Spindle motor

Details Spindle motor Spindle motor

2006-10-10

2006-10-10

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07119464

ABSTRACT:
The invention relates to a spindle motor, particularly for the purpose of driving the platters in hard disk drives having a baseplate, a stator arrangement that is stationary with respect to the baseplate, a shaft and a bearing system to rotatably support a rotary driven rotor connected to the shaft. In order to create a spindle motor in which it is possible to connect the shaft to the rotor with a high holding force and improved running precision, provision is made according to the invention for the shaft to be at least partly formed as a hollow shaft and for the rotor to have a shaft shoulder aligned concentric to its rotational axis which is inserted into the hollow shaft and firmly connected to the shaft.

REFERENCES:
patent: 5357163 (1994-10-01), Minakuchi et al.
patent: 6175547 (2001-01-01), Kogure
patent: 6252322 (2001-06-01), Kawawada et al.
patent: 6271612 (2001-08-01), Tanaka et al.
patent: 2002/0025090 (2002-02-01), Sakatani et al.
patent: 2003/0048575 (2003-03-01), Nishimura et al.
patent: 0410293 (1991-01-01), None

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