Title:
DIAPHRAGM FOR MINIATURE SOUND GENERATION DEVICE AND MINIATURE SOUND GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/246179
Kind Code:
A1
Abstract:
The present invention relates to the technical field of acoustic products. Disclosed are a diaphragm for a miniature sound generation device and a miniature sound generation device. The diaphragm comprises a rubber film layer formed by means of a cross-linking reaction by using an acrylate polymer, wherein the acrylate polymer comprises a carboxylic acid group, and the cross-linking agent is an amine cross-linking agent. In the present invention, by using the acrylate polymer containing a carboxylic acid group and using the amine cross-linking agent, the cross-linking degree is effectively improved, such that the diaphragm has a good resilience and temperature resistance; in addition, the molding manner of the diaphragm is not limited, and the preparation cost is reduced; and the low-frequency performance of a miniature sound generation device is also improved, such that the miniature sound generation device has full bass and a comfortable listening feeling.
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Inventors:
HUI BING (CN)
LI CHUN (CN)
LING FENGGUANG (CN)
LI CHUN (CN)
LING FENGGUANG (CN)
Application Number:
PCT/CN2023/080413
Publication Date:
December 28, 2023
Filing Date:
March 09, 2023
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/02
Foreign References:
| CN109218924A | 2019-01-15 | |||
| CN106465015A | 2017-02-22 | |||
| CN111849103A | 2020-10-30 | |||
| CN111935603A | 2020-11-13 | |||
| US20180054677A1 | 2018-02-22 |
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