公开(公告)号：US20210120343A1

公开(公告)日：2021-04-22

申请号：US16975148

申请日：2018-12-24

Applicant: GOERTEK INC.

Inventor： Beijing ZHANG ,  Fengchao JIA

IPC: H04R9/06 ,  H04R1/28 ,  H04R9/02

Abstract: Provided in an embodiment of the present disclosure are a speaker module and an electronic device. The speaker module includes a speaker unit and a module housing, the speaker unit is mounted in an inner cavity that is encircled by the module housing, and a closed rear acoustic cavity is formed between the speaker unit and the module housing; the speaker unit is provided thereon with a unit leakage holes which is in communication with the rear acoustic cavity, and an air-permeable separation element is fixed on the unit leakage holes; at least one porous material frame is disposed in the rear acoustic cavity; a region other than the porous material frame disposed in the rear acoustic cavity is filled with sound-absorbing particles. The technical solution provided by the present disclosure may reduce the resonance frequency fluctuation range of the speaker, thereby improving the acoustic performance of the speaker module.