摘要:
Cooled electronic circuitry may include multiple and substantially parallel circuitry surfaces, each containing power amplifier circuitry, having a side edge, and includes material between at least a portion of the base plate and the side edge that provides a level of thermal conductivity of at least 167 W/m-k; and a cooling plate having a flat surface attached to each of the side edges of the circuitry surfaces in a thermally-conductive manner.
摘要:
A switching combiner unit (SCU) may combine coherent RF or microwave outputs from multiple power amplifier units (PAUs). Each SCU may be able to be switched between an on-line mode (on-line PAU), during which the PAU amplifies a coherent instance of the same RF or microwave input signal and delivers that amplified input signal to an output, and a standby or off-line mode (standby/off-line PAU), during which the PAU does not amplify an instance of the same RF or microwave input signal or deliver an amplified input signal to the output. The SCU may include an input port that connects to each of the PAU outputs; a control signal input that receives one or more control signals that indicate whether each PAU is in the on-line or standby/off-line mode; signal combining circuitry that coherently sums the outputs from all of the on-line PAUs, while simultaneously isolating the standby/off-line PAUs from the output of the SCU and the outputs of the on-line PAUs; and an SCU output port that delivers the coherently summed outputs from all of the on-line PAUs.
摘要:
A power divider may coherently divide an RF or microwave input signal into multiple instances of that signal. The power divider may include: an input port that receives the input signal; multiple output ports; and passive signal splitting circuitry that causes a different instance of the input signal to be delivered to each of the output ports all substantially in phase with one another and with substantially equal amplitude, but isolates any signal that is reflected back to one of the output ports from a device to which the output port is connected from any of the other output ports.
摘要:
Various apparatuses, methods, and systems are provided for cooling electronic components. For example, an apparatus includes an electronics enclosure having multiple ribs configured to separate electronic components. The apparatus also includes at least one fluid transport structure encased within the electronics enclosure. Each fluid transport structure includes multiple pipes and multiple flow channels. The flow channels are located within the ribs of the electronics enclosure, and the pipes are configured to transport cooling fluid to and from the flow channels. The fluid transport structure(s) and the electronics enclosure are formed from different materials. The at least one fluid transport structure can be resistant to corrosion caused by the cooling fluid, and the electronics enclosure can be susceptible to corrosion caused by the cooling fluid. As an example, the at least one fluid transport structure could consist essentially of nickel, and the electronics enclosure could consist essentially of aluminum.
摘要:
Dehumidifying cooling apparatus and method are provided for an electronics rack. The apparatus includes an air-to-liquid heat exchanger disposed at an air inlet or outlet side of the rack and positioned for air passing through the electronics rack to pass across the heat exchanger. The heat exchanger is in fluid communication with a coolant loop for passing coolant therethrough at a temperature below a dew point temperature of the air passing across the heat exchanger so that air passing across the heat exchanger is dehumidified and cooled. A condensate collector, disposed below the heat exchanger, collects liquid condensate from the dehumidifying of air passing through the electronics rack, wherein the heat exchanger includes a plurality of sloped surfaces configured to facilitate drainage of liquid condensate from the heat exchanger to the condensate collector.
摘要:
A thermal management system for a electronics cabinets having an electronics heat source therein. The thermal management system includes a first passive thermal device having an evaporator portion and a condenser portion. The thermal management system can also include a heat sink in contact with air inside the cabinet and in thermal contact with the evaporator portion of the first passive thermal device, wherein the heat sink is contained within the sealed cabinet. The condenser portion of the first passive thermal device can be in contact with a liquid to liquid heat exchanger.
摘要:
An aircraft signal computer system includes a plurality of modular signal computer units and a liquid cooling device for cooling the modular signal computer units. The liquid cooling device includes a coolant line, which is connectable to a central liquid cooling system of an aircraft in order to supply a liquid coolant medium at a desired low temperature to the liquid cooling device. The coolant line of the liquid cooling device is in thermal surface contact with the modular signal computer units in order to dissipate heat from the modular signal computer units. A heat-emitting component of the modular signal computer units may be in thermal contact with a coolant bath or an internal heat conductor for removing heat energy.
摘要:
Disclosed is an embodiment of a rack system including a cooled universal hardware platform having a frame, a module insertion area on a first side of the rack system and a universal backplane mounting area on a second side of the rack system opposite to the first side, a power bus, a plurality of cooled partitions, a plurality of module bays, two or more service unit backplanes and a coolant source. The power bus may be configured to provide power to the universal backplane mounting area and the plurality of cooled partitions. The rack system may also include a plurality of service units that may be configured to have different functions within the rack system.
摘要:
Disclosed is an embodiment of a rack system including a cooled universal hardware platform having a frame, a module insertion area on a first side of the rack system and a universal backplane mounting area on a second side of the rack system opposite to the first side, a power bus, a plurality of cooled partitions, a plurality of module bays, two or more service unit backplanes and a coolant source. The power bus may be configured to provide power to the universal backplane mounting area and the plurality of cooled partitions. The rack system may also include a plurality of service units that may be configured to have different functions within the rack system.
摘要:
The invention relates to an improved aircraft electronics cooling system for an aircraft having a liquid cooling system (2), the aircraft electronics cooling system providing a thermal coupling between an electronic device (40a, 40b, 40c, 40d, 42, 44) to be cooled and the liquid cooling system (2) of the aircraft. A coolant delivered by the liquid cooling system (2) may flow through a board of the electronic device (40a, 40b, 40c, 40d), through a heat sink on which the electronic device (42) is arranged and/or through a housing in which the electronic device (44) is arranged. The coolant may be permanently in the liquid state in a cooling circuit. The coolant may vaporize at least partially while cooling the electronic device.