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Vibration module, piezoelectric loudspeaker and terminal equipment

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92777836专利族
§ Ⅰ

卷宗概要

申请人

HUAWEI TECH CO LTD

申请号

CN202310320339

发明人

XING ZENGPING

申请日

Mar 23, 2023

公开日

Sep 24, 2024

专利族 ID

92777836

IPC 分类

H04R9/02H04R9/06

CPC 分类

H04R9/02H04R9/06H04R2400/11

The invention relates to the technical field of loudspeakers, in particular to a vibration module, a piezoelectric loudspeaker and terminal equipment. The vibration module comprises a base and a vibration unit; the vibration unit comprises a cantilever structure, a vibrating diaphragm structure and a connecting structure; the cantilever structure is provided with a piezoelectric region; the cantilever structure is provided with a fixed end and free ends, the fixed end is fixed on the base, and the free ends are symmetrically distributed relative to the fixed end; the diaphragm structures are arranged on the sides, away from the base, of the cantilever structures at intervals; the connecting structure is connected between the edge of the vibrating diaphragm structure and the free end of the cantilever structure; the connecting structure comprises a flexible connecting part; the rigidity of the flexible connecting part is smaller than the rigidity of the cantilever structure and the diaphragm structure in the direction that the connecting structure connects the diaphragm structure and the cantilever structure. The vibration module has a relatively large vibration area and vibration amplitude, and can improve the sound pressure level of the piezoelectric loudspeaker and achieve stable amplitude output.

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