COOLING SYSTEM FOR MICROWAVE DEVICES Russian patent published in 2003 - IPC

FIELD: thermal engineering; cooling devices, including microwave ones, heated in operation. SUBSTANCE: system has closed liquid- coolant circuit incorporating coolant tank, set of inlet and outlet pipelines, air-to-air heat exchanger, and electronic-device heat sink. Coolant tank is made in the form of tube accommodating temperature compensator on one of its ends made in the form of bellows whose interior communicates with space surrounding the tank and the latter communicates from this end with aid of outlet pipeline with electronic-device heat sink through air-to-air heat exchanger. Coolant pump disposed on opposite end in tank communicates on suction end with tank and on delivery end it is connected to electronic-device heat sink through inlet pipeline. Air- to-air heat exchanger is provided with fan and is made in the form of spiral pipeline with ribbed outer surface, the latter area being minimum 2000 sq. cm. Inner space volume of tank is at least twice as large as that of remaining parts of coolant circuit; volume of bellows is 10 to 30% of that of tank; specific heat of coolant is 0.8 cal/(g C). EFFECT: enhanced cooling efficiency; reduced mass and size of system. 1 cl, 1 dwg