发明名称 |
SPINDLE MOTOR AND HARD DISK DRIVE INCLUDING THE SAME |
摘要 |
There is provided a spindle motor including: a shaft including a body portion having a fixing recess formed on a lower portion thereof, a flange portion extending in an outer radial direction from an upper portion of the body portion, and a first insertion portion extending downwardly from the flange portion in an axial direction; a lower thrust member including a fixed portion inserted into the fixing recess, a disk portion extending from the fixed portion in an outer radial direction, and first and second protrusion portions extending from the disk portion in the axial direction; a base member coupled to the second protrusion portion; and a rotating member forming a bearing clearance with the shaft and provided to be rotatable with respect to the shaft. |
申请公布号 |
US2014160594(A1) |
申请公布日期 |
2014.06.12 |
申请号 |
US201313800942 |
申请日期 |
2013.03.13 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
SMIRNOV Viatcheslav |
分类号 |
H02K7/08;G11B19/20 |
主分类号 |
H02K7/08 |
代理机构 |
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代理人 |
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主权项 |
1. A spindle motor comprising:
a shaft including a body portion having a fixing recess formed on a lower portion thereof, a flange portion extending in an outer radial direction from an upper portion of the body portion, and a first insertion portion extending downwardly from the flange portion in an axial direction; a lower thrust member including a fixed portion inserted into the fixing recess, a disk portion extending from the fixed portion in an outer radial direction, and first and second protrusion portions extending from the disk portion in the axial direction; a base member coupled to the second protrusion portion; and a rotating member forming a bearing clearance with the shaft and provided to be rotatable with respect to the shaft, wherein a first recess portion accommodating the first insertion portion is provided in an upper portion of the rotating member and a second recess portion accommodating the first protrusion portion is provided in a lower portion of the rotating member, and an upper labyrinth sealing portion is provided between an outer edge of the flange portion and the rotating member.
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地址 |
Suwon KR |