热界面材料对大功率 LED 结温的优化研究

doi:10.16638/j.cnki.1671-7988.2025.006.013

汽车实用技术 ›› 2025, Vol. 50 ›› Issue (6): 82-87.DOI: 10.16638/j.cnki.1671-7988.2025.006.013

• 设计研究 • 上一篇

热界面材料对大功率 LED 结温的优化研究

徐胜亮 1,2，王占 2，姜叶洁 2，晏紫 2，刘彬彬 2，卢彪武 3

1.华中科技大学武汉光电国家研究中心； 2.广州汽车集团股份有限公司汽车工程研究院； 3.上海交通大学国家电投智慧能源创新学院

发布日期:2025-03-26
通讯作者: 徐胜亮
作者简介:徐胜亮（1993－），男，博士，研究方向为汽车车灯设计与开发
基金资助:
广州汽车集团有限公司和华南理工大学合作项目（X0M-CS-3）

Research on Optimization of Thermal Interface Materials for High Power LED Junction Temperature

XU Shengliang1,2 , WANG Zhan2 , JIANG Yejie2 , YAN Zi2 , LIU Binbin2 , LU Biaowu3

1.Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology; 2.GAC Automotive Research & Development Center; 3.National Electric Power Investment Smart Energy Innovation College, Shanghai Jiao Tong University

Published:2025-03-26
Contact: XU Shengliang

摘要/Abstract

摘要： 在造型紧凑、功能多样的汽车车灯大背景下，亮度高、发光面积小的大功率发光二极管（LED）被广泛用于汽车前照灯，但由此也带来散热问题。散热效率会影响 LED 的结温，从而影响 LED 的发光效率和工作寿命。热界面材料可以有效地降低热阻，提高大功率 LED 的散热效率。文章以 LED 前照灯为研究对象，提出焊锡作为热界面材料的方案，对比三种车灯常用的热界面材料对大功率 LED 结温的影响。数值模拟仿真结果表明，焊锡热界面材料的导热能力优于其他三种热界面材料，对于四种热界面材料，LED 的通电功率和结温都呈现线性正相关。文章还进一步分析了热界面材料的导热率、厚度、截面面积对 LED 结温的影响，可用于指导热界面材料的选取。

关键词: 热界面材料；前照灯；大功率 LED；结温

Abstract: Under the background of compact and versatile automotive headlights, high-power light emitting diode (LED) with high brightness and small luminous area are widely used in automotive headlights, but this also brings heat dissipation problems. The heat dissipation efficiency will affect the junction temperature of the LED, thus affecting the luminous efficiency and working life of the LED. Thermal interface materials can effectively reduce thermal resistance and improve the heat dissipation efficiency of high-power LED. This paper takes LED headlamp as the research object,puts forward the scheme of solder as the thermal interface material, and compares the effect of three kinds of thermal interface materials commonly used in headlamp on the junction temperature of high-power LED. The numerical simulation results show that the thermal conductivity of solder thermal interface materials is better than that of the other three thermal interface materials. For the four thermal interface materials, the current power and junction temperature of LED are linearly positive correlated. The influence of thermal conductivity, thickness and cross section area of thermal interface materials on LED junction temperature is further analyzed, which can be used to guide the selection of thermal interface materials.

Key words: thermal interface materials; headlamp; high-power LED; junction temperature

徐胜亮 1,2，王占 2，姜叶洁 2，晏紫 2，刘彬彬 2，卢彪武 3. 热界面材料对大功率 LED 结温的优化研究[J]. 汽车实用技术, 2025, 50(6): 82-87.

XU Shengliang1,2 , WANG Zhan2 , JIANG Yejie2 , YAN Zi2 , LIU Binbin2 , LU Biaowu3. Research on Optimization of Thermal Interface Materials for High Power LED Junction Temperature[J]. Automobile Applied Technology, 2025, 50(6): 82-87.

参考文献

[ 1 ] 周绍栋,聂畅,张辉,等.汽车前照灯发展综述与智能化趋势展望[J].机械工程学报,2023,59(22):380-400. [ 2 ] 郭常青,闫常峰,方朝君,等.大功率 LED 散热技术和热界面材料研究进展[J].半导体充电,2011,32(6):749- 755. [ 3 ] 梅生福,高云霞,邓中山,等.液态金属填充型硅脂导热性能实验研究[J].工程热物理学报,2015,36(3):624- 626. [ 4 ] FENG J,LIU Z J,ZHANG D Q,et al.Phase Change Materials Coated with Modified Graphene-oxide as Fillers for Silicone Rubber Used in Thermal Interface Applications[J].Carbon,2019,150:188-195. [ 5 ] 张淑芳,方亮,钟前刚,等.大功率 LED 散热用高导热硅脂的研制[J].半导体光电,2014,35(5):832-837. [ 6 ] 罗思彬,熊婷,雷震,等.导热硅脂的研究进展[J].有机硅材料,2013,27(5):383-386. [ 7 ] 刘俊峰,袁华,杜波,等.碳纳米管/导热硅脂复合材料的导热性能[J].材料科学与工程学报,2009,27(2):271- 273,313. [ 8 ] 汪倩,高伟,谢择民.高导热室温硫化硅橡胶和硅脂[J]. 有机硅材料,2000(1):5-7. [ 9 ] 高丽媛,杨宾,郝梦琳,等.碳纳米管/石蜡复合相变材料热性能的实验研究[J].应用化工,2019,48(4):752- 754,761. [10] 辛成,陆少锋,申天伟,等.高导热性微胶囊相变材料的研究进展[J].化工新型材料,2018,46(7):1-4. [11] 邹时波,李顶根,李卫,等.相变材料热管理下电池热失控传播过程数值分析[J].工程热物理学报,2019,40 (5):1105-1111. [12] 李响.导热材料对某相变储热器性能的影响[J].金属功能材料,2018,25(2):53-56. [13] CHEN H Y,GINZBURG V V,YANG J,et al.Thermal Conductivity of Polymer-based Composites:Fundamentals and Applications[J].Progress in Polymer Science, 2016,59(2):41-85. [14] BURGER N,LAACHACHI A,FERRIOL M,et al.Review of Thermal Conductivity in Composites:Mechanisms, Parameters and Theory[J].Progress in Polymer Science, 2016,61(7):1-28. [15] ARROYO R D,ISA F,ISELLA G,et al.Effect of Thermal Annealing on the Interface Quality of Ge/Si Heterostructures[J].Scripta Materialia,2019,170:52-56. [16] CHEN Y F,WU X J,SITU Y,et al.Ethylene-propylene Terpolymer-modified Polyethylene-based Phase Change Material with Enhanced Mechanical and Thermal Properties for Building Application[J].Industrial & Engineering Chemistry Research,2019,58(1):179-186. [17] DANZI S,MENETREY M,WOHLWEND J,et al.Thermal Management in Ni/Al Reactive Multilayers:Understanding and Preventing Reaction Quenching on Thin Film Heat Sinks[J].ACS Appl Mater Interfaces, 2019,11(45):42479-42485. [18] SWAMY M C K,NARAYAN S.A Review of the Performance and Characterization of Conventional and Promising Thermal Interface Materials for Electronic Package Applications[J].Journal of Electronic Materials,2019,48(12):7623-7634. [19] CAO H J,TAN Z Q,LU M H,et al.Graphene Interlayer for Enhanced Interface Thermal Conductance in Metal Matrix Composites:An Approach Beyond Surface Metallization and Matrix Alloying[J].Carbon,2019,150: 60-68. [20] 李根,纪玉龙,孙玉清,等.新型铜颗粒填充的液态金属热界面材料导热性能实验研究[J].西安交通大学学报,2016,50(9):61-65. [21] 王匀,唐书浩,涂文斌,等.高辐射阵列式 LED 水冷散热器的优化设计与实验[J].照明工程学报,2019,30 (2):81-86. [22] BARTLETT M D,KAZEM N,POWELL-PALM M J,et al.High Thermal Conductivity in Soft Elastomers with Elongated Liquid Metal Inclusions[J].Proceedings of the National Academy of Sciences,2017,114(9):2143- 2148. [23] 宋颖超,贺敬良,何志祝,等.热界面材料对 LED 车灯结温的影响[J].照明工程学报,2020,31(3):90-94. [24] 殷录桥,张金龙.热界面材料对高功率 LED 热阻的影响[J].光电子·激光,2013,24(10):1863-1867. [25] LI Z T,TANG Y,DING X R.Reconstruction and Thermal Performance Analysis of Die-bonding Filling States for High-power Light Emitting Diode Devices[J]. Applied Thermal Engineering,2014,65(1):236-245.

热界面材料对大功率 LED 结温的优化研究

Research on Optimization of Thermal Interface Materials for High Power LED Junction Temperature

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