| 摘要 |
<p>In a power converter for a vehicle where a series circuit of switching semiconductor elements (1, 2) is connected between the positive and negative terminals of a DC power supply, an AC output terminal is led out from the series joint of the series circuit, all switching semiconductor elements are arranged on the same plane of a cooler (11) with the series circuit used as one phase of the power converter, the cooling section of the cooler is constituted of a plurality of fins, and the switching semiconductor elements are cooled by refrigerant flowing between fins, the switching semiconductor elements are arranged on the cooler such that the longitudinal direction thereof become perpendicular to the flowing direction of refrigerant. A small power converter having a high cooling efficiency can be obtained at a low cost.</p> |
