Title:
VIBRATING DIAPHRAGM AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/119994
Kind Code:
A1
Abstract:
Disclosed in the utility model is a vibrating diaphragm, comprising a middle part, a folding ring part arranged on the outer side of the middle part in a surrounding manner, and a fixing part arranged on the outer side of the folding ring part in a surrounding manner. The folding ring part is of a rectangular structure, and comprises two first edges, which are arranged parallel to the direction of a long axis thereof, two second edges, which are arranged parallel to the direction of a short axis thereof, a corner part, by means of which an adjacent first edge and second edge are connected, and a reinforcing layer, which is arranged on the corner part, wherein the reinforcing layer is respectively attached to a surface of each of the four corner parts and forms a composite fillet with the respective corner part, and the thickness of the composite fillet is greater than the thickness of the first edge and the thickness of the second edge. Compared with related technology, in the vibrating diaphragm and the sound production device of the present utility model, the vibrating diaphragm is improved in terms of anti-swing rigidity.
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Inventors:
XIAO BO (CN)
LINGHU RONGLIN (CN)
LINGHU RONGLIN (CN)
Application Number:
PCT/CN2019/125949
Publication Date:
June 24, 2021
Filing Date:
December 17, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R7/14
Foreign References:
| CN110191401A | 2019-08-30 | |||
| CN107948894A | 2018-04-20 | |||
| CN106817658A | 2017-06-09 | |||
| CN205647941U | 2016-10-12 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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