Title:
DIAPHRAGM AND LOUDSPEAKER DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/006972
Kind Code:
A1
Abstract:
The present application relates to the technical field of electroacoustic devices, and in particular to a diaphragm and a loudspeaker device. The diaphragm comprises: a dome located in the center, a surround portion surrounding the dome, and a connection portion surrounding the surround portion. The surround portion comprises a first surround and a second surround connected to the first surround; arching directions of the first surround and the second surround are opposite. Compared with conventional diaphragms, the diaphragm in the present application meets the sound producing requirements of a loudspeaker device by changing the arching directions of the first surround and the second surround, the problems of high harmonic distortion and piano tone distortion can be avoided, and the internal space of the loudspeaker is increased.
Inventors:
WEI WEI (CN)
YIN ZHAOYU (CN)
YIN ZHAOYU (CN)
Application Number:
PCT/CN2020/102615
Publication Date:
January 13, 2022
Filing Date:
July 17, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R1/02; H04R7/18; H04R7/02
Domestic Patent References:
| WO2020140183A1 | 2020-07-09 |
Foreign References:
| CN208353599U | 2019-01-08 | |||
| CN208353598U | 2019-01-08 | |||
| CN207625786U | 2018-07-17 | |||
| CN206061116U | 2017-03-29 | |||
| CN207603908U | 2018-07-10 | |||
| US20150125024A1 | 2015-05-07 |
Attorney, Agent or Firm:
SHENZHEN CHINA INNOVATION SOUTH INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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