Cooling arrangement for hermetically sealed disk files
US4488192A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1446
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A movable head disk file is disclosed in which the disk enclosure is hermetically sealed to prevent contamination from the surrounding atmosphere from adversely affecting the head-disk interface relationship. The heat that is normally generated in the enclosure from the electrical components and as a result of the friction between gas molecules in the container and the surface of the rotating magnetic disks is transferred from the enclosure through the baseplate of the file to a thermal conduction module disposed outside the disk enclosure. The thermal conduction module is water cooled by a closed loop circulating system. The temperature of the enclosure is, therefore, controlled since the heat generated in the file is transferred to the thermal module through the baseplate which is in a thermal conducting relationship to the thermal module, whose temperature, in turn, is controlled by the velocity of the water circulating through the module. The walls of the enclosure may be insulated and a plurality of the files stacked next to each other if desired since there is no adverse thermal effects on the surrounding environment from any of the disk files. The heat that would normally be…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.