公开(公告)号：US20240117154A1

公开(公告)日：2024-04-11

申请号：US17767661

申请日：2019-12-25

Applicant: Goertek Inc.

Inventor： WEIFENG PENG ,  Fengguang Ling ,  Chun Li ,  Chunla Liu

IPC: C08K13/02 ,  H04R7/02 ,  H04R31/00

CPC classification number: C08K13/02 ,  H04R7/02 ,  H04R31/003 ,  H04R2307/023 ,  H04R2307/025

Abstract: Disclosed are a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes at least one elastomer layer, wherein the elastomer layer is made of butadiene rubber; the butadiene rubber is any one of nickel butadiene rubber, rare earth butadiene rubber and cobalt butadiene rubber, and a content of cis-form is greater than 80% to 100%. The vibrating diaphragm of the present disclosure can maintain excellent acoustic performance under extreme conditions of low temperature. (FIG. 1)

公开(公告)号：US20240114291A1

公开(公告)日：2024-04-04

申请号：US17767561

申请日：2019-12-25

Applicant: Goertek Inc.

Inventor： WEIFENG PENG ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: H04R7/04 ,  C08J5/04 ,  C08J7/04 ,  C08K3/06 ,  C08K5/00 ,  C08K5/40

CPC classification number: H04R7/04 ,  C08J5/0405 ,  C08J7/042 ,  C08K3/06 ,  C08K5/0016 ,  C08K5/40 ,  C08J2381/04 ,  H04R2307/025 ,  H04R2307/029

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.