Title:
VIBRATING DIAPHRAGM FOR LOUDSPEAKER, PREPARATION METHOD FOR VIBRATING DIAPHRAGM FOR LOUDSPEAKER, AND SOUND GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/257783
Kind Code:
A1
Abstract:
Disclosed in the present application are a vibrating diaphragm for a loudspeaker, a preparation method for a vibrating diaphragm for a loudspeaker, and a sound generating device. The vibrating diaphragm for a loudspeaker comprises an aqueous acrylate adhesive film layer and two plastic film layers, wherein one of the two plastic film layers covers one surface of the aqueous acrylate adhesive film layer, and the other plastic film layer covers the other surface of the aqueous acrylate adhesive film layer. The aqueous acrylate adhesive film layer is prepared from an acrylate emulsion, a curing agent, a wetting agent and a defoaming agent, and the molecular weight of an acrylate polymer in the acrylate emulsion is between two hundred thousand and two million. The acrylate polymer in the acrylate emulsion in the present application has a relatively high molecular weight, such that the prepared aqueous acrylate adhesive film layer has a relatively high high-temperature resistance, so that the vibrating diaphragm, prepared on the basis of the aqueous acrylate adhesive film layer, for a loudspeaker also has a relatively high high-temperature resistance.
Inventors:
WANG TING (CN)
YAN FUZHEN (CN)
LI CHUN (CN)
YAN FUZHEN (CN)
LI CHUN (CN)
Application Number:
PCT/CN2022/095650
Publication Date:
December 15, 2022
Filing Date:
May 27, 2022
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/12; H04R9/02; H04R9/06; H04R31/00
Foreign References:
| CN113423045A | 2021-09-21 | |||
| CN105872911A | 2016-08-17 | |||
| CN111935603A | 2020-11-13 | |||
| CN110511700A | 2019-11-29 | |||
| CN111065024A | 2020-04-24 | |||
| JP2005184768A | 2005-07-07 |
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