US 11,758,694 B2
Switch cabinet arrangement with at least one IT rack or switch cabinet housing and with at least one cooling unit, and a corresponding method
Frank Himmelhuber, Kümmersbruck (DE); Stephan Helmut Matthies, Siegen (DE); and Andreas Meyer, Fronhausen (DE)
Assigned to RITTAL GMBH & CO. KG, Herborn (DE)
Appl. No. 17/762,460
Filed by RITTAL GMBH & CO. KG, Herborn (DE)
PCT Filed Sep. 23, 2020, PCT No. PCT/DE2020/100821
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/058062, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 10 2019 125 512.0 (DE), filed on Sep. 23, 2019; application No. 10 2019 125 534.1 (DE), filed on Sep. 23, 2019; application No. 10 2020 105 359.2 (DE), filed on Feb. 28, 2020; and application No. PCT/DE2020/100704 (WO), filed on Aug. 13, 2020.
Prior Publication US 2022/0346283 A1, Oct. 27, 2022
Int. Cl. H05K 7/20 (2006.01); H05K 7/14 (2006.01); H04Q 1/02 (2006.01)
CPC H05K 7/20781 (2013.01) [H05K 7/1488 (2013.01); H05K 7/20736 (2013.01); H04Q 1/025 (2013.01); H04Q 1/035 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A switch cabinet arrangement having at least one IT rack or switch cabinet housing and having at least one cooling device which has a first air-liquid heat exchanger for cooling components accommodated in the IT rack or switch cabinet housing with cooled air, wherein the first air-liquid heat exchanger comprises a first flow for cooled liquid and a first return for heated liquid, characterized in that the cooling device comprises a liquid-liquid heat exchanger of a liquid cooling of the components, to the second flow of which the first return of the first air-liquid heat exchanger is connected, wherein a first of the two liquids passed through the liquid-liquid heat exchanger has a boiling point under standard conditions that is below the boiling point of a second of the two liquids passed through the liquid-liquid heat exchanger, and wherein the second liquid is the liquid passed through the first air-liquid heat exchanger.