To provide a rotary electric machine capable of improving energy efficiency by preventing a leakage flux of a permanent magnet from increasing.SOLUTION: A rotor (10) comprises a rotor core (11) and a permanent magnet (12) embedded in a magnet hole (121) formed at the rotor core. The permanent magnet (12) is arranged to be inclined in such a manner that an end portion (12a) on a normal-rotation direction side is closer to a stator (14) than an end portion (12b) on a reverse-rotation direction side. The rotor core (11) comprises each of a first flux barrier (211) formed in communication with the magnet hole (121), which is adjacent to the end portion on the normal-rotation direction side of the permanent magnet (12), and a second flux barrier (212) formed in communication with the magnet hole (121), which is adjacent to the end portion on the reverse-rotation direction side of the permanent magnet (12). The second flux barrier (212) radially extends toward the stator (14) from the end portion (12b) on the reverse-rotation direction side of the permanent magnet (12).SELECTED DRAWING: Figure 3
【課題】永久磁石の漏れ磁束の増加を抑制して、エネルギ効率を向上できる回転電機を提供する。【解決手段】回転子(10)は、回転子コア(11)と、回転子コアに形成された磁石孔(121)に埋設される永久磁石(12)と、を備え、永久磁石(12)は、正転方向側の端部(12a)が、逆転方向側の端部(12b)よりも固定子(14)に近接するように傾斜して配置され、回転子コア(11)には、永久磁石(12)の正転方向側の端部に隣接し、磁石孔(121)に連通して形成された第1のフラックスバリア(211)と、永久磁石(12)の逆転方向側の端部に隣接し、磁石孔(121)に連通して形成された第2のフラックスバリア(212)と、がそれぞれ備えられ、第2のフラックスバリア(212)は、永久磁石(12)の逆転方向側の端部(12b)から固定子(14)に向かって径方向に延在する。【選択図】図3
ROTARY ELECTRIC MACHINE, AND HYBRID VEHICLE
回転電機及びハイブリッド車両
2022-05-02
Patent
Electronic Resource
Japanese
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