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Suspension assembly and magnetic disk drive

A technology of disk drives and suspension components, applied in the direction of instruments, magnetic recording, arm parts, etc., can solve the problems of damaged bearings, heavy loads, etc.

Inactive Publication Date: 2005-03-09
HITACHI GLOBAL STORAGE TECH NETHERLANDS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the suspension assemblies described in Patent Documents 1 and 2, the load applied to the magnetic disk by the magnetic head is too large
As a result, the small spindle motor cannot turn the disk, so the rotor is misaligned relative to the stator, damaging the bearings that support the rotor

Method used

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  • Suspension assembly and magnetic disk drive
  • Suspension assembly and magnetic disk drive

Examples

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Embodiment Construction

[0037] Referring to the accompanying drawings, preferred embodiments of the present invention will be described below. figure 2 Shown is a compact disk drive 100 compliant with the Compact Flash Type 2 standard and equipped with a suspension assembly 104 in accordance with a preferred embodiment of the present invention. The outer dimensions of the disk drive 100 are 42.8mm x 36.4mm x 5mm. The recording medium is a magnetic disk 2 with a diameter of 1 inch. The box-shaped base 101 is made by press working. A spindle motor (not shown) is fixedly mounted on the bottom wall of the base 101 . The spindle motor has a fluid dynamic bearing (FDB). The disk 2 is installed and fixed on the spindle 102 with a top plate 103 .

[0038] Suspension assembly 104 is mounted on a load bearing shaft 105 which is rotatably supported on the bottom wall of base 101 . The voice coil motor (VCM) fixedly installed on the bottom wall of the base 101 drives the suspension assembly 104 to rotate, s...

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Abstract

A compact hard disk drive that operates silently at a low power consumption needs a suspension assembly that places a low load on the magnetic head. A suspension assembly 104 comprises a head arm 10 mounted on a carriage shaft 105, a load beam 20 capable of placing load on a magnetic head 3 and serving as a beam, and a flexure assembly 30. The flexure assembly 30 includes a flexure 31 formed by processing a thin metal sheet, an insulating layer 32 laminated to the flexure 31, a wiring pattern 33 formed on the insulating layer 32, and a protective layer 34 coating the wiring pattern 33. The flexure 31 has a flexible part 310 for placing load on the magnetic head 3, a gimbals 311 to which the magnetic head 3 is attached, and a base part 312 attached to the head arm 10. The elastic part 310 of the flexure 31 generates a very load in the range of about 0.1 to about 1 g.

Description

technical field [0001] This invention relates to disk drive suspension assemblies, and more particularly to a suspension assembly suitable for use in small disk drives, wherein the small disk drive is constructed from a relatively small number of parts and imposes low pressure on the disk. load. Background technique [0002] In order to store data, various forms of portable storage media are provided to various devices including personal computers (PCs) and digital cameras. In recent years, storage media having a small size and a large storage capacity have also been provided. Proposed Compact Flash based on Sun Disk's commercial sales  (ie one of the standards for compact memory cards) a portable hard disk drive (HDD) with a new component structure. [0003] For example, a small-sized HDD conforming to the Compact Flash Type 2 standards is a large-capacity HDD equipped with a magnetic disk having a diameter of 1 inch, a storage capacity of 1 GB, and a weight of only abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B21/21G11B5/48G11B5/60
CPCG11B5/4833G11B5/6005G11B5/486G11B21/21
Inventor 井上宏雄中村太一中尾兴次世良彰浩
Owner HITACHI GLOBAL STORAGE TECH NETHERLANDS BV
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