Patents by Inventor Zheng Junjie

Zheng Junjie 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).

  • Structure of transformer bobbin assembly having multiple step pin rows
    Patent number: 6509822
    Abstract: A structure of a transformer bobbin assembly is provided. The structure of the transformer bobbin assembly includes a cylinder, a magnetic core located within the cylinder, a primary winding coil and a secondary winding coil separately wound on the cylinder, a primary base and a secondary base connected to the cylinder, a plurality of primary pin leads disposed in a row and on the primary base, and a plurality of secondary pin leads disposed in multiple step rows and on the secondary base, wherein both ends of the secondary winding coil are connected to at least two of the secondary pin leads for providing a predetermined minimum creepage and clearance distance.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: January 21, 2003
    Assignees: Delta Electronics, Inc., Delta Electronics Public Ltd.
    Inventors: Zheng Junjie, Didier Chaumet
  • Structure of transformer bobbin assembly having multiple step pin rows
    Publication number: 20020070833
    Abstract: A structure of a transformer bobbin assembly is disclosed. The structure of the transformer bobbin assembly includes a cylinder, a magnetic core located within the cylinder, a primary winding coil and a secondary winding coil separately wound on the cylinder, a primary base and a secondary base connected to the cylinder, a plurality of primary pin leads disposed in a row and on the primary base, and a plurality of secondary pin leads disposed in multiple step rows and on the secondary base, wherein both ends of the secondary winding coil are connected to at least two of the secondary pin leads for providing a predetermined minimum creepage and clearance distance.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 13, 2002
    Inventors: Zheng Junjie, Didier Chaumet