基于导热塑料的新型LED灯散热器设计与优化

侯绿; 陈华; 周兴林

doi:10.3788/fgxb20163709.1103

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基于导热塑料的新型LED灯散热器设计与优化

器件制备及器件物理 | 更新时间：2020-08-12

- 基于导热塑料的新型LED灯散热器设计与优化
- Design and Optimization of A New Type LED Lamp Radiator Based on Thermal Conductive Plastics
- 发光学报 2016年37卷第9期页码：1103-1108
- 作者机构：
  
  1. 华中光电技术研究所武汉光电国家实验室, 湖北武汉 430223
  2. 武汉科技大学汽车与交通工程学院, 湖北武汉 430223
- 作者简介：
- 基金信息：
  
  湖北省自然科学基金面上项目（2015CFB220）();湖北省科技支撑计划（2014BEC055）();湖北省自然科学基金重点项目（2015CFA064）();国家自然
- DOI：10.3788/fgxb20163709.1103
  中图分类号： TN312.8
- 纸质出版日期：2016-9-5，
  
  收稿日期：2016-4-27，
  
  修回日期：2016-6-29，
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侯绿, 陈华, 周兴林. 基于导热塑料的新型LED灯散热器设计与优化[J]. 发光学报, 2016,37(9): 1103-1108

HOU LYU, CHEN Hua, ZHOU Xing-lin. Design and Optimization of A New Type LED Lamp Radiator Based on Thermal Conductive Plastics[J]. Chinese Journal of Luminescence, 2016,37(9): 1103-1108
侯绿, 陈华, 周兴林. 基于导热塑料的新型LED灯散热器设计与优化[J]. 发光学报, 2016,37(9): 1103-1108 DOI： 10.3788/fgxb20163709.1103.

HOU LYU, CHEN Hua, ZHOU Xing-lin. Design and Optimization of A New Type LED Lamp Radiator Based on Thermal Conductive Plastics[J]. Chinese Journal of Luminescence, 2016,37(9): 1103-1108 DOI： 10.3788/fgxb20163709.1103.

摘要

以某中等功率LED灯具为例，设计了塑料散热器的基本构型。采用数值仿真的办法对散热器的性能进行分析，并根据分析结果进行结构改进与优化。结果表明，在同样构型下塑料散热器散热性能低于铝合金散热器；与传统铝合金散热器不同，当肋片高度达到30 mm后，塑料散热器的散热能力趋于稳定；虽然导热塑料的红外发射率较高，仿真分析表明通过热辐射散出的热能只占总热很小的一部分，所以塑料散热器的设计应以增加对流换热面积为主，增加肋片与环境的视角系数是次要考虑因素。改进优化后的塑料散热器达到了和铝合金散热器相近的散热性能，总质量较铝合金散热器减轻了30%，验证了塑料散热器在降低产品重量方面的优越性。

Abstract

Taking a medium power LED lamp as an example

the basic configuration of the plastic radiator was designed. The performance of the radiator was analyzed by numerical simulation

and the structure was improved and optimized according to the analytical results. The results show that the thermal dissipating capacity of the Al alloy radiator is better than the plastic radiator when they have the same configuration. Different from the traditional aluminum alloy radiator

the heat dissipating capacity of the radiator plastic tends to be stable when the fins are higher than 30 mm. Although the infrared emission rate of the conductive plastic is as high as 0.9

the thermal energy dissipated through thermal radiation is very small

which means the plastic radiator design should be prior to increasing the convective heat exchange area. The thermal dissipation capacity of the optimized plastic radiator is quite close to that of the Al alloy radiator

and its weight is reduced 30% of the aluminum alloy radiator

which verifies the superiority of the plastic radiator product.

关键词

LED灯导热塑料散热器设计

Keywords

LED lampthermal conductive plasticsthermal radiatordesign

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