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
13.07.2016
Patent
Elektronische Ressource
Englisch
Power converter, electric rolling stock and method for controlling sequence test
Europäisches Patentamt | 2017
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