Title:
SOUND GENERATION APPARATUS AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/206048
Kind Code:
A1
Abstract:
Disclosed in the present invention are a sound generation apparatus and an electronic device. The sound generation apparatus comprises a housing, a first vibration system, a second vibration system and a magnetic circuit system. The first vibration system comprises a first vibration diaphragm and a first voice coil. The second vibration system comprises a second vibration diaphragm and a second voice coil. The magnetic circuit system comprises a first central magnet, a second central magnet, a first yoke plate and a second yoke plate. A first magnetic gap, which allows the first voice coil to extend therein, is formed on a peripheral side of the first central magnet, and the side of the first central magnet that faces away from the first vibration diaphragm is connected to the second yoke plate; and a second magnetic gap, which allows the second voice coil to extend therein, is formed on a peripheral side of the second central magnet, and the side of the second central magnet that faces away from the second vibration diaphragm is connected to the first yoke plate. The first central magnet and the second central magnet are arranged between the first yoke plate and the second yoke plate in a tiled manner, and at least one of the first yoke plate and the second yoke plate is connected to the housing. By means of the technical solution of the present invention, the thickness of the sound generation apparatus can be reduced and sound can be generated from two sides.
Inventors:
CAI XIAODONG (CN)
LI BOBO (CN)
LIU SONG (CN)
LI BOBO (CN)
LIU SONG (CN)
Application Number:
PCT/CN2021/139536
Publication Date:
October 06, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/02
Foreign References:
| CN113099365A | 2021-07-09 | |||
| CN213073093U | 2021-04-27 | |||
| CN212752630U | 2021-03-19 | |||
| CN203563193U | 2014-04-23 | |||
| KR101503821B1 | 2015-03-25 | |||
| CN111343542A | 2020-06-26 |
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