Title:
VIBRATING DIAPHRAGM, AND LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2021/119916
Kind Code:
A1
Abstract:
The present utility model provides a vibrating diaphragm, and a loudspeaker. The vibrating diaphragm comprises a dome located at the center, a suspension surrounding the outer side of the dome, and a connecting part surrounding the outer side of the suspension. The suspension comprises two long axis edges provided opposite to each other, two short axis edges provided opposite to each other, and rounded parts connecting adjacent long axis edges and short axis edges; the suspension comprises a suspension inner wall proximate to the dome, a suspension outer wall opposite to the suspension inner wall and connected to the connecting part, and a top wall connecting the suspension inner wall and the suspension outer wall; the thickness of the suspension outer wall at each rounded part is smaller than that of the suspension inner wall at each rounded part; the thickness of the suspension outer wall at each short axis edge is smaller than that of the suspension inner wall at each short axis edge. According to the present utility model, designing the thicknesses of the outer wall of the suspension at the rounded parts and short axis edges of the vibrating diaphragm to be thin and the thicknesses of the inner wall at the rounded parts and short axis edges to be thick can improve the structural strength of the inner side at the rounded parts and short axis edges, and the problem of easy breakage at the inner side when the vibrating diaphragm vibrates up and down is ameliorated, and the acoustic performance is improved.
Inventors:
LIANG PING (CN)
ZHAO BIN (CN)
ZHAO BIN (CN)
Application Number:
PCT/CN2019/125637
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
Domestic Patent References:
| WO2015174491A1 | 2015-11-19 |
Foreign References:
| CN208638573U | 2019-03-22 | |||
| CN209390353U | 2019-09-13 | |||
| US20180167734A1 | 2018-06-14 | |||
| CN107948894A | 2018-04-20 | |||
| CN106060723A | 2016-10-26 | |||
| CN110191401A | 2019-08-30 | |||
| CN109819378A | 2019-05-28 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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