摘要：本文阐述了一种水冷无刷力矩电动机的设计，为了保证电机能够长时在额定载荷下工作，进行电机的热仿真研究。通过热仿真计算，相对精确的估算电机的温升，根据工程经验，得到仿真工作估算存在误差分析，从而得到电机温升的工程化估算方法。

关键词：无刷力矩电动机；热仿真；水冷；温升估算
Abstract: This paper expatiated design of watercooled brushless torque motor, research of motor heating was simulated  in order to ensure working perennially in rating load. By calculation of heating simulation, temperature rise of motor was calculated exactly, according as engineering experience, find out that  simulating calculation existed error analysis, engineering calculation method of temperature rise of motor was attained.

Key words: brushless torque motor; heating simulation; watercooled; temperature  rise  calculation