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Summary & Details

Thermal Management of Next Generation SiC-based Automotive Inverters

次世代SiC 型車載用インバータのサーマルマネジメント

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20224518

Paper/Info type: Journal of Society of Automotive Engineers of Japan

Vol.76 No.9

Pages: 78-83(Total 6 p)

Date of publication: Sep 2022

Publisher: JSAE

Language: Japanese

Detailed Information

Category(J)	ホットトピックス Translation
Category(E)	Hot Topics
Author(J)	1) 結城和久
Author(E)	1) Kazuhisa Yuki
Affiliation(J)	1) 山陽小野田市立山口東京理科大学
Abstract(J)	次世代のSiC型車載用インバータでは，素子での発熱密度が500W/㎠にも達すると予想されている．この様な高発熱環境では素子と冷却面間での熱抵抗問題が顕在化し，大きな温度差が生じる．このブレークスルー技術としてロータス型ポーラス銅を用いた沸騰浸漬冷却技術を紹介し，無動力で500W/㎠の冷却性能を達成できることを報告する． Translation
Abstract(E)	In thermal management of SiC-based automotive inverters with high heat generation of 500 W/cm², several thermal resistances, which weren’t taken into account so far, rise up to the surface. A temperature gap between a SiC chip and a cooling surface exceeds 70 K due to the existence of an insulating substrate, TIMs, a heat spreader, etc. This fact leads to a proposal of utilizing two-phase immersion cooling as the breakthrough technology. It is reported that the two-phase immersion cooling using a breathing phenomenon induced by a lotus porous copper enables the cooling performance of over 500 W/cm².

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