Commutator Defines Stepping Effect Patents (Class 310/49.52)
  • Brushed direct current electric motor with salient pole rotor
    Patent number: 9099909
    Abstract: A brush direct current motor has a stator with a plurality of coils that correspond to a number of stator windings, a rotor with a number of poles, and a commutator. The commutator is connected to a first terminal of a direct current power source to convert the power into N phase alternating current. One end of each stator winding is connected to a respective phase of the alternating current via a brush and the other ends of the stator windings are connected to the second terminal of the direct current power source.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: August 4, 2015
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Yue Li, Li Sheng Liu, Yong Qing Qi, Hong Jian Zhang