A power converter 100 for a rolling stock 200 comprising a blower 120 which draws in cooling air from an air intake port on a side which abuts a side surface of the rolling stock 200, a dust proof filter 130 at the air intake port and a noise insulator 140 with an opening and a noise insulating portion (143 fig 3) located between blower 120 and filter 130. The power converter 100 cools a semiconductor device constituting a power conversion circuit by using the cooling air. A noise insulating portion (143 fig 3) may be at a portion overlapping a suction port 121 of blower 120. Filter 130 or noise insulator 140 may be formed in a protruding shape. Blower 120 may include a suction mechanism that sucks air by rotating impellers. The air intake port may be disposed in an underfloor area of the rolling stock 200. A plate shaped cowl (300 fig 8) may be disposed on a side surface of power converter 100 via a space (310 fig 8) where cooling air flows. An outlet port (190 fig 9) of power converter 100 may be on a bottom surface side of the rolling stock 200.
Power converter and rolling stock including the same
2016-07-13
Patent
Elektronische Ressource
Englisch
Power converter, electric rolling stock and method for controlling sequence test
Europäisches Patentamt | 2017
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