JP2010063249A - Rail based electric power generation system - Google Patents

Rail based electric power generation system Download PDF

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JP2010063249A
JP2010063249A JP2008225377A JP2008225377A JP2010063249A JP 2010063249 A JP2010063249 A JP 2010063249A JP 2008225377 A JP2008225377 A JP 2008225377A JP 2008225377 A JP2008225377 A JP 2008225377A JP 2010063249 A JP2010063249 A JP 2010063249A
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piezoelectric member
piezoelectric
power generation
track
moving object
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Hisanori Onishi
久則 大西
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Daitsu Kk
Daitsu KK
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Daitsu KK
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    • 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
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rail based electric power generation system which generates electric power by efficiently utilizing the traveling load or traveling vibration load of a train, or the like, which is generated when a moving object such as a train travels on a rail and collecting the electric power as electric energy. <P>SOLUTION: A rail based electric power generation system includes a piezoelectric member which is arranged in a rail on which a moving object such as a train passes, takes out electricity generated from the piezoelectric member when the moving object passes on the piezoelectric member and stores the electricity in a battery through a charging circuit, wherein the piezoelectric member is a complex of a polymer material and piezoelectric ceramic particles dispersed into the polymer material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、軌道における発電装置に関するもので、圧電部材を用いることにより電気を得る装置に関するものである。   The present invention relates to a power generation device in an orbit, and relates to a device for obtaining electricity by using a piezoelectric member.

近年、地球環境の保全の面から、自然界や生活圏において活用されていなかったエネルギの回収が積極的に図られてきている。例えば、自然界の風力エネルギを回収する風力発電や波浪エネルギを回収する波浪発電が実用化され、生活圏では排熱エネルギを回収する排熱ボイラや排熱エンジン等が開発され実用化されてきている。   In recent years, in order to preserve the global environment, energy that has not been utilized in the natural world and living sphere has been actively collected. For example, wind power generation that recovers wind energy in the natural world and wave power generation that recovers wave energy have been put into practical use, and exhaust heat boilers and exhaust heat engines that recover exhaust heat energy have been developed and put into practical use in living areas. .

一方、高分子樹脂材料やセラミック材料の機能を拡大する観点の一つとして、力を加えて電気を発生させる又は電気を加えて力を発生させる圧電材料があり、近年この圧電材料を用いて電気として回収することが検討・開発されてきた。特に、車両等の移動物体が通行する場合に、道路面に加わる動荷重を電力に変える技術が開発されてきた。〔参考文献１，２〕
特開２００３−２３３８９４公報（〔００１０〕、〔００４４〜００４５〕） 特開２００６−１９７７０４公報（〔００１３〕、〔００１６〕） On the other hand, as one of the viewpoints of expanding the functions of polymer resin materials and ceramic materials, there is a piezoelectric material that generates electricity by applying force or generates force by applying electricity. It has been studied and developed to be recovered. In particular, when a moving object such as a vehicle passes, a technique for changing a dynamic load applied to a road surface into electric power has been developed. [References 1, 2]
JP2003-233894A ([0010], [0044-0045]) JP 2006-197704 A ([0013], [0016])

前記先行技術は、外力が加わることにより電気を発生させる圧電部材としては、チタン酸ジルコン酸鉛系の圧電セラミック板が採用されるか、又は圧電性高分子材料ＰＶＤＦ（ｐｏｌｙｖｉｎｙｌｉｄｅｎｅ ｆｌｕｏｒｉｄｅ）のフィルムが採用されている。これらの材料は、セラミック板は弾力性に乏しく折損し易い問題があり、また高分子材料は弾力性があるが耐荷重は小さいという問題がある。   In the prior art, as a piezoelectric member that generates electricity by applying an external force, a lead zirconate titanate-based piezoelectric ceramic plate or a piezoelectric polymer material PVDF (polyvinylidene fluoride) film is used. Has been. These materials have a problem that the ceramic plate has poor elasticity and easily breaks, and the polymer material has elasticity, but has a problem that the load resistance is small.

また、自動車等の車両は、電車等の列車とは異なり、道路上を軌道のように定点走行が困難であるし、道路に賦与する荷重も小さい。本発明は、これらの問題を解決したものであって、列車等の移動物体が軌道上を走行する際に発生する列車等の走行荷重や走行振動荷重である動荷重を効率よく利用して発電することにより、電気エネルギとして回収する軌道発電装置を提供するものである。   Further, unlike a train such as a train, a vehicle such as an automobile is difficult to travel on a fixed point like a track on a road, and a load applied to the road is small. The present invention solves these problems and efficiently uses a dynamic load that is a traveling load or a traveling vibration load of a train or the like generated when a moving object such as a train travels on a track. Thus, an orbital power generation device that recovers electric energy is provided.

上記の目的を達成するために、本発明の請求項１に係る軌道発電装置は、列車または車両の移動物体が通過する軌道に配設された圧電部材を備え、該圧電部材上を該移動物体が通過することにより該圧電部材で発生した電気を取り出すことを特徴とする。また、請求項２に係る軌道発電装置は、前記圧電部材に充電回路を介して接続されたバッテリを備えることを特徴とする。   In order to achieve the above object, a track power generator according to claim 1 of the present invention includes a piezoelectric member disposed on a track through which a moving object of a train or a vehicle passes, and the moving object is placed on the piezoelectric member. It is characterized in that electricity generated by the piezoelectric member is taken out by passing through. According to a second aspect of the present invention, there is provided an orbital power generation device including a battery connected to the piezoelectric member via a charging circuit.

これらの構成により、圧電部材上を前記移動物体が通過するときに、圧電部材に移動物体の荷重と走行に伴う振動荷重、いわゆる動荷重である走行荷重が繰り返し加わることにより電気を発電することができる。このように移動物体は必ず軌道を走行するから確実に発電に結び付けられるので効率よく発電できる。また、圧電部材に対して移動物体の走行荷重が、加重と抜重を繰り返しているから交流状態の発電が得られ、この発電を整流器で全波整流してバッテリに蓄える。電気の需要先には、発電が移動物体による間欠発電のためバッテリを経由して送電するのが好ましい。また、前記軌道発電装置は、得られる電力が小規模であるが、短距離区間の軌道に対してローカルに簡便に設置することができ、照明灯、指示サイン灯又は電飾広告等に用いられるＬＥＤ灯の電源として好適に用いることができる。   With these configurations, when the moving object passes over the piezoelectric member, electricity can be generated by repeatedly applying a load of the moving object and a vibration load accompanying traveling, that is, a so-called dynamic load, to the piezoelectric member. it can. In this way, since the moving object always travels on the track, it is reliably linked to power generation, so that power generation can be performed efficiently. Further, since the traveling load of the moving object on the piezoelectric member repeats weighting and extraction, AC power generation is obtained, and this power generation is full-wave rectified by a rectifier and stored in the battery. It is preferable that electricity is transmitted to a customer who uses electricity through a battery for intermittent power generation by a moving object. In addition, although the power generation device has a small amount of electric power, it can be easily installed locally on a short-distance section orbit, and is used for an illumination lamp, an instruction sign lamp, an electric advertisement, or the like. It can be suitably used as a power source for LED lamps.

また、請求項３に係る軌道発電装置は、前記圧電部材が、高分子材料と、該高分子材料中に分散された圧電性セラミック粒子と、の複合体であることを特徴とする。また、請求項４に係る軌道発電装置は、請求項３に係る軌道発電装置において、前記圧電性セラミック粒子が、チタン酸ジルコン酸鉛又はチタン酸ジルコン酸鉛とＭｇ、Ｎｂ、Ｃｏ、Ｍｎ、Ｓｂから選択された一種類以上の元素を含有する固溶体からなることを特徴とする。また、請求項５に係る軌道発電装置は、請求項３記載の軌道発電装置において、前記高分子材料が、ゴム、高分子樹脂又は強誘電性高分子樹脂のいずれかであることを特徴とする。   The track power generator according to claim 3 is characterized in that the piezoelectric member is a composite of a polymer material and piezoelectric ceramic particles dispersed in the polymer material. The track power generator according to claim 4 is the track power generator according to claim 3, wherein the piezoelectric ceramic particles are lead zirconate titanate or lead zirconate titanate and Mg, Nb, Co, Mn, Sb. It consists of a solid solution containing one or more elements selected from the above. The track power generator according to claim 5 is the track power generator according to claim 3, wherein the polymer material is any one of rubber, polymer resin, and ferroelectric polymer resin. .

これらの構成を採用することにより、軌道下に載置される圧電部材が弾力性を有し、機械的強度もある高分子材料中に、圧電性誘電セラミック粒子が分散して存在するように構成されている。列車等の移動物体の通過の際の動荷重である走行荷重が圧電部材に加わり効率よく発電できると共に、圧電部材自身が耐候性、耐振性、吸音性の材料であるから、軌道の耐振性、耐騒音性に貢献することができる。また、高分子材料が強誘電性高分子樹脂の場合には、圧電部材の発電能力を向上させることができる。また、前記圧電部材は、例えば強誘電セラミック粒子を高分子材料中に混合して混練することにより分散させ、次いでロール加工により板状に成型する。その後、両面に電極を形成し、強電界を掛ける分極処理を施して強誘電セラミック粒子の結晶粒に圧電性を付加して製造することができる。また、前記高分子材料が誘電率の大きい強誘電性高分子樹脂を用いた場合には、さらに大きい圧電性を付加した圧電部材を製造できる。軌道下の圧電部材としては、前記板状の圧電部材を積層して用いるのが、発電電圧の上昇が図られる点からも好ましい。 By adopting these configurations, the piezoelectric member placed under the track is elastic, and the piezoelectric dielectric ceramic particles are dispersed in the polymer material with mechanical strength. Has been. A traveling load, which is a dynamic load when passing a moving object such as a train, is applied to the piezoelectric member to efficiently generate power, and since the piezoelectric member itself is a weather, vibration, and sound absorbing material, the vibration resistance of the track, It can contribute to noise resistance. Moreover, when the polymer material is a ferroelectric polymer resin, the power generation capability of the piezoelectric member can be improved. The piezoelectric member is dispersed, for example, by mixing and kneading ferroelectric ceramic particles in a polymer material, and then forming into a plate shape by roll processing. Thereafter, electrodes can be formed on both surfaces and subjected to a polarization treatment that applies a strong electric field to add piezoelectricity to the crystal grains of the ferroelectric ceramic particles. Further, when a ferroelectric polymer resin having a large dielectric constant is used as the polymer material, a piezoelectric member to which a larger piezoelectric property is added can be manufactured. As the piezoelectric member under the track, it is preferable that the plate-like piezoelectric member is laminated and used from the viewpoint of increasing the generated voltage.

本発明に係る請求項１、２記載の軌道発電装置によれば、圧電部材を設置した軌道上を通過する列車等の移動物体の走行荷重を利用して発電することにより確実に効率よく電気として回収することができる。また、本発明に係る軌道発電装置は、短い区間の軌道に区切って設置できる簡便な装置であるから、照明灯、指示サイン灯又は電飾広告に用いられるＬＥＤ灯の点灯用電源として簡易に用いるのに適しているなど、局所用電源として最適である。このように未回収であったエネルギを電気エネルギとして回収することにより地球環境の保全の一助とすることができる。     According to the track power generator according to claims 1 and 2 of the present invention, it is possible to generate electricity reliably and efficiently by generating electricity using the traveling load of a moving object such as a train passing on the track on which the piezoelectric member is installed. It can be recovered. In addition, since the track power generation device according to the present invention is a simple device that can be installed by dividing it into a short section of track, it is easily used as a lighting power source for an illumination lamp, an instruction sign lamp or an electric advertisement. It is suitable as a local power source. By recovering the energy that has not been recovered in this way as electrical energy, it is possible to help preserve the global environment.

また、本発明に係る請求項３から５に記載の軌道発電装置によれば、圧電部材は高分子樹脂に圧電性セラミック粒子を分散させた複合体であるから、動荷重に対する圧電性能がよく、弾力性を有し、かつ機械的強度もあるので、しかも耐候性、耐振性、吸音性に富み、軌道下に設ける部材としても最適なものを得ることができる。また、この圧電部材は、積層することにより軌道発電装置に用いた場合に、発電電圧を高めることができ、装置の適用範囲を広げることができる。   According to the orbital power generation device according to claims 3 to 5 of the present invention, since the piezoelectric member is a composite in which piezoelectric ceramic particles are dispersed in a polymer resin, the piezoelectric performance with respect to dynamic load is good. Since it has elasticity and mechanical strength, it is rich in weather resistance, vibration resistance and sound absorption, and an optimum member can be obtained under the track. Moreover, when this piezoelectric member is used for an orbital power generation device by stacking, the generated voltage can be increased and the applicable range of the device can be expanded.

本発明の軌道発電装置を実施するための最良の形態について図１，２を用いて説明する。図１は、本発明の実施するための最良の形態に係る軌道発電装置であって、コンクリート製スラブ軌道に適用し、（ａ）は模式的全体斜視図、（ｂ）はＡ−Ａ矢視の断面図である。図２は、本発明の実施するための最良の形態に係る別の軌道発電装置であって、バラス道床軌道に適用し、（ａ）は模式的全体斜視図、（ｂ）はＢ−Ｂ矢視の断面図である。   The best mode for carrying out the track power generator of the present invention will be described with reference to FIGS. FIG. 1 is a track power generation device according to the best mode for carrying out the present invention, which is applied to a concrete slab track, (a) is a schematic overall perspective view, and (b) is an AA arrow view. FIG. FIG. 2 is another track power generation device according to the best mode for carrying out the present invention, which is applied to a ballast track bed track, (a) is a schematic overall perspective view, and (b) is a BB arrow. FIG.

図１に示すように、本発明に係る軌道発電装置１は、列車等の移動物体が走行する軌条６と、軌条６をコンクリート製軌道スラブ８に、敷板７、圧電部材２、敷板７を介して軌間寸法が狂わないように締結されている構成をとる。軌条６は通常鋼製のロングレールが用いられ、２枚の敷板７も通常金属製であり、圧電部材２は敷板７間に挟持されている。圧電部材２は、図１ｂに示すように、板状の圧電部材２−ａを積層して構成され、電圧を高めるために圧延部材２−ａの電極を直列に接続した形態をとる。本図は、板状圧電部材２−ａを積層した例を示すが、一層の圧電部材２−ａでも十分機能するものである。   As shown in FIG. 1, a track power generator 1 according to the present invention includes a rail 6 on which a moving object such as a train travels, and a rail 6 on a concrete track slab 8 via a floor plate 7, a piezoelectric member 2, and the floor plate 7. Therefore, the structure is fastened so that the gauge distance does not go wrong. The rail 6 is usually made of a steel long rail, the two base plates 7 are also usually made of metal, and the piezoelectric member 2 is sandwiched between the base plates 7. As shown in FIG. 1B, the piezoelectric member 2 is configured by laminating plate-like piezoelectric members 2-a, and takes a form in which the electrodes of the rolling members 2-a are connected in series to increase the voltage. This figure shows an example in which the plate-like piezoelectric member 2-a is laminated, but a single-layer piezoelectric member 2-a also functions sufficiently.

また、図１には、二列の軌条６の下に、軌条６の直角方向に２個の敷板７、圧電部材２、敷板７のブロックを配設し、積層された圧電部材２の両端電極から配線５が各々の圧電部材に接続され、整流器３により全波整流して直流に変換した後、バッテリ４に発電した電気を蓄える。バッテリ４から需要先に配電するのは従前のとおりである。圧電部材２は、単層の圧電部材２−ａとして構成することができるが、多数の板状圧電部材２−ａを積層して構成した方が発電電圧を高められるので好ましい。   In FIG. 1, two bottom plates 7, a piezoelectric member 2, and a block of the bottom plate 7 are arranged below the two rows of rails 6 in a direction perpendicular to the rails 6. The wiring 5 is connected to each piezoelectric member, and full-wave rectified by the rectifier 3 and converted into direct current, and then the electricity generated in the battery 4 is stored. The distribution of power from the battery 4 to the customer is as before. The piezoelectric member 2 can be configured as a single-layer piezoelectric member 2-a, but it is preferable to stack a large number of plate-shaped piezoelectric members 2-a because the generated voltage can be increased.

圧電部材２は、高分子材料と、該高分子材料中に分散された圧電性セラミック粒子と、の複合体から構成される。前記圧電性セラミックは、チタン酸ジルコン酸鉛（ＰｂＴｉＯ３とＰｂＺｒＯ３との固溶体で、ＰＺＴと略称される。）または、ＰＺＴとＭｇ、Ｎｂ、Ｃｏ、Ｍｎ、Ｓｂから選択された一種類以上の元素を含有する固溶体であって、この結晶構造はペロブスカイト（ＣａＴｉＯ３）型でＡＢＯ３と略記されるもので、Ｂには小さいイオンであるＴｉ４＋，Ｚｒ４＋、Ｍｇ２＋、Ｍｇ２＋、Ｎｂ５＋、Ｃｏ２＋、Ｍｎ２＋、Ｓｂ５＋などが入り、原子数Ａ：Ｂが１：１であれば同じ結晶構造を保てるので、圧電性が発揮できる。圧電部材２としては、圧電率が大きく、低電界で容易に分極可能なものが好ましく、前記固溶体を適切に選択合成することにより、安価で所望の形状・寸法のものを得ることができる。 The piezoelectric member 2 is composed of a composite of a polymer material and piezoelectric ceramic particles dispersed in the polymer material. The piezoelectric ceramic is lead zirconate titanate (a solid solution of PbTiO 3 and PbZrO 3 and abbreviated as PZT) or one or more kinds selected from PZT and Mg, Nb, Co, Mn, and Sb. It is a solid solution containing an element, and its crystal structure is a perovskite (CaTiO 3 ) type and is abbreviated as ABO 3. B is a small ion of Ti 4+ , Zr 4+ , Mg 2+ , Mg 2+ , Nb 5+ , Co 2+ , Mn 2+ , Sb 5+ and the like, and if the number of atoms A: B is 1: 1, the same crystal structure can be maintained, so that piezoelectricity can be exhibited. The piezoelectric member 2 preferably has a high piezoelectricity and can be easily polarized with a low electric field. By appropriately selecting and synthesizing the solid solution, a member having a desired shape and size can be obtained at a low cost.

高分子材料としては、ゴムやポリアセタール等の高分子樹脂又は強誘電体高分子樹脂であるＰＶＤＦ（ｐｏｌｙｖｉｎｙｌｉｄｅｎｅ ｆｌｕｏｒｉｄｅ）が選択して用いられる。これらの高分子材料としては、セラミック粒子の充填性がよく、機械的性質が優れていることが特徴である。また、誘電率の大きい樹脂をマトリックスとして用いると、大きな圧電率を呈するので好ましい。   As the polymer material, polymer resin such as rubber or polyacetal, or PVDF (polyvinylidene fluoride) which is a ferroelectric polymer resin is selected and used. These polymer materials are characterized by good filling of ceramic particles and excellent mechanical properties. In addition, it is preferable to use a resin having a high dielectric constant as a matrix because a large piezoelectric constant is exhibited.

前記圧電材料２は、例えば、次のようにして製造することができる。高分子材料と強誘電体セラミック粒子とをオープン加熱ロールを用いて溶融混練して、高分子材料中に強誘電体セラミック粒子を分散せしめた複合体を作る。次いで、得られた混練物をカレンダ成型することによりシート状又は薄板状の複合体を得る。次いで、複合体シートの両面にＡｌを蒸着し、これを電極として強電界を掛けた分極処理を施すことで、圧電性を示す圧電部材２を得ることができる。この場合、セラミックの粒子径が小さすぎると結晶ドメインより小さくなり、圧電率が小さくなるし、また高分子材料への分散も悪くなる、また、粒子径が大きすぎると、高分子材料への分散が不均一になり易く、分極処理の際に絶縁破壊が生ずる恐れがあるので、圧電性セラミック粒子の適性粒径範囲は２〜１０μｍである。   The piezoelectric material 2 can be manufactured, for example, as follows. The polymer material and the ferroelectric ceramic particles are melt-kneaded using an open heating roll to form a composite in which the ferroelectric ceramic particles are dispersed in the polymer material. Next, the obtained kneaded product is calendered to obtain a sheet-like or thin plate-like composite. Subsequently, Al is vapor-deposited on both surfaces of the composite sheet, and a piezoelectric member 2 exhibiting piezoelectricity can be obtained by applying a polarization treatment using this as an electrode and applying a strong electric field. In this case, if the particle size of the ceramic is too small, it will be smaller than the crystal domain, the piezoelectricity will be small, and the dispersion in the polymer material will be poor, and if the particle size is too large, the dispersion in the polymer material will be reduced. Is likely to be non-uniform, and there is a risk that dielectric breakdown may occur during the polarization treatment. Therefore, the suitable particle size range of the piezoelectric ceramic particles is 2 to 10 μm.

図２の場合、バラス道床軌道における軌道発電装置１について、コンクリート製軌道スラブ８における軌道発電装置１と異なる構成について説明する。図２に示すように、本発明に係る軌道発電装置１は、列車等の移動物体が走行する軌条６と、軌条６をコンクリート製または木製枕木１２に軌間寸法が狂わないように締結すると共に、枕木１２の全長に亘り枕木１２の下面に接して圧電部材２、敷板７を道床９上に載置した構成をとる。軌条６は通常鋼製のロングレールが用いられ、敷板７は通常金属製であり、圧電部材２が枕木１２と敷板７により挟持されている。   In the case of FIG. 2, a configuration different from the track power generation device 1 in the concrete track slab 8 will be described for the track power generation device 1 in the ballast roadbed track. As shown in FIG. 2, the track power generator 1 according to the present invention fastens the rail 6 on which a moving object such as a train travels, and the rail 6 to a concrete or wooden sleeper 12 so that the distance between the rails does not go wrong. The piezoelectric member 2 and the floor plate 7 are placed on the road bed 9 in contact with the lower surface of the sleeper 12 over the entire length of the sleeper 12. The rails 6 are usually made of steel long rails, the base plate 7 is usually made of metal, and the piezoelectric member 2 is sandwiched between the sleepers 12 and the base plate 7.

本発明に係る軌道発電装置１の作用について説明すると、列車等の移動物体が軌道６上を走行する際に発生する列車等の走行荷重や走行振動荷重等の動荷重が軌道下の敷板７又は枕木１２を介して別の敷板７上に狭持される圧電部材２に対して加重と抜重を繰り返して加わる、すなわち動荷重方向が正負と変動する動荷重により圧電部材２から交流状態の電気を発電することができ、この電気を整流器３で全波整流してバッテリ４に蓄える。本発明に係る圧電部材２は、樹脂やゴムなどの高分子にＰＺＴなどの強誘電体セラミック微粒子を分散し分極処理したものであり、その圧電性は強誘電体微粒子の結晶粒自身の圧電性による結晶効果に起因するものである。すなわち、強誘電性結晶が強制的に自発分極を持つから、これが歪によって変化するので大きな圧電率を持つ。また、誘電率の大きい樹脂であるＰＶＤＦをマトリックスとして用いるとさらに大きい圧電率をえることができる。このように、本発明に係る軌道発電装置は、短い区間の軌道に区切って設置できる簡便な装置であるから、照明灯、指示サイン灯又は電飾広告に用いられるＬＥＤ灯の点灯用電源として簡易に用いるのに適しているなど、局所用電源として最適である。   The operation of the track power generator 1 according to the present invention will be described. When a moving object such as a train travels on the track 6, a dynamic load such as a train load or a traveling vibration load generated by the train or the like is generated under the track 7 or The piezoelectric member 2 sandwiched on the other floor plate 7 via the sleeper 12 is repeatedly subjected to weighting and pulling. That is, the piezoelectric member 2 generates electric current in an alternating state by a dynamic load whose dynamic load direction varies between positive and negative. The electricity can be generated, and this electricity is full-wave rectified by the rectifier 3 and stored in the battery 4. The piezoelectric member 2 according to the present invention is obtained by dispersing ferroelectric ceramic fine particles such as PZT in a polymer such as resin or rubber and performing polarization treatment, and the piezoelectricity is the piezoelectricity of crystal grains of the ferroelectric fine particles themselves. This is due to the crystal effect of. That is, since the ferroelectric crystal is forced to have spontaneous polarization, it changes due to strain and thus has a large piezoelectric constant. Further, when PVDF, which is a resin having a high dielectric constant, is used as a matrix, a higher piezoelectric constant can be obtained. As described above, the track power generation device according to the present invention is a simple device that can be installed by dividing it into a short section of track, so that it can be easily used as a lighting power source for LED lights used for illumination lamps, instruction sign lamps, or electric advertisements. Suitable for use as a local power source.

また、本発明に係る軌道発電装置１は、前述した場合以外でも、自動車等の車両である移動物体が通過する場所が決められて、定点的に走行できる場所、例えばＥＴＣ料金所に設置して電気的エネルギとして回収することも可能である。このように、移動物体の走行条件さえ整えば、前述したことに囚われず、本発明に係る軌道発電装置１を適用することが0.できる。   Further, the track power generation apparatus 1 according to the present invention is installed in a place where a moving object that is a vehicle such as an automobile passes, and can travel at a fixed point, for example, an ETC toll gate, other than the cases described above. It can also be recovered as electrical energy. In this way, as long as the traveling conditions of the moving object are adjusted, the above-described orbital power generation device 1 according to the present invention can be applied without being restricted by the above.

車両や列車等の移動物体が軌道や通路を走行する場所において、小規模電力供給装置として利用できる。これにより二酸化炭素の削減に寄与して地球環境の保全方法としても利用できる。   It can be used as a small-scale power supply device where a moving object such as a vehicle or a train travels on a track or a passage. This contributes to the reduction of carbon dioxide and can be used as a global environmental conservation method.

本発明の実施するための最良の形態に係る軌道発電装置であって、（ａ）は模式的全体斜視図、（ｂ）はＡ−Ａ矢視の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a track power generator according to the best mode for carrying out the present invention, wherein (a) is a schematic overall perspective view, and (b) is a cross-sectional view taken along line AA. 本発明の実施するための最良の形態に係る別の軌道発電装置であって、（ａ）は模式的全体斜視図、（ｂ）はＢ−Ｂ矢視の断面図である。It is another orbital power generator concerning the best form for carrying out the present invention, (a) is a typical whole perspective view, and (b) is a sectional view of a BB arrow.

符号の説明Explanation of symbols

１：軌道発電装置 ２、２−ａ：圧電部材 ３：整流器
４：バッテリー ５：配線 ６：軌条 ７：敷板
８：軌道スラブ ９：道床 １０：路盤 １１：モルタル １２：枕木 1: Orbital power generator 2, 2-a: Piezoelectric member 3: Rectifier
4: Battery 5: Wiring 6: Rail 7: Base plate 8: Track slab 9: Road bed 10: Roadbed 11: Mortar 12: Sleeper

Claims (5)

列車または車両の移動物体が通過する軌道に配設された圧電部材を備え、該圧電部材上を該移動物体が通過することにより該圧電部材で発生した電気を取り出すことを特徴とする軌道発電装置。   An orbital power generator comprising a piezoelectric member disposed on a track through which a moving object of a train or vehicle passes, and taking out electricity generated by the piezoelectric member as the moving object passes over the piezoelectric member . 前記圧電部材に充電回路を介して接続されたバッテリを備えることを特徴とする請求項１記載の軌道発電装置。   The orbital power generator according to claim 1, further comprising a battery connected to the piezoelectric member via a charging circuit. 前記圧電部材が、高分子材料と、該高分子材料中に分散された圧電性セラミック粒子と、の複合体であることを特徴とする請求項１または２記載の軌道発電装置。   3. The orbital power generator according to claim 1, wherein the piezoelectric member is a composite of a polymer material and piezoelectric ceramic particles dispersed in the polymer material. 前記圧電性セラミック粒子が、チタン酸ジルコン酸鉛又はチタン酸ジルコン酸鉛とＭｇ，Ｎｂ,Ｃｏ,Ｍｎ,Ｓｂから選択された一種類以上の元素を含有する固溶体からなることを特徴とする請求項３記載の軌道発電装置。   The piezoelectric ceramic particles are made of a solid solution containing lead zirconate titanate or lead zirconate titanate and one or more elements selected from Mg, Nb, Co, Mn, and Sb. 3. The orbital power generation device according to 3. 前記高分子材料が、ゴム、高分子樹脂又は強誘電性高分子樹脂のいずれかであることを特徴とする請求項３記載の軌道発電装置。   4. The orbital power generator according to claim 3, wherein the polymer material is any one of rubber, polymer resin, and ferroelectric polymer resin.
JP2008225377A 2008-09-03 2008-09-03 Rail based electric power generation system Withdrawn JP2010063249A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014212307A (en) * 2013-04-01 2014-11-13 富士フイルム株式会社 Electroacoustic conversion film
RU2545015C2 (en) * 2011-02-08 2015-03-27 Александр Александрович Мягков Entropy generator
WO2017146536A1 (en) * 2015-06-24 2017-08-31 정기장 Electric power generation system using load of electric railway vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2545015C2 (en) * 2011-02-08 2015-03-27 Александр Александрович Мягков Entropy generator
JP2014212307A (en) * 2013-04-01 2014-11-13 富士フイルム株式会社 Electroacoustic conversion film
US9621997B2 (en) 2013-04-01 2017-04-11 Fujifilm Corporation Electroacoustic transduction film
KR101777491B1 (en) * 2013-04-01 2017-09-11 후지필름 가부시키가이샤 Electroacoustic transduction film
WO2017146536A1 (en) * 2015-06-24 2017-08-31 정기장 Electric power generation system using load of electric railway vehicle

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