JP6873212B2 - Board production line - Google Patents

Board production line Download PDF

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JP6873212B2
JP6873212B2 JP2019202177A JP2019202177A JP6873212B2 JP 6873212 B2 JP6873212 B2 JP 6873212B2 JP 2019202177 A JP2019202177 A JP 2019202177A JP 2019202177 A JP2019202177 A JP 2019202177A JP 6873212 B2 JP6873212 B2 JP 6873212B2
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power receiving
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substrate
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壮志 野村
壮志 野村
慎二 瀧川
慎二 瀧川
将志 沖
将志 沖
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Description

本明細書は、複数の基板生産機で構成される基板生産ラインに関し、より詳細には、非接触給電を用いる基板生産ラインに関する。 The present specification relates to a substrate production line composed of a plurality of substrate production machines, and more particularly to a substrate production line using non-contact power feeding.

多数の部品が実装された基板を生産する基板生産機として、はんだ印刷機、部品実装機、リフロー機、基板検査機などがある。これらの設備を連結して基板生産ラインを構成することが一般的になっている。さらに、モジュール化された同じ大きさの基板生産機を列設して基板生産ラインを構成する場合も多い。モジュール化された基板生産機を用いることにより、ラインの組み替え時やラインを長大化する増設時の段取り替え作業が容易になり、フレキシブルな基板生産ラインが実現される。 As a board production machine that produces a board on which a large number of parts are mounted, there are a solder printing machine, a component mounting machine, a reflow machine, a board inspection machine, and the like. It has become common to connect these facilities to form a substrate production line. Further, in many cases, modularized board production machines of the same size are arranged in a row to form a board production line. By using a modularized board production machine, the setup change work at the time of line rearrangement or expansion at the time of lengthening the line becomes easy, and a flexible board production line is realized.

近年、基板生産ラインの各基板生産機で使用する機材や部材を、基板生産ラインに沿って移動する移動体に搬送させ、省力化および自動化を推進することが検討されている。さらに、移動体への給電手段として、非接触給電装置が考えられている。なお、非接触給電装置の用途は、基板生産ラインに限定されず、他の製品を生産する組立ラインや加工ライン、電動車両の走行中給電など幅広い分野にわたっている。この種の非接触給電装置に関する技術例が特許文献１、２に開示されている。 In recent years, it has been studied to promote labor saving and automation by transporting equipment and members used in each substrate production machine of a substrate production line to a moving body moving along the substrate production line. Further, a non-contact power feeding device is considered as a power feeding means for the moving body. The application of the non-contact power feeding device is not limited to the substrate production line, but extends to a wide range of fields such as an assembly line and a processing line for producing other products, and a running power supply for an electric vehicle. Patent Documents 1 and 2 disclose technical examples of this type of non-contact power feeding device.

特許文献１の移動給電式の非接触給電装置は、定置された送電コイルから移動する受電コイルに非接触で電力を供給する装置である。送電コイルは、移動方向に沿い長いループ状をなすとともに、途中で交叉されて磁界の向きが交互に反転する複数のユニットが形成されており、受電コイルは、複数個が間隔を存して配置されている。また、２個の受電コイルの移動方向に沿ったサイズＣおよび相互間の間隔ｄは、ｄ≧Ｃ／２ の不等式を満足することが好ましい。さらに、送電コイルのユニットの移動方向のサイズＬは、Ｌ≧Ｃ＋ｄ の不等式を満足することが好ましい。これにより、受電電力が瞬間的、周期的にゼロとなる脈動発生は確実に防止される、とされている。 The mobile power feeding type non-contact power feeding device of Patent Document 1 is a device that non-contactly supplies electric power to a power receiving coil moving from a stationary power transmitting coil. The power transmission coil forms a long loop along the moving direction, and a plurality of units are formed which are crossed in the middle and the directions of the magnetic fields are alternately reversed. Has been done. Further, it is preferable that the size C along the moving direction of the two power receiving coils and the distance d between them satisfy the inequality of d ≧ C / 2. Further, the size L of the unit of the power transmission coil in the moving direction preferably satisfies the inequality of L ≧ C + d. As a result, it is said that the occurrence of pulsation in which the received power becomes zero instantaneously and periodically is surely prevented.

また、特許文献２の走行中非接触給電システムは、地上側の複数の一次側給電トランスから、移動体の二次側給電トランスに非接触で交流電力を給電するシステムであり、一次側給電トランスおよび二次側給電トランスはそれぞれ両側巻コイルからなっている。そして、一次側給電トランスの磁極の寸法をＤとするとき、隣り合う一次側給電トランスの中心間距離が３Ｄを越えないことを特徴としている。さらに、複数の一次側給電トランスが高周波電源に直列に接続される態様が開示されている。これによれば、一次側給電トランスを飛び石状に配置しても、二次側給電トランスへの給電の途切れが発生しない、とされている。 Further, the traveling non-contact power supply system of Patent Document 2 is a system that supplies AC power from a plurality of primary side power supply transformers on the ground side to a secondary side power supply transformer of a moving body in a non-contact manner, and is a primary side power supply transformer. And the secondary side feeding transformer consists of a double-sided winding coil, respectively. When the dimension of the magnetic pole of the primary side feeding transformer is D, the distance between the centers of the adjacent primary side feeding transformers does not exceed 3D. Further, a mode in which a plurality of primary side feeding transformers are connected in series with a high frequency power supply is disclosed. According to this, even if the primary side power supply transformer is arranged in a flying stone shape, the power supply to the secondary side power supply transformer is not interrupted.

特開２０１４−５３９８４号公報Japanese Unexamined Patent Publication No. 2014-53884 特開２０１４−１４７１６０号公報Japanese Unexamined Patent Publication No. 2014-147160

ところで、特許文献１の技術では、２個の受電コイルがともに送電コイルの２つのユニットの境界にまたがる、いわゆる「またぎ受電状態」の時間帯が発生し得る。この時間帯には、受電コイルに鎖交する２つのユニットの磁界が打ち消し合うので、受電電力はゼロにならずとも大幅に減少し、大きな脈動が生じ得る。受電電力が大きく脈動すると、移動体側の電気負荷を駆動できなくなるおそれが生じる。また、長いループ状の送電コイルの全体を常に充電することになるため、電源装置は大型化し、かつ漏れ磁束による損失の増加は避けられない。 By the way, in the technique of Patent Document 1, a so-called "straddling power receiving state" time zone in which two power receiving coils both straddle the boundary between two units of the power transmission coil may occur. During this time period, the magnetic fields of the two units interlinking the power receiving coil cancel each other out, so that the received power is significantly reduced even if it does not become zero, and a large pulsation can occur. If the received power pulsates greatly, there is a risk that the electric load on the moving body side cannot be driven. Further, since the entire long loop-shaped power transmission coil is constantly charged, the power supply device becomes large and the loss due to the leakage flux is inevitably increased.

上記した受電電力の低下、ならびに電源装置の大型化および損失増加の問題点は、特許文献２の技術においても同様に発生する。すなわち、隣り合う一次側給電トランスの間には２Ｄの離間距離が存在し、この離間距離の間に二次側給電トランスが移動したとき、受電電力は低下して脈動する。脈動の影響を低減するため、特許文献２の実施形態には蓄電素子（バッテリ）および充電回路を用いる旨が開示されている。これは、移動体の重量の増加を意味し、移動に要する動力が増加してしまう。また、複数の一次側給電トランスが高周波電源に直列に接続されると、高周波電源は大型化し、その損失は増加する。 The above-mentioned problems of a decrease in the received power, an increase in the size of the power supply device, and an increase in the loss also occur in the technique of Patent Document 2. That is, there is a 2D separation distance between adjacent primary side power supply transformers, and when the secondary side power supply transformer moves during this separation distance, the received power decreases and pulsates. In order to reduce the influence of pulsation, the embodiment of Patent Document 2 discloses that a power storage element (battery) and a charging circuit are used. This means an increase in the weight of the moving body, which increases the power required for the movement. Further, when a plurality of primary side feeding transformers are connected in series with the high frequency power supply, the high frequency power supply becomes large and its loss increases.

本明細書は、上記背景技術の問題点に鑑みてなされたものであり、移動体により機材や部材を搬送して省力化を推進するとともに、移動体に対して常に安定した非接触給電を行える基板生産ラインを提供することを解決すべき課題とする。 This specification has been made in view of the problems of the above-mentioned background technology, and can promote labor saving by transporting equipment and members by a moving body, and can always provide stable non-contact power supply to the moving body. Providing a board production line is an issue to be solved.

本明細書は、列設された複数の基板生産機と、複数の前記基板生産機の前方に配設されて列設方向に延在し、保管庫に至るガイドレールと、前記ガイドレールに沿って前記列設方向に移動し、前記基板生産機で使用する機材および部材の少なくとも一方を前記保管庫と前記基板生産機の間で搬送する移動体と、複数の前記基板生産機の各々に設けられた給電素子と、前記移動体の前記給電素子に対向する側面に設けられ、常時、少なくとも１個の前記給電素子の少なくとも一部に対向して、非接触給電により電力を受け取る受電素子と、前記受電素子が受け取った電力で前記移動体を駆動する移動用駆動源と、を備える基板生産ラインを開示する。
また、本明細書は、列設され、かつ、モジュール化された複数の基板生産機と、複数の前記基板生産機の前方に配設されて列設方向に延在し、保管庫に至るガイドレールと、前記ガイドレールに沿って前記列設方向に移動し、前記基板生産機で使用する機材および部材の少なくとも一方を前記保管庫と前記基板生産機の間で搬送する移動体と、複数の前記基板生産機の各々に設けられて前記列設方向に並び、かつ、モジュール化された給電素子と、前記移動体の前記給電素子に対向する側面に設けられ、非接触給電により電力を受け取る受電素子と、を備え、複数の前記基板生産機は、列設位置の順序変更、他の前記基板生産機との入れ替え、および、他の前記基板生産機の増設が可能とされている、基板生産ラインを開示する。 Herein, extend in the column arrangement direction are disposed and a plurality of board production machine which is arrayed in front of a plurality of the board production machine, and the guide rail extending in depot, along the guide rail A moving body that moves in the direction of the assembly line and conveys at least one of the equipment and members used in the substrate producing machine between the storage and the substrate producing machine, and each of the plurality of substrate producing machines. A power receiving element provided on the side surface of the moving body facing the power feeding element , always facing at least a part of at least one of the power feeding elements, and receiving power by non-contact power feeding. A substrate production line including a moving drive source for driving the moving body with the power received by the power receiving element is disclosed.
Further, herein, it is arrayed, and a plurality of board production machine is modular, being disposed in front of a plurality of the board production machine and extending in the column arrangement direction, leading to vault guide A plurality of rails, a moving body that moves in the assembly line along the guide rail, and transports at least one of the equipment and members used in the substrate producing machine between the storage and the substrate producing machine. A power receiving element provided in each of the substrate producing machines, arranged in the row direction, and provided on a side surface of the moving body facing the power feeding element and receiving power by non-contact power feeding. The board production machine is provided with an element, and the plurality of the board production machines can change the order of the row arrangement positions, replace the board production machines with other board production machines, and add other board production machines. Disclose the line.

開示した基板生産ラインにおいて、移動体により機材および部材の少なくとも一方を搬送して省力化を推進することができる。また、常時、少なくとも１個の給電素子の少なくとも一部に対向する受電素子を備える態様では、受け取る交流電力が極端に減少する脈動は発生せず、移動体に対して常に安定した非接触給電を行える。さらに、モジュール化された基板生産機および給電素子を備える態様では、基板生産ラインのライン構成の変更時やモジュール増設対応時に、非接触給電に関する段取り替え作業が簡素となる。 In the disclosed substrate production line, labor saving can be promoted by transporting at least one of the equipment and the member by the moving body. Further, in the embodiment in which the power receiving element facing at least a part of at least one power feeding element is provided at all times, the pulsation in which the received AC power is extremely reduced does not occur, and stable non-contact power feeding is always provided to the moving body. You can. Further, in the embodiment provided with the modularized board production machine and the power feeding element, the setup change work related to the non-contact power feeding is simplified when the line configuration of the board production line is changed or when the module is added.

第１実施形態の基板生産ラインおよび非接触給電装置の構成を模式的に説明する図である。It is a figure which schematically explains the structure of the substrate production line and the non-contact power feeding apparatus of 1st Embodiment. 非接触給電装置の移動体の側の詳細な回路構成を示した回路図である。It is a circuit diagram which showed the detailed circuit structure on the moving body side of a non-contact power feeding device. ２個の受電コイルのうち一方が給電コイルに正対し、他方がまたぎ受電状態となっている位置関係を例示した図である。It is a figure exemplifying the positional relationship that one of two power receiving coils faces a power feeding coil and the other is a straddling power receiving state. 第２実施形態の基板生産ラインおよび非接触給電装置の構成を模式的に説明する図である。It is a figure which schematically explains the structure of the substrate production line and the non-contact power feeding apparatus of 2nd Embodiment. 第３実施形態の基板生産ラインおよび非接触給電装置の構成を模式的に説明する図である。It is a figure which schematically explains the structure of the substrate production line and the non-contact power feeding apparatus of 3rd Embodiment.

（１．第１実施形態の基板生産ライン９および非接触給電装置１）
第１実施形態の基板生産ライン９について、図１〜図３を参考にして説明する。図１は、第１実施形態の基板生産ライン９および非接触給電装置１の構成を模式的に説明する図である。第１実施形態の基板生産ライン９には、非接触給電装置１が設けられている。図１に示されるように、基板生産ライン９は、３台の第１〜第３基板生産機９１、９２、９３が列設されて構成されている。図１の左右方向は、第１〜第３基板生産機９１、９２、９３の列設方向であり、後述する移動体９９の移動方向でもある (1. Substrate production line 9 and non-contact power feeding device 1 of the first embodiment)
The substrate production line 9 of the first embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a diagram schematically illustrating the configuration of the substrate production line 9 and the non-contact power feeding device 1 of the first embodiment. The substrate production line 9 of the first embodiment is provided with the non-contact power feeding device 1. As shown in FIG. 1, the substrate production line 9 is configured by arranging three first to third substrate production machines 91, 92, and 93 in a row. The left-right direction in FIG. 1 is the rowing direction of the first to third substrate production machines 91, 92, 93, and is also the moving direction of the moving body 99, which will be described later.

各基板生産機９１、９２、９３は、モジュール化されており、列設方向の幅寸法ＭＬが互いに等しい。第１〜第３基板生産機９１、９２、９３、は列設位置の順序変更、およびモジュール化された他の基板生産機との入れ替えが可能とされている。基板生産ライン９を構成する基板生産機の列設台数は４台以上でもよく、後から列設台数を増やすモジュール増設対応も可能になっている。第１〜第３基板生産機９１、９２、９３として、部品実装機を例示でき、これに限定されない。 The substrate production machines 91, 92, and 93 are modularized, and the width dimensions ML in the rowing direction are equal to each other. The first to third substrate production machines 91, 92, 93 can be rearranged in the order of the row arrangement positions and can be replaced with other modularized substrate production machines. The number of board production machines forming the board production line 9 may be four or more, and it is possible to add modules to increase the number of boards to be lined up later. Examples of the first to third substrate production machines 91, 92, and 93 include component mounting machines, and the present invention is not limited thereto.

第１〜第３基板生産機９１、９２、９３の前方には、列設方向に延在する図略のガイドレールが配設されている。移動体９９は、ガイドレールに沿って移動方向（第１〜第３基板生産機９１、９２、９３の列設方向）に移動する。移動体９９は、各基板生産機９１、９２、９３で使用する機材や部材を図略の保管庫から搬入し、使用後の機材や部材を保管庫に戻す役割を担っている。 In front of the first to third substrate production machines 91, 92, and 93, guide rails (not shown) extending in the rowing direction are arranged. The moving body 99 moves in the moving direction (rowing directions of the first to third substrate producing machines 91, 92, 93) along the guide rail. The moving body 99 has a role of carrying in the equipment and members used in the substrate production machines 91, 92, and 93 from the storage of the drawings, and returning the used equipment and parts to the storage.

非接触給電装置１は、第１〜第３基板生産機９１、９２、９３から移動体９９に非接触給電を行う装置である。非接触給電装置１は、第１〜第３基板生産機９１、９２、９３にそれぞれ設けられた交流電源２、給電コイル３１、および給電側コンデンサ３５、ならびに、移動体に９９に設けられた２個の受電コイル４１、２個の受電側コンデンサ４５、および受電回路５などで構成されている。 The non-contact power feeding device 1 is a device that performs non-contact power feeding from the first to third substrate production machines 91, 92, 93 to the mobile body 99. The non-contact power supply device 1 includes an AC power supply 2, a power supply coil 31, and a power supply side capacitor 35 provided in the first to third board production machines 91, 92, and 93, respectively, and 2 provided in the moving body 99. It is composed of a power receiving coil 41, two power receiving side capacitors 45, a power receiving circuit 5, and the like.

３台の基板生産機９１、９２、９３、およびモジュール化された他の基板生産機の非接触給電装置１に関する構成は同一であるので、以降では第１基板生産機９１に詳細な符号を付して説明する。交流電源２は、交流電圧を発生して給電コイル３１に供給する。交流電圧の周波数は、後述する給電側共振回路および受電側共振回路の共振周波数に基づいて適宜設定されることが好ましい。３台の基板生産機９１、９２、９３に設けられた合計３個の交流電源２は、相互に独立して動作可能となっている。 Since the configurations of the three board production machines 91, 92, 93 and the non-contact power feeding device 1 of the other modularized board production machines are the same, the first board production machine 91 will be referred to in detail below. I will explain. The AC power supply 2 generates an AC voltage and supplies it to the power supply coil 31. The frequency of the AC voltage is preferably set appropriately based on the resonance frequencies of the power feeding side resonance circuit and the power receiving side resonance circuit, which will be described later. A total of three AC power supplies 2 provided in the three board production machines 91, 92, and 93 can operate independently of each other.

交流電源２は、例えば、直流電圧を出力する直流電源部と、直流電圧を交流変換する公知のブリッジ回路とを用いて構成できる。交流電源２は、電圧値や周波数、位相などを調整する機能を具備していてもよい。交流電源２の第１出力端子２１は、給電コイル３１の一端３１１に直結されており、第２出力端子２２は、給電側コンデンサ３５の一端３５１に接続されている。 The AC power supply 2 can be configured by using, for example, a DC power supply unit that outputs a DC voltage and a known bridge circuit that converts the DC voltage into an AC. The AC power supply 2 may have a function of adjusting a voltage value, a frequency, a phase, and the like. The first output terminal 21 of the AC power supply 2 is directly connected to one end 311 of the power feeding coil 31, and the second output terminal 22 is connected to one end 351 of the power feeding side capacitor 35.

給電側コンデンサ３５の他端３５２は、給電コイル３１の他端３５２に接続されている。これにより、閉じた給電回路が構成される。給電コイル３１は、給電素子の一形態である。給電コイル３１は、各基板生産機９１、９２、９３の前面に設けられており、搬送方向の前後で対称形状に形成され、モジュール化されている。給電側コンデンサ３５は、給電コイル３１に直列接続されて給電側共振回路を形成する共振用素子である。 The other end 352 of the feeding side capacitor 35 is connected to the other end 352 of the feeding coil 31. This constitutes a closed power supply circuit. The power feeding coil 31 is a form of a power feeding element. The feeding coil 31 is provided on the front surface of each of the substrate production machines 91, 92, and 93, and is formed symmetrically in the front-rear direction in the transport direction and is modularized. The feeding side capacitor 35 is a resonance element that is connected in series to the feeding coil 31 to form a feeding side resonance circuit.

２個の受電コイル４１は、移動体９９の給電コイル３１に対向する側面９８に配設されており、移動方向に沿い相互に離間して配置される。受電コイル４１および給電コイル３１は相互に電磁結合し、相互インダクタンスが発生して非接触給電が可能になる。受電コイル４１は、受電素子の一形態である。受電コイル４１の一端４１１は、受電側コンデンサ４５の一端４５１、および受電回路５を構成する整流回路５１の入力側の一端子５１１に接続されている。受電コイル４１の他端４１２は、受電側コンデンサ４５の他端４５２、および整流回路５１の入力側の他端子５１２に接続されている。受電側コンデンサ４５は、受電コイル４１に並列接続されて受電側共振回路を形成する共振用素子である。 The two power receiving coils 41 are arranged on the side surface 98 of the moving body 99 facing the power feeding coil 31, and are arranged so as to be separated from each other along the moving direction. The power receiving coil 41 and the power feeding coil 31 are electromagnetically coupled to each other, and mutual inductance is generated to enable non-contact power feeding. The power receiving coil 41 is a form of a power receiving element. One end 411 of the power receiving coil 41 is connected to one end 451 of the power receiving side capacitor 45 and one terminal 511 on the input side of the rectifier circuit 51 constituting the power receiving circuit 5. The other end 412 of the power receiving coil 41 is connected to the other end 452 of the power receiving side capacitor 45 and the other terminal 512 on the input side of the rectifier circuit 51. The power receiving side capacitor 45 is a resonance element that is connected in parallel to the power receiving coil 41 to form a power receiving side resonance circuit.

図２は、非接触給電装置１の移動体９９の側の詳細な回路構成を示した回路図である。図示されるように、受電回路５は、２個の受電コイル４１に個別に設けられた整流回路５１、および、２個の受電コイル４１に共通に設けられた直流電源回路５５を含んで構成されている。整流回路５１は、４個の整流ダイオードをブリッジ接続した全波整流回路５２、および全波整流回路５２の出力側に接続された平滑コンデンサ５３によって構成される。２個の整流回路５１の出力側の一端子５１３および他端子５１４は、直流電源回路５５に対して並列接続されている。２個の整流回路５１は、それぞれの入力側に接続された受電コイル４１が非接触給電により受け取った交流電力を直流電圧に変換して、直流電源回路５５に出力する。 FIG. 2 is a circuit diagram showing a detailed circuit configuration on the side of the mobile body 99 of the non-contact power feeding device 1. As shown in the figure, the power receiving circuit 5 includes a rectifying circuit 51 individually provided in the two power receiving coils 41 and a DC power supply circuit 55 commonly provided in the two power receiving coils 41. ing. The rectifier circuit 51 is composed of a full-wave rectifier circuit 52 in which four rectifier diodes are bridge-connected, and a smoothing capacitor 53 connected to the output side of the full-wave rectifier circuit 52. One terminal 513 and the other terminal 514 on the output side of the two rectifier circuits 51 are connected in parallel to the DC power supply circuit 55. The two rectifier circuits 51 convert the AC power received by the power receiving coil 41 connected to each input side by the non-contact power supply into a DC voltage and output it to the DC power supply circuit 55.

直流電源回路５５は、整流回路５１から出力された電圧値不定の直流電圧を概ね一定電圧の直流の駆動電圧に調整して、移動体９９に搭載された電気負荷５７に出力する。電気負荷５７は、移動体９９の移動用駆動源、例えばリニアモータなどを含んでいてもよい。直流電源回路５５として、スイッチング方式またはドロッパ方式のＤＣＤＣコンバータを例示できる。 The DC power supply circuit 55 adjusts the DC voltage output from the rectifier circuit 51 to a DC drive voltage having a substantially constant voltage, and outputs the DC voltage to the electric load 57 mounted on the moving body 99. The electric load 57 may include a moving drive source for the moving body 99, such as a linear motor. As the DC power supply circuit 55, a switching type or dropper type DCDC converter can be exemplified.

（２．非接触給電装置１の作用）
次に、給電コイル３１および受電コイル４１の移動方向の長さ、および移動方向に隣り合うコイル間の離間距離に関する大小関係、およびその大小関係がもたらす作用について説明する。図１に示されるように、基板生産ライン９側の給電コイル３１の移動方向の長さをＬＴとし、給電コイル３１の相互間の離間距離をＤＴとする。また、移動体９９側の受電コイル４１の移動方向の長さをＬＲとし、受電コイル４１の相互間の離間距離をＤＲとする。給電コイル３１の移動方向の長さＬＴは、基板生産機９１、９２、９３の幅寸法ＭＬよりも少しだけ小さい。 (2. Action of non-contact power supply device 1)
Next, the length of the power feeding coil 31 and the power receiving coil 41 in the moving direction, the magnitude relation regarding the separation distance between the coils adjacent to each other in the moving direction, and the action brought about by the magnitude relation will be described. As shown in FIG. 1, the length of the feeding coil 31 on the substrate production line 9 side in the moving direction is LT, and the separation distance between the feeding coils 31 is DT. Further, the length of the power receiving coil 41 on the moving body 99 side in the moving direction is defined as LR, and the separation distance between the power receiving coils 41 is defined as DR. The length LT of the feeding coil 31 in the moving direction is slightly smaller than the width dimension ML of the substrate producing machines 91, 92, and 93.

ここで、ＤＴ≦ＤＲの関係が成り立っている。この関係によれば、基板生産ライン９側の小さな離間距離ＤＴの間に、移動体９９側の２個の受電コイル４１が向かい合うことが生じない。このため、２個の受電コイル４１の少なくとも一方は必ず、離間距離ＤＴの範囲から外れて給電コイル３１に正対する。「正対」とは、受電コイル４１の移動方向の長さＬＲの全体が給電コイル３１の移動方向の長さＬＴの範囲内に向かい合う位置関係を意味する。 Here, the relationship of DT ≦ DR is established. According to this relationship, the two power receiving coils 41 on the moving body 99 side do not face each other between the small separation distance DT on the substrate production line 9 side. Therefore, at least one of the two power receiving coils 41 is always out of the range of the separation distance DT and faces the power feeding coil 31. The “face-to-face” means a positional relationship in which the entire length LR of the power receiving coil 41 in the moving direction faces within the range of the length LT of the power feeding coil 31 in the moving direction.

また、（２×ＬＲ＋ＤＲ）≦ＬＴの関係が成り立っている。この関係によれば、２個の受電コイル４１の移動方向の長さＬＲの全体が１個の給電コイル３１の移動方向の長さＬＴの範囲内に対向する時間帯が発生する。換言すると、移動体９９の移動に伴って、２個の受電コイル４１が１個の給電コイル３１に正対する位置関係が存在する。 Further, the relationship of (2 × LR + DR) ≦ LT is established. According to this relationship, a time zone in which the entire length LR of the two power receiving coils 41 in the moving direction faces each other within the range of the length LT of the one feeding coil 31 in the moving direction occurs. In other words, as the moving body 99 moves, there is a positional relationship in which the two power receiving coils 41 face one power feeding coil 31.

具体的に、図１に示される位置関係において、図中の左側の受電コイル４１は、第１基板生産機９１の給電コイル３１に正対し、図中の右側の受電コイル４１は、第２基板生産機９２の給電コイル３１に正対している。つまり、一の受電コイル４１が一の給電コイル３１と正対し、かつ、他の受電コイル４１が他の給電コイル３１と正対する位置関係が存在する。このとき、２個の受電コイル４１は、ともに良好な受電状態となり、矢印Ｐ１、Ｐ２に示されるように大きな交流電力を受け取ることができる。そして、２個の受電コイル４１が受け取った交流電力は、それぞれ整流された後に直流電源回路５５で合算される。これにより、２個の受電コイル４１が受け取った交流電力に相当する大きな直流電力が電気負荷５７に供給される。 Specifically, in the positional relationship shown in FIG. 1, the power receiving coil 41 on the left side in the drawing faces the power feeding coil 31 of the first substrate producing machine 91, and the power receiving coil 41 on the right side in the drawing is the second substrate. It faces the power feeding coil 31 of the production machine 92. That is, there is a positional relationship in which one power receiving coil 41 faces one power feeding coil 31 and the other power receiving coil 41 faces another power feeding coil 31. At this time, both of the two power receiving coils 41 are in a good power receiving state, and can receive a large amount of AC power as shown by arrows P1 and P2. Then, the AC power received by the two power receiving coils 41 is rectified and then added up by the DC power supply circuit 55. As a result, a large DC power corresponding to the AC power received by the two power receiving coils 41 is supplied to the electric load 57.

図１の位置関係から移動体９９が右方向に移動すると、右側の受電コイル４１は、第２基板生産機９２の給電コイル３１に正対し続ける。これに対し、左側の受電コイル４１は、第１基板生産機９１の給電コイル３１の正面からずれて対向する。「対向」とは、受電コイル４１の移動方向の長さＬＲの一部が給電コイル３１の移動方向の長さＬＴの範囲内に向かい合う位置関係を意味する。対向状態の受電コイル４１では、給電コイル３１と向かい合う対向面積が正対状態から減少するのにつれて、受け取る交流電力が減少する。 When the moving body 99 moves to the right from the positional relationship of FIG. 1, the power receiving coil 41 on the right side continues to face the power feeding coil 31 of the second substrate producing machine 92. On the other hand, the power receiving coil 41 on the left side is displaced from the front surface of the power feeding coil 31 of the first substrate producing machine 91 and faces the power receiving coil 41. The “opposite” means a positional relationship in which a part of the length LR of the power receiving coil 41 in the moving direction faces within the range of the length LT of the power feeding coil 31 in the moving direction. In the power receiving coil 41 in the facing state, the AC power received decreases as the facing area facing the power feeding coil 31 decreases from the facing state.

さらに、移動体９９が右方向に移動すると、図３に示される位置関係となる。図３は、２個の受電コイル４１のうち一方が給電コイル３１に正対し、他方がまたぎ受電状態となっている位置関係を例示した図である。図３において、右側の受電コイル４１は第２基板生産機９２の給電コイル３１に正対している。左側の受電コイル４１は、第１および第２基板生産機９１、９２の間に位置し、２個の給電コイル３１にまたがって対向している。 Further, when the moving body 99 moves to the right, the positional relationship shown in FIG. 3 is obtained. FIG. 3 is a diagram illustrating a positional relationship in which one of the two power receiving coils 41 faces the power feeding coil 31 and the other is in a straddling power receiving state. In FIG. 3, the power receiving coil 41 on the right side faces the power feeding coil 31 of the second substrate producing machine 92. The power receiving coil 41 on the left side is located between the first and second substrate producers 91 and 92, and faces the two power feeding coils 31.

またぎ受電状態の受電コイル４１が受け取る交流電力の大きさは、対向する２個の給電コイル３１との位置関係や、２個の交流電源２の周波数および位相などに依存する。したがって、またぎ受電状態の受電コイル４１は、良好な受電状態とは言えない。例えば、特許文献１の技術と同様に２個の交流電源２が逆位相であると、またぎ受電状態の受電コイル４１に対向する２個の給電コイル３１が形成する磁束の作用が打ち消し合い、受電状態は低下する。２個の交流電源２の周波数および位相が一致していると、またぎ受電状態の受電コイル４１の受電状態は改善される。 The magnitude of the AC power received by the power receiving coil 41 in the straddling power receiving state depends on the positional relationship between the two opposing feeding coils 31 and the frequency and phase of the two AC power supplies 2. Therefore, the power receiving coil 41 in the straddling power receiving state cannot be said to be in a good power receiving state. For example, as in the technique of Patent Document 1, when the two AC power supplies 2 are out of phase, the action of the magnetic flux formed by the two power feeding coils 31 facing the power receiving coil 41 in the straddling power receiving state cancels each other out and receives power. The condition drops. When the frequencies and phases of the two AC power supplies 2 match, the power receiving state of the power receiving coil 41 in the straddling power receiving state is improved.

一方、図中の右側の受電コイル４１は、第２基板生産機９２の給電コイル３１に正対し続けている。このため、右側の受電コイル４１は、良好な受電状態が維持され、矢印Ｐ３に示されるように大きな交流電力を受け取ることができる。したがって、右側の受電コイル４１が良好な受電状態で受け取る大きな交流電力が、最低でも確保される。 On the other hand, the power receiving coil 41 on the right side in the drawing continues to face the power feeding coil 31 of the second substrate producing machine 92. Therefore, the power receiving coil 41 on the right side can maintain a good power receiving state and can receive a large amount of AC power as shown by the arrow P3. Therefore, at least a large amount of AC power received by the power receiving coil 41 on the right side in a good power receiving state is secured.

図３の位置関係から移動体９９がさらに右方向に移動すると、２個の受電コイル４１が第２基板生産機９２の給電コイル３１に正対する位置関係となる。このとき、２個の受電コイル４１は、１個の給電コイル３１が誘起する磁束を分け合って良好な受電状態となる。したがって、図３に示される位置関係のときよりも大きな交流電力が確保される。移動体９９がさらに右方向に移動すると、今度は、左側の受電コイル４１の正対状態が維持され、右側の受電コイル４１が正対状態から対向状態、またぎ受電状態へと変化してゆく。その後、左側の受電コイル４１が第２基板生産機９２の給電コイル３１に正対し、右側の受電コイル４１が第３基板生産機９３の給電コイル３１に正対した位置関係となる。 When the moving body 99 further moves to the right from the positional relationship shown in FIG. 3, the two power receiving coils 41 are in a positional relationship facing the power feeding coil 31 of the second substrate producing machine 92. At this time, the two power receiving coils 41 share the magnetic flux induced by one power feeding coil 31 and are in a good power receiving state. Therefore, a larger AC power is secured than in the positional relationship shown in FIG. When the moving body 99 further moves to the right, the facing state of the power receiving coil 41 on the left side is maintained, and the power receiving coil 41 on the right side changes from the facing state to the facing state and then to the power receiving state. After that, the power receiving coil 41 on the left side faces the power feeding coil 31 of the second substrate producing machine 92, and the power receiving coil 41 on the right side faces the power feeding coil 31 of the third board producing machine 93.

上述した位置関係の変化から分かるように、第１実施形態では、移動体９９の移動に伴って、給電コイル３１に正対する受電コイル４１は順次切り替わってゆく。それでも、常に、少なくともいずれか１個の受電コイル４１が給電コイル３１に正対して、良好な受電状態が確保される。 As can be seen from the change in the positional relationship described above, in the first embodiment, the power receiving coil 41 facing the power feeding coil 31 is sequentially switched as the moving body 99 moves. Nevertheless, at least one of the power receiving coils 41 always faces the power feeding coil 31 to ensure a good power receiving state.

また、第１〜第３基板生産機９１、９２、９３の列設位置の順序変更、およびモジュール化された他の基板生産機との入れ替えが行われても、図１に示された基板生産ライン９側の配置が維持される。つまり、基板生産ライン９のライン構成が変更されても、非接触給電装置１は、構成が変更されずに良好な受電状態が確保される。さらに、基板生産ライン９の列設台数が４台以上にモジュール増設対応されたとき、増設部分においても給電コイル３１の長さＬＴおよび離間距離ＤＴは同一値になる。したがって、基板生産ライン９がモジュール増設対応されたときにも、非接触給電装置１は、良好な受電状態が確保される。 Further, even if the order of the rowing positions of the first to third board production machines 91, 92, and 93 is changed and the board is replaced with another modularized board production machine, the board production shown in FIG. 1 is performed. The arrangement on the line 9 side is maintained. That is, even if the line configuration of the substrate production line 9 is changed, the non-contact power feeding device 1 is ensured in a good power receiving state without changing the configuration. Further, when the number of rows of the board production line 9 is increased to 4 or more, the length LT and the separation distance DT of the power feeding coil 31 become the same value even in the expansion portion. Therefore, even when the substrate production line 9 is compatible with the addition of modules, the non-contact power feeding device 1 ensures a good power receiving state.

また、交流電源２は、３台の基板生産機９１、９２、９３にそれぞれ設けられ、相互に独立して動作可能となっている。したがって、個々の交流電源２は、小容量で小形化が可能になり、基板生産機９１、９２、９３へ搭載するスペースの制約が小さい。さらに、移動体９９から離れている基板生産機では、交流電源２を停止できる。例えば、図１および図３に示される位置関係のとき、第３基板生産機９３では交流電源２を停止できる。 Further, the AC power supply 2 is provided in each of the three board production machines 91, 92, and 93, and can operate independently of each other. Therefore, each AC power supply 2 can be miniaturized with a small capacity, and the space limitation for mounting on the substrate production machines 91, 92, and 93 is small. Further, in the substrate production machine away from the moving body 99, the AC power supply 2 can be stopped. For example, in the positional relationship shown in FIGS. 1 and 3, the AC power supply 2 can be stopped in the third substrate production machine 93.

（３．第１実施形態における非接触給電装置１の態様および効果）
非接触給電装置１は、基板生産ライン９（固定部）に設定された移動方向に沿い相互に離間して配置された複数の給電コイル３１（給電素子）と、各給電コイル３１に交流電力を供給する交流電源２と、移動方向に沿って移動する移動体９９に設けられ、対向配置される給電コイル３１と電気的に結合して非接触で交流電力を受け取る受電コイル４１（受電素子）と、受電コイル４１が受け取った交流電力を変換し、駆動電圧を生成して移動体９９に設けられた電気負荷５７に出力する受電回路５と、を備えた非接触給電装置１であって、受電コイル４１は、移動体９９の移動方向に沿い相互に離間して複数配置されており、給電コイル３１の移動方向の長さをＬＴとし、給電コイル３１の相互間の離間距離をＤＴとし、受電コイル４１の移動方向の長さをＬＲとし、受電コイル４１の相互間の離間距離をＤＲとしたとき、ＤＴ≦ＤＲの関係、および（２×ＬＲ＋ＤＲ）≦ＬＴの関係が成り立つ。 (3. Aspects and effects of the non-contact power feeding device 1 in the first embodiment)
The non-contact power feeding device 1 applies AC power to a plurality of feeding coils 31 (feeding elements) arranged apart from each other along a moving direction set in a substrate production line 9 (fixed portion), and each feeding coil 31. An AC power supply 2 to be supplied and a power receiving coil 41 (power receiving element) provided on a moving body 99 that moves along the moving direction and electrically coupled to a power feeding coil 31 arranged to face each other to receive AC power in a non-contact manner. A non-contact power feeding device 1 including a power receiving circuit 5 that converts the AC power received by the power receiving coil 41, generates a driving voltage, and outputs the drive voltage to an electric load 57 provided on the moving body 99. A plurality of coils 41 are arranged apart from each other along the moving direction of the moving body 99, the length of the feeding coil 31 in the moving direction is LT, the separation distance between the feeding coils 31 is DT, and power is received. When the length of the coil 41 in the moving direction is LR and the separation distance between the power receiving coils 41 is DR, the relationship of DT ≦ DR and the relationship of (2 × LR + DR) ≦ LT are established.

これによれば、移動体９９の位置に関係なく常に、少なくともいずれか１個の受電コイル４１が給電コイル３１に正対する。したがって、常に、少なくとも１個の受電コイル４１は、良好な受電状態を確保して大きな交流電力を受け取ることができる。これにより、受電する交流電力の脈動を抑制して、常に安定した非接触給電を行える。 According to this, at least one of the power receiving coils 41 always faces the power feeding coil 31 regardless of the position of the moving body 99. Therefore, at least one power receiving coil 41 can always secure a good power receiving state and receive a large amount of AC power. As a result, the pulsation of the AC power received can be suppressed, and stable non-contact power supply can always be performed.

さらに、非接触給電装置１において、移動体９９の移動に伴って複数の内の一の受電コイル４１が複数の内の一の給電コイル３１と正対し、かつ、複数の内の他の受電コイル４１が複数の内の他の給電コイル３１と正対する位置関係が存在する。このとき、２個の受電コイル４１は、ともに良好な受電状態となり、大きな交流電力が確保される。 Further, in the non-contact power feeding device 1, one of the plurality of power receiving coils 41 faces the plurality of power feeding coils 31 as the moving body 99 moves, and the other power receiving coils among the plurality of the power receiving coils 1 face each other. There is a positional relationship in which 41 faces the other feeding coil 31 among the plurality. At this time, both of the two power receiving coils 41 are in a good power receiving state, and a large AC power is secured.

また、非接触給電装置１において、移動体９９の移動に伴って隣り合う２個の受電コイル４１が１個の給電コイル３１と正対する位置関係が存在する。このとき、２個の受電コイル４１は、１個の給電コイル３１が誘起する磁束を分け合って良好な受電状態となり、大きな交流電力が確保される。 Further, in the non-contact power feeding device 1, there is a positional relationship in which two adjacent power receiving coils 41 face one power feeding coil 31 as the moving body 99 moves. At this time, the two power receiving coils 41 share the magnetic flux induced by one power feeding coil 31 to be in a good power receiving state, and a large AC power is secured.

さらに、交流電源２は、複数の給電コイル３１に個別に設けられ、かつ相互に独立して動作する複数からなる。これによれば、個々の交流電源２は、小容量で小形化が可能になるので、配置スペースの制約が少ない。さらに、移動体９９から離れた給電コイル３１に交流電力を供給する交流電源２を停止できるので、発生する損失が低減される。 Further, the AC power supply 2 is composed of a plurality of AC power supplies 2 which are individually provided on the plurality of power feeding coils 31 and which operate independently of each other. According to this, since each AC power supply 2 can be miniaturized with a small capacity, there are few restrictions on the arrangement space. Further, since the AC power supply 2 that supplies AC power to the power supply coil 31 away from the moving body 99 can be stopped, the loss that occurs is reduced.

さらに、受電回路５は、複数の受電コイル４１に個別に設けられ、受電コイル４１が受け取った交流電力を直流の駆動電圧に変換して出力する複数の整流回路５１を含むとともに、各整流回路５１の出力側が電気負荷５７に対して並列接続されている。この回路構成によれば、受電状態の良好な少なくとも１個の受電コイル４１が受け取った交流電力で電気負荷５７を駆動できる。したがって、特許文献２の技術などで用いられる蓄電素子（バッテリ）および充電回路を不要にできる。 Further, the power receiving circuit 5 is individually provided in the plurality of power receiving coils 41, includes a plurality of rectifying circuits 51 that convert the AC power received by the power receiving coil 41 into a DC drive voltage and output the power receiving circuits 51, and each rectifying circuit 51. The output side of is connected in parallel to the electric load 57. According to this circuit configuration, the electric load 57 can be driven by the AC power received by at least one power receiving coil 41 having a good power receiving state. Therefore, the power storage element (battery) and the charging circuit used in the technology of Patent Document 2 and the like can be eliminated.

さらに、非接触給電装置１は、受電コイル４１および給電コイル３１に接続されて共振回路を形成する受電側コンデンサ４５および給電側コンデンサ３５（共振用素子）をさらに備える。これによれば、共振特性を利用して高い給電効率が得られる。 Further, the non-contact power feeding device 1 further includes a power receiving side capacitor 45 and a power feeding side capacitor 35 (resonance element) connected to the power receiving coil 41 and the power feeding coil 31 to form a resonance circuit. According to this, high feeding efficiency can be obtained by utilizing the resonance characteristic.

さらに、受電素子は受電コイル４１とされ、給電素子は給電コイル３１とされている。これによれば、電磁結合方式の非接触給電装置１で、常に安定した非接触給電を行える。 Further, the power receiving element is a power receiving coil 41, and the power feeding element is a power feeding coil 31. According to this, the electromagnetic coupling type non-contact power feeding device 1 can always perform stable non-contact power feeding.

さらに固定部は、複数の基板生産機９１〜９３が列設された基板生産ライン９であり、複数の基板生産機９１〜９３の列設方向に移動方向が設定されており、複数の給電コイル３１は、複数の基板生産機９１〜９３に同数個ずつ配置されている。これによれば、第１〜第３基板生産機９１、９２、９３の列設位置の順序変更、およびモジュール化された他の基板生産機との入れ替え、ならびに、列設台数が４台以上に増設されるモジュール増設対応の全ての場合に、非接触給電装置１は、良好な受電状態が確保される。したがって、基板生産ライン９のライン構成の変更時やモジュール増設対応時に、非接触給電装置１に関する段取り替え作業は簡素である。 Further, the fixing portion is a substrate production line 9 in which a plurality of substrate production machines 91 to 93 are arranged in a row, and a moving direction is set in a rowing direction of the plurality of substrate production machines 91 to 93, and a plurality of power feeding coils are provided. The same number 31 is arranged in each of a plurality of substrate production machines 91 to 93. According to this, the order of the rowing positions of the first to third board producing machines 91, 92, 93 is changed, the order is replaced with other modularized board producing machines, and the number of rows is increased to 4 or more. A good power receiving state is ensured for the non-contact power feeding device 1 in all cases corresponding to the expansion of modules to be added. Therefore, when the line configuration of the board production line 9 is changed or when the module is added, the setup change work related to the non-contact power feeding device 1 is simple.

（４．第２実施形態の基板生産ライン９および非接触給電装置１Ａ）
次に、第２実施形態の基板生産ライン９について、第１実施形態と異なる点を主に説明する。図４は、第２実施形態の基板生産ライン９および非接触給電装置１Ａの構成を模式的に説明する図である。非接触給電装置１Ａは、第１実施形態と同様の装置構成であり、給電コイル３１および受電コイル４１の移動方向の長さＬｔ、Ｌｒ、および移動方向に隣り合うコイル間の離間距離Ｄｔ、Ｄｒが第１実施形態と異なる。 (4. Substrate production line 9 and non-contact power feeding device 1A of the second embodiment)
Next, the substrate production line 9 of the second embodiment will be mainly described as being different from the first embodiment. FIG. 4 is a diagram schematically illustrating the configuration of the substrate production line 9 and the non-contact power feeding device 1A of the second embodiment. The non-contact power feeding device 1A has the same device configuration as that of the first embodiment, and the lengths Lt and Lr of the power feeding coil 31 and the power receiving coil 41 in the moving direction, and the separation distances Dt and Dr between adjacent coils in the moving direction. Is different from the first embodiment.

図４に示されるように、基板生産ライン９側の給電コイル３１の移動方向の長さをＬｔとし、給電コイル３１の相互間の離間距離をＤｔとする。また、移動体９９側の受電コイル４１の移動方向の長さをＬｒとし、受電コイル４１の相互間の離間距離をＤｒとする。ここで、第１実施形態と同様に、Ｄｔ≦Ｄｒの関係が成り立ち、さらに、（２×Ｌｒ＋Ｄｒ）≦Ｌｔの関係が成り立っている。したがって、第２実施形態においても、移動体９９の位置に関係なく常に、少なくともいずれか１個の受電コイル４１が給電コイル３１に正対する。 As shown in FIG. 4, the length of the feeding coil 31 on the substrate production line 9 side in the moving direction is Lt, and the separation distance between the feeding coils 31 is Dt. Further, the length of the power receiving coil 41 on the moving body 99 side in the moving direction is Lr, and the separation distance between the power receiving coils 41 is Dr. Here, as in the first embodiment, the relationship of Dt ≦ Dr is established, and further, the relationship of (2 × Lr + Dr) ≦ Lt is established. Therefore, also in the second embodiment, at least one of the power receiving coils 41 always faces the power feeding coil 31 regardless of the position of the moving body 99.

図４には、図中の左側の受電コイル４１が第１基板生産機９１の給電コイル３１に対向し、図中の右側の受電コイル４１が第２基板生産機９２の給電コイル３１に正対した位置関係が例示されている。図４の位置関係において、左側の受電コイル４１は、矢印Ｐ４に示されるように、第１基板生産機９１の給電コイル３１から、正対状態よりも小さめの交流電力を受け取る。また、右側の受電コイル４１は、第２基板生産機９２の給電コイル３１から、大きな交流電力を受け取る。 In FIG. 4, the power receiving coil 41 on the left side in the drawing faces the feeding coil 31 of the first substrate producing machine 91, and the power receiving coil 41 on the right side in the drawing faces the feeding coil 31 of the second substrate producing machine 92. The positional relationship is illustrated. In the positional relationship of FIG. 4, the power receiving coil 41 on the left side receives AC power smaller than the facing state from the power feeding coil 31 of the first substrate producing machine 91 as shown by the arrow P4. Further, the power receiving coil 41 on the right side receives a large amount of AC power from the power feeding coil 31 of the second substrate production machine 92.

また、第２実施形態において、第１実施形態と異なるＬｒ≦Ｄｔの関係が成り立っている。つまり、受電コイル４１の移動方向の長さＬｒは、給電コイル３１の相互間の離間距離Ｄｔ以下とされている。この構成では、受電コイル４１のまたぎ受電状態が発生しないので、複数の交流電源２の相互間で、周波数ずれや位相ずれなどを考慮する必要が無くなる。 Further, in the second embodiment, a relationship of Lr ≦ Dt different from that of the first embodiment is established. That is, the length Lr of the power receiving coil 41 in the moving direction is set to be equal to or less than the separation distance Dt between the feeding coils 31. In this configuration, since the power receiving state of the power receiving coil 41 does not occur, it is not necessary to consider frequency shift and phase shift between the plurality of AC power supplies 2.

非接触給電装置１Ａは、基板生産ライン９（固定部）に設定された移動方向に沿い相互に離間して配置された複数の給電コイル３１（給電素子）と、各給電コイル３１に交流電力を供給する交流電源２と、移動方向に沿って移動する移動体９９に設けられ、対向配置される給電コイル３１と電気的に結合して非接触で交流電力を受け取る受電コイル４１（受電素子）と、受電コイル４１が受け取った交流電力を変換し、駆動電圧を生成して移動体９９に設けられた電気負荷５７に出力する受電回路５と、を備えた非接触給電装置１Ａであって、受電コイル４１は、移動体９９の移動に伴って給電コイル３１と正対する位置関係が存在し、かつ、隣り合う２個の給電コイル３１には同時に対向できないように、移動体９９の移動方向に沿い相互に離間して複数配置されている。 The non-contact power feeding device 1A applies AC power to a plurality of feeding coils 31 (feeding elements) arranged apart from each other along the moving direction set in the substrate production line 9 (fixed portion), and each feeding coil 31. An AC power supply 2 to be supplied and a power receiving coil 41 (power receiving element) provided on a moving body 99 that moves along the moving direction and electrically coupled to a power feeding coil 31 arranged to face each other to receive AC power in a non-contact manner. A non-contact power feeding device 1A including a power receiving circuit 5 that converts the AC power received by the power receiving coil 41, generates a drive voltage, and outputs the drive voltage to an electric load 57 provided on the moving body 99. The coil 41 has a positional relationship facing the feeding coil 31 as the moving body 99 moves, and is along the moving direction of the moving body 99 so that the two adjacent feeding coils 31 cannot face each other at the same time. A plurality of them are arranged apart from each other.

これによれば、受電コイル４１のまたぎ受電状態が発生しないので、複数の交流電源２の相互間で、周波数ずれや位相ずれなどを考慮する必要が無くなる。 According to this, since the power receiving state of the power receiving coil 41 does not occur, it is not necessary to consider frequency shift and phase shift between the plurality of AC power supplies 2.

（５．第３実施形態の基板生産ライン９Ｂおよび非接触給電装置１Ｂ）
次に、第３実施形態基板生産ライン９Ｂおよび非接触給電装置１Ｂについて、第１および第２実施形態と異なる点を主に説明する。図５は、第３実施形態の基板生産ライン９Ｂおよび非接触給電装置１Ｂの構成を模式的に説明する図である。非接触給電装置１Ｂは、基板生産ライン９Ｂに組み付けられているが、移動体９９側の受電コイル４１は１個である。また、給電コイル３１および受電コイル４１の移動方向の長さＬＳ、ＬＣなどは、第１および第２実施形態から変更されている。第３実施形態では、第１および第２実施形態とは逆に、受電コイル４１が給電コイル３１よりも長くなっている。 (5. Substrate production line 9B and non-contact power feeding device 1B of the third embodiment)
Next, the third embodiment substrate production line 9B and the non-contact power feeding device 1B will be mainly described as being different from the first and second embodiments. FIG. 5 is a diagram schematically illustrating the configuration of the substrate production line 9B and the non-contact power feeding device 1B of the third embodiment. The non-contact power feeding device 1B is assembled to the substrate production line 9B, but the power receiving coil 41 on the moving body 99 side is one. Further, the lengths LS, LC, etc. of the power feeding coil 31 and the power receiving coil 41 in the moving direction are changed from the first and second embodiments. In the third embodiment, contrary to the first and second embodiments, the power receiving coil 41 is longer than the feeding coil 31.

図５に示されるように、１個の受電コイル４１は、移動体９９の給電コイル３１に対向する側面９８に配設されている。受電コイル４１の両端は、受電側コンデンサ４５に接続されるとともに、受電回路５Ｂを構成する整流回路５１の入力側にも接続されている。整流回路５１の出力側は、直流電源回路５５に接続されている。一方、３台の基板生産機９１、９２、９３に設けられた合計３個の交流電源２は、移動体９９の近傍の給電コイル３１で周波数および位相が揃うように制御される。 As shown in FIG. 5, one power receiving coil 41 is arranged on the side surface 98 of the moving body 99 facing the power feeding coil 31. Both ends of the power receiving coil 41 are connected to the power receiving side capacitor 45 and also to the input side of the rectifier circuit 51 constituting the power receiving circuit 5B. The output side of the rectifier circuit 51 is connected to the DC power supply circuit 55. On the other hand, a total of three AC power supplies 2 provided in the three board production machines 91, 92, and 93 are controlled by the feeding coil 31 in the vicinity of the moving body 99 so that the frequencies and phases are aligned.

ここで、基板生産ライン９Ｂ側の給電コイル３１の移動方向の長さＬＳは、第１実施形態における長さＬＴよりも小さく変更されている。これに伴い、給電コイル３１の相互間の離間距離ＤＳは、第１実施形態における離間距離ＤＴよりも大きくなる。また、移動体９９側の受電コイル４１の移動方向の長さＬＣは、第１実施形態における長さＬＲよりも大きく変更されている。 Here, the length LS of the power feeding coil 31 on the substrate production line 9B side in the moving direction is changed to be smaller than the length LT in the first embodiment. Along with this, the separation distance DS between the feeding coils 31 becomes larger than the separation distance DT in the first embodiment. Further, the length LC of the power receiving coil 41 on the moving body 99 side in the moving direction is significantly changed from the length LR in the first embodiment.

そして、ＬＳ＜ＬＣの関係が成り立っている。この関係によれば、受電コイル４１が給電コイル３１に正対して、良好な受電状態を確保できる位置関係が存在する。ここで、「正対」とは、受電コイル４１の移動方向の長さＬＲの範囲内に、給電コイル３１の移動方向の長さＬＳの全体が向かい合う位置関係を意味する。「正対」の拡張された意味は、受電コイル４１および給電コイル３１の内の長い一方の範囲内に、短い他方の全体が向かい合うことである。 Then, the relationship of LS <LC is established. According to this relationship, there is a positional relationship in which the power receiving coil 41 faces the power feeding coil 31 and a good power receiving state can be ensured. Here, "face-to-face" means a positional relationship in which the entire length LS of the power feeding coil 31 in the moving direction faces each other within the range of the length LR of the power receiving coil 41 in the moving direction. The extended meaning of "face-to-face" is that the entire short one faces within the long range of the power receiving coil 41 and the feeding coil 31.

さらに、ＤＳ＜ＬＣの関係が成り立っている。この関係によれば、受電コイル４１は、１個の給電コイル３１に正対または対向する状態、あるいは、２個の給電コイル３１の少なくとも一部に対向するまたぎ受電状態になる。またぎ受電状態であっても、２個の給電コイル３１に交流電圧を供給する２個の交流電源２は、周波数および位相が揃っているので、受電コイル４１の受電状態は良好になる。仮に、ＤＳ＜ＬＣの関係が成り立たないと、受電コイル４１の移動方向の長さＬＣの全体が２個の給電コイル３１の離間距離ＤＳの間に入り込む位置関係が存在する。このとき、受電コイル４１は、給電コイル３１が形成する磁束に殆ど鎖交できなくなる。したがって、受電コイル４１は、受電状態が低下して、受け取る交流電力が極端に減少してしまう。 Furthermore, the relationship of DS <LC is established. According to this relationship, the power receiving coil 41 is in a state of facing or facing one feeding coil 31 or in a straddling power receiving state facing at least a part of the two feeding coils 31. Even in the straddling power receiving state, the two AC power supplies 2 that supply the AC voltage to the two feeding coils 31 have the same frequency and phase, so that the power receiving state of the power receiving coil 41 is good. If the relationship of DS <LC is not established, there is a positional relationship in which the entire length LC of the power receiving coil 41 in the moving direction enters between the separation distance DSs of the two power feeding coils 31. At this time, the power receiving coil 41 can hardly interlink with the magnetic flux formed by the feeding coil 31. Therefore, the power receiving state of the power receiving coil 41 is lowered, and the AC power received by the power receiving coil 41 is extremely reduced.

具体的に、図５に示される位置関係において、受電コイル４１は、第１基板生産機９１の給電コイル３１の一部、および第２基板生産機９２の給電コイル３１の一部に向かいあっており、またぎ受電状態になっている。したがって、矢印Ｐ６、Ｐ７に示されるように、受電コイル４１は、２個の給電コイル３１、３２からそれぞれ交流電力を受け取ることができる。 Specifically, in the positional relationship shown in FIG. 5, the power receiving coil 41 faces a part of the feeding coil 31 of the first board producing machine 91 and a part of the feeding coil 31 of the second board producing machine 92. The coil is in a straddling power receiving state. Therefore, as shown by arrows P6 and P7, the power receiving coil 41 can receive AC power from the two power feeding coils 31 and 32, respectively.

非接触給電装置１Ｂは、基板生産ライン９Ｂ（固定部）に定められた移動方向に沿い相互に離間して配置された複数の給電コイル３１（給電素子）と、給電コイル３１に交流電力を供給する交流電源２と、移動方向に移動する移動体９９に設けられ、対向配置される給電コイル３１と電気的に結合して非接触で交流電力を受け取る受電コイル４１（受電素子）と、受電コイル４１が受け取った交流電力を変換し、駆動電圧を生成して移動体９９に設けられた電気負荷５７に出力する受電回路５Ｂと、を備えた非接触給電装置１Ｂであって、給電コイル３１の移動方向の長さをＬＳとし、給電コイル３１の相互間の離間距離をＤＳとし、受電コイル４１の移動方向の長さをＬＣとしたとき、ＬＳ＜ＬＣの関係、およびＤＳ＜ＬＣの関係が成り立つ。 The non-contact power feeding device 1B supplies AC power to a plurality of feeding coils 31 (feeding elements) arranged apart from each other along a moving direction defined in a substrate production line 9B (fixed portion) and a feeding coil 31. A power receiving coil 41 (power receiving element) that is provided on a moving body 99 that moves in the moving direction and electrically couples with a power feeding coil 31 that is arranged to face each other and receives AC power in a non-contact manner, and a power receiving coil. A non-contact power feeding device 1B including a power receiving circuit 5B that converts the AC power received by the 41, generates a driving voltage, and outputs the driving voltage to the electric load 57 provided on the moving body 99, and is a non-contact power feeding device 1B of the power feeding coil 31. When the length in the moving direction is LS, the separation distance between the feeding coils 31 is DS, and the length in the moving direction of the power receiving coil 41 is LC, the relationship of LS <LC and the relationship of DS <LC are It holds.

これによれば、受電コイル４１は、常時、少なくとも１個の給電コイル３１の少なくとも一部に対向するので、受け取る交流電力が極端に減少する脈動は発生しない。したがって、特許文献２の技術で離間距離Ｄの間に二次側給電トランスが移動する場合と比較して良好な受電状態が維持され、常に安定した非接触給電を行える。 According to this, since the power receiving coil 41 always faces at least a part of at least one power feeding coil 31, pulsation in which the received AC power is extremely reduced does not occur. Therefore, in the technique of Patent Document 2, a better power receiving state is maintained as compared with the case where the secondary side feeding transformer moves during the separation distance D, and stable non-contact feeding can always be performed.

さらに、交流電源２は、複数の給電コイル３１に個別に設けられ、かつ移動体９９の近傍の給電コイル３１で相互に周波数および位相が揃うように制御される複数からなる。これによれば、またぎ受電状態の受電コイル４１の受電状態を良好にできる。また、個々の交流電源２は、小容量で小形化が可能になるので、配置スペースの制約が少ない。さらに、移動体９９から離れた給電コイル３１に交流電力を供給する交流電源２を停止できるので、発生する損失が低減される。 Further, the AC power supply 2 is composed of a plurality of AC power supplies 2 individually provided in the plurality of power feeding coils 31 and controlled so that the frequencies and phases are aligned with each other by the feeding coils 31 in the vicinity of the moving body 99. According to this, the power receiving state of the power receiving coil 41 in the straddling power receiving state can be improved. Further, since each AC power supply 2 can be miniaturized with a small capacity, there are few restrictions on the arrangement space. Further, since the AC power supply 2 that supplies AC power to the power supply coil 31 away from the moving body 99 can be stopped, the loss that occurs is reduced.

（６．実施形態の応用および変形）
なお、第１および第２実施形態において、各基板生産機９１、９２、９３の前面の移動方向に、給電コイル３１を２個ずつ並べて配置することもできる。この場合、交流電源２は、２個の給電コイル３１が電気的に直列接続または並列接続された両端に交流電圧を供給する。一方、移動体９９側の受電コイル４１を２個よりも多くすることができる。受電コイル４１を３個とした場合、前述した２個の不等式の関係が成り立つ条件下で、常に、少なくともいずれか１個の受電コイル４１が給電コイル３１に正対する。さらに、受電コイル４１を４個とした場合、前述した２個の不等式の関係が成り立つ条件下で、常に、少なくともいずれか２個の受電コイル４１が給電コイル３１に正対する。 (6. Application and modification of the embodiment)
In addition, in the 1st and 2nd embodiments, two feeding coils 31 may be arranged side by side in the moving direction of the front surface of each of the substrate producing machines 91, 92, 93. In this case, the AC power supply 2 supplies an AC voltage to both ends of the two feeding coils 31 electrically connected in series or in parallel. On the other hand, the number of power receiving coils 41 on the moving body 99 side can be increased to more than two. When the number of power receiving coils 41 is three, at least one of the power receiving coils 41 always faces the power feeding coil 31 under the condition that the above-mentioned two inequality relationships are established. Further, when the number of the power receiving coils 41 is four, at least one of the two power receiving coils 41 always faces the power feeding coil 31 under the condition that the above-mentioned two inequality relationships are established.

また、非接触給電の方式は、給電コイル３１および受電コイル４１を用いた電磁結合方式に限定されず、例えば、給電電極および受電電極を用いた静電結合方式であってもよい。本発明は、その他にも様々な応用や変形が可能である。 Further, the non-contact power feeding method is not limited to the electromagnetic coupling method using the feeding coil 31 and the power receiving coil 41, and may be, for example, an electrostatic coupling method using the feeding electrode and the power receiving electrode. The present invention can be applied to various other applications and modifications.

第１〜第３実施形態の基板生産ライン（９、９Ｂ）に用いる非接触給電の構成は、基板以外の製品を生産する組立ラインや加工ライン、電動車両の走行中給電など幅広い分野に利用可能である。 The non-contact power supply configuration used for the board production lines (9, 9B) of the first to third embodiments can be used in a wide range of fields such as assembly lines and processing lines for producing products other than boards, and power supply during running of electric vehicles. Is.

１、１Ａ、１Ｂ：非接触給電装置
２：交流電源 ３１：給電コイル
３５：給電側コンデンサ ４１：受電コイル
４５：受電側コンデンサ ５、５Ｂ：受電回路
５１：整流回路 ５５：直流電源回路 ５７：電気負荷
９、９Ｂ：基板生産ライン
９１、９２、９３：第１〜第３基板生産機 ９９：移動体
ＬＴ、Ｌｔ、ＬＳ：給電コイルの移動方向の長さ
ＤＴ、Ｄｔ、ＤＳ：給電コイルの相互間の離間距離
ＬＲ、Ｌｒ、ＬＣ：受電コイルの移動方向の長さ
ＤＲ、Ｄｒ：受電コイルの相互間の離間距離
1, 1A, 1B: Non-contact power supply device 2: AC power supply 31: Power supply coil 35: Power supply side capacitor 41: Power receiving coil 45: Power receiving side capacitor 5, 5B: Power receiving circuit 51: Rectification circuit 55: DC power supply circuit 57: Electricity Loads 9, 9B: Board production lines 91, 92, 93: 1st to 3rd board production machines 99: Moving objects LT, Lt, LS: Length in the moving direction of the feeding coil DT, Dt, DS: Mutual feeding coil Separation distance between LR, Lr, LC: Length in the moving direction of the power receiving coil DR, Dr: Separation distance between the power receiving coils

Claims (5)

列設された複数の基板生産機と、
複数の前記基板生産機の前方に配設されて列設方向に延在し、保管庫に至るガイドレールと、
前記ガイドレールに沿って前記列設方向に移動し、前記基板生産機で使用する機材および部材の少なくとも一方を前記保管庫と前記基板生産機の間で搬送する移動体と、
複数の前記基板生産機の各々に設けられた給電素子と、
前記移動体の前記給電素子に対向する側面に設けられ、常時、少なくとも１個の前記給電素子の少なくとも一部に対向して、非接触給電により電力を受け取る受電素子と、
前記受電素子が受け取った電力で前記移動体を駆動する移動用駆動源と、
を備える基板生産ライン。 Multiple board production machines lined up and
Extend in the column arrangement direction are arranged in front of a plurality of the board production machine, and the guide rail extending in depot,
A moving body that moves in the rowing direction along the guide rail and conveys at least one of the equipment and members used in the substrate producing machine between the storage and the substrate producing machine.
A power feeding element provided in each of the plurality of substrate production machines and
A power receiving element provided on the side surface of the moving body facing the power feeding element , always facing at least a part of the at least one power feeding element, and receiving power by non-contact power feeding.
A mobile drive source that drives the mobile body with the electric power received by the power receiving element,
Board production line equipped with. 前記受電素子は、２個設けられ、前記移動体の位置に関係なく常に、少なくともいずれか１個が前記給電素子に正対する、請求項１に記載の基板生産ライン。 The substrate production line according to claim 1, wherein two power receiving elements are provided, and at least one of them always faces the power feeding element regardless of the position of the moving body. 前記移動体は、前記列設方向に隣接する２台の前記基板生産機に向かい合うことが可能である、請求項１または２に記載の基板生産ライン。 The substrate production line according to claim 1 or 2, wherein the moving body can face two adjacent substrate production machines in the rowing direction. 複数の前記基板生産機は、モジュール化されており、列設位置の順序変更、他の前記基板生産機との入れ替え、および、他の前記基板生産機の増設が可能とされている、請求項１〜３のいずれか一項に記載の基板生産ライン。 A plurality of the board producing machines are modularized so that the order of the row arrangement positions can be changed, the board producing machines can be replaced with other board producing machines, and the other board producing machines can be added. The substrate production line according to any one of 1 to 3. 列設され、かつ、モジュール化された複数の基板生産機と、
複数の前記基板生産機の前方に配設されて列設方向に延在し、保管庫に至るガイドレールと、
前記ガイドレールに沿って前記列設方向に移動し、前記基板生産機で使用する機材および部材の少なくとも一方を前記保管庫と前記基板生産機の間で搬送する移動体と、
複数の前記基板生産機の各々に設けられて前記列設方向に並び、かつ、モジュール化された給電素子と、
前記移動体の前記給電素子に対向する側面に設けられ、非接触給電により電力を受け取る受電素子と、を備え、
複数の前記基板生産機は、列設位置の順序変更、他の前記基板生産機との入れ替え、および、他の前記基板生産機の増設が可能とされている、
基板生産ライン。 Multiple board production machines that are lined up and modularized,
Extend in the column arrangement direction are arranged in front of a plurality of the board production machine, and the guide rail extending in depot,
A moving body that moves in the rowing direction along the guide rail and conveys at least one of the equipment and members used in the substrate producing machine between the storage and the substrate producing machine.
A power feeding element provided in each of the plurality of substrate producing machines, arranged in the rowing direction, and modularized.
A power receiving element provided on the side surface of the moving body facing the power feeding element and receiving power by non-contact power feeding is provided.
The plurality of the board producing machines can be rearranged in the order of the row arrangement positions, replaced with the other board producing machines, and the other board producing machines can be added.
Board production line.
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