Patents by Inventor Tan LONG

Tan LONG 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: 20250132663
    Abstract: Provided are a three-phase power conversion circuit for a household electrical appliance, a household electrical appliance, and a power-on control method for a household electrical appliance. The three-phase power conversion circuit includes a three-level active PFC unit, at least two power-on units, and a control unit. The three-phase power, subsequent to being converted by the three-level active PFC unit, obtains a first DC power and a second DC power to supply power to corresponding loads. The power-on unit is arranged at input terminals of the three-level active PFC unit to buffer a device in the three-level active PFC unit when the three-level active PFC unit is powered on. A first controllable switch module and a second controllable switch module in the power-on unit and the three-level active PFC unit are controlled by the control unit to complete buffering.
    Type: Application
    Filed: December 24, 2024
    Publication date: April 24, 2025
    Applicants: FOSHAN SHUNDE MIDEA ELECTRIC SCIENCE AND TECHNOLOGY CO., LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.
    Inventors: Bin HU, Tan LONG, Hongming ZHOU, Zhaobin HUANG, Wenkai ZHANG, Xiaojun YAN, Jienan ZHANG, Dong WEI, Ran BI, Yunsong XU
  • Publication number: 20250132563
    Abstract: Provided are a method for controlling a full bus load to discharge in a household electrical appliance and related apparatuses. In the method, in response to determining that a half bus load is turned on and a full bus load is turned off, a voltage difference between a first DC power and a second DC power is determined to obtain a voltage difference. The first DC power and the second DC power are obtained by converting three-phase power through a three-level active PFC unit. Subsequent to the voltage difference between the first DC power and the second DC power being determined, a full bus load is controlled to be turned on or off based on the voltage difference to stabilize a half bus voltage in a predetermined voltage interval.
    Type: Application
    Filed: December 24, 2024
    Publication date: April 24, 2025
    Applicants: FOSHAN SHUNDE MIDEA ELECTRIC SCIENCE AND TECHNOLOGY CO., LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.
    Inventors: Bin HU, Tan LONG, Hongming ZHOU, Zhaobin HUANG, Wenkai ZHANG, Xiaojun YAN, Jienan ZHANG, Dong WEI, Ran BI, Yunsong XU
  • Publication number: 20250020295
    Abstract: Disclosed is an emergency power supply for a panel lamp, including a panel lamp, at least provided with a light board inclined surface and provided with a plurality of buckles on at least one side surface; an emergency power supply, including a power supply body, and at least one power cord, and at least one metal hose. The power supply body is detachably fixed onto the panel lamp, and the power supply body is provided with an inclined surface in fit with the light board inclined surface. The power cord is electrically connected to the power supply body and arranged in the metal hose, and the metal hose is fixedly clamped onto a corresponding buckle.
    Type: Application
    Filed: December 3, 2023
    Publication date: January 16, 2025
    Inventors: Huishi Tan, Tan Long
  • Publication number: 20240360891
    Abstract: A rim transmission mechanism to create a rotating motion in two axes perpendicular to devices for the purpose of detecting and monitoring the target. This is the mechanical mechanism that carries out the rotating transmission of two horizontal and vertical directions (azimuth) (azimuth). Half of half-spring gear. The structure includes the main components: horizontal channel clusters, teeth clusters and vertical channels. Location sensors, angular velocity sensors are arranged, designed scientifically, optimizing the layout space and mass of the structure.
    Type: Application
    Filed: January 4, 2024
    Publication date: October 31, 2024
    Applicant: VIETTEL GROUP
    Inventors: VAN TUNG NGUYEN, THI HANG LE, HOAI SON NGUYEN, XUAN BACH LUU, BAU NGUYEN, TAN LONG PHAM, MINH VIEN NGUYEN
  • Patent number: 12132388
    Abstract: A three-phase power supply conversion circuit includes rectifier, energy storage, direct-current load, and control modules. The rectifier module includes a three-phase rectifier bridge including three bridge arms connected in parallel to each other, and a bidirectional switch assembly including three bidirectional switches. One ends of the three bidirectional switches are connected to midpoints of the three bridge arms, respectively. The energy storage module is connected to a direct-current output end of the rectifier module and includes first and second capacitors connected in series to each other. Other ends of the three bidirectional switches are connected between the first and second capacitors. The control module is connected to the bidirectional switch assembly and configured to control the bidirectional switches according to phase voltages of a three-phase alternating-current power supply, to maintain a voltage between two ends of the first or second capacitor at a target voltage.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: October 29, 2024
    Assignees: CHONGQING MIDEA AIR CONDITIONING EQUIPMENT CO., LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.
    Inventors: Zhaobin Huang, Tan Long, Ming Zhao, Jianning Yang, Jinqing Xu, Xianjie Zeng, Zhaojing Huo, Xianshi Wen
  • Publication number: 20240235178
    Abstract: A control method includes, in response to detecting a target-type fault, determining, by a first control device managing a three-phase three-level power supply circuit, a control signal for instructing a first load to stop operating. The first load is connected to one of buses of the three-phase three-level power supply circuit, and the target-type fault is correlated with a second load connected to two of the buses of the three-phase three-level power supply circuit. The method further includes sending the control signal to a second control device via a target communication channel, to instruct the second control device to control the first load to stop operating.
    Type: Application
    Filed: May 7, 2022
    Publication date: July 11, 2024
    Inventors: Zhenghui HUANG, Tan LONG, Xianshi WEN, Dong WEI, Ming ZHAO
  • Publication number: 20240204656
    Abstract: A voltage control method includes obtaining two half-bus voltages at a direct current side of a three-level converter, overvoltage protection values of the two half-bus voltages, and a load voltage required by a load. One of the two half-bus voltages is configured to supply voltage to the load. The method further includes determining a voltage control strategy based on a relationship among the two half-bus voltages, the overvoltage protection values, and the load voltage. The voltage control strategy compensates for an output duty ratio of a switch of the three-level converter, such that the one of the two half-bus voltages is greater than or equal to the load voltage and each of the two half-bus voltages is smaller than or equal to a corresponding one of the overvoltage protection values. The method also includes performing voltage control on the two half-bus voltages based on the voltage control strategy.
    Type: Application
    Filed: March 25, 2022
    Publication date: June 20, 2024
    Inventors: Ming ZHAO, Zhaobin HUANG, Tan LONG, Xianshi WEN, Dong WEI, Zhenghui HUANG
  • Publication number: 20230318433
    Abstract: A three-phase power supply conversion circuit includes rectifier, energy storage, direct-current load, and control modules. The rectifier module includes a three-phase rectifier bridge including three bridge arms connected in parallel to each other, and a bidirectional switch assembly including three bidirectional switches. One ends of the three bidirectional switches are connected to midpoints of the three bridge arms, respectively. The energy storage module is connected to a direct-current output end of the rectifier module and includes first and second capacitors connected in series to each other. Other ends of the three bidirectional switches are connected between the first and second capacitors. The control module is connected to the bidirectional switch assembly and configured to control the bidirectional switches according to phase voltages of a three-phase alternating-current power supply, to maintain a voltage between two ends of the first or second capacitor at a target voltage.
    Type: Application
    Filed: September 13, 2021
    Publication date: October 5, 2023
    Inventors: Zhaobin HUANG, Tan LONG, Ming ZHAO, Jianning YANG, Jinqing XU, Xianjie ZENG, Zhaojing HUO, Xianshi WEN
  • Publication number: 20230275525
    Abstract: An electronic circuit includes a rectifier module and an energy storage module. The rectifier module includes a three-phase rectifier bridge including first, second, and third bridge arms connected in parallel to each other, and a bidirectional switch assembly including first, second, and third bidirectional switches. One ends of the first, second, and third bidirectional switches are connected to midpoints of the first, second, and third bridge arms, respectively. The energy storage module is connected to a direct-current output end of the rectifier module and includes two capacitors connected in series to each other. One of the two capacitors is connected in parallel to a direct-current load. Other ends of the first, second, and third bidirectional switches are connected between the two capacitors.
    Type: Application
    Filed: September 13, 2021
    Publication date: August 31, 2023
    Inventors: Zhaobin HUANG, Tan LONG, Ming ZHAO, Jianning YANG, Jinqing XU, Xianjie ZENG, Zhaojing HUO, Xianshi WEN