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    ACOUSTIC OUTPUT DEVICE, EARPHONE, AND SUPER-LINEAR MULTI-MAGNETIC DUAL-DIAPHRAGM SPEAKER
    1.
    发明公开
    ACOUSTIC OUTPUT DEVICE, EARPHONE, AND SUPER-LINEAR MULTI-MAGNETIC DUAL-DIAPHRAGM SPEAKER 审中-公开

    公开(公告)号：EP4462817A1

    公开(公告)日：2024-11-13

    申请号：EP23918891.5

    申请日：2023-11-30

    申请人： Shenzhen Dancing Future Technology Ltd.

    发明人： WANG, Chuanbo ,  DENG, Hongguo ,  CHEN, Qifeng

    IPC分类号： H04R9/06 ,  H04R9/02

    摘要： An acoustic output apparatus and an earphone, including: a first diaphragm, a driving component, a second diaphragm and a housing structure, where a space between the second and first diaphragms close to the driving component forms a first cavity with the housing structure; a space between the electroacoustic transducer and the second diaphragm forms a second cavity with the housing structure; and in a working state, the driving component drives the first diaphragm to vibrate so as to cause the second diaphragm to passively vibrate, and a volume of the second cavity is not greater than 1/5 of an equivalent volume of the electroacoustic transducer.

    TRANSDUCTION DEVICE, LOUDSPEAKER, AND ACOUSTIC OUTPUT DEVICE
    2.
    发明公开
    TRANSDUCTION DEVICE, LOUDSPEAKER, AND ACOUSTIC OUTPUT DEVICE 审中-公开

    公开(公告)号：EP4451706A1

    公开(公告)日：2024-10-23

    申请号：EP22952819.5

    申请日：2022-11-21

    申请人： Shenzhen Shokz Co., Ltd.

    发明人： ZHU, Guangyuan ,  ZHANG, Lei ,  FU, Junjiang ,  QI, Xin

    IPC分类号： H04R9/06

    摘要： The present disclosure application relates to a transducer, a loudspeaker, and an acoustic output device. The transducer comprises: a magnetic circuit system, the magnetic circuit system including a magnet assembly and a magnetically conductive cover, the magnetically conductive cover at least partially surrounding the magnet assembly; a vibration plate, the vibration plate including a first vibration plate and a second vibration plate, wherein the first vibration plate and the second vibration plate are respectively disposed on two sides of the magnet assembly along a vibration direction of the transducer, and the first vibration plate and the second vibration plate are configured to elastically support the magnet assembly; and a coil disposed in the magnetic circuit system, wherein the coil is within a magnetic field range of the magnet assembly, and an overall direct current (DC) impedance of the coil is in a range of 6 Ω-10 Ω.

    ELECTRONIC DEVICE COMPRISING SPEAKER
    10.
    发明公开
    ELECTRONIC DEVICE COMPRISING SPEAKER 审中-实审

    公开(公告)号：EP4429268A1

    公开(公告)日：2024-09-11

    申请号：EP23756544.5

    申请日：2023-01-31

    申请人： Samsung Electronics Co., Ltd.

    发明人： PARK, Haekeu ,  KIM, Sungjin ,  KIM, Sohee ,  LEE, Byeongmin ,  CHANG, Juhee ,  JEONG, Hyeonyeong ,  HAN, Kiwook

    IPC分类号： H04R1/10 ,  H04R9/02

    CPC分类号： H04R9/02 ,  H04R1/10

    摘要： The electronic device comprises: a housing; a first frame, which is disposed inside the housing and includes a first surface; a second frame, which is coupled to the first frame so as to form an inner space, and includes a second surface facing the first surface; a speaker, which is disposed in the inner space and includes at least one voice coil; and a battery disposed at one side of the second frame, wherein the second frame includes at least one frame hole, and the ratio of vacuum to magnetic permeability (µ/µ0) of the material of the first frame and/or the material of the second frame can be 1000 or more.