Title:
DRIVING DEVICE AND ACOUSTIC OUTPUT DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/197290
Kind Code:
A1
Abstract:
Disclosed in the embodiments of the present application are a driving device and an acoustic output device comprising the same. The driving device comprises one or more driving units, each driving unit is provided with a beam-shaped structure, and the beam-shaped structure comprises a vibration output end and a fixed end, and extends from the fixed end to the vibration output end. Each driving unit comprises a piezoelectric layer and an enhancement layer. The piezoelectric layer is used for enabling the driving unit to output vibration from the vibration output end in response to an electric signal. The enhancement layer comprises one or more enhancement members arranged in an extension direction of the beam-shaped structure, at least one of said members is arranged close to the vibration output end, and in the extension direction, the size of the enhancement member does not exceed one half of the distance from the vibration output end to the fixed end.
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Inventors:
ZHOU WENBING (CN)
WANG QINGYI (CN)
ZHANG LEI (CN)
QI XIN (CN)
LIAO FENGYUN (CN)
WANG QINGYI (CN)
ZHANG LEI (CN)
QI XIN (CN)
LIAO FENGYUN (CN)
Application Number:
PCT/CN2022/087025
Publication Date:
October 19, 2023
Filing Date:
April 15, 2022
Export Citation:
Assignee:
SHENZHEN SHOKZ CO LTD (CN)
International Classes:
H04R17/02
Domestic Patent References:
| WO2021106265A1 | 2021-06-03 |
Foreign References:
| CN112004181A | 2020-11-27 | |||
| US20170244022A1 | 2017-08-24 | |||
| CN110392331A | 2019-10-29 | |||
| CN113620232A | 2021-11-09 | |||
| CN104510497A | 2015-04-15 | |||
| CN108419189A | 2018-08-17 | |||
| US20160264399A1 | 2016-09-15 | |||
| CN212086487U | 2020-12-04 | |||
| CN214381392U | 2021-10-08 |
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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