Browse Prior Art Database

Segmented Cooling for Personal Computers

IP.com Disclosure Number: IPCOM000106297D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 4 page(s) / 117K

Publishing Venue

IBM

Related People

Mansuria, MS: AUTHOR [+2]

Abstract

Disclosed is a segmented cooling scheme for personal computers (PCs) which improves the airflow and cooling system by creating separate linear airflow segments.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 56% of the total text.

Segmented Cooling for Personal Computers

      Disclosed is a segmented cooling scheme for personal computers
(PCs) which improves the airflow and cooling system by creating
separate linear airflow segments.

      A segmented cooling scheme for a floor standing (PC) system is
disclosed herein.  The scheme is illustrated in Fig. 1.  The
individual segments can be enlarged to accommodate more I/O (feature)
cards or DASDs.  The main features of the proposed scheme are
described below.

      The system is partitioned into two or more logical segments.
Each segment has its own inlet and exhaust louvers.  Each segment has
its own dedicated fan to provide cooling.  The fan size and type is
optimized for each segment depending upon segment power dissipation.
The fan assembly is also upgradable when segment power is increased.
The air flow in each segment is close to uniform and streamlined (no
turns) for optimum cooling.  Each segment impedance is much less than
overall system impedance with a single fan.  Hence, fan performance
is better and a smaller fan can be used.

      The total system power is divided among segments, so that there
is a rise in air temperature in each segment, but it will be much
less than the rise in air temperature with a single fan.The acoustic
level of multiple small fans at low or medium speeds will be lower
than that of a large fan at high speed.

      In the disclosed scheme, the exhaust louvers for the I/O card
segment c...