Electronic Components in Cell Phone Handsets: Thermal Simulations and Evaluation of Modeling Assumptions

摘要

This paper discusses the procedure and approximations used when performing thermal analysis of electronic devices inside cell phone handsets. Characterization of the flow from a theoretical perspective is covered first together with the equations to determine the effective convection coefficient. A simulation software is then used to perform CFD and FEA models to evaluate the validity of different assumptions about the flow. The paper finishes off with recommendations aimed at reducing the overall complexity of similar analyses without impacting the accuracy.