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Abstract
The invention relates to a computer rack, frame or system having a direct current power supply positioned at the upper portion of the rack. In one variation, the DC power supply is placed in the highest shelf in the computer rack. In another variation, the DC power supply is placed on top of the computer rack. In yet another variation, a dual column computer rack with a back-to-back configuration is implemented with DC power supplies placed in a top shelf of the one of the computer columns. The DC power supply may comprise of one or more direct current power supply modules configured to provide fail over protection. In another aspect of the invention, the power supply modules are placed in a separate rack and provide direct current to support computers in one or more computer racks.
Abstract
A technique for cooling equipment racks that contain multiple individual devices, such as computers, that each have their own internal cooling fans. An air passage ("shunt tube") is placed between a compartment inside the rack, and the ambient air outside the rack, or between compartments inside the rack. Sensors inside the air passage detect movement of the air inside the passage, and thus indirectly measure the presence of a differential pressure. The preferred sensor embodiment uses temperature sensors, and takes advantage of the differences of the air temperatures inside the computer rack, and outside the computer rack (or between internal computer rack compartments) to determine if the air is moving through the air passage, and which direction the air is moving. In response to the measurements, a control system is configured to drive the plenum to a slight vacuum, and then slowly reduce an exhaust fan until the plenum is slightly pressurized, at which point the fan speeds up and again creates a slight vacuum. This allows the rack enclosure to continuously adapt to any changes in cooling requirements, as the computer utilization changes.
Abstract
A layout for packaging a computer rack comprises a transport pallet (2) and a computer rack; the computer rack being associable with casters extending vertically by a first distance relatively to a lower face of the rack. The computer rack is made integral with the pallet by two anchoring means distributed on the underside of the rack on either side of a vertical median plane (P1); the pallet includes two side modules and an intermediate supporting means separable from the remainder of the pallet and allowing the side modules to be connected. The side modules are removably attached to the anchoring means, so as to ensure that the computer rack is maintained in a horizontal position, and that the pallet is spaced away from the underside of the rack by a second distance (H2) smaller than said first distance. |
