Integrated electronic card-frame assembly for a rigid disk drive

Details Integrated electronic card-frame assembly for a rigid disk drive Integrated electronic card-frame assembly for a rigid disk drive

1989-01-31

1991-08-06

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

050382390

ABSTRACT:
A disk drive within the dimensional confines of a form factor can optimize volumetric density by using the full height dimension to house disks, but must thereafter utilize the remaining space for electrical components. The structure shown uses a stack of parallel cards with an interface card on the rear end wall to provide the principal drive control and data circuits exterior of the head-disk assembly (HDA). The motor driver circuitry is mounted on a flat flexible cable and is secured to the front wall at the opposite end of the drive in heat transfer relation. The heat generating motor drive circuits are physically isolated from the data/control circuits by the frame and HDA while some of the printed circuit cards are secured to the frame in a manner that enhances rigidity; the allocation of modules to the cards anticipates flow of data and control signals to minimize the number of connections and signal delays that impair performance.

REFERENCES:
patent: 4714972 (1987-12-01), Biermeier et al.

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