US 12,389,567 B2
Data center rack assembly and cooling fluid control method with leak alert
Ali Chehade, Moncheaux (FR); Mohamad Hnayno, Roubaix (FR); Hadrien Bauduin, Villeneuve d'Ascq (FR); and Henryk Klaba, Roubaix (FR)
Assigned to OVH, Roubaix (FR)
Filed by OVH, Roubaix (FR)
Filed on Aug. 17, 2022, as Appl. No. 17/889,972.
Claims priority of application No. 21306176 (EP), filed on Aug. 30, 2021.
Prior Publication US 2023/0062986 A1, Mar. 2, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20254 (2013.01) [H05K 7/20272 (2013.01); H05K 7/20836 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A rack assembly for a data center, comprising:
a rack frame defining at least one housing section and configured to house electronic equipment including at least one heat-generating component;
a heat exchanger connected to the rack frame, the heat exchanger defining a first internal fluid conduit;
at least one liquid cooling block connected to the at least one heat-generating component, each of the at least one liquid cooling block defining a second internal fluid conduit, the second internal fluid conduit being in thermal connection with the first internal fluid conduit of the heat exchanger;
a cooling loop for circulating cooling fluid therein, the cooling loop comprising the first and second internal fluid conduits, the cooling loop being configured to transfer heat from the second internal fluid conduit to the first internal fluid conduit; and
a fluid compensation system comprising:
a reservoir fluidly connected to the cooling loop, the reservoir being configured to contain cooling fluid therein;
an actuator configured to force cooling fluid from the reservoir to the cooling loop to compensate for loss of cooling fluid in the cooling loop;
a position sensor configured to sense a position of the actuator; and
a controller configured to receive the position of the actuator from the position sensor and transmit, based on the position of the actuator, an alert signal indicating a leak in the cooling loop.