Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/193321
Kind Code:
A1
Abstract:
A sound production device, comprising a shell having an accommodating cavity and a sound production driver arranged in the accommodating cavity, wherein the sound production driver comprises a vibration system located in the accommodating cavity, and a magnetic circuit system for driving the vibration system to vibrate and produce sound in a first direction. The sound production device further comprises: a box body located in the accommodating cavity; a coil, which is arranged on the side of the magnetic circuit system away from the vibration system and is spaced apart from the magnetic circuit system; a circuit board arranged on the side of the shell that faces the coil and is electrically connected to the coil; and an elastic assembly having one end connected to the shell and the other end connected to the box body, wherein the vibration system and the magnetic circuit system are arranged in the box body, the coil is fixed to the shell so as to drive the sound production driver to vibrate in a second direction, the second direction is configured to be perpendicular to the first direction, and the elastic assembly is configured to suspend the box body in the accommodating cavity. The coil and the vibration system share one magnetic circuit system, and the sound production driver directly serves as a quality unit of the coil, so that components are shared to the maximum possible extent, thereby simplifying an assembly process and saving on costs.
Inventors:
SONG WEI (CN)
JIN XIN (CN)
ZHANG FAN (CN)
LINGHU RONGLIN (CN)
XIAO BO (CN)
JIN XIN (CN)
ZHANG FAN (CN)
LINGHU RONGLIN (CN)
XIAO BO (CN)
Application Number:
PCT/CN2022/090945
Publication Date:
October 12, 2023
Filing Date:
May 05, 2022
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R1/02
Domestic Patent References:
| WO2022006923A1 | 2022-01-13 | |||
| WO2022061987A1 | 2022-03-31 |
Foreign References:
| CN214901293U | 2021-11-26 | |||
| CN104883649A | 2015-09-02 | |||
| JP2011119913A | 2011-06-16 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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