Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1995-03-06
1997-01-28
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361700, 16510433, H05K 720
Patent
active
055983200
ABSTRACT:
A rotatable and slidable heat pipe apparatus for transferring heat away from a microprocessor chip more rapidly than by heat sink surface area dissipation to the surrounding air alone, comprising a heat sink with an integral cylindrical passageway adapted to receive a first end of a heat pipe shaped like a crankshaft, and a heat spreader formed from a metal plate with a first end rolled up to define a cylindrical opening adapted to receive a second end of the heat pipe. The heat spreader is attached to an underside of a keyboard. Since the heat pipe is able to rotate within the cylindrical passageway and the cylindrical opening, the keyboard can be raised to an open position and lowered to a closed position quickly and simply without the risk of breaking or bending the heat pipe, and manufacturing position tolerances between the heat pipe apparatus components are increased resulting in a simplified manufacturing process. The heat pipe can also be slid in to and out of the cylindrical passageway or the cylindrical opening, thereby enabling computer manufacturers to incorporate the heat pipe into portable battery powered notebook-type computer systems designed to allow a user to remove, replace, or swap internal components by simply flipping open or removing the keyboard, and further enabling a user to perform maintenance work or repairs on the computer system without concern for damage to the heat pipe.
REFERENCES:
Heat Pipe Design Guide for Notebook Computers--Wendy Lul, Jan. 1995, Intel.
Products Data Guide from Thermacore, Inc.--Miniature Heat Pipes For Notebook Computers--No date.
Products Data Guide from Thermacore, Inc.--Pentium Processor Thermal Management System--No date.
Thermacore Inc. Product Data Guide, Part #HP-NB-TCP(610/75).
Toedtman Thomas
Welch Randall S.
AST Research Inc.
Gandhi Jayprakash N.
Picard Leo P.
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