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    • 6. 发明申请
    • Drive unit
    • 驱动单元
    • US20090243443A1
    • 2009-10-01
    • US12314058
    • 2008-12-03
    • Kazuo AokiJunji TsuruokaTomoo AtarashiTakafumi KoshidaManabu MiyazawaTatsuyuki Uechi
    • Kazuo AokiJunji TsuruokaTomoo AtarashiTakafumi KoshidaManabu MiyazawaTatsuyuki Uechi
    • H02K11/00
    • H02K11/048B60K6/445H02K9/19Y02T10/6239
    • A drive unit includes a rotary electric machine; an inverter used to control the rotary electric machine and a capacitor that smooths a power supply voltage of the inverter; and a case housing the rotary electric machine. A control equipment housing space structured by an inverter housing space portion that houses the inverter and a capacitor housing space portion that houses the capacitor is formed in the case on an outer side of the rotary electric machine in an axial center radial direction of the rotary electric machine. A refrigerant flow chamber through which a refrigerant flows is formed between the control equipment housing space and the rotary electric machine. A capacitor heat exchange fin that performs heat exchange between the capacitor housing space portion and the refrigerant is provided between the capacitor housing space portion and the refrigerant flow chamber.
    • 驱动单元包括旋转电机; 用于控制旋转电机的逆变器和使逆变器的电源电压平滑的电容器; 以及容纳旋转电机的壳体。 在旋转电机的外侧沿旋转电机的轴向中心径向形成有由容纳逆变器的逆变器容纳空间部分和容纳电容器的电容器容纳空间部分构成的控制装置容纳空间 机。 在控制设备容纳空间和旋转电机之间形成制冷剂流过的制冷剂流动室。 在电容器容纳空间部分和制冷剂流动室之间设置电容器容纳空间部分和制冷剂之间进行热交换的电容器换热片。