JP5369182B2 - 電気機械変換器及びその製造方法 - Google Patents
電気機械変換器及びその製造方法 Download PDFInfo
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- JP5369182B2 JP5369182B2 JP2011518634A JP2011518634A JP5369182B2 JP 5369182 B2 JP5369182 B2 JP 5369182B2 JP 2011518634 A JP2011518634 A JP 2011518634A JP 2011518634 A JP2011518634 A JP 2011518634A JP 5369182 B2 JP5369182 B2 JP 5369182B2
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- 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
-
- 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
- H10N30/07—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base
- H10N30/072—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by laminating or bonding of piezoelectric or electrostrictive bodies
- H10N30/073—Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by laminating or bonding of piezoelectric or electrostrictive bodies by fusion of metals or by adhesives
-
- 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
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Micromachines (AREA)
Description
(1)このとき、前記基底構造物12及び電気作動材料層11の厚さ比は下記の数式(1)によって決定される。
はユニモフ作動器の幅、d31は圧電係数であって、電界によって発生する自由変形率を表す。また、spは電気作動材料層11の弾性係数の逆数であり、物質の材質によって決定される物質常数(コンプライアンス)である。
11 電気作動材料層
11a,11b 電極
12 基底構造物
51 金属層
52 圧電層
Claims (9)
- 初期応力が加えられた基底構造物12と、
前記基底構造物12に付着される電気作動材料層11と、
前記電気作動材料層11が駆動できるようにする電極11a,11bと、を含んでなり、
前記基底構造物12に加えられた初期応力を除去した時、前記基底構造物12及び電気作動材料層11が変形されて曲率を有するとともに、前記電気作動材料層に内部応力が分布されることにより前記電気作動材料層の変形性能が向上されることを特徴とする電気機械変換器。 - 前記基底構造物12及び電気作動材料層11の厚さ比(ξ)は下記の数式によって決定されることを特徴とする請求項1に記載の電気機械変換器。
ここで、前記ξは前記基底構造物12の厚さ(tm)と前記電気作動材料層11の厚さ(tp)間の比(tm/tp)であり、前記ηは前記基底構造物12の弾性係数(1/sm)と前記電気作動材料層11の弾性係数(1/sp)との間の比(sp/sm)を意味する。 - 前記基底構造物12は、金属、ガラス、プラスチック、複合材料、セラミック、圧電材料または形状記憶合金のいずれかで形成されることを特徴とする請求項1に記載の電気機械変換器。
- 前記電気作動材料層11は、圧電セラミック、圧電フイルム、圧電フアイバー、電気作動ポリマー、鋼誘電体、形状記憶合金または電歪材料のいずれかで形成されることを特徴とする請求項1に記載の電気機械変換器。
- 製造が完了された電気機械変換器10が上下に積層されて複層からなる電気機械変換システムを構成することを特徴とする請求項2に記載の電気機械変換器。
- 製造が完了された電気機械変換器10を用いて音圧を誘発する音響装置を構成することを特徴とする請求項2に記載の電気機械変換器。
- 装備を用いて基底構造物12に応力を加える段階と、
電極11a,11bを含む電気作動材料層11を前記基底構造物12に接着剤で付着する段階と、
前記接着剤が完全に硬化されるまで待機する段階と、
前記接着剤が完全に硬化されたあとに、前記電気作動材料層11が接着された前記基底構造物12を装備から分離して、前記基底構造物12に加えられた初期応力を除去することにより、前記基底構造物12及び電気作動材料層11が変形されて曲率を有するとともに、前記電気作動材料層に内部応力が分布されるようにして前記電気作動材料層の変形性能が向上されるようにした電気機械変換器10を完成する段階と、を含むことを特徴とする電気機械変換器の製造方法。 - 前記基底構造物12に応力を加えた状態で前記基底構造物12の変形率を測定して変形量が適切であるかを確認する段階をさらに含むことを特徴とする請求項7に記載の電気機械変換器の製造方法。
- 前記電気機械変換器10が完成された後、前記電気作動材料層11の電極11a, 11bに電気信号を入力して前記電気機械変換器10を変形させるか前記基底構造物12に変形を加えて前記電気作動材料層11から発生する電気信号を取得して、前記電気機械変換器10の作動状態をテストする段階をさらに含むことを特徴とする請求項7または8に記載の電気機械変換器の製造方法。
Applications Claiming Priority (3)
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KR10-2008-0070084 | 2008-07-18 | ||
KR1020080070084A KR100984333B1 (ko) | 2008-07-18 | 2008-07-18 | 전기 기계 변환기 및 그 제작방법 |
PCT/KR2009/002182 WO2010008133A1 (en) | 2008-07-18 | 2009-04-27 | Electromechanical transducer and method for manufacturing the same |
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JP2011528546A JP2011528546A (ja) | 2011-11-17 |
JP5369182B2 true JP5369182B2 (ja) | 2013-12-18 |
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JP2011518634A Active JP5369182B2 (ja) | 2008-07-18 | 2009-04-27 | 電気機械変換器及びその製造方法 |
Country Status (5)
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US (1) | US8810113B2 (ja) |
JP (1) | JP5369182B2 (ja) |
KR (1) | KR100984333B1 (ja) |
CN (1) | CN102099939A (ja) |
WO (1) | WO2010008133A1 (ja) |
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- 2009-04-27 CN CN2009801278628A patent/CN102099939A/zh active Pending
- 2009-04-27 JP JP2011518634A patent/JP5369182B2/ja active Active
- 2009-04-27 WO PCT/KR2009/002182 patent/WO2010008133A1/en active Application Filing
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US8810113B2 (en) | 2014-08-19 |
KR100984333B1 (ko) | 2010-09-30 |
KR20100009266A (ko) | 2010-01-27 |
JP2011528546A (ja) | 2011-11-17 |
US20110109199A1 (en) | 2011-05-12 |
WO2010008133A1 (en) | 2010-01-21 |
CN102099939A (zh) | 2011-06-15 |
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