Title:
VIBRATING DIAPHRAGM AND LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2021/119918
Kind Code:
A1
Abstract:
Provided in the present utility model are a vibrating diaphragm and a loudspeaker. The vibrating diaphragm comprises a dome located at the central position and a bending ring part surrounding the outer side of the dome; the bending ring part comprises an inner connecting part fixedly connected to the edge of the dome, an outer connecting part arranged at an interval with the inner connecting part, and a bending part connected between the inner connecting part and the outer connecting part; the dome comprises two oppositely-arranged first side edges, two oppositely-arranged second side edges and corner parts connecting adjacent first side edges and second side edges; the bending part comprises an inner bending part bending and extending from the inner connecting part to a position away from the plane where the dome is located and an outer bending part connected between the inner bending part and the outer connecting part, wherein the thickness of the inner bending part corresponding to the corner part is less than that of the adjacent outer bending part. The present utility model improves the structural strength of the outer side of the bending part of the bending ring corresponding to the corner part of the dome, solves the problem that the outer side is easy to bend when the vibrating diaphragm vibrates up and down, and improves acoustic performance.
Inventors:
LIANG PING (CN)
ZHAO BIN (CN)
ZHAO BIN (CN)
Application Number:
PCT/CN2019/125642
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:
| CN109819378A | 2019-05-28 | |||
| CN208638573U | 2019-03-22 | |||
| US6176345B1 | 2001-01-23 | |||
| CN110191401A | 2019-08-30 | |||
| CN207135272U | 2018-03-23 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: