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：US11818559B2

公开(公告)日：2023-11-14

申请号：US17252471

申请日：2018-10-13

Applicant: GOERTEK INC.

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

IPC: H04R31/00 ,  H04R7/10 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  C09J133/08 ,  C09J175/04 ,  C09J183/04

CPC classification number: H04R31/003 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  C09J133/08 ,  C09J175/04 ,  C09J183/04 ,  H04R7/10 ,  B32B2274/00 ,  B32B2457/00 ,  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, at least one of the surface layers is a thermoplastic polyester elastomer film layer, and at least one of the intermediate layers is an adhesive layer, wherein the thermoplastic polyester elastomer film layer has a Young's module of 1-1000 MPa, a loss factor being greater than or equal to 0.015, and an elastic recovery rate after 10% strain being greater than or equal to 80%. The speaker diaphragm may be made very thin, thus reducing the weight of the speaker diaphragm, improving the space allowance for vibration, improving the sensitivity, and making the F0 of the speaker lower. Further, elastic area of the speaker diaphragm is wider and the resilience performance is excellent.

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：US20210274286A1

公开(公告)日：2021-09-02

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

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：US20210274285A1

公开(公告)日：2021-09-02

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 ,  H04R9/02 ,  H04R9/06 ,  B32B27/36 ,  B32B27/08 ,  B32B7/12

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：US20210266672A1

公开(公告)日：2021-08-26

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 ,  B32B27/36 ,  B32B7/12 ,  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：US20210258707A1

公开(公告)日：2021-08-19

申请号：US17252471

申请日：2018-10-13

Applicant: GOERTEK INC.

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

IPC: H04R31/00 ,  H04R7/10 ,  B32B7/12 ,  B32B27/36 ,  B32B27/08 ,  C09J183/04 ,  C09J175/04 ,  C09J133/08

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 is a thermoplastic polyester elastomer film layer, and at least one of the intermediate layers is au adhesive layer, wherein the thermoplastic polyester elastomer film layer has a Young's module of 1-1000 MPa, a loss factor being greater than or equal to 0.015, and an elastic recovery rate after 10% strain being greater than or equal to 80%. The speaker diaphragm may be made very thin, thus reducing the weight of the speaker diaphragm, improving the space allowance for vibration, improving the sensitivity, and making the F0 of the speaker lower. Further elastic area of the speaker diaphragm is wider and the resilience performance is excellent.

公开(公告)号：US20210258692A1

公开(公告)日：2021-08-19

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 ,  H04R9/02 ,  H04R9/06 ,  H04R31/00 ,  C09J7/25 ,  B32B27/36 ,  B32B7/12 ,  B32B27/08

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：US20210120340A1

公开(公告)日：2021-04-22

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.