SOUND PRODUCTION PART

WIPO Patent Application WO/2024/087483

A1

One or more embodiments in the present description relate to a sound production part, comprising: a diaphragm; a magnetic circuit assembly; a coil, wherein the coil is connected to the diaphragm and is at least partially located in a magnetic gap formed by the magnetic circuit assembly, the coil drives the diaphragm to vibrate to generate sound after the coil is powered on, and the diaphragm comprises a main body region and a folded-ring region around the main body region; a support, which is arranged around the magnetic circuit assembly, wherein the support is connected to the part of the folded-ring region that is away from the main body region, and a plurality of vent holes are formed in the support; and a housing, which is provided with a pressure relief hole, wherein sound on a back side of the diaphragm is transmitted to the pressure relief hole through the plurality of vent holes, the plurality of vent holes at least comprise a first vent hole and a second vent hole, the distance between the center of the first vent hole and the center of the pressure relief hole is greater than the distance between the center of the second vent hole and the center of the pressure relief hole, and the area of the first vent hole is greater than that of the second vent hole.

ZHANG LEI (CN)
GU SHANYONG (CN)
ZHAO HONGQIANG (CN)
TONG PEIGENG (CN)
XIE GUOLIN (CN)
LI YONGJIAN (CN)
XU JIANG (CN)
ZHAO TAO (CN)
WU DUODUO (CN)
JI AO (CN)
QI XIN (CN)

PCT/CN2023/083537

May 02, 2024

March 24, 2023

Click for automatic bibliography generation  

SHENZHEN SHOKZ CO LTD (CN)
KING TONE INNOVATION BEIJING TECH CO LTD (CN)

H04R1/10; H04R9/06

WO2022000917A1

2022-01-06

CN111654789A	2020-09-11
CN107277718A	2017-10-20
CN114928800A	2022-08-19
CN216600066U	2022-05-24

METIS IP (CHENGDU) LLC et al. (CN)

View/Download PDF      PDF Help

Previous Patent: SOUND PRODUCTION COMPONENT

Next Patent: EARPHONE