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Fluid-cooled heat sink for use in cooling various devices

United States Patent

September 12, 2017
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
The disclosure provides a fluid-cooled heat sink having a heat transfer base, a shroud, and a plurality of heat transfer fins in thermal communication with the heat transfer base and the shroud, where the heat transfer base, heat transfer fins, and the shroud form a central fluid channel through which a forced or free cooling fluid may flow. The heat transfer pins are arranged around the central fluid channel with a flow space provided between adjacent pins, allowing for some portion of the central fluid channel flow to divert through the flow space. The arrangement reduces the pressure drop of the flow through the fins, optimizes average heat transfer coefficients, reduces contact and fin-pin resistances, and reduces the physical footprint of the heat sink in an operating environment.
Bharathan; Desikan (Lakewood, CO), Bennion; Kevin (Littleton, CO), Kelly; Kenneth (Evergreen, CO), Narumanchi; Sreekant (Littleton, CO)
U.S. Department of Energy (Washington, DC)
14/ 626,964
February 20, 2015
GOVERNMENT INTERESTS The United States Government has rights in this invention pursuant to Contract No. DE-AC36-08GO28308, between the U.S. Department of Energy (DOE) and the Alliance for Sustainable Energy.