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公开(公告)号：EP4437740A1
公开(公告)日：2024-10-02
申请号：EP22817087.4
申请日：2022-11-18
发明人： NEUBAUER, Philipp , PATSOURAS, Dimitrios , KERKMANN, Johannes , MORITZ, Karsten , JOEST, Robert , EISELE, Stephan , KÖHLER, Pascal , WICK, Robert , FRIEDRICH, Jens , HEINZ, Stefan
CPC分类号： H04R9/025 , H04R9/047 , H04R2400/1120130101 , H04R9/043 , H04R31/006 , H04R2209/02420130101 , H04R2499/1120130101
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公开(公告)号：EP4412247A1
公开(公告)日：2024-08-07
申请号：EP21958493.5
申请日：2021-09-29
申请人： LG Electronics Inc.
发明人： YANG, Sungeun
CPC分类号： H04R2499/1520130101 , H04R2400/1120130101 , H04R9/025 , H04R7/04 , H04R7/20 , H04R9/041 , H04R1/345
摘要： The present invention relates to a sound output device having a slim structure and high efficiency, and a display device comprising same, the sound output device comprising: a base plate of a metal material; an inner magnetic portion positioned at the center of the base plate; a voice coil positioned around the circumference of the inner magnetic portion; a plurality of outer magnetic portions positioned around the circumference of the voice coil; an upper cover positioned above the inner magnetic portion, the voice coil, and the outer magnetic portions; a circular diaphragm positioned around the outer magnetic portions; and a bridge passing through between the plurality of outer magnetic portions and connecting the diaphragm to the voice coil, wherein the inner magnetic portion includes a first inner magnet; an inner plate positioned on the upper surface of the inner magnet; and a second inner magnet positioned on the upper surface of the inner plate, and the outer magnetic portions include a plurality of first outer magnets positioned around the outer circumference of the voice coil; an outer plate positioned on the upper surface of the first outer magnets; and a second outer magnet positioned on the upper surface of the outer plate.
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公开(公告)号：EP4391586A1
公开(公告)日：2024-06-26
申请号：EP22885765.2
申请日：2022-10-19
发明人： QIN, Renxuan , LIU, Yang , ZHAO, Wenchang , GUO, Li
摘要： This application provides a speaker and an electronic device. The speaker (30) includes a housing (31), a vibration component (32), and a magnetic circuit component (33). The housing (31) has an inner cavity (311). The magnetic circuit component (33) is disposed in the inner cavity (311). The magnetic circuit component (33) has a magnetic gap (333). The vibration component (32) includes a first diaphragm (321), a second diaphragm (322), and a voice coil (323). The first diaphragm (321) and the second diaphragm (322) are respectively located on two opposite sides of the magnetic circuit component (33). Circumferential edges of the first diaphragm (321) and the second diaphragm (322) are connected to the housing (31). The voice coil (323) is located inside the magnetic gap (333), and two opposite sides of the voice coil (323) are respectively connected to the first diaphragm (321) and the second diaphragm (322). The speaker and the electronic device in this application have large loudness on a premise of miniaturization.
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公开(公告)号：EP3011761B1
公开(公告)日：2024-04-10
申请号：EP14813177.4
申请日：2014-06-18
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公开(公告)号：EP4322552A2
公开(公告)日：2024-02-14
申请号：EP23182379.0
申请日：2023-06-29
发明人： Oclee-Brown, Jack
摘要： Apparatus and methods for a velocity-sensing approach to loudspeaker motional feedback comprising providing a first magnetic field to couple primarily with the voice coil to drive the voice coil, providing a second magnetic field to couple primarily with the sensing winding, and sensing the voltage induced in the second, sensing winding as it reciprocates in the second magnetic field. The second magnetic field has an orientational periodicity which is circumferential in relation to the reciprocation axis and this orientational periodicity extends over at least a part of the length of the former along the reciprocation axis.
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公开(公告)号：EP4236368A3
公开(公告)日：2023-09-13
申请号：EP23173238.9
申请日：2018-10-26
申请人： Mayht Holding B.V.
摘要： A loudspeaker device comprises first and second diaphragms (12, 14) arranged co-axially in an opposed relation to each other to cancel mechanical vibrations. Each diaphragm has multiple voice coils, with the voice coils of the first and second diaphragms (12, 14) arranged in the same plane to reduce the height of the loudspeaker device.
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公开(公告)号：EP4231665A1
公开(公告)日：2023-08-23
申请号：EP23154411.5
申请日：2023-02-01
发明人： Toita, Hiroki , Yoshida, Yusuke
摘要： A speaker includes a diaphragm including a circular hole in which a bobbin is attached and an oval or elliptical outer peripheral end. The diaphragm includes a circular cross-sectional area in the range of a predetermined height above a base having the circular hole. The diaphragm further includes an intermediate area whose outer surface has a small curvature radius above the circular cross-sectional area and an expanded area that is oval in cross section above the intermediate area.
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公开(公告)号：EP4195699A1
公开(公告)日：2023-06-14
申请号：EP23150517.3
申请日：2019-11-27
申请人： Google LLC
摘要： An actuator, comprising: a frame comprising a panel extending in a plane and one or more pillars extending perpendicular from the plane; a magnetic circuit assembly comprising a magnet and a voice coil; and one or more suspension members attaching the frame to a first component of the magnetic circuit assembly. Each suspension member comprises: a vertical segment extending in an axial direction attaching the suspension member to a corresponding one of the pillars;
a first arm extending away from the corresponding pillar in a first plane parallel to the panel's plane to an end attached to the first component; and a second arm extending away from the corresponding pillar in a second plane to an end attached to the first component, the second plane being parallel to the first plane and offset from the first plane in the axial direction.
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