JP2014236540A - Power transmission device for non-contact charging - Google Patents

Power transmission device for non-contact charging Download PDF

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JP2014236540A
JP2014236540A JP2013114928A JP2013114928A JP2014236540A JP 2014236540 A JP2014236540 A JP 2014236540A JP 2013114928 A JP2013114928 A JP 2013114928A JP 2013114928 A JP2013114928 A JP 2013114928A JP 2014236540 A JP2014236540 A JP 2014236540A
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power transmission
power
transmission coil
coil
transmission device
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JP6145318B2 (en
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堀　智
Satoshi Hori
智 堀
山本　貴久
Takahisa Yamamoto
貴久 山本
隆伸 田端
Takanobu Tabata
隆伸 田端
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Kojima Industries Corp
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Kojima Press Industry Co Ltd
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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Abstract

PROBLEM TO BE SOLVED: To provide a power transmission device for non-contact charging which enables a substantially flat floor surface to be formed with no large step.SOLUTION: A power transmission device 20 includes: a power transmission coil member 21 which includes a power transmission coil 22 and a flexible sheet material 23 for covering the coil and is disposed at a track of an electric vehicle 11 equipped with a power reception coil 31; and an electric supply line 25 for supplying electric power to the power transmission coil 22. The power transmission device 20 is applied to a non-contact charging system 10 of the electric vehicle 11. The power transmission coil member 21 has a flexible sheet shape.

Description

本発明は、非接触充電用送電装置に関し、特に電気自動車やハイブリッド車、或いは工場内等を走行する無人搬送車（以下、「ＡＧＶ」という）の充電に好適な非接触充電用送電装置に関する。   The present invention relates to a non-contact charging power transmission device, and more particularly to a non-contact charging power transmission device suitable for charging an electric vehicle, a hybrid vehicle, or an automated guided vehicle (hereinafter referred to as “AGV”) traveling in a factory or the like.

電気自動車やＡＧＶ等の電動車両の充電システムとして、非接触充電システムが知られている。例えば、特許文献１には、プリント基板の第１の層に設けられた一次コイルと、プリント基板の第２の層に設けられた共鳴コイルとを備えた、非接触充電システムに適用される送電装置が開示されている。   A contactless charging system is known as a charging system for electric vehicles such as electric vehicles and AGVs. For example, Patent Document 1 discloses a power transmission applied to a non-contact charging system including a primary coil provided in a first layer of a printed circuit board and a resonance coil provided in a second layer of the printed circuit board. An apparatus is disclosed.

特開２０１０−７３９７６号公報JP 2010-73976 A

ところで、従来の送電装置では、図６（給電線等は省略）に例示するように、電動車両が走行する路面１０２上に送電コイル１０１が内蔵された送電ボックス１００を設置する必要がある。例えば、当該送電ボックス１００を路面１０２上に常設して、これにより大きな段差が形成されると、通行の妨げとなる場合がある。   By the way, in the conventional power transmission device, it is necessary to install the power transmission box 100 in which the power transmission coil 101 is built on the road surface 102 on which the electric vehicle travels, as illustrated in FIG. For example, if the power transmission box 100 is permanently installed on the road surface 102 and a large level difference is thereby formed, it may hinder traffic.

本発明に係る非接触充電用送電装置において、送電コイル及び該コイルを被覆する可撓性シートを含み、受電コイルを搭載した電動車両の走行路に配置される送電コイル部材と、前記送電コイルに電力を供給するための給電線と、を備えた、前記電動車両の非接触充電システムに適用される送電装置であって、前記送電コイル部材は、可撓性のあるシート形状を有することを特徴とする。また、当該送電装置において、前記給電線は、可撓性のある帯状に形成されていることが好適である。   In the power transmission device for contactless charging according to the present invention, the power transmission coil member includes a power transmission coil and a flexible sheet that covers the coil, and is disposed on a traveling path of an electric vehicle equipped with the power reception coil. A power transmission device that is applied to a non-contact charging system for the electric vehicle, wherein the power transmission coil member has a flexible sheet shape. And In the power transmission device, it is preferable that the power supply line is formed in a flexible belt shape.

本発明に係る非接触充電用送電装置において、１枚の前記送電コイル部材に複数の前記送電コイルを設けることができる。   In the power transmission device for contactless charging according to the present invention, a plurality of the power transmission coils can be provided on one power transmission coil member.

本発明に係る非接触充電用送電装置によれば、送電コイルをシート状とすることで、大きな段差のない略平坦な路面を形成することができる。これにより、送電装置が通行の妨げとなることを防止できる。シート状の送電コイルは、持ち運び、位置変更が容易であり、また筒状に丸めて収納することも可能である。   According to the power transmission device for contactless charging according to the present invention, a substantially flat road surface without a large step can be formed by forming the power transmission coil into a sheet shape. Thereby, it can prevent that a power transmission apparatus obstructs passage. The sheet-shaped power transmission coil can be easily carried and changed in position, and can be stored in a cylindrical shape.

本発明の第１の実施形態である電動車両の非接触充電システムを模式的に示す図である。It is a figure showing typically the non-contact charge system of the electric vehicles which are the 1st embodiment of the present invention. 図１の非接触充電システムに適用される送電装置を模式的に示す図である。It is a figure which shows typically the power transmission apparatus applied to the non-contact charge system of FIG. 図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 本発明の第２の実施形態である電動車両の非接触充電システムを模式的に示す図である。It is a figure which shows typically the non-contact charge system of the electric vehicle which is the 2nd Embodiment of this invention. 本発明の第３の実施形態である電動車両の非接触充電システムを構成する送電装置を模式的に示す図である。It is a figure which shows typically the power transmission apparatus which comprises the non-contact charge system of the electric vehicle which is the 3rd Embodiment of this invention. 従来の非接触充電システムを構成する送電装置を模式的に示す図である。It is a figure which shows typically the power transmission apparatus which comprises the conventional non-contact charge system.

以下、図面を参照しながら、本発明の実施形態の一例について詳細に説明する。
なお、各図面（図１，３を除く）では、図面の明瞭化の観点から、実際には見えない送電コイル２２等を実線で図示している。 Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.
In each drawing (excluding FIGS. 1 and 3), the power transmission coil 22 and the like that are not actually visible are shown by solid lines from the viewpoint of clarifying the drawing.

図１は、第１の実施形態である非接触充電システム１０の概略構成を示す。
図１に示すように、非接触充電システム１０は、送電装置２０と、電動車両１１に搭載される受電装置３０と、各装置を制御して電動車両１１の非接触充電を実行する図示しない制御装置とを備える。送電装置２０は、電動車両１１の走行路に配置される。ここで、走行路には、電動車両１１が通る道路、駐車場やサービスステーション等の車両停車位置も含まれる。 FIG. 1 shows a schematic configuration of a contactless charging system 10 according to the first embodiment.
As shown in FIG. 1, the non-contact charging system 10 includes a power transmission device 20, a power receiving device 30 mounted on the electric vehicle 11, and a control (not shown) that controls each device to perform non-contact charging of the electric vehicle 11. Device. The power transmission device 20 is disposed on the travel path of the electric vehicle 11. Here, the travel path includes a road through which the electric vehicle 11 passes, and a vehicle stop position such as a parking lot or a service station.

図１に示す例では、駐車場の電動車両１１の停止位置に送電装置２０を構成する１つの送電コイル部材２１が配置され、電動車両１１の停車時に非接触充電を行う。例えば、送電コイル部材２１の上に電動車両１１の受電装置３０が位置するときに、送電コイル部材２１から電力伝送用の電磁波が送電される。そして、受電装置３０の受電コイル３１により当該電磁波を受波し、これに基づく電力によって電動車両１１に搭載されたバッテリ１２が充電される。   In the example illustrated in FIG. 1, one power transmission coil member 21 constituting the power transmission device 20 is disposed at a stop position of the electric vehicle 11 in a parking lot, and performs non-contact charging when the electric vehicle 11 stops. For example, when the power receiving device 30 of the electric vehicle 11 is positioned on the power transmission coil member 21, an electromagnetic wave for power transmission is transmitted from the power transmission coil member 21. And the said electromagnetic waves are received by the receiving coil 31 of the power receiving apparatus 30, and the battery 12 mounted in the electric vehicle 11 is charged with the electric power based on this.

送電装置２０は、送電コイル部材２１、送電コイル部材２１に電力を供給する電源回路２４、送電コイル部材２１と電源回路２４とを接続する給電線２５、及び図示しないキャパシタ等を備える。送電コイル部材２１は、詳しくは後述するように（図２，３参照）、電力伝送用の電磁波を送電する送電部としての機能を有する送電コイル２２を含む。送電コイル２２は、例えば平面状に周回する導線によって形成される。   The power transmission device 20 includes a power transmission coil member 21, a power supply circuit 24 that supplies power to the power transmission coil member 21, a power supply line 25 that connects the power transmission coil member 21 and the power supply circuit 24, a capacitor (not shown), and the like. As will be described in detail later (see FIGS. 2 and 3), the power transmission coil member 21 includes a power transmission coil 22 that functions as a power transmission unit that transmits electromagnetic waves for power transmission. The power transmission coil 22 is formed by, for example, a conductive wire that circulates in a planar shape.

受電装置３０は、電力伝送用の電磁波を受波する受波部としての機能を有する受電コイル３１、受電コイル３１とバッテリ１２との間に設けられる充電回路３２、及び図示しないキャパシタ等を備える。即ち、受電コイル３１は充電回路３２に接続され、充電回路３２にはバッテリ１２が接続されている。受電コイル３１は、例えば送電コイル２２と同様に、平面状に周回する導線（コイル線）によって形成される。   The power receiving device 30 includes a power receiving coil 31 having a function as a wave receiving unit that receives an electromagnetic wave for power transmission, a charging circuit 32 provided between the power receiving coil 31 and the battery 12, a capacitor (not shown), and the like. That is, the power receiving coil 31 is connected to the charging circuit 32, and the battery 12 is connected to the charging circuit 32. The power receiving coil 31 is formed by a conducting wire (coil wire) that circulates in a planar shape, for example, like the power transmitting coil 22.

非接触充電（給電）の方式は、特に限定されず、例えば電磁誘導方式、共鳴方式のいずれであってもよい。共鳴方式の場合、送電コイル２２から受電コイル３１への電力伝送は、送電コイル２２側の回路と受電コイル３１側の回路との結合共振（共鳴）によって行われる。送電コイル２２は、例えばキャパシタと共に送電側の共振回路を形成し、受電コイル３１は、キャパシタと共に受電側の共振回路を形成する。送電側と受電側とで共振周波数を同一の周波数とし、送電側の共振回路と受電側の共振回路を該周波数で結合共振させる。これにより、送電コイル２２と受電コイル３１とを機械的に接触させることなく、送電装置２０から電動車両１１に電力を供給することができる。   The method of non-contact charging (power feeding) is not particularly limited, and for example, either an electromagnetic induction method or a resonance method may be used. In the case of the resonance method, power transmission from the power transmission coil 22 to the power reception coil 31 is performed by coupling resonance (resonance) between the circuit on the power transmission coil 22 side and the circuit on the power reception coil 31 side. The power transmission coil 22 forms a power transmission side resonance circuit together with, for example, a capacitor, and the power reception coil 31 forms a power reception side resonance circuit together with the capacitor. The resonance frequency is the same on the power transmission side and the power reception side, and the resonance circuit on the power transmission side and the resonance circuit on the power reception side are coupled and resonated at the frequency. Thereby, electric power can be supplied from the power transmission device 20 to the electric vehicle 11 without mechanically contacting the power transmission coil 22 and the power reception coil 31.

以下、図２，３をさらに参照して、送電装置２０の構成、特に送電コイル部材２１及び給電線２５の構成について詳説する。   Hereinafter, the configuration of the power transmission device 20, particularly the configuration of the power transmission coil member 21 and the feeder line 25, will be described in detail with further reference to FIGS.

図１〜３に示すように、送電コイル部材２１は、可撓性のあるシート形状を有する。ここで、可撓性とは、柔軟で曲げることが可能な性質を意味する。送電コイル部材２１が可撓性を有することで持ち運びや収納が容易になる。また、シート形状とは、厚みが薄く、面積の大きな平べったい形状を意味する。具体的には、厚みに対するシート面の内接円の直径が１０倍程度以上である形状が好ましい。送電コイル部材２１をシート化することにより、送電コイル部材２１を設置した場合にも路面が略平坦となり、通行の妨げにならない。また、設置が容易であり、路面に凹凸があっても設置可能である。   As shown in FIGS. 1-3, the power transmission coil member 21 has a flexible sheet | seat shape. Here, the flexibility means a property that is soft and bendable. Since the power transmission coil member 21 is flexible, it can be easily carried and stored. The sheet shape means a flat shape having a small thickness and a large area. Specifically, a shape in which the diameter of the inscribed circle of the sheet surface with respect to the thickness is about 10 times or more is preferable. By forming the power transmission coil member 21 into a sheet, even when the power transmission coil member 21 is installed, the road surface becomes substantially flat and does not hinder traffic. Moreover, installation is easy and can be performed even if the road surface is uneven.

１枚の送電コイル部材２１は、例えば１つの送電コイル２２と、該コイルを被覆する可撓性シートであるシート材２３とで構成される。送電コイル部材２１を構成するシート材２３は、可撓性を有する非金属材料であれば特に限定されない。例えば、プラスチック（樹脂）、ゴム、布等を用いることができる。即ち、送電コイル部材２１は、送電コイル２２がシート材２３で覆われて保護された構造を有する。   One power transmission coil member 21 includes, for example, one power transmission coil 22 and a sheet material 23 that is a flexible sheet that covers the coil. The sheet material 23 constituting the power transmission coil member 21 is not particularly limited as long as it is a non-metallic material having flexibility. For example, plastic (resin), rubber, cloth, etc. can be used. That is, the power transmission coil member 21 has a structure in which the power transmission coil 22 is covered and protected by the sheet material 23.

送電コイル部材２１の形状・寸法は、特に限定されず、電気自動車等の電動車両１１に用いる場合、例えば３０ｃｍ角〜４０ｃｍ角程度の寸法を有する四角形状のシート形状とすることができる。また、送電コイル部材２１を構成する送電コイル２２は、図１に示す丸型コイルに限定されず、角型コイル（図５参照）等その他の形状であってもよい。   The shape and dimensions of the power transmission coil member 21 are not particularly limited, and when used for the electric vehicle 11 such as an electric vehicle, for example, a rectangular sheet shape having a dimension of about 30 cm square to 40 cm square can be used. Moreover, the power transmission coil 22 which comprises the power transmission coil member 21 is not limited to the round coil shown in FIG. 1, It may be other shapes, such as a square coil (refer FIG. 5).

送電コイル部材２１は、例えば２枚のシート材２３を準備して送電コイル２２を挟み込んで製造することができる。具体的には、送電コイル２２よりも大きな２枚のシート材２３の間に送電コイル２２を挟んで、シート材２３同士、及び各シート材２３と送電コイル２２とを接着剤等を用いて接合することにより製造できる。或いは、プラスチック材料等を用いてインサート成形により製造されてもよい。   The power transmission coil member 21 can be manufactured, for example, by preparing two sheet materials 23 and sandwiching the power transmission coil 22. Specifically, the power transmission coil 22 is sandwiched between two sheet materials 23 larger than the power transmission coil 22, and the sheet materials 23 and each sheet material 23 and the power transmission coil 22 are joined using an adhesive or the like. Can be manufactured. Alternatively, it may be manufactured by insert molding using a plastic material or the like.

給電線２５は、送電コイル２２に電力を供給するためのケーブルであって、上記のように送電コイル２２と電源回路２４とを接続する。給電線２５は、導線を樹脂等で被覆した構造を有し、可撓性のある帯状に形成されていることが好適である。ここで、帯状とは、厚みが薄く、所定幅を有する細長い形状を意味する。給電線２５は、例えば送電コイル部材２１よりも厚みが薄く、一定の幅を有する。   The power supply line 25 is a cable for supplying power to the power transmission coil 22 and connects the power transmission coil 22 and the power supply circuit 24 as described above. The power supply line 25 preferably has a structure in which a conducting wire is covered with a resin or the like and is formed in a flexible belt shape. Here, the band shape means an elongated shape having a small thickness and a predetermined width. For example, the power supply line 25 is thinner than the power transmission coil member 21 and has a certain width.

以上のように、送電装置２０を備える非接触充電システム１０によれば、送電コイル２２及び給電線２５をシート状、帯状とすることで、大きな段差のない略平坦な路面を形成することができる。これにより、送電装置２０が通行の妨げとなることを防止できる。また、シート状の送電コイル部材２１は、持ち運び、位置変更が容易であるため、常設する必要がなく、例えば充電終了後に収納することもできる。送電コイル部材２１は、可撓性を有するため、例えば筒状に丸めて、或いは折り畳んで収納することも可能である。   As described above, according to the contactless charging system 10 including the power transmission device 20, a substantially flat road surface without a large step can be formed by forming the power transmission coil 22 and the power supply line 25 in a sheet shape or a belt shape. . Thereby, it can prevent that the power transmission apparatus 20 obstructs passage. Further, since the sheet-like power transmission coil member 21 is easy to carry and change in position, it is not necessary to install it permanently, and for example, it can be accommodated after the end of charging. Since the power transmission coil member 21 has flexibility, the power transmission coil member 21 can be stored, for example, by being rolled into a cylindrical shape or folded.

図４は、第２の実施形態である非接触充電システム１０ｘの概略構成を示す。
以下では、上記実施形態との相違点について詳説し、重複する説明は省略する。 FIG. 4 shows a schematic configuration of a non-contact charging system 10x according to the second embodiment.
Hereinafter, differences from the above-described embodiment will be described in detail, and redundant description will be omitted.

図４に示すように、非接触充電システム１０ｘは、ＡＧＶ４０の走行路に沿って配置された複数の送電コイル部材２１を含む送電装置２０ｘと、ＡＧＶ４０に搭載される受電装置３０ｘと、各装置を制御してＡＧＶ４０の非接触充電を実行する制御装置５０とを備える。ＡＧＶ４０は走行路に沿って自動走行し、非接触充電システム１０ｘは、ＡＧＶ４０の走行中における非接触充電を可能とする。本実施形態では、ＡＧＶ４０のかかる自動走行も制御装置５０の機能により実行される。   As shown in FIG. 4, the non-contact charging system 10 x includes a power transmission device 20 x including a plurality of power transmission coil members 21 arranged along the traveling path of the AGV 40, a power reception device 30 x mounted on the AGV 40, and each device. And a control device 50 that controls and performs contactless charging of the AGV 40. The AGV 40 automatically travels along the traveling path, and the contactless charging system 10x enables contactless charging while the AGV 40 is traveling. In the present embodiment, such automatic traveling by the AGV 40 is also executed by the function of the control device 50.

複数の送電コイル部材２１は、給電線２５により互いに接続されている。なお、各送電コイル２２への給電方法は、特に限定されないが、各送電コイル２２への給電をＯＮ／ＯＦＦするスイッチ等を設け、ＡＧＶ４０の走行に合わせて当該ＯＮ／ＯＦＦを実行できることが好ましい。   The plurality of power transmission coil members 21 are connected to each other by a feeder line 25. In addition, although the power feeding method to each power transmission coil 22 is not particularly limited, it is preferable that a switch or the like for turning on / off power feeding to each power transmission coil 22 is provided so that the ON / OFF can be executed in accordance with the traveling of the AGV 40.

送電コイル部材２１には、ＡＧＶ４０の自動走行に使用するトレースセンサを埋め込むこともできる。トレースセンサとして磁気センサを用いる場合は、例えば送電コイル部材２１に磁石や磁気テープを埋め込み、ＡＧＶ４０に当該磁石等の磁力を検出する検出器を搭載することができる。その他、ＡＧＶ４０の走行路に走行ラインを描いて、これを赤外線センサ等で検出する方法も挙げられるが、本実施形態では後述の方法によりＡＧＶ４０の走行制御を実行するものとする。   A trace sensor used for automatic traveling of the AGV 40 can be embedded in the power transmission coil member 21. When a magnetic sensor is used as the trace sensor, for example, a magnet or a magnetic tape is embedded in the power transmission coil member 21, and a detector for detecting the magnetic force of the magnet or the like can be mounted on the AGV 40. In addition, there is a method of drawing a travel line on the travel path of the AGV 40 and detecting it with an infrared sensor or the like. In this embodiment, the travel control of the AGV 40 is executed by a method described later.

非接触充電システム１０ｘは、上記のように、制御装置５０を備える。制御装置５０は、送電装置２０ｘ及び受電装置３０ｘを制御してＡＧＶ４０の非接触充電を実行する充電制御手段５１を有する。本実施形態では、制御装置５０がＡＧＶ４０の自動走行を制御する走行制御手段５２をさらに有する。   The non-contact charging system 10x includes the control device 50 as described above. The control device 50 includes charge control means 51 that controls the power transmission device 20x and the power reception device 30x to perform contactless charging of the AGV 40. In the present embodiment, the control device 50 further includes travel control means 52 that controls the automatic travel of the AGV 40.

充電制御手段５１は、例えばＡＧＶ４０の走行に合わせて各送電コイル部材２１の送電コイル２２への給電をＯＮ／ＯＦＦする。即ち、送電コイル部材２１が配置された走行路に沿って自動走行するＡＧＶ４０の直下に位置する送電コイル２２に対して選択的に給電することが好ましい。そして、送電側と受電側とで共振周波数を同一の周波数とし、送電側の共振回路と受電側の共振回路を該周波数で結合共振させて送電装置２０ｘからＡＧＶ４０に電力を供給する。   The charge control means 51 turns ON / OFF the power supply to the power transmission coil 22 of each power transmission coil member 21 in accordance with the traveling of the AGV 40, for example. That is, it is preferable to selectively supply power to the power transmission coil 22 positioned immediately below the AGV 40 that automatically travels along the travel path on which the power transmission coil member 21 is disposed. The power transmission side and the power reception side have the same resonance frequency, and the power transmission side resonance circuit and the power reception side resonance circuit are coupled and resonated at the frequency to supply power to the AGV 40 from the power transmission device 20x.

走行制御手段５２は、ＡＧＶ４０の走行制御システムの一部を構成する。走行制御システムは、送電コイル２２の磁界を検出する磁気センサ４１を有する。磁気センサ４１は、ＡＧＶ４０に搭載されている。走行制御手段５２は、磁気センサ４１により検出された送電コイル２２の磁界に基づきＡＧＶ４０を走行路に沿って自動走行させる機能を有する。これにより、磁石や磁気テープ等をシートに埋め込むことなく、送電コイル２２の磁界を利用してＡＧＶ４０の走行路に沿った自動走行を可能とする。   The traveling control means 52 constitutes a part of the traveling control system of the AGV 40. The travel control system includes a magnetic sensor 41 that detects the magnetic field of the power transmission coil 22. The magnetic sensor 41 is mounted on the AGV 40. The traveling control means 52 has a function of automatically traveling the AGV 40 along the traveling path based on the magnetic field of the power transmission coil 22 detected by the magnetic sensor 41. This enables automatic traveling along the traveling path of the AGV 40 using the magnetic field of the power transmission coil 22 without embedding a magnet, magnetic tape, or the like in the sheet.

図５は、第３の実施形態である送電コイル部材２１ｙを示す。
図５に示すように、１枚の送電コイル部材２１ｙに、複数の送電コイル２２ｙを設けてもよい。この場合も受電コイル３１は１つであることが好ましく、即ち１つの受電コイル３１に対して複数の送電コイル２２ｙを設けることができる。図５に示す例では、角型コイルである送電コイル２２ｙを９個設けた形態を示すが、コイル形状や個数はこれに限定されない。当該構成によれば、例えば電動車両１１の停車位置を厳密に調整しなくても、受電コイル３１の直下にいずれかの送電コイル２２ｙが位置して、効率の良い電力伝送を行うことが可能となる。 FIG. 5 shows a power transmission coil member 21y according to the third embodiment.
As shown in FIG. 5, a plurality of power transmission coils 22y may be provided on one power transmission coil member 21y. Also in this case, it is preferable that the number of power receiving coils 31 is one, that is, a plurality of power transmitting coils 22 y can be provided for one power receiving coil 31. In the example shown in FIG. 5, although the form which provided nine power transmission coils 22y which are square coils is shown, a coil shape and a number are not limited to this. According to this configuration, for example, even if the stop position of the electric vehicle 11 is not strictly adjusted, any one of the power transmission coils 22y is positioned immediately below the power reception coil 31, and efficient power transmission can be performed. Become.

１０，１０ｘ 非接触充電システム、１１ 電動車両、１２ バッテリ、２０，２０ｘ 送電装置、２１，２１ｙ 送電コイル部材、２２，２２ｙ 送電コイル、２３ シート材、２４ 電源回路、２５ 給電線、３０，３０ｘ 受電装置、３１ 受電コイル、３２ 充電回路、４０ ＡＧＶ、４１ 磁気センサ、５０ 制御装置、５１ 充電制御手段、５２ 走行制御手段、１００ 送電ボックス、１０１ 送電コイル、１０２ 路面   10, 10x contactless charging system, 11 electric vehicle, 12 battery, 20, 20x power transmission device, 21, 21y power transmission coil member, 22, 22y power transmission coil, 23 sheet material, 24 power supply circuit, 25 power supply line, 30, 30x power reception Device, 31 power receiving coil, 32 charging circuit, 40 AGV, 41 magnetic sensor, 50 control device, 51 charging control means, 52 travel control means, 100 power transmission box, 101 power transmission coil, 102 road surface

Claims (3)

送電コイル及び該コイルを被覆する可撓性シートを含み、受電コイルを搭載した電動車両の走行路に配置される送電コイル部材と、
前記送電コイルに電力を供給するための給電線と、
を備えた、前記電動車両の非接触充電システムに適用される送電装置であって、
前記送電コイル部材は、可撓性のあるシート形状を有することを特徴とする非接触充電用送電装置。 A power transmission coil member that includes a power transmission coil and a flexible sheet that covers the coil, and is disposed on a traveling path of an electric vehicle equipped with the power reception coil;
A feed line for supplying power to the power transmission coil;
A power transmission device applied to the non-contact charging system for the electric vehicle,
The power transmission coil member has a flexible sheet shape, and is a non-contact charging power transmission device. 請求項１に記載の非接触充電用送電装置において、
前記給電線は、可撓性のある帯状に形成されていることを特徴とする非接触充電用送電装置。 The power transmission device for contactless charging according to claim 1,
The non-contact charging power transmission device, wherein the power supply line is formed in a flexible belt shape. 請求項１又は２に記載の送電装置において、
１枚の前記送電コイル部材には、複数の前記送電コイルが設けられていることを特徴とする非接触充電用送電装置。 In the power transmission device according to claim 1 or 2,
A single power transmission coil member is provided with a plurality of the power transmission coils.
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