Title:
VIBRATING DIAPHRAGM AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/062814
Kind Code:
A1
Abstract:
The present invention provides a vibrating diaphragm used in a sound production device. The sound production device comprises a voice coil. The vibrating diaphragm is used for being combined and fixed with the voice coil, and comprises an elastic heat conduction film layer. Forming materials of the elastic heat conduction film layer comprise an elastomer material and a heat conduction filler. The present invention further provides the sound production device comprising the vibrating diaphragm. According to the technical solution of the present invention, the heat conduction performance and the heat dissipation performance of the vibrating diaphragm can be significantly improved, and the diffusion of heat from the voice coil to the whole vibrating diaphragm or the air is facilitated, thereby preventing the vibrating diaphragm from melting due to local overheating, and improving the temperature resistance of the vibrating diaphragm; moreover, it can also be ensured that the vibrating diaphragm has good resilience.
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Inventors:
ZHOU HOUQIANG (CN)
WANG HAIFENG (CN)
LI CHUN (CN)
WANG HAIFENG (CN)
LI CHUN (CN)
Application Number:
PCT/CN2021/114462
Publication Date:
March 31, 2022
Filing Date:
August 25, 2021
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
B32B25/04; B32B25/02; B32B25/08; B32B25/14; B32B25/16; B32B25/18; B32B25/20; B32B27/06; B32B27/08; B32B27/20; B32B27/28; B32B27/30; B32B27/32; B32B27/34; B32B27/36; B32B27/40; B32B27/42; C08J5/18; C08K3/04; C08K3/08; C08K7/06; C08L9/02; C08L9/06; C08L23/16; C08L23/22; C08L83/04; H04R7/02; H04R31/00
Foreign References:
| CN111923524A | 2020-11-13 | |||
| CN110166900A | 2019-08-23 | |||
| JP2004015261A | 2004-01-15 | |||
| CN109246553A | 2019-01-18 |
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