Reverse-return parallel loop thermal management system for an electronic device
摘要
說明書
Moreover, the mechanical vales include a thermal actuator and regulation valve mechanics, as stated above. The actuator can generate mechanical displacement after sensing the temperature variations of heat sources. The regulation valve mechanism will be driven by the thermal actuator to regulate the flow by increasing or decreasing the opening of the valve. The thermal actuator can be based on the principles of thermal-volume expansion, such as a wax thermal actuator (the volume of wax may change with the temperature variation), as noted above. The thermal actuator may also be a bulb-type, diaphragm-type, or bimetal-type thermal actuator (the volume of charging fluid could change with the temperature variation). The thermal actuator could also be a servomotor-type (i.e. step motor) in addition to temperature sensors (i.e., PTC). Temperature sensors will generate the electrical signals with the temperature variation, which will be used to control/drive the movement of the servomotor. The regulation valve mechanism driven by the thermal actuator is similar to the traditional flow regulation valve, which normally includes a valve needle and valve body. The flow volume could be regulated by varying the opening between valve needle and valve body.
