JP5337721B2 - パラメトリック曲げモードエネルギー収穫を組み込む圧電型振動エネルギー収穫システム - Google Patents
パラメトリック曲げモードエネルギー収穫を組み込む圧電型振動エネルギー収穫システム Download PDFInfo
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Classifications
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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
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/304—Beam type
- H10N30/306—Cantilevers
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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
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
-
- 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
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
- H02N2/188—Vibration harvesters adapted for resonant operation
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- Micromachines (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
Claims (20)
- 横断面曲げ特性と、第1の曲げ方向における前記横断面曲げ特性の関数である基本共振周波数と、前記第1の曲げ方向に直交する第2の曲げ方向におけるパラメトリックモード周波数とを有する共振梁を備え、
前記パラメトリックモード周波数は前記横断面曲げ特性の関数であり、前記横断面曲げ特性が、前記基本共振周波数を第1の所望の周波数にチューニングしかつ前記パラメトリックモード周波数を第2の所望の周波数にチューニングするように選択され、
前記共振梁が、該共振梁が前記第1の所望の周波数および前記第2の所望の周波数で振動するときに前記第1および第2の曲げ方向のそれぞれにおける前記共振梁の曲げに応答して電気エネルギーを発生するための圧電材料を含み、
前記共振梁がある長さを有し、前記圧電材料は、該圧電材料が前記横断面曲げ特性に寄与するように、前記長さに沿って配置される、振動エネルギー収穫器。 - 前記共振梁が、前記第1の曲げ方向に対する第1の曲げ軸および前記第2の曲げ方向に対する第2の曲げ軸を有し、前記第1および第2の曲げ軸が第1、第2、第3および第4の四分円を画定し、それにより前記第1および第2の四分円が前記第1の曲げ軸の両側に互いに対向しかつ前記第2および第3の四分円が前記第2の曲げ軸の両側に互いに対向し、
前記共振梁が、互いに離隔され、前記第1、第2、第3および第4の四分円のうちの対応するそれぞれの四分円の中に配置される第1、第2、第3および第4の電極をさらに含む、請求項1に記載の振動エネルギー収穫器。 - 前記圧電材料の第1の部分が前記第1および第2の電極の間に配置され、前記圧電材料の第2の部分が前記第3および第4の電極の間に配置される、請求項2に記載の振動エネルギー収穫器。
- さらに、
前記圧電材料の前記第1の部分の対向する側部に配置される第5の電極及び第6の電極であって、それぞれが、前記第1の四分円及び前記第2の四分円の両方に配置されている、第5の電極及び第6の電極と、
前記圧電材料の前記第2の部分の対向する側部に配置される第7の電極及び第8の電極であって、それぞれが、前記第3の四分円及び前記第4の四分円の両方に配置される、第7及び第8の電極と、
を備える、請求項3に記載の振動エネルギー収穫器。 - 前記第1の電極および前記第2の電極の間に配置され、前記第1の電極および前記第2の電極から離隔される第9の電極と、前記第3の電極および前記第4の電極の間に配置され、前記第3の電極および前記第4の電極から離隔される第10の電極とをさらに備え、
前記圧電材料の第1の部分が前記第1の電極および前記第9の電極の間に配置され、
前記圧電材料の第2の部分が前記第4の電極および前記第10の電極の間に配置され、
前記圧電材料の第3の部分が前記第9の電極および前記第2の電極の間に配置され、
前記圧電材料の第4の部分が前記第10の電極および前記第3の電極の間に配置される、
請求項2に記載の振動エネルギー収穫器。 - さらに、
前記圧電材料の前記第1の部分及び前記第2の部分の対向する側部に配置される第5の電極及び第6の電極であって、それぞれが、前記第1の四分円及び前記第2の四分円の両方に配置されている、第5の電極及び第6の電極と、
前記圧電材料の前記第3の部分及び前記第4の部分の対向する側部に配置される第7の電極及び第8の電極であって、それぞれが、前記第3の四分円及び前記第4の四分円の両方に配置される、第7及び第8の電極と、
を備える、請求項5に記載の振動エネルギー収穫器。 - 前記第1の電極、前記第2の電極、前記第3の電極、前記第4の電極、前記第9の電極および前記第10の電極のそれぞれと電気的に通じ、前記第1の四分円、前記第2の四分円、前記第3の四分円、および前記第4の四分円のそれぞれから、互いに独立に前記電気エネルギーを収穫するように構成される収穫回路をさらに含む、請求項5に記載の振動エネルギー収穫器。
- 前記基本共振周波数が50Hz〜1500Hzの範囲内にある、請求項1に記載の振動エネルギー収穫器。
- 前記基本共振周波数が50Hz〜250Hzの範囲内にある、請求項8に記載の振動エネルギー収穫器。
- 前記共振梁の前記横断面特性が、前記パラメトリックモード周波数が前記基本共振周波数より大きく前記基本共振周波数の8倍より小さい範囲に入るように選択される、請求項1に記載の振動エネルギー収穫器。
- 前記共振梁の前記横断面特性が、前記パラメトリックモード周波数が前記基本共振周波数より大きく前記基本共振周波数の1.5倍より小さい範囲に入るように選択される、請求項10に記載の振動エネルギー収穫器。
- 前記幅が前記厚さの1〜3倍の範囲内にある、請求項1に記載の振動エネルギー収穫器。
- それぞれが前記共振梁のように構成される、パラメトリックモード可能な(PME)圧電型振動エネルギー収穫(PVEH)梁の群を有し、
前記群は、特定の基本共振周波数及びパラメトリックモード共振周波数から電荷を収穫するように構成されている、請求項1に記載の振動エネルギー収穫器。 - 対応するそれぞれの異なるチューニングを有するPME PVEH梁の複数の群を含み、
前記異なるチューニングは、異なる基本共振周波数及び異なるパラメトリックモード周波数を含む、請求項13に記載の振動エネルギー収穫器。 - 前記振動エネルギーの収穫器の帯域幅をさらに拡大するために、前記異なる基本共振周波数のうちの複数の周波数が、前記異なる基本共振周波数のうちの任意の直接隣接する周波数と異なる、請求項14に記載の振動エネルギー収穫器。
- 前記振動エネルギーの収穫器の帯域幅をさらに拡大するために、前記異なるパラメトリックモード周波数のうちの複数の周波数が、前記異なる基本共振周波数のうちの対応するそれぞれの基本共振周波数と異なる、請求項15に記載の振動エネルギー収穫器。
- 前記PME PVEH梁のそれぞれが、パラメトリックモード曲げの中立軸を有し、前記パラメトリックモード曲げの中立軸の両側に配置される第1および第2の圧電性物質/電極の積層体を含む、請求項13に記載の振動エネルギー収穫器。
- 前記複数のPME PVEH梁のそれぞれがバイモルフ圧電梁である、請求項17に記載の振動エネルギー収穫器。
- 前記第1の圧電性物質/電極の積層体が第1の複数の電極を含み、前記第2の圧電性物質/電極の積層体が、前記パラメトリックモード曲げの中立軸を超えて前記第1の複数の電極から離隔された第2の複数の電極を含む、請求項17に記載の振動エネルギー収穫器。
- 並行なPME PVEH梁の複数の群を含み、
前記複数の群のうちの第1の群内の前記並行なPME PVEH梁は、第1の方向に延びる長手方向軸線を有し、前記複数の群のうちの第2の群内の前記並行なPME PVEH梁は、前記第1の方向とは異なる方向に延びる長手方向軸線を有し、前記振動エネルギー収穫器を3軸振動エネルギー収穫器とする、請求項13に記載の振動エネルギー収穫器。
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US89607707P | 2007-03-21 | 2007-03-21 | |
US60/896,077 | 2007-03-21 | ||
PCT/US2008/057865 WO2008116173A1 (en) | 2007-03-21 | 2008-03-21 | Piezoelectric vibrational energy harvesting systems incorporating parametric bending mode energy harvesting |
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JP2010522438A JP2010522438A (ja) | 2010-07-01 |
JP2010522438A5 JP2010522438A5 (ja) | 2012-04-26 |
JP5337721B2 true JP5337721B2 (ja) | 2013-11-06 |
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US (1) | US8080920B2 (ja) |
EP (1) | EP2140505B1 (ja) |
JP (1) | JP5337721B2 (ja) |
KR (1) | KR20100015782A (ja) |
CN (1) | CN101641804A (ja) |
AU (1) | AU2008228708A1 (ja) |
CA (1) | CA2681173C (ja) |
ES (1) | ES2389715T3 (ja) |
WO (1) | WO2008116173A1 (ja) |
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DE102010005695A1 (de) * | 2010-01-25 | 2011-07-28 | Airbus Operations GmbH, 21129 | Autarkes Monument in der Flugzeug-Druckkabine mit dezentraler Betriebsstoffversorgung und effizienter Energiewandlung |
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