家电科技 ›› 2022, Vol. 0 ›› Issue (zk): 105-108.doi: 10.19784/j.cnki.issn1672-0172.2022.99.022

• 第一部分 优秀论文 • 上一篇    下一篇

翅片式散热器表面粗糙度对界面热阻的影响研究

冯烈, 徐敬伟, 闫红庆   

  1. 珠海格力电器股份有限公司 广东珠海 519000
  • 发布日期:2023-03-28
  • 作者简介:冯烈(1992—),男,中级工程师。研究方向:电子产品焊接技术研究、仿真技术在电子制造领域的应用、生产质量和售后问题整改分析。地址:广东省珠海市香洲区前山金鸡路789号工艺部。E-mail:f867512281@163.com。

Study on the effects of the surface roughness of the wing-type radiator on the interface thermal resistance

FENG Lie, XU Jingwei, YAN Hongqing   

  1. Gree Electric Appliances Inc. of Zhuhai Zhuhai 519000
  • Published:2023-03-28

摘要: 针对翅片式散热器二次加工带来的表面粗糙度变大问题,运用ANSYS软件,建立散热器-散热膏-功率器件微观热传导模型,分析传热规律,对散热器表面粗糙度对散热性能的影响进行研究,确定散热器合适的表面粗糙度,用于指导翅片式散热器的加工生产。根据实际加工情况,对比了表面粗糙度Ra 3.2 μm和6.3 μm两种情况下整机温升实验,在同一工况整机电流达到一致的情况下,散热效果差异不大。

关键词: 翅片式散热器, 热阻, ANSYS, 表面粗糙度

Abstract: Aiming at the problem of large surface roughness brought by the secondary processing of the fins of the fins, use ANSYS software to establish a radiator-heat dissipation cream-power device micro-thermal conductivity model, analyze the heat transfer law, and use the roughness of the radiator to heat the heat dissipation. The impact of performance is studied to determine the appropriate surface roughness of the radiator to guide the processing and production of the wing-type radiator. According to the actual processing situation, the surface roughness Ra 3.2 μm and 6.3 μm were compared with the temperature rise of the machine. In the same case of the same working condition, the heat dissipation effect was not much different.

Key words: Wing-style radiator, Thermal resistance, ANSYS, Urface roughness

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