公开(公告)号：US12126220B2

公开(公告)日：2024-10-22

申请号：US17642906

申请日：2020-10-06

申请人： NIPPON STEEL CORPORATION

发明人： Shin Suenaga ,  Yoshihiro Arita ,  Yoshifumi Ohata ,  Takashi Aramaki ,  Shuji Yamamoto

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

CPC分类号： H02K1/276 ,  H02K1/02 ,  H02K15/03 ,  H02K15/12 ,  H02K2213/03 ,  Y10T29/49009

摘要： 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.