System, method and apparatus for wall slot in disk drive bypass channel for enhanced voice coil motor cooling

a voice coil motor and bypass channel technology, applied in the field of hard disk drives, can solve the problems of catastrophic failure of the drive, degrade the performance of the drive, and prone to heat up of the vcm, so as to improve the cooling efficiency of the vcm, improve the cooling efficiency, and improve the cooling efficiency.

Inactive Publication Date: 2009-04-23
WESTERN DIGITAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a way to improve the cooling efficiency of VCMs in hard disk drives (HDD). By adding a small hole near the center of the bypass channel, some of the air flows through it instead of directly hitting the surface of the VCM's components. This allows more space around the component without having any extra parts attached to it. Additionally, this design also increases the size of the coils used for cooling purposes compared to previously designed systems. Overall, these technical improvements help prevent damage caused by excessive heat buildup on certain components within the HDD.

Problems solved by technology

This patent describes various technical problem addressed in the patent text relating to the cooling and maintenance of electronic components like hard discs used in computer servers. Current methods involve using fans to circulate air around the components while they work properly. However, these solutions result in increased power consumption due to fan motors and require large space. Additionally, there is a risk of contamination when dust enters the equipment through small openings in the disk drive. Therefore, it is necessary to provide better ways to control the temperature of the component without increasing power consumption.

Method used

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  • System, method and apparatus for wall slot in disk drive bypass channel for enhanced voice coil motor cooling
  • System, method and apparatus for wall slot in disk drive bypass channel for enhanced voice coil motor cooling
  • System, method and apparatus for wall slot in disk drive bypass channel for enhanced voice coil motor cooling

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Embodiment Construction

[0017]Referring to FIGS. 1 and 2, one embodiment of a system, method, and apparatus for an information storage system comprising a magnetic hard disk file or drive 111 for a computer system is shown. Drive 111 has an outer housing including a base 113 and top cover (not shown). The housing contains a disk pack having at least one media disk, e.g., magnetic disk 115. The disks 115 are rotated (see arrows 205) by a spindle motor assembly having a central drive hub 117. An actuator 121 comprises a plurality of parallel actuator arms 125 in the form of a comb that is pivotally mounted to base 113 about a pivot assembly 123. A controller 119 is also mounted to base 113 for selectively moving the comb of arms 125 relative to disk 115.

[0018]Each arm 125 has extending from it at least one cantilevered load beam and suspension 127. A magnetic read / write transducer or head is mounted on a slider 129 and secured to a flexure that is flexibly mounted to each suspension 127. The read / write head

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Abstract

A hard disk drive bypass channel architecture incorporates enhanced cooling for voice coil motors. A cooling slot formed in a bypass channel component that is adjacent to the VCM alleviates VCM overheating problems. The slot compromises airflow from the bypass channel to provide sufficient secondary flow to cool the VCM and actuator coil area. The slot may be formed in the integrated wall of the spoiler or diverter. The spoiler has an extension in which the cooling slot is formed.

Description

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Claims

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Application Information

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Owner WESTERN DIGITAL TECH INC
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