Xiang Jianhua, Zheng Haoxing, Wang Yipin, Zhang Chunliang, Zhou Chao, Chen Conggui
School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China.
Materials (Basel). 2019 Jul 8;12(13):2193. doi: 10.3390/ma12132193.
Thermal management is crucial to guarantee the normal operation of light-emitting diodes (LEDs) Phase change heat sink is superior to traditional metal solid heat sink due to very small thermal resistance. In this study, a new type of phase change heat sink for high power LEDs is first designed. Then, the fabrication process of boiling structures at the evaporation surface of the phase change heat sink is discussed and analyzed. To make a comparison and deep discussion, the machining process is simulated through the FEM (finite element analysis) software, DEFORM-3D. Last but not least, heat transfer performance of the fabricated phase change heat sink is tested. Results have shown that the designed new type of phase change heat sink has superior heat transfer performance and is suitable for heat dissipation of high-power LEDs.
热管理对于保证发光二极管（LED）的正常运行至关重要。相变散热器由于其非常小的热阻，优于传统的金属固体散热器。在本研究中，首先设计了一种用于高功率LED的新型相变散热器。然后，讨论并分析了相变散热器蒸发表面沸腾结构的制造工艺。为了进行比较和深入讨论，通过有限元分析（FEM）软件DEFORM-3D对加工过程进行了模拟。最后，测试了所制造的相变散热器的传热性能。结果表明，所设计的新型相变散热器具有优异的传热性能，适用于高功率LED的散热。
