| 发明名称 |
MOTOR |
| 摘要 |
A motor includes a rotating portion, a stationary portion, and a bearing arranged to support the rotating portion such that the rotating portion is rotatable with respect to the stationary portion. The rotating portion includes a shaft arranged to extend along a central axis, a magnet, a rotor hub arranged to extend in an annular shape around the shaft, and a flywheel fixed to the rotor hub. At least a portion of an outward surface of the rotor hub is a metal surface. The metal surface is arranged radially inward of an outer circumferential surface of the flywheel. A reflectance of the outer circumferential surface of the flywheel is lower than a reflectance of the metal surface. |
| 申请公布号 |
US2016372988(A1) |
申请公布日期 |
2016.12.22 |
| 申请号 |
US201615171179 |
申请日期 |
2016.06.02 |
| 申请人 |
Nidec Corporation |
发明人 |
SEKII Yoichi |
| 分类号 |
H02K7/02;G02B26/08;G02B26/00;H02K7/08;H04N9/31 |
主分类号 |
H02K7/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A motor comprising:
a rotating portion arranged to rotate about a central axis directed in a vertical direction; a stationary portion; and a bearing arranged to support the rotating portion such that the rotating portion is rotatable with respect to the stationary portion, wherein the rotating portion includes:
a shaft arranged to extend along the central axis;a magnet;a rotor hub arranged to extend in an annular shape around the shaft; anda flywheel fixed to the rotor hub, at least a portion of an outward surface of the rotor hub is a metal surface, the metal surface is arranged radially inward of an outer circumferential surface of the flywheel, and a reflectance of the outer circumferential surface of the flywheel is lower than a reflectance of the metal surface. |
| 地址 |
Kyoto JP |
