Patents by Inventor Hongjian Hu

Hongjian Hu 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).

  • Patent number: 10674272
    Abstract: Provided is a speaker, including a holder, a vibration unit and a magnetic circuit unit, and a holder pad. The vibration unit includes a first diaphragm, a voice coil configured to drive the first diaphragm to vibrate and emit sound, and a flexible circuit board. The holder includes a bottom surface facing away from the first diaphragm, and the flexible circuit board is fixed to the bottom surface. The holder pad is arranged correspondingly to the flexible circuit board and sandwiched between the bottom surface and the flexible circuit board. The holder pad includes a first pad electrically connected to the flexible circuit board, a second pad exposed out of the holder, and a connection portion connecting the first pad with the second pad. The first pad is electrically conducted with the second pad, and the second pad is connected to an external circuit.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 2, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hongjian Hu, Shuai Li, Min Su
  • Publication number: 20200053469
    Abstract: A speaker includes a frame, and a vibration system and a magnetic circuit system that are fixed on the frame. The vibration system includes a first vibration diaphragm fixed to the frame, a voice coil disposed on a side of the first vibration diaphragm and configured to drive the first vibration diaphragm to vibrate to produce sound, and an elastic support part for the elastic support coil. The elastic support part includes a flexible printed circuit board connecting the voice coil to an external circuit.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: Hongjian Hu, Min Su
  • Publication number: 20200045435
    Abstract: The present disclosure relates to the field of sound production, and provides a diaphragm including a dome and a suspension surrounding the dome. The dome includes a first surface fixedly connected to the suspension, and a second surface disposed opposite to the first surface and facing away from the suspension. The dome is provided with a through hole in communication with the first surface and the second surface, and the through hole is adjacent to edges of the dome but does not reach the edges of the dome. The present disclosure further provides a speaker including the diaphragm. The diaphragm and the speaker according to the present disclosure have the advantages of ensuring the strength of the dome while ensuring the leakage of the glue inside the speaker.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Hongjian Hu, Shuai Li, Min Su
  • Publication number: 20200045454
    Abstract: The present disclosure relates to a voice coil, a method for winding the voice coil, and a speaker having the voice coil. The voice-coil winding is wound from an inner side to an outer side of the voice coil to form an N-layer structure. Each layer is wound to form a multi-coil structure. A winding switching portion is disposed between at least one group of neighboring two layers. Two terminals of the winding switching portion are respectively located at the top and the bottom of the voice coil. One terminal of the winding switching portion is connected to a winding ending terminal of an inner side one of the neighboring two layers, and the other terminal of the winding switching portion is connected to a winding starting terminal of the outer side one of the neighboring two layers.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 6, 2020
    Inventors: Hongjian Hu, Min Su, Shuai Li
  • Publication number: 20200045432
    Abstract: A speaker includes a holder and a vibration unit and a magnetic circuit unit fixed and held at the holder. The vibration unit includes: a first diaphragm and an elastic support located at an end of the voice coil facing away from the first diaphragm and elastically supporting the voice coil. The elastic support includes a flexible circuit board and a second diaphragm fixed and held at one side of the flexible circuit board facing away from the voice coil. The flexible circuit board is sandwiched between the voice coil and the second diaphragm and includes an upper surface fixed to the voice coil and a lower surface opposite to the upper surface. The second diaphragm is fixed to the lower surface by a binder, and the lower surface is recessed towards the upper surface to form a binder accommodation groove.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Hongjian Hu, Shuai Li, Min Su
  • Publication number: 20200045459
    Abstract: The present disclosure provides a speaker assembly. The speaker assembly includes: a frame, a magnetic circuit system, a vibration system, and a flexible circuit board. The flexible circuit board includes a first mounting portion, a second mounting portion spaced from the first mounting portion for being fixed to the frame, and a pair of elastic arms. Each elastic arm includes a first fixing end connected to the first mounting portion, a first connecting arm extending from the first fixing portion, a second fixing end connected to the second mounting portion, a second connecting arm extending from the second fixing end, and a connecting portion connecting the first connecting arm to the second connecting arm. The two connecting portions of the two elastic arms are connected with each other at the corresponding portions.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Hongjian Hu, Siyuan Ni
  • Publication number: 20200045433
    Abstract: Provided is a speaker, including a holder, a vibration unit and a magnetic circuit unit, and a holder pad. The vibration unit includes a first diaphragm, a voice coil configured to drive the first diaphragm to vibrate and emit sound, and a flexible circuit board. The holder includes a bottom surface facing away from the first diaphragm, and the flexible circuit board is fixed to the bottom surface. The holder pad is arranged correspondingly to the flexible circuit board and sandwiched between the bottom surface and the flexible circuit board. The holder pad includes a first pad electrically connected to the flexible circuit board, a second pad exposed out of the holder, and a connection portion connecting the first pad with the second pad. The first pad is electrically conducted with the second pad, and the second pad is connected to an external circuit.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Hongjian Hu, Shuai Li, Min Su
  • Publication number: 20200045406
    Abstract: A speaker as disclosed by the present invention includes a vibration system and a magnetic circuit system located below the vibration system. The vibration system includes a diaphragm and a voice coil for driving the diaphragm to vibrate. The magnetic circuit system includes a magnet and a bottom wall for carrying the magnet. The speaker further includes a damping layer positioned on the bottom wall right below the voice coil.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Hongjian Hu, Shuai Li