| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a railroad vehicle control unit which is capable of being improved in cooling efficiency and reduced in size. <P>SOLUTION: The control unit is equipped with a cooling air flow path 1 which houses a plurality of semiconductor cooling condensers 2 cooling semiconductor elements that constitute the railroad vehicle control unit arranged under the floor of the railroad vehicle; and partitioning plates 5 and 6 which partition the cooling air flow path 1 so as not to enable the exhaust air flow 10a of the preceding semiconductor cooling condenser 2a that is arranged in series in the direction of a cooling air flow in the cooling air flow path 1 to flow through the following semiconductor cooling condenser 2b. <P>COPYRIGHT: (C)2007,JPO&INPIT |
