Title:
CONDUCTIVE FILM FOR SOUND PRODUCTION DEVICE AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/058011
Kind Code:
A1
Abstract:
Disclosed are a conductive film for a sound production device and a sound production device. The conductive film comprises a conductive layer and substrate layers located on two sides of the conductive layer, and the conductive film comprises an inner side portion, a deformation portion, and an outer side portion; the conductive layer comprises a first conductive layer disposed on the inner side portion, a second conductive layer disposed on the deformation portion, and a third conductive layer disposed on the outer side portion, and two ends of the second conductive layer are electrically connected to the first conductive layer and the third conductive layer respectively; the first conductive layer and the third conductive layer are both made of metal foil, the second conductive layer is a conductive adhesive layer formed by means of coating or printing, and the Young's modulus of the second conductive layer is smaller than the Young's modulus of the metal foil. One technical effect of the present invention is that the conductive film has conductivity and can be used not only as a sound production diaphragm, but also as a supporting diaphragm.
Inventors:
GUO XIAODONG (CN)
ZHANG CHENGFEI (CN)
ZHANG CHENGFEI (CN)
Application Number:
PCT/CN2020/118532
Publication Date:
April 01, 2021
Filing Date:
September 28, 2020
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN110708644A | 2020-01-17 | |||
| CN110691308A | 2020-01-14 | |||
| CN110784810A | 2020-02-11 | |||
| CN110691307A | 2020-01-14 | |||
| CN110620976A | 2019-12-27 | |||
| CN110691306A | 2020-01-14 | |||
| CN103024638A | 2013-04-03 | |||
| CN107809705A | 2018-03-16 | |||
| CN108462922A | 2018-08-28 | |||
| US20020141610A1 | 2002-10-03 |
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