US 12,256,519 B2
Immersion cooling system and immersion cooling method
Wei-Chih Lin, Taoyuan (TW); Ren-Chun Chang, Taoyuan (TW); Yan-Hui Jian, Taoyuan (TW); Chia-Hsing Chen, Taoyuan (TW); Li-Hsiu Chen, Taoyuan (TW); and Wen-Yin Tsai, Taoyuan (TW)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed on May 30, 2022, as Appl. No. 17/804,567.
Claims priority of provisional application 63/223,984, filed on Jul. 21, 2021.
Claims priority of application No. 202210147926.8 (CN), filed on Feb. 17, 2022.
Prior Publication US 2023/0027917 A1, Jan. 26, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/203 (2013.01) [H05K 7/20318 (2013.01); H05K 7/20336 (2013.01); H05K 7/20381 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An immersion cooling system, comprising:
a cooling tank configured to accommodate a liquid coolant and an electronic device, the electronic device being immersed in the liquid coolant;
a housing covering a side of the cooling tank and thereby forming an enclosure;
a first valve having two ports, wherein one of the two ports of the first valve communicates with the enclosure and the other of the two ports of the first valve communicates with a part of the cooling tank above the liquid coolant, and wherein the first valve is configured to open in response to a gas pressure inside the cooling tank exceeding a first upper limit; and
a safety valve having two ports, wherein one of the two ports of the safety valve directly communicates with the enclosure and the other of the two ports of the safety valve directly communicates with the part of the cooling tank above the liquid coolant, wherein the safety valve is configured to open automatically in response to the gas pressure inside the cooling tank exceeding a second upper limit to enable flow of gas from the cooling tank to the enclosure without losing gas to atmosphere, and the second upper limit is higher than the first upper limit.