COOLING APPARATUS FOR SEMICONDUCTOR POWER DEVICES Russian patent published in 2003 - IPC

FIELD: static electrical-energy converters. SUBSTANCE: apparatus has externally ribbed molded section with inner vertical condensation duct and steam passage. Built-in evaporator ribbed with straight permanent-section rings made of high-heat-conductance material such as copper is arranged in bottom part of vertical steam passage (in boiling zone). Butt-end surfaces of evaporator base with one or two semiconductor power devices attached thereto are disposed beyond steam passage. Condensation ducts and steam passage are joined on top through steam header and at bottom, through condensate header. Bottom part of steam passage (boiling zone) and some portion of bottom part of condensation ducts are filled with intermediate liquid coolant such as perfluorotriethylamine. EFFECT: enhanced efficiency, facilitated manufacture, reduced material input. 5 cl, 2 dwg