The key idea of the new design is a 2-degree-of-freedom seven-bar linkage mechanism driven by a large constant speed motor and a small servomotor. 该设计的核心思理是由大功率的常速电机和小功率的伺服电机混合驱动一个两自由度的平面七杆机构。
In factories, it can design the simplex winding multiple-speed motors to change the type of winding attachment about the current single speed motors. 在工厂中，通过对现有的单速电机进行绕组改绕来设计单绕组多速电机。
