| 发明名称 |
SPINDLE MOTOR |
| 摘要 |
There is provided a spindle motor, including: a sleeve fixed to a base member; a shaft rotatably inserted into the sleeve; and a rotor hub fixed to a top end portion of the shaft to be rotated together therewith and provided with an extension wall to form a liquid-vapor interface together with an outer circumferential surface of the sleeve, wherein the extension wall is provided with a protrusion portion protruded in an inner radial direction so as to reduce leakage of a lubricating fluid. |
| 申请公布号 |
US2014152133(A1) |
申请公布日期 |
2014.06.05 |
| 申请号 |
US201313757091 |
申请日期 |
2013.02.01 |
| 申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
SHIM Young Sam;Yang Hyun Gi |
| 分类号 |
H02K5/167 |
主分类号 |
H02K5/167 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A spindle motor, comprising:
a sleeve fixed to a base member; a shaft rotatably inserted into the sleeve; and a rotor hub fixed to a top end portion of the shaft to be rotated together therewith and provided with an extension wall to form a liquid-vapor interface together with an outer circumferential surface of the sleeve, wherein the extension wall is provided with a protrusion portion protruded in an inner radial direction so as to reduce leakage of a lubricating fluid.
|
| 地址 |
Suwon KR |
