US 12,432,891 B2
Reversible cooling apparatus for systems with variable heat distribution
Lixin Tang, Irvine, CA (US); and Michael Kelleghan, Huntington Beach, CA (US)
Assigned to L3Harris Technologies, Inc., Melbourne, FL (US)
Filed by L3Harris Technologies, Inc., Melbourne, FL (US)
Filed on Sep. 27, 2023, as Appl. No. 18/475,642.
Prior Publication US 2025/0107052 A1, Mar. 27, 2025
Int. Cl. H05K 7/20 (2006.01); H02M 3/158 (2006.01)
CPC H05K 7/20927 (2013.01) [H02M 3/1582 (2013.01); H05K 7/20945 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a first circuit and a second circuit of a circuit configured to operate in a first mode and a second mode in which the first circuit dissipates more power than the second circuit and the second circuit dissipates more power than the first circuit, respectively;
a coolant conduit along which the first circuit and the second circuit are thermally coupled at spaced-apart locations; and
a conduit switch network configured to deliver cold coolant to the coolant conduit to cool the circuit, depending on which mode is active, such that the cold coolant flows through the coolant conduit and initially encounters whichever of the first circuit and the second circuit dissipates more power, then encounters whichever of the first circuit and the second circuit is not dissipating more power.