Title:
DIAPHRAGM AND LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2021/119912
Kind Code:
A1
Abstract:
The present application provides a diaphragm and a loudspeaker; the diaphragm comprises a dome located at the center, a folding ring part arranged surrounding the outer side of the dome, and a connecting part arranged surrounding the outer side of the folding ring part; the folding ring part comprises two oppositely arranged major axis sides, two oppositely arranged minor axis sides, and rounded corners connecting the adjacent major axis sides and minor axis sides; the folding ring comprises the inner wall of the folding ring adjacent to the dome, the outer wall of the folding ring opposite to the inner wall of the folding ring and connected to the connecting part, and the top wall connecting the inner wall of the folding ring to the outer wall of the folding ring; the thickness of the outer wall of the folding ring located on a rounded corner part is greater than the thickness of the inner wall of the folding ring located on the rounded corner; the thickness of the outer wall of the folding ring on the side of the minor axis is greater than the thickness of the inner wall of the folding ring on the side of the minor axis. In the present application, the thickness of the folding ring at the rounded corners of the diaphragm and the side of the minor axis is designed to be thick outside and thin inside, increasing the structural strength of the rounded corners and the outer side of the minor axis, ameliorating the problem that the outer side of the diaphragm easily becomes folded when the diaphragm vibrates up and down, and improving acoustic performance.
Inventors:
LIANG PING (CN)
ZHAO BIN (CN)
ZHAO BIN (CN)
Application Number:
PCT/CN2019/125630
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
Foreign References:
| CN208638572U | 2019-03-22 | |||
| CN109819378A | 2019-05-28 | |||
| CN203301721U | 2013-11-20 | |||
| US6176345B1 | 2001-01-23 | |||
| CN206698420U | 2017-12-01 | |||
| CN207135272U | 2018-03-23 | |||
| CN110191401A | 2019-08-30 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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