| 摘要 |
PROBLEM TO BE SOLVED: To radiate the heat of a power semiconductor in a space-saving manner. SOLUTION: An electric power steering device in which an electric motor 5 to generate an auxiliary steering force is controlled by a control circuit including a power semiconductor 15 comprises a shaft member 7 connected to a steering wheel 9 so that the steering wheel 9 is steered by reciprocating motion, a housing 8 in which the shaft member 7 is accommodated, a fluid 18 for heat accumulation which is filled in the housing 8. The power semiconductor 15 is fitted to the housing 8 so that heat generated from the power semiconductor 15 is transmitted to the housing 8. COPYRIGHT: (C)2004,JPO |
