COOLER OF POWER CONVERTER FOR RAILWAY VEHICLE

摘要

PURPOSE: A cooler of an electric power converting apparatus for a railway vehicle is provided to accurately detect the temperature of a semiconductor element which is the most prone to be overheated without increasing the number of a thermistor. CONSTITUTION: A heat transfer pipe of a heat dissipating pin (101) is arranged to improve a cooling performance of a semiconductor element arrange in an upper part among semiconductor elements (103) in every row. Multiple temperature detection elements (102) detect the temperature of the semiconductor element in a lower part regarding an upper wind area and a lower wind area and the temperature of the semiconductor element of the upper part regarding the central part. [Reference numerals] (AA) Cooling wind