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1. WO2022000544 - SPEAKER BOX

Publication Number WO/2022/000544
Publication Date 06.01.2022
International Application No. PCT/CN2020/101480
International Filing Date 10.07.2020
IPC
H04R 1/02 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
02Casings; Cabinets; Mountings therein
H04R 1/20 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
H04R 1/28 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
22for obtaining desired frequency characteristic only
28Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
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 1/02
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
H04R 1/20
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
H04R 1/28
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
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
  • 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
  • 李红 LI, Hong
Agents
  • 广州市越秀区哲力专利商标事务所(普通合伙) GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE
Priority Data
202021233681.329.06.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SPEAKER BOX
(FR) ENCEINTE DE HAUT-PARLEUR
(ZH) 扬声器箱
Abstract
(EN) The present utility model provides a speaker box. The speaker box comprises a housing and a sound producing unit; the housing has an accommodating space; the sound producing unit is accommodated in the accommodating space; the sound producing unit divides the accommodating space into a front cavity and a rear cavity; the rear cavity has a first rear cavity and a second rear cavity; the second rear cavity is filled with sound-absorbing particles; and the inner side surface of the second rear cavity is provided with a blocking rib capable of blocking the movement of the sound-absorbing particles. The provision of the blocking rib capable of blocking the movement of the sound-absorbing particles in the second rear cavity further reduces the change in the lowest resonance frequency (F0) caused by the wear of the sound-absorbing particles, thus effectively improving the acoustic performance of the speaker box having a long virtual sound cavity.
(FR) Le présent modèle d'utilité concerne une enceinte de haut-parleur. L'enceinte de haut-parleur comprend un boîtier et une unité de production de son ; le boîtier présente un espace de réception ; l'unité de production de son est logée dans l'espace de réception ; l'unité de production de son divise l'espace de réception en une cavité avant et une cavité arrière ; la cavité arrière comporte une première cavité arrière et une seconde cavité arrière ; la seconde cavité arrière est remplie de particules absorbant le son ; et la surface latérale interne de la seconde cavité arrière est pourvue d'une nervure de blocage capable de bloquer le mouvement des particules absorbant le son. La disposition de la nervure de blocage capable de bloquer le mouvement des particules absorbant le son dans la seconde cavité arrière réduit en outre le changement de la fréquence de résonance la plus basse (F0) provoquée par l'usure des particules absorbant le son, ce qui permet d'améliorer efficacement les performances acoustiques de l'enceinte de haut-parleur ayant une longue cavité sonore virtuelle.
(ZH) 本实用新型提供一种扬声器箱,扬声器箱包括壳体和发声单体,所述壳体具有收容空间;发声单体收容于所述收容空间内,所述发声单体将所述收容空间分隔为前腔和后腔;所述后腔具有第一后腔和第二后腔,所述第二后腔内填充吸音颗粒,所述第二后腔的内侧面设置有可对所述吸音颗粒的运动进行阻断的阻断筋。通过在所述第二后腔内设置有可对所述吸音颗粒的运动进行阻断的阻断筋,进一步降低因吸音颗粒磨损带来的最低共振频率(F0)的变化,因此,有效改善了虚拟声腔长度较长的扬声器箱的声学性能。
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