Reverse-return parallel loop thermal management system for an electronic device
摘要
說明書
In the present embodiment, four CPUs are being cooled by reverse-return parallel loop system 400. However, as will be appreciated by one skilled in the art, a lesser or greater number of CPUs may be cooled by reverse-return parallel lip system, depending on a specific server configuration.
Flow regulation valves 418-424 may be driven by a thermal actuators integrated on microchannel heat sinks 402-408 for flow control and control of CPU temperatures. Flow regulation valves 418-424 may be, for example, without limitation, mechanical valves including a thermal actuator and regulation valve mechanism. The thermal actuator may be, for example, without limitation, a wax thermal actuator, a bulb thermal actuator, a diaphragm thermal actuator, a bimetal thermal actuator, a hybrid version of the aforementioned thermal actuators, etc. The regulation valve mechanism may be driven by the thermal actuator to maintain a constant CPU temperature. Because the flow paths through microchannel heat sinks 402-408 are effectively the same length, the required effective pressure drop on flow regulation valves 418-424 may be small, which may result in low energy loss. Similarly, the head pressure of liquid pump 336 may also be low.
