JP5924496B2 - 電力伝送システム - Google Patents
電力伝送システム Download PDFInfo
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- JP5924496B2 JP5924496B2 JP2012241147A JP2012241147A JP5924496B2 JP 5924496 B2 JP5924496 B2 JP 5924496B2 JP 2012241147 A JP2012241147 A JP 2012241147A JP 2012241147 A JP2012241147 A JP 2012241147A JP 5924496 B2 JP5924496 B2 JP 5924496B2
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- B60L53/12—Inductive energy transfer
- B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transportation (AREA)
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Description
T i <R i <R o <T o
の関係を有し、前記所定方向は、前記受電アンテナと前記送電アンテナと間の位置ずれが発生する方向に対して垂直方向であることを特徴とする。
当該車両を停車させることが可能な停車スペースに設けられる。車両のユーザーはこの電力伝送システムが設けられている停車スペースに車両を停車させて、車両に搭載されている受電アンテナ201と、前記送電アンテナ105とを対向させることによって電力伝送システムからの電力を受電する。
とスイッチング素子QDがオンのとき、スイッチング素子QBとスイッチング素子QCがオ
フとされ、スイッチング素子QBとスイッチング素子QCがオンのとき、スイッチング素子QAとスイッチング素子QDがオフとされることで、接続部T1と接続部T2との間に矩形波の交流電圧を発生させる。なお、本実施形態においては、各スイッチング素子のスイッチングによって生成される矩形波の周波数の範囲は20kHz〜数1000kHz程度である。
る。この主制御部110は、図示されている主制御部110と接続される各構成と協働するように動作する。
0が配されている。フェライト基材280としては、比抵抗が大きく、透磁率が大きく、磁気ヒステリシスが小さいものが望ましい。フェライト基材280は、ケース体260に対して適当な手段により固着されることで、コイル体270の上方に第1距離d1の空間
を空けて配されるようになっている。このようなレイアウトにより、送電アンテナ105側で発生する磁力線は、フェライト基材280を透過する率が高くなり、送電アンテナ105から受電アンテナ201への電力伝送において、車両本体部を構成する金属物による磁力線への影響が軽微となる。
2をおいて配されるようになっている。このようなアルミニウム基材290に用いる金属
材料としてはアルミニウム以外の金属を用いることも可能である。
ト基材280と第2距離d2離間されて配されるアルミニウム基材290と、アルミニウ
ム基材290上に配される車体取り付け部265と、を有している。
パシタンス成分がC1、抵抗成分がRt1であり、受電アンテナ201のインダクタンス成
分がL2、キャパシタンス成分がC2、抵抗成分がRt2であり、送電アンテナ105と受電アンテナ201との間の相互インダクタンスがMであることを示している。また、Rは電池204の内部抵抗を示している。また、送電アンテナ105と受電アンテナ201との間の結合係数はkによって示される。
パシタンス成分C1である直列共振器を、また、受電アンテナ201は、インダクタンス
成分L2、キャパシタンス成分C2である直列共振器を構成するものと考える。
あり、図6(A)はスパイダーコイルを造形するために利用される基材600を示す図であり、図6(B)は基材600に導体線400を巻回する際のパターンの1例を示す図であり、図6(C)はスパイダーコイルを示す図である。
が、水平面に対して受電コイル670が形成する鉛直方向の第2の投影面の面積S2より
大きくなるように設定している。このような設定であると、図9(C)に示すように、送電アンテナ105と受電アンテナ201とのずれがある場合にも、大幅に電力伝送効率が低減してしまうようなことがないことを確認している。
電アンテナ105の外縁間距離がToで、受電アンテナ201の内縁間距離がRiで、受電アンテナ201の外縁間距離がRoであるとき、Ti<Ri<Ro<Toの関係を有すること
が好ましい。このような設定であると、送電アンテナ105と受電アンテナ201とのずれがある場合にも、大幅に電力伝送効率が低減してしまうようなことがない。また、上記のTi<Ri<Ro<Toの関係により、電力伝送システムにロバスト性を持たせることができるのは、図8(D)に示すように、送電コイル650、及び受電コイル670が共にレーストラック状のコイルを用いる場合でも同様である。
い程度に留められている点、の3点においても特徴点を有するものであることを付記しておく。
45毎に、導体線400が係止される面が、第1面→第2面→第1面→・・・というように交互に変わる巻回パターンを採用し、送電コイル650の外周部654では、連続した2つのコイル造形用突片645(又はコイル造形用突片665)で導体線400が係止される面が、第1面→第2面→第1面→・・・というように交互に変わる巻回パターンを採用する方法を挙げることができるが、送電コイル650の内周部653と外周部654とで巻き密度の疎密を付与することができれば、このような方法に限定されることなく、如何なる方法も採用することができる。
101・・・AC/DC変換部
102・・・電圧制御部
103・・・インバーター部
104・・・整合器
105・・・送電アンテナ
110・・・主制御部
120・・・通信部
201・・・受電アンテナ
202・・・整流部
203・・・充電制御部
204・・・電池
210・・・主制御部
220・・・通信部
230・・・インターフェイス部
260・・・ケース体
216・・・底板部
262・・・側板部
263・・・(上方)開口部
265・・・車体取り付け部
270・・・コイル体
271・・・基材
272・・・導電部
273・・・第1端部
274・・・第2端部
280・・・フェライト基材
290・・・アルミニウム基材
400・・・導体線
600・・・基材
601・・・第1面
602・・・第2面
610・・・基部
620・・・コイル造形用突片
640・・・基材
641・・・第1面
642・・・第2面
645・・・コイル造形用突片
650・・・送電コイル
653・・・内周部
654・・・外周部
657・・・高透磁率部材
660・・・基材
661・・・第1面
662・・・第2面
665・・・コイル造形用突片
670・・・受電コイル
Claims (1)
- 地上に設置されて巻回された送電コイルを含む送電アンテナと、
前記送電アンテナと対向配置され、巻回された受電コイルを含み、前記送電アンテナから電磁場を介して電気エネルギーを受電する受電アンテナと、を有し、
水平面に対して前記送電コイルが形成する鉛直方向の第1の投影面の面積が、
水平面に対して前記受電コイルが形成する鉛直方向の第2の投影面の面積より大きく、
所定方向における前記送電コイルの内縁間距離がT i であり、前記送電コイルの外縁間距離がT o であり、前記受電コイルの内縁間距離がR i であり、前記受電コイルの外縁間距離がR o であるとき、
T i <R i <R o <T o
の関係を有し、
前記所定方向は、前記受電アンテナと前記送電アンテナと間の位置ずれが発生する方向に対して垂直方向であることを特徴とする電力伝送システム。
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CN201380056548.1A CN104756361B (zh) | 2012-10-31 | 2013-10-29 | 电力传输系统 |
EP13850890.8A EP2916430B1 (en) | 2012-10-31 | 2013-10-29 | Power transmission system |
US14/433,771 US10110067B2 (en) | 2012-10-31 | 2013-10-29 | Power transmission system |
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JP6458466B2 (ja) * | 2014-11-28 | 2019-01-30 | トヨタ自動車株式会社 | コイルユニット |
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JP2018121036A (ja) * | 2017-01-27 | 2018-08-02 | 京セラ株式会社 | 非接触型電力伝送装置 |
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EP2916430B1 (en) | 2019-12-04 |
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