US 12,336,144 B2
Immersed liquid-cooling server and waste heat recovery system thereof
Mingyue Zhao, Jiangsu (CN); Siqiang Xu, Jiangsu (CN); Wei Gong, Jiangsu (CN); and Yan Li, Jiangsu (CN)
Assigned to SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
Appl. No. 18/880,250
Filed by SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
PCT Filed Sep. 27, 2023, PCT No. PCT/CN2023/122271
§ 371(c)(1), (2) Date Dec. 30, 2024,
PCT Pub. No. WO2024/148872, PCT Pub. Date Jul. 18, 2024.
Claims priority of application No. 202310025096.6 (CN), filed on Jan. 9, 2023.
Prior Publication US 2025/0169029 A1, May 22, 2025
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/203 (2013.01) [H05K 7/20663 (2013.01); H05K 7/20781 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A waste heat recovery system, comprising an immersion box body, an evaporation box body, a heat exchanger, a circulating pipe and a first driving assembly;
wherein the immersion box body is filled with a single-phase coolant for immersed mounting of server nodes;
the evaporation box body is filled with a two-phase coolant capable of generating gas-liquid phase change, and the evaporation box body is provided with an extending portion; and
the extending portion extends into the immersion box body and is in contact with the single-phase coolant;
a water inlet of the heat exchanger and a water outlet of the heat exchanger are respectively communicated to different positions of the immersion box body to dissipate heat from the single-phase coolant;
a pipe orifice of one end of the circulating pipe is communicated to a bottom of the evaporation box body, and a pipe orifice of the other end of the circulating pipe is communicated to a top of the evaporation box body; and
the first driving assembly comprises a first driving impeller mounted in the circulating pipe, a first driven impeller mounted in a pipeline between the water inlet of the heat exchanger and the immersion box body, and a first transmission component connected between the first driving impeller and the first driven impeller.