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US 8,046,786 B2Granted
Spindle motor and optical disc drive having the same
AssigneePhilips & Lite-On Digital Solutions Corporation
InventorsShih-Lin Yeh, Chung-Chou Fan, Chun-Lung Ho, Wen-Hong Wang
Life of this patent
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Abstract
A spindle motor includes a base plate, a stator, and a rotor. The base plate has a plurality of air-guiding holes. The stator includes a bearing portion and a plurality of coil portions. The bearing portion is fixed on the base plate. The coil portions are connected to and surrounded the bearing portion, and are disposed above the air-guiding holes. The rotor is rotatably mounted to the bearing portion and disposed adjacent the coil portions.
Claims9
A spindle motor comprising:
- a base plate having a plurality of air-guiding holes;
- a stator comprising:
- a bearing portion fixed on the base plate;
- and
- a plurality of coil portions connected to and surrounding the bearing portion and disposed right above the air-guiding holes;
- and
- a rotor pivotably mounted to the bearing portion and disposed adjacent the coil portions, wherein the airflow generated by the rotating of the rotor flows through the air-guiding holes.
4 more elements
An optical disc drive comprising:
- a housing;
- a traverse disposed inside the housing;
- an optical pickup disposed on the traverse;
- and
- a spindle motor disposed inside the housing, the spindle motor comprising:
- a base plate mounted on the traverse and having a plurality of air-guiding holes;
- a stator comprising:
- a bearing portion fixed on the base plate;
- and
- a plurality of coil portions connected to and surrounding the bearing portion
- and disposed right above the air-guiding holes;
- and
- a rotor pivotably mounted to the bearing portion and disposed adjacent the coil portions, wherein the airflow generated by the rotating of the rotor flows through the air-guiding holes.
10 more elements
Dependencies are inferred from the claim text.