20-07-2011 дата публикации
Номер: CN0102126657A
Принадлежит:
The present invention provides a power converter with an elevator control device, which has the following advantages: improved cooling efficiency, high suitability for device miniaturization, and no time increase for mounting and maintenance. The power converter of the invention is constructed to possess a radiating part (203) for performing compulsory air cooling for semiconductor modules (15,17). Air is sucked into from an air suction inlet (210) at a front surface of the device, and the air is discharged from air discharging parts (231,232) at an upper surface of the device. An approximately central part in a depth direction of the upper surface is provided with a hoisting component which is used in hoisting the whole device. A part which is closer to a back surface side than the hoisting component (9) of the upper surface is provided with a back side air outlet (231) which has larger meshes and a larger total open area. A part which is closer to the front surface than the hoisting component ...
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