US Patent No. 10,893,633

METHOD OF COOLING AN ELECTRONICS CABINET


Patent No. 10,893,633
Issue Date January 12, 2021
Title Method Of Cooling An Electronics Cabinet
Inventorship David Samuel Wilks, Bradford (GB)
Nino Veselinov Nenchev, Huddersfield (GB)
Assignee MODINE MANUFACTURING COMPANY, Racine, WI (US)

Claim of US Patent No. 10,893,633

1. A method of cooling an electronics cabinet, comprising:inducing a flow of cooling air to enter into an electronics cabinet at a first temperature;
passing the flow of cooling air over a plurality of electronic modules arranged within the electronics cabinet to convectively transfer heat to the flow of cooling air from the plurality of electronic modules at a first heat transfer rate;
directing the flow of cooling air through a door heat exchanger arranged at an end of the electronics cabinet to exhaust the flow of cooling air from the electronics cabinet at a second temperature;
receiving a first coolant flow into the electronics cabinet;
directing the first coolant flow through the door heat exchanger;
transferring heat from the flow of cooling air to the first coolant flow at a second heat transfer rate as the flow of cooling air and the first coolant flow both pass through the door heat exchanger;
directing the first coolant flow through a coolant-to-coolant heat exchanger arranged within the electronics cabinet;
circulating a second coolant flow through a coolant loop arranged within the electronics cabinet, the coolant-to-coolant heat exchanger being located along said coolant loop;
passing the second coolant flow through a plurality of cold plates joined to at least some of the plurality of electronic modules to transfer heat therefrom to the second coolant flow at a third heat transfer rate;
transferring heat from the second coolant flow to the first coolant flow at a fourth heat transfer rate as the first and second coolant flows both pass through the coolant-to-coolant heat exchangers;
removing the first coolant flow from the electronics cabinet; and
rejecting heat from the first coolant flow at a location remote from the electronics cabinet.