Means for temperature control of heated surfaces
First Claim
1. A heat sink structure including a heated surface and further including a heat exchange surface on the interior surface thereof, said structure providing means for enclosing said heat exchange surface in a fluid tight manner and including means for providing a flow of fluid to remove heat from said heat exchange surface, said heat sink structure having at least one of a variable wall thickness separating said heated surface from said fluid cooled surface and a variable distribution of heat flux on said heated surface, the improvement wherein said fluid cooled heat exchange surface includes:
- means, disposed on said fluid cooled heat exchange surface in a variable manner commensurate with said variable wall thickness and said variable distribution of heat flux such that an approximately uniform temperature is achieved over said heated surface
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Accused Products
Abstract
A method for providing an approximately uniform temperature distribution on a cold plate that has at least one of a non-uniform temperature distribution on its heated surface and non-uniform wall thickness separating the heated surface from the generally opposing fluid cooled surface. Low thermal conductivity material is selectively deposited on the fluid cooled surface of the cold plate such that the resulting local thermal resistivity combined with the corresponding local heat flux results in an approximately constant temperature over the heated surface on the cold plate.
27 Citations
13 Claims
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1. A heat sink structure including a heated surface and further including a heat exchange surface on the interior surface thereof, said structure providing means for enclosing said heat exchange surface in a fluid tight manner and including means for providing a flow of fluid to remove heat from said heat exchange surface, said heat sink structure having at least one of a variable wall thickness separating said heated surface from said fluid cooled surface and a variable distribution of heat flux on said heated surface, the improvement wherein said fluid cooled heat exchange surface includes:
means, disposed on said fluid cooled heat exchange surface in a variable manner commensurate with said variable wall thickness and said variable distribution of heat flux such that an approximately uniform temperature is achieved over said heated surface - View Dependent Claims (2, 3)
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4. A heat sink structure including a heated surface and including a heat exchange surface on the interior surface thereof, said structure providing means for enclosing said heat exchange surface in a liquid tight manner and including means for providing a flow of coolant liquid to remove heat from said heat exchange surface by nucleate boiling, said heat sink structure having at least one of a variable wall thickness separating said heated surface from said liquid cooled surface and a variable distribution of heat flux on said heated surface, said liquid cooled heated surface further includes:
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means, disposed on said heat exchange surface for forming pressure gradients in said liquid having a component perpendicular to said heat exchange surface without substantially impeding the relative velocity between said heat exchange surface and said Liquid, said component having a magnitude directly proportional to the square of the relative velocity between said heat exchange surface and said liquid, to facilitate removal of nucleate bubbles, the improvement wherein said liquid cooled heat exchange surface includes; means, disposed on said liquid cooled heat exchange surface in a variable manner commensurate with said variable wall thickness and said variable distribution of heat flux such that an approximately uniform temperature is achieved over said heated surface. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification