Heat transfer performance of uni-directional porous heat sink for cooling of next generation on-vehicle inverter

Takai, Kio; Yuki, K.; Yuki, Kazuhisa; Kibushi, Risako; Unno, Noriyuki

doi:10.23919/icep.2017.7939353

Cited by 2 publications

(2 citation statements)

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“…Although the results were presented for IGBTs, the high thermal flux capability of porous heat sinks makes this technology suitable for WBGs. For instance, Takai et al (2017) suggested the use of a porous heat sink for a GaN-based inverter [103]. The optimal structure of a cold plate can also increase the heat transfer capability of the device.…”

Section: Other Promising Cooling Approachesmentioning

confidence: 99%

“…The present cooling design provides a low Rth = 0.185 K/W and a low inlet pressure Pin = 5 Although the results were presented for IGBTs, the high thermal flux capability o heat sinks makes this technology suitable for WBGs. For instance, Takai et al (2 gested the use of a porous heat sink for a GaN-based inverter [103]. The optimal structure of a cold plate can also increase the heat transfer cap the device.…”

Section: Other Promising Cooling Approachesmentioning

confidence: 99%

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A Thorough Review of Cooling Concepts and Thermal Management Techniques for Automotive WBG Inverters: Topology, Technology and Integration Level

et al. 2021

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The development of electric vehicles (EVs) is an important step towards clean and green cities. An electric powertrain provides power to the vehicle and consists of a charger, a battery, an inverter, and a motor as the main components. Supplied by a battery pack, the automotive inverter manages the power of the motor. EVs require a highly efficient inverter, which satisfies low cost, size, and weight requirements. One approach to meeting these requirements is to use the new wide-bandgap (WBG) semiconductors, which are being widely investigated in the industry as an alternative to silicon switches. WBG devices have superior intrinsic properties, such as high thermal flux, of up to 120 W/cm2 (on average); junction temperature of 175–200 °C; blocking voltage limit of about 6.5 kV; switching frequency about 20-fold higher than that of Si; and up to 73% lower switching losses with a lower conduction voltage drop. This study presents a review of WBG-based inverter cooling systems to investigate trends in cooling techniques and changes associated with the use of WBG devices. The aim is to consider suitable cooling techniques for WBG inverters at different power levels.

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Section: Other Promising Cooling Approachesmentioning

confidence: 99%

Section: Other Promising Cooling Approachesmentioning

confidence: 99%