Browse Prior Art Database

Push/ Pull Cooling System with Single Blower

IP.com Disclosure Number: IPCOM000050969D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 65K

Publishing Venue

IBM

Related People

Cole, AS: AUTHOR [+2]

Abstract

Apparatus is described for cooling logic/memory circuit cards. A particular system enclosure is provided to improve cooling of new technologies with much higher chip module card concentrations and to make use of a single blower instead of three fans as is typically provided.

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Push/ Pull Cooling System with Single Blower

Apparatus is described for cooling logic/memory circuit cards. A particular system enclosure is provided to improve cooling of new technologies with much higher chip module card concentrations and to make use of a single blower instead of three fans as is typically provided.

The design is shown in the drawing. The system enclosure 1 is so designed that fresh room air is pulled through logic/memory cards 2 via scroll cage blower
3. The exhaust of the blower (preheated and mixed) is then pushed through the power supply 4. (The power supply, due to high voltage components, is separated by a partition from the logic section.) The air is allowed to leak through various openings (for cables) around the power supply. Additional openings 5 are generated on the side of the box so that the hot air exhausts into the frame in which the system is mounted. There is a front cover 6 for the power supply which prevents recirculation of air. The blower between logic and power supply accomplishes the following. The turbulence generated by the blades enhances the thermal capabilities beyond anticipated increase due to increase in velocity. The logic and power are cooled serially, logic first. The scheme uses a single, more efficient blower instead of three less efficient fans. Increased air flow is obtained with decrease in (a) noise level and (b) power dissipation at the fans (conservation of energy). The exhaust system is such that the blower is completely enclosed in the system, resulting in lower noise level. Since...