US 12,324,127 B2
Folded-fin vapor chamber cold plate
Steven Dean, Chippewa Falls, WI (US); Ernesto J. Ferrer, Aguadilla, PR (US); John Paul Franz, Tomball, TX (US); and Laura Malcotti-Sanchez, Houston, TX (US)
Assigned to Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed by HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP, Houston, TX (US)
Filed on Jul. 19, 2022, as Appl. No. 17/867,873.
Prior Publication US 2024/0032249 A1, Jan. 25, 2024
Int. Cl. F28D 15/02 (2006.01); F28D 15/04 (2006.01); H05K 7/20 (2006.01)
CPC H05K 7/20327 (2013.01) [H05K 7/20336 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat removal apparatus, comprising:
a vapor chamber device comprising:
a base, and
a folded fin structure coupled to the base, the base and folded fin structure defining a vapor chamber containing a wick and a working fluid;
a cover coupled to the vapor chamber device, the cover and vapor chamber device defining a liquid chamber configured to receive liquid coolant; and
a plurality of turbulators disposed in the liquid chamber, the turbulators comprise a first subset of turbulators having a first length and a second subset of turbulators having a second length different than the first length;
wherein the folded fin structure comprises a plurality of folded fins defining a first plurality of grooves on a first side of the folded fin structure and defining a second plurality of grooves on a second side of the folded fin structure,
wherein the first plurality of grooves are part of the vapor chamber,
wherein the second plurality of grooves are part of the liquid chamber, and
wherein within each groove of the plurality of second grooves, the first subset of turbulators and the second subset of turbulators alternate along the length of the respective groove.