Title:
LOUDSPEAKER BOX
Document Type and Number:
WIPO Patent Application WO/2021/007799
Kind Code:
A1
Abstract:
The present application provides a loudspeaker box. The loudspeaker box comprises an upper housing, a lower housing matching the upper housing to form an accommodation space, and a loudspeaker unit accommodated in the accommodation space. The loudspeaker unit comprises a vibration diaphragm for vibrating to produce sound and an upper cover provided between the vibration diaphragm and the upper housing. The upper housing, the upper cover, and the vibration diaphragm form a front acoustic cavity. The lower housing, the upper housing, the upper cover, and the vibration diaphragm match to form a rear cavity. The rear cavity comprises a first rear cavity provided in the loudspeaker unit and a second rear cavity located outside the loudspeaker unit and in communication with the first rear cavity. The upper cover comprises a groove recessed from the surface of the upper cover at the side close to the vibration diaphragm to the direction away from the vibration diaphragm. The groove is in communication with the front acoustic cavity and the second rear cavity. The reliability of the loudspeaker box provided in the present application is better than that in the related technology.
More Like This:
| WO/2009/039852 | AN ISOBARIC SOUND EMITTING SYSTEM |
Inventors:
MENG YIMING (CN)
ZHANG GUQING (CN)
PANG WEI (CN)
ZHANG GUQING (CN)
PANG WEI (CN)
Application Number:
PCT/CN2019/096302
Publication Date:
January 21, 2021
Filing Date:
July 17, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R1/02
Foreign References:
| CN206524941U | 2017-09-26 | |||
| CN206149495U | 2017-05-03 | |||
| CN202310078U | 2012-07-04 | |||
| CN105516870A | 2016-04-20 | |||
| DE202008001972U1 | 2008-05-29 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYUANLIHE PATENT AND TRADEMARK FIRM (GENERAL PARTNERSHIP) (CN)
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