Patents by Inventor Lizhi SU

Lizhi 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).

  • Air conditioner current loop communication circuit and air conditioner
    Patent number: 11378294
    Abstract: An air conditioner current loop communication circuit includes an indoor unit current loop communication circuit and an outdoor unit current loop communication circuit connected to each other via a communication connection wire and an AC power connection wire to form a current loop communication loop, an indoor microcontroller unit (MCU) and an outdoor MCU configured to communicate with each other through the current loop communication loop, and a switching power supply circuit connected in series to the communication connection wire or the AC power connection wire and configured to output a DC power to the current loop communication loop.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: July 5, 2022
    Assignees: GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Lizhi Su, Zhaojing Huo
  • Air Conditioner Current Loop Communication Circuit And Air Conditioner
    Publication number: 20200158364
    Abstract: An air conditioner current loop communication circuit includes an indoor unit current loop communication circuit and an outdoor unit current loop communication circuit connected to each other via a communication connection wire and an AC power connection wire to form a current loop communication loop, an indoor microcontroller unit (MCU) and an outdoor MCU configured to communicate with each other through the current loop communication loop, and a switching power supply circuit connected in series to the communication connection wire or the AC power connection wire and configured to output a DC power to the current loop communication loop.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Lizhi SU, Zhaojing HUO