CN2669316Y

CN2669316Y - Multi-magnetic-head group hard disc

Info

Publication number: CN2669316Y
Application number: CNU2004200324271U
Authority: CN
Inventors: 源徐; 徐源
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-06
Filing date: 2004-01-06
Publication date: 2005-01-05
Anticipated expiration: 2014-01-06

Abstract

A multi-magnetic-head group hard disc of the utility model comprises a hard disc sheet, a magnetic-head group, a magnetic-head servo gear, a disc sheet servo gear, a control circuit for the read-write of the magnetic-head group and a signal cable. The multi-magnetic-head group hard disc is characterized in that a plurality of magnetic-head groups are installed in a hard disc box. While in read-write, a magnetic-head group nearest to an object file executes the file, making the mean moving distance of the magnetic-head group shortened considerably. Thereby the damage to the hard disc because of the back and forth movement of the magnetic-head group while in read-write diminishes and the service life of the hard disc is prolonged. Simultaneously the read-write speed of the hard disc is effectively improved.

Description

The multihead group hard disc

The utility model relates to hard disk of microcomputer, particularly a kind of multihead group hard disc.

Hard disk is one of external unit of microcomputer, is installed in the main frame, and it mainly is to be used for depositing very large-capacity data and program, is convenient to host computer invokes.Existing hard disk comprises disc, the magnetic head group, head servo, the disk sheet servo control mechanism, the magnetic head read-write control circuit is produced on the box body inside of a sealing, what rely on the high speed rotating of disk and magnetic head moves radially reading and writing of files, and these file branches are at the different parts of hard disk, so what the magnetic head group just need not stopped moves around, seek the file that to read and write, along with day by day increasing of file in the hard disk, file fragmentation also can day by day increase, make the magnetic head group searching reading and writing of files that moves around more continually, just the read or write speed of hard disk reduces on the one hand, increased the weight of the burden of hard disk on the other hand, in the course of time, hard disk can be subjected to damage in various degree, shorten the serviceable life of hard disk, caused hard disk to be scrapped.

The purpose of this utility model is exactly in order to overcome the weak point that above-mentioned hard disk exists, a kind of minimizing hard disk damage to be provided, and prolongs hard disk serviceable life, improves the multihead group hard disc of the read or write speed of hard disk.

Invention main points of the present utility model are, on the basis of existing hard disk, in hard-disk cartridge, increase again one or more magnetic head groups are installed, when disk will be read and write, judge that at first which magnetic head group is nearest from file destination, it is made as current magnetic head group and it is moved on to the file destination place, carry out read-write operation.The utility model is owing to adopted a plurality of magnetic head groups, during reading and writing of files by carrying out from the nearest magnetic head group of file destination, this mode of read-write nearby, the average moving distance of magnetic head group is shortened greatly, thereby improved the read or write speed of hard disk effectively, also reduce simultaneously the damage that when the magnetic head group moves around when read-write hard disk is caused, thereby prolonged the serviceable life of hard disk.

Accompanying drawing is the utility model multihead group hard disc structural representation

Below with reference to the accompanying drawing description detailed in addition to the utility model:

Hard disc 1 is installed in the hard-disk cartridge by hard disk fixed screw 9 and hard disc drive motor main shaft 8, two magnetic head groups 2 are installed in one 3.5 cun hard-disk cartridge side by side, fixing by magnetic head group axle 5, magnetic head group servo control mechanism 3, magnetic head group control circuit 7 integrates, and is connected with two magnetic head groups 2 respectively by magnetic head group signal cable 6 again.When only only reading and writing a file, wherein move to the file allocation table place from the nearest magnetic head group of file allocation table, after registering or searching, the magnetic head group nearest from file destination moves to the file destination place again, reads and writes, this is the simplest a kind of situation, in the time will on hard disk, carrying out the read-write of a plurality of files, also follow this principle of read-write nearby, will be from the nearest magnetic head group of goal track, move to goal track and read and write, this is more frequent a kind of working method.

Suitably increase the quantity of magnetic head group, can reach beneficial effect, as reducing the displacement of magnetic head group, thereby when reducing reading and writing of files to the damage of hard disk, improve read or write speed,, can bring the increase of manufacturing cost and the increasing of hard disk volume when the magnetic head group increases when too much.

Claims

1, a kind of multihead group hard disc comprises hard disc, magnetic head group, head servo, magnetic head group read-write control circuit, disc servo control mechanism, signal cable, it is characterized in that, a plurality of magnetic head groups are installed in hard-disk cartridge.

2, multihead group hard disc according to claim 1 is characterized in that, two magnetic head groups are installed in hard-disk cartridge.

3, two magnetic head groups according to claim 2 is characterized in that two magnetic head groups are installed in 3.5 cun standard hard drive boxes side by side.