Method and device for cooling in closed spaces
AssigneeTelefonaktiebolaget LM Ericsson
InventorsLennart St.ang.hl, Anders Karstrom
Life of this patent
Estimating the term…
Abstract
A system for cooling heat generating components in a closed space, for example, telecommunications equipment in rack cabinets in an enclosure includes a cooling unit operating with combined displacing air distribution and gravity air flow. Cooled air is distributed at low speed at a bottom of the closed space to contact the components from below. The cooled air displaces warmer air around and in the components for cooling. The warmer air moves upward in the space and is taken into the cooling unit at an upper intake opening. Air flow in the space is at a speed sufficiently low to avoid turbulence and mixing of the cooled and warmed air flows.
Claims8
A method for cooling heat-generating components of telecommunications equipment located in a closed space, comprising the steps of:
- placing in the closed space a cooling unit;
- generating a displacing flow of cool air at a low speed along a floor of the closed space to distribute the flow of cool air for contact with said components to be cooled,
- drawing by suction warmer air from the ceiling of the closed space,
- wherein as the warmer air is drawn from the ceiling the cooling air displaces warmer air from beneath the components in an upward flow for heat transfer contact with the components, and cooling air heated by the components exits the components from above.
A unit for cooling heat-generating components of telecommunications equipment located in a closed space, comprising:
- a cooling unit installed in a closed space having means to deliver a displacing cold air flow at low speed along a floor of the space so that the cold air is distributed to components in the space;
- the cooling unit including means to drawn by suction air heated by the cooled heat-generating devices from along a ceiling of the space at a low speed, wherein cold air displaces the warmer air and enters the components from beneath as heated air exits the components from above.
Dependencies are inferred from the claim text.