Patent ID: 7764502

Claim:
A control device for an electric motor comprising a housing for holding at least one heat-generating component that is arranged in an electrical circuit arrangement that is used for control of the electric motor by controlling an electrical load current flowing through said heat-generating component to the electric motor, and means for thermal conduction connected on one end thereof to the housing and on another end thereof to a cooled area associated with said control device, wherein said means for thermal conduction comprises a heat pipe having a vaporization region at said one end thereof and a condensation region at said another end thereof, said heat pipe containing a fluid that transports heat, with a phase change, between said vaporization region and said condensation region, wherein said one end of said heat pipe is thermally linked to said heat-generating component by a housing attachment connected to said housing in an area of said heat-generating component, and wherein said housing attachment surrounds said vaporization region, and said vaporization region is in thermal contact with said heat-generating component.