SOUND GENERATING DEVICE

WIPO Patent Application WO/2022/062106

A1

A sound generating device, comprising a vibration system for vibrating to generate sound and a magnetic circuit system that drives the vibration system to vibrate and generate sound. The vibration system comprises a diaphragm and a voice coil that drives the diaphragm to vibrate. The sound generating device further comprises a front cover provided on a side of the diaphragm away from the magnetic circuit system, the front cover is provided with a sound generating port that penetrates same, and the diaphragm comprises a vibration part, a folded ring part that is bent and extends from an outer peripheral edge of the vibration part, a fixed part that extends from a side of the folded ring part away from the vibration part, and a reinforcing part that protrudes from a side of the fixed part away from the magnetic circuit system. The front cover is coveringly provided on a side of the reinforcing part away from the fixed part. In comparison to related technology, the acoustic performance of the present sound generating device is better.

ZHANG LONG (CN)
ZHANG XUEFENG (CN)
DONG XIANJIE (CN)
YANG HUHU (CN)

PCT/CN2020/128041

March 31, 2022

November 11, 2020

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AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)

H04R7/22; H04R7/16; H04R9/06

CN210016613U	2020-02-04
CN110856082A	2020-02-28
CN211531292U	2020-09-18
CN208572411U	2019-03-01
CN208353597U	2019-01-08
CN208549021U	2019-02-26
CN105721994A	2016-06-29
US20180352336A1	2018-12-06
JP2018014693A	2018-01-25

SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)

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