热管作为一种新型、高效的传热元件,已在许多领域获得应用。特别是近几年用于回收余热而节能的重力热管在国内兴起高潮,并对其研制应用情况进行了大量报导。相比之下,作为热管重要分支之一的旋转热管,其开发应用现状却鲜为人知,很少有文献发表。事实上,旋转热管在旋转体中具有颇为可观的实用价值,国内外都在积极开展这方面的研究试验,并已取得可喜成绩。尤其在利用旋转热管提高电动机冷却性能,以实现电动机小型、轻量化和构造全封闭方面颇见成效。小形、轻量化及构造全封闭化意味着原材料的大量节约和产品性能的不断改 Heat pipe, as a new type of efficient heat transfer element, has been applied in many fields. Especially in recent years, the gravity heat pipe used to recover waste heat and energy-saving has risen in the country and a large number of reports have been made on its research and application. In contrast, as an important branch of the heat pipe rotating heat pipe, its development and application status is little known, very few published. In fact, the rotating heat pipe has quite considerable practical value in the rotating body, and both domestic and foreign countries are actively carrying out research experiments in this respect and have achieved gratifying results. Especially in the use of rotating heat pipe to improve the motor cooling performance, in order to achieve the motor small, lightweight and fully closed construction quite fruitful. Smaller, lightweight and fully enclosed construction means a lot of raw material savings and continuous improvement of product performance