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本文介绍热管应用于机载多卜勒雷达上时的设计意图和预期达到的效果。采用热管技术,除了可以使速调管的热量散发出去外,还可以消除电磁干扰和噪音。原先使用通风机来冷却速调管,因其转速高达2万转/分,噪音达到96分贝,并有电磁干扰。现今应用热管来把速调管上的热量传至热管另一端并通过散热片把热量散发出去。通过各种试验,现找到比较好的解决办法如下: 1.根据机载雷达的需要,设计制造了各种不同性能的热管,以适应飞机的各种姿态。 2.从热设计的角度来考虑速调管与热管之间的最佳连接,使最热点的热量能直接传出去,从而降低速调管的温度。
This article describes the design intent and expected results of heat pipe applications on airborne Doppler radars. The use of heat pipe technology, in addition to the klystron heat can be emitted, but also can eliminate electromagnetic interference and noise. The original use of fan to cool the klystron, because of its speed up to 20,000 rev / min, the noise reached 96 decibels, and electromagnetic interference. Nowadays, the heat pipe is used to transfer the heat on the klystron to the other end of the heat pipe and dissipate the heat through the heat sink. Through a variety of tests, we have found a better solution is as follows: 1. According to the needs of airborne radar, design and manufacture of a variety of different performance of the heat pipe to adapt to the aircraft’s various gestures. 2. From the thermal design point of view to consider the best connection between the klystron and the heat pipe so that the hottest heat can be directly transmitted to reduce the temperature klystron.