| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent dewing occurring on fins for cooling a switching device fitted inside an inverter device. <P>SOLUTION: The amount of coolant supplied to the cooling fins is made variable by a three-way valve from the air temperature of an output of an intake cooler and the liquid temperature of the output of the cooling fins for cooling the switching devices, by which a temperature difference between the cooling fins and the intake cooler is controlled so as to be fitted to a predetermined value, thus preventing, with high precision, generation of dewing occurring on the fins for cooling the switching devices inside the inverter device. <P>COPYRIGHT: (C)2007,JPO&INPIT |
