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为解决高热流密度电子器件的散热问题,设计了一套平板式不锈钢一氨环路热管(LHP)。研究表明,该平板式LHP能够在在热负荷2.5～130 W顺利启动运行,无明显温度波动现象发生。当蒸发器壁面温度低于60℃时,LHP能够传输的最大热负荷为130W,热流密度12.8 W/cm~2。LHP能在热负荷10～130 W范围内进行变热负荷运行,具有较强的自调节能力。LHP热阻整体上随着热负荷的增加而减小。但是当热负荷高于100W时,LHP热阻随着热负荷的增加略有上升。
In order to solve the problem of heat dissipation of high heat flux density electronic devices, a flat stainless steel-ammonia loop heat pipe (LHP) was designed. Studies have shown that the plate-type LHP can be successfully started running at a thermal load of 2.5 ~ 130 W, no obvious temperature fluctuations occur. When the evaporator wall temperature is lower than 60 ℃, LHP can transmit the maximum heat load of 130W, heat flux density of 12.8 W / cm ~ 2. LHP can perform thermal load operation in the range of 10 ~ 130 W heat load with strong self-adjusting ability. The LHP thermal resistance decreases overall as the thermal load increases. However, when the thermal load is higher than 100W, LHP thermal resistance increases slightly with the increase of thermal load.