Disk drive device
AssigneeSamsung Electro-Mechanics Japan Advanced Tech. Co. Ltd.
InventorKazuhiro MATSUO
Life of this patent
Estimating the term…
Abstract
A disk drive device includes a chassis, a top cover fixed to a chassis, a rotating body on which a disk retained in a disk retaining space formed between the chassis and the top cover is to be mounted, and a bearing body that supports the rotating body in a freely rotatable manner relative to the chassis. The bearing body has a lubricant applied in a predetermined area, and a capturer that captures the vaporized lubricant from the gas-liquid interface is provided in a space in communication with the disk retaining space from the gas-liquid interface of the lubricant.
Claims20
A disk drive device comprising:
- a chassis;
- a shaft having a first end fixed to the chassis;
- a top cover fixed to a second end of the shaft;
- a rotating body on which a recording disk is to be mounted, the recording disk being retained in a disk retaining space formed between the top cover and the chassis;
- and
- a bearing body that supports the rotating body in a freely rotatable manner relative to the chassis around the shaft,
- wherein:
- the bearing body has a lubricant applied in a gap between the rotating body and the shaft;
- the lubricant has a first gas-liquid interface between the rotating body and the shaft at a second-end side in an axial direction of the shaft relative to the chassis;
- and
- a first capturer which is annular around the shaft and which captures the vaporized lubricant from the first gas-liquid interface is provided in a space in communication with the disk retaining space from the first gas-liquid interface.
A disk drive device comprising:
- a chassis;
- a shaft body including a shaft having a first end fixed to the chassis;
- a stator core fixed to the chassis around the shaft body, and including coils;
- a top cover fixed to a second end of the shaft;
- a rotating body on which a recording disk is to be mounted, and forms a first space that surrounds the stator core, the recording disk being retained in a disk retaining space formed between the top cover and the chassis;
- and
- a bearing body that supports the rotating body in a freely rotatable manner relative to the chassis around the shaft,
- wherein:
- the bearing body has a lubricant applied in a gap between the shaft body and the rotating body;
- the lubricant has a second gas-liquid interface at an opposite side to the second end in an axial direction;
- the first space is in communication with the disk retaining space from the second gas-liquid interface;
- and
- a second capturer which is annular around the shaft body, and which captures the vaporized lubricant from the second gas-liquid interface is provided in the first space.
A disk drive device comprising:
- a chassis;
- a shaft body including a shaft having a first end fixed to the chassis;
- a top cover fixed to a second end of the shaft;
- a rotating body on which a recording disk is to be mounted, the recording disk being retained in a disk retaining space formed between the top cover and the chassis;
- and
- a bearing body that supports the rotating body in a freely rotatable manner relative to the chassis around the shaft,
- wherein:
- the bearing body has a lubricant applied in a gap between the rotating body and the shaft body;
- the lubricant has a gas-liquid interface between the shaft body and the rotating body;
- and
- an annular capturer which is annular around the shaft body and which captures the vaporized lubricant from the gas-liquid interface is provided in a space in communication with the disk retaining space from the gas-liquid interface.
Dependencies are inferred from the claim text.