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1. (WO2017181536) DIAPHRAGM AND MINIATURE SPEAKER HAVING SAME

Pub. No.:    WO/2017/181536    International Application No.:    PCT/CN2016/089370
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Sat Jul 09 01:59:59 CEST 2016
IPC: H04R 7/12
Applicants: GOERTEK INC
歌尔股份有限公司
Inventors: CHENG, Zhenzhen
程真真
GU, Jianhua
谷建华
WU, Zengxun
吴增勋
Title: DIAPHRAGM AND MINIATURE SPEAKER HAVING SAME
Abstract:
The invention relates to the field of electroacoustic technology, and specifically, to a diaphragm and a miniature speaker having the same. The diaphragm has a multi-layer composite structure comprising alternately stacked thermoplastic elastomer layers (20) and film layers (22). The diaphragm and the miniature speaker comprising the same resolve technical problems such as an unstable F0 and high total harmonic distortion of a miniature speaker in the prior art. The diaphragm and the miniature speaker according to the invention has low total harmonic distortion and a low damping coefficient, higher F0 stability, and high sound quality, satisfying requirements for sound quality of an electronic device