JP5429140B2 - 圧電アクチュエータ - Google Patents
圧電アクチュエータ Download PDFInfo
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- JP5429140B2 JP5429140B2 JP2010252794A JP2010252794A JP5429140B2 JP 5429140 B2 JP5429140 B2 JP 5429140B2 JP 2010252794 A JP2010252794 A JP 2010252794A JP 2010252794 A JP2010252794 A JP 2010252794A JP 5429140 B2 JP5429140 B2 JP 5429140B2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/003—Driving devices, e.g. vibrators using longitudinal or radial modes combined with bending modes
- H02N2/004—Rectangular vibrators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/05—Manufacture of multilayered piezoelectric or electrostrictive devices, or parts thereof, e.g. by stacking piezoelectric bodies and electrodes
- H10N30/053—Manufacture of multilayered piezoelectric or electrostrictive devices, or parts thereof, e.g. by stacking piezoelectric bodies and electrodes by integrally sintering piezoelectric or electrostrictive bodies and electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/202—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using longitudinal or thickness displacement combined with bending, shear or torsion displacement
- H10N30/2023—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using longitudinal or thickness displacement combined with bending, shear or torsion displacement having polygonal or rectangular shape
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/87—Electrodes or interconnections, e.g. leads or terminals
- H10N30/871—Single-layered electrodes of multilayer piezoelectric or electrostrictive devices, e.g. internal electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/87—Electrodes or interconnections, e.g. leads or terminals
- H10N30/872—Connection electrodes of multilayer piezoelectric or electrostrictive devices, e.g. external electrodes
- H10N30/874—Connection electrodes of multilayer piezoelectric or electrostrictive devices, e.g. external electrodes embedded within piezoelectric or electrostrictive material, e.g. via connections
Description
Claims (6)
- 複数の圧電体層が積層されて一体化されていると共に印加される電圧により第1の振動モードと第2の振動モードとを同時に発生させる圧電素子を備えた圧電アクチュエータであって、
前記圧電素子の一の外表面は、第1の領域と該第1の領域から突出した第2の領域とを含んでおり、
前記第2の領域は、被駆動体に接触して該被駆動体との間に摩擦力を生じさせ、
前記圧電素子は、不活性部における前記圧電体層間の前記第2の領域に対応する位置に、厚み形成領域を含んでおり、
前記第2の領域は、前記厚み形成領域の厚みに対応した分、前記第1の領域から突出していることを特徴とする圧電アクチュエータ。 - 印加される電圧により第1の振動モードと第2の振動モードとを同時に発生させる圧電素子を備えた圧電アクチュエータであって、
前記圧電素子の一の外表面は、第1の領域と該第1の領域から突出した第2の領域とを含んでおり、
前記第2の領域は、被駆動体に接触して該被駆動体との間に摩擦力を生じさせ、
前記圧電素子は、活性部における前記第2の領域に対応する位置に、厚み形成領域を含んでおり、
前記第2の領域は、前記厚み形成領域の厚みに対応した分、前記第1の領域から突出していることを特徴とする圧電アクチュエータ。 - 前記厚み形成領域は、前記圧電素子を構成する圧電材料からなることを特徴とする請求項1又は2に記載の圧電アクチュエータ。
- 前記厚み形成領域は、活性部を構成するための内部電極と同じ導電材料からなることを特徴とする請求項1又は2に記載の圧電アクチュエータ。
- 前記圧電素子は、前記一の外表面を構成する保護膜を有していることを特徴とする請求項1〜4のいずれか一項に記載の圧電アクチュエータ。
- 前記保護膜は、DLC、TiN、SiC、又はBPを含んでいることを特徴とする請求項5に記載の圧電アクチュエータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010252794A JP5429140B2 (ja) | 2010-01-19 | 2010-11-11 | 圧電アクチュエータ |
US12/974,603 US8390170B2 (en) | 2010-01-19 | 2010-12-21 | Piezoelectric actuator |
KR20110001801A KR101170893B1 (ko) | 2010-01-19 | 2011-01-07 | 압전 액추에이터 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010009081 | 2010-01-19 | ||
JP2010009081 | 2010-01-19 | ||
JP2010252794A JP5429140B2 (ja) | 2010-01-19 | 2010-11-11 | 圧電アクチュエータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011172465A JP2011172465A (ja) | 2011-09-01 |
JP5429140B2 true JP5429140B2 (ja) | 2014-02-26 |
Family
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010252794A Active JP5429140B2 (ja) | 2010-01-19 | 2010-11-11 | 圧電アクチュエータ |
Country Status (3)
Country | Link |
---|---|
US (1) | US8390170B2 (ja) |
JP (1) | JP5429140B2 (ja) |
KR (1) | KR101170893B1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5500308B2 (ja) * | 2011-03-01 | 2014-05-21 | 株式会社村田製作所 | 圧電素子およびこれを用いた圧電装置 |
JP5673752B2 (ja) * | 2013-07-25 | 2015-02-18 | Tdk株式会社 | 圧電アクチュエータ |
JP6772728B2 (ja) * | 2016-09-29 | 2020-10-21 | Tdk株式会社 | 圧電素子 |
JP7003741B2 (ja) * | 2018-03-02 | 2022-01-21 | Tdk株式会社 | 振動デバイス及び圧電素子 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5191688A (en) * | 1989-07-27 | 1993-03-09 | Olympus Optical Co., Ltd. | Method for producing a superior longitudinal vibrator |
JP3755070B2 (ja) * | 1996-03-29 | 2006-03-15 | Tdk株式会社 | 表面弾性波アクチュエータ及びその製造方法 |
JPH1132491A (ja) * | 1997-05-16 | 1999-02-02 | Seiko Instr Inc | 超音波モータ及び超音波モータ付電子機器 |
DE10154526B4 (de) * | 2001-06-12 | 2007-02-08 | Physik Instrumente (Pi) Gmbh & Co | Piezoelektrisches Stellelement |
JP4261964B2 (ja) | 2003-04-11 | 2009-05-13 | キヤノン株式会社 | 振動型駆動装置および制御システム |
US7187104B2 (en) * | 2003-03-28 | 2007-03-06 | Canon Kabushiki Kaisha | Vibration-type driving device, control apparatus for controlling the driving of the vibration-type driving device, and electronic equipment having the vibration-type driving device and the control apparatus |
JP4652677B2 (ja) * | 2003-09-18 | 2011-03-16 | オリンパス株式会社 | 超音波振動子及びそれを用いた超音波モータ |
JP4697929B2 (ja) * | 2003-11-13 | 2011-06-08 | キヤノン株式会社 | 積層圧電素子及び振動波駆動装置 |
JP4794901B2 (ja) * | 2005-05-09 | 2011-10-19 | キヤノン株式会社 | 振動型アクチュエータの駆動システムおよびその駆動方法 |
JP4413873B2 (ja) * | 2006-01-27 | 2010-02-10 | 日本碍子株式会社 | マイクロスイッチ用アクチュエータ及びマイクロスイッチ |
KR100818482B1 (ko) | 2006-10-16 | 2008-04-01 | 삼성전기주식회사 | 압전 모터 |
JP2009130955A (ja) | 2007-11-20 | 2009-06-11 | Panasonic Corp | 振動型アクチュエータ及びそれを備えた駆動装置 |
DE102008012992A1 (de) * | 2008-03-07 | 2009-09-10 | Physik Instrumente (Pi) Gmbh & Co. Kg | Ultraschallmotor |
KR101107763B1 (ko) | 2009-01-21 | 2012-01-20 | 임대순 | 압전모터 |
US8183743B2 (en) * | 2010-04-26 | 2012-05-22 | Discovery Technology International, Inc. | Tubular linear piezoelectric motor |
-
2010
- 2010-11-11 JP JP2010252794A patent/JP5429140B2/ja active Active
- 2010-12-21 US US12/974,603 patent/US8390170B2/en active Active
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2011
- 2011-01-07 KR KR20110001801A patent/KR101170893B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
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JP2011172465A (ja) | 2011-09-01 |
KR101170893B1 (ko) | 2012-08-06 |
KR20110085882A (ko) | 2011-07-27 |
US20110175491A1 (en) | 2011-07-21 |
US8390170B2 (en) | 2013-03-05 |
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