Patent ID: 8342287

Claim:
A vehicle steering apparatus comprising: a control device that includes a heat generation element and controls the driving of an electric motor; a control housing that partitions an accommodation chamber that accommodates the control device; an adjacent housing that is opposite to the electric motor with the control housing sandwiched therebetween and is adjacent to the control housing; and a heat-conducting member, wherein the heat-conducting member includes a proximity section in close proximity to the heat generation element of the control device so that heat can be conducted, and a connected section that is connected to the adjacent housing so that heat can be conducted, the control housing includes first and second interior wall surfaces that are opposite to each other in an axial direction of a rotatable shaft of the electric motor, the first and second interior wall surfaces partially partition the accommodation chamber, the first interior wall surface is arranged relatively closer to the electric motor, and the second interior wall surface is arranged relatively farther from the electric motor, the heat generation element of the control device is mounted on a power substrate attached to the second interior wall surface so that heat can be conducted, and the proximity section of the heat-conducting member is connected to a heat sink connected to the second interior wall surface so that heat can be conducted.