Title:
SOUND ABSORBING MATERIAL ENCAPSULATION STRUCTURE FOR SOUND PRODUCTION DEVICE, AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/120915
Kind Code:
A1
Abstract:
Provided are a sound absorbing material encapsulation structure for a sound production device, and a sound production device. The sound absorbing material encapsulation structure comprises a rigid cavity wall that defines a cavity of the sound absorbing material encapsulation structure, and the cavity is configured to accommodate a sound absorbing material. The rigid cavity wall is provided with vent holes arranged in an array. The vent holes are configured to form channels for air to enter or exit the sound absorbing material encapsulation structure, and have a hole diameter less than a material diameter of the sound absorbing material. A base plate is connected to an end surface of the rigid cavity wall in a sealing manner, and is configured to support the sound absorbing material. A sealing plate covers another end surface of the rigid cavity wall, and is connected to the rigid cavity wall in a sealing manner. The invention uses the rigid cavity wall to form the sound absorbing material encapsulation structure filled by the sound absorbing material, thereby preventing deformation thereof, and accordingly preventing the sound absorbing material collapsing due to pressure.
Inventors:
NIU JIAPENG (CN)
SUN ZHIJUN (CN)
SUN ZHIJUN (CN)
Application Number:
PCT/CN2020/126923
Publication Date:
June 24, 2021
Filing Date:
November 06, 2020
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R1/28
Foreign References:
| CN111083602A | 2020-04-28 | |||
| CN204681564U | 2015-09-30 | |||
| CN205987346U | 2017-02-22 | |||
| CN108377451A | 2018-08-07 | |||
| US20180124502A1 | 2018-05-03 |
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