Patents by Inventor Liang ZHAN

Liang ZHAN 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: 20240039313
    Abstract: The present invention discloses a modular charging device and a cooling structure thereof. The modular charging device comprises a housing, at least one battery package socket located on the housing, and a PCB located in the housing, the at least one battery package socket being located at one or two sides of the PCB, at least one battery package being electrically connectable into the at least one battery package socket in a plug-in manner, and the battery package socket comprising a battery package insertion slot extending inwards from the housing to the PCB. A cooling structure for a modular charging device comprises an air inlet disposed at one end of a housing, an air outlet at another end, and a pathway between a first PCB and a second PCB, the fan causing an airflow to flow through the pathway.
    Type: Application
    Filed: July 17, 2023
    Publication date: February 1, 2024
    Inventors: LIANG ZHAN LAI, Qiang Wen Ye
  • Patent number: 11031906
    Abstract: An IV curve scan method for a photovoltaic module and an optimizer are provided. The optimizer receives an IV curve scan signal and controls an output voltage of the photovoltaic module corresponding to the IV curve scan signal to change from an open-circuit voltage to a preset minimum voltage according to a preset rule, while photovoltaic module connected to another optimizer can still operate normally, so that the system can operate normally. Then the optimizer uploads IV curve data of the photovoltaic module corresponding to the IV curve scan signal, to complete an IV curve scan on a single photovoltaic module.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: June 8, 2021
    Assignee: SUNGROW POWER SUPPLY CO., LTD.
    Inventors: Hua Ni, Yanfei Yu, Yunfei Zou, Zongjun Yang, Liang Zhan, Liying Xue
  • Patent number: 10075127
    Abstract: A photovoltaic rapid shutdown device and a photovoltaic system are provided. The device includes a first switch, a second switch, a bypass diode, an auxiliary power supply, a control circuit and a communication circuit. One of multiple photovoltaic modules serves as a power supplying photovoltaic module, and an output terminal of the power supplying photovoltaic module is connected to an input terminal of the auxiliary power supply. The first switch is connected in series between the power supplying photovoltaic module and an adjacent photovoltaic module. Two terminals of the second switch are connected to positive and negative output terminals of a branch formed by the multiple photovoltaic modules connected in series, respectively. A cathode of the bypass diode is connected to a low voltage terminal of the adjacent photovoltaic module.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: September 11, 2018
    Assignee: SUNGROW POWER SUPPLY CO., LTD.
    Inventors: Yunfei Zou, Yanfei Yu, Hua Ni, Zongjun Yang, Liang Zhan
  • Publication number: 20180248359
    Abstract: A photovoltaic rapid shutdown device and a photovoltaic system are provided. The device includes a first switch, a second switch, a bypass diode, an auxiliary power supply, a control circuit and a communication circuit. One of multiple photovoltaic modules serves as a power supplying photovoltaic module, and an output terminal of the power supplying photovoltaic module is connected to an input terminal of the auxiliary power supply. The first switch is connected in series between the power supplying photovoltaic module and an adjacent photovoltaic module. Two terminals of the second switch are connected to positive and negative output terminals of a branch formed by the multiple photovoltaic modules connected in series, respectively. A cathode of the bypass diode is connected to a low voltage terminal of the adjacent photovoltaic module.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 30, 2018
    Inventors: Yunfei ZOU, Yanfei YU, Hua NI, Zongjun YANG, Liang ZHAN
  • Publication number: 20180234051
    Abstract: An IV curve scan method for a photovoltaic module and an optimizer are provided. The optimizer receives an IV curve scan signal and controls an output voltage of the photovoltaic module corresponding to the IV curve scan signal to change from an open-circuit voltage to a preset minimum voltage according to a preset rule, while photovoltaic module connected to another optimizer can still operate normally, so that the system can operate normally. Then the optimizer uploads IV curve data of the photovoltaic module corresponding to the IV curve scan signal, to complete an IV curve scan on a single photovoltaic module.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 16, 2018
    Inventors: Hua NI, Yanfei YU, Yunfei ZOU, Zongjun YANG, Liang ZHAN, Liying XUE
  • Patent number: D1052855
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: December 3, 2024
    Inventor: Liang Zhan
  • Patent number: D1053515
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: December 10, 2024
    Inventor: Liang Zhan