US 11,844,194 B2
Power electronic cooling system and method
Zeljko Jankovic, Mequon, WI (US); Garron Koch Morris, Whitefish Bay, WI (US); Timothy James Strandt, New Berlin, WI (US); Junsheng Mu, Shanghai (CN); Yiqing Lin, Shanghai (CN); Jianfeng Wu, Shanghai (CN); Tongxi Wu, Shanghai (CN); and Haochen Zhu, Shanghai (CN)
Assigned to Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed by Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed on Jun. 22, 2021, as Appl. No. 17/354,679.
Prior Publication US 2022/0408598 A1, Dec. 22, 2022
Int. Cl. H05K 7/20 (2006.01); F24F 11/65 (2018.01); F24F 110/20 (2018.01)
CPC H05K 7/20281 (2013.01) [F24F 11/65 (2018.01); H05K 7/20945 (2013.01); F24F 2110/20 (2018.01)] 17 Claims
OG exemplary drawing
 
1. A system, comprising:
power electronic circuitry that, in operation, converts input power from a source to output power adapted for a load, the power electronic circuitry including a heat extraction component that draws heat from the power electronic circuitry by circulating a liquid coolant flow therethrough;
an enclosure in which the power electronic circuitry is disposed;
a fan that, in operation, causes a flow of ambient air from outside the enclosure to be circulated inside the enclosure to draw heat from the heat extraction component;
sensors for detecting parameters of the air flow inside the enclosure; and
a thermal manager that, in operation, processes signals from the sensors and determines temperature and relative humidity of at least one region of interest in the enclosure and produces an output signal representative of at least one of the determined relative humidity or a parameter setting of a liquid chilling system that provides the liquid coolant flow;
wherein the sensors comprise at least a temperature sensor for detecting a signal representative of temperature of the air flow in the region of interest in the enclosure, and a humidity sensor for detecting a signal representative of humidity of the air flow in the region of interest in the enclosure; and
wherein the thermal manager determines the relative humidity of the air flow on or near the heat extraction component.