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1. (WO2018146136) ELECTRIC DEVICE AND METHOD FOR PRODUCING AN ELECTRIC DEVICE

Pub. No.:    WO/2018/146136    International Application No.:    PCT/EP2018/053055
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Thu Feb 08 00:59:59 CET 2018
IPC: H05K 7/20
Applicants: LEOPOLD KOSTAL GMBH & CO. KG
Inventors: WESSEL, Sven
LENKENHOFF, Christian
HEES, Norbert
Title: ELECTRIC DEVICE AND METHOD FOR PRODUCING AN ELECTRIC DEVICE
Abstract:
The invention relates to an electric device having power electronics which are accommodated in a metal housing, wherein components of the power electronics are disposed on a first main surface of a circuit carrier consisting of a metallic baseplate and at least one layer of structured conductive material on a dielectric, and at least one dividing wall of the housing is in direct contact with a fluid cooling medium. Said electric device is characterized in that the dividing wall of the housing is formed at least partially by the circuit carrier, such that the second main surface opposite the component side is in direct contact with the fluid cooling medium, and in that the circuit carrier is connected to the rest of the housing in a fluid-tight manner by means of a welded connection. A method according to the invention for producing such an electric device provides for the circuit carrier to be connected to the rest of the housing in a fluid-tight manner by means of a friction stir welding method.