Scalable and modular solution for a design of a power electronics unit for vehicle applications

摘要

Power electronics unit (100), comprising:a housing (160), which has a base and walls, which is substantially perpendicular from the base,a in the housing (160) attached to the power module (110);a in the housing (160) which is fixed and with the power module (110) coupled control (150);a with the power module (110) and coupled in the housing (160) which is fastened to the capacitor arrangement (140);a in the housing (160) which is fastened to the ac - bus rail (120);a dc - bus rail (130), which the capacitor arrangement (140) with the power module (110), and in the housing (160) is fastened;a on an underside of the power module (110) which is fastened to the heat sink (114),the heat sink (114) on the housing (160) is attached; andthe heat sink (114) a first side with a substantially planar surface and having a second side with pins, and wherein the housing (160) defines an opening in such a way, so that the first side of the heat sink (114) covers the opening and is in contact with the power module (110), and, the pins away from the housing (160) extend,the power module (110) and the capacitor array (140) on the basis of the housing (160) are arranged,the walls of a first portion (162), which surrounds the power module (110) and a second portion (164), which surrounds the capacitor arrangement (140),the dc - bus rail (130) for covering of the second portion (164) via the capacitor arrangement (140) is positioned and for at least partially cover of the first section (162) over the power module (110) is positioned.