| 发明名称 | Disk drive unit having gas-liquid interface between fixed body and rotor | ||
| 摘要 | A disk drive unit includes a rotor configured to rotate a disk accommodated within a disk accommodating space and set thereon, a fixed body configured to rotatably support the rotor, a fluid dynamic pressure generating part provided between the fixed body and the rotor, and a plurality of ring-shaped members, provided in an overlapping manner along a direction of a rotational axis of the rotor within a space that communicates the disk accommodating space and a gas-liquid interface of the lubricant, and covering a gap between the rotor and the fixed body. | ||
| 申请公布号 | US9019656(B2) | 申请公布日期 | 2015.04.28 |
| 申请号 | US201414196036 | 申请日期 | 2014.03.04 |
| 申请人 | Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. | 发明人 | Kodama Mitsuo;Sugiki Ryusuke |
| 分类号 | G11B19/20;F16C32/06;H02K7/08;F16C33/74 | 主分类号 | G11B19/20 |
| 代理机构 | IPUSA, PLLC | 代理人 | IPUSA, PLLC |
| 主权项 | 1. A disk drive unit comprising: a rotor, including a sleeve, and configured to rotate a disk accommodated within a disk accommodating space and set thereon; a fixed body, including a shaft body, and configured to rotatably support the rotor; a fluid dynamic pressure generating part provided between the fixed body and the rotor; and a plurality of ring-shaped members, provided in an overlapping manner along a direction of a rotational axis of the rotor within a space that communicates the disk accommodating space and a gas-liquid interface of the lubricant, and covering a gap between the rotor and the fixed body, wherein the gas-liquid interface of the lubricant is formed between the shaft body and the sleeve, wherein a tapered seal in which a gap between the shaft body and the sleeve gradually increases in a direction towards the plurality of ring-shaped members is provided in a part where the gas-liquid interface is formed, and wherein the tapered seal seals the lubricant by capillarity. | ||
| 地址 | Shizuoka JP | ||