Patents by Inventor Zengqiang Xu

Zengqiang 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: 20230009595
    Abstract: A laser automatic focusing equipment for a laser engraving machine is provided. It includes a lifting mechanism, a laser assembly disposed at a lower end of a side of the lifting mechanism, and a lifting motor fixedly disposed on an upper end of the side of the lifting mechanism and is in transmission connection with the lifting mechanism. The laser assembly includes a heat sink, a laser disposed in the heat sink, a distance sensor disposed in the heat sink and on a side of the laser, and a contact device disposed in the heat sink and at a bottom of the laser. The whole focusing process is controlled by a program without human intervention, with high accuracy, no manual operation and no laser irradiation risk. It is suitable for focusing of engraving materials with different hardness and different materials by adding the contact device.
    Type: Application
    Filed: May 8, 2022
    Publication date: January 12, 2023
    Inventor: Zengqiang XU
  • Patent number: 11516591
    Abstract: The present disclosure relates to a speaker and a speaker module, and the speaker comprises: a housing and a vibration system housed within the housing, wherein the vibration system comprises a diaphragm and a voice coil, the voice coil is bonded onto a central portion of the diaphragm, and the voice coil has a lead wire; an end surface of the housing connected to a fixed portion of the diaphragm is provided thereon with a conductive portion; a portion of the lead wire located between the fixed portion and the housing is configured to expose the lead wire and form an exposed conductive end, and when the fixed portion is fixedly connected to the housing, the exposed conductive end is crimped onto the conductive portion and is electrically connected to the conductive portion.
    Type: Grant
    Filed: December 29, 2018
    Date of Patent: November 29, 2022
    Assignee: Goertek Inc.
    Inventors: Zengqiang Xu, Yong Chu
  • Publication number: 20210274290
    Abstract: The present disclosure relates to a speaker and a speaker module, and the speaker comprises: a housing and a vibration system housed within the housing, wherein the vibration system comprises a diaphragm and a voice coil, the voice coil is bonded onto a central portion of the diaphragm, and the voice coil has a lead wire; an end surface of the housing connected to a fixed portion of the diaphragm is provided thereon with a conductive portion; a portion of the lead wire located between the fixed portion and the housing is configured to expose the lead wire and form an exposed conductive end, and when the fixed portion is fixedly connected to the housing, the exposed conductive end is crimped onto the conductive portion and is electrically connected to the conductive portion.
    Type: Application
    Filed: December 29, 2018
    Publication date: September 2, 2021
    Applicant: GOERTEK INC.
    Inventors: Zengqiang Xu, Yong Chu