METHOD FOR MANUFACTURING LOUDSPEAKER DIAPHRAGM, LOUDSPEAKER AND ELECTRONIC DEVICE

WIPO Patent Application WO/2024/093803

A1

Provided in the present application are a method for manufacturing a loudspeaker diaphragm, a loudspeaker and an electronic device. The method comprises: adding nano-silver to a polythiophene solution to form a nano-silver/polythiophene slurry, wherein the nano-silver is uniformly dispersed in the polythiophene solution; coating a diaphragm substrate with the nano-silver/polythiophene slurry, and drying same to form a conductive layer on the diaphragm substrate; and preparing a loudspeaker diaphragm from the diaphragm substrate having the conductive layer, wherein the diaphragm substrate comprises a folded ring portion and a central portion, the folded ring portion surrounds the periphery of the central portion, the conductive layer is located on the folded ring portion, and the conductive layer extends from the folded ring portion to the central portion. By means of the method, the loudspeaker diaphragm has relatively good smoothness and conductivity, which helps to improve the sound quality of a loudspeaker.

PAN CHUNJIAO (CN)
XU ZHENXING (CN)
LIU YANG (CN)
QIN RENXUAN (CN)
CHEN ZHIPENG (CN)
XU CHAO (CN)
SHAN HAIBO (CN)
CHANG JING (CN)

PCT/CN2023/126909

May 10, 2024

October 26, 2023

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HUAWEI TECH CO LTD (CN)

H04R9/02; H04R9/06

CN107809705A	2018-03-16
US20070074316A1	2007-03-29
CN106398125A	2017-02-15
CN110620976A	2019-12-27
US20100135519A1	2010-06-03
KR20170142951A	2017-12-28

LONGSUN LEAD IP LTD. (CN)

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