US 12,004,322 B2
Cold plate with uniform plenum flow
Mark D. Schultz, Ossining, NY (US); and Pritish Ranjan Parida, Cortlandt Manor, NY (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Dec. 26, 2020, as Appl. No. 17/134,383.
Prior Publication US 2022/0210946 A1, Jun. 30, 2022
Int. Cl. H05K 7/20 (2006.01); B33Y 80/00 (2015.01); F28F 3/12 (2006.01); H01L 23/473 (2006.01)
CPC H05K 7/20254 (2013.01) [F28F 3/12 (2013.01); H01L 23/473 (2013.01); B33Y 80/00 (2014.12)] 9 Claims
OG exemplary drawing
 
1. A cold plate apparatus comprising:
walls that surround an active volume adjacent to an inlet plenum, wherein the walls include an inlet opening at one end of a top side of the inlet plenum and a plenum opening between the inlet plenum and the active volume, wherein the walls comprise a top plate, a bottom plate, and a stack of at least three intermediate plates between the top plate and the bottom plate; and
a blocker that partially separates the inlet plenum from the active volume, wherein the blocker is structurally configured to preferentially redirect flow from the inlet plenum into the active volume;
wherein portions of the at least three intermediate plates form a deflector that protrudes from an outer wall of the inlet plenum toward the active volume, and wherein a bottommost of the intermediate plates protrudes further toward the active volume than does a topmost of the intermediate plates.