Luo Tianlin, Zhu Changliang, Li Baowen, Shen Xiangying, Zhu Guimei
Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P.R. China.
Department of Physics, Southern University of Science and Technology, Shenzhen, P.R. China.
iScience. 2024 Dec 18;28(2):111630. doi: 10.1016/j.isci.2024.111630. eCollection 2025 Feb 21.
The advent of electronic devices has revolutionized engineering applications and fundamentally transformed society. However, their lifespan is significantly impacted by operational temperatures, as excess heat can elevate localized temperatures (hot spot) and damage components. Efficient heat dissipation through heat sinks is therefore crucial. In this research, we optimized intricate network structures for designing heat sink fins. These novel configurations provide thermal dissipation capabilities equivalent to conventional designs while substantially reducing weight. We utilized 3D printing to manufacture these designs and confirmed their effectiveness through experimental validation. The optimized network-based heat sink designs exhibit a weight reduction of approximately 50% while maintaining cooling efficiency comparable to commercially available models. Additionally, we introduced the "effective heat transfer coefficient " to assess heat dissipation effectiveness. This factor considers temperature fluctuations under thermal loads and the heat sink's surface area. The refined heat sink designs were successfully implemented to cool light emitting diodes (LEDs） in practical applications.
电子设备的出现彻底改变了工程应用，并从根本上改变了社会。然而，它们的使用寿命会受到工作温度的显著影响，因为过多的热量会使局部温度（热点）升高并损坏组件。因此，通过散热器进行高效散热至关重要。在这项研究中，我们优化了复杂的网络结构以设计散热器鳍片。这些新颖的结构提供了与传统设计相当的散热能力，同时大幅减轻了重量。我们利用3D打印来制造这些设计，并通过实验验证证实了它们的有效性。基于优化网络的散热器设计在保持与市售型号相当的冷却效率的同时，重量减轻了约50%。此外，我们引入了“有效传热系数”来评估散热效果。该因素考虑了热负载下的温度波动和散热器的表面积。经过改进的散热器设计成功应用于实际应用中，为发光二极管（LED）散热。
