公开(公告)号：US11962969B2

公开(公告)日：2024-04-16

申请号：US17415315

申请日：2019-12-17

Applicant: GOERTEK INC.

Inventor： Chunfa Liu ,  Tongyan Xu ,  Chengfei Zhang

IPC: H04R7/04 ,  H04R1/28 ,  H04R9/06

CPC classification number: H04R1/2842 ,  H04R7/04 ,  H04R9/06 ,  H04R2499/11

Abstract: An acoustic device comprises a sound generating unit having a vibration diaphragm, the acoustic device is provided with a sound outlet, the sound waves at a front side of the vibration diaphragm radiates to the outside through the sound outlet; and an enclosed closed cavity formed at a rear side of the vibration diaphragm, the closed cavity is divided into first and second closed cavities by a partition part, and at least a portion of the partition part flexibly deforms, the first closed cavity is adjacent to the vibration diaphragm, the second closed cavity is far away from the vibration diaphragm, the volume of the second closed cavity is larger than that of the first closed cavity; the second closed cavity encloses the sound waves into the second closed cavity; at least a part of an electronic apparatus housing is used for forming the first and/or the second closed cavity.

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：US11516588B2

公开(公告)日：2022-11-29

申请号：US17256279

申请日：2018-12-29

Applicant: Goertek Inc.

Inventor： Xinglong Wang ,  Lianshan Ge ,  Chunfa Liu

IPC: H04R9/02 ,  H04R9/06

Abstract: Disclosed in the present invention are a sound generation device and a portable terminal. The sound generation device comprises a vibration system and a magnetic circuit system, the vibration system and the magnetic circuit system being mounted and fixed to an housing. The housing comprises a first shell and a second shell that are connected and fixed together, the vibration system comprises a first diaphragm and the magnetic circuit system comprises a magnetic yoke, and wherein the first diaphragm is mounted on one surface of the first shell far away from the second shell, and the magnetic yoke and the second shell are injection molded as an integrated part. In the sound generation device of the present invention a conventional plastic housing is split into two shells, by fixing the magnetic yoke to the second shell by injection molding so that the magnetic yoke and the second shell become an independent part which is integrally arranged, it can reduce the assembling process of the Magnetic yoke and the housing, improve the assembling efficiency and connecting strength of the sound generation device, and can provide a bigger space for the magnetic circuit system and improve the product performance.

公开(公告)号：US11483660B2

公开(公告)日：2022-10-25

申请号：US17256343

申请日：2018-12-29

Applicant: GOERTEK INC.

Inventor： Xinglong Wang ,  Guodong Zhao ,  Lianshan Ge ,  Chunfa Liu

IPC: H04R9/06 ,  H04R1/28 ,  H04R9/02

Abstract: The present invention discloses a sound production apparatus, comprising a first vibration system, a second vibration system and a magnetic circuit system, wherein the first vibration system comprises a first diaphragm and a voice coil arranged on a side, facing the magnetic circuit system, of the first diaphragm; the second vibration system comprises a second diaphragm arranged opposite to the first diaphragm, and a middle position of the second diaphragm is combined with a reinforcement portion; the reinforcement portion is provided with an extension portion extending along a direction close to the first diaphragm, and a position, corresponding to the extension portion, in the magnetic circuit system is provided with an avoidance portion; and the extension portion is capable of passing through the avoidance portion, and is fixed to the first diaphragm. The sound production apparatus of the present invention is configured with two sets of vibration systems but only adopts one set of a voice coil and magnetic circuit system, so as to realize a structure for synchronized bidirectional sound production, occupying a small volume, facilitating its wide application to portable terminals.

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：US20210266671A1

公开(公告)日：2021-08-26

申请号：US17256279

申请日：2018-12-29

Applicant: Goertek Inc.

Inventor： Xinglong Wang ,  Lianshan Ge ,  Chunfa Liu

IPC: H04R9/02 ,  H04R9/06

Abstract: Disclosed in the present invention are a sound generation device and a portable terminal. The sound generation device comprises a vibration system and a magnetic circuit system, the vibration system and the magnetic circuit system being mounted and fixed to an housing. The housing comprises a first shell and a second shell that are connected and fixed together, the vibration system comprises a first diaphragm and the magnetic circuit system comprises a magnetic yoke, and wherein the first diaphragm is mounted on one surface of the first shell far away from the second shell, and the magnetic yoke and the second shell are injection molded as an integrated part. In the sound generation device of the present invention a conventional plastic housing is split into two shells, by fixing the magnetic yoke to the second shell by injection molding so that the magnetic yoke and the second shell become an independent part which is integrally arranged, it can reduce the assembling process of the Magnetic yoke and the housing, improve the assembling efficiency and connecting strength of the sound generation device, and can provide a bigger space for the magnetic circuit system and improve the product performance.

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：US10763732B2

公开(公告)日：2020-09-01

申请号：US15778816

申请日：2016-05-20

Applicant: Goertek Inc.

Inventor： Chunfa Liu ,  Fenglei Zu

IPC: H02K33/02 ,  H02K1/34 ,  H02K33/18 ,  H02K5/04

Abstract: A linear vibration motor comprises: a motor housing, a stator, a vibrator, and at least two sets of elastic support assemblies for suspending the vibrator in the motor housing and for supporting the vibrator and providing an elastic restoring force. The elastic support assemblies are located between the inner wall of the motor housing and the vibrator, each set of the elastic support assemblies comprising at least two elastic supports. The elastic support comprises a first connection point fixedly connected to the vibrator and a second connection point fixedly connected to the inner wall of the motor housing. The second connection point is coupled to a side wall of the motor housing parallel to the vibration direction of the vibrator. The first connection point and the second connection point of the elastic support are located at the same side of the central axis of the vibrator parallel to the vibration direction of the transducer. The structure of the linear vibration motor is simplified, the vibration support assemblies have better vibration effect, and give the user a good experience.