Patents by Inventor Myoung Gil Han

Myoung Gil Han 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).

  • Widening apparatus for hairpin-type stator coil
    Patent number: 11735983
    Abstract: A widening apparatus for a hairpin-type stator coil is provided to extend a distance between welding portions of hairpin-type stator coils inserted into slots of a stator core, and the widening apparatus includes, a coil support unit installed on a base frame, a tool driving unit installed on the base frame to be vertically movable below the coil support unit, and including a first gear operation part and a second gear operation part, a plurality of lower widening tools operably connected to the first gear operation part, and reciprocally movable along a layer direction of the stator coils, and a plurality of upper widening tools operably connected to the second gear operation part, and configured to be reciprocally movable above the plurality of lower widening tools.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: August 22, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Yeongsu Yu, Myoung Gil Han, Jiwon Yu
  • WIDENING APPARATUS FOR HAIRPIN-TYPE STATOR COIL
    Publication number: 20220385151
    Abstract: A widening apparatus for a hairpin-type stator coil is provided to extend a distance between welding portions of hairpin-type stator coils inserted into slots of a stator core, and the widening apparatus includes, a coil support unit installed on a base frame, a tool driving unit installed on the base frame to be vertically movable below the coil support unit, and including a first gear operation part and a second gear operation part, a plurality of lower widening tools operably connected to the first gear operation part, and reciprocally movable along a layer direction of the stator coils, and a plurality of upper widening tools operably connected to the second gear operation part, and configured to be reciprocally movable above the plurality of lower widening tools.
    Type: Application
    Filed: December 7, 2021
    Publication date: December 1, 2022
    Inventors: Yeongsu Yu, Myoung Gil Han, Jiwon Yu