Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/000677
Kind Code:
A1
Abstract:
The present application provides a sound production device, comprising a frame, and a vibration system and a magnetic circuit system having a magnetic gap which are respectively supported on the frame. The vibration system comprises a diaphragm, a voice coil inserted into the magnetic gap to drive the diaphragm to vibrate and produce sound, and a bobbin connecting the diaphragm to the voice coil; the diaphragm comprises an annular dome portion, an annular first edge portion, and an annular second edge portion; the dome portion is located between the first edge portion and the second edge portion and connected to the first edge portion and the second edge portion; the bobbin comprises a bobbin flat wall and a bobbin glue accommodating portion bending from the bobbin flat wall to the magnetic circuit system, the bobbin flat wall is connected to the dome portion, and the bobbin glue accommodating portion is spaced apart from the dome portion. Compared with the prior art, the sound production device of the present application has a wider frequency band and better high-frequency performance.
Inventors:
REN ZHANG (CN)
ZHONG ZHI WEI (CN)
ZHONG ZHI WEI (CN)
Application Number:
PCT/CN2022/106635
Publication Date:
January 04, 2024
Filing Date:
July 20, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN216134591U | 2022-03-25 | |||
| CN208638659U | 2019-03-22 | |||
| CN216134592U | 2022-03-25 | |||
| CN213462268U | 2021-06-15 | |||
| CN213754942U | 2021-07-20 | |||
| JP2000059888A | 2000-02-25 |
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