Structure of spindle motor in a disk drive and method of assembl

Details Structure of spindle motor in a disk drive and method of assembl Structure of spindle motor in a disk drive and method of assembl

1996-10-31

1999-08-24

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 90, 29596, 360 9807, 360 9908, H02K 500, H02K 1500, G11B 1702

Patent

active

059428201

ABSTRACT:
A spindle motor has a simple structure that is usable with a base having sufficient rigidity and enables heads to sandwich each recording disk outside the base. The spindle motor for rotating the disks and an actuator for driving the heads are assembled on the base into a disk drive. A rotor assembly of the spindle motor consists of a stationary shaft separable from the base, bearings attached around the stationary shaft, a hub installed around the bearings, a yoke attached to the hub, magnets attached to the yoke, and magnetic seals arranged at the top and bottom of the bearings, to seal the inside of the hub from the atmosphere in the disk drive. The stationary shaft has a skirt serving as a positioner for positioning the rotor assembly with respect to the base. The base has a hole for receiving the stationary shaft and stator coils concentrically arranged around the hole. The stationary shaft of the rotor assembly is engaged with the hole of the base, to complete the spindle motor.

REFERENCES:
patent: Re34270 (1993-06-01), Tochiyama et al.
patent: 4337491 (1982-06-01), Hasler et al.
patent: 4717977 (1988-01-01), Brown
patent: 4797762 (1989-01-01), Levy et al.
patent: 4905110 (1990-02-01), Krum et al.
patent: 4928029 (1990-05-01), Wright
patent: 4980587 (1990-12-01), Yonei et al.
patent: 5160865 (1992-11-01), Gururangan
patent: 5177650 (1993-01-01), Jabbari et al.
patent: 5402023 (1995-03-01), Nakanishi et al.

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