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 |
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.
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