机载电子设备泡沫金属换热器研究

Research on Foam Metal Heat Exchanger of Airborne Electronic Equipment

机载电子设备朝着小型化、高集成度的方向发展,元器件散热问题日趋紧迫。泡沫金属是一种新型的功能材料,可增强电子设备换热器空气侧传热。对泡沫金属的结构、性能特点、换热机理进行了介绍,针对机载电子设备设计了一种泡沫铝换热器,与传统金属翅片换热器进行了实验对比,结果表明,泡沫铝换热器的散热效果明显优于传统金属翅片换热器。

Heat dissipation problems become increasingly urgent along with the miniaturization and high integration development direction of airborne electronic equipments. As a new type of function material,foam metal can strengthen the air-side heat transfer of heat exchanger. In this paper,the construction,performance features and heat- transfer principle are introduced briefly,and a kind of foam aluminum heat exchanger is designed in allusion to the airborne electronic equipment,and then it is compared to the traditional metal-fin heat exchanger. The results show that the heat dissipation effect of the foam aluminum heat exchanger is obviously superior to the traditional metal-fin heat exchanger.