Patents by Inventor Zeyuan Bai

Zeyuan Bai 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).

  • Method for cleaning air conditioner indoor unit and outdoor unit
    Patent number: 10775062
    Abstract: A method for cleaning an air conditioner indoor unit and outdoor unit includes controlling a heat exchanger to enter a self-cleaning mode, adjusting an operating frequency of an air conditioner, an opening of a throttling device, and a corresponding fan speed of the heat exchanger, and maintaining an evaporating temperature of the heat exchanger within a present range to enable a frost process on a surface of the heat exchanger. When a differential pressure of the air conditioner meets a preset condition, a four-way valve changes a direction, switching defrosting to indoor and outdoor heat exchangers. When the differential pressure does not meet the preset condition, the air conditioner is adjusted to meet the preset condition and the four-way valve direction is changed to perform a defrosting switching to the indoor and outdoor heat exchangers.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: September 15, 2020
    Assignee: Qingdao Haier Air Conditioner General Corp., Ltd.
    Inventors: Fei Wang, Hongjin Wu, Yu Fu, Mingjie Zhang, Zeyuan Bai
  • METHOD FOR CLEANING AIR CONDITIONER INDOOR UNIT AND OUTDOOR UNIT
    Publication number: 20180259208
    Abstract: A method for cleaning an air conditioner indoor unit and outdoor unit includes controlling a heat exchanger to enter a self-cleaning mode, adjusting an operating frequency of an air conditioner, an opening of a throttling device, and a corresponding fan speed of the heat exchanger, and maintaining an evaporating temperature of the heat exchanger within a present range to enable a frost process on a surface of the heat exchanger. When a differential pressure of the air conditioner meets a preset condition, a four-way valve changes a direction, switching defrosting to indoor and outdoor heat exchangers. When the differential pressure does not meet the preset condition, the air conditioner is adjusted to meet the preset condition and the four-way valve direction is changed to perform a defrosting switching to the indoor and outdoor heat exchangers.
    Type: Application
    Filed: May 11, 2018
    Publication date: September 13, 2018
    Inventors: Fei Wang, Hongjin Wu, Yu Fu, Mingjie Zhang, Zeyuan Bai