Patents by Inventor Rongjian BAI

Rongjian BAI 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).

  • Electric motor stator and electric motor
    Patent number: 12149135
    Abstract: The present disclosure discloses an electric motor stator and an electric motor. The electric motor stator comprises: a stator core, the stator core being provided with a plurality of stator core slots, the plurality of stator core slots being formed on a radial inner surface of the stator core and being separated by a preset slot distance along a circumferential direction of the stator core; a stator winding, the stator winding being mounted on the stator core, the stator winding being provided with Q pole pair coils, wherein Q/a number of slots per pole per phase=P, P being an integer; wherein the stator winding being a three-phase winding, the number of slots per pole per phase being 3; the stator winding comprising: a first coil set and a third coil set successively sleeved from outside to inside.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: November 19, 2024
    Assignee: BorgWarner PowerDrive Systems (Tianjin) Co., Ltd.
    Inventors: Rongjian Bai, Yanhai Liu
  • Electric Motor Stator and Electric Motor
    Publication number: 20230318380
    Abstract: The present disclosure discloses an electric motor stator and an electric motor. The electric motor stator comprises: a stator core, the stator core being provided with a plurality of stator core slots, the plurality of stator core slots being formed on a radial inner surface of the stator core and being separated by a preset slot distance along a circumferential direction of the stator core; a stator winding, the stator winding being mounted on the stator core, the stator winding being provided with Q pole pair coils, wherein Q/a number of slots per pole per phase=P, P being an integer; wherein the stator winding being a three-phase winding, the number of slots per pole per phase being 3; the stator winding comprising: a first coil set and a third coil set successively sleeved from outside to inside.
    Type: Application
    Filed: January 13, 2021
    Publication date: October 5, 2023
    Inventors: Rongjian BAI, Yanhai LIU