Plural disc arrangement and cooling system therefore

Details Plural disc arrangement and cooling system therefore Plural disc arrangement and cooling system therefore

1989-08-30

1991-08-20

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 3314

Patent

active

050419315

ABSTRACT:
A rotating disc device for storing digital data, comprising: a storage unit containing a spindle motor, a disc for storing digital data thereon and rotating by being driven by the spindle motor, a head for writing and reading data on the disc, and a positioning mechanism for positioning the head; a driver circuit for driving the spindle motor and the positioning mechanism; and a control circuit for controlling the storage unit. A first power supply unit for supplying electric power to the driver circuit, is positioned adjacent to the driver circuit; and a second power supply unit for supplying electric power to the control circuit, is positioned adjacent to the control circuit. Further, a first cooling fan is provided for cooling the first power supply unit, the storage unit, and the driver circuit; and a second cooling fan is provided for cooling the second power supply unit and the control circuit.

REFERENCES:
patent: 3729201 (1973-04-01), Dollenmayer
patent: 3912278 (1975-10-01), Teutsch
patent: 4763211 (1988-08-01), Yamamoto et al.
"Mechanical Design of a Large Disc Drive", Smith, Hewlett-Packard Journal, vol. 35, Jan. 1984, No. 1, pp. 20-22.
"Removable Cartridges Combine Portability with High Reliability", Hinkley et al, Computer Technology Review, vol. 4, Feb. 1984, No. 1, pp. 223-226.
IBM Technical Disclosure Bulletin, vol. 28, No. 12, May 1986, p. 5403.
Patent Abstracts of Japan, vol. 10, No. 149 (P-461) [2206], May 30, 1986 of Japanese Patent Appln. No. 61-3326, Jan. 9, 1986.

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