Title:
DIAPHRAGM OF SOUND PRODUCTION DEVICE, AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/082252
Kind Code:
A1
Abstract:
Disclosed in the present invention are a diaphragm of a sound production device, and a sound production device. The material of the diaphragm is a butyl rubber membrane layer, and butyl rubber comprises a copolymer composed of isobutene monomers and isoprene monomers; the isoprene monomers are randomly distributed in molecular chains of the copolymer. One technical effect of the present disclosure is that the diaphragm made from butyl rubber can effectively inhibit excess vibration of a vibration system, and exert the effect of reducing distortion of an acoustic product. The diaphragm has excellent environmental adaptability and excellent acoustic performance.
Inventors:
WANG SHUQIANG (CN)
LING FENGGUANG (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
LING FENGGUANG (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
Application Number:
PCT/CN2019/128170
Publication Date:
May 06, 2021
Filing Date:
December 25, 2019
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
C08L23/22; C08J5/18; H04R9/02
Foreign References:
| DE3143166A1 | 1982-05-27 | |||
| CN105038097A | 2015-11-11 |
Other References:
CHAI CHUNPENG: "Butyl rubber", SYNTHESIS OF POLYMER MATERIALS SCIENCE, 31 January 2019 (2019-01-31), pages 203 - 205, XP009527789, ISBN: 978-7-5682-6659-8
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