Spindle motor and optical disc drive having the same

Details Spindle motor and optical disc drive having the same Spindle motor and optical disc drive having the same

2009-04-07

2011-10-25

Pham, Ly D (Department: 2827)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

C720S695000

Reexamination Certificate

active

08046786

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.

REFERENCES:
patent: 5457588 (1995-10-01), Hattori et al.
patent: 5831355 (1998-11-01), Oku
patent: 6097121 (2000-08-01), Oku
patent: 2005/0071860 (2005-03-01), Kim et al.
patent: 2005/0086678 (2005-04-01), Miyamori et al.
patent: 2006/0085807 (2006-04-01), Nishidate
patent: 06189490 (1994-07-01), None

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