Title:
COMPOSITE VIBRATING DIAPHRAGM FOR SOUND PRODUCTION DEVICE AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/093116
Kind Code:
A1
Abstract:
Disclosed is a composite vibrating diaphragm for a sound production device. In the composite vibrating diaphragm, a rubber layer and an adhesive diaphragm layer are compounded to form a composite structure, such that the temperature resistance and resilience of the rubber layer itself are guaranteed, and the resilience, high temperature resistance and high damping performance of the composite vibrating diaphragm are guaranteed by combining the advantages of a high modulus and high damping of the adhesive diaphragm layer of the composite structure; and the sound production device of the present invention has a better acoustic performance.
Inventors:
SONG QILONG (CN)
XIE ZHIHAO (CN)
WANG ZHAOMING (CN)
XIE ZHIHAO (CN)
WANG ZHAOMING (CN)
Application Number:
PCT/CN2019/129535
Publication Date:
May 20, 2021
Filing Date:
December 28, 2019
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/12
Domestic Patent References:
| WO2009118895A1 | 2009-10-01 |
Foreign References:
| CN105933831A | 2016-09-07 | |||
| CN105933831A | 2016-09-07 | |||
| CN109391887A | 2019-02-26 | |||
| CN108551640A | 2018-09-18 |
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