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    • 15. 发明申请
    • Adaptive cooling method for computer rack enclosure
    • 计算机机架式自适应冷却方式
    • US20070097636A1
    • 2007-05-03
    • US11499916
    • 2006-08-04
    • Douglas JohnsonStephen Boyd
    • Douglas JohnsonStephen Boyd
    • H05K7/20
    • H05K7/20209G06F1/206H05K7/20145H05K7/20572H05K7/207H05K7/20745H05K7/20836
    • 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.
    • 一种用于冷却设备机架的技术,其包含多个单独的设备,例如计算机,其各自具有自己的内部冷却风扇。 空气通道(“分流管”)被放置在机架内部的隔室与机架外部的环境空气之间或机架内的隔间之间。 空气通道内的传感器检测通道内空气的运动,从而间接地测量压差的存在。 优选的传感器实施例使用温度传感器,并且利用计算机机架内部的空气温度和计算机机架(或内部计算机机架隔间之间)的差异来确定空气是否通过空气通道移动,以及哪个 方向空气正在移动。 响应于测量,控制系统被配置为将集气室驱动到轻微的真空,然后缓慢地减小排气风扇,直到压力室被轻微加压,此时风扇加速并再次产生轻微的真空。 这样,随着计算机利用率的改变,机架式机箱将不断适应冷却要求的任何变化。