The rotorcasing of the permanent-magnet motor has the advantages of simple structure, simplified manufacturing process, easy assembly and operation and low manufacture cost.
本发明中永磁电机转子外壳结构简单，制造工 艺简化，装配操作容易，制作成本低。
2
Think of it as a rotating transformer, with the primary windings residing in a stationary casing (stator) and the secondary conductors attached to an inner shaft (rotor).
Tesla's invention is, in essence, a rotating transformer. Its primary windings reside in a stationary steel casing (the stator) and and secondary conductors are attached to an inner shaft (the rotor).