Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1989-04-20
1990-10-23
Wong, Peter S.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 67R, 310 91, 310156, 360 9807, 360 9908, 360 9911, H02K 524, H02K 500, H02K 2112
Patent
active
049654764
ABSTRACT:
An under-the-hub spin motor for a disk drive includes a stabilizer for supporting the outer diameter of the stator to stiffen the base of the spin motor. Stiffening the base in the region surrounding the shaft of the motor increases the resonant frequency of the spin motor, increasing the tolerance of the spin motor to applied vibrations. The stabilizer may be a ring formed integrally with the base plate of the disk drive or the mounting flange of the motor.
REFERENCES:
patent: 4129796 (1978-12-01), Papst
patent: 4285016 (1981-08-01), Gilovich
patent: 4336470 (1982-06-01), Gutris
patent: 4599664 (1986-07-01), Schuh
patent: 4612468 (1986-09-01), Sturm et al.
patent: 4634908 (1987-01-01), Shurm
patent: 4779165 (1988-10-01), Elsaesser et al.
Conner Peripherals, Inc.
LaBalle C. E.
Wong Peter S.
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