WO2011089699A1 - 発電装置及び発電方法 - Google Patents
発電装置及び発電方法 Download PDFInfo
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- WO2011089699A1 WO2011089699A1 PCT/JP2010/050688 JP2010050688W WO2011089699A1 WO 2011089699 A1 WO2011089699 A1 WO 2011089699A1 JP 2010050688 W JP2010050688 W JP 2010050688W WO 2011089699 A1 WO2011089699 A1 WO 2011089699A1
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- Prior art keywords
- central axis
- pressing
- pressure transmission
- rotating shaft
- rod
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000003825 pressing Methods 0.000 claims abstract description 61
- 238000010248 power generation Methods 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- 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
Definitions
- the present invention relates to a power generation apparatus and a power generation method.
- a piezoelectric block body composed of a plurality of piezoelectric bodies, a rotating body, and a support member attached in a state where each is biased outward by a spring by a spring
- a power generation device including a roller rotatably supported at the tip of the support member
- the rollers sequentially run on the piezoelectric block based on the rotation of the rotating body, and pressurize the piezoelectric block by the urging force generated by the spring. Due to this periodic pressurization, a periodically changing voltage is continuously generated in the piezoelectric block.
- the rotating body including the spring, the support member, and the roller is rotated in order to ensure the periodicity of the pressure applied to the piezoelectric block, and the spring is used to generate the pressurizing force on the piezoelectric block. It comes to use. That is, in the prior art, a mechanism for ensuring the periodicity of pressurization on the piezoelectric block and a mechanism for generating pressure on the piezoelectric block are prepared independently of each other. As a result, it was difficult to say that the structure was very simple.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a new power generation apparatus and a power generation method capable of realizing high-efficiency power generation using a piezoelectric element.
- the present invention provides a plurality of piezoelectric elements arranged on the inner wall surface of a cylindrical outer frame member; a rotating shaft member that rotates about the central axis of the outer frame member; A cylindrical pressure transmission member provided on the plurality of piezoelectric elements and having a central axis parallel to a central axis of the outer frame member; one end portion is fixed to the rotary shaft member, and the other end portion is the rotation And a pressing member that moves on the pressure transmission member as the shaft member rotates and presses the pressure transmission member by a centrifugal force generated due to the rotation.
- a rotation step of rotating the rotating shaft member; and the rotation of the rotating shaft member causes the other end portion of the pressing member to move along the circumferential direction on the pressure transmission member, thereby causing the rotation.
- a power generation method characterized by comprising a; the other end of the serial pressing member and a pressing step of pressing the pressure transmission member.
- FIG. 1 It is an external view of the electric power generating apparatus which is one Embodiment of this invention. It is a top view for demonstrating the structure of the apparatus of FIG. It is a figure for demonstrating the structure of the electric power generation part of FIG.1 and FIG.2. It is sectional drawing for demonstrating the structure of the separate electric power generation part of FIG. It is a figure for demonstrating the state by which the press member of FIG.1 and FIG.2 is being fixed to the rotating shaft member. It is a figure for demonstrating the structure of the press member of FIG.1 and FIG.2. It is a figure for demonstrating a state when a press member presses a pressure transmission member.
- FIG. 1 shows an external view of a power generation device 100 according to an embodiment. Further, FIG. 2 shows a plan view of the power generation device 100. As comprehensively shown in FIGS. 1 and 2, the power generation device 100 includes a cylindrical outer frame member 110, a power generation unit 120, and a pressure transmission member 130. Further, the power generation device 100 includes a rotating shaft member 140 and a pressing member group 150.
- the outer frame member 110 has a cylindrical shape with the AZ axis as the central axis, as described above.
- a reinforced plastic member is used as the material of the outer frame member 110, and the outer frame member 110 is formed by molding.
- the power generation unit 120 has a cylindrical shape having the same axis as the central axis of the outer frame member 110, that is, the AZ axis as a central axis, and the inner wall of the outer frame member 110 (in the R direction of the outer frame member 110). It is applied in the reverse direction (hereinafter referred to as “ ⁇ R direction”).
- the power generation unit 120 receives a pressing force using centrifugal force from the pressing member group 150 via the pressure transmission member 130. The configuration of the power generation unit 120 will be described later.
- the pressure transmission member 130 has a cylindrical shape with the AZ axis as the central axis, and is attached to the inner wall of the power generation unit 120 (the surface on the ⁇ R direction side of the power generation unit 120).
- the pressure transmission member 130 is a flexible insulating sheet, and a rubber member such as silicon rubber is used as a material, and is formed by molding.
- the surface of the pressure transmission member 130 on the central axis side is subjected to a friction reducing process using a lubricious material.
- the pressure transmission member 130 transmits the pressing force due to the centrifugal force received from the pressing member group 150 to the power generation unit 120.
- the rotating shaft member 140 is, for example, a steel member, and has a cylindrical shape having the central axis of the outer frame member 110, that is, the AZ axis as a rotating central axis (hereinafter also referred to as “rotating central axis AZ”). is doing.
- the rotating shaft member 140 is fixedly attached to the rotating body 900.
- the rotating shaft member 140 rotates with the rotating body 900 as it rotates.
- the rotating body 900 rotates in the ⁇ direction.
- a member that rotates in conjunction with the rotation of the vehicle axle can be employed.
- each of the individual power generation units 122 jp is arranged at a Z position that receives a pressing force from a contact member 158 (described later) of the pressing member 152 jk via the pressure transmission member 130.
- FIG. 4 shows a cross-sectional view of a plane including the Z axis of the individual power generation unit 122 jp .
- each of the individual power generation units 122 jp is directed to the Z-axis (that is, along the ⁇ R direction) on the inner wall surface of the outer frame member 110 via an insulating sheet (not shown).
- Each of the piezoelectric elements 124 n generates a voltage when it receives a pressure in the R direction via the pressure transmission member 130.
- the voltage generated from each of the piezoelectric elements 124 n is transmitted to the outside through the terminal plates 123 and 128.
- Such piezoelectric elements 124 n each includes a piezoelectric body 126 n, the together with the electrode 125 n is formed on the R-direction side surface of the piezoelectric 126 n, the surface of the -R direction of the piezoelectric element 126 n
- An electrode 127 n is formed on the substrate.
- the electrodes 127 1 and 125 2 , the electrodes 127 2 and 125 3 , and the electrodes 127 3 and 125 4 are in contact with each other.
- the piezoelectric elements 124 1 to 124 4 stacked in four layers are electrically connected.
- the piezoelectric body 126 is made of a piezoelectric ceramic such as lead zirconate titanate ceramic or a piezoelectric single crystal.
- the electrodes 125 n and 127 n are formed of a metal or alloy such as Al, Ni, or Cu.
- the terminal plates 123 and 128 are connected to the power storage unit 800 that is an external device.
- the voltage generated in the piezoelectric elements 124 1 to 124 4 is supplied from the terminal plates 123 and 128 toward the power storage unit 800.
- the power storage unit 800 a power storage capacitor, a storage battery, or the like can be employed.
- Each of the pressing members 152 jk includes a first rod-shaped member 156, a second rod-shaped member 157, and a contact member 158, as shown in FIG.
- the first rod-shaped member 156 is, for example, a steel member, one end of which is fixed to the rotary shaft member 140 and the other end extends toward the pressure transmission member 130.
- the other end portion of the first rod-shaped member 156 is provided with a hole for inserting a pivot shaft member, and is connected to one end portion of the second rod-shaped member 157 via the pivot shaft member. ing.
- Said 2nd rod-shaped member 157 is a member made from steel, for example,
- the hole which inserts the shaft member for rotation in one edge part is provided, and with rotation center axis AZ via the shaft member for rotation, It is connected to the other end of the first rod-shaped member 156 so as to be rotatable about a parallel axis as a rotation center axis.
- the shape which connected the 1st rod-shaped member 156 and the 2nd rod-shaped member 157 becomes L shape, when it sees along a Z-axis direction, and the 2nd rod-shaped member 157 is the pressure transmission member 130. It can be rotated in the direction approaching and in the opposite direction.
- the second rod-shaped member 157 is provided with a hole for inserting a pivot shaft member at the other end, and is connected to the contact member 158 via the pivot shaft member.
- the contact member 158 is a columnar member having an axis parallel to the rotation center axis AZ as a center axis. A hole for inserting a shaft member for rotation is provided in a circular center portion of the columnar member, and the contact member 158 is connected to the other end of the second rod-shaped member 157.
- the contact member 158 presses the pressure transmission member 130, a pressing force is applied to the piezoelectric elements 124 1 to 124 4 described above.
- the rotating shaft member 140 fixedly attached to the rotating body 900 also rotates in the ⁇ direction.
- high-efficiency power generation can be realized with a simple structure using a piezoelectric element.
- the pressing member is configured by the six pressing members while the six pressing members are fixed to the rotating shaft member at equal intervals along the circumferential direction of the rotating shaft member.
- J sets of pressing units are prepared and fixed to the rotary shaft member at equal intervals along a direction parallel to the central axis of the rotary shaft member.
- the number of pressing members fixed to the rotating shaft member along the circumferential direction of the rotating shaft member may be 1 or more, 5 or less, or 7 or more.
- the number of pressing members constituting each pressing unit fixed along a direction parallel to the central axis of the rotating shaft member may be different for each pressing unit.
- the individual power generation unit is configured to include four layers of piezoelectric elements.
- the piezoelectric elements constituting the individual power generation unit may be 1 layer or more and 3 layers or less, or 5 layers. It is good also as above.
- the shape of the contact member that presses the pressure transmission member is a columnar shape, but the shape of the contact member may be, for example, a spherical shape.
- the surface of the pressure transmission member on the central axis side has been subjected to a friction reducing process using a lubricious material.
- the material on the central axis side surface is made of a lubricating material.
- a liquid lubricating material may be applied to the surface on the central axis side.
- a press member is provided with the 1st and 2nd rod-shaped member, and the shape which connected the 1st rod-shaped member and the 2nd rod-shaped member is L-shaped when it sees along a Z-axis direction. It was decided that.
- the pressing member may have another shape as long as a centrifugal force caused by the rotation of the rotating shaft member acts and presses the piezoelectric element by the centrifugal force.
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
図1には、一実施形態に係る発電装置100の外観図が示されている。また、図2には、発電装置100の平面視図が示されている。図1及び図2により総合的に示されるように、発電装置100は、円筒状の外枠部材110と、発電部120と、圧力伝達部材130とを備えている。また、発電装置100は、回転軸部材140と、押圧部材群150とを備えている。
以上のようにして構成された発電装置100の動作について、押圧部材152jkにより圧力伝達部材130を押圧し、圧電素子に押圧力を加えることによる発電動作に主に着目して説明する。
本発明は、上記の実施形態に限定されるものではなく、様々な変形が可能である。
Claims (9)
- 円筒状の外枠部材の内壁面上に配列された複数の圧電素子と;
前記外枠部材の中心軸を回転中心軸として回転する回転軸部材と;
前記複数の圧電素子上に設けられ、前記外枠部材の中心軸と平行な中心軸を有した円筒状の圧力伝達部材と;
前記回転軸部材に一端部が固定され、他端部が前記回転軸部材の回転に伴って前記圧力伝達部材上を移動するとともに、前記回転に起因して発生する遠心力により、前記圧力伝達部材を押圧する押圧部材と;
を備えることを特徴とする発電装置。 - 前記押圧部材は、
前記一端部を含み、前記圧力伝達部材に向かって延びる第1棒状部材と;
前記第1棒状部材の前記圧力伝達部材側の端部に、前記圧力伝達部材に近付く方向及びその反対方向に移動可能なように接続された第2棒状部材と;
前記第2棒状部材の前記第1棒状部材側とは反対側の端部に接続され、前記他端部を含む接触部材と;
を備えることを特徴とする請求項1に記載の発電装置。 - 前記第2棒状部材は、前記中心軸と平行な軸を回転中心軸として回動可能に、前記第1棒状部材の前記圧力伝達部材側の端部に接続される、ことを特徴とする請求項2に記載の発電装置。
- 前記接触部材は、前記中心軸と平行な軸を回転中心軸として回動可能に、前記第2棒状部材の前記第1棒状部材側とは反対側の端部に接続される、ことを特徴とする請求項2又は3に記載の発電装置。
- 前記接触部材は、前記中心軸と平行な軸を中心軸とする円柱状部材である、ことを特徴とする請求項2~4のいずれか一項に記載の発電装置。
- 前記回転軸部材には、前記回転軸部材の円周方向に沿って、複数の前記押圧部材が固定されている、ことを特徴とする請求項1~5のいずれか一項に記載の発電装置。
- 前記回転軸部材には、前記中心軸と平行な方向に沿って、複数の前記押圧部材が固定されている、ことを特徴とする請求項1~6のいずれか一項に記載の発電装置。
- 前記圧力伝達部材の前記中心軸側表面には、潤滑性材料による摩擦低減化処理が施されている、ことを特徴とする請求項1~7のいずれか一項に記載の発電装置。
- 円筒状の外枠部材の内壁面上に配列された複数の圧電素子と;前記外枠部材の中心軸を回転中心軸として回転する回転軸部材と;前記複数の圧電素子上に設けられ、前記外枠部材の中心軸と平行な中心軸を有した円筒状の圧力伝達部材と;前記回転軸部材に一端部が固定され、他端部が前記回転軸部材の回転に伴って前記圧力伝達部材上を移動するとともに、前記回転に起因して発生する遠心力により、前記圧力伝達部材を押圧する押圧部材と;を備える発電装置において使用される発電方法であって、
前記回転軸部材を回転させる回転工程と;
前記回転軸部材の回転により前記押圧部材の他端部を前記圧力伝達部材上の円周方向に沿って移動させつつ、前記回転に起因して発生する遠心力を利用して、前記押圧部材の他端部により前記圧力伝達部材を押圧する押圧工程と;
を備えることを特徴とする発電方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011550751A JP5406947B2 (ja) | 2010-01-21 | 2010-01-21 | 発電装置及び発電方法 |
US13/522,634 US8941288B2 (en) | 2010-01-21 | 2010-01-21 | Power generating apparatus and power generating method |
PCT/JP2010/050688 WO2011089699A1 (ja) | 2010-01-21 | 2010-01-21 | 発電装置及び発電方法 |
Applications Claiming Priority (1)
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PCT/JP2010/050688 WO2011089699A1 (ja) | 2010-01-21 | 2010-01-21 | 発電装置及び発電方法 |
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WO2011089699A1 true WO2011089699A1 (ja) | 2011-07-28 |
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PCT/JP2010/050688 WO2011089699A1 (ja) | 2010-01-21 | 2010-01-21 | 発電装置及び発電方法 |
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US (1) | US8941288B2 (ja) |
JP (1) | JP5406947B2 (ja) |
WO (1) | WO2011089699A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2014083957A (ja) * | 2012-10-23 | 2014-05-12 | Sumitomo Rubber Ind Ltd | タイヤ発電装置 |
Families Citing this family (4)
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CN103580537B (zh) * | 2013-11-06 | 2016-03-30 | 江苏联能电子技术有限公司 | 一种阶梯式压电发电机 |
US10536098B2 (en) * | 2016-02-12 | 2020-01-14 | Analog Devices, Inc. | Piezoelectric energy harvester for human motion |
GB2554374B (en) * | 2016-09-22 | 2021-10-27 | Arrival Ltd | Pedal assembly piezoelectric generator |
CN115410336A (zh) * | 2021-05-27 | 2022-11-29 | 西门子(深圳)磁共振有限公司 | 磁共振成像系统的报警装置和报警系统 |
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JPS645466U (ja) * | 1987-06-29 | 1989-01-12 | ||
JPH11330582A (ja) * | 1998-05-14 | 1999-11-30 | Murata Mfg Co Ltd | 発電装置 |
JP2002262584A (ja) * | 2001-03-01 | 2002-09-13 | Leben Co Ltd | 圧電素子を用いた発電機、および水力、風力を用いた発電機 |
JP2008240470A (ja) * | 2007-03-28 | 2008-10-09 | West Nippon Expressway Engineering Chugoku Co Ltd | 道路発光標識 |
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GB2200107B (en) | 1987-01-23 | 1990-06-20 | T & N Materials Res Ltd | Manufacture of sheet-form material from refractory powder. |
JPS645466A (en) | 1987-06-27 | 1989-01-10 | Mizuho Saeki | Production of novel bean curd |
KR100837926B1 (ko) * | 2006-12-06 | 2008-06-13 | 현대자동차주식회사 | 압전체를 이용하는 전원발생장치 |
US20120007473A1 (en) * | 2010-02-25 | 2012-01-12 | People & Environment Co., Ltd. | Piezoelectric generator unit using piezoelectric bimorph |
TWI420797B (zh) * | 2010-04-12 | 2013-12-21 | Univ Nat Sun Yat Sen | 壓電式發電裝置 |
TW201213167A (en) * | 2010-09-28 | 2012-04-01 | Foxsemicon Integrated Tech Inc | Tire and vehicle |
-
2010
- 2010-01-21 US US13/522,634 patent/US8941288B2/en not_active Expired - Fee Related
- 2010-01-21 JP JP2011550751A patent/JP5406947B2/ja not_active Expired - Fee Related
- 2010-01-21 WO PCT/JP2010/050688 patent/WO2011089699A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63190751U (ja) * | 1987-05-28 | 1988-12-08 | ||
JPS645466U (ja) * | 1987-06-29 | 1989-01-12 | ||
JPH11330582A (ja) * | 1998-05-14 | 1999-11-30 | Murata Mfg Co Ltd | 発電装置 |
JP2002262584A (ja) * | 2001-03-01 | 2002-09-13 | Leben Co Ltd | 圧電素子を用いた発電機、および水力、風力を用いた発電機 |
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JP2014083957A (ja) * | 2012-10-23 | 2014-05-12 | Sumitomo Rubber Ind Ltd | タイヤ発電装置 |
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JPWO2011089699A1 (ja) | 2013-05-20 |
JP5406947B2 (ja) | 2014-02-05 |
US20120299443A1 (en) | 2012-11-29 |
US8941288B2 (en) | 2015-01-27 |
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