Patents by Inventor Dongrui Qu

Dongrui Qu 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).

  • Patent number: 12199430
    Abstract: The present disclosure provides a current transformer, a method for distributing electric energy using the same, and an electric energy distribution system, and relates to the technical field of household appliances. The method includes: calculating distribution coefficients of energy required for loads according to the number of the loads and rated energy demands of the respective loads; acquiring energy demand ranges of the loads; and distributing energy to the loads according to the energy demand ranges and the distribution coefficients based on energy of a power supply end.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: January 14, 2025
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Xuefen Zhang, Zhigang Zhao, Ningning Chen, Meng Li, Dongrui Qu, Chongyang Feng, Han Liu
  • Patent number: 11879660
    Abstract: A photovoltaic air conditioner control method and apparatus and a photovoltaic air conditioner. The method includes: detecting in real time the grid-connected side inverter module temperature and the grid-connected side current of a photovoltaic air conditioner; determining the interval in which the grid-connected inverter module temperature is located and the interval in which the grid-connected side current is located; and, on the basis of the determining results, performing frequency-limiting and frequency-reduction control of the photovoltaic air conditioner.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: January 23, 2024
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Zunhui Xiao, Dongrui Qu, Xianqiao Yu, Ningning Chen
  • Patent number: 11859840
    Abstract: A photovoltaic air conditioning system startup method, a controller, and a photovoltaic air conditioning system. The photovoltaic air conditioning system starting method includes: when a photovoltaic device meets a preset power generation condition, controlling a bidirectional converter to enter an operating state; and when the bidirectional converter enters the operating state, controlling a direct current-direct current converter connected to the photovoltaic device to enter an operating state, so that the photovoltaic device provides electric energy to an air-conditioning device by means of the direct current-direct current converter.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 2, 2024
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Dongrui Qu, Ningning Chen, Wu Wen, Xianqiao Yu, Zunhui Xiao
  • Patent number: 11831151
    Abstract: The disclosure provides a photovoltaic electric appliance system and a voltage protection value control method and apparatus thereof, and a controller. The photovoltaic electric appliance system includes: a photovoltaic power generation module, an electric appliance, and a grid-connection module. Said control method comprises-: acquiring the working states of the photovoltaic power generation module, the electric appliance and the grid-connection module; and according to the working states of each, determining an operation mode of the photovoltaic electric appliance system, and setting a voltage protection range of the photovoltaic electric appliance system according to the operation mode.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 28, 2023
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Zhigang Zhao, Dongrui Qu, Chongyang Feng, Xuefen Zhang, Shiyong Jiang, Han Liu
  • Publication number: 20220243949
    Abstract: A photovoltaic air conditioner control method and apparatus and a photovoltaic air conditioner. The method includes: detecting in real time the grid-connected side inverter module temperature and the grid-connected side current of a photovoltaic air conditioner; determining the interval in which the grid-connected inverter module temperature is located and the interval in which the grid-connected side current is located; and, on the basis of the determining results, performing frequency-limiting and frequency-reduction control of the photovoltaic air conditioner.
    Type: Application
    Filed: July 7, 2020
    Publication date: August 4, 2022
    Inventors: Zunhui Xiao, Dongrui Qu, Xianqiao Yu, Ningning Chen
  • Publication number: 20220136721
    Abstract: A photovoltaic air conditioning system startup method, a controller, and a photovoltaic air conditioning system. The photovoltaic air conditioning system starting method includes: when a photovoltaic device meets a preset power generation condition, controlling a bidirectional converter to enter an operating state; and when the bidirectional converter enters the operating state, controlling a direct current-direct current converter connected to the photovoltaic device to enter an operating state, so that the photovoltaic device provides electric energy to an air-conditioning device by means of the direct current-direct current converter.
    Type: Application
    Filed: July 8, 2020
    Publication date: May 5, 2022
    Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Dongrui QU, Ningning CHEN, Wu WEN, Xianqiao YU, Zunhui XIAO
  • Publication number: 20210384721
    Abstract: The disclosure provides a photovoltaic electric appliance system and a voltage protection value control method and apparatus thereof, and a controller. The photovoltaic electric appliance system includes: a photovoltaic power generation module, an electric appliance, and a grid-connection module. Said control method comprises: acquiring the working states of the photovoltaic power generation module, the electric appliance and the grid-connection module; and according to the working states of each, determining an operation mode of the photovoltaic electric appliance system, and setting a voltage protection range of the photovoltaic electric appliance system according to the operation mode.
    Type: Application
    Filed: August 23, 2019
    Publication date: December 9, 2021
    Inventors: Zhigang Zhao, Dongrui Qu, Chongyang Feng, Xuefen Zhang, Shiyong Jiang, Han Liu
  • Publication number: 20210376607
    Abstract: The present disclosure provides a current transformer, a method for distributing electric energy using the same, and an electric energy distribution system, and relates to the technical field of household appliances. The method includes: calculating distribution coefficients of energy required for loads according to the number of the loads and rated energy demands of the respective loads; acquiring energy demand ranges of the loads; and distributing energy to the loads according to the energy demand ranges and the distribution coefficients based on energy of a power supply end.
    Type: Application
    Filed: September 11, 2019
    Publication date: December 2, 2021
    Inventors: Xuefen Zhang, Zhigang Zhao, Ningning Chen, Meng Li, Dongrui Qu, Chongyang Feng, Han Liu