Fuel Cell Stack CVM Chip Solder Joint Structural Analysis with ANSYS Sub-Modeling Technique

Structural analysis tools have been used to investigate stress conditions for electronic components used in fuel cells subjected to tough environmental conditions such as heat and moisture. The Cell Voltage Monitoring (CVM) system is an example of electronic device used in fuel cell stacks that provide the essential service of monitoring the voltages produced by cells during operation. Failure of the CVM electronics could signal false cell performance and send inconsistent signals to the vehicle control unit. The electrical circuit boards need to be compatible with fuel cell temperature and moisture condition that are dependant on operation drive cycles from the vehicle. These cycles directly impact the active electrical components that are attached to printed circuit board, and through the use of finite element analysis tools can be investigated to insure mechanical compliance.

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