Invention Grant
- Patent Title: Vibrating diaphragm of sound-producing apparatus and sound-producing apparatus
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Application No.: US17767561Application Date: 2019-12-25
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Publication No.: US12143791B2Publication Date: 2024-11-12
- Inventor: Weifeng Peng , Fengguang Ling , Chun Li , Chunfa Liu
- Applicant: Goertek Inc.
- Applicant Address: CN Shandong
- Assignee: Goertek Inc.
- Current Assignee: Goertek Inc.
- Current Assignee Address: CN Shandong
- Agency: Baker Botts LLP
- Priority: CN201911058555.0 20191031
- International Application: PCT/CN2019/128174 WO 20191225
- International Announcement: WO2021/082255 WO 20210506
- Main IPC: H04R7/04
- IPC: H04R7/04 ; C08J5/04 ; C08J7/04 ; C08K3/06 ; C08K5/00 ; C08K5/40
Abstract:
Provided is a vibrating diaphragm of a sound-producing apparatus. The vibrating diaphragm includes at least one elastomer layer, wherein the elastomer layer is made from polysulfide rubber; the polysulfide rubber is any one of type A polysulfide rubber, type FA polysulfide rubber and type ST polysulfide rubber, and a molecular weight of the polysulfide rubber is 1000-500000.
Public/Granted literature
- US20240114291A1 VIBRATING DIAPHRAGM OF SOUND-PRODUCING APPARATUS AND SOUND-PRODUCING APPARATUS Public/Granted day:2024-04-04
Information query
