A contact read-write hard disk with multiple magnetic heads side by side

Abstract

According to a solution of a multi-magnetic-head hard disk provided by the invention, an existing Winchester hard disk structure is changed, and the read-write speed is greatly improved. Specifically,a plurality of contact type read-write magnetic heads are arranged in the radial direction and the annular direction of a disc, that is, a layer of graphene or other ultra-smooth materials is attached to the surface of each read-write magnetic head, each magnetic head arm is provided with a plurality of branches, each branch is provided with a plurality of magnetic heads, and each magnetic head arm is driven in a piezoelectric driving mode. For the hard disk sequential reading and writing, the reading and writing speed is approximately in direct proportion to the total number of magnetic heads. For random reading and writing of the hard disk, the radially arranged magnetic heads can reduce the lane finding time, and the annularly arranged magnetic heads can reduce the rotation delay, so that the random reading and writing speed of the hard disk can be improved, and the transmission speed of internal data is further improved.

Description

technical field [0001] The invention belongs to the field of storage devices, in particular to a contact type read-write hard disk with multiple magnetic heads arranged side by side. Background technique [0002] Nowadays, no matter in terms of read / write speed or storage density, the development of hard drives is facing a bottleneck. Solid-state drives are developing rapidly, and their reading and writing speeds are significantly higher than those of mechanical hard drives. However, their unit storage costs are too high, their security is insufficient, data is basically irreparable after damage, and their service life is short. These fatal flaws greatly restrict its development. [0003] The internal data transmission speed of existing mainstream mechanical hard drives is generally between 20MB / s-40MB / s, and the highest is only about 50MB / s. In order to increase the internal transmission speed of the hard disk, the efficiency of the mechanical device must be improved. For...

AI Technical Summary

Problems solved by technology

[0012] Since the invention of the Winchester hard disk by IBM in 1973, the core mechanical structure of the hard disk has basically not undergone major changes. We cannot greatly reduce the access time of the hard disk. This is the main problem of the poor internal transmission performance of the hard disk.

And just using multiple magnetic heads to improve the read and write speed of the hard disk, the effect is not obvious

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