| 发明名称 |
Spindle motor |
| 摘要 |
A spindle motor includes a sleeve fixedly installed on a base member; a shaft rotatably supported by the sleeve; a rotor hub fixedly installed on an upper end portion of the shaft to rotate together therewith; and a thrust plate fixedly coupled to the sleeve so as to be disposed to face a lower surface of the rotor hub and having a ring shape. The thrust plate includes a channel part formed therein in order to reduce a difference in pressure between a bearing clearance on an inner side thereof and a bearing clearance on an outer side thereof. The channel part is configured of grooves formed in a lower surface of the thrust plate and an inner peripheral surface thereof. |
| 申请公布号 |
US9059612(B2) |
申请公布日期 |
2015.06.16 |
| 申请号 |
US201213709759 |
申请日期 |
2012.12.10 |
| 申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
Kim Ju Ho |
| 分类号 |
F16C32/06;H02K5/15;H02K5/16;H02K5/167;G11B19/20;F16C17/04;F16C33/10;F16C33/12;F16C17/10 |
主分类号 |
F16C32/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A spindle motor comprising:
a sleeve fixedly installed on a base member; a shaft rotatably supported by the sleeve; a rotor hub fixedly installed on an upper end portion of the shaft to rotate together therewith; and a thrust plate fixedly coupled to the sleeve so as to be disposed to face a lower surface of the rotor hub and having a ring shape, wherein the thrust plate includes a channel part formed therein in order to reduce a difference in pressure between a bearing clearance on an inner side thereof and a bearing clearance on an outer side thereof, and the channel part is configured of grooves formed in a lower surface of the thrust plate and an inner peripheral surface thereof. |
| 地址 |
Suwon KR |
