Title:
PIEZOELECTRIC ACTUATOR, IMAGING MODULE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/061479
Kind Code:
A1
Abstract:
A piezoelectric actuator, an imaging module and an electronic device. The piezoelectric actuator (100) comprises a piezoelectric body (110) and a driving body (120). The piezoelectric body (110) comprises a first end face (111) and a second end face (112), which face away from each other, wherein the first end face (111) comprises at least two electrode areas, and an alternating-current excitation electrical signal is applied to at least one of the at least two electrode areas, so that the piezoelectric body (110) generates a bending-cutting feature mode; and the second end face (112) is configured to be fixed to a surface for mounting. The piezoelectric body (110) is polarized in a direction from the first end face (111) to the second end face (112). The driving body (120) is arranged on the first end face (111) and is connected to the at least two electrode areas, and the driving body (120) is used for being in frictional contact with a body to be driven, so as to drive said body to move when the piezoelectric body (110) generates the bending-cutting feature mode. The structure overcomes the problems of the complex design and production and an unstable fixing constraint mode of a traditional piezoelectric actuator, which is pre-tightened by a spring, reduces the size of the piezoelectric actuator, and is beneficial for applying the piezoelectric actuator to drive a miniaturized precision device.
More Like This:
| JPS63265574 | ULTRASONIC MOTOR |
| JP2009296695 | PIEZOELECTRIC ACTUATOR |
Inventors:
GAO XIANGYU (CN)
XIN BENJIAN (CN)
HE YUHANG (CN)
LI FEI (CN)
LIU JINFENG (CN)
JIN HAONAN (CN)
GUO JINGYU (CN)
XIA SONG (CN)
XU ZHUO (CN)
CHEN WEI (CN)
XIONG GUOFANG (CN)
ZHU MEIJUN (CN)
SHI YAO (CN)
XIN BENJIAN (CN)
HE YUHANG (CN)
LI FEI (CN)
LIU JINFENG (CN)
JIN HAONAN (CN)
GUO JINGYU (CN)
XIA SONG (CN)
XU ZHUO (CN)
CHEN WEI (CN)
XIONG GUOFANG (CN)
ZHU MEIJUN (CN)
SHI YAO (CN)
Application Number:
PCT/CN2022/125370
Publication Date:
April 20, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02N2/00; G01R31/34
Foreign References:
| CN115484368A | 2022-12-16 | |||
| CN101569085A | 2009-10-28 | |||
| CN103259449A | 2013-08-21 | |||
| CN101567642A | 2009-10-28 | |||
| CN112887555A | 2021-06-01 | |||
| CN110266211A | 2019-09-20 | |||
| CN111262471A | 2020-06-09 | |||
| CN109417357A | 2019-03-01 | |||
| JP2004297869A | 2004-10-21 | |||
| US4562374A | 1985-12-31 | |||
| US6078438A | 2000-06-20 | |||
| JPH04145880A | 1992-05-19 |
Attorney, Agent or Firm:
SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)
Download PDF:
Previous Patent: TRICYCLIC COMPOUND
Next Patent: COMMENT SHARING METHOD AND APPARATUS, AND ELECTRONIC DEVICE
Next Patent: COMMENT SHARING METHOD AND APPARATUS, AND ELECTRONIC DEVICE