发明名称 |
Spindle motor |
摘要 |
There is provided a spindle motor including: a lower thrust member fixedly installed on a base member and including an extension part extended upwardly in an axial direction; a shaft having a lower end portion fixedly installed on the lower thrust member; a sleeve rotatably installed with respect to the shaft; an upper thrust member fixedly installed on the shaft to correspond to an upper portion of the sleeve; and a rotor hub rotating together with the sleeve, wherein an end portion of the extension part and a surface of the sleeve opposed thereto are provided with rounded surfaces. |
申请公布号 |
US9088186(B2) |
申请公布日期 |
2015.07.21 |
申请号 |
US201213709565 |
申请日期 |
2012.12.10 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
Park Young Ha |
分类号 |
F16C32/06;H02K7/08;H02K5/167 |
主分类号 |
F16C32/06 |
代理机构 |
|
代理人 |
|
主权项 |
1. A spindle motor comprising:
a lower thrust member fixedly installed on a base member and including an extension part extended upwardly in an axial direction; a shaft having a lower end portion fixedly installed on the lower thrust member; a sleeve rotatably installed with respect to the shaft; an upper thrust member fixedly installed on the shaft to correspond to an upper portion of the sleeve; and a rotor hub rotating together with the sleeve, wherein an end portion of the extension part and a surface of the sleeve opposed thereto are provided with rounded surfaces, and wherein the rounded surfaces form a tapered shape with a curved surface that serves to allow a lubricating fluid to be smoothly injected into a space formed between the rounded surfaces. |
地址 |
Suwon KR |