Jet Impingement Cooling in Power Electronics for Electrified Automotive Transportation: Current Status and Future Trends

Effective thermal management of power electronics in electric vehicles is essential for reliability and increased power density. Currently, traditional cooling technologies such as cold plates and heat sinks have been utilized by the automotive industry. As the next generation of power electronics implements wide-bandgap devices, however, increased heat fluxes will require more advanced cooling strategies. Recently, jet impingement has gained attention as an advanced cooling technique for power electronics due to its proven thermal performance in high-heat-flux applications. This article aims to review the state-of-the-art jet impingement designs applied for power electronics cooling, as well as review future jet impingement technology. Important factors for widespread implementation such as heat transfer, pressure drop, and reliability are discussed, along with the current technical gaps and challenges for jet impingement research in electrified transportation.