Patent ID: 9148067
Filing Date: 2015-09-29
Classification: H02M,H05K

Abstract:
1. Switched power converter comprising a base plate on which plurality of elongated heat sinks are arranged parallel to each other and which base plate further has an end face at a respective end of the base plate extending parallel to the elongated heat sinks, the power converter further comprising power transistors arranged on both sides of each heat sink, the converter further comprising: a plurality of spring elements, each being arranged to press against a first power transistor arranged on one side of the respective heat sink and a second power transistor arranged on the oppositely facing side of the adjacent heat sink when being arranged between two heat sinks, and being arranged to press against a base plate end face and a third power transistor arranged on the oppositely facing side of the adjacent heat sink when arranged between a base plate end face and a heat sink, said spring elements thereby applying a force to the power transistors for pressing the transistors against the heat sinks; the converter further comprising: a printed circuit board on which the power transistors are mounted, which printed circuit board is arranged on top of the heat sinks with the transistors facing the base plate, the converter further comprising a plurality of housings, each arranged to house the respective spring element, said housings being arranged to fit between the first and the second power transistors in case the housing is to be inserted between two heat sinks and being arranged to fit between the third power transistor and one of the base plate end faces in case the housing is to be inserted between a heat sink and an end face.