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    ELECTRICAL-ACOUSTIC TRANSFORMATION DEVICE
    2.
    发明申请
    ELECTRICAL-ACOUSTIC TRANSFORMATION DEVICE 审中-公开

    公开(公告)号：US20180035213A1

    公开(公告)日：2018-02-01

    申请号：US15552707

    申请日：2015-12-09

    Applicant: Goertek, Inc.

    Inventor： Lianwen Shan ,  Xinfeng Yang ,  Hairong Wang ,  Longhao Cui

    IPC: H04R23/02 ,  H04R31/00 ,  H04R9/06 ,  H04R1/22 ,  H04R9/02

    CPC classification number: H04R23/02 ,  H04R1/22 ,  H04R9/025 ,  H04R9/06 ,  H04R19/02 ,  H04R31/003 ,  H04R2209/024 ,  H04R2400/11

    Abstract: Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, a piezoelectric plate provided on one side of the diaphragm, a first frequency division circuit connected to the voice coil, and a second frequency division circuit connected to the piezoelectric plate; and the first frequency division circuit performs frequency division on an externally input first audio signal and outputs same to the voice coil; and the second frequency division circuit performs frequency division on an externally input second audio signal to obtain a high frequency signal to drive the piezoelectric plate. The present invention provides an electrical-acoustic transformation device with super wideband.

    Electrical-acoustic transformation device
    3.
    发明授权
    Electrical-acoustic transformation device 有权

    公开(公告)号：US10219080B2

    公开(公告)日：2019-02-26

    申请号：US15552707

    申请日：2015-12-09

    Applicant: Goertek, Inc.

    Inventor： Lianwen Shan ,  Xinfeng Yang ,  Hairong Wang ,  Longhao Cui

    IPC: H04R9/02 ,  H04R1/22 ,  H04R9/06 ,  H04R23/02 ,  H04R19/02 ,  H04R31/00

    Abstract: Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, a piezoelectric plate provided on one side of the diaphragm, a first frequency division circuit connected to the voice coil, and a second frequency division circuit connected to the piezoelectric plate; and the first frequency division circuit performs frequency division on an externally input first audio signal and outputs same to the voice coil; and the second frequency division circuit performs frequency division on an externally input second audio signal to obtain a high frequency signal to drive the piezoelectric plate. The present invention provides an electrical-acoustic transformation device with super wideband.

    Electrical-acoustic transformation device
    6.
    发明授权
    Electrical-acoustic transformation device 有权

    公开(公告)号：US10225664B2

    公开(公告)日：2019-03-05

    申请号：US15552677

    申请日：2015-12-17

    Applicant: Goertek, Inc.

    Inventor： Lianwen Shan ,  Xinfeng Yang ,  Hairong Wang ,  Longhao Cui

    IPC: H04R9/06 ,  H04R9/04 ,  H04R7/10 ,  H04R7/04 ,  H04R17/00 ,  B06B1/02 ,  B06B1/04 ,  B06B1/06 ,  H04R1/02 ,  H04R1/06 ,  H04R1/22 ,  H04R1/24 ,  H04R23/02

    Abstract: Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, and a piezoelectric plate provided on one side of the diaphragm; and conductive lines are formed on the diaphragm, the conductive lines include a first conductive line connected to the piezoelectric plate to input an externally input first audio signal to the piezoelectric plate via the first conductive line. The electrical-acoustic transformation device in the present invention has a moving coil sound generating structure and a piezoelectric sound generating structure. The piezoelectric plate compensates the high-frequency response of the vibration system, realizing an electrical-acoustic transformation device with good performance and super wideband.

    Speaker module
    7.
    发明授权
    Speaker module 有权

    公开(公告)号：US10158937B2

    公开(公告)日：2018-12-18

    申请号：US15508052

    申请日：2014-10-30

    Applicant: GOERTEK INC.

    Inventor： Shuai Shao ,  Chao Xu ,  Lianwen Shan

    IPC: H04R1/28 ,  H04R1/02 ,  H04R1/06 ,  H04R9/02 ,  H04R9/06

    Abstract: A speaker module comprising a module housing is disclosed. A speaker unit is accommodated within the module housing. A sound hole of the module is located at a side of the speaker unit. The speaker unit divides a cavity of the entire module into two cavities, namely a front acoustic cavity and a rear acoustic cavity. The front acoustic cavity is in communication with the sound hole. A sound-absorbing cotton is provided in the front acoustic cavity. The sound-absorbing cotton is fixed on the module housing, and is arranged to avoid a vibration space of a diaphragm of the speaker unit. The present invention effectively improves the performance of a sensitivity curve of the module at high frequencies without modifying the structure of the front acoustic cavity, thus not only increasing the acoustic performance of the module, but also simplifying the structure of the front acoustic cavity of the module.

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