Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2002-07-23
2004-07-20
Schuberg, Darren (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S690000, C454S184000, C165S104340
Reexamination Certificate
active
06765795
ABSTRACT:
FIELD OF THE INVENTION
The present invention is related to computer system cooling, and more particularly to a modular fan brick and method for exchanging air in a brick-based computer system.
BACKGROUND OF THE INVENTION
Modern computer systems typically generate a great deal of heat in a very small space. Some computer systems use air cooling techniques to draw heat away from critical components in the computer system. Air cooling is used on computers ranging from personal computers and laptops to minicomputer and mainframe systems. Air cooling systems typically use fans, or some other air moving device, to move air across electrical components in the computer system.
In conventional computer systems, fans are mounted inside of the system being cooled in order to either suck air from, or force air into, the computer system. Computer systems are continually being developed that pack more devices in smaller spaces such that there is a great deal of heat generated per unit volume. The cooling systems in such systems typically need to exchange large volumes of air to ensure that an adequate amount of heat is removed from the system. Failure to exchange adequate amounts of air can cause overheating that results in system error or failure.
Some computer systems are modular in that they are formed of one or more bricks that fit into a rack. Each brick typically contains its own electronics and fans to cool the electronics. The fans occupy valuable space within each brick that may otherwise be taken up by heat sinks and/or additional electronics. In addition, since the fans are positioned within each brick maintenance and/or replacement of a failed fan must typically be performed by qualified technicians because of potential physical and electrical dangers. The fans within each brick are also powered by currents that generate unwanted electromagnetic interference within the brick.
Thus, what is needed is a computer system and method for efficiently exchanging air with modular bricks in a brick-based computer system. The computer system and method should reduce downtime due to fan failure while at the same time exchanging adequate amounts of air through each modular brick. It would also be desirable if such a system and method utilized no space within each brick and permitted fan replacement by non-technical workers while the electronics system was running.
SUMMARY OF THE INVENTION
A modular fan brick and method for exchanging air in a brick-based computer system. The modular fan brick may be one brick in a brick-based computing system such that the modular fan brick fits into a rack with the other bricks. The modular fan brick exchanges air with one or more of the other modular bricks.
The modular fan brick includes one or more fans that are easily replaced by non-technical workers. In addition, placing the fans in a separate modular brick (i) allows electrical designers to locate additional electronics and/or heat sinks within the other modular bricks that include electronic components; and (ii) removes the electromagnetic interference, which is generated by the current that powers the fans, from the bricks that include electronic components.
One aspect provides a modular computing system that includes an enclosure, a first brick and a second brick. The first brick includes electronic components and is mounted in the enclosure. The second brick is also mounted in the enclosure and includes at least one fan to exchange air between the first brick and the second brick to cool the electronic components in the first brick.
Another aspect provides a method for directing air through a brick-based computer system. The method includes placing a first brick that includes electronic components into the computer system and placing a second brick that includes at least one fan into the computer system. The method further includes exchanging a fluid, such as air, between the first brick and the second brick to cool the electronic components in the first brick.
Still another aspect provides a modular computing system that includes an enclosure with a rack. A plurality of modular bricks that each include heat-generating electronic components are mounted in the rack. A fan brick that includes at least one fan is also mounted in the rack. The fan brick exchanges air between each modular brick and the fan brick to cool the electronic components in each of the modular bricks.
REFERENCES:
patent: 5398159 (1995-03-01), Andersson et al.
patent: 6041851 (2000-03-01), Diebel et al.
patent: 6375561 (2002-04-01), Nicolai et al.
patent: 6457949 (2002-10-01), Bendikas et al.
patent: 6499609 (2002-12-01), Patriche et al.
patent: 6504717 (2003-01-01), Heard
patent: 6554697 (2003-04-01), Koplin
Edwards Anthony Q.
Schuberg Darren
Schwegman Lundberg Woessner & Kluth P.A.
Silicon Graphics Inc.
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