Title:
SOUND GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/232454
Kind Code:
A1
Abstract:
Provided is a sound generation device comprising a housing having an accommodating space, a vibration system accommodated inside the accommodating space and a magnetic circuit system that drives the vibration system to vibrate. By arranging a first hole and a second hole respectively on an upper clamping plate and a main magnetic steel assembly of the magnetic circuit system, and using a positioning block to penetrate and fix the first hole and the second hole, the magnetic circuit system can be positioned and fixed during the assembly and sound generation process of the sound generation device. The stability and reliability of the sound generation device are enhanced, and the acoustic performance and service life of the sound generation device are significantly improved.
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Inventors:
XIAO BO (CN)
LINGHU RONGLIN (CN)
LINGHU RONGLIN (CN)
Application Number:
PCT/CN2020/092465
Publication Date:
November 25, 2021
Filing Date:
May 27, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/02
Domestic Patent References:
| WO2018103309A1 | 2018-06-14 |
Foreign References:
| CN105933832A | 2016-09-07 | |||
| CN205793270U | 2016-12-07 | |||
| CN204069320U | 2014-12-31 | |||
| CN205040017U | 2016-02-17 | |||
| CN205847571U | 2016-12-28 |
Attorney, Agent or Firm:
SHENZHEN CHINA INNOVATION SOUTH INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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