Method of making a thick, low cost liquid heat transfer plate with vertically aligned fluid channels
AssigneeSolid State Cooling Systems
InventorsLloyd F. Wright, Justice Carman
Life of this patent
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Abstract
A process for fabricating a low-cost high-efficiency liquid cold plate is described. The process uses a metal extrusion designed with internal fluid channels that have their major cross-sectional axes aligned perpendicular to the major surfaces of the extrusion. Particular dimensions for the cross-sections of the fluid channels and their spacings permit the extrusion process to be performed simply. A simple process for fabricating fluid inlet and outlet manifolds, creating turbulent flow inside the fluid channels, a method for capping the extrusion ends, and a method for improving the surface contact with heat generating components is described.
Claims14
A process of manufacturing a heat transfer plate comprising
- extruding a preform having a first surface and a second surface opposite said first surface and a plurality of fluid channels in a first direction between said first and second surfaces, each of said fluid channels having a cross-section perpendicular to said first direction, said cross-section having a major axis perpendicular to said first and second surfaces, and a minor axis perpendicular to and shorter than said major axis;
- cutting said preform in a second direction perpendicular to said first direction to define a plate having first and second ends from said preform;
- drilling a first manifold near said first plate end perpendicular to each of said fluid channel, said fluid channel fluidly connected to said first manifold;
- drilling a second manifold near said second plate end perpendicular to said fluid channel, said fluid channel fluidly connected to said second manifold;
- fixing first and second caps to said first and second plate ends respectively;
- and
- leveling at least one of said first and second surfaces of said plate.
Dependencies are inferred from the claim text.