Patent ID: 8564161

Claim:
A motorized equipment comprising: a motor case; a stator fixed inside the motor case; a rotor provided to be rotatable relative to the stator; a shaft that is fixed to the rotor and that is rotatably supported by the motor case; a power module including a plurality of power transistors that are electrically connected with extraction lines extending from a coil wound around the stator or the rotor, the power transistors supplying a drive current to the coil; a control board that controls switching of the power transistors; and a heat sink that is arranged apart from the shift and is provided on one axial side of the shaft, and that absorbs a heat generated by the power transistors, wherein: the heat sink has a columnar member outside a center portion of the heat sink, the columnar member extending in an axial direction of the shaft; and the heat sink has a heat receiving surface on a power module side of the columnar member.