公开(公告)号：US10158937B2

公开(公告)日：2018-12-18

申请号：US15508052

申请日：2014-10-30

Applicant: GOERTEK INC.

Inventor： Shuai Shao ,  Chao Xu ,  Lianwen Shan

IPC: H04R1/28 ,  H04R1/02 ,  H04R1/06 ,  H04R9/02 ,  H04R9/06

Abstract: A speaker module comprising a module housing is disclosed. A speaker unit is accommodated within the module housing. A sound hole of the module is located at a side of the speaker unit. The speaker unit divides a cavity of the entire module into two cavities, namely a front acoustic cavity and a rear acoustic cavity. The front acoustic cavity is in communication with the sound hole. A sound-absorbing cotton is provided in the front acoustic cavity. The sound-absorbing cotton is fixed on the module housing, and is arranged to avoid a vibration space of a diaphragm of the speaker unit. The present invention effectively improves the performance of a sensitivity curve of the module at high frequencies without modifying the structure of the front acoustic cavity, thus not only increasing the acoustic performance of the module, but also simplifying the structure of the front acoustic cavity of the module.