Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1998-07-08
1999-08-17
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361698, 361700, 361701, 361704, 361717, 361718, 361719, 257714, 257715, 174 151, 165 804, 16510433, 622592, H05K 720
Patent
active
059402709
ABSTRACT:
A cooling device for a machine, especially, but not limited to, a device for cooling the central processing unit (CPU) of a desktop computer, thereby increasing the speed at which it can operate. In the preferred embodiment, the cooling device includes a copper evaporation chamber and a conduit made of copper pipe having a condensation coil, which are connected in a single closed loop, and contain water. As heat is absorbed by the evaporation chamber from the CPU or other heat generating component, the water changes from liquid to gas, and gravity and pressure differences cause the water to circulate through the conduit. As heat is transferred from the conduit to its surroundings, the water changes from gas to liquid, and returns to the evaporation chamber. The high heat of vaporization and condensation of water allows heat to be efficiently transferred with a small difference in temperature between its liquid and gaseous states. The boiling point of the water is reduced by a partial vacuum inside the evaporation chamber and conduit, to reduce the temperature to which the CPU or other component can be efficiently cooled by the invention. Alternatively, other fluid having a high heat of vaporization and condensation may be substituted for water, and the other materials that are good conductors of heat may be substituted for copper in the evaporation chamber and conduit. The invention may be installed during manufacture, or it may be sold separately and installed later.
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Chervinsky Boris L.
Picard Leo P.
Swift Stephen Christopher
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