Patents by Inventor Guoqiang Chai

Guoqiang Chai 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: 12294847
    Abstract: Disclosed are a tweeter and an automobile audio system. The tweeter comprises: a bracket; a diaphragm comprising a top portion and an edge ring; a magnetic motor system; and a voice coil. A first cavity is formed between the top portion of the diaphragm, an inner wall of the voice coil, and the magnetic motor system. The bracket has an annular inner flange and an annular outer flange, the edge ring of the diaphragm is connected to the outer flange of the bracket, and the magnetic motor system is connected to the inner flange of the bracket, so that a second cavity is formed between the edge ring of the diaphragm, an outer wall of the voice coil, and the bracket. A through hole is opened on the voice coil, and the first cavity is in communication with the second cavity by the through hole.
    Type: Grant
    Filed: April 25, 2021
    Date of Patent: May 6, 2025
    Assignee: SUZHOU SONAVOX ELECT/RONICS CO., LTD.
    Inventors: Yuewu Shen, Guoqiang Chai, Yuping Xie, Peng Gao, Bo Gu
  • Publication number: 20240373185
    Abstract: Disclosed are a system and method for verifying a power amplifier of a vehicular audio system. The system includes: a TDM converter for converting an audio signal into a TDM signal; an audio signal processor for receiving the TDM signal and generating and outputting a test signal for transmitting to the power amplifier, the audio signal processor having N audio channels, N>1; a channel configurator having M configuration units, M?N, each of the audio channels corresponding to one of the configuration units, and each of the configuration units having a selected state and a non-selected state; and a controller for determining that each of the configuration units is in the selected state or non-selected state and controlling the audio signal processor to place the TDM signal in audio channel(s) corresponding to configuration unit(s) in the selected state.
    Type: Application
    Filed: December 27, 2021
    Publication date: November 7, 2024
    Inventors: Yongshuang XU, Xianzhi PENG, Hongying FENG, Guoqiang CHAI
  • Patent number: 11962987
    Abstract: The present disclosure relates to a magnetic circuit of a loudspeaker and a loudspeaker, which can improve the non-linearity of magnetic permeability, thereby reducing the distortion of the loudspeaker. A magnetic circuit comprises a T-yoke with a base and a columnar portion protruding upward from the base, a magnetic steel arranged on the base, and a front sheet arranged on the magnetic steel, wherein the magnetic steel and the front sheet are arranged around a periphery of the columnar portion, and a short-circuit ring is arranged on an inner side of the magnetic steel and/or the front sheet. A first short-circuit ring is provided between the inner wall of the magnetic steel and the outer wall of the columnar portion, and a second short-circuit ring is provided on the inner wall of the front sheet.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: April 16, 2024
    Assignee: Suzhou Sonavox Electronics Co., Ltd.
    Inventors: Yuewu Shen, Shenggang Tao, Bo Gu, Xiaoqing Wang, Guoqiang Chai
  • Patent number: 11950072
    Abstract: A mid-range loudspeaker, including a frame, a diaphragm arranged on the frame, a magnetic circuit system arranged on the frame, and a voice coil connected to the diaphragm. The diaphragm includes a honeycomb plate having a front surface and a back surface. Covering films respectively cover the front surface and the back surface of the honeycomb plate. The honeycomb plate is provided with a plurality of holes.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: April 2, 2024
    Assignee: Suzhou Sonavox Electronics Co., Ltd.
    Inventors: Guoqiang Chai, Yuewu Shen, Bo Gu
  • Publication number: 20240098402
    Abstract: Discloses are a loudspeaker and an audio system. The loudspeaker includes a frame, a diaphragm for vibrating to produce sound and arranged on the frame, a voice coil for driving the diaphragm to vibrate, a magnetic circuit for driving the voice coil to vibrate, and an annular member arranged at an upper end portion of the voice coil and connected to the diaphragm. The magnetic circuit is arranged on the frame, and the magnetic circuit is provided with a magnetic gap for a lower end portion of the voice coil to insert in. The loudspeaker can achieve more prominent low frequency at a low cost during working, without overlap of frequency response when working together with a tweeter.
    Type: Application
    Filed: July 1, 2021
    Publication date: March 21, 2024
    Inventors: Peng GAO, Guoqiang CHAI
  • Publication number: 20240031731
    Abstract: The present disclosure relates to a vehicle-mounted woofer device and a design method therefor. The vehicle-mounted woofer device comprises a box body and a woofer disposed in the box body. The woofer comprises a cone. The cone has a front surface facing the interior of a cabin and a rear surface opposite to the front surface. A cavity is formed between the rear surface of the cone and the box body. A main waveguide for communicating the cavity with the outside is disposed in the box body. A secondary waveguide is further disposed in the box body. The main waveguide and the secondary waveguide are each provided with an inlet in communication with the cavity. The main waveguide is provided with an outlet for communicating with the outside of the cabin, and the secondary waveguide is provided with an outlet for communicating with the outside or inside of the cabin.
    Type: Application
    Filed: July 5, 2021
    Publication date: January 25, 2024
    Inventors: Xiafeng Xue, Guoqiang Chai
  • Publication number: 20240015431
    Abstract: A coaxial loudspeaker with a horn and a shape optimization method therefor are provided. The coaxial loudspeaker includes: a woofer unit; a tweeter unit; and a horn having an inner cavity, an open upper end and an open lower end. The tweeter unit comprises a high-pitch cone, the horn surrounds the high-pitch cone, a lower end portion of the horn is connected to the tweeter unit, and an upper end portion of the horn has the largest inner diameter.
    Type: Application
    Filed: July 5, 2021
    Publication date: January 11, 2024
    Inventors: Mingwei LU, Guoqiang CHAI, Renfang XU, Xiafeng XUE
  • Patent number: 11849277
    Abstract: A loudspeaker system, having a good low-frequency response without a large box and effectively improving the efficiency of the loudspeaker system, so as to increase the output sound pressure level of the system, comprises a box and a plurality of loudspeakers arranged in the box and connected in parallel with each other, wherein each of the loudspeakers comprises a frame, a diaphragm arranged on the frame, and a voice coil for driving a vibration of the diaphragm; front surfaces of the diaphragms of the loudspeakers are arranged to face each other; a sound cavity is formed among the front surfaces of the diaphragms, and the sound cavity is in communication with the outside of the box; and each of the frames is located between a rear surface of its corresponding diaphragm and an inner wall of the box.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: December 19, 2023
    Assignee: SUZHOU SONAVOX ELECTRONICS CO., LTD.
    Inventors: Yuewu Shen, Shenggang Tao, Jianfeng Tang, Xiaoqing Wang, Guoqiang Chai
  • Publication number: 20230179924
    Abstract: Disclosed are a tweeter and an automobile audio system. The tweeter comprises: a bracket; a diaphragm comprising a top portion and an edge ring; a magnetic motor system; and a voice coil. A first cavity is formed between the top portion of the diaphragm, an inner wall of the voice coil, and the magnetic motor system. The bracket has an annular inner flange and an annular outer flange, the edge ring of the diaphragm is connected to the outer flange of the bracket, and the magnetic motor system is connected to the inner flange of the bracket, so that a second cavity is formed between the edge ring of the diaphragm, an outer wall of the voice coil, and the bracket. A through hole is opened on the voice coil, and the first cavity is in communication with the second cavity by the through hole.
    Type: Application
    Filed: April 25, 2021
    Publication date: June 8, 2023
    Inventors: Yuewu SHEN, Guoqiang CHAI, Yuping XIE, Peng GAO, Bo GU
  • Publication number: 20230138715
    Abstract: A loudspeaker system, having a good low-frequency response without a large box and effectively improving the efficiency of the loudspeaker system, so as to increase the output sound pressure level of the system, comprises a box and a plurality of loudspeakers arranged in the box and connected in parallel with each other, wherein each of the loudspeakers comprises a frame, a diaphragm arranged on the frame, and a voice coil for driving a vibration of the diaphragm; front surfaces of the diaphragms of the loudspeakers are arranged to face each other; a sound cavity is formed among the front surfaces of the diaphragms, and the sound cavity is in communication with the outside of the box; and each of the frames is located between a rear surface of its corresponding diaphragm and an inner wall of the box.
    Type: Application
    Filed: October 15, 2019
    Publication date: May 4, 2023
    Inventors: Yuewu SHEN, Shenggang TAO, Jianfeng TANG, Xiaoqing WANG, Guoqiang CHAI
  • Publication number: 20220232325
    Abstract: The present disclosure relates to a magnetic circuit of a loudspeaker and a loudspeaker, which can improve the non-linearity of magnetic permeability, thereby reducing the distortion of the loudspeaker. A magnetic circuit comprises a T-yoke with a base and a columnar portion protruding upward from the base, a magnetic steel arranged on the base, and a front sheet arranged on the magnetic steel, wherein the magnetic steel and the front sheet are arranged around a periphery of the columnar portion, and a short-circuit ring is arranged on an inner side of the magnetic steel and/or the front sheet. A first short-circuit ring is provided between the inner wall of the magnetic steel and the outer wall of the columnar portion, and a second short-circuit ring is provided on the inner wall of the front sheet.
    Type: Application
    Filed: October 10, 2019
    Publication date: July 21, 2022
    Inventors: Yuewu SHEN, Shenggang TAO, Bo GU, Xiaoqing WANG, Guoqiang CHAI
  • Publication number: 20220150639
    Abstract: Disclosed is a mid-range speaker. The operating range of the mid-range speaker can extend to 20 KHz, and the speaker has an improved high-frequency directivity. A mid-range speaker, comprising a basket, a diaphragm arranged on the basket, a magnetic circuit system arranged on the basket, and a voice coil connected to the diaphragm, wherein the diaphragm comprises a cellular board having a front face and a back face, and covering films respectively covering the front face and the back face of the cellular board; and the cellular board is provided with a plurality of holes.
    Type: Application
    Filed: October 17, 2019
    Publication date: May 12, 2022
    Inventors: Guoqiang CHAI, Yuewu SHEN, Bo GU
  • Patent number: 11312530
    Abstract: A speaker packaging device. The speaker packaging device comprises a base plate for supporting a plurality of speakers. The speaker packaging device also comprises a series of transverse baffles and a series of pairs of longitudinal baffles. The transverse baffles and the longitudinal baffles interlock over the base plate, forming a matrix of individual cells, or baffle units. Notches are preserved along each longitudinal baffle for accommodating the outer edges of the respective speakers within each baffle unit. In addition, a gap is preserved between adjacent baffle units to further accommodate the outer edges of the respective speakers. The notches are staggered along adjacent baffle units to conserve space.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: April 26, 2022
    Assignee: Suzhou Sonavox Electronics Co., Ltd.
    Inventors: Yu Wang, Xiaoping Gu, Yuezhen Li, Xiaoqing Wang, Guoqiang Chai
  • Patent number: 11290822
    Abstract: The present disclosure relates to a high-pitched loudspeaker, which widens the starting frequency of the high-pitched loudspeaker, and the high-pitched loudspeaker has a smoother intermediate frequency curve and less distortion. A high-pitched loudspeaker comprises a magnetic circuit system, a voice coil, and a diaphragm connected to the voice coil, wherein a first cavity is formed between the magnetic circuit system and the voice coil and the diaphragm, the high-pitched loudspeaker further comprises a back cover, the magnetic circuit system is arranged between the diaphragm and the back cover, and a second cavity is formed between the back cover and the magnetic circuit system, a through-hole is opened on the magnetic circuit system which communicates the first cavity and the second cavity to constitute an air gap cavity of the high-pitched loudspeaker.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 29, 2022
    Assignee: SUZHOU SONAVOX ELECTRONICS CO., LTD
    Inventors: Peng Gao, Guoqiang Chai, Jie Chen, Yuping Xie, Jianming Zhou
  • Patent number: 11279278
    Abstract: A pedestrian warning device, comprising a warning device body having a cavity and an open end portion, and a sound-generating device mounted inside the cavity, wherein the pedestrian warning device further comprises a grille cover arranged on the end portion of the warning device body; the grille cover comprises at least two grille layers spaced at intervals from the inside to the outside, each of the grille layers comprising a plurality of crossbeams, the crossbeams being arranged at intervals so as to form gaps to enable gas to flow between adjacent crossbeams, and wherein a width of the gaps is not greater than a width of the crossbeams, and the crossbeams of adjacent grille layers are interleaved with each other. The grille cover can protect internal component of the pedestrian warning device and will not affect the performance of the pedestrian warning device.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: March 22, 2022
    Assignee: Suzhou Sonavox Electronics Co., Ltd.
    Inventors: Xiafeng Xue, Jianming Zhou, Guoqiang Chai, Shenggang Tao, Kaihua Qian
  • Publication number: 20220005345
    Abstract: The present disclosure relates to a pedestrian alert device for an electric vehicle, comprising an accelerator pedal mechanism, a controller, and a sound producing mechanism. The controller is electrically connected to the accelerator pedal mechanism and the sound producing mechanism respectively, and is disposed on the accelerator pedal mechanism. The accelerator pedal mechanism comprises an installation box, an installation base fixedly connected to the installation box, and an accelerator pedal disposed on the installation base, the installation box has a chamber, and the controller is disposed in the chamber of the installation box. The controller is electrically connected to the sound producing mechanism by a wire, and the installation box is provided with a through-hole for the wire to pass through. The pedestrian alert device for an electric vehicle has low cost and a compact structure.
    Type: Application
    Filed: October 14, 2019
    Publication date: January 6, 2022
    Inventors: Hongbing DING, Kaihua QIAN, Wenwei LIU, Guoqiang CHAI, Jianming ZHOU
  • Publication number: 20210309146
    Abstract: A pedestrian warning device, comprising a warning device body having a cavity and an open end portion, and a sound-generating device mounted inside the cavity, wherein the pedestrian warning device further comprises a grille cover arranged on the end portion of the warning device body; the grille cover comprises at least two grille layers spaced at intervals from the inside to the outside, each of the grille layers comprising a plurality of crossbeams, the crossbeams being arranged at intervals so as to form gaps to enable gas to flow between adjacent crossbeams, and wherein a width of the gaps is not greater than a width of the crossbeams, and the crossbeams of adjacent grille layers are interleaved with each other. The grille cover can protect internal component of the pedestrian warning device and will not affect the performance of the pedestrian warning device.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 7, 2021
    Applicant: Suzhou Sonavox Electronics Co., LTD
    Inventors: Xiafeng Xue, Jianming Zhou, Guoqiang Chai, Shenggang Tao, Kaihua Qian
  • Patent number: 11089400
    Abstract: The present disclosure relates to a coaxial speaker, which has better dust-proof and water-proof performance. The coaxial loudspeaker comprises a bass unit and a high-pitched unit coaxially arranged, the bass unit comprises a T-iron, a diaphragm and a voice coil connected to the diaphragm. The coaxial loudspeaker further comprises a cabin fixed on the T-iron, a lower portion of the cabin passes through the voice coil to connect with the T-iron, a top end portion of the cabin is located above the diaphragm, the high-pitched unit is arranged on the top end portion of the cabin, and the coaxial loudspeaker further comprises a dust-proof ring having an upper edge connected with the top end portion of the cabin and a lower edge connected with the upper portion of the voice coil.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 10, 2021
    Assignee: SUZHOU SONAVOX ELECTRONICS CO., LTD
    Inventors: Shenggang Tao, Kaihua Qian, Yuewu Shen, Xiaoqing Wang, Guoqiang Chai
  • Publication number: 20210130034
    Abstract: A speaker packaging device and a package body. The speaker packaging device comprises a base plate for supporting a speaker, at least two horizontal blocking plates extending laterally, and at least one vertical blocking plate unit. The vertical blocking plate unit is composed of two vertical blocking plates extending in a vertical direction and spaced apart from each other. A bottom end portion of the horizontal blocking plate and a bottom end portion of the vertical blocking plate are connected to the base plate. The pair of vertical blocking plates of each vertical blocking plate unit are connected between adjacent horizontal blocking plates to define a space for accommodating the speaker.
    Type: Application
    Filed: September 21, 2018
    Publication date: May 6, 2021
    Inventors: Yu Wang, Xiaoping Gu, Yuezhen Li, Xiaoqing Wang, Guoqiang Chai
  • Publication number: 20210136482
    Abstract: The present disclosure relates to a coaxial speaker, which has better dust-proof and water-proof performance. The coaxial loudspeaker comprises a bass unit and a high-pitched unit coaxially arranged, the bass unit comprises a T-iron, a diaphragm and a voice coil connected to the diaphragm. The coaxial loudspeaker further comprises a cabin fixed on the T-iron, a lower portion of the cabin passes through the voice coil to connect with the T-iron, a top end portion of the cabin is located above the diaphragm, the high-pitched unit is arranged on the top end portion of the cabin, and the coaxial loudspeaker further comprises a dust-proof ring having an upper edge connected with the top end portion of the cabin and a lower edge connected with the upper portion of the voice coil.
    Type: Application
    Filed: September 21, 2018
    Publication date: May 6, 2021
    Inventors: SHENGGANG TAO, KAIHUA QIAN, YUEWU SHEN, XIAOQING WANG, GUOQIANG CHAI