Abstract: A controller-integrated motor includes a motor main body and a controller integrated with the motor main body to control the motor main body, the motor main body, including a stator core, a shaft which rotates to exert driving force on the motor main body, a frame which holds the stator core and the shaft, and an outer fan provided around the shaft so that the motor main body is recessed inward toward a rotational center of the shaft, the outer fan discharging cooling air stream to cool the motor main body, the controller being provided in proximity to an outer periphery of the frame, the motor main body being formed so that a cooling air stream from the outer fan flows in an axial direction of the shaft along an outer peripheral surface of the frame.

Abstract: The main body of a rotary electrical machine is accommodated in a frame (1). A circulatory device (5) is provided that is rotated by a rotor (3) of said rotary electrical machine, in which there is accommodated cooling liquid (7) that cools at least the main body of the rotary electrical machine. The circulatory device (5) circulates said cooling liquid (7) to outside of the frame (1) by pump action. The cooling liquid (7) is accumulated by a reserve tank before being circulated within the frame (1). After the heated cooling liquid (7) is cooled in the reserve tank, this accumulated cooling liquid (7) is then caused to flow back into the frame (1) by the pressure difference.