Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/168935
Kind Code:
A1
Abstract:
Provided is a sound production device. The sound production device comprises a frame, and a vibration system and a voice coil assembly, which are respectively fixed on the frame, wherein the vibration system comprises a vibrating diaphragm fixed on the frame, a magnetic force assembly, which drives the vibrating diaphragm to vibrate and produce sound and has a magnetic gap, and an auxiliary vibrating diaphragm, which is arranged opposite the vibrating diaphragm at an interval and elastically supports the magnetic force assembly; and the voice coil assembly is fixed on a side of the frame that is away from the vibrating diaphragm, and is at least partially inserted into the magnetic gap. Compared with the related art, the sound production device of the present invention is simple in terms of structure, has a good reliability and an excellent acoustic performance.
Inventors:
YAN XUDONG (CN)
SHAO TAO (CN)
GU XIAOJIANG (CN)
SHAO TAO (CN)
GU XIAOJIANG (CN)
Application Number:
PCT/CN2020/080100
Publication Date:
September 02, 2021
Filing Date:
March 19, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/06
Foreign References:
| CN109362002A | 2019-02-19 | |||
| CN2622975Y | 2004-06-30 | |||
| CN106658312A | 2017-05-10 | |||
| CN209390313U | 2019-09-13 | |||
| US9674603B1 | 2017-06-06 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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