公开(公告)号：US20170188155A1

公开(公告)日：2017-06-29

申请号：US15313937

申请日：2014-09-09

Applicant: GOERTEK INC.

Inventor： Xuelu LIU ,  Jianbin YANG ,  Ting WANG ,  Chao JIANG

IPC: H04R7/12 ,  H04R9/06

CPC classification number: H04R7/125 ,  H04R7/06 ,  H04R7/127 ,  H04R9/06 ,  H04R2307/025

Abstract: The present application provides a loudspeaker diaphragm, comprising a first surface layer, a middle layer and a second surface layer, that are in a stacked structure. The loudspeaker diaphragm is characterized in that: at least one surface layer of the first surface layer and the second surface layer has a composite structure which is composed of a base layer and a reinforcing layer, and the other surface layer comprises a base layer; the base layer is a poly(ether-ether-ketone) layer, a polyarylester layer, a polyethylene terephthalate layer, a polyetherimide layer or a composite structure composed of any two of the above layers, and the reinforcing layer is a thermoplastic polyurethane elastomer layer or a thermoplastic elastomer layer. The loudspeaker diaphragm can reduce diaphragm breakage after power test is performed on a loudspeaker product, improve substrate toughness and improve acoustical property of the loudspeaker.

公开(公告)号：US20230034424A1

公开(公告)日：2023-02-02

申请号：US17758992

申请日：2020-11-17

Applicant: GOERTEK INC.

Inventor： Xiaodong CAI ,  Ting WANG

IPC: H04R7/02 ,  H04R1/02

Abstract: Provided in the present disclosure is a diaphragm, comprising a diaphragm body, wherein the diaphragm body comprises a fixing portion at an outer side, a bendable ring portion provided protruding from an inner ring side of the fixing portion and elastically bendable, and an inner side portion at an inner ring side of the bendable ring portion, the diaphragm body is made of a waterproof and breathable material having waterproof and breathable micropores. According to the present disclosure, the diaphragm body is made of waterproof and breathable material having waterproof and breathable micropores so that the diaphragm body has micropores, and the sizes of the micropores are between the size of water molecules and the size of air molecules, such that air molecules can smoothly pass through the diaphragm, while the water molecules can be effectively prevented from passing therethrough.

公开(公告)号：US20240251215A1

公开(公告)日：2024-07-25

申请号：US18561760

申请日：2022-05-26

Applicant: GOERTEK INC.

Inventor： Ting WANG ,  Chun LI ,  Qiulin WEI

IPC: H04R31/00 ,  H04R7/04

CPC classification number: H04R31/003 ,  H04R7/04 ,  H04R2307/025

Abstract: The present invention relates to a diaphragm for sound generating devices and a preparation method thereof, and a sound generating device. The diaphragm for sound generating devices comprises only one layer of a thermoplastic polyester elastomer film, wherein the thermoplastic polyester elastomer is formed by copolymerization of a polyester hard segment which is prepared by reacting an aromatic dicarboxylic acid with a dihydric alcohol and a soft segment containing an aliphatic polycarbonate, and the diaphragm has a thickness of 10-200 □m, and a loss factor of 0.1-0.3 at a temperature of 23° C. The thermoplastic polyester elastomer used for the diaphragm of the present invention is composed of the polyester hard segment and the aliphatic polycarbonate soft segment, and such material not only solves the problem that the existing thermoplastic elastomers have poor resistances to high temperatures and chemicals, but also improves sensitivity, and can also well achieve the basic properties such as stiffness, resilience and damping required by vibration of the diaphragm.