ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE

• Main Authors: SUNAGA TAKASHI, SHIMAKAWA SHIGERU, SHIMIZU YURI, MORIMOTO KYOICHI, SUZUKI RYOICHI
• Format: Patent
• Language: English; Japanese
• Published: 28.05.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

To provide an electric drive device and an electric power steering device, in which a temperature rise of a magnetic sensor is suppressed.SOLUTION: The electric drive device includes: an electric motor; an electronic control unit including a magnet provided at an end portion on an anti-load side of a shaft for driving and controlling the electric motor and a circuit board arranged on an extension line in an axial direction of the shaft on the anti-load side of the shaft; a first coil wire connecting a first coil group of the electric motor and the circuit board; and a second coil wiring for connecting a second coil group of the electric motor and the circuit board. The first coil wiring and the second coil wiring have a first portion protruding to an outside of a housing and a second portion projecting from the first portion toward the circuit board on the outside of the housing, respectively, in a direction intersecting with an axial direction of the shaft.SELECTED DRAWING: Figure 10 【課題】磁気センサの温度上昇が抑制される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。【解決手段】電動駆動装置は、電動モータと、電動モータを駆動制御するためにシャフトの反負荷側の端部に設けられた磁石と、シャフトの反負荷側であって、シャフトの軸方向の延長線上に配置された回路基板と、を含む電子制御装置と、電動モータの第１コイルグループと回路基板とを接続する第１コイル配線と、電動モータの第２コイルグループと回路基板とを接続する第２コイル配線と、を備える。第１コイル配線及び第２コイル配線は、シャフトの軸方向と交差する方向において、ハウジングの外側まで突出した第１部位と、ハウジングの外側において第１部位から回路基板に向けて突出した第２部位と、をそれぞれ有する。【選択図】図１０