Patents by Inventor Liji SU

Liji SU 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).

  • Publication number: 20240145188
    Abstract: A high-voltage DC relay with permanent magnet arc extinguishing function includes two static contact leading-out terminals having static contacts; a movable contact piece having movable contacts; first permanent magnets around the movable contact piece, wherein a side having polarity of the first permanent magnets faces the contacts such that arc extinction is implemented using a horizontal magnetic field formed by the first permanent magnets; and third permanent magnets provided on the static contact leading-out terminals, the polarity of the sides facing the contacts of the third permanent magnets is opposite to that of the first permanent magnets such that magnetic field strength at the contacts can be enhanced by a longitudinal magnetic field formed by the first and the third permanent magnets, and arc extinction can be implemented.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 2, 2024
    Inventors: Wenguang DAI, Liji SU, Wenhao HUA, Songsheng CHEN, Meng WANG, Yaoshan HONG