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Permanent magnet embedment rotating electric machine, motor for car air conditioner, and enclosed electric compressor
Permanent magnet embedment rotating electric machine, motor for car air conditioner, and enclosed electric compressor
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机译:永磁体埋入式旋转电机,汽车空调电机和封闭式电动压缩机
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摘要
Outer circumference of a rotor is alternately provided with a plurality of circumferential portions and a plurality of convex portions. Straight lines each connecting a rotational axis to one of circumferential centers of circumferential portions are referred to as radial lines. Straight lines each bisecting one of convex portions are referred to as bisectors. A plurality of magnetic flux blocking regions are located on a rotor. One of the magnetic flux blocking region is located in a range between the radial line and the bisector adjacent to and preceding the radial line in the rotation direction. Therefore, a permanent magnet embedment rotating electric machine is capable of preventing decreases in torque and suppressing torque ripple.
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