Title:
MULTIFUNCTIONAL SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/087295
Kind Code:
A1
Abstract:
Provided in the embodiments of the present utility model is a multifunctional sound production device, which comprises a housing having an accommodating space, and a sound production unit and a motor assembly which are accommodated in the accommodating space, wherein the sound production unit comprises a frame, a vibration system, and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate to produce sound; the magnetic circuit system comprises a primary magnetic circuit, and a first secondary magnetic circuit and a second secondary magnetic circuit, which each surround the primary magnetic circuit and are spaced apart from the primary magnetic circuit to form the magnetic gap; the motor assembly comprises a vibration unit arranged at the side of the magnetic circuit system away from the vibration system, and elastic members suspending the vibration unit in the accommodating space; the vibration unit comprises driving coils; the primary magnetic circuit is fixed to the housing; the first secondary magnetic circuit is fixed to the housing; and the second secondary magnetic circuit is fixed to the vibration unit. Compared with the related art, the multifunctional sound production device of the present utility model has low overall thickness, is of a small size, and has excellent acoustic performance.
Inventors:
JIN XIN (CN)
ZHANG FAN (CN)
LINGHU RONGLIN (CN)
SONG WEI (CN)
ZHANG FAN (CN)
LINGHU RONGLIN (CN)
SONG WEI (CN)
Application Number:
PCT/CN2022/134573
Publication Date:
May 02, 2024
Filing Date:
November 28, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06
Domestic Patent References:
| WO2021238074A1 | 2021-12-02 |
Foreign References:
| CN217216884U | 2022-08-16 | |||
| CN105101022A | 2015-11-25 | |||
| CN109862477A | 2019-06-07 | |||
| CN209897257U | 2020-01-03 | |||
| US20190020954A1 | 2019-01-17 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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