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1. WO2020140548 - SOUND GENERATING DEVICE AND ELECTRONIC APPARATUS

Publication Number WO/2020/140548
Publication Date 09.07.2020
International Application No. PCT/CN2019/110855
International Filing Date 12.10.2019
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 1/021
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
02Casings; Cabinets ; ; Supports therefor;; Mountings therein
021incorporating only one transducer
H04R 1/025
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
02Casings; Cabinets ; ; Supports therefor;; Mountings therein
025Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
H04R 1/2873
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
22for obtaining desired frequency characteristic only
28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
2869Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
2873for loudspeaker transducers
H04R 1/288
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
22for obtaining desired frequency characteristic only
28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
2869Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
2876by means of damping material, e.g. as cladding
288for loudspeaker transducers
H04R 1/345
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
34by using a single transducer with sound reflecting, diffracting, directing or guiding means
345for loudspeakers
H04R 2499/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
2499Aspects covered by H04R or H04S not otherwise provided for in their subgroups
10General applications
11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Applicants
  • 瑞声声学科技(深圳)有限公司 AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD. [CN]/[CN]
  • 瑞声科技(新加坡)有限公司 AAC TECHNOLOGIES PTE. LTD. [SG]/[SG]
Inventors
  • 张哲 ZHANG, Zhe
Agents
  • 广东广和律师事务所 GUANGDONG GUANGHE LAW FIRM
Priority Data
201822278789.330.12.2018CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SOUND GENERATING DEVICE AND ELECTRONIC APPARATUS
(FR) DISPOSITIF DE GÉNÉRATION DE SON ET APPAREIL ÉLECTRONIQUE
(ZH) 发声器件及电子设备
Abstract
(EN) The present invention provides a sound generating device, comprising a first housing that is provided with an accommodating space, and a loudspeaker unit that is accommodated in the accommodating space and provided with a vibration diaphragm used for vibrating to generate sound, wherein the vibration diaphragm divides the accommodating space into a front acoustic cavity and a rear acoustic cavity; the front acoustic cavity is formed between the vibration diaphragm and the first housing facing the vibration diaphragm at an interval. The sound generating device further comprises a second housing, wherein the first housing and the second housing are provided at an interval; and a connection component that is communicated with the second housing and the first housing, wherein the second housing comprises an auxiliary acoustic cavity, and the connection component is communicated with the auxiliary acoustic cavity and the rear acoustic cavity. Compared with the prior art, the present invention has the following beneficial effects: the low frequency performance of the sound generating device is improved by providing the second housing that is provided with the auxiliary acoustic cavity; an electronic apparatus that uses the sound generating device can uses internal idle space as the auxiliary acoustic cavity, thereby improving the low frequency performance of the electronic apparatus.
(FR) La présente invention concerne un dispositif de génération de son, comprenant un premier boîtier qui est pourvu d'un espace de réception, et une unité de haut-parleur qui est logée dans l'espace de réception et pourvue d'une membrane de vibration utilisée pour vibrer afin de générer un son, la membrane de vibration divisant l'espace de réception en une cavité acoustique avant et une cavité acoustique arrière; la cavité acoustique avant étant formée entre la membrane de vibration et le premier boîtier faisant face a la membrane de vibration à un intervalle. Le dispositif de génération de son comprend en outre un second boîtier, le premier boîtier et le second boîtier étant disposés à un intervalle; et un composant de connexion qui est en communication avec le second boîtier et le premier boîtier, le second logement comprenant une cavité acoustique auxiliaire, et le composant de connexion étant en communication avec la cavité acoustique auxiliaire et la cavité acoustique arrière. Par comparaison avec l'état de la technique, la présente invention présente les effets bénéfiques suivants : la performance basse fréquence du dispositif de génération de son est améliorée par la fourniture du second boîtier qui est pourvu de la cavité acoustique auxiliaire; un appareil électronique qui utilise le dispositif de génération de son peut utiliser un espace libre interne en tant que cavité acoustique auxiliaire, ce qui permet d'améliorer les performances à basse fréquence de l'appareil électronique.
(ZH) 本实用新型提供了一种发声器件,包括具有收容空间的第一壳体和收容于所述收容空间内并设有用于振动发声的振膜的扬声器单体,所述振膜将所述收容空间分隔成前声腔和后声腔,所述振膜与正对所述振膜的所述第一壳体之间间隔形成所述前声腔,所述发声器件还包括与所述第一壳体间隔设置的第二壳体、以及连通所述第二壳体与所述第一壳体的连接件,所述第二壳体具有辅助声腔,所述连接件连通所述辅助声腔与所述后声腔。与相关技术相比,本实用新型具有如下有益效果:发声器件通过设置具有辅助声腔的第二壳体,改善了发生器件的低频性能;应用该发声器件的电子设备可以利用内部闲置的空间作为辅助声腔,从而改善了电子设备的低频性能。
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