公开(公告)号：US11128945B2

公开(公告)日：2021-09-21

申请号：US16312098

申请日：2016-12-31

Applicant: Goertek Inc.

Inventor： Yang Hua ,  Ze Wang ,  Hongwei Zhou ,  Dehua Li

IPC: H04R1/10 ,  H04R3/08 ,  H04R1/28 ,  H04R5/033 ,  H04R3/00

Abstract: The present disclosure discloses a loudspeaker and a method for improving directivity of a sound of a loudspeaker, a head-mounted device and a method for improving a sound effect of a head-mounted device. The loudspeaker comprises: a housing, a magnetic circuit unit that is provided within the housing and is for generating a magnetic force, a voice coil that vibrates by the magnetic force, and a vibrating diaphragm that in response to the vibration of the voice coil vibrates and generates a sound; wherein the loudspeaker further comprises a curved-surface extension structure; the curved-surface extension structure connects to the vibrating diaphragm, and radiating the sound generated by the vibrating diaphragm into a predetermined directivity range.