Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/128336
Kind Code:
A1
Abstract:
The present utility model provides a sound production device, comprising a basin frame, a vibration system and a magnetic circuit system which are respectively fixed to the basin frame, the magnetic circuit system driving the vibration system to vibrate and produce sound; the magnetic circuit system has a magnetic gap, the vibration system comprises a vibrating diaphragm, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate, and a framework connected to the vibrating diaphragm, and at least a portion of a side, close to the vibrating diaphragm, of the framework is embedded in the vibrating diaphragm, and the basin frame, the vibrating diaphragm and the framework are integrated by means of injection molding. Compared with the related art, the sound production device of the present utility model avoids the influence of glue on the acoustic performance of the sound production device, and improves the sound production effect of the sound production device.
Inventors:
SONG WEI (CN)
ZHANG FAN (CN)
JIN XIN (CN)
ZHANG FAN (CN)
JIN XIN (CN)
Application Number:
PCT/CN2019/129409
Publication Date:
July 01, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/06; H04R7/16
Foreign References:
| CN209526876U | 2019-10-22 | |||
| CN105050012A | 2015-11-11 | |||
| CN208549021U | 2019-02-26 | |||
| CN109348370A | 2019-02-15 | |||
| CN203387677U | 2014-01-08 | |||
| US5627904A | 1997-05-06 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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