Title:
SOUND GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/128330
Kind Code:
A1
Abstract:
Provided is a sound generation device, comprising a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system comprises an annular upper vibrating diaphragm, a lower vibrating diaphragm, a voice coil, an upper framework, a lower framework, and an isolation vibrating diaphragm; the upper vibrating diaphragm is fixed to the basin frame; the lower vibrating diaphragm is arranged at an interval around the magnetic circuit system, and an outer peripheral side of the lower vibrating diaphragm is fixed to the basin frame; the upper framework is connected to the upper vibrating diaphragm and the voice coil, respectively; the lower framework is connected to the lower vibrating diaphragm and the voice coil, respectively; and an outer peripheral side of the isolation vibrating diaphragm is connected to the basin frame body, and an inner peripheral side thereof is connected to the lower framework. Compared with the related art, the sound generation device of the present invention has a higher acoustic loudness and a better acoustic performance.
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| WO/2014/169805 | SPEAKER MODULE |
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| WO/2001/076316 | DEFORMABLE LOUDSPEAKER |
Inventors:
SONG WEI (CN)
ZHANG FAN (CN)
JIN XIN (CN)
ZHANG FAN (CN)
JIN XIN (CN)
Application Number:
PCT/CN2019/129400
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; H04R7/12
Foreign References:
| CN109547898A | 2019-03-29 | |||
| CN109547898A | 2019-03-29 | |||
| CN109379679A | 2019-02-22 | |||
| CN110099341A | 2019-08-06 | |||
| CN109362002A | 2019-02-19 | |||
| CN109362002A | 2019-02-19 | |||
| US20180332400A1 | 2018-11-15 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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