Patent ID: 7952242

Claim:
A rotary electric machine integrated with a control device, comprising: a rotary electric machine which has a stator and a rotor disposed on a rotational shaft, the rotor rotating around the stator; stator current switching circuit sections, each of which has a switching element disposed on a heat sink, and energizes a stator current to the stator; a field current switching circuit section which energizes a field current to a field winding of the rotor; a control circuit section which controls the stator current switching circuit sections and the field current switching circuit section; and a case which contains the stator current switching circuit sections, and has suction holes each for a cooling air inflow to the stator current switching circuit section, the heat sinks of three phases for the stator current switching circuit sections being disposed in a circumferential direction of the rotary electric machine from the control circuit section, wherein, of the three phase heat sinks for the stator current switching circuit sections, a whole surface area of fins of the heat sink of the middle phase is set to be larger than that of the other two phases.