摘要：本文针对新型永磁外转子爪极电机的发热问题，在对该种电机的特殊结构简单介绍的基础上，首先对电机内部的热源及热路进行了分析，建立了该种电机的等效热路模型，并导出了模型中各部分热阻的计算式；然后研制开发了该种电机的热路分析仿真程序，对电机运行工况下的发热及温升情况进行了仿真研究；最后通过样机实验平台，对该样机进行发热实验。实验结果与理论分析的一致性，验证了等效热路模型的正确性，为该种电机的深入研究奠定了理论和技术基础。

关键词：发热分析；爪极电机；外转子电机
Abstract: In order to study thermal situation of a novel claw pole machine with outer permanent magnet rotor (CPMPM), on the basis of introducing its special structure briefly, the equivalent thermal circuit model of this machine was built up, and then calculation equations of thermal resistance for every parts of the machine were derived Thermal analysis simulation procedure of this kind of machine was developed and the simulation research for thermal and temperature rise of this machine was done under the operating conditions Finally, the thermal test for this prototype was completed by means of experiment platform; Correctness of equivalent thermal circuit analysis model was verified through the comparison of experiment result and theory analysis, and also laid the foundation of theory and technology on further research on this kind of machine

Key words: thermal analysis; claw pole electric machine; outer rotor electric machine