Liquid-cooled convertor module having circuitry components for power semiconductors which can be turned off

摘要

A liquid-cooled convertor module having at least one power semiconductor which can be turned off and having circuitry which consists of a plurality of components - such as a capacitor, inductor and diode - for the power semiconductor which can be turned off are proposed, in the case of which all the major components of the circuitry for a power semiconductor which can be turned off are arranged on a single insulating mounting rack (1, 21 to 23). The insulating mounting rack is provided with an integrated electrical power current path busbar system (8) for connecting the circuitry components and with electrical connections (2, 3, 5, 9, 13, 15, 18, 19) for making contact with the circuitry components and circuitry connections and has means (4, 6, 10, 12, 14, 17, 26, 27) for mechanical fastening of the circuitry components. At least one liquid cooler for cooling heat-producing circuitry components is integrated in the insulating mounting rack, and the insulating mounting rack can be produced as a cast or stamped part for high-quality insulating material such as epoxy resin or polyester resin. In the case of a multiphase converter module, one insulating mounting rack is provided per phase, it being possible to arrange the individual insulating mounting racks in a row and to connect them to form an insulating mounting rack assembly (25). <IMAGE>