Patents by Inventor Zhong Hai CHEN

Zhong Hai CHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Motor and Actuator
    Patent number: 10069381
    Abstract: An electric motor includes a stator and a rotor. The stator includes a motor housing with an open end and an end cover mounted to the open end. The rotor includes a rotor shaft that extends through the end cover. The end cover includes a bearing that supports the rotor shaft. The rotor shaft and motor housing are made of an electrically conductive material and are electrically connected with each other. The motor housing, end cover, bearing and rotor shaft cooperatively form an electromagnetic shield suppressing electromagnetic interference generated by the motor. Optionally, the rotor shaft drives a coaxial worm shaft of a gearbox by an insulating member, which further suppresses electromagnetic interference.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: September 4, 2018
    Assignee: JOHNSON ELECTRIC S.A
    Inventors: Qing Bin Luo, James Ching Sik Lau, Wen Ming Wu, Gui Hong Tian, Xin Peng Wei, Wing Cheung Lam, Qiang Xu, Zhong Hai Chen
  • Motor and Actuator
    Publication number: 20150357884
    Abstract: An electric motor includes a stator and a rotor. The stator includes a motor housing with an open end and an end cover mounted to the open end. The rotor includes a rotor shaft that extends through the end cover. The end cover includes a bearing that supports the rotor shaft. The rotor shaft and motor housing are made of an electrically conductive material and are electrically connected with each other. The motor housing, end cover, bearing and rotor shaft cooperatively form an electromagnetic shield suppressing electromagnetic interference generated by the motor. Optionally, the rotor shaft drives a coaxial worm shaft of a gearbox by an insulating member, which further suppresses electromagnetic interference.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 10, 2015
    Inventors: Qing Bin LUO, James Ching Sik LAU, Wen Ming WU, Gui Hong TIAN, Xin Peng WEI, Wing Cheung LAM, Qiang XU, Zhong Hai CHEN