Title:
SOUND PRODUCTION DEVICE AND SPEAKER BOX THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/128334
Kind Code:
A1
Abstract:
Provided in the present invention is a sound production device, comprising a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system for driving the vibration system to vibrate to produce sound; the magnetic circuit system has a magnetic gap; the vibration system comprises a diaphragm, an elastic electrically conductive member, a framework, and a voice coil; the elastic electrically conductive member comprises a first fixed arm connected to the basin frame, a second fixed arm spaced apart from the first fixed arm, a first elastic arm connecting the first fixed arm and the second fixed arm, and a solder pad extending from the second fixed arm; the framework comprises a framework body supported on the second fixed arm and connected to the diaphragm and an extension wall extending in a bent manner from the framework body, the extension wall partially extending into the magnetic gap; and the voice coil comprises a voice coil body fixed to the extension wall and being inserted into the magnetic gap and a voice coil lead extending in a bent manner from the voice coil body in the direction of the solder pad and being electrically connected to the solder pad, the voice coil lead being attached to the extension wall and extending along the extension wall to the solder pad. Compared to the prior art, the sound production device and speaker box of the present invention are highly reliable.
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Inventors:
SONG WEI (CN)
ZHANG FAN (CN)
JIN XIN (CN)
ZHANG FAN (CN)
JIN XIN (CN)
Application Number:
PCT/CN2019/129405
Publication Date:
July 01, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/04; H04R9/06
Foreign References:
| CN207968942U | 2018-10-12 | |||
| CN207251908U | 2018-04-17 | |||
| CN206350158U | 2017-07-21 | |||
| US20080268793A1 | 2008-10-30 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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