公开(公告)号：US20220158519A1

公开(公告)日：2022-05-19

申请号：US17519825

申请日：2021-11-05

Applicant: Nidec Corporation

Inventor： Hitoshi KUROYANAGI ,  Yuki ISHIKAWA

IPC: H02K3/52 ,  H02K11/33

Abstract: A drive device includes a motor, an inverter to control current supplied to the motor, plate-shaped busbars that electrically connect the motor with the inverter, and a housing that accommodates the motor, the inverter, and the busbars. The housing includes a partition wall that partitions the inside of the housing into a motor housing and an inverter housing. The partition wall is provided with a through hole. Each busbar includes a motor connection terminal, an inverter connection terminal, a first portion extending from the motor connection terminal toward the through hole, and a second portion extending from the first portion to the inverter connection terminal through the through hole. At least two busbars overlap each other in a plate thickness direction inside the through hole.

公开(公告)号：US20190334448A1

公开(公告)日：2019-10-31

申请号：US16394425

申请日：2019-04-25

Applicant: Nidec Corporation ,  Nidec Elesys Corporation

Inventor： Yuki ISHIKAWA ,  Naoki IWAGAMI ,  Hitoshi KUROYANAGI

IPC: H02M7/00 ,  H02K11/33 ,  H02M7/5387 ,  H05K5/04 ,  H05K7/20 ,  H01L23/473

Abstract: An inverter control device includes a flow path through which a cooling refrigerant flows is defined in a bottom surface of a casing made of a metal material. The flow path includes a flow inlet and a flow outlet in a first side surface of the casing, and includes an outward path that extends to a second side surface opposite to the first side surface from the first side surface, and a return path that extends to the first side surface from the second side surface.