To provide a new electrically-driven driver and electrically-driven power steering device, capable of efficiently radiating heat of a power supply circuit unit and power conversion circuit unit to the outside while shortening the length in the axial direction as much as possible.SOLUTION: A power supply circuit side heat radiation part 15B and power conversion circuit side heat radiation part 15A that transmit, to a motor housing 11, heat generated at least a power supply circuit part 17 and power conversion circuit part 16 are formed on a housing end surface part 15 of the motor housing on one side of a revolving shaft 23 of an electrically-driven motor, the one side being opposite to the side of an output part. In addition, base plates constituting the power supply circuit part 17 and control circuit part 18 are disposed in the radial direction of the revolving shaft 23 of the electrically-driven motor and stacked, and a metal cover 12 is fixed on the housing end surface part 15 so as to cover the control circuit part 18, power supply circuit part 17, and power conversion circuit part 16.SELECTED DRAWING: Figure 6
【課題】軸方向の長さをできるだけ短くすると共に、電源回路部や電力変換回路部の熱を効率よく外部に放熱することができる新規な電動駆動装置及び電動パワーステアリング装置を提供することにある。【解決手段】電動モータの回転軸23の出力部とは反対側のモータハウジングのハウジング端面部15に、少なくとも電源回路部17及び電力変換回路部16で発生した熱をモータハウジング11に伝熱させる電源回路側放熱部15Bと電力変換回路側放熱部15Aを形成し、更に電源回路部17及び制御回路部18を構成する基板を電動モータの回転軸23の径方向に配置して積層すると共に、制御回路部18、電源回路部17及び電力変換回路部16を覆うように金属カバー12をハウジング端面部15に固定する。【選択図】図6
ELECTRICALLY-DRIVEN DRIVER AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE
電動駆動装置及び電動パワーステアリング装置
2019-03-22
Patent
Electronic Resource
Japanese
ELECTRICALLY-DRIVEN DRIVING DEVICE AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE
European Patent Office | 2020
|ELECTRICALLY-DRIVEN DRIVE DEVICE AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE
European Patent Office | 2019
|ELECTRICALLY-DRIVEN DRIVE DEVICE AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE
European Patent Office | 2019
|ELECTRICALLY-DRIVEN DRIVING DEVICE AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE
European Patent Office | 2019
|European Patent Office | 2017
|