公开(公告)号：US20240333100A1

公开(公告)日：2024-10-03

申请号：US18622611

申请日：2024-03-29

Applicant: NIDEC CORPORATION

Inventor： Ryosuke MATSUZAKI ,  Taishi SATODA ,  Sota DOI ,  Jinnosuke IKUSHIMA ,  Daichi SUKEMORI

IPC: H02K9/19 ,  B60K1/00 ,  H02K5/16 ,  H02K7/08 ,  H02K7/116

CPC classification number: H02K9/19 ,  H02K5/161 ,  H02K7/083 ,  H02K7/116 ,  B60K1/00

Abstract: A drive device includes a motor, a transmission, a housing, and a flow path. The transmission includes first to third shafts, and first to third bearings supporting the first to third shafts, respectively. The housing includes a side wall covering a gear chamber from one side in an axial direction, and having first to third bearing holding portions for holding the first to third bearings, respectively. The flow path includes a supply flow path portion that supplies a fluid to the inside of the second bearing holding portion, a first flow path portion that connects the inside of the second bearing holding portion and the inside of the first bearing holding portion, and a second flow path portion that connects the inside of the second bearing holding portion and the inside of the third bearing holding portion.