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Browse Prior Art Database

Liquid Immersion Cooling Scheme for Electronics Installed in an Open, Unsheltered Environment

IP.com Disclosure Number: IPCOM000118180D
Original Publication Date: 1996-Oct-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 88K

Publishing Venue

IBM

Related People

Anderson, TM: AUTHOR [+3]

Abstract

Disclosed is a method of packaging feature cards within a liquid immersion enclosure with required cooling apparatus. All components, feature cards and cooling apparatus are attached to a removable cover.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Liquid Immersion Cooling Scheme for Electronics Installed in an Open,
Unsheltered Environment

      Disclosed is a method of packaging feature cards within a
liquid immersion enclosure with required cooling apparatus.  All
components, feature cards and cooling apparatus are attached to a
removable cover.

      This disclosure presents a unique method of packaging feature
cards within a liquid immersion enclosure along with the required
thermal support apparatus to provide an easily manufactured and
serviced watertight unit for use in areas not normally associated
with computers - i.e., outdoors.  In addition to the need for service
accessibility, there will be taxing environmental requirements for
any external unit.  The external temperature may range from very low
subfreezing in the higher latitudes to extremely high temperatures in
desert climates.

      In order to have the cards accessible for service, which may
include adding additional cards or replacing cards in the field, it
is desirable to have all cards clearly exposed upon opening the door
of the enclosure.  Because of the immersion cooling approach used to
handle the high power dissipation, the door to the enclosure will be
the top cover.  This requirement is complicated by the need for a
liquid moving device and shrouding within the enclosure.  The Figures
show such an enclosure (101) attached to an exterior wall of a house
(102).  A removable internal rack of the enclosure (103) supports one
or more backplanes (104).  Feature cards (105) are attached to the
backplane.  The rack allow all cards to be removed at the same time,
if needed, but also allow the removal and replacement of an
individual card without interfering with the others.  In order to
meet the requirement of serviceability, the cooling hardware is
mounted to the door (106).  A single internal/external heat sink
(107) is a major part  of, and is sealed or molded into the...