| 摘要 |
Electric drive device for an electric power steering system, comprising an electric motor (1) with a motor case (2), and a motor shaft (6) with a drive end (7), an electronic control unit (10) arranged coaxially with the motor shaft (6) controlling the drive of the motor (1), comprising a power board (20), and a control board (70), and a heat sink (40; 40') absorbing and dissipating the heat generated by the power board (20), the motor (1), the heat sink (40; 40'), the power board (20), and the control board (70) being arranged in the mentioned order with respect to the drive end (7), wherein the power board (20) covers the cross section of the motor case (2). |
