PRA ELECTRONIC PRA APPARATUS AND COOLING METHOD THEREOF

摘要

The present invention relates to an electronic PRA apparatus and its cooling system. The electronic PRA apparatus according to the present invention includes a main relay 20, a main relay 30, a resistor 40, and an initial charging relay 50, which are connected to a PCB substrate (not shown) according to the amount of heat generated in the PRA. 10). According to the present invention, it is possible to replace a conventional gas rechargeable mechanical relay (-) stage main relay, (+) stage main relay and initial charge relay with a small power semiconductor (IGBT) to reduce volume and weight, , The noise can be fundamentally blocked. In addition, the heat generated from the power semiconductor (IGBT) can be effectively discharged through the cooling system including the heat pipe, the thermoelectric module, etc., thereby ensuring the durability of the electronic PRA apparatus.