Title:
SOUND-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/007164
Kind Code:
A1
Abstract:
Disclosed is a sound-emitting device, comprising a vibration system and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate; said vibration system comprises a diaphragm used for vibrating and emitting sound, a voice coil insertedly disposed in the magnetic gap to drive the diaphragm to vibrate and emit sound, and a frame connecting the diaphragm and the voice coil; the diaphragm comprises a vibration part, a folding ring part bent and extended outward from the periphery of the vibration part, and a fixing part bent and extended from a side of the folding ring part away from the vibration part; the frame comprises a main body part attached and fixed to the side of the vibrating part adjacent to the magnetic circuit system and an extension part bent and extended from the periphery of the main body part in a direction away from the diaphragm; the main body part is in the shape of a flat plate and serves a dome structure; the extension part is connected to the voice coil and suspends the voice coil in the magnetic gap. In comparison with the related art, the assembly process of the sound-emitting device of the present utility model is simple, low in cost, and has better acoustic performance.
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Inventors:
CAO CHENGMING (CN)
WANG LEI (CN)
ZHANG FAN (CN)
WANG LEI (CN)
ZHANG FAN (CN)
Application Number:
PCT/CN2020/113927
Publication Date:
January 13, 2022
Filing Date:
September 08, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R7/02; H04R9/02; H04R7/04; H04R9/06
Foreign References:
| CN209659595U | 2019-11-19 | |||
| CN209201338U | 2019-08-02 | |||
| CN203387677U | 2014-01-08 | |||
| JP2006217122A | 2006-08-17 | |||
| CN208638620U | 2019-03-22 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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