ROTATING ELECTRICAL MACHINE

摘要

A stator is fixed to a frame of an electric motor. A rotor is rotatably mounted to the frame to face the stator in a radial direction. A heat sink, to which a control substrate is attached, is mounted in one end of the frame. A heat transfer plate is interposed between heat-generating elements formed on the control substrate and the heat sink to absorb variations in a distance therebetween, the heat transfer plate allow heat to be transmitted from the heat-generating elements to the heat sink. The heat transfer plate includes a frame body mounted to the heat sink and a plurality of contact strips that flexibly protrude from the frame body and that abut the heat-generating elements.

主权项

1. A rotating electrical machine, comprising:
a housing having at least one end in an axis of rotation direction that is open, the housing being cylindrical; a stator fixed to an inner circumferential surface of the housing; a rotor rotatably mounted in the housing to face the stator in a radial direction; a heat sink disposed in an opening of the housing; a control substrate connected to the heat sink, the control substrate including a heat-generating circuit element that controls a supply of electric power to the stator; and a heat transfer member interposed between the circuit element and the heat sink to absorb variations in a distance between the circuit element and the heat sink, the heat transfer member being configured to allow heat transfer from the circuit element to the heat sink.