Title:
ACOUSTIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/077647
Kind Code:
A1
Abstract:
An acoustic apparatus (3), comprising a housing (10), and a sound source (20) arranged in the housing (10), wherein a sound exit hole (11) and a reversed-phase sound hole (12) are provided in different surfaces of the housing (10); sounds emitted by the sound exit hole (11) and the reversed-phase sound hole (12) have opposite phases and the same amplitude; a first sound cavity (15) is formed between the front end of the sound source (20) and the sound exit hole (11), and a second sound cavity (16) is formed between the rear end of the sound source (20) and the reversed-phase sound hole (12); and the first sound cavity (15) is in communication with the second sound cavity (16) by means of a sound dipole tube (17) that is provided. The first sound cavity (15) is provided between the sound exit hole (11) and the sound source (20), the second sound cavity (16) is provided between the reversed-phase sound hole (12) and a rear side of the sound source (20), and the first sound cavity (15) is in communication with the second sound cavity (16) by means of the sound dipole tube (17), such that sounds having the same amplitude and opposite phases are coupled inside the acoustic apparatus (3); and the size of the sound dipole tube (17) and an acoustic damping value set on the acoustic dipole tube (17) are adjusted, such that the aim of adjusting the sound coupling magnitude is achieved, thereby effectively suppressing sound leakage.
Inventors:
WANG CHUANBO (CN)
DENG HONGGUO (CN)
LI HAOQIAN (CN)
DENG HONGGUO (CN)
LI HAOQIAN (CN)
Application Number:
PCT/CN2022/126079
Publication Date:
April 18, 2024
Filing Date:
October 19, 2022
Export Citation:
Assignee:
SHENZHEN DANCING FUTURE TECH LTD (CN)
International Classes:
H04R9/06
Domestic Patent References:
| WO2013121489A1 | 2013-08-22 |
Foreign References:
| CN112770232A | 2021-05-07 | |||
| CN113316054A | 2021-08-27 | |||
| CN103297904A | 2013-09-11 | |||
| CN113316061A | 2021-08-27 | |||
| CN113556655A | 2021-10-26 | |||
| CN203859862U | 2014-10-01 | |||
| CN216700051U | 2022-06-07 |
Attorney, Agent or Firm:
ESSEN PATENT & TRADEMARK AGENCY (CN)
Download PDF:
Previous Patent: INCREMENTAL QUERY METHOD BASED ON LINEAR PROGRAMMING
Next Patent: DISPOSABLE ELECTRONIC CIGARETTE POWERED BY MOBILE PHONE
Next Patent: DISPOSABLE ELECTRONIC CIGARETTE POWERED BY MOBILE PHONE