Title:
SOUND GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/040495
Kind Code:
A1
Abstract:
The present utility model provides a sound generation device. The device comprises: a tray frame, a vibration system, and a magnetic circuit system. The vibration system comprises a diaphragm assembly, and a voice coil inserted into a magnetic gap; the diaphragm assembly comprises a diaphragm support secured to the tray frame, and a diaphragm secured to the diaphragm support and used for vibrating and generating sound; the diaphragm comprises a first planar component having an opening, an annular folding ring component arranged on an outer side of the first planar component, and a connection component arranged on an outer side of the folding ring component and securely connected to the diaphragm support; the diaphragm assembly further comprises a water-resistant breathable film secured to the first planar component; the first planar component comprises a first inner edge located away from the folding ring component; observed along the direction of vibration, the first inner edge is located at an inner side of the voice coil, and an outer edge of the water-resistant breathable film is located on an outer side of the voice coil. Compared with the related art, the sound generation device of the present utility model has better water-resistance performance.
Inventors:
ZHANG LONG (CN)
DU XIWEN (CN)
MA LIPENG (CN)
DU XIWEN (CN)
MA LIPENG (CN)
Application Number:
PCT/CN2022/114687
Publication Date:
February 29, 2024
Filing Date:
August 25, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN110798785A | 2020-02-14 | |||
| CN111601220A | 2020-08-28 | |||
| CN209897256U | 2020-01-03 | |||
| CN203492196U | 2014-03-19 |
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