Spindle motor and optical disc drive having the same
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United States of America Patent
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-
Oct 25, 2011
Grant Date -
Aug 19, 2010
app pub date -
Apr 7, 2009
filing date -
Feb 18, 2009
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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