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Piezoelectric actuator

A piezoelectric actuator, piezoelectric technology, applied in piezoelectric devices/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, piezoelectric effect/electrostrictive or magnetostrictive motors, etc. It can solve the problems of large size, complex piezoelectric actuator structure, increased piezoelectric actuator manufacturing time and manufacturing cost, etc.

Inactive Publication Date: 2012-07-04
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Also, in order to drive a piezoelectric actuator having a complicated structure due to a complicated electrode pattern, it takes a long time to design the type of voltage application
This causes an increase in the manufacturing time and manufacturing cost of the piezoelectric actuator
[0008] In addition, since the structure of the piezoelectric actuator becomes complicated, electronic products employing such a piezoelectric actuator become bulkier than necessary

Method used

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Embodiment Construction

[0041] Various objects, advantages and features of the present invention will become apparent through the following description of the embodiments with reference to the drawings.

[0042] The terms and words used in this specification and claims should not be construed as being limited to typical meanings or dictionary definitions, but should be based on the concept that the inventor can properly define the terms to best describe the implementation of the invention he / she knows. The rules of the best method of invention are interpreted as having meanings or concepts related to the technical field of the invention.

[0043] Various objects, advantages and features of the present invention will become apparent through the following description of the embodiments with reference to the drawings. In the specification, when adding reference signs to the components of the entire drawings, it should be noted that the same reference signs refer to the same components, even if the components...

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Abstract

Disclosed herein is a piezoelectric actuator. According to the present invention, the manufacturing cost of the piezoelectric actuator can be reduced by simplifying the patterns of electrodes constituting the piezoelectric actuator, the piezoelectric actuator itself or an electronic product employing the piezoelectric actuator can be made smaller by using only planar simple translational movement of the piezoelectric actuator, and the piezoelectric actuator capable of independently performing linear translational movement in two directions on the plane can be provided.

Description

[0001] Cross references to related applications [0002] This application requires a Korean patent entitled "Piezoelectric Actuator" filed on December 30, 2010 with application number 10-2010-0139610 and filed on January 14, 2011 with application number 10-2011-0004032 The rights and interests of the application, the entire contents of which are incorporated into this application by reference. Technical field [0003] The invention relates to a piezoelectric actuator. Background technique [0004] Recently, piezoelectric actuators using piezoelectric bodies are receiving attention as a new type of motor that replaces electric motors. For example, a rotor, etc., a piezoelectric brake generates minute vibrations in a piezoelectric thin plate, and uses contact friction between the friction member attached to the piezoelectric thin plate and the rotor (or sliding member) to reduce the micro vibration Transmitted to the friction part, the piezoelectric actuator enables the friction par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/09H01L41/047H10N30/20H10N30/87
CPCH01L41/083H02N2/0065H02N2/028H02N2/026H02N2/002H01L41/0986H10N30/206H10N30/50
Inventor 李东均李重锡朴哲辰吴源燮黄贞旭白机汶
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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