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：US11457316B2

公开(公告)日：2022-09-27

申请号：US17252367

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 ,  H04R7/10 ,  H04R9/02

Abstract: The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer (11), a thermoplastic polyester elastomer being a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, wherein a mass percentage of the polyester hard segment A is 10-95%. The speaker diaphragm features high structural strength, is not easy to be damaged, and has good toughness and resilience and a good sound generation effect.

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：US11825285B2

公开(公告)日：2023-11-21

申请号：US17252493

申请日：2018-10-13

Applicant: GOERTEK INC.

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

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

CPC classification number: H04R7/125 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  H04R9/025 ,  H04R9/06 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/51 ,  B32B2307/54 ,  H04R7/18 ,  H04R2307/025

Abstract: The present disclosure provides a speaker diaphragm and a speaker. The speaker diaphragm comprises a thermoplastic polyester elastomer film layer (11), wherein a thermoplastic polyester elastomer is a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, and the thermoplastic polyester elastomer film layer has a glass transition temperature being less than or equal to 20° C., and a thermoplastic temperature being 50° C.-200° C. The use of the thermoplastic polyester elastomer film layer enables the speaker diaphragm to have a good flexibility, a high reliability, and a good durability, and improves the anti-destructive ability of the speaker.

公开(公告)号：US11800287B2

公开(公告)日：2023-10-24

申请号：US17252580

申请日：2018-10-13

Applicant: GOERTEK INC.

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

IPC: H04R7/10 ,  C09J7/25 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  H04R9/02 ,  H04R9/06 ,  H04R31/00

CPC classification number: H04R7/10 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  C09J7/255 ,  H04R9/025 ,  H04R9/06 ,  H04R31/003 ,  B32B2274/00 ,  B32B2457/00 ,  C09J2301/1242 ,  C09J2467/006 ,  H04R2307/025

Abstract: The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes two surface layers compounded together and at least one intermediate layer located between the two surface layers, wherein at least one of the surface layers is a thermoplastic polyester elastomer film layer, at least one of the intermediate layers is an adhesive layer, a thermoplastic polyester elastomer is a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, a thickness of the thermoplastic polyester elastomer film layer is 5-70 μm, and a thickness of the adhesive layer is 1-40 μm.

公开(公告)号：US11457317B2

公开(公告)日：2022-09-27

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 ,  H04R7/10 ,  H04R9/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36

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.

公开(公告)号：US11317211B2

公开(公告)日：2022-04-26

申请号：US17252537

申请日：2018-10-13

Applicant: GOERTEK INC.

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

IPC: H04R7/02 ,  H04R9/02

Abstract: The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes two surface layers compounded together and at least one intermediate layer located between the two surface layers, at least one of the surface layers being a thermoplastic polyester elastomer film layer (11), at least one intermediate layers being an adhesive layer (12), wherein the plastic polyester elastomer is a copolymer composed of a hard segment A of polyester and a soft segment B of polyether or aliphatic polyester, and the hard segment A of polyester has a mass percentage of 10-95%. The speaker diaphragm accommodates an excellent rigidity, a good damping performance and resilience and so on.

公开(公告)号：US20210258695A1

公开(公告)日：2021-08-19

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 ,  H04R9/02 ,  H04R7/12 ,  B32B7/12 ,  B32B27/36

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：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.

公开(公告)号：US12143791B2

公开(公告)日：2024-11-12

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

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.