Analyzing causes of connector deterioration

Electrical connector systems are the interface between the assemblies/modules of mechatronic or electrical systems, for example in automobiles. Up to now, only the electrical properties from the data sheet have been taken into account prior to installation: environmental impact such as vibration during later operation has not been assessed. This can lead to premature wear and, in the worst case, costly recalls.

© Fraunhofer EMFT/ Bernd Müller
Vibration behavior of electrical conductors depending on the mounting

In the StroBA project, a Fraunhofer EMFT research team at the Oberpfaffenhofen site is taking a closer look at the effects of environmental impact on connector systems in cooperation with Ostwestfalen-Lippe University of Applied Sciences: the aim here is to look at how damage and aging response is influenced by different types of micromotion (rotation and translation) and by design features and line routing. 

The findings will be used to produce two guides on structural design and on the selection and testing of connectors. These are intended to make it easier for development engineers to apply design measures that minimize potential damage patterns during the design stage. For users of connectors, the suggestions developed enable reliable selection of the right connector for the task at hand. In turn, this should not only shorten the time required to test new connectors but also increase the reliability and performance of the products.

The project is funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) and the German Federation of Industrial Research Associations (AiF) under reference 20139 N. 

 

 

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Offering: Reliability and Failure Analysis of Electronic Components and Systems

Project: Reliable electrical connections for drive systems

Competence area: Analysis and Test of Electronical Components and Systems