JPH09312942A - Noncontact collection method and its device - Google Patents
Noncontact collection method and its deviceInfo
- Publication number
- JPH09312942A JPH09312942A JP8125362A JP12536296A JPH09312942A JP H09312942 A JPH09312942 A JP H09312942A JP 8125362 A JP8125362 A JP 8125362A JP 12536296 A JP12536296 A JP 12536296A JP H09312942 A JPH09312942 A JP H09312942A
- Authority
- JP
- Japan
- Prior art keywords
- current
- moving body
- fixed electrode
- current collecting
- capacitance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は移動体への非接触給
電方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contactless power feeding system for a mobile body.
【０００２】[0002]
【従来の技術】従来技術は、特開平５−２０７６０３号
公報、特開平５−２０７６０４号公報、特開平５−２０
７６０５号公報、特開平５−２０７６０６号公報のよう
に、１次側電流線を設け、これに高周波の正弦波電流を
流して、電流線を中心とする交流磁界を生じせしめ、そ
の交流磁界に直交するように巻線を設けたピックアップ
コイルを移動体に設け、電流をピックアップコイルに誘
起し電磁結合により電力を伝える方法が考えられてい
る。このようにして、１次側電流線とピックアップコイ
ルを所定の間隔に保って、移動体を駆動することによ
り、長い距離間で非接触で給電し移動するシステムとし
ている。2. Description of the Related Art Prior arts are disclosed in JP-A-5-207603, JP-A-5-207604, and JP-A-5-20.
As disclosed in Japanese Patent No. 7605 and Japanese Patent Laid-Open No. 5-207606, a primary side current line is provided, and a high frequency sine wave current is passed through the primary side current line to generate an AC magnetic field centered on the current line, and the AC magnetic field is generated. A method has been considered in which a pickup coil having windings provided so as to be orthogonal to each other is provided in a moving body, a current is induced in the pickup coil, and electric power is transmitted by electromagnetic coupling. In this way, the primary side current line and the pickup coil are kept at a predetermined interval and the moving body is driven, so that the system is configured to perform non-contact power feeding and move over a long distance.
【０００３】[0003]
【発明が解決しようとする課題】従来の電磁誘導による
非接触給電するシステムでは、長い移動距離に線状に設
けた１次電流線に流した電流で生ずる磁界の中で、移動
体に設けたピックアップコイルの付近の磁界のみを利用
して電力を誘起するため、全体の変換効率の改善が望ま
れる。In the conventional non-contact power feeding system using electromagnetic induction, a magnetic field generated by a current flowing through a primary current line linearly arranged at a long moving distance is installed in a moving body. Since the electric power is induced only by using the magnetic field near the pickup coil, it is desired to improve the overall conversion efficiency.
【０００４】また、従来の１次電流線と、該ピックアッ
プコイルは常に所定の間隔を保つ必要があり、このため
移動体の可動も、これによって制限される。この余裕も
拡大されるシステムが望ましい。Further, the conventional primary current line and the pickup coil must always be kept at a predetermined distance, so that the movement of the moving body is also limited by this. A system that expands this margin is desirable.
【０００５】さらに、従来の１次電流線で発生する交流
磁界を用いるため、１次の大電流で発生する電磁ノイズ
の発生を考慮すると、高周波領域は使用に制限があり、
またこの分、電力の検出系や、交流変換部が比較的大形
化することも改善が望まれる。Further, since the AC magnetic field generated by the conventional primary current line is used, the use of the high frequency region is limited in consideration of the generation of electromagnetic noise generated by the primary large current.
Further, it is also desired to improve the size of the power detection system and the AC conversion unit to be relatively large.
【０００６】本発明は、大きな電力を得る非接触式集電
方法を提供することにある。The present invention is to provide a non-contact type current collecting method for obtaining a large amount of electric power.
【０００７】[0007]
【課題を解決するための手段】本発明は、移動体に設置
した集電電極と移動路に設置した固定電極との間の静電
容量により集電すること、を特徴とする。The present invention is characterized in that current is collected by electrostatic capacitance between a current collecting electrode installed on a moving body and a fixed electrode installed on a moving path.
【０００８】静電結合容量方式であるので、大きな電力
を集電できるものである。Since the capacitive coupling type is used, a large amount of electric power can be collected.
【０００９】また、静電容量インピーダンスにより低下
を防ぐため、電源を高周波とする。Further, in order to prevent the decrease due to the capacitance impedance, the power source is set to a high frequency.
【００１０】また、該静電容量インピーダンスに誘導性
負荷を接続し、両インピーダンスを共振条件とすること
により、誘導性負荷両端に高い出力電圧を得るようにす
る。Further, by connecting an inductive load to the capacitance impedance and setting both impedances as resonance conditions, a high output voltage is obtained across the inductive load.
【００１１】また、上記の代案として、該静電容量イン
ピーダンスに誘導性負荷を直列に接続し、両インピーダ
ンスを打ち消すことにより、誘導性負荷両端に高い出力
電圧を得るようにする。As an alternative to the above, an inductive load is connected in series to the capacitance impedance and both impedances are canceled to obtain a high output voltage across the inductive load.
【００１２】[0012]
【発明の実施の形態】本発明の基本実施例を図１に示
す。高周波電源１に接続した固定電極板２、３を設け、
これに沿って移動させる移動体４に、固定電極板２およ
び３と所定の間隔を保って、集電電極５と６を設ける。
このようにして２と５の間および３と６の間で静電容量
８と９のインピーダンスを通し電気的に結合する。集電
電極５と６間に、静電容量８と９の容量に共振する誘導
負荷７を接続し、誘導負荷７と静電容量８と９の直列共
振で低インピーダンス化し、電流を流れ易くし、より多
くの電力を給電する方式とする。このようにして集電電
極５と６間に集電した電力を、移動体４に内蔵した電源
回路および制御回路部１０へ供給する。尚、高周波電源
１に接続する固定電極板２，３の端末は開路している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A basic embodiment of the present invention is shown in FIG. The fixed electrode plates 2 and 3 connected to the high frequency power source 1 are provided,
The moving body 4 to be moved along this is provided with current collecting electrodes 5 and 6 at a predetermined distance from the fixed electrode plates 2 and 3.
In this way, the impedances of the capacitances 8 and 9 are electrically connected between 2 and 5 and between 3 and 6. An inductive load 7 that resonates with the capacitances of the electrostatic capacitances 8 and 9 is connected between the collector electrodes 5 and 6, and the impedance is reduced by series resonance of the inductive load 7 and the electrostatic capacitances 8 and 9 to facilitate the flow of current. , A method of supplying more electric power. The electric power thus collected between the collecting electrodes 5 and 6 is supplied to the power supply circuit and the control circuit unit 10 built in the moving body 4. The terminals of the fixed electrode plates 2 and 3 connected to the high frequency power source 1 are open.
【００１３】つまり、高周波電源１から供給される電流
１１は、静電容量８を経て電流１２となり、移動体４へ
取り込み、その帰路は静電容量９を経て電流１３とな
り、高周波電源１への戻り電流１４となる。このように
して、高周波電源１からの共給電流を移動体４に効率よ
く取り込むシステムとできる。That is, the current 11 supplied from the high frequency power source 1 becomes the current 12 via the electrostatic capacity 8 and is taken into the moving body 4, and the return path becomes the current 13 via the electrostatic capacity 9 to the high frequency power source 1. The return current becomes 14. In this way, a system can be obtained in which the co-current supplied from the high frequency power supply 1 is efficiently taken into the moving body 4.
【００１４】図２に移動体方向より見た構成を示す。制
御回路１０に取り込んだ電力は、移動体４を移動するた
めの駆動モーター２０の電源または移動体４の中の機構
部２１の駆動電力および制御回路部１０の操作電源に用
いる。FIG. 2 shows the configuration as seen from the direction of the moving body. The electric power taken into the control circuit 10 is used as the power supply of the drive motor 20 for moving the moving body 4, the driving power of the mechanism portion 21 in the moving body 4, and the operating power supply of the control circuit portion 10.
【００１５】この図２に示すよう固定電極板２，３に対
し、集電電極５，６の寸法を大きくしておくと、この
分、移動体４の進行方向に直角成分の可動余裕が確保で
きる。As shown in FIG. 2, when the size of the collecting electrodes 5, 6 is made larger than that of the fixed electrode plates 2, 3, a moving margin of a component perpendicular to the traveling direction of the moving body 4 is secured accordingly. it can.
【００１６】この機構を図３に示す。図３（ａ）におい
て、静電容量８，９のインピーダンスをＣ1とし、誘導
負荷７のインピーダンスをＬ1とし、この高周波回路部
から制御回路１０を見たインピーダンス２２をＺ1とす
ると、この等価回路は、図３（ｂ）のようになる。ここ
で、Ｃ1−Ｌ1−Ｃ1間を共振条件とすることにより、
Ｌ1、Ｃ1に大きい共振電流ＩＲ1が流れ、Ｌ1両端に高い
電圧を得ることができる。この値を、インピダンス２２
に取り込み、制御回路１０にて内部へ給電する。This mechanism is shown in FIG. In FIG. 3A, assuming that the impedances of the electrostatic capacitances 8 and 9 are C 1 , the impedance of the inductive load 7 is L 1, and the impedance 22 of the control circuit 10 seen from the high frequency circuit section is Z 1. The equivalent circuit is as shown in FIG. Here, by setting the resonance condition between C 1 -L 1 -C 1 ,
A large resonance current IR 1 flows through L 1 and C 1 , and a high voltage can be obtained across L 1 . This value is the impedance 22
And the power is supplied to the inside by the control circuit 10.
【００１７】従来の電磁結合方式では、実際に移動体に
取り込む電流の５０倍程度の無効電流を一次側電流線に
流し、移動体の可動範囲全体を励磁する必要があった。In the conventional electromagnetic coupling system, it is necessary to flow a reactive current of about 50 times the current actually taken into the moving body through the primary side current line to excite the entire movable range of the moving body.
【００１８】本発明によれば、移動体４の集電電極５，
６に集中的に電流を流す方式であり、そのため、給電電
流と移動体取り込み電流は、ほぼ１：１であり、移動体
への取り込み電流を定所量にて比較すると、電源よりの
給電電流は、１／５０程度の小さい値で実理できる。こ
の分、各部の電流容量が大幅に低減され、小形化および
低損失のシステムとできる。また、構成部品の電流定格
を大幅に小さくできるので、構成部品の小形化や、発熱
への放熱処理等が省略化でき、経済的システムとでき
る。According to the present invention, the collector electrodes 5 of the moving body 4 are
This is a method in which an electric current is concentratedly flown in 6, and therefore, the feeding current and the moving body uptake current are almost 1: 1. Comparing the uptake current into the moving body with a fixed amount, the feeding current from the power source is Can be realized with a small value of about 1/50. As a result, the current capacity of each part is significantly reduced, and the system can be made compact and low loss. In addition, since the current rating of the component can be significantly reduced, the component can be downsized and the heat radiation process for heat generation can be omitted, resulting in an economical system.
【００１９】図４（ａ）に同様に示す構成では、図３の
誘導負荷７を集電電極５，６間接続したが、誘導負荷７
に相当する誘導インピーダンス２３を直列に接続し、等
価回路を図４（ｂ）のようにし、Ｃ2−Ｌ2−Ｃ2を同様
に共振条件とするこにより、それらのインピーダンスを
打消し、高周波電源１の出力端電圧を、そのままインピ
ーダンス２２に取り込み、制御回路１０に給電する。こ
の方式では、インピーダンス２２に高周波電源１の出力
電圧をそのまま得ることができる。In the structure shown in FIG. 4A, the inductive load 7 of FIG. 3 is connected between the collector electrodes 5 and 6, but
4 is connected in series, the equivalent circuit is set as shown in FIG. 4B, and C 2 -L 2 -C 2 are similarly set as resonance conditions to cancel out those impedances and The output end voltage of the power supply 1 is directly taken into the impedance 22 and supplied to the control circuit 10. In this method, the output voltage of the high frequency power supply 1 can be obtained as it is in the impedance 22.
【００２０】このよう移動体４に取り込む電流に相等す
る電流のみを高周波電源１から固定電極板２，３に流す
ことにより実現できる。このため、高周波電源１や固定
電極板２，３も必要な容量で小形に構成できる。また、
この電流による電磁ノイズの放射も低減することができ
る。This can be realized by causing the high-frequency power supply 1 to flow through the fixed electrode plates 2 and 3 only the current that is equivalent to the current taken into the moving body 4. For this reason, the high frequency power supply 1 and the fixed electrode plates 2 and 3 can also be constructed in a small size with a required capacity. Also,
Radiation of electromagnetic noise due to this current can also be reduced.
【００２１】図５は、図３（ａ）を基に、給電線と、移
動体と固定電極間の静電結合を介して、親局、子局間の
信号伝送機能を付加したものである。例えば、通常の信
号媒体である高周波信号を用いるケースで以下述べる
と、電源側に信号の漏れを防ぐ、信号ブロックインピー
ダンス２５および、負荷側に同様の信号ブロックインピ
２４を設け、２５と２４の間で、任意の位置で信号のや
りとりをする親局、子局を設ける。図５では、例えば高
周波電源１側の固定端に親局２８を設け、４に子局２７
を設け、２８と２７間で制御信号や状態表示信号のやり
とりをする。さらに２８とは別に、固定端に親局または
子局を設け、制御や表示信号のやりとりをすることもで
き、広い範囲の移動体可能領域で、効果的な信号システ
ムを並設することができる。FIG. 5 is based on FIG. 3A and is provided with a signal transmission function between a master station and a slave station via a power feed line and electrostatic coupling between a moving body and a fixed electrode. . For example, in the case of using a high-frequency signal that is a normal signal medium, the following description will be made. A signal block impedance 25 that prevents signal leakage on the power supply side and a similar signal block impedance 24 on the load side are provided. Then, a master station and a slave station for exchanging signals at arbitrary positions are provided. In FIG. 5, for example, a master station 28 is provided at a fixed end on the high frequency power source 1 side, and a slave station 27 is provided at 4.
Is provided, and control signals and status display signals are exchanged between 28 and 27. Further, apart from 28, a master station or a slave station can be provided at a fixed end to exchange control and display signals, and an effective signal system can be installed in parallel in a wide movable area. .
【００２２】[0022]
【発明の効果】本発明によれば、大きな電力を得ること
ができるものである。According to the present invention, a large amount of electric power can be obtained.
【図１】本発明の一実施例の全体の構成図である。FIG. 1 is an overall configuration diagram of an embodiment of the present invention.
【図２】図１の移動体をその進行方向から見た構成図で
ある。FIG. 2 is a configuration diagram of the moving body of FIG. 1 viewed from its traveling direction.
【図３】図１の移動体の電力の取込み回路図と等価回路
図である。3A and 3B are an equivalent circuit diagram and a power capture circuit diagram of the mobile unit of FIG.
【図４】本発明の他の実施例の移動体の電力の取込み回
路図と等価回路図である。4A and 4B are an equivalent circuit diagram and an intake circuit diagram of electric power of a moving body according to another embodiment of the present invention.
【図５】本発明の他の実施例の全体の構成図である。FIG. 5 is an overall configuration diagram of another embodiment of the present invention.
１…高周波電源、２，３…固定電極板、５，６…集電電
極、４…移動体、８，９…静電容量、７…誘導負荷、２
３…誘導インピーダンス、２４，２５…信号ブロックイ
ンピーダンス、２６…伝送信号、２７，２８，２９…
親，子局。1 ... High frequency power source, 2, 3 ... Fixed electrode plate, 5, 6 ... Current collecting electrode, 4 ... Moving body, 8, 9 ... Capacitance, 7 ... Inductive load, 2
3 ... Induction impedance, 24, 25 ... Signal block impedance, 26 ... Transmission signal, 27, 28, 29 ...
Parent and child stations.
Claims (7)
した固定電極との間の静電容量により集電すること、を
特徴とする非接触式集電方法。1. A non-contact type current collecting method, characterized in that current is collected by a capacitance between a current collecting electrode installed on a moving body and a fixed electrode installed on a moving path.
制御および状態表示の信号をやりとりすること、を特徴
とする非接触式集電方法。2. The electrostatic capacity according to claim 1,
A non-contact current collecting method, characterized by exchanging control and status display signals.
した固定電極との間の静電容量により接触する移動体の
非接触式集電装置。3. A non-contact type current collector for a moving body, which comes into contact with each other by a capacitance between a collecting electrode set on the moving body and a fixed electrode set on a traveling path.
対の集電電極間に誘導性負荷を設けていること、を特徴
とする非接触式集電装置。4. The non-contact type current collecting device according to claim 3, wherein an inductive load is provided between the pair of current collecting electrodes provided on the moving body.
電電極に直列に誘導性負荷を設けていること、を特徴と
する非接触式集電装置。5. The non-contact type current collecting device according to claim 3, wherein an inductive load is provided in series with one current collecting electrode of the moving body.
して直角方向の寸法に於いて、固定電極板寸法より集電
電極の寸法を大きくしたこと、を特徴とする非接触式集
電装置。6. A non-contact current collector according to claim 3, wherein the size of the current collecting electrode is larger than the size of the fixed electrode plate in the direction perpendicular to the moving direction of the moving body. apparatus.
沿って設置された固定電極の端部を開路したこと、を特
徴とする非接触式集電装置の給電線。7. A power supply line for a non-contact type current collector, which is connected to a high frequency power source and has an open end of a fixed electrode installed along a moving path of a moving body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8125362A JPH09312942A (en) | 1996-05-21 | 1996-05-21 | Noncontact collection method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8125362A JPH09312942A (en) | 1996-05-21 | 1996-05-21 | Noncontact collection method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09312942A true JPH09312942A (en) | 1997-12-02 |
Family
ID=14908265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8125362A Pending JPH09312942A (en) | 1996-05-21 | 1996-05-21 | Noncontact collection method and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09312942A (en) |
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