Patents by Inventor Qiulian Li

Qiulian Li 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).

  • Direct current load response control method and device, and a direct current electric appliance
    Patent number: 12027850
    Abstract: The present disclosure relates to the technical field of smart home, and provides a direct current load response control method and device, and a direct current electric appliance. The direct current load response control method of the present disclosure comprises: monitoring a utilization voltage of a direct current load; determining whether the utilization voltage is within a response interval; and controlling the operation of the direct current load according to the determination result and the type of the direct current load.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: July 2, 2024
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Jinrong Yuan, Zhigang Zhao, Weijin Li, Qiulian Li, Jiangxi Song
  • Direct current plug, direct current socket and electric equipment
    Patent number: 11831104
    Abstract: The present disclosure relates to a direct current (DC) plug, a DC socket and electric equipment. The DC plug is configured to be connected to a DC socket to supply power to an electrical equipment. The DC plug includes: a center contact, including a first center contact side surface, a second center contact side surface, a third center contact side surface and a fourth center contact side surface, wherein the first center contact side surface and the second center contact side surface are oppositely disposed, and the third center contact side surface and the fourth center contact side surface are oppositely disposed; first plug current conductors, disposed on the first center contact side surface and the second center contact side surface; and second plug current conductors, disposed on the third center contact side surface and the fourth center contact side surface.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: November 28, 2023
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Zhigang Zhao, Lei Li, Jinrong Yuan, Qiulian Li, Xiangqian Li
  • DIRECT CURRENT LOAD RESPONSE CONTROL METHOD AND DEVICE, AND A DIRECT CURRENT ELECTRIC APPLIANCE
    Publication number: 20220320859
    Abstract: The present disclosure relates to the technical field of smart home, and provides a direct current load response control method and device, and a direct current electric appliance. The direct current load response control method of the present disclosure comprises: monitoring a utilization voltage of a direct current load; determining whether the utilization voltage is within a response interval; and controlling the operation of the direct current load according to the determination result and the type of the direct current load.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 6, 2022
    Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Jinrong YUAN, Zhigang ZHAO, Weijin LI, Qiulian LI, Jiangxi SONG
  • Direct Current Plug, Direct Current Socket and Electric Equipment
    Publication number: 20220006241
    Abstract: The present disclosure relates to a direct current (DC) plug, a DC socket and electric equipment. The DC plug is configured to be connected to a DC socket to supply power to an electrical equipment. The DC plug includes: a center contact, including a first center contact side surface, a second center contact side surface, a third center contact side surface and a fourth center contact side surface, wherein the first center contact side surface and the second center contact side surface are oppositely disposed, and the third center contact side surface and the fourth center contact side surface are oppositely disposed; first plug current conductors, disposed on the first center contact side surface and the second center contact side surface; and second plug current conductors, disposed on the third center contact side surface and the fourth center contact side surface.
    Type: Application
    Filed: July 31, 2019
    Publication date: January 6, 2022
    Inventors: Zhigang Zhao, Lei Li, Jinrong Yuan, Qiulian Li, Xiangqian Li