Title:
SOUND GENERATION APPARATUS AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/179665
Kind Code:
A1
Abstract:
Disclosed are a sound generation apparatus and an electronic device. The sound generation apparatus comprises a magnetic circuit system and a vibration system, wherein the magnetic circuit system comprises a magnetic yoke, and a center magnetic circuit part and a side magnetic circuit part, which are arranged on the magnetic yoke, a magnetic gap being formed between the center magnetic circuit part and the side magnetic circuit part; and the vibration system comprises a voice coil, which is inserted in the magnetic gap. At least part of the surface of the magnetic circuit system is coated with a layer of thermal radiation material. One technical effect of the present invention lies in: good heat dissipation and cooling effects can be achieved on the sound generation apparatus during operation, so as to avoid the undesirable phenomenon of burning the voice coil.
Inventors:
ZHAI CHENGXIANG (CN)
GUO XIANG (CN)
GUO XIANG (CN)
Application Number:
PCT/CN2020/129587
Publication Date:
September 16, 2021
Filing Date:
November 18, 2020
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/02; H04R9/06
Foreign References:
| CN111294713A | 2020-06-16 | |||
| CN111405429A | 2020-07-10 | |||
| CN211557474U | 2020-09-22 | |||
| CN106162466A | 2016-11-23 | |||
| CN109794389A | 2019-05-24 | |||
| CN101697602A | 2010-04-21 |
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