Patents by Inventor Junming Xu

Junming Xu 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: 20240186909
    Abstract: Disclosed is a soft switch control circuit and a flyback converter, comprising a primary edge part and a secondary edge part, and obtaining a trigger pulse signal according to a pre-turning on signal of a main switch transistor before the main switch transistor is turned on. The trigger pulse signal is transmitted to the secondary edge part by an isolation module to control the switch at a secondary edge circuit to conduct, to reduce source-drain voltage of the main switch circuit of the primary edge, to make the main switch transistor to turn on when the source-drain voltage is near zero voltage. The switch of the secondary edge circuit is a synchronous rectifying switch transistor or a discharge switch transistor connected at two ends of the synchronous rectifying switch transistor.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 6, 2024
    Applicant: Joulwatt Technology Co., Ltd.
    Inventors: Junming ZHANG, Xianghua JIANG, Xiangyong XU, Pitleong WONG
  • Publication number: 20240145861
    Abstract: The energy storage module of the battery pack is located in the housing, the heat insulation panel is located between the energy storage module and the housing, the heat insulation panel includes a heat insulation layer and an outer packaging layer. The outer packaging layer wraps the outside of the heat insulation layer and compresses a thickness of the elastic heat, insulation layer, and a ventilation channel is formed between the heat insulation panel and the energy storage module. The outer packaging layer is configured to release compression of the elastic heat insulation layer when the energy storage module reaches a thermal runaway temperature, and the heat insulation panel is filled between the housing and the energy storage module, thereby slowing down a speed at which heat passes through a side panel and spreads to the outside of the battery pack along the ventilation channel.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Inventors: Yunxiang Xu, Jing Zhu, Huan Zhang, Yongling Wang, Junming Zhang
  • Patent number: 11967320
    Abstract: A process of a voice control method with a cloud server and a terminal device. The voice control method includes: a terminal device receiving voice information; the terminal device querying a control instruction corresponding to the voice information from a local voice database; when the control instruction corresponding to the voice information is not queried in the local voice database, the terminal device uploading the voice information to a cloud server; the cloud server parsing the control instruction corresponding to the voice information; when the control instruction corresponding to the voice information is parsed, the cloud server sending the control instruction to the terminal device; and the terminal device receiving the control instruction, and performing a corresponding operation on the basis of control instruction.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 23, 2024
    Assignees: QINGDAO HAIER WASHING MACHINE CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Zhenxing Huang, Sheng Xu, Junming Yin, Hai Shu
  • Publication number: 20240120849
    Abstract: Disclosed is a protection circuit of a flyback converter and a control method. The protection circuit comprises: an active discharge module, for providing a discharge path between a first current terminal and a second current terminal of a switch transistor in a resonance circuit, and controlling turning-on and turning-off of the discharge path according to a discharge enable signal; in the normal work state of the flyback converter, the discharge path is disconnected, the resonance circuit works, before the flyback converter is restarted, the discharge path is turned on for a predetermined time period to release charges stored in the resonance circuit, and the resonance current after the flyback converter is restarted is reduced to the safe work current of the second switch transistor. The resonance current is discharged before the flyback converter is restarted, thus reducing the resonance current and enhancing system stability and security.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 11, 2024
    Applicant: Joulwatt Technology Co., Ltd.
    Inventors: Xianghua JIANG, Junming ZHANG, PITLEONG WONG, XIANGYONG XU
  • Publication number: 20240120831
    Abstract: Disclosed is a protection circuit of a flyback converter and a control method. The protection circuit comprises: an active discharge module, connected to at least one end of a first capacitor in a resonance circuit of the flyback converter to provide a discharge path, and controlling turning-on and turning-off of the discharge path according to the discharge enable signal; in a normal work state, the discharge path is disconnected, the first capacitor works as a resonance capacitor; before the flyback converter is restarted, the discharge path is turned on for a predetermined time period to release charges of the first capacitor, a resonance current after the flyback converter is restarted is reduced to a safe work current of the second switch transistor. Charges stored in the first capacitor can be discharged to release before the flyback converter is restarted to reduce the resonance current and enhance system stability and security.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 11, 2024
    Applicant: Joulwatt Technology Co., Ltd.
    Inventors: Xianghua JIANG, Junming ZHANG, PITLEONG WONG, XIANGYONG XU
  • Patent number: 11954083
    Abstract: The present disclosure discloses a clothing information processing method, comprises: the server receives the clothing information sent by a washing device and saves it; the server receives request information sent by an intelligent terminal; the server obtains the corresponding clothing information according to the request information and sends it to the intelligent terminal. In this disclosure, the server receives the clothing information sent by the washing device and stores the clothing information. In this way, in the whole washing cycle, even after this washing cycle, the user can obtain the clothing information from the server through the intelligent terminal, which avoids that in the prior art, after the stage of uploading clothing information by the washing device is completed, the intelligent terminal can no longer obtain clothing information.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: April 9, 2024
    Assignees: QINGDAO HAIER WASHING MACHINE CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Junming Yin, Shuai Wang, Sheng Xu
  • Patent number: 11802169
    Abstract: The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 31, 2023
    Assignee: INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF
    Inventors: Kui Wang, Jianchun Jiang, Yanyan Liu, Junming Xu, Min Wei, Linshan Wei, Ruizhen Wang
  • Publication number: 20220002446
    Abstract: The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.
    Type: Application
    Filed: August 16, 2019
    Publication date: January 6, 2022
    Applicant: INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF
    Inventors: Kui Wang, Jianchun Jiang, Yanyan Liu, Junming Xu, Min Wei, Linshan Wei, Ruizhen Wang
  • Patent number: 10581062
    Abstract: Co3O4 nanocubes as can be homogeneously assembled on a few-layer graphene sheet, such a composite as can be used in conjunction with an anode and incorporated into a high energy lithium-ion battery.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 3, 2020
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Jinsong Wu, Junming Xu, Vinayak P. Dravid
  • Publication number: 20160204416
    Abstract: Co3O4 nanocubes as can be homogeneously assembled on a few-layer graphene sheet, such a composite as can be used in conjunction with an anode and incorporated into a high energy lithium-ion battery.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 14, 2016
    Inventors: Jinsong Wu, Junming Xu, Vinayak P. Dravid