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Publication number
JP2006166694A5
JP2006166694A5 JP2005326580A JP2005326580A JP2006166694A5 JP 2006166694 A5 JP2006166694 A5 JP 2006166694A5 JP 2005326580 A JP2005326580 A JP 2005326580A JP 2005326580 A JP2005326580 A JP 2005326580A JP 2006166694 A5 JP2006166694 A5 JP 2006166694A5
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Prior art keywords
piezoelectric element
piezoelectric
diaphragm
piezoelectric material
vibration
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JP2005326580A
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Japanese (ja)
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JP4949666B2 (en
JP2006166694A (en
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Publication of JP2006166694A5 publication Critical patent/JP2006166694A5/ja
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Claims (11)

圧力変動により発電するための圧電素子であって、
圧電材料の少なくとも一方の面に、複数の溝が形成されていることを特徴とする圧電素子。 A piezoelectric element for generating electricity by pressure fluctuation,
A piezoelectric element comprising a plurality of grooves formed on at least one surface of a piezoelectric material. 前記圧電材料は、複数の部分に分割され、分割された圧電材料の各々が、前記圧電材料よりも弾性係数が小さい膜により接続されていることを特徴とする請求項１に記載の圧電素子。The piezoelectric element according to claim 1, wherein the piezoelectric material is divided into a plurality of portions, and each of the divided piezoelectric materials is connected by a film having a smaller elastic coefficient than the piezoelectric material. 圧力変動により発電するための圧電素子であって、A piezoelectric element for generating electricity by pressure fluctuation,
圧電材料と振動板とが接合され、前記圧電材料と前記振動板の少なくとも一方の面に、複数の溝が形成されていることを特徴とする圧電素子。A piezoelectric element, wherein a piezoelectric material and a diaphragm are joined, and a plurality of grooves are formed on at least one surface of the piezoelectric material and the diaphragm. 前記溝は、前記圧電材料の厚さの１／２の深さを有することを特徴とする請求項１から３のいずれか一項に記載の圧電素子。The piezoelectric element according to any one of claims 1 to 3, wherein the groove has a depth that is ½ of a thickness of the piezoelectric material. 音による空気の圧力変動により発電する音力発電装置であって、A sound power generator that generates power by fluctuations in air pressure due to sound,
圧電材料と振動板とが接合され、前記圧電材料と前記振動板の少なくとも一方の面に、複数の溝が形成されている圧電素子と、A piezoelectric element in which a piezoelectric material and a diaphragm are joined, and a plurality of grooves are formed on at least one surface of the piezoelectric material and the diaphragm;
該圧電素子を緩衝材により中空に保持する集音手段と、A sound collecting means for holding the piezoelectric element hollow by a buffer material;
前記圧電素子の出力を整流する手段と、Means for rectifying the output of the piezoelectric element;
整流された電力を蓄積する手段と、Means for storing rectified power;
を備えたことを特徴とする音力発電装置。A sound power generator characterized by comprising: 前記溝は、前記圧電材料の厚さの１／２の深さを有することを特徴とする請求項５に記載の音力発電装置。The sound power generation device according to claim 5, wherein the groove has a depth that is ½ of a thickness of the piezoelectric material. 前記振動板の少なくとも一方の面に複数の溝が形成され、音声周波数で共振することを特徴とする請求項５又は６に記載の音力発電装置。The sound power generation device according to claim 5 or 6, wherein a plurality of grooves are formed on at least one surface of the diaphragm and resonate at a sound frequency. 振動による圧力変動により発電する振動力発電装置であって、A vibration power generator that generates power by pressure fluctuation caused by vibration,
圧電材料の少なくとも一方の面に、複数の溝が形成されている圧電素子と、A piezoelectric element having a plurality of grooves formed on at least one surface of the piezoelectric material;
該圧電素子と接合され、前記圧電素子に振動を伝える振動板と、A diaphragm that is bonded to the piezoelectric element and transmits vibration to the piezoelectric element;
前記圧電素子の出力を整流する手段と、Means for rectifying the output of the piezoelectric element;
整流された電力を蓄積する手段と、Means for storing rectified power;
を備えたことを特徴とする振動力発電装置。A vibration power generation device comprising: 前記溝は、前記圧電材料の厚さの１／２の深さを有することを特徴とする請求項８に記載の振動力発電装置。9. The vibration power generation apparatus according to claim 8, wherein the groove has a depth that is ½ of the thickness of the piezoelectric material. 前記振動板は、一端に錘が取り付けられ、他端が筐体の一部に固定されていることを特徴とする請求項８又は９に記載の振動力発電装置。The vibration power generator according to claim 8 or 9, wherein a weight is attached to one end of the diaphragm, and the other end is fixed to a part of the casing. 前記振動板は、一端が筐体の一部に固定され、他端が外力によりはじかれることにより振動することを特徴とする請求項８又は９に記載の振動力発電装置。10. The vibration power generation apparatus according to claim 8, wherein the vibration plate vibrates when one end is fixed to a part of the housing and the other end is repelled by an external force.
JP2005326580A 2004-11-11 2005-11-10 Piezoelectric element, sound power generator and vibration power generator Active JP4949666B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005326580A JP4949666B2 (en) 2004-11-11 2005-11-10 Piezoelectric element, sound power generator and vibration power generator

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004327996 2004-11-11
JP2004327996 2004-11-11
JP2005326580A JP4949666B2 (en) 2004-11-11 2005-11-10 Piezoelectric element, sound power generator and vibration power generator

Publications (3)

Publication Number Publication Date
JP2006166694A JP2006166694A (en) 2006-06-22
JP2006166694A5 true JP2006166694A5 (en) 2008-12-18
JP4949666B2 JP4949666B2 (en) 2012-06-13

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US8400046B2 (en) 2007-11-13 2013-03-19 Kohei Hayamizu Power generation unit
JP5305463B2 (en) * 2007-11-13 2013-10-02 浩平 速水 Power generation unit and light emitting device
JP5138473B2 (en) * 2008-06-16 2013-02-06 公益財団法人鉄道総合技術研究所 Monitoring system for air displacement in tunnel
KR101454686B1 (en) 2008-09-17 2014-10-28 삼성전자주식회사 Apparatus and method for converting energy
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JP5354729B2 (en) * 2009-02-17 2013-11-27 浩平 速水 Exercise equipment
JP5810386B2 (en) 2010-04-16 2015-11-11 株式会社三宅 Power generation device and current collection system
JP5734064B2 (en) 2010-04-27 2015-06-10 キヤノン株式会社 Actuator
WO2011158473A1 (en) 2010-06-18 2011-12-22 国立大学法人金沢大学 Power generation element and power generation apparatus provided with power generation element
JP5645179B2 (en) 2011-09-16 2014-12-24 国立大学法人金沢大学 Power generation element
KR101323236B1 (en) * 2011-12-12 2013-10-30 황경환 Resonant piezoelectric power generator
JP5458421B2 (en) * 2012-05-07 2014-04-02 浩平 速水 Vibration power generator
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CN103114978A (en) * 2013-02-07 2013-05-22 中联重科股份有限公司 Engineering machine and piezoelectric energy-absorbing power generation system for same
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