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1. WO2020258796 - SOUND PRODUCING DEVICE

Publication Number WO/2020/258796
Publication Date 30.12.2020
International Application No. PCT/CN2019/128425
International Filing Date 25.12.2019
IPC
H04R 9/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
06Loudspeakers
CPC
H04R 2400/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2400Loudspeakers
11Aspects regarding the frame of loudspeaker transducers
H04R 9/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
02Details
H04R 9/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
06Loudspeakers
Applicants
  • 歌尔股份有限公司 GOERTEK INC. [CN]/[CN]
Inventors
  • 刘华伟 LIU, Huawei
Priority Data
201910582638.327.06.2019CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SOUND PRODUCING DEVICE
(FR) DISPOSITIF DE PRODUCTION DE SON
(ZH) 发声装置
Abstract
(EN) Disclosed in the present invention is a sound producing device. The sound producing device comprises: a housing having two open ends; a vibrating system accommodated in the housing, the vibrating system comprising a vibrating diaphragm and a voice coil which are connected to each other; and a magnetic circuit system, the magnetic circuit system comprising a magnetic conductive yoke, the magnetic conductive yoke being formed by means of injection mold with metal powder, the magnetic conductive yoke comprising a cover part and a magnetic conductive part, the cover part being fixed to the housing and covering one of the open ends of the housing, and the magnetic conductive part being provided, in protruding manner, on the surface of the cover part facing the vibrating system and being located at the outer periphery of the voice coil. The technical solution of the present invention can improve the performance of the sound producing device.
(FR) La présente invention concerne un dispositif de production de son. Le dispositif de production de son comprend : un boîtier ayant deux extrémités ouvertes ; un système vibrant logé dans le boîtier, le système vibrant comprenant une membrane vibrante et une bobine mobile qui sont reliées entre elles ; et un système de circuit magnétique, le système de circuit magnétique comprenant une culasse magnétique conductrice, la culasse magnétique conductrice étant formée au moyen d'un moule d'injection de poudre métallique, la culasse magnétique conductrice comprenant une partie de couvercle et une partie magnétique conductrice, la partie de couvercle étant fixée au boîtier et recouvrant l'une des extrémités ouvertes du boîtier, et la partie magnétique conductrice étant prévue, de manière saillante, sur la surface de la partie de couvercle faisant face au système vibrant et étant située à la périphérie extérieure de la bobine mobile. La solution technique de la présente invention peut améliorer la performance du dispositif de production de son.
(ZH) 本发明公开一种发声装置,发声装置包括:外壳,呈两端敞口设置;振动系统,收容于所述外壳内,所述振动系统包括相互连接的振膜和音圈;以及磁路系统,所述磁路系统包括导磁轭,所述导磁轭通过金属粉末注射成型,所述导磁轭包括盖合部和导磁部,所述盖合部与所述外壳固定,并盖合所述外壳的其中一所述敞口,所述导磁部凸设于所述盖合部的朝向所述振动系统的表面,并位于所述音圈的外周。本发明技术方案能够提高发声装置的性能。
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