Heat sink apparatus
First Claim
1. A heat sink apparatus comprisingbase plate means for thermal conduction therethrough,a plurality of elongate fin assembly means mounted on said base plate means for thermal conduction therethrough,each of said fin assembly means formed from a strip of thermally conductive material having a given thickness shaped into a plurality of corrugations having a given height and width wherein each of said corrugations has channel means for receiving fluid flow therethrough, andsaid channel means of each said corrugation having a longitudinal dimension corresponding to the width of said corrugation greater than the thickness of said strip of thermally conductive material,whereby when fluid flows through each of said channel means, thermal boundary layers are prevented from full development therewithin.
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Abstract
An improved heat sink apparatus that utilizes either natural or forced convection to transfer heat generated by a high temperature medium to a lower temperature medium or converts cold energy from a low temperature fluid or solid medium to a different or higher temperature stage or condition of energy. The apparatus includes a thermally conductive base plate, a plurality of thick corrugated finned assembly components constructed and arranged in abutting relationship and offset from each other so as to cause a circuitous path of fluid flow therethrough. The apparatus also may include the base plate and a plurality of thick, sawtooth shaped, or segmented fins mounted thereon. The length of fluid travel from one finned component to an abutting finned component along the heat transfer surface is controlled in order to prevent development of thermal boundary layer on the inner surface of the finned assembly components.
50 Citations
12 Claims
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1. A heat sink apparatus comprising
base plate means for thermal conduction therethrough, a plurality of elongate fin assembly means mounted on said base plate means for thermal conduction therethrough, each of said fin assembly means formed from a strip of thermally conductive material having a given thickness shaped into a plurality of corrugations having a given height and width wherein each of said corrugations has channel means for receiving fluid flow therethrough, and said channel means of each said corrugation having a longitudinal dimension corresponding to the width of said corrugation greater than the thickness of said strip of thermally conductive material, whereby when fluid flows through each of said channel means, thermal boundary layers are prevented from full development therewithin.
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10. A fin assembly component comprising
thermally conductive thick strip means for mounting on a base plate, each of said strip means formed to provide an undulating shape having in alternating sequence a closed end portion and an open end portion forming side by side channel means for receiving flow of fluid therethrough each said undulating shape having a given width, and each said channel means having a longitudinal dimension substantially corresponding to said width, and a plurality of said strip means arranged side-by-side in abutting relationship to each other and offset by a predetermined distance so as to prevent straight-through flow of fluid between each abutting strip means.
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12. Heat sink apparatus comprising
thermally conductive base plate means, a plurality of elongate fin assembly component means mounted side-by-side on said base plate means for thermal conductivity therebetween, each of said fin assembly component means including a thick strip of heat conductive material formed into a plurality of heat conducting elements wherein each of said heat conducting elements has heat element pitch means and a fluid flow channel, said plurality of said fin assembly component means arranged in abutting contact with each other and offset by a distance equal to said heat element pitch means of each said plurality of heat conducting elements, and each said fluid flow channel of each said heat conducting element operable to receive fluid flow therethrough and having a linear dimension at least equal to the thickness of said strip of heat conductive material, whereby when fluid flows through each said fluid flow channel thermal boundary layer is prevented from development on the inner peripheral surface of each said heat conducting element.
Specification