Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DIAPHRAGM OF SOUND GENERATING DEVICE, PREPARATION METHOD THEREFOR, AND SOUND GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/062813
Kind Code:
A1
Abstract:
Disclosed are a diaphragm of a sound generating device, a preparation method therefor, and a sound generating device. The diaphragm comprises at least one modified film layer, which is made of a blend polymer formed after the blending modification of silicone rubber and a modifier; the modifier is at least one among a butadiene-acrylonitrile copolymer, a butadiene-styrene copolymer, polysulfide rubber, polyurethane rubber, and polybutadiene. The diaphragm provided by the present invention is made of the blend polymer formed after using silicone rubber and the modifier for blending modification. The modifier is at least one among a butadiene-acrylonitrile copolymer, a butadiene-styrene copolymer, polysulfide rubber, polyurethane rubber, and polybutadiene, which can increase the intermolecular force and/or steric resistance of the silicone rubber and enable the diaphragm have excellent damping performance. The sound generating device has excellent consistency during a vibration process, excellent anti-polarization ability, reduced distortion performance, and higher sound quality.

Inventors:
HUI BING (CN)
WANG SHUQIANG (CN)
LING FENGGUANG (CN)
LI CHUN (CN)
Application Number:
PCT/CN2021/114461
Publication Date:
March 31, 2022
Filing Date:
August 25, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/12
Foreign References:
CN111935602A2020-11-13
CN106817658A2017-06-09
CN111654790A2020-09-11
CN111065024A2020-04-24
CN110996245A2020-04-10
CN211089959U2020-07-24
JP2013214874A2013-10-17
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: SCREEN DEFECT DETECTION METHOD, APPARATUS, AND ELECTRONIC DEVICE

Next Patent: VIBRATING DIAPHRAGM AND SOUND PRODUCTION DEVICE