Patents by Inventor Benhai Yuan

Benhai Yuan 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).

  • Publication number: 20210167990
    Abstract: A relay device and a multi-split control system that achieve reliable communication between an outdoor air conditioning unit and multiple indoor units under the condition that the length of a communication bus is limited. The system expands the communication distance by a cascade path formed by a plurality of relay devices. The cascade path transmits control signals sent by a master control device/a specific slave control device (i.e. a slave control device communicating with the master control device or certain relay device) to corresponding slave control devices one by one, and the corresponding slave control devices transmit the signals to the master control device/specific slave control device according to a response signal fed back by the control signal, where the relay devices may respectively communicate with a source node device and a destination node device on the basis of the master-slave type communication mode.
    Type: Application
    Filed: January 21, 2019
    Publication date: June 3, 2021
    Applicants: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Defang GUO, Benhai YUAN, Ruigang ZHANG, Bin SHI, Baitian ZHUO, Shaojiang CHENG, Jun WANG
  • Publication number: 20190368761
    Abstract: Embodiments of the present disclosure provide a protection circuit and an air conditioner, which are applied to the field of air conditioner technologies and used to protect an indoor unit. The protection circuit provided by the embodiments of the present disclosure includes: a positive temperature coefficient thermistor; a signal input terminal; and a communication module; wherein a first end of the positive temperature coefficient thermistor is connected to the signal input terminal, and a second end of the positive temperature coefficient thermistor is connected to the communication module.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 5, 2019
    Inventors: Shaojiang Cheng, Jun Wang, Benhai Yuan, Bin Shi