高功率雷达冷板的流动性及散热性研究

发布时间：2018-01-22 03:11

本文关键词： 雷达冷板流动性散热性　出处：《机械设计与制造》2017年11期 　论文类型：期刊论文

【摘要】：针对某型雷达高功率且热流密度大模块,采用液冷强迫对流方式解决系统散热问题,分析了影响液冷冷板流量分布特性和散热特性的因素;基于搅拌摩擦焊技术的复杂流道焊接工艺,提出了三种流道结构形式冷板。依据单一变量原则,分别以流道宽度、深度、冷却液等效入口流速为变量,对不同流道结构冷板进行流动性及散热性研究,试验表明了为提高冷板流动性能和散热性能,应综合考虑冷板流道宽度、深度、冷却剂流速等因素影响;另外,O型结构冷板的综合流动性能和散热性能优于其他两种结构形式冷板。
[Abstract]:Aiming at the high power and high heat flux module of a certain type of radar, the heat dissipation problem of the system is solved by liquid-cooled forced convection, and the factors influencing the flow distribution and heat dissipation characteristics of the liquid-cooled plate are analyzed. Based on the complicated flow channel welding technology of friction stir welding, three types of cold plate with channel structure are proposed. According to the principle of single variable, the width and depth of flow channel and the equivalent inlet velocity of coolant are taken as variables respectively. The fluidity and heat dissipation of cold plates with different flow channel structures are studied. The results show that in order to improve the fluidity and heat dissipation performance of cold plates, the influence factors such as channel width, depth and coolant flow rate should be taken into account. In addition, the comprehensive fluidity and heat dissipation performance of O type cold plate are superior to those of the other two types of cold plate.
【作者单位】：上海航天设备制造总厂;
【基金】：国家科技重大专项资助(2015ZX04002101)
【分类号】：TN957
【正文快照】： 1引言随着半导体技术、高密度封装技术的快速发展,雷达设备的集成化、微小型化和高机动性等性能得到显著提高,使得雷达电子系统热流密度急剧升高,由此引发系统热环境急剧恶化,降低了雷达电子系统的工作可靠性、缩短使用寿命[1-3]。如何研制高效紧凑的冷却技术和方案成为雷达电

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