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Combined type magnetic suspension hard disk driver

A hard disk drive and magnetic levitation technology, applied in the recording of information on the disk, instruments, magnetic recording, etc., can solve the problems of heat, wear, vibration and noise of the mechanical system of the hard disk, improve the spindle speed, avoid static electricity interference, The effect of improving reliability

Inactive Publication Date: 2008-01-23
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Speeding up the rotation speed of the spindle can increase the read and write speed of the hard disk, but it will cause problems such as heating, wear, vibration and noise of the hard disk mechanical system

Method used

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  • Combined type magnetic suspension hard disk driver
  • Combined type magnetic suspension hard disk driver

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Embodiment Construction

[0011] The present invention is a kind of composite magnetic levitation hard disk drive, and its structure is shown in Fig. 1, Fig. 2: comprises disk motor, hard disk disk 1, rotating shaft 3 and its support, control mechanism, measures the displacement of the spatial attitude of hard disk disk 1 The sensor 18, and the antistatic mechanism composed of the conductive liquid 12 and the conductive needle 10 immersed in it in suspension. The supporting mechanism is a magnetic force bearing, which includes a repulsion type passive tapered radial bearing composed of a permanent magnetic ring 13 and a permanent magnetic cone disk 14 , and a disk bearing composed of an iron core 6 and a coil 7 . The upper end, the middle part and the lower end of the rotating shaft 3 are fixedly connected with the tray 4 , the permanent magnetic cone 14 and the conductive needle 10 respectively, and the lower part is embedded with the elastic retaining ring 9 . Permanent magnetic ring 13, stator 15 an...

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Abstract

The invention provides a combined type magnetic suspension hard disk driver comprising a disc motor, hard discs, a rotation shaft and its support and control device, a displacement transducer for measuring hard disc space attitude, and antistatic structure composed of conductive liquid and conductive pins.

Description

technical field [0001] The invention relates to a composite magnetic levitation hard disk drive. Background technique [0002] The most important components in a computer system include the CPU, graphics card, motherboard, memory, and hard disk. The only hard disk relies on mechanical means to read and write data, and the movement speed of the mechanical system is much slower than that of the circuit system. Therefore, the read and write speed of the hard disk becomes the bottleneck of further improving the computer speed. Speeding up the rotation speed of the spindle can increase the read and write speed of the hard disk, but it will cause problems such as heating, wear, vibration and noise of the hard disk mechanical system. The magnetic levitation hard disk keeps the hard disk platter in a suspended state by magnetic force, which avoids the above problems and provides a great space for the hard disk to increase the spindle speed. Contents of the invention [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B19/24H02K7/09
Inventor 王晓光江征风胡业发周祖德
Owner WUHAN UNIV OF TECH