SOUND PRODUCTION DEVICE - AAC ACOUSTIC TECH SHENZHEN CO LTD

Title:

SOUND PRODUCTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2022/067974

Kind Code:

A1

Abstract:

Provided is a sound production device, comprising a basket frame, and a vibration system and a magnetic circuit system, which drives the vibration system to vibrate to produce sound and has a magnetic gap, respectively fixed to the basket frame, wherein the vibration system comprises a diaphragm fixed to the basket frame, and a voice coil inserted into the magnetic gap to drive the diaphragm to vibrate to produce sound; the vibration system further comprises a support plate fixed to the side of the basket frame away from the diaphragm; the support plate comprises a first support portion fixed to the side of the basket frame away from the diaphragm, and a second support portion extending towards the voice coil from the first support portion; and the vibration system further comprises an elastic conductive member supported and fixed to the side of the first support portion close to the diaphragm and electrically connected to the voice coil, and an auxiliary diaphragm supported and fixed to the side of the second support portion close to the diaphragm. Compared with the related art, the sound production device of the present invention has a better space utilization rate.

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Inventors:

SONG WEI (CN)
LINGHU RONGLIN (CN)
XIAO BO (CN)
KONG CHENLIANG (CN)
ZHANG TONG (CN)

Application Number:

PCT/CN2020/127831

Publication Date:

April 07, 2022

Filing Date:

November 10, 2020

Export Citation:

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Assignee:

AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)

International Classes:

H04R7/02

Foreign References:

CN112261546A	2021-01-22
CN110022517A	2019-07-16
CN210120658U	2020-02-28
CN209659603U	2019-11-19
US20090180648A1	2009-07-16