Patent ID: 8344566

Claim:
A drive device, comprising: a rotating electrical machine; a control device that controls the rotating electrical machine; and a case that accommodates the rotating electrical machine and the control device, wherein: the case includes a machine chamber that accommodates the rotating electrical machine, and an electric chamber that accommodates the control device, the machine chamber and the electric chamber are separated from each other by a partition wall, and a connection member that electrically connects the rotating electrical machine and the control device to each other is provided so as to extend through the partition wall in a fluid-tight state, the machine chamber has a machine chamber opening that is structured to allow the rotating electrical machine to pass through the machine chamber opening and the electric chamber has an electric chamber opening that is structured to allow the control device to pass through the electric chamber opening, the openings are both open in an axial direction on one axial end side of the rotating electrical machine, a cover that covers the openings in a separated state from each other is mounted to the openings, the machine chamber and the electric chamber are separated from each other in a radial direction of the rotating electrical machine.