Browse Prior Art Database

Optimized Ventilation Grill for Personal Computers

IP.com Disclosure Number: IPCOM000110294D
Original Publication Date: 1992-Nov-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Related People

Barina, RM: AUTHOR [+3]

Abstract

Described is a hardware implementation which optimizes the louver pattern of ventilation grills so that only one fan is required to provide the required cooling of personal computers (PCs).

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Optimized Ventilation Grill for Personal Computers

       Described is a hardware implementation which optimizes
the louver pattern of ventilation grills so that only one fan is
required to provide the required cooling of personal computers (PCs).

      In prior art, multiple fans have been required to increase the
convection currents in areas of the PC where components could exceed
their thermal limits.  The concept described herein provides a means
whereby only one fan is required to provide the required cooling.
The optimization of the louver grill pattern at the left side of the
PC cabinet enables the air currents to be concentrated toward those
components with the higher temperature coefficient.

      Fig. 1 shows the louver grill pattern as used in an entry level
system with the minimum number of louvers required.  When a PC is
expanded by adding additional functions, such as increased memory and
input/output (I/O) features, the temperature must be reduced so as to
meet the required cooling requirements.  To accommodate the increase
in temperature, additional louvers and fans must be added.  Fig. 2
shows the louver grill pattern as used with all louvers open.  Fig. 3
shows the optimized louver grill pattern that provides the required
cooling of all system components without requiring additional fans,
air scoops or special air manifolds.  The optimization enables the
air currents to be concentrated toward those components requiring the
greatest coo...