Title:
MULTIFUNCTIONAL SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/087301
Kind Code:
A1
Abstract:
The present utility model provides a multifunctional sound production device, comprising a housing having an accommodating space and a sound production unit. The housing is provided with a sound outlet running through the housing; the sound production unit comprises a basket, a vibration system, and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate and produce sound; the magnetic circuit system comprises a primary magnetic circuit, and a first secondary magnetic circuit and a second secondary magnetic circuit separately surrounding the primary magnetic circuit and spaced apart from the primary magnetic circuit to form the magnetic gap. The multifunctional sound production device further comprises a motor assembly accommodated in the accommodating space, the motor assembly comprises a vibration unit arranged on the side of the magnetic circuit system away from the vibration system and elastic members for suspending the vibration unit in the accommodating space, the vibration unit comprises driving coils, and the driving coils are located on the side of the first secondary magnetic circuit away from the vibration system; the primary magnetic circuit and the second secondary magnetic circuit are fixed to the vibration unit; the first secondary magnetic circuit is fixed to the housing. Compared with the related art, the multifunctional sound production device of the present utility model has a small overall thickness, a small volume, and 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/CN2022/134612
Publication Date:
May 02, 2024
Filing Date:
November 28, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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