| CPC H05K 7/20836 (2013.01) [H05K 7/20272 (2013.01); H05K 7/20781 (2013.01)] | 10 Claims |
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1. A smart flow rate control system for cooling server racks, comprising:
a cabinet having a receiving space;
a liquid cooling rear door comprising a door frame and a rear door cooling pipeline, the door frame being disposed on a side of the cabinet, the rear door cooling pipeline being mounted in place inside the door frame and having a rear door inlet and a rear door outlet, and the door cooling pipeline being configured to absorb the heat energy of the air in the receiving space for heat exchange;
a liquid cooling pipeline comprising an admitting three-way valve, an admitting branch pipe, a discharging three-way valve and a discharging branch pipe, the admitting three-way valve receiving a liquid from an outside and delivering the liquid to the admitting branch pipe and the rear door inlet, and the discharging three-way valve receiving the liquid from the rear door outlet and the liquid from the discharging branch pipe, allowing the liquids to be joined before being discharged to the outside;
a temperature sensing device; and
a flow rate control device disposed at the liquid cooling pipeline, being in signal connection with the temperature sensing device, and determining a flow ratio of the rear door cooling pipeline according to a temperature sensed by the temperature sensing device,
wherein when the temperature sensing device detects that the air temperature in the receiving space is higher than a threshold, the flow rate control device increases the flow ratio of the rear door cooling pipeline to balance the heat dissipation performance of two beat dissipation paths in the receiving space through the liquid cooling pipeline and through the air.
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