DOME AND DIAPHRAGM ASSEMBLY FOR SOUND-PRODUCING APPARATUS, SOUND-PRODUCING APPARATUS, AND ELECTRONIC DEVICE

WIPO Patent Application WO/2024/001246

A1

Disclosed in the present invention are a dome and a diaphragm assembly for a sound-producing apparatus, a sound-producing apparatus, and an electronic device. The dome comprises an organic aerogel matrix and a reinforcing material dispersed in the organic aerogel matrix. The mass of the organic aerogel matrix accounts for 10% to 95% of the total mass of the dome, and the modulus density ratio of the dome is greater than or equal to 5 GPa·cm3/g. According to the present invention, the dome has a light weight, and thus facilitates meeting the design requirements of lightening, thinning and miniaturization of the sound-producing apparatus, and can also reduce the resonance frequency of the sound-producing apparatus and improve the medium-frequency sensitivity thereof. In addition, the reinforcing material is dispersed in the organic aerogel matrix, and the organic aerogel has low-density features, so that the prepared dome has a relatively high modulus density ratio, has both rigidity and damping properties, and when being applied to the sound-producing apparatus, can improve the structural stability thereof and obtain a relatively high high-frequency cut-off frequency, thereby improving the acoustic reliability of the sound-producing apparatus.

ZHANG HAITAO (CN)
LI MEILING (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
ZHANG CHENGFEI (CN)

PCT/CN2023/078106

January 04, 2024

February 24, 2023

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GOERTEK INC (CN)

H04R7/12

WO2022000633A1

2022-01-06

CN111417063A	2020-07-14
CN213186539U	2021-05-11
CN115134720A	2022-09-30
CN109819379A	2019-05-28
CN112866879A	2021-05-28

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