ROTARY ELECTRIC MACHINE
To provide a rotary electric machine which can reduce loss of torque of a rotor core which is generated by infiltration of oil as a coolant in a recess of the rotor.SOLUTION: A rotary electric machine 100 comprises: a stator 102; and a rotor 103. At least one of the stator 102 and the rotor 103 is c...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a rotary electric machine which can reduce loss of torque of a rotor core which is generated by infiltration of oil as a coolant in a recess of the rotor.SOLUTION: A rotary electric machine 100 comprises: a stator 102; and a rotor 103. At least one of the stator 102 and the rotor 103 is configured to be cooled by oil. The rotor 103 comprises: a shaft 1; a rotor core 2 having a notch-like recess 23 formed to be recessed radially inward from an outer peripheral surface 2a when viewed from an axial direction of the shaft 1 and fixed to the shaft 1 in an integrally rotatable manner; and an oil proof embedded member 3 arranged in the recess 23 and formed of a material different from that of the rotor core 2.SELECTED DRAWING: Figure 1
【課題】冷媒である油がロータコアの凹部に浸入して発生するロータコアのトルクの損失を低減させることが可能な回転電機を提供する。【解決手段】この回転電機１００は、ステータ１０２と、ロータ１０３と、を備え、ステータ１０２およびロータ１０３の少なくとも一方は、油により冷却されるように構成され、ロータ１０３は、シャフト１と、シャフト１の軸方向から視て、外周面２ａから径方向内側に向けて窪むように形成された切り欠き状の凹部２３を有し、シャフト１と一体回転可能に固定されるロータコア２と、凹部２３内に配置され、ロータコア２とは異なる材料により形成された耐油性を有する埋込部材３と、を含む。【選択図】図１ |
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