Patents by Inventor Chunfa WANG

Chunfa WANG 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: 12341209
    Abstract: A casing includes a body for accommodating a battery management system and a mounting member fixed on the body. The mounting member includes a first end and a second end at opposite locations. The first end is provided with an elastic member. The second end is provided with a clamping portion. The clamping portion is configured to be clamped to an assembly bracket. The elastic member is configured to generate a rebound force under limitation of the assembly bracket, so as to fix the mounting member at a location on the assembly bracket.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: June 24, 2025
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Jiajun Wang, Chunfa Wang, Yanming Zhao
  • Publication number: 20250070626
    Abstract: The present application provides a motor control device, a drive device and an electric apparatus. The motor control device comprises a case in which a motor inverter, a heating power module and an absorption capacitor are housed; each inverter power module in the motor inverter is connected to a motor multiphase interface; the heating power module is connected to a motor neutral interface; a positive input end of the heating power module is connected to a first battery-powered positive interface, and a negative input end is connected to a first battery-powered negative interface; two ends of the absorption capacitor are respectively connected to a high-voltage positive terminal and a high-voltage negative terminal of the heating power module; and a second battery-powered positive/negative interface is connected to a positive/negative input end of the motor inverter.
    Type: Application
    Filed: November 14, 2024
    Publication date: February 27, 2025
    Inventors: Tian Liu, Yuanmiao Zhao, Yu Yan, Chunfa Wang
  • Publication number: 20250038696
    Abstract: The present application provides a motor control device, a drive device and an electric apparatus. The motor control device comprises a case in which a motor inverter and a heating power module are housed, a motor neutral interface, a motor multiphase interface and a battery-powered positive/negative interface being provided on a housing of the case; an output end of each inverter power module of the motor inverter is respectively connected to the motor multiphase interface through an output terminal; an output end of the heating power module is connected to the motor neutral interface through a heating output terminal; a positive input end of the heating power module is connected to the battery-powered positive interface through a high-voltage positive terminal; and a negative input end of the heating power module is connected to the battery-powered negative interface through a high-voltage negative terminal.
    Type: Application
    Filed: October 13, 2024
    Publication date: January 30, 2025
    Inventors: Tian Liu, Yuanmiao Zhao, Yu Yan, Chunfa Wang, Zhanliang Li, Yifei Huang
  • Publication number: 20250038697
    Abstract: This application discloses a motor controller, a power system, and an electric apparatus. The motor controller includes a box, a first power device, and a plurality of second power devices. The box is provided with a liquid coolant flow channel, and a liquid inlet and a liquid outlet that are in communication with the liquid coolant flow channel. The first power device is disposed in the box and on a side close to the liquid inlet. The plurality of second power devices are disposed in the box and on a side close to the liquid outlet. The second power devices have a smaller heating power than the first power device. A liquid coolant in the liquid coolant flow channel is capable of separately exchanging heat with the first power device and the plurality of second power devices.
    Type: Application
    Filed: October 13, 2024
    Publication date: January 30, 2025
    Inventors: Tian Liu, Yuanmiao Zhao, Yu Yan, Chunfa Wang, Zhanliang Li, Yifei Huang
  • Publication number: 20230384395
    Abstract: System and method for testing power conversion devices are provided. A power supply grid is connected to an AC terminal of a first power conversion device, the power supply grid is also connected to an AC terminal of the second power conversion device, and a DC terminal of the first power conversion device is connected to a DC terminal of the second power conversion device. In this way, a test loop is formed by the power supply grid, the first power conversion device and the second power conversion device. In this test loop, the first power conversion device and the second power conversion device act as a load and a power source, so no additional DC power supply and load are required during the test.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 30, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chunfa WANG, Yanming ZHAO, Zhimin DAN, Yu YAN, Yuan YAO, Xiao WANG, Xiyang ZUO
  • Publication number: 20230318109
    Abstract: A casing includes a body for accommodating a battery management system and a mounting member fixed on the body. The mounting member includes a first end and a second end at opposite locations. The first end is provided with an elastic member. The second end is provided with a clamping portion. The clamping portion is configured to be clamped to an assembly bracket. The elastic member is configured to generate a rebound force under limitation of the assembly bracket, so as to fix the mounting member at a location on the assembly bracket.
    Type: Application
    Filed: June 6, 2023
    Publication date: October 5, 2023
    Inventors: Jiajun WANG, Chunfa WANG, Yanming ZHAO