US 12,464,679 B2
Folding thermal ground plane
Ryan J. Lewis, Boulder, CO (US); Yung-Cheng Lee, Boulder, CO (US); Ali Nematollahisarvestani, Boulder, CO (US); Jason W. West, Broomfield, CO (US); and Kyle Wagner, Minneapolis, MN (US)
Assigned to Kelvin Thermal Technologies, Inc., Boulder, CO (US)
Appl. No. 18/004,059
Filed by Kelvin Thermal Technologies, Inc., Boulder, CO (US)
PCT Filed Jun. 18, 2021, PCT No. PCT/US2021/038152
§ 371(c)(1), (2) Date Dec. 31, 2022,
PCT Pub. No. WO2021/258028, PCT Pub. Date Dec. 23, 2021.
Application 18/004,059 is a continuation of application No. 17/352,250, filed on Jun. 18, 2021, granted, now 11,930,621.
Claims priority of provisional application 63/041,208, filed on Jun. 19, 2020.
Prior Publication US 2023/0292466 A1, Sep. 14, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20336 (2013.01) [H05K 7/2039 (2013.01); H05K 7/20309 (2013.01); H05K 7/20318 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A thermal ground plane comprising:
a first casing comprising:
a first bonding region extending around a periphery of the first casing;
a first non-folding region overlapping portions of the first bonding region;
a first folding region overlapping portions of the first bonding region and portions of the first non-folding region; and
a second casing comprising:
a second bonding region extending around a periphery of the second casing;
a second non-folding overlapping portions of the second bonding region;
a second folding region overlapping portions of the second bonding region and portions of the second non-folding region; and
wherein the first casing and the second casing are sealed together at the first bonding region and the second bonding region, and the first folding region and the second folding region are substantially aligned; and
a vapor structure disposed on at least a portion of the interior surface of the first casing within the first non-folding region; and
a liquid structure comprising a mesh and a plurality of arteries, the plurality of arteries are formed within the mesh extending substantially parallel with a length of the thermal ground plane and extending substantially through the second folding region;
wherein at least a subset of the plurality of arteries has a length that is longer than the length of the first folding region measured parallel with the length of the thermal ground plane.