发明名称 ELECTRIC POWER CONVERSION APPARATUS AND SHOVEL EQUIPPED WITH THE SAME
摘要 PROBLEM TO BE SOLVED: To provide an electric power conversion apparatus which reduces influences of noise occurring from an inverter circuit.SOLUTION: A switching element for performing on-off control of a current is housed in a housing. A vent hole is provided on a wall surface of the housing. A vent filter is attached to the vent hole. The vent filter radiates a gas in the housing to the exterior. A noise blocking member is disposed so as to close the vent hole. The noise blocking member blocks electromagnetic noise and allows the circulation of the gas.
申请公布号 JP2014017984(A) 申请公布日期 2014.01.30
申请号 JP20120154182 申请日期 2012.07.10
申请人 SUMITOMO HEAVY IND LTD 发明人 YOSHIDA SOTETSU
分类号 H02M7/48;H02M3/00 主分类号 H02M7/48
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