发明名称 |
ROTATING ELECTRIC MACHINE |
摘要 |
A rotating electric machine includes: a rotation shaft; a bearing retaining the rotation shaft; an electromagnetic brake that is provided on an outer peripheral side of the rotation shaft and is located between the bearing and a rotor, the electromagnetic brake locking the rotation shaft during non-excitation and releasing the locking during excitation; a magnetic-flux shielding unit provided on an outer peripheral side of the electromagnetic brake; and a slidable contact unit that is provided so as to be in contact with the magnetic-flux shielding unit and the rotation shaft and comes into contact with the magnetic-flux shielding unit and the rotation shaft at least at two locations on the bearing side and the rotor side, wherein a magnetic field generated from the electromagnetic brake forms a closed circuit through the rotation shaft, the magnetic-flux shielding unit, and the slidable contact unit. |
申请公布号 |
US2017005542(A1) |
申请公布日期 |
2017.01.05 |
申请号 |
US201514904563 |
申请日期 |
2015.03.03 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
HISAMATSU YOSHIYUKI |
分类号 |
H02K7/106;H02K7/08 |
主分类号 |
H02K7/106 |
代理机构 |
|
代理人 |
|
主权项 |
1. A rotating electric machine comprising:
a rotation shaft; a bearing that retains the rotation shaft; an electromagnetic brake that is provided on an outer peripheral side of the rotation shaft and is located between the bearing and a rotor, the electromagnetic brake locking the rotation shaft during non-excitation and releasing the locking during excitation; a magnetic-flux shielding unit provided on an outer peripheral side of the electromagnetic brake; and a slidable contact unit that is provided such that the slidable contact unit is in contact with the magnetic-flux shielding unit and the rotation shaft and comes into contact with the magnetic-flux shielding unit and the rotation shaft at least at two locations on the bearing side and the rotor side, wherein a magnetic field generated from the electromagnetic brake forms a closed circuit through the rotation shaft, the magnetic-flux shielding unit, and the slidable contact unit. |
地址 |
Tokyo JP |