| 摘要 |
<p>Power electronics device, such as a frequency converter, which comprises liquid-cooled power units (REC 5 , REC 6 , AFE 5 , AFE 6 , INU 4 , INU 5 , DC/DC, DC/AC) and also a substrate arrangement, in which power units there is at least one power semiconductor component, e.g. an IGBT or a diode, and which power units are connected to at least one power circuit (11, 12) connecting them. The power units are mechanically separate and they are disposed on at least one substrate (1) provided with liquid cooling ducts (4, 5), which substrate is common to more than one power unit, which substrate comprises liquid cooling interfaces (7, 8) and power circuit interfaces (9, 10) for each power unit that can be connected to it, and which substrate comprises one liquid cooling interface (2, 3) and one power circuit interface (DC+, DC-) to outside the substrate.</p> |
