferential direction of the first punching sheet group, and the permanent magnets are arranged in the magnet grooves. In the two adjacent iron core sections, at least one iron core section further comprises a second punching sheet, the second punching sheet is connected with the first punching sheet sets and located between the first punching sheet sets of the two adjacent iron core sections, and the radial size of the second punching sheet is smaller than that of the first punching sheet sets in the radial direction of the iron core sections. A partition area is defined between the outer edge of the second punching sheet and the outer edge of the first punching sheet group.
本发明提供了一种转子组件、电机、电动助力转向系统和车辆,其中,转子组件包括:转子铁芯,沿转子铁芯的轴向,转子铁芯包括多段铁芯段,多段铁芯段同轴设置,以转子铁芯的轴线为旋转中心,第m段铁芯段和第m+1段铁芯段之间具有偏转角。铁芯段包括:第一冲片组和永磁体,沿第一冲片组的周向,第一冲片上组设有多个磁体槽,永磁体设于磁体槽内。在相邻两段铁芯段中,至少一段铁芯段还包括第二冲片,第二冲片与第一冲片组相连接,第二冲片位于相邻两段铁芯段的第一冲片组之间,沿铁芯段的径向,第二冲片的径向尺寸小于第一冲片组的径向尺寸,第二冲片的外缘与第一冲片组的外缘之间限定出隔断区域。
Rotor assembly, motor, electric power steering system and vehicle
转子组件、电机、电动助力转向系统和车辆
2024-11-22
Patent
Electronic Resource
Chinese
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