热管冷板常温与高低温性能试验研究

为了研究热管冷板在机载条件下的传热性能与环境适应性，针对不同类型及同类型不同配置方式的9种热管冷板，搭建了常温与高低温试验台，对不同热管冷板的常温传热性能与高低温启动性能及稳态性能进行试验研究. 结果表明: 常温试验中，双U形普通铜水热管冷板的传热性能最佳，均温板次之; 高低温试验中，双U形普通铜水热管冷板的启动时间与稳态温度均低于微热管阵列冷板，但受环境温度影响最大，带毛细结构微热管阵列冷板的启动时间与稳态温度均低于不带毛细结构微热管阵列冷板，且受环境温度影响最小. 研究结论可为机载电子设备冷却热管冷板的选择与设计提供依据.

Experimental Study on the Performance of Heat Pipe Cold Plate under Normal and High-Low Temperature

Heat pipe cold plate is an effective way to cool down electronic equipment. In order to study the heat transfer characteristics and service life of heat pipe cold plate under airborne conditions, nine kinds of different heat pipe cold plates are designed and manufactured, then normal temperature test-bed is developed to investigate the heat transfer characteristics at normal temperature, and high and low temperatures test-bed is built to study the start-up performance and stable-state performance at high and low temperature. The results of normal temperature tests show that the double-U ordinary copper-water heat pipe cold plate has the best heat transform characteristics and the vapor chamber followed. The high and low temperature tests show that both the start-up time and stable temperature of double-U ordinary copper-water heat pipe cold plate are lower than micro-heat pipe arrays, but most affected by temperature, and the same performance of micro-heat pipe arrays with capillary structure are better than that without capillary structure, and least affected by temperature. The research work can provide some foundation for the selection and design of the heat pipe cold plate used for cooling the airborne electronic equipment.