公开(公告)号：US20240040319A1

公开(公告)日：2024-02-01

申请号：US18264256

申请日：2021-08-25

Applicant: GOERTEK INC.

Inventor： Quanquan PAN ,  Fengguang LING ,  Chun LI

IPC: H04R9/02 ,  H04R9/06

CPC classification number: H04R9/025 ,  H04R9/06

Abstract: Disclosed is a sound generating device. The sound generating device includes a sound generating unit, a plurality of magnetic sound-absorbing particles, and a housing having a cavity, wherein the sound generating unit is accommodated in the cavity, and the sound generating unit divides the cavity into a front cavity and a rear cavity, and the magnetic sound-absorbing particles are filled in the front cavity and/or the rear cavity, and a magnetic attraction force is exerted between the a plurality of magnetic sound-absorbing particles. In the disclosure, magnetic sound-absorbing particles are used to achieve a virtual increase effect in a resonance space of the acoustic rear cavity of the sound generating device, the magnetic sound-absorbing particles attract each other and attached together, thereby restricting the free flow between the particles, reducing the phenomenon that the magnetic sound-absorbing particles break, and effectively protecting the acoustic performance of the sound generating device.