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Title:
DIAPHRAGM, SOUND GENERATING DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/196699
Kind Code:
A1
Abstract:
A diaphragm, a sound generating device and an electronic device, the diaphragm comprising a first metal layer (10), a foam material layer (20) and a second metal layer (30); the foam material layer (20) is disposed on the first metal layer (10); the second metal layer (30) is disposed on the foam material layer (20); the foam material layer (20) is provided with a missing portion (21) opposite to the first metal layer (10); and the position on the second metal layer (30) corresponding to the missing portion (21) is recessed and then connected together with the first metal layer (10). The diaphragm is applied to a sound generating device or an electronic device, and can promptly dissipate heat in the sound generating device or the electronic device, reduce a rise in temperature, and improve the acoustic performance of the sound generating device and the electronic device.

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Inventors:
WANG HAIRONG (CN)
GUO XIANG (CN)
Application Number:
PCT/CN2020/134124
Publication Date:
October 07, 2021
Filing Date:
December 05, 2020
Export Citation:
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Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/10
Foreign References:
CN111263274A2020-06-09
CN202395974U2012-08-22
CN109151676A2019-01-04
CN109151687A2019-01-04
CN109451400A2019-03-08
CN109246553A2019-01-18
CN102685649A2012-09-19
CN209283495U2019-08-20
US20150078611A12015-03-19
US4410768A1983-10-18
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