Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/114278
Kind Code:
A1
Abstract:
Provided is a sound production device, comprising a basket, and a vibration system and a magnetic circuit system which are used for driving the vibration system to vibrate for sound production and which are respectively fixed on the basket, wherein there is a magnetic gap in the magnetic circuit system; the vibration system comprises a vibrating diaphragm, a framework, a voice coil and an elastic supporting assembly; the vibrating diaphragm is fixed on the side of the basket away from the magnetic circuit system; the framework comprises a framework body fixed on the vibrating diaphragm, at least two first connecting arms that are respectively arranged at the outer side of the framework body and are spaced apart from the framework body, a second connecting arm used for connecting the framework body and the first connecting arms, and reinforcing ribs; the at least two first connecting arms are arranged at intervals; the reinforcing ribs and the framework body are arranged at intervals and are connected to two adjacent first connecting arms; the voice coil is connected to the side of the framework body away from the vibrating diaphragm and is inserted into the magnetic gap; and the elastic supporting assembly is fixed on the side of the basket away from the vibrating diaphragm, and the elastic supporting assembly is connected to the side of the first connecting arm away from the vibrating diaphragm. Compared with the prior art, the sound production device has high reliability.
Inventors:
SONG WEI (CN)
SHAO TAO (CN)
TAO WEIWEI (CN)
SHAO TAO (CN)
TAO WEIWEI (CN)
Application Number:
PCT/CN2019/125354
Publication Date:
June 17, 2021
Filing Date:
December 13, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R7/16
Foreign References:
| CN109348370A | 2019-02-15 | |||
| CN206413194U | 2017-08-15 | |||
| CN205491104U | 2016-08-17 | |||
| EP0778721A2 | 1997-06-11 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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