With the increasing demand for power density in new energy vehicles and high-power electrical conversion applications, silicon carbide (SiC) power modules are often subjected to extremely high currents and frequent switching operations. The substantial heat generated may lead to system failures, making the investigation of the thermal performance of SiC power modules critically important. The influence of different fin shapes and fin spacing ratios on the thermal performance of SiC power modules was explored through coupled thermal-fluid simulation and experimental investigations. The results indicate that a droplet-shaped fin configuration offers superior thermal performance compared to other fin shapes, and there exists an optimal fin spacing ratio that maximizes the heat dissipation capability of the SiC power module. The research results provide a foundation for the design of heat sinks for SiC power modules in new energy vehicle applications.
ZOU Lin, ZHOU Liang, GUO Xiao-yu, LI Pin, LU Jie.
Thermal Performance Analysis of Silicon Carbide Power Modules for New Energy Vehicles[J].
Science Technology and Engineering, 2026, 26(20): 8434-8441 DOI:10.12404/j.issn.1671-1815.2505481
TianXiaofei, WangLinshan, LiangXuebing, et al. Research progress of liquid-cooled pin-fin heatsinks for power electronic devices[J]. Materials Reports, 2024, 38(21): 68-78.
LiuFang, YangZhipeng, YuanWeixing, et al. Research status and development prospect of the chip cooling technologies[J]. Science Technology and Engineering, 2018, 18(23): 163-169.
HeHaibin, HuWentao, RuanXiaodong, et al. Optimization of motor controller's heat dissipation fins based on regression analysis[J]. Science Technology and Engineering, 2022, 22(2): 828-834.
DingJie, WangPing, ZhangBenguo, et al. Stability and heat transfer characteristics in automotive radiators of mixed-based nanofluids[J]. Science Technology and Engineering, 2019, 19(1): 196-206.
[13]
WangY, JonesS, DaiA, et al. Reliability enhancement by integrated liquid cooling in power IGBT modules for hybrid and electric vehicles[J]. Microelectronics Reliability, 2014, 54(9): 1911-1915.
[14]
LiuZ G, GuanN, ZhangC W, et al. The flow resistance and heat transfer characteristics of micro pin-fins with different cross-sectional shapes[J]. Nanoscale and Microscale Thermophysical Engineering, 2015, 19(3): 221-243.
WangBin, ZhuKai, WangYabo, et al. Experimental study on cooling and flow performance of water-coolingradiator with different pin-fins structures for CPU cooling[J]. Chemical Industry and Engineering Progress, 2017, 36(6): 2031-2037.
[17]
JadhavR S, BalajiC. Fluid flow and heat transfer characteristics of a vertical channel with detached pin-fin arrays arranged in staggered manner on two opposite endwalls[J]. International Journal of Thermal Sciences, 2016, 105: 57-74.
GuoJianzhong, XuMin, ZhangGuangde, et al. Performance analysis and optimization of automobile radiator fin structure[J]. Science Technology and Engineering, 2016, 16(26): 58-64.
ZhangChuncheng, YuanRuiming, LüQiang, et al. Numerical investigation of the effect of different radiator structures on heat dissipation characteristics[J]. Environmental Technology, 2024, 42(6): 152-156.
ZhangRuijia, ZhangYaping, YinRenpan. Numerical optimization of flow and heat transfer characteristics of pin-fin radiator module[J]. Science Technology and Engineering, 2024, 24(5): 1923-1929.
TangZhongjian, QuFanlin, LiHao, et al. Optimization of water-cooled radiator for pmsm controller of electric vehicle[J]. Journal of Xihua University(NaturalScience Edition), 2022, 41(6): 91-97.
LiFang, LiuPing, TangRuiqi, et al. Analysis of chip thermal performance under different cooling fin structures[J]. Journal of Xiangtan University (Natural Science Edition), 2024, 46(5): 48-58.
ZhanYongfu, ZhangXia, WangJianbo. Influence analysis of the structural parameters on the cooling performance of automobile radiator[J]. Machinery Design & Manufacture, 2022(6): 145-148.
[33]
YangP, MazlanA Z A. Thermal optimisation study on electrical machine controller for an electric vehicle[J]. International Journal of Vehicle Systems Modelling and Testing, 2024, 18(2): 175-192.
[34]
GhahremannezhadA, VafaiK. Thermal and hydraulic perfor-mance enhancement of microchannel heat sinks utilizing porous substrates[J]. International Journal of Heat and Mass Transfer, 2018, 122: 1313-1326.