Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/114211
Kind Code:
A1
Abstract:
Disclosed is a sound production device, comprising a basket frame, and a vibration system and a magnetic circuit system, which are separately fixed to the basket frame, the magnetic circuit system being provided with a magnetic gap, wherein the vibration system comprises a vibrating diaphragm fixed to the basket frame, a voice coil, which is inserted in the magnetic gap and drives the vibrating diaphragm to vibrate for sound production, an auxiliary vibrating member, which is fixed to the basket frame and arranged opposite the vibrating diaphragm at an interval, an elastic conductive member, and a framework connecting the auxiliary vibrating member and the vibrating diaphragm; the elastic conductive member comprises a fixed arm fixed to the basket frame, a connecting arm, which is attached to one side of the vibrating diaphragm that is close to the voice coil, and an elastic arm connecting the fixed arm and the connecting arm; the connecting arm is electrically connected to the voice coil; and the elastic arm is spaced apart from the vibrating diaphragm and is suspended below the vibrating diaphragm. Compared with the prior art, the sound production device of the present invention has a good stability and a good acoustic performance.
Inventors:
SONG WEI (CN)
ZHANG FAN (CN)
ZHANG FAN (CN)
Application Number:
PCT/CN2019/125075
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:
| CN109348373A | 2019-02-15 | |||
| CN208924476U | 2019-05-31 | |||
| CN208798207U | 2019-04-26 | |||
| US20180220238A1 | 2018-08-02 | |||
| US20170366900A1 | 2017-12-21 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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