电机散热系统的研究现状与发展趋势

高效率的散热系统是抑制电机温升、提高电机运行稳定性和延长电机寿命的重要基础。详细介绍了风冷、液冷和蒸发冷却三种电机常用散热系统的发展现状；分析讨论了各类电机散热系统的优缺点和适用范围，重点综述了目前国内外在提高电机散热系统冷却效率方面的研究进展。结合额外热路增强型电机散热方案和相变散热技术提出了以相变传热器件来提高电机散热效率的新方案，最后对电机散热系统的发展趋势进行了科学预测与展望。

Development Status and Perspective Trend of Motor Cooling Systems

Cooling systems with high heat dissipation efficiency were the important foundations of restraining motor temperature rise, improving motor operation stability and prolonging motor life. The development status of air cooling, liquid cooling and evaporative cooling was introduced, which were commonly used in the cooling systems for motors. The advantages, disadvantages and application ranges of various motor cooling systems were analyzed and discussed. The research progresses in improving the cooling efficiency of motor heat dissipation system at home and abroad were reviewed. By combining the additional thermal circuit enhanced motor cooling system and the phase change heat dissipation technology, a new scheme to improve the heat dissipation efficiency of motors using phase change heat transfer devices was proposed. Finally, the development trend of the motor heat dissipation systems was predicted and prospected scientifically.