公开(公告)号：US20220368182A1

公开(公告)日：2022-11-17

申请号：US17642906

申请日：2020-10-06

Applicant: NIPPON STEEL CORPORATION

Inventor： Shin SUENAGA ,  Yoshihiro ARITA ,  Yoshifumi OHATA ,  Takashi ARAMAKI ,  Shuji YAMAMOTO

IPC: H02K1/276 ,  H02K1/02 ,  H02K15/12 ,  H02K15/03

Abstract: A rotor is a magnet-embedded rotor incorporated in a traveling motor of a vehicle, and includes: a laminated core having steel sheets laminated to each other and a bonding layer for bonding the steel sheets adjacent to each other in a laminating direction; and a magnet embedded in the laminated core. When the rotor rotates at 11000 rpm, a maximum amount of displacement of an outer edge of the laminated core of the rotor in a radial direction is 0.1 mm or less.