Integrated motor propulsor ( IMP ) is a new type of propulsion, direct drive propeller rotation by the motor has many advantages. This paper introduces the development of the integrated motor propulsor and its structural characteristics. It gives the brief introduction about the structure and principle of several kinds of double rotor motors. Designed a contra-rotating IMP for a ultra-small underwater vehicle. Design of a BLDC motor based on magnetic circuit method. Then-establishes a model and simulates in Ansoft software. The results show that the design is reasonable and meet the design requirements. It is proven that an integrated motor propeller is possible.%集成电机推进器是一种新型的推进装置,它由电机直接带动螺旋桨旋转,具有诸多优点.本文简述集成电机推进器的发展历程和结构设计特点.介绍对转电机的设计思路和方法.为满足超小型水下机器人的实际需要,设计了1个对转集成电机推进器,基于磁路方法设计了驱动用直流永磁无刷电机,然后在Ansoft软件中建立直流无刷电机的模型进行仿真分析.结果表明设计是合理的,满足设计要求,证明集成电机推进器的可行性.
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