Title:
DIAPHRAGM AND LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2021/119914
Kind Code:
A1
Abstract:
Provided by the present utility model are a diaphragm and a loudspeaker. The diaphragm comprises a dome located at a central position, a folding ring part arranged around the outside of the dome and a connecting part arranged around the outside of the folding ring part. The folding ring part comprises two opposite long axis edges, two opposite short axis edges, and rounded corner parts connecting adjacent long axis edges and short axis edges. The folding ring part comprises a folding ring inner wall near the dome, a folding ring outer wall that is opposite to the folding ring inner wall and connected to the connecting part, and a top wall connecting the folding ring inner wall and the folding ring outer wall. The thickness of the folding ring outer wall located on the rounded corner parts is less than the thickness of the folding ring inner wall located on the rounded corner parts, and the thickness of the folding ring outer wall on the long axis edges is less than the thickness of the folding ring inner wall on the long axis edges. The present utility model designs the thickness of a folding ring at rounded corners of the diaphragm and at long axis edges to be thin outside and thick inside, which can improve the structural strength of the rounded corners and the inner side of the long axis edges, solve the problem in which the inner side is easily broken when the diaphragm vibrates up and down, and improve the acoustic performance.
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Inventors:
LIANG PING (CN)
ZHAO BIN (CN)
ZHAO BIN (CN)
Application Number:
PCT/CN2019/125634
Publication Date:
June 24, 2021
Filing Date:
December 16, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R7/12; H04R9/02; H04R9/06
Foreign References:
| CN208638573U | 2019-03-22 | |||
| CN209390353U | 2019-09-13 | |||
| CN208638572U | 2019-03-22 | |||
| CN110198507A | 2019-09-03 | |||
| CN206698420U | 2017-12-01 | |||
| EP3174311A1 | 2017-05-31 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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