Title:
ACOUSTIC ADJUSTMENT MATERIAL, FILLING METHOD, SOUND GENERATING APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/007333
Kind Code:
A1
Abstract:
An acoustic adjustment material, a sound generating apparatus, a filling method, and an electronic device. The acoustic adjustment material comprises: an expandable thermoplastic elastomer filler and an acoustic improving filler. The expandable thermoplastic elastomer filler is foamed under a triggered condition to become a foam filler so as to provide a cushioning effect for the acoustic improvement filler during movement and collision. The volume of the expandable thermoplastic elastomer filler after foaming changes following temperature and/or foaming time. As such, the risk of the acoustic improvement filler cracking is significantly reduced, while the durability and service life of the acoustic adjustment material are increased.
Inventors:
PAN QUANQUAN (CN)
YAO YANGYANG (CN)
LING FENGGUANG (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
YAO YANGYANG (CN)
LING FENGGUANG (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
Application Number:
PCT/CN2020/136714
Publication Date:
January 13, 2022
Filing Date:
December 16, 2020
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
C08L67/00; C08J9/08; C08J9/10; C08J9/14; C08K3/36; C08K7/24; C08K7/26; C08L87/00; H04R1/28
Foreign References:
| CN111534058A | 2020-08-14 | |||
| CN111534018A | 2020-08-14 | |||
| CN111560133A | 2020-08-21 | |||
| CN111560145A | 2020-08-21 | |||
| CN111534017A | 2020-08-14 | |||
| CN111534019A | 2020-08-14 | |||
| CN111163392A | 2020-05-15 | |||
| CN107223148A | 2017-09-29 | |||
| US20040211934A1 | 2004-10-28 | |||
| CN106046483A | 2016-10-26 |
Download PDF: