Patents by Inventor Yongfu CHENG

Yongfu CHENG 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: 11397010
    Abstract: The present disclosure discloses a heating adjustment method and device, which belongs to the field of thermal system management technologies. The method includes: calculating an average indoor temperature of a cell, wherein the average indoor temperature of the cell is an average value of a real-time indoor temperature of each dwelling unit in the cell; judging whether the average indoor temperature is within a standard temperature range; and adjusting at least one of a water pump flow and a water temperature supplied to the cell when the average indoor temperature is not within the standard temperature range. When the average indoor temperature of the current cell is abnormal, the temperature of the cell is restored to a standard value by adjusting the water pump flow and the water temperature for heating, thus the response speed is fast, the reliability is high, the user experience is improved and energy is saved.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: July 26, 2022
    Assignee: QINGDAO HAIER AIR CONDITIONER GENERAL CORP. LTD.
    Inventors: Shifang Song, Li Guo, Yongfu Cheng, Dong Chen
  • Patent number: 11391477
    Abstract: A method and a device for controlling self-cleaning of an air conditioner are provided. The method comprises: acquiring operation duration, operation status parameters and air quality parameters of an air conditioner; determining an equivalent operation duration for the air conditioner according to the operation duration, operation status parameters and air quality parameters of the air conditioner; and controlling the air conditioner to perform self-cleaning when the equivalent operation duration for the air conditioner is greater than a cleaning duration threshold value. The method may prevent a problem of delayed cleaning or premature cleaning of the air conditioner which is caused by pre-estimating a self-cleaning frequency merely according to one variable which is a booting duration.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: July 19, 2022
    Assignee: CHONGQING HAIER AIR CONDITIONER CORP., LTD.
    Inventors: Dong Chen, Yongfu Cheng, Shifang Song
  • Patent number: 11181287
    Abstract: A heating mode control method of an air conditioner, comprises: obtaining an indoor temperature and calculating the difference between the indoor temperature and an indoor target temperature to obtain an indoor temperature difference as air conditioner running at heating mode; performing a coil temperature control process as the indoor temperature difference in a set indoor temperature difference range, wherein the coil temperature control process including: obtaining an indoor coil temperature and controlling the frequency of the compressor according to the indoor coil temperature and a coil target temperature. The application of the method can achieve the purpose of improving the heating effect by increasing the outlet air temperature, thus improving the heating performance of an air-conditioner.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 23, 2021
    Assignee: QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
    Inventors: Beibei Xu, Juke Liu, Lin Ma, Jian Miao, Xiangjun Li, Jinlong Liu, Huihua Wang, Yongfu Cheng
  • Publication number: 20210356156
    Abstract: Provided is an air conditioner compressor operating power detecting method comprises: detecting a compressor driving power supply frequency as the air conditioner running; calculating a drive power supply period T based on the detected drive power supply frequency f wherein the drive power supply period T=1/f; the driving power supply period T is equally divided into n time segments; and in each time segment, respectively sampling a compressor drive voltage, respectively sampling a compressor drive current in each time segment; calculating a voltage reference value U?; calculating a current reference value I?; obtaining a plurality of voltage reference values U?; obtaining a plurality of current reference values I?; calculating a mean voltage reference value Umean, calculating a mean current reference value Imean, calculating a compressor operating power Pcompressor. Another aspect is provided an air conditioner. The invention has advantages of being accurate in calculation.
    Type: Application
    Filed: June 25, 2018
    Publication date: November 18, 2021
    Inventors: LIN MA, YUNTAO LIU, GUOJING XU, JUKE LIU, YONGFU CHENG
  • Patent number: 11175334
    Abstract: The present disclosure discloses a method for counting faults of household appliances and belongs to the field of fault processing of household appliances. The method includes: acquiring operating parameter information of a plurality of household appliances, where the plurality of household appliances being equipped with preset parts; acquiring fault information of at least one faulty household appliance in the plurality of household appliances, where the fault information includes fault codes; and determining a fault of the faulty household appliance and a fault rate of the plurality of household appliances corresponding to the fault according to the operating parameter information and the fault codes. In addition, the present disclosure further provides a device for counting faults of household appliances. The method or the device according to the present disclosure can be adopted to count the fault rates of the plurality of household appliances equipped with preset parts.
    Type: Grant
    Filed: April 28, 2018
    Date of Patent: November 16, 2021
    Assignee: Qingdao Haier Air Conditioner General Corp., Ltd.
    Inventors: Dong Chen, Yongfu Cheng, Li Guo, Pengan Li, Xiaofei Zhang
  • Patent number: 10890347
    Abstract: Provided are a method and device for controlling an air conditioner. The method comprises: acquiring a current indoor temperature in an air conditioner control region and an initial user-set temperature of the air conditioner; and adjusting the initial user-set temperature when an indoor temperature is detected to meet a preset condition, energy consumption corresponding to the adjusted set temperature being lower than energy consumption corresponding to the initial user-set temperature. The method reduces power consumption of the air conditioner while ensuring that the temperature of the air conditioner is basically in line with expectations.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: January 12, 2021
    Assignee: Qingdao Haier Air Conditioner General Corp., Ltd.
    Inventors: Shifang Song, Li Guo, Yongfu Cheng
  • Publication number: 20200158350
    Abstract: The present disclosure discloses a heating adjustment method and device, which belongs to the field of thermal system management technologies. The method includes: calculating an average indoor temperature of a cell, wherein the average indoor temperature of the cell is an average value of a real-time indoor temperature of each dwelling unit in the cell; judging whether the average indoor temperature is within a standard temperature range; and adjusting at least one of a water pump flow and a water temperature supplied to the cell when the average indoor temperature is not within the standard temperature range. When the average indoor temperature of the current cell is abnormal, the temperature of the cell is restored to a standard value by adjusting the water pump flow and the water temperature for heating, thus the response speed is fast, the reliability is high, the user experience is improved and energy is saved.
    Type: Application
    Filed: March 2, 2018
    Publication date: May 21, 2020
    Inventors: Shifang Song, Li Guo, Yongfu Cheng, Dong Chen
  • Publication number: 20200154340
    Abstract: Disclosed in the present disclosure are a network configuration method for home appliance, a home appliance, and a user terminal, belonging to the field of wireless network technologies. The method comprises: sending configuration information of a wireless AP; where the configuration information carries home appliance information and MAC information. With the method, the home appliance and user terminal disclosed herein, by a SSID carrying the home appliance information and MAC information required in a network configuration process for home appliance, the home appliance may transmit the home appliance information and MAC information to the user terminal by carrying only SSID when sending a network configuration broadcast message, instead of carrying the home appliance information and MAC information, as two separate parameters, in the network configuration broadcast message.
    Type: Application
    Filed: April 28, 2018
    Publication date: May 14, 2020
    Inventors: Dong Chen, Yongfu Cheng, Xiaofei Zhang, Pengan Li
  • Publication number: 20190360710
    Abstract: Provided are a method and device for controlling an air conditioner. The method comprises: acquiring a current indoor temperature in an air conditioner control region and an initial user-set temperature of the air conditioner; and adjusting the initial user-set temperature when an indoor temperature is detected to meet a preset condition, energy consumption corresponding to the adjusted set temperature being lower than energy consumption corresponding to the initial user-set temperature. The method reduces power consumption of the air conditioner while ensuring that the temperature of the air conditioner is basically in line with expectations.
    Type: Application
    Filed: March 2, 2018
    Publication date: November 28, 2019
    Inventors: Shifang Song, Li Guo, Yongfu Cheng
  • Publication number: 20190360709
    Abstract: A method and a device for controlling self-cleaning of an air conditioner are provided. The method comprises: acquiring operation duration, operation status parameters and air quality parameters of an air conditioner; determining an equivalent operation duration for the air conditioner according to the operation duration, operation status parameters and air quality parameters of the air conditioner; and controlling the air conditioner to perform self-cleaning when the equivalent operation duration for the air conditioner is greater than a cleaning duration threshold value. The method may prevent a problem of delayed cleaning or premature cleaning of the air conditioner which is caused by pre-estimating a self-cleaning frequency merely according to one variable which is a booting duration.
    Type: Application
    Filed: March 2, 2018
    Publication date: November 28, 2019
    Inventors: Dong Chen, Yongfu Cheng, Shifang Song
  • Publication number: 20190323717
    Abstract: A heating mode control method of an air conditioner, comprises: obtaining an indoor temperature and calculating the difference between the indoor temperature and an indoor target temperature to obtain an indoor temperature difference as air conditioner running at heating mode; performing a coil temperature control process as the indoor temperature difference in a set indoor temperature difference range, wherein the coil temperature control process including: obtaining an indoor coil temperature and controlling the frequency of the compressor according to the indoor coil temperature and a coil target temperature. The application of the method can achieve the purpose of improving the heating effect by increasing the outlet air temperature, thus improving the heating performance of an air-conditioner.
    Type: Application
    Filed: May 26, 2017
    Publication date: October 24, 2019
    Inventors: Beibei XU, Juke LIU, Lin MA, Jian MIAO, Xiangjun LI, Jinlong LIU, Huihua WANG, Yongfu CHENG
  • Publication number: 20190324078
    Abstract: The present disclosure discloses a method for counting faults of household appliances and belongs to the field of fault processing of household appliances. The method includes: acquiring operating parameter information of a plurality of household appliances, where the plurality of household appliances being equipped with preset parts; acquiring fault information of at least one faulty household appliance in the plurality of household appliances, where the fault information includes fault codes; and determining a fault of the faulty household appliance and a fault rate of the plurality of household appliances corresponding to the fault according to the operating parameter information and the fault codes. In addition, the present disclosure further provides a device for counting faults of household appliances. The method or the device according to the present disclosure can be adopted to count the fault rates of the plurality of household appliances equipped with preset parts.
    Type: Application
    Filed: April 28, 2018
    Publication date: October 24, 2019
    Inventors: Dong Chen, Yongfu Cheng, Li Guo, Pengan Li, Xiaofei Zhang
  • Publication number: 20190316797
    Abstract: An air conditioner control method includes: obtaining a current ambient temperature when the air conditioner is being powered on, and selecting a current operational parameter corresponding to the current ambient temperature from stored optimal operational parameters which are paired with historical ambient temperatures; performing a control process on the air conditioner according to the current operational parameter; wherein a one-to-one correspondence between the historical ambient temperatures and the optimal operational parameters obtained by a process including: obtaining a continuous running time since this start, how many times operational parameters being modified since this start and a ambient temperature since this start as receiving a power-off signal; obtaining an allowed modification times of operational parameters during the running duration, which corresponds to the continuous running time since this start, if the times of the operational parameters being modified obtained is not greater than
    Type: Application
    Filed: March 5, 2018
    Publication date: October 17, 2019
    Inventors: Keqiang XIAO, BeiBei XU, Li GUO, Deliang REN, Juke LIU, Yongfu CHENG