作者：王玉刚, 轩诗瑶, 赵晓东, 耿丽萍

作者单位：中国计量大学计量测试工程学院, 浙江 杭州 310018

关键词：液冷散热器;测试系统;热阻;流阻

摘要：

热阻和流阻是评价液冷散热器性能的主要参数。该文研制一套高精度的液冷散热器性能测试系统，由液冷散热器的进口流体温度控制单元、进口流量控制单元、模拟热源控制单元及测量单元组成。在台面温度测量方面，由于现有标准(GB/T 8446.2—2004)规定的温度测点位置不适应液冷散热器热阻测量，提出改进方法。开发相应的测试软件，具有系统控制、数据实时采集、测试报告输出等功能。并对某型号液冷散热器进行实验研究，通过实验数据对系统的测量不确定度进行分析，流阻测试的不确定度为0.48%，热阻测试的不确定度为2.4%。验证系统用于散热器流阻热阻测试的可靠性。

Development of performance testing system for liquid-cooled heat sink
WANG Yugang, XUAN Shiyao, ZHAO Xiaodong, GENG Liping
College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
Abstract: Thermal resistance and flow resistance are the main parameters to evaluate the performance of the liquid-cooled heat sink. A high-precision performance testing system for liquid-cooled heat sink was developed. The system was consisted of the inlet liquid temperature control unit, the liquid inlet flow rate control unit, the simulated heat source control unit, and measurement unit. Because the provisions of existing standard (GB/T 8446.2—2004) in measuring point location of surface temperature was not suited to the measurement of thermal resistance of liquid-cooled heat sink, an improved method was proposed. The testing software was developed, which had some useful functions, such as system controlling, real-time data acquisition and test report output. A liquid-cooled heat sink had been experimented. The uncertainty of the testing system was analyzed by using the experimental data, the relative uncertainty of flow resistance and thermal resistance is 0.48% and 2.4%, respectively. The reliability of the system for measuring the thermal resistance and flow resistance is verified.
Keywords: liquid-cooled heat sink;testing system;thermal resistance;flow resistance
2020, 46(4):97-101,142  收稿日期: 2019-02-28;收到修改稿日期: 2019-04-09
基金项目:
作者简介: 王玉刚(1972-),男,河北宁晋县人,副教授,博士,主要研究方向为制冷空调、热物性
参考文献
[1] 王博. 高功率电子器件产热传热特性的理论研究[D]. 南京:南京理工大学, 2015.
[2] 李庆友, 王文, 周根明. 电子元器件散热方法研究[J]. 电子器件, 2005, 28(4):937-941
[3] 马永锡, 张红. 电子器件发热与冷却技术[J]. 化工进展, 2006, 25(6):670-674
[4] BELHARDJ S, MIMOUNI S, SAIDANE A, et al. Using microchannels to cool microprocessors:a transmission-line-matrix study[J]. Microelectronics Journal, 2003, 34(4):247-253
[5] 支淼川. 电力电子设备水冷散热器的数值模拟[D]. 北京:华北电力大学, 2006.
[6] 杨建明. 高密度封装电子设备先进热管理技术发展现状[J]. 电子机械工程, 2016, 32(5):20-24
[7] 陈登科. 电子器件冷却技术[J]. 低温物理学报, 2016, 27(3):255-262
[8] 刘晓俊. 车辆散热器模块试验研究[D]. 杭州:浙江大学, 2010.
[9] 许仕君, 权力, 王立宁, 等. 水冷式采暖散热器热工性能节能型检测系统研究[J]. 建筑热能通风空调, 2012, 31(3):91-93
[10] 王江江, 荆有印, 安大伟, 等. 水冷式散热器实验台控制系统设计[J]. 暖通空调, 2007, 37(3):71-74
[11] 电力半导体器件用散热器第2部分:热阻和流阻测试方法:GB/T 8446.2-2004[S]. 北京:中国标准出版社, 2004.
[12] 杨世铭, 陶文铨. 传热学[M]. 4版. 北京:高等教育出版社, 2006.
[13] 耿维明. 测量误差与不确定度评定[M]. 2版. 北京:中国质检出版社, 2015.