Patents by Inventor Guojian Qiu

Guojian Qiu 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).

  • Controller, air conditioner, and high-pressure protection circuit
    Patent number: 12264861
    Abstract: Provided is a controller, an air conditioner, and a high-pressure protection circuit. The controller includes a first rectifier unit, a power conversion unit, a high pressure switch (HPS) wiring terminal, a low-voltage control unit, and a high-voltage operating unit. An input end of the first rectifier unit is capable of being electrically connected to an input power supply. An output end of the first rectifier unit is electrically connected to an input end of the power conversion unit. An output end of the power conversion unit is electrically connected to a power supply end of the low-voltage control unit. The HPS wiring terminal is connected to the front end of the power supply end of the low-voltage control. The controller has a function of high-pressure protection.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: April 1, 2025
    Assignee: HANGZHOU LEADERWAY ELECTRONICS CO., LTD
    Inventors: Yongsong Lv, Guojian Qiu, Lusi Zhang
  • CONTROLLER, AIR CONDITIONER, AND HIGH-PRESSURE PROTECTION CIRCUIT
    Publication number: 20220381497
    Abstract: Provided is a controller, an air conditioner, and a high-pressure protection circuit. The controller includes a first rectifier unit, a power conversion unit, a high pressure switch (HPS) wiring terminal, a low-voltage control unit, and a high-voltage operating unit. An input end of the first rectifier unit is capable of being electrically connected to an input power supply. An output end of the first rectifier unit is electrically connected to an input end of the power conversion unit. An output end of the power conversion unit is electrically connected to a power supply end of the low-voltage control unit. The HPS wiring terminal is connected to the front end of the power supply end of the low-voltage control. The controller has a function of high-pressure protection.
    Type: Application
    Filed: July 29, 2022
    Publication date: December 1, 2022
    Applicant: HANGZHOU LEADERWAY ELECTRONICS CO., LTD
    Inventors: Yongsong Lv, Guojian Qiu, Lusi Zhang