Processing

Please wait...

Settings

Settings

Goto Application

1. CN212519304 - Loudspeaker box

Office
China
Application Number 202021233681.3
Application Date 29.06.2020
Publication Number 212519304
Publication Date 09.02.2021
Publication Kind U
IPC
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
02Casings; Cabinets; Mountings therein
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
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
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 1/28
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
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
Applicants AAC TECHNOLOGIES (SINGAPORE) CO., LTD.
瑞声科技(新加坡)有限公司
Inventors LI HONG
李红
Agents 广州市越秀区哲力专利商标事务所(普通合伙) 44288
Title
(EN) Loudspeaker box
(ZH) 扬声器箱
Abstract
(EN) The utility model provides a loudspeaker box, which comprises a shell and a sound production single body, and is characterized in that the shell is provided with an accommodating space; the sound production single body is accommodated in the accommodating space, and the accommodating space is divided into a front cavity and a rear cavity by the sound production single body; the rear cavity is provided with a first rear cavity body and a second rear cavity body, the second rear cavity body is filled with sound absorption particles, and blocking ribs capable of blocking movement of the sound absorption particles are arranged on the inner side face of the second rear cavity body. According to the loudspeaker box, the blocking ribs capable of blocking the movement of the sound absorption particles are arranged in the second rear cavity, so that the change of the lowest resonant frequency (F0) caused by the abrasion of the sound absorption particles is further reduced, and the acoustic performance of the loudspeaker box with a longer virtual sound cavity is effectively improved.
(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。
Related patent documents