公开(公告)号：US10784753B2

公开(公告)日：2020-09-22

申请号：US16617731

申请日：2018-06-01

Applicant: NSK LTD.

Inventor： Shigeru Shimakawa ,  Yuri Shimizu ,  Takashi Sunaga ,  Masakazu Morimoto ,  Ryoichi Suzuki

IPC: H02K11/33 ,  H02K5/10 ,  H02K5/22 ,  H02K9/22 ,  H02K11/00 ,  B62D5/04 ,  H02K11/215

Abstract: An electric drive device and an electric power steering device that reduce temperature increase of a magnetic sensor are provided. The electric drive device includes: an electric motor; an electronic control device including a magnet at an anti-load side end of a shaft to control drive of the electric motor, and a circuit board on the anti-load side of the shaft on an extended line in an axial direction of the shaft; first coil wiring connecting the first coil groups of the electric motor to the circuit board; and second coil wiring connecting the second coil groups of the electric motor to the circuit board. Each of the first and second coil wiring includes a first portion projecting in a direction intersecting the axial direction of the shaft to the outside of the housing, and a second portion projecting outside the housing from the first portion toward the circuit board.

公开(公告)号：USD916633S1

公开(公告)日：2021-04-20

申请号：US29667835

申请日：2018-10-25

Applicant: NSK LTD.

Designer： Noboru Kaneko ,  Yuri Shimizu