公开(公告)号：US20220360902A1

公开(公告)日：2022-11-10

申请号：US17619049

申请日：2020-04-21

Applicant: Goertek Inc.

Inventor： Shuqiang Wang ,  Bing Hui ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: H04R7/12 ,  H04R9/06 ,  H04R9/02 ,  H04R31/00 ,  C08J5/18 ,  B32B7/022 ,  B32B25/04 ,  B32B25/14

Abstract: Disclosed are a diaphragm for a sound generating device and a sound generating device. The diaphragm comprising at least one elastomer layer, wherein the elastomer layer is made of an ethylene propylene diene monomer; and the ethylene propylene diene monomer is formed by polymerizing three monomers, the three monomers being an ethylene monomer, a propylene monomer and a non-conjugated diene monomer respectively, a mass ratio of the ethylene monomer to the propylene monomer ranging from 0.25 to 4, and content of the non-conjugated diene monomer being 1%-15% of total content of the ethylene monomer and the propylene monomer. The ethylene propylene diene monomer has excellent high-temperature resistance and thermo-oxidative aging resistance; and after the rubber is made into the diaphragm, the diaphragm is capable of working in a high-temperature environment for a long time, maintaining not only excellent elasticity but also excellent anti-fatigue characteristic, thereby possessing excellent reliability.

公开(公告)号：US12200459B2

公开(公告)日：2025-01-14

申请号：US17767365

申请日：2019-12-25

Applicant: Goertek Inc.

Inventor： Shuqiang Wang ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: H04R7/02 ,  H04R9/06

Abstract: The present disclosure provides a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes a fluorosilicone rubber film layer, and the fluorosilicone rubber includes a linear polymer composed of a silica main chain and a side chain radical; a molecular structure of the polymer including a unit with the side chain radical with vinyl is a methyl vinyl siloxane unit, and a unit with the side chain radical with R1 is a fluorine-containing siloxane unit; and wherein n and m are natural numbers, and R1 comprises at least one of fluoroalkyl and fluoroaryl.

公开(公告)号：US12163000B2

公开(公告)日：2024-12-10

申请号：US17767745

申请日：2019-12-25

Applicant: Goertek Inc.

Inventor： Shuqiang Wang ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: C08J5/18 ,  H04R7/10 ,  H04R9/02 ,  H04R9/06 ,  H04R31/00

Abstract: Disclosed are a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes a polyurethane rubber film layer and the polyurethane rubber film layer includes a block polymer formed by soft segment portions and hard segment portions that are arranged alternately, wherein each of the soft segment portions includes polyhydric alcohol and each of the hard segment portions includes isocyanate and a chain extender, and the polyurethane rubber is represented by a structural formula as follows: wherein R is the chain extender, R1 is polyhydric alcohol and n is a natural number. (FIG. 6).

公开(公告)号：US20240101768A1

公开(公告)日：2024-03-28

申请号：US17767745

申请日：2019-12-25

Applicant: Goertek Inc.

Inventor： Shuqiang Wang ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: C08J5/18 ,  H04R7/10 ,  H04R9/02 ,  H04R9/06

CPC classification number: C08J5/18 ,  H04R7/10 ,  H04R9/025 ,  H04R9/06 ,  H04R31/003 ,  H04R2307/025

Abstract: Disclosed are a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes a polyurethane rubber film layer and the polyurethane rubber film layer includes a block polymer formed by soft segment portions and hard segment portions that are arranged alternately, wherein each of the soft segment portions includes polyhydric alcohol and each of the hard segment portions includes isocyanate and a chain extender, and the polyurethane rubber is represented by a structural formula as follows:




wherein R is the chain extender, R1 is polyhydric alcohol and n is a natural number. (FIG. 6)

公开(公告)号：US20220182762A1

公开(公告)日：2022-06-09

申请号：US17614264

申请日：2020-04-20

Applicant: Goertek Inc.

Inventor： BING HUI ,  Shuqiang Wang ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: H04R7/02

Abstract: Disclosed are a diaphragm for a miniature sound-generating device, wherein the diaphragm is made of a polyacrylate copolymer, a reinforcing agent is mixed in the polyacrylate copolymer, the polyacrylate copolymer is 100 parts by mass, and the reinforcing agent comprises at least one of carbon black, silicon dioxide, calcium carbonate and barium sulphate, and is 1-90 parts by mass. The diaphragm provided in the disclosure possesses excellent sound performance.

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.

公开(公告)号：US20220386030A1

公开(公告)日：2022-12-01

申请号：US17767365

申请日：2019-12-25

Applicant: Goertek Inc.

Inventor： Shuqiang Wang ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: H04R7/02 ,  H04R9/06

Abstract: The present disclosure provides a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes a fluorosilicone rubber film layer, and the fluorosilicone rubber includes a linear polymer composed of a silica main chain and a side chain radical; a molecular structure of the polymer including a unit with the side chain radical with vinyl is a methyl vinyl siloxane unit, and a unit with the side chain radical with R1 is a fluorine-containing siloxane unit; and wherein n and m are natural numbers, and R1 comprises at least one of fluoroalkyl and fluoroaryl.

公开(公告)号：US20220251253A1

公开(公告)日：2022-08-11

申请号：US17614205

申请日：2020-04-20

Applicant: Goertek Inc.

Inventor： Bing Hui ,  Shuqiang Wang ,  Fengguang Ling ,  Chun Li ,  Chunfa Liu

IPC: C08F22/10 ,  H04R31/00 ,  H04R7/02 ,  C08K5/00 ,  C08K5/11 ,  C08K5/12 ,  C08J3/24

Abstract: A diaphragm for a miniature sound generating device, wherein the diaphragm is made of a polyacrylate copolymer, a plasticizer is mixed in the polyacrylate copolymer, the polyacrylate copolymer is 100 parts by mass, and the plasticizer comprises at least one of aliphatic dibasic acid esters, phthalic acid esters, benzene polyacid esters, benzoic ethers, polyol esters, chlorinated hydrocarbons, epoxides, citrate esters and polyesters. The diaphragm possesses excellent sound performance.

公开(公告)号：US12256206B2

公开(公告)日：2025-03-18

申请号：US17631015

申请日：2018-12-14

Applicant: GOERTEK INC.

Inventor： Fengguang Ling ,  Shuqiang Wang ,  Chun Li ,  Chunfa Liu

IPC: H04R7/04 ,  C08K5/00 ,  C08L23/08 ,  C08L23/0869 ,  H04R31/00

Abstract: A diaphragm applied to a sound producing device, a sound producing device, and a method for assembling the same. The diaphragm comprises a film layer prepared by means of a crosslinking reaction of at least one of an ethylene-acrylate copolymer and an ethylene-acrylate-carboxylic acid copolymer. The molecular structure of the diaphragm comprises a vinyl-acrylic group. The group causes the material to have a less symmetrical chemical structure, a reduced tacticity and an increased steric hindrance, such that the diaphragm has a high loss factor, and the sound producing device achieves a good damping effect.