公开(公告)号：US11962986B2

公开(公告)日：2024-04-16

申请号：US17252606

申请日：2018-10-13

Applicant: GOERTEK INC.

Inventor： Ting Wang ,  Guodong Zhao ,  Jie Zhu ,  Chun Li ,  Chunfa Liu

IPC: H04R7/10 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  H04R7/12 ,  H04R9/02 ,  H04R9/06 ,  H04R7/18

CPC classification number: H04R7/125 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  H04R9/025 ,  H04R9/06 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2457/00 ,  H04R7/18 ,  H04R2307/025

Abstract: The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer, a thermoplastic polyester elastomer being a copolymer composed of a hard segment A of polyester and a soft segment B of polyether or aliphatic polyester, wherein the thermoplastic polyester elastomer film layer has Young's modulus of 1-1000 MPa, with an elastic recovery rate after 10% strain being greater than or equal to 80%. The speaker diaphragm has a good stiffness, a good damping performance and a good resilience.

公开(公告)号：US20240121552A1

公开(公告)日：2024-04-11

申请号：US17767517

申请日：2019-12-24

Applicant: Goertek, Inc.

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

IPC: H04R1/28 ,  C08F222/30 ,  C08K3/04 ,  C08L9/02

CPC classification number: H04R1/2811 ,  C08F222/30 ,  C08K3/04 ,  C08L9/02 ,  H04R2201/029

Abstract: The present disclosure provides a vibrating diaphragm for a miniature sound-producing device and the miniature sound-producing device. The vibrating diaphragm is made of nitrile rubber; the nitrile rubber is prepared by performing cross-linking polymerization on polyacrylonitrile as a polymerization main monomer and a crosslinking monomer which is polybutadiene, and the content of a polyacrylonitrile block of the polymerization main monomer in the nitrile rubber is 10 to 70 wt %. The vibrating diaphragm provided by the present disclosure has more excellent structural stability, anti-polarization capability and low frequency sensitivity. The miniature sound-producing device provided by the present disclosure has more excellent acoustic performance.

公开(公告)号：US11800288B2

公开(公告)日：2023-10-24

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 ,  B32B25/14 ,  H04R9/02 ,  H04R9/06 ,  H04R31/00 ,  B32B7/022 ,  B32B25/04 ,  C08J5/18

CPC classification number: H04R7/125 ,  B32B7/022 ,  B32B25/042 ,  B32B25/14 ,  C08J5/18 ,  H04R9/025 ,  H04R9/06 ,  H04R31/003 ,  B32B2250/248 ,  B32B2307/306 ,  B32B2307/51 ,  B32B2307/536 ,  B32B2307/54 ,  B32B2307/554 ,  B32B2307/5825 ,  B32B2307/732 ,  B32B2457/00 ,  C08J2323/16 ,  H04R2307/025

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：US20220369037A1

公开(公告)日：2022-11-17

申请号：US17618976

申请日：2020-04-21

Applicant: Goertek Inc.

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

IPC: H04R7/12 ,  H04R7/06 ,  C08L15/00 ,  C08J3/24

Abstract: Disclosed are a diaphragm for a sound generating device and a sound generating device. The vibration diaphragm comprises at least one elastomer layer, wherein the elastomer layer is made of a hydrogenated nitrile butadiene rubber polymer; and the hydrogenated nitrile butadiene rubber polymer comprises acrylonitrile blocks, content of the acrylonitrile blocks in the hydrogenated nitrile butadiene rubber polymer ranging from 10 wt % to 70 wt %, a vulcanizing agent is added into the hydrogenated nitrile butadiene rubber polymer, and content of the vulcanizing agent is 1% to 15% of total content of the hydrogenated nitrile butadiene rubber polymer. The diaphragm of the present disclosure has excellent resilience, maintains high elasticity in a low-temperature environment and is capable of long-time working in a high-temperature environment, therefore enabling the sound generating device to be applied in an extremely severe environment while keeping its acoustic performance in an excellent state.

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：US11470425B2

公开(公告)日：2022-10-11

申请号：US17251886

申请日：2018-10-13

Applicant: GOERTEK INC.

Inventor： Ting Wang ,  Guodong Zhao ,  Jie Zhu ,  Chun Li ,  Chunfa Liu

IPC: H04R9/06 ,  B32B7/12 ,  B32B27/36 ,  H04R7/12 ,  H04R9/02

Abstract: The present disclosure provides a speaker, comprising a vibration system including a speaker diaphragm and a magnetic circuit system cooperating with the vibration system. The speaker diaphragm comprises a thermoplastic polyester elastomer membrane and has a vibration amplitude of 0.25-1 mm, and the speaker has F0 of 150-1500 Hz. The speaker has the characteristic of good listening effect.

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：US20210274288A1

公开(公告)日：2021-09-02

申请号：US17252597

申请日：2018-10-13

Applicant: GOERTEK INC.

Inventor： Ting Wang ,  Guodong Zhao ,  Jie Zhu ,  Chun Li ,  Chunfa Liu

IPC: H04R9/06 ,  B32B27/08 ,  B32B27/36 ,  B32B7/12 ,  H04R9/02 ,  H04R7/10

Abstract: A speaker is disclosed, which comprises a vibration system and a magnetic circuit system cooperating with the vibration system. The vibration system includes a speaker diaphragm, the speaker diaphragm comprises two surface layers compounded together and at least one intermediate layer positioned between the two surface layers, at least one of the surface layers is a thermoplastic polyester elastomer film layer, the at least one intermediate layer is an adhesive layer, the speaker diaphragm has Young's modulus of 5-700 MPa and an amplitude of 0.25 mm-1 mm, and the speaker has F0 of 150-1500 Hz. The speaker has a good sounding effect.