WO2019198355A1

WO2019198355A1 - Contactless power transmission system, power transmitting device, and power receiving device

Info

Publication number: WO2019198355A1
Application number: PCT/JP2019/007028
Authority: WO
Inventors: 宮崎　弘行
Original assignee: スミダコーポレーション株式会社
Priority date: 2018-04-13
Filing date: 2019-02-25
Publication date: 2019-10-17
Also published as: JP7187810B2; JP2019187158A

Abstract

The purpose of the present invention is to obtain a high degree of freedom for disposing a power receiving device with respect to a power transmitting device and a high power transmission efficiency from the power transmitting device to the power receiving device. This contactless power transmission system 100 is provided with: a power transmitting device 20 having a plurality of power transmitting electrodes disposed on a power transmitting surface; and a power receiving device 10 having a plurality of power receiving electrodes 11 disposed on a power receiving surface and electrically coupled with the power transmitting electrodes. The plurality of power transmitting electrodes include a plurality of first power transmitting electrodes 21 and a plurality of second power transmitting electrodes 22, wherein the first power transmitting electrodes 21 have a phase opposite to that of the second power transmitting electrodes 22. The plurality of power transmitting electrodes and the plurality of power receiving electrodes 11 are arranged so as to satisfy such a condition that: regardless of the relative position and orientation of the power receiving surface with respect to the power transmitting surface in a state that the power receiving surface is arranged so as to overlap with the power transmitting surface, one or more power receiving electrodes 11 overlap with the first power transmitting electrodes 21 and another one or more power receiving electrodes 11 overlap with the second power transmitting electrodes 22; and any of the power receiving electrodes 11 overlapping with the power transmitting electrodes overlaps with only either one of the first power transmitting electrodes 21 and the second power transmitting electrodes 22.

Description

非接触電力伝送システム、受電装置及び送電装置Non-contact power transmission system, power receiving device and power transmitting device

　本発明は、非接触電力伝送システム、受電装置及び送電装置に関する。 The present invention relates to a non-contact power transmission system, a power receiving device, and a power transmission device.

　電界結合方式の非接触電力伝送システムとしては、特許文献１に記載のものがある。
　特許文献１の非接触電力伝送システムは、第１主面に沿って設けられて交流電圧が印加される第１送電電極および第２送電電極を備える送電装置と、第２主面に沿って設けられて第１送電電極および第２送電電極と電界結合される第１受電電極および第２受電電極を備える受電装置とを備えている。第１送電電極および第１受電電極の各々のサイズは第２主面を第１主面に対向させた特定状態において第２主面に直交する方向から眺めて第１受電電極が第１送電電極の外縁内に収まるように調整されている。第１送電電極は切り欠きによって第１方向に並ぶ複数の部分電極に分割され、複数の部分電極の各々は第１方向に直交する第２方向に延びる短冊形状に形成されている。この非接触電力伝送システムは、更に、複数の部分電極のいずれか１つを交流電圧の印加先として選択する選択手段を備えている。第１受電電極の輪郭に割り当てられた２点間の最大距離は上記切り欠きの幅と短冊の幅との和に相当する距離を上回り、上記切り欠きの配置は特定状態において第２受電電極の一部が上記切り欠きと対向するように調整されている。
　特許文献１の非接触電力伝送システムによれば、同文献の図７（Ａ）から図９（Ａ）に示すように、送電装置に対して受電装置を高い自由度で配置して、送電装置から受電装置に電力を伝送することができる。 There exists a thing of patent document 1 as a non-contact electric power transmission system of an electric field coupling system.
The non-contact power transmission system of Patent Document 1 is provided along a first main surface and a power transmission device including a first power transmission electrode and a second power transmission electrode to which an AC voltage is applied, and a second main surface. And a power receiving device including a first power receiving electrode and a second power receiving electrode that are electrically coupled to the first power transmitting electrode and the second power transmitting electrode. Each size of the first power transmission electrode and the first power reception electrode is such that the first power reception electrode is the first power transmission electrode when viewed from a direction orthogonal to the second main surface in a specific state where the second main surface is opposed to the first main surface. It is adjusted to fit within the outer edge. The first power transmission electrode is divided into a plurality of partial electrodes arranged in the first direction by notches, and each of the plurality of partial electrodes is formed in a strip shape extending in a second direction orthogonal to the first direction. The non-contact power transmission system further includes selection means for selecting any one of the plurality of partial electrodes as an AC voltage application destination. The maximum distance between two points assigned to the contour of the first power receiving electrode exceeds the distance corresponding to the sum of the width of the notch and the width of the strip, and the arrangement of the notch is in the specific state of the second power receiving electrode. A part is adjusted to face the notch.
According to the non-contact power transmission system of Patent Document 1, as shown in FIGS. 7A to 9A of the same document, the power receiving device is arranged with a high degree of freedom with respect to the power transmitting device. Power can be transmitted to the power receiving apparatus.

国際公開第２０１３／１５３８４１号パンフレットInternational Publication No. 2013/153841 Pamphlet

　しかしながら、特許文献１の非接触電力伝送システムでは、同文献の図７（Ａ）から図９（Ａ）に示すように、第２受電電極（同文献の受電電極Ｅ４）が、互いに逆位相となる第１送電電極（同文献の送電電極Ｅ１）と第２送電電極（同文献の送電電極Ｅ２）との双方と対向するため、電力伝送効率が低下する懸念がある。 However, in the non-contact power transmission system of Patent Document 1, as shown in FIGS. 7A to 9A of the same document, the second power receiving electrode (the power receiving electrode E4 of the same document) has an opposite phase to each other. Since it faces both the first power transmission electrode (the power transmission electrode E1 of the same document) and the second power transmission electrode (the power transmission electrode E2 of the same document), there is a concern that the power transmission efficiency is lowered.

　本発明は、送電装置に対する受電装置の高い配置の自由度と、送電装置から受電装置への高い電力伝送効率と、を両立させることが可能な構造の非接触電力伝送システム、受電装置及び送電装置を提供するものである。 The present invention relates to a non-contact power transmission system, a power receiving device, and a power transmitting device having a structure capable of achieving both a high degree of freedom of arrangement of the power receiving device with respect to the power transmitting device and high power transmission efficiency from the power transmitting device to the power receiving device. Is to provide.

　本発明によれば、交流電源と、それぞれ前記交流電源と電気的に接続されているとともに送電面に沿って配置されている複数の送電電極と、を有する送電装置と、
　前記送電面に重ねて配置される受電面に沿って配置されていて前記送電電極と電界結合される複数の受電電極を有し、前記送電装置から非接触で電力供給を受ける受電装置と、
　を備える非接触電力伝送システムであって、
　前記複数の送電電極には、互いに逆位相となる複数の第１送電電極と複数の第２送電電極とが含まれ、
　前記受電面が前記送電面に重ねて配置されている状態において、前記送電面と前記受電面との相対的な位置及び相対的な向きにかかわらず、（１）前記複数の受電電極のうち１つ以上の受電電極が前記第１送電電極と重なるとともに他の１つ以上の受電電極が前記第２送電電極と重なり、且つ、（２）前記送電電極と重なるいずれの受電電極も前記第１送電電極又は前記第２送電電極の一方にのみ重なる、という条件を満たし得るように、前記複数の送電電極と前記複数の受電電極とが配置されている非接触電力伝送システムが提供される。 According to the present invention, a power transmission device having an AC power source and a plurality of power transmission electrodes that are electrically connected to the AC power source and arranged along a power transmission surface, respectively,
A power receiving device that has a plurality of power receiving electrodes that are arranged along a power receiving surface that is placed over the power transmitting surface and that is electrically coupled to the power transmitting electrode, and that receives power from the power transmitting device in a contactless manner;
A non-contact power transmission system comprising:
The plurality of power transmission electrodes include a plurality of first power transmission electrodes and a plurality of second power transmission electrodes that are in opposite phases to each other,
Regardless of the relative position and relative orientation of the power transmission surface and the power reception surface in a state where the power reception surface is disposed so as to overlap the power transmission surface, (1) one of the plurality of power reception electrodes One or more power receiving electrodes overlap with the first power transmitting electrode, another one or more power receiving electrodes overlap with the second power transmitting electrode, and (2) any power receiving electrode overlapping with the power transmitting electrode is the first power transmitting. Provided is a non-contact power transmission system in which the plurality of power transmission electrodes and the plurality of power reception electrodes are arranged so as to satisfy a condition that only one of the electrode and the second power transmission electrode overlaps.

　また、本発明によれば、交流電源と、それぞれ前記交流電源と電気的に接続されているとともに送電面に沿って配置されている複数の送電電極と、を有する送電装置と、
　前記送電面に重ねて配置される受電面に沿って配置されていて前記送電電極と電界結合される複数の受電電極を有し、前記送電装置から非接触で電力供給を受ける受電装置と、
　を備える非接触電力伝送システムであって、
　前記複数の送電電極には、互いに逆位相となる第１送電電極と第２送電電極とが含まれ、
　前記複数の送電電極は格子状に配置されており、
　前記第１送電電極と前記第２送電電極とが交互に配置されており、
　前記複数の送電電極のうち隣り合う送電電極間の間隙が、前記受電電極の外径よりも大きく、
　前記複数の受電電極は格子状に配置されており、
　前記複数の受電電極のうち隣り合う受電電極間の間隙が、前記送電電極の外径よりも小さい非接触電力伝送システムが提供される。 Further, according to the present invention, a power transmission device having an AC power source and a plurality of power transmission electrodes that are electrically connected to the AC power source and arranged along a power transmission surface, respectively.
A power receiving device that has a plurality of power receiving electrodes that are arranged along a power receiving surface that is placed over the power transmitting surface and that is electrically coupled to the power transmitting electrode, and that receives power from the power transmitting device in a contactless manner;
A non-contact power transmission system comprising:
The plurality of power transmission electrodes include a first power transmission electrode and a second power transmission electrode that are in opposite phases to each other,
The plurality of power transmission electrodes are arranged in a grid pattern,
The first power transmission electrode and the second power transmission electrode are alternately arranged,
The gap between adjacent power transmission electrodes among the plurality of power transmission electrodes is larger than the outer diameter of the power reception electrode,
The plurality of power receiving electrodes are arranged in a grid pattern,
A non-contact power transmission system in which a gap between adjacent power receiving electrodes among the plurality of power receiving electrodes is smaller than an outer diameter of the power transmitting electrode is provided.

　また、本発明によれば、本発明の非接触電力伝送システムにおける送電装置が提供される。 Moreover, according to the present invention, a power transmission device in the non-contact power transmission system of the present invention is provided.

　また、本発明によれば、本発明の非接触電力伝送システムにおける受電装置が提供される。 Moreover, according to the present invention, a power receiving device in the non-contact power transmission system of the present invention is provided.

　本発明によれば、送電装置に対して受電装置を高い自由度で配置して送電装置から受電装置に電力を伝送することと、送電装置から受電装置への高い電力伝送効率と、を両立させ得ることが可能となる。 According to the present invention, the power receiving device is arranged with a high degree of freedom with respect to the power transmitting device and power is transmitted from the power transmitting device to the power receiving device, and the high power transmission efficiency from the power transmitting device to the power receiving device is compatible. Can be obtained.

図１（ａ）は第１実施形態に係る非接触電力伝送システムの受電装置を示す模式的な斜視図であり、図１（ｂ）は第１実施形態に係る非接触電力伝送システムの送電装置を示す模式的な斜視図である。FIG. 1A is a schematic perspective view showing a power receiving device of the non-contact power transmission system according to the first embodiment, and FIG. 1B is a power transmission device of the non-contact power transmission system according to the first embodiment. It is a typical perspective view which shows this. 第１実施形態に係る非接触電力伝送システムの受電装置における受電電極の平面的な配置を説明するための平面図である。It is a top view for demonstrating planar arrangement | positioning of the receiving electrode in the receiving device of the non-contact electric power transmission system which concerns on 1st Embodiment. 第１実施形態に係る非接触電力伝送システムの送電装置における送電電極の平面的な配置を説明するための平面図である。It is a top view for demonstrating planar arrangement | positioning of the power transmission electrode in the power transmission apparatus of the non-contact electric power transmission system which concerns on 1st Embodiment. 第１実施形態に係る非接触電力伝送システムの回路構成を示す図である。It is a figure which shows the circuit structure of the non-contact electric power transmission system which concerns on 1st Embodiment. 第１実施形態に係る非接触電力伝送システムの送電装置に対する受電装置の配置の一例を示す模式的な平面図である。It is a typical top view which shows an example of arrangement | positioning of the power receiving apparatus with respect to the power transmission apparatus of the non-contact electric power transmission system which concerns on 1st Embodiment. 第１実施形態に係る非接触電力伝送システムの送電装置に対する受電装置の配置の他の一例を示す模式的な平面図である。It is a typical top view which shows another example of arrangement | positioning of the power receiving apparatus with respect to the power transmission apparatus of the non-contact electric power transmission system which concerns on 1st Embodiment. 第１実施形態に係る非接触電力伝送システムの送電装置に対する受電装置の配置の更に他の一例を示す模式的な平面図である。It is a typical top view which shows another example of arrangement | positioning of the power receiving apparatus with respect to the power transmission apparatus of the non-contact electric power transmission system which concerns on 1st Embodiment. 第１実施形態に係る非接触電力伝送システムの送電装置に対する受電装置の配置の更に他の一例を示す模式的な平面図である。It is a typical top view which shows another example of arrangement | positioning of the power receiving apparatus with respect to the power transmission apparatus of the non-contact electric power transmission system which concerns on 1st Embodiment. 第２実施形態に係る非接触電力伝送システムの受電装置における受電電極の平面的な配置を説明するための平面図である。It is a top view for demonstrating planar arrangement | positioning of the receiving electrode in the receiving device of the non-contact electric power transmission system which concerns on 2nd Embodiment. 第２実施形態に係る非接触電力伝送システムの送電装置に対する受電装置の配置の一例を示す模式的な平面図である。It is a typical top view which shows an example of arrangement | positioning of the power receiving apparatus with respect to the power transmission apparatus of the non-contact electric power transmission system which concerns on 2nd Embodiment.

　以下、本発明の実施形態について、図面を用いて説明する。なお、すべての図面において、同様の構成要素には同一の符号を付し、適宜に説明を省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

　〔第１実施形態〕
　先ず、図１から図８を用いて第１実施形態を説明する。
　本実施形態に係る非接触電力伝送システム１００は、交流電源３１（図４）と、それぞれ交流電源３１と電気的に接続されているとともに送電面Ａ２（図１（ｂ））に沿って配置されている複数の送電電極（第１送電電極２１、第２送電電極２２）とを有する送電装置２０と、送電面Ａ２に重ねて配置される受電面Ａ１（図１（ａ））に沿って配置されていて送電電極と電界結合される複数の受電電極１１を有し送電装置２０から非接触で電力供給を受ける受電装置１０と、を備える非接触電力伝送システム１００である。
　複数の送電電極には、互いに逆位相となる複数の第１送電電極２１と複数の第２送電電極２２とが含まれている。
　受電面Ａ１が送電面Ａ２に重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、（１）複数の受電電極１１のうち１つ以上の受電電極１１が第１送電電極２１と重なるとともに他の１つ以上の受電電極１１が第２送電電極２２と重なり、且つ、（２）送電電極と重なるいずれの受電電極１１も第１送電電極２１又は第２送電電極２２の一方にのみ重なる、という条件を満たし得るように、複数の送電電極と複数の受電電極１１とが配置されている。 [First Embodiment]
First, the first embodiment will be described with reference to FIGS.
The non-contact power transmission system 100 according to the present embodiment is arranged along the power transmission surface A2 (FIG. 1B) while being electrically connected to the AC power source 31 (FIG. 4) and the AC power source 31, respectively. The power transmission device 20 having a plurality of power transmission electrodes (the first power transmission electrode 21 and the second power transmission electrode 22), and the power receiving surface A1 (FIG. 1A) disposed so as to overlap the power transmission surface A2. The non-contact power transmission system 100 includes a power receiving device 10 that has a plurality of power receiving electrodes 11 that are electrically coupled to the power transmitting electrode and receives power supply from the power transmitting device 20 in a non-contact manner.
The plurality of power transmission electrodes include a plurality of first power transmission electrodes 21 and a plurality of second power transmission electrodes 22 that are in opposite phases to each other.
Regardless of the relative position and relative orientation of the power transmission surface A2 and the power reception surface A1 in the state where the power reception surface A1 is disposed so as to overlap the power transmission surface A2, (1) one of the plurality of power reception electrodes 11 One or more power receiving electrodes 11 overlap the first power transmitting electrode 21 and the other one or more power receiving electrodes 11 overlap the second power transmitting electrode 22, and (2) any power receiving electrode 11 overlapping the power transmitting electrode is the first. A plurality of power transmission electrodes and a plurality of power reception electrodes 11 are arranged so as to satisfy the condition that only one of the power transmission electrode 21 and the second power transmission electrode 22 overlaps.

　ここで、図１（ａ）及び図２に二点鎖線で示される包絡線Ｅ１は、受電装置１０が有する複数の受電電極１１の配置領域を最短距離で包絡する包絡線である。受電面Ａ１は、この包絡線Ｅ１に囲まれた内側領域である。
　図１（ｂ）及び図５に二点鎖線で示される包絡線Ｅ２は、送電装置２０が有する複数の送電電極の配置領域を最短距離で包絡する包絡線である。送電面Ａ２は、この包絡線Ｅ２に囲まれた内側領域である。
　本発明において、「受電面Ａ１が送電面Ａ２に重ねて配置されている状態」とは、受電面Ａ１の少なくとも一部分と送電面Ａ２の少なくとも一部分とが重なっている（対向している）状態を意味する。この状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たし得るように、複数の送電電極と複数の受電電極１１とが配置されている。 Here, an envelope E1 indicated by a two-dot chain line in FIGS. 1A and 2 is an envelope that envelopes an arrangement region of the plurality of power receiving electrodes 11 included in the power receiving device 10 with the shortest distance. The power receiving surface A1 is an inner region surrounded by the envelope E1.
An envelope E2 indicated by a two-dot chain line in FIG. 1B and FIG. 5 is an envelope that envelopes the arrangement region of the plurality of power transmission electrodes included in the power transmission device 20 with the shortest distance. The power transmission surface A2 is an inner region surrounded by the envelope E2.
In the present invention, “the state in which the power receiving surface A1 is disposed so as to overlap the power transmitting surface A2” means a state in which at least a part of the power receiving surface A1 and at least a part of the power transmitting surface A2 overlap (oppose). means. In this state, regardless of the relative positions and relative orientations of the power transmission surface A2 and the power reception surface A1, a plurality of power transmission electrodes and a plurality of power receptions can be satisfied so that the conditions (1) and (2) can be satisfied. An electrode 11 is disposed.

　本実施形態によれば、受電面Ａ１が送電面Ａ２に重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、送電装置２０から受電装置１０へ良好な伝送効率で電力を伝送し得るようにできる。
　つまり、送電装置２０に対する受電装置１０の高い配置の自由度と、送電装置２０から受電装置１０への高い電力伝送効率と、を両立させ得ることができる。 According to the present embodiment, in a state where the power receiving surface A1 is disposed so as to overlap the power transmitting surface A2, the power transmitting device 20 is independent of the relative position and relative direction between the power transmitting surface A2 and the power receiving surface A1. Electric power can be transmitted to the power receiving apparatus 10 with good transmission efficiency.
In other words, a high degree of freedom of arrangement of the power receiving device 10 with respect to the power transmitting device 20 and high power transmission efficiency from the power transmitting device 20 to the power receiving device 10 can be achieved.

図１（ａ）に示すように、受電装置１０は、例えば、筐体１３を有し、この筐体１３が有する１つの平坦な外面が受電側対向面１５となっている。複数の受電電極１１は、受電側対向面１５に沿って配置されている。したがって、受電面Ａ１は、受電側対向面１５に沿って配置されている。複数の受電電極１１は、例えば、筐体１３内に配置されている。筐体１３の形状は特に限定されないが、本実施形態の場合、筐体１３は扁平な直方体形状となっており、平面視矩形状に形成されている。 As illustrated in FIG. 1A, the power receiving device 10 includes, for example, a housing 13, and one flat outer surface of the housing 13 is a power receiving side facing surface 15. The plurality of power receiving electrodes 11 are arranged along the power receiving side facing surface 15. Therefore, the power receiving surface A 1 is disposed along the power receiving side facing surface 15. The plurality of power receiving electrodes 11 are arranged in the housing 13, for example. Although the shape of the housing | casing 13 is not specifically limited, In the case of this embodiment, the housing | casing 13 becomes a flat rectangular parallelepiped shape, and is formed in planar view rectangular shape.

図１（ｂ）に示すように、送電装置２０は、例えば、筐体２３を有し、この筐体２３が有する１つの平坦な外面が送電側対向面２５となっている。複数の送電電極は、送電側対向面２５に沿って配置されている。したがって、送電面Ａ２は、送電側対向面２５に沿って配置されている。複数の送電電極は、例えば、筐体２３内に配置されている。筐体２３の形状は特に限定されないが、本実施形態の場合、筐体２３は扁平な直方体形状となっており、平面視矩形状に形成されている。 As illustrated in FIG. 1B, the power transmission device 20 includes, for example, a housing 23, and one flat outer surface of the housing 23 is a power transmission side facing surface 25. The plurality of power transmission electrodes are arranged along the power transmission side facing surface 25. Therefore, the power transmission surface A 2 is disposed along the power transmission side facing surface 25. The plurality of power transmission electrodes are arranged in the housing 23, for example. Although the shape of the housing | casing 23 is not specifically limited, In the case of this embodiment, the housing | casing 23 becomes a flat rectangular parallelepiped shape, and is formed in planar view rectangular shape.

　本発明において、受電面Ａ１と送電面Ａ２とは、どちらの面積が広くてもよいし、受電面Ａ１と送電面Ａ２とは面積が互いに等しくてもよい。
　送電面Ａ２の面積が受電面Ａ１の面積よりも広い場合、受電面Ａ１の全面が送電面Ａ２と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。
　また、送電面Ａ２の面積が受電面Ａ１の面積よりも狭い場合、送電面Ａ２の全面が受電面Ａ１と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。 In the present invention, the power receiving surface A1 and the power transmission surface A2 may have either large area, and the power receiving surface A1 and the power transmission surface A2 may have the same area.
When the area of the power transmission surface A2 is larger than the area of the power reception surface A1, the relative positions and relative positions of the power transmission surface A2 and the power reception surface A1 in a state where the entire surface of the power reception surface A1 is disposed so as to overlap the power transmission surface A2. It is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2) regardless of the specific orientation.
In addition, when the area of the power transmission surface A2 is smaller than the area of the power reception surface A1, the relative positions of the power transmission surface A2 and the power reception surface A1 in a state where the entire surface of the power transmission surface A2 is disposed so as to overlap the power reception surface A1. Regardless of the relative orientation, it is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2).

本発明において、受電側対向面１５と送電側対向面２５とは、どちらの面積が広くてもよいし、受電側対向面１５と送電側対向面２５とは面積が互いに等しくてもよい。
　送電側対向面２５の面積が受電側対向面１５の面積よりも広い場合、受電側対向面１５の全面が送電側対向面２５と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。
　また、送電側対向面２５の面積が受電側対向面１５の面積よりも狭い場合、送電側対向面２５の全面が受電側対向面１５と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。 In the present invention, the power receiving side facing surface 15 and the power transmitting side facing surface 25 may have either large area, and the power receiving side facing surface 15 and the power transmitting side facing surface 25 may have the same area.
When the area of the power transmission side facing surface 25 is larger than the area of the power receiving side facing surface 15, the power transmission surface A 2 and the power receiving surface A 1 in a state where the entire surface of the power receiving side facing surface 15 is arranged to overlap the power transmission side facing surface 25. It is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the above conditions (1) and (2) regardless of the relative position and the relative orientation.
Further, when the area of the power transmission side facing surface 25 is smaller than the area of the power receiving side facing surface 15, the power transmission surface A 2 and the power receiving surface are received in a state where the entire surface of the power transmission side facing surface 25 is arranged so as to overlap the power receiving side facing surface 15. Regardless of the relative position and relative orientation with respect to the surface A1, the plurality of power transmission electrodes and the plurality of power reception electrodes 11 may be arranged so as to satisfy the conditions (1) and (2). preferable.

　本発明において、受電面Ａ１と送電側対向面２５とは、どちらの面積が広くてもよいし、受電面Ａ１と送電側対向面２５とは面積が互いに等しくてもよい。
　送電側対向面２５の面積が受電面Ａ１の面積よりも広い場合、受電面Ａ１の全面が送電側対向面２５と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。
　また、送電側対向面２５の面積が受電面Ａ１の面積よりも狭い場合、送電側対向面２５の全面が受電面Ａ１と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。 In the present invention, the power receiving surface A1 and the power transmission side facing surface 25 may have either large area, and the power receiving surface A1 and the power transmission side facing surface 25 may have the same area.
When the area of the power transmission side facing surface 25 is larger than the area of the power receiving surface A1, the power transmission surface A2 and the power receiving surface A1 are relative to each other in a state where the entire surface of the power receiving surface A1 is disposed so as to overlap the power transmission side facing surface 25. Regardless of the position and relative orientation, it is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2).
Further, when the area of the power transmission side facing surface 25 is smaller than the area of the power receiving surface A1, the power transmission surface A2 and the power receiving surface A1 are arranged in a state where the entire surface of the power transmission side facing surface 25 is disposed so as to overlap the power receiving surface A1. Regardless of the relative position and the relative orientation, it is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2).

　本発明において、受電側対向面１５と送電面Ａ２とは、どちらの面積が広くてもよいし、受電側対向面１５と送電面Ａ２とは面積が互いに等しくてもよい。
　送電面Ａ２の面積が受電側対向面１５の面積よりも広い場合、受電側対向面１５の全面が送電面Ａ２と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。
　また、送電面Ａ２の面積が受電側対向面１５の面積よりも狭い場合、送電面Ａ２の全面が受電側対向面１５と重ねて配置されている状態において、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されていることが好ましい。 In the present invention, the power receiving side facing surface 15 and the power transmission surface A2 may have either large area, and the power receiving side facing surface 15 and the power transmission surface A2 may have the same area.
When the area of the power transmission surface A2 is larger than the area of the power reception side facing surface 15, the power transmission surface A2 and the power reception surface A1 are relatively in a state where the entire surface of the power reception side facing surface 15 is arranged so as to overlap the power transmission surface A2. Regardless of the position and relative orientation, it is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2).
Further, when the area of the power transmission surface A2 is smaller than the area of the power receiving side facing surface 15, in a state where the entire surface of the power transmitting surface A2 is disposed so as to overlap the power receiving side facing surface 15, between the power transmitting surface A2 and the power receiving surface A1. Regardless of the relative position and the relative orientation, it is preferable that the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2).

　これらの条件を満たすような構成を実現するため、受電装置１０における受電電極１１の数、送電装置２０における送電電極の数、受電側対向面１５の面積、及び、送電側対向面２５の面積を、それぞれ設定することができる。 In order to realize a configuration that satisfies these conditions, the number of power receiving electrodes 11 in the power receiving device 10, the number of power transmitting electrodes in the power transmitting device 20, the area of the power receiving side facing surface 15, and the area of the power transmitting side facing surface 25 are determined. , Each can be set.

　本実施形態の場合、送電面Ａ２の面積が受電面Ａ１の面積よりも広く、少なくとも、受電面Ａ１の全面が送電面Ａ２と重ねて配置されている状態では、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されている。更に、受電面Ａ１の一部分が送電面Ａ２からはみ出ていても、上記（１）及び（２）の条件を満たすような配置（送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向き）も存在する。 In the case of this embodiment, in the state where the area of the power transmission surface A2 is larger than the area of the power reception surface A1, and at least the entire surface of the power reception surface A1 is arranged overlapping the power transmission surface A2, the power transmission surface A2 and the power reception surface A1 Regardless of the relative position and the relative orientation, the plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2). Further, even if a part of the power receiving surface A1 protrudes from the power transmitting surface A2, the arrangement (the relative position and relative position between the power transmitting surface A2 and the power receiving surface A1) satisfying the above conditions (1) and (2) is satisfied. Orientation) also exists.

　本実施形態の場合、送電側対向面２５の面積が受電側対向面１５の面積よりも広く、少なくとも、受電側対向面１５の全面が送電側対向面２５と重ねて配置されている状態では、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されている。更に、受電側対向面１５の一部分が送電側対向面２５からはみ出ていても、上記（１）及び（２）の条件を満たすような配置（送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向き）も存在する。 In the case of this embodiment, the area of the power transmission side facing surface 25 is larger than the area of the power receiving side facing surface 15, and at least the entire surface of the power receiving side facing surface 15 is arranged so as to overlap the power transmission side facing surface 25. Regardless of the relative position and relative orientation of the power transmission surface A2 and the power reception surface A1, a plurality of power transmission electrodes and a plurality of power reception electrodes 11 are arranged so as to satisfy the conditions (1) and (2). Has been. Furthermore, even if a part of the power receiving side facing surface 15 protrudes from the power transmitting side facing surface 25, an arrangement (relative position between the power transmitting surface A2 and the power receiving surface A1) that satisfies the above conditions (1) and (2) is satisfied. And relative orientation).

　本実施形態の場合、送電側対向面２５の面積が受電面Ａ１の面積よりも広く、少なくとも、受電面Ａ１の全面が送電側対向面２５と重ねて配置されている状態では、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されている。更に、受電面Ａ１の一部分が送電側対向面２５からはみ出ていても、上記（１）及び（２）の条件を満たすような配置（送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向き）も存在する。 In the case of this embodiment, in the state where the area of the power transmission side facing surface 25 is larger than the area of the power receiving surface A1 and at least the entire surface of the power receiving surface A1 is disposed so as to overlap the power transmission side facing surface 25, Regardless of the relative position and relative orientation with respect to the power receiving surface A1, the plurality of power transmitting electrodes and the plurality of power receiving electrodes 11 are arranged so as to satisfy the conditions (1) and (2). Furthermore, even if a part of the power receiving surface A1 protrudes from the power transmission side facing surface 25, an arrangement that satisfies the above conditions (1) and (2) (relative position and relative relationship between the power transmitting surface A2 and the power receiving surface A1) Direction).

　本実施形態の場合、送電面Ａ２の面積が受電側対向面１５の面積よりも広く、少なくとも、受電側対向面１５の全面が送電面Ａ２と重ねて配置されている状態では、送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向きにかかわらず、上記（１）及び（２）の条件を満たすように、複数の送電電極と複数の受電電極１１とが配置されている。更に、受電側対向面１５の一部分が送電面Ａ２からはみ出ていても、上記（１）及び（２）の条件を満たすような配置（送電面Ａ２と受電面Ａ１との相対的な位置及び相対的な向き）も存在する。 In the case of the present embodiment, the area of the power transmission surface A2 is larger than the area of the power reception side facing surface 15, and at least in a state where the entire surface of the power reception side facing surface 15 is arranged to overlap the power transmission surface A2, Regardless of the relative position and relative orientation with respect to the power receiving surface A1, the plurality of power transmitting electrodes and the plurality of power receiving electrodes 11 are arranged so as to satisfy the conditions (1) and (2). Furthermore, even if a part of the power receiving side facing surface 15 protrudes from the power transmission surface A2, the arrangement (relative position and relative of the power transmission surface A2 and the power receiving surface A1) that satisfies the above conditions (1) and (2) is satisfied. Direction).

　本実施形態の場合、図５等に示すように、受電側対向面１５と送電側対向面２５とを対向させて（受電側対向面１５と送電側対向面２５とを互いに突き合わせて）送電装置２０に受電装置１０を重ねたときに、平面視において筐体１３の外形線が筐体２３の外形線の内側に収まるように、筐体１３及び筐体２３の寸法及び形状が設定されている。 In the case of the present embodiment, as shown in FIG. 5 and the like, the power receiving side facing surface 15 and the power transmitting side facing surface 25 face each other (the power receiving side facing surface 15 and the power transmitting side facing surface 25 abut each other). The dimensions and shapes of the housing 13 and the housing 23 are set so that the outline of the housing 13 is within the outline of the housing 23 in plan view when the power receiving device 10 is stacked on the power supply 20. .

受電装置１０において、複数の受電電極１１は、互いに同一平面上に配置されていることが好ましい。受電面Ａ１は、受電側対向面１５に対して平行に配置されていることが好ましい。
　送電装置２０において、複数の送電電極は、互いに同一平面上に配置されていることが好ましい。送電面Ａ２は、送電側対向面２５に対して平行に配置されていることが好ましい。 In the power receiving device 10, the plurality of power receiving electrodes 11 are preferably arranged on the same plane. The power receiving surface A1 is preferably disposed in parallel to the power receiving side facing surface 15.
In the power transmission device 20, the plurality of power transmission electrodes are preferably arranged on the same plane. The power transmission surface A 2 is preferably arranged in parallel to the power transmission side facing surface 25.

　本実施形態の場合、図２に示すように、複数の受電電極１１は、格子状に配置されている。より詳細には、複数の受電電極１１は、例えば、正方格子状に配置されている。
　受電装置１０が有する受電電極１１の数は特に限定されないが、本実施形態の場合、受電装置１０は、例えば、２行４列の合計８つの受電電極１１を有する。
　これら受電電極１１に、便宜的に、図２に示すように、Ｃ１、Ｃ２、Ｃ３、Ｃ４、Ｃ５、Ｃ６、Ｃ７、Ｃ８の呼称をそれぞれ与える。
　本実施形態の場合、複数の受電電極１１の各々は、円形状に形成されている。
　また、各受電電極１１の寸法は、互いに等しい。 In the case of the present embodiment, as shown in FIG. 2, the plurality of power receiving electrodes 11 are arranged in a grid pattern. More specifically, the plurality of power receiving electrodes 11 are arranged in a square lattice, for example.
The number of power receiving electrodes 11 included in the power receiving device 10 is not particularly limited, but in the case of the present embodiment, the power receiving device 10 includes, for example, a total of eight power receiving electrodes 11 in 2 rows and 4 columns.
For convenience, as shown in FIG. 2, the names of C1, C2, C3, C4, C5, C6, C7, and C8 are given to the power receiving electrodes 11, respectively.
In the case of this embodiment, each of the plurality of power receiving electrodes 11 is formed in a circular shape.
Moreover, the dimensions of the power receiving electrodes 11 are equal to each other.

　本実施形態の場合、第１送電電極２１と第２送電電極２２とが交互に配置されている。ここで、第１送電電極２１と第２送電電極２２とが交互に配置されているとは、第１送電電極２１と第２送電電極２２とが第１方向（例えば図３における左右方向）において周期的に繰り返し配置されているとともに、第１方向に対して直交する第２方向（例えば図３における上下方向）においても周期的に繰り返し配置されていることを意味する。
　本実施形態の場合、図３及び図５に示すように、上記第１方向において隣り合う送電電極が互いに異なる位相になり、且つ、上記第２方向において隣り合う送電電極が互いに異なる位相になるように、複数の送電電極が配置されている。
　ただし、本発明において、第１送電電極２１と第２送電電極２２とが交互に配置されているとは、必ずしも、隣り合う送電電極が互いに異なる位相になることに限定されず、図５等に示される個々の送電電極（第１送電電極２１や第２送電電極２２）が同位相の複数の電極に細分化されているような構成であってもよい。 In the case of this embodiment, the 1st power transmission electrode 21 and the 2nd power transmission electrode 22 are arrange | positioned alternately. Here, the 1st power transmission electrode 21 and the 2nd power transmission electrode 22 are arrange | positioned alternately means that the 1st power transmission electrode 21 and the 2nd power transmission electrode 22 are in a 1st direction (for example, the left-right direction in FIG. 3). This means that they are periodically and repeatedly arranged, and are also periodically and repeatedly arranged in a second direction orthogonal to the first direction (for example, the vertical direction in FIG. 3).
In the case of the present embodiment, as shown in FIGS. 3 and 5, adjacent power transmission electrodes in the first direction have different phases, and adjacent power transmission electrodes in the second direction have different phases. In addition, a plurality of power transmission electrodes are arranged.
However, in the present invention, the fact that the first power transmission electrodes 21 and the second power transmission electrodes 22 are alternately arranged is not necessarily limited to the fact that adjacent power transmission electrodes are in different phases, as shown in FIG. The individual power transmission electrodes shown (the first power transmission electrode 21 and the second power transmission electrode 22) may be subdivided into a plurality of electrodes having the same phase.

　より詳細には、複数の送電電極は格子状に配置されている。より詳細には、複数の受電電極１１は、例えば、正方格子状に配置されている。
　複数の送電電極の各々は、正方形状に形成されている。より詳細には、複数の送電電極の各々は角丸の正方形状に形成されている。また、各送電電極は、互いに同じ向きに配置されている。すなわち、各送電電極の対応する辺どうしが互いに平行に配置されている。
　また、各送電電極の寸法は、互いに等しい。
　なお、図３、図５から図８においては、便宜的に、各第１送電電極２１の電位がＬｏｗ、各第２送電電極２２の電位がＨｉｇｈとなった状態を示しているものとし、各第１送電電極２１にはＬの文字を付しており、各第２送電電極２２にはＨの文字を付している。 More specifically, the plurality of power transmission electrodes are arranged in a grid pattern. More specifically, the plurality of power receiving electrodes 11 are arranged in a square lattice, for example.
Each of the plurality of power transmission electrodes is formed in a square shape. More specifically, each of the plurality of power transmission electrodes is formed in a rounded square shape. Moreover, each power transmission electrode is arrange | positioned in the mutually same direction. That is, the corresponding sides of the power transmission electrodes are arranged in parallel to each other.
Moreover, the dimension of each power transmission electrode is mutually equal.
3 and 5 to 8, for convenience, it is assumed that each first power transmission electrode 21 has a low potential and each second power transmission electrode 22 has a high potential. The first power transmission electrode 21 is marked with a letter L, and each second power transmission electrode 22 is marked with a letter H.

ここで、複数の送電電極のうち隣り合う送電電極間の間隙Ｄ２（図３）が、受電電極１１の外径Ｒ１（図２）よりも大きい。ここで、本発明において、受電電極１１の形状は円形に限らない。ここでいう受電電極１１の外径Ｒ１は、一の受電電極１１の中心を通り当該受電電極１１の外周上の２点を繋ぐ線分の長さ（差し渡しの長さ）のうち最大のもの（最大外径）である。
　また、複数の受電電極１１のうち隣り合う受電電極１１間の間隙Ｄ１（図２）が、送電電極の外径Ｒ２（図３）よりも小さい。ここでいう送電電極の外径Ｒ２は、一の送電電極の中心を通り当該送電電極の外周上の２点を繋ぐ線分の長さ（差し渡しの長さ）のうち最小のもの（最小外径）である。なお、送電電極の最大外径Ｒ３、すなわち一の送電電極の中心を通り当該送電電極の外周上の２点を繋ぐ線分の長さのうち最大のものは、隣り合う受電電極１１間の間隙Ｄ１よりも大きい。 Here, a gap D 2 (FIG. 3) between adjacent power transmission electrodes among the plurality of power transmission electrodes is larger than the outer diameter R 1 (FIG. 2) of the power reception electrode 11. Here, in the present invention, the shape of the power receiving electrode 11 is not limited to a circle. The outer diameter R 1 of the power receiving electrode 11 here is the largest of the lengths of the line segments (passing lengths) connecting the two points on the outer periphery of the power receiving electrode 11 through the center of the one power receiving electrode 11 ( Maximum outer diameter).
Moreover, the gap | interval D1 (FIG. 2) between the adjacent receiving electrodes 11 among the some receiving electrodes 11 is smaller than the outer diameter R2 (FIG. 3) of a power transmission electrode. The outer diameter R2 of the power transmission electrode here is the smallest (minimum outer diameter) of the length of the line segment (passing length) connecting two points on the outer periphery of the power transmission electrode through the center of one power transmission electrode. ). The maximum outer diameter R3 of the power transmission electrode, that is, the maximum length of the line segment that passes through the center of one power transmission electrode and connects two points on the outer periphery of the power transmission electrode is the gap between adjacent power reception electrodes 11 Greater than D1.

　本実施形態に係る非接触電力伝送システム１００は、以下のように定義することもできる。
　すなわち、本実施形態に係る非接触電力伝送システム１００は、交流電源３１と、それぞれ交流電源３１と電気的に接続されているとともに送電面Ａ２に沿って配置されている複数の送電電極とを有する送電装置２０と、送電面Ａ２に重ねて配置される受電面Ａ１に沿って配置されていて送電電極と電界結合される複数の受電電極１１を有し送電装置２０から非接触で電力供給を受ける受電装置１０と、を備える非接触電力伝送システム１００であって、複数の送電電極には、互いに逆位相となる第１送電電極２１と第２送電電極２２とが含まれ、複数の送電電極は格子状に配置されており、第１送電電極２１と第２送電電極２２とが交互に配置されており、複数の送電電極のうち隣り合う送電電極間の間隙Ｄ２（図３）が受電電極１１の外径Ｒ１（図２）よりも大きく、複数の受電電極１１は格子状に配置されており、複数の受電電極１１のうち隣り合う受電電極１１間の間隙Ｄ１（図２）が、送電電極の外径Ｒ２（図３）よりも小さい。 The non-contact power transmission system 100 according to the present embodiment can also be defined as follows.
That is, the non-contact power transmission system 100 according to the present embodiment includes the AC power supply 31 and a plurality of power transmission electrodes that are electrically connected to the AC power supply 31 and are arranged along the power transmission surface A2. The power transmitting device 20 has a plurality of power receiving electrodes 11 that are arranged along the power receiving surface A1 that is disposed so as to overlap the power transmitting surface A2, and receives electric power supply from the power transmitting device 20 in a contactless manner. In the non-contact power transmission system 100 including the power receiving device 10, the plurality of power transmission electrodes include a first power transmission electrode 21 and a second power transmission electrode 22 that are in opposite phases to each other. It arrange | positions at the grid | lattice form, the 1st power transmission electrode 21 and the 2nd power transmission electrode 22 are arrange | positioned alternately, and the gap | interval D2 (FIG. 3) between adjacent power transmission electrodes among several power transmission electrodes is the power receiving electrode 11. Outside The plurality of power receiving electrodes 11 are larger than R1 (FIG. 2) and are arranged in a lattice shape, and the gap D1 (FIG. 2) between adjacent power receiving electrodes 11 among the plurality of power receiving electrodes 11 is the outer diameter of the power transmitting electrode. It is smaller than R2 (FIG. 3).

　受電電極１１及び送電電極の寸法及び配置の具体的な一例としては、例えば、受電電極１１の外径Ｒ１を９ｍｍとし、隣り合う受電電極１１間の間隙Ｄ１を６ｍｍとし、送電電極の外径Ｒ２を１０ｍｍとし、隣り合う送電電極間の間隙Ｄ２を１０ｍｍとすることが挙げられる。
　このため、本実施形態の場合、複数の受電電極１１の各々の外径Ｒ１が、複数の送電電極の外径Ｒ２よりも小さい。そして、複数の受電電極１１の各々の外径Ｒ１が、複数の送電電極の外径Ｒ２の半分以上である。 As a specific example of the dimensions and arrangement of the power receiving electrode 11 and the power transmitting electrode, for example, the outer diameter R1 of the power receiving electrode 11 is 9 mm, the gap D1 between the adjacent power receiving electrodes 11 is 6 mm, and the outer diameter R2 of the power transmitting electrode. Is 10 mm, and the gap D2 between adjacent power transmission electrodes is 10 mm.
For this reason, in the case of this embodiment, the outer diameter R1 of each of the plurality of power receiving electrodes 11 is smaller than the outer diameter R2 of the plurality of power transmitting electrodes. And each outer diameter R1 of the several receiving electrode 11 is more than half of outer diameter R2 of several power transmission electrode.

　図４に示すように、交流電源３１は、互いに逆位相となる第１交流出力端子３２と第２交流出力端子３３とを有する。交流電源３１は、単相でも三相でもよい。
　第１送電電極２１の各々は、個別の第１共振コイル３４を介して、第１交流出力端子３２と電気的に接続されている。すなわち、送電装置２０は、第１送電電極２１の各々と対応する第１共振コイル３４を備えており、各第１共振コイル３４の一端は第１交流出力端子３２に対して電気的に接続されており、各第１共振コイル３４の他端は対応する第１送電電極２１に対して電気的に接続されている。
　同様に、第２送電電極２２の各々は、個別の第２共振コイル３５を介して、第２交流出力端子３３と電気的に接続されている。すなわち、送電装置２０は、第２送電電極２２の各々と対応する第２共振コイル３５を備えており、各第２共振コイル３５の一端は第２交流出力端子３３に対して電気的に接続されており、各第２共振コイル３５の他端は対応する第２送電電極２２に対して電気的に接続されている。
　このため、各第１送電電極２１は常に互いに同位相となり、各第２送電電極２２は常に互いに同位相となり、第１送電電極２１と第２送電電極２２とは常に互いに逆位相になる。
　ここで、第１送電電極２１と、当該第１送電電極２１と対応する第１共振コイル３４とにより、第１ＬＣ共振要素が構成されている。第１ＬＣ共振要素は、当該第１ＬＣ共振要素に含まれる第１送電電極２１と受電電極１１とが重なったときに、ＬＣ共振回路の一部分を構成する。
　同様に、第２送電電極２２と、当該第２送電電極２２と対応する第２共振コイル３５とにより、第２ＬＣ共振要素が構成されている。第２ＬＣ共振要素は、当該第２ＬＣ共振要素に含まれる第２送電電極２２と受電電極１１とが重なったときに、ＬＣ共振回路の一部分を構成する。 As shown in FIG. 4, the AC power supply 31 includes a first AC output terminal 32 and a second AC output terminal 33 that are in opposite phases. The AC power supply 31 may be single-phase or three-phase.
Each of the first power transmission electrodes 21 is electrically connected to the first AC output terminal 32 via an individual first resonance coil 34. That is, the power transmission device 20 includes a first resonance coil 34 corresponding to each of the first power transmission electrodes 21, and one end of each first resonance coil 34 is electrically connected to the first AC output terminal 32. The other end of each first resonance coil 34 is electrically connected to the corresponding first power transmission electrode 21.
Similarly, each of the second power transmission electrodes 22 is electrically connected to the second AC output terminal 33 via an individual second resonance coil 35. That is, the power transmission device 20 includes a second resonance coil 35 corresponding to each of the second power transmission electrodes 22, and one end of each second resonance coil 35 is electrically connected to the second AC output terminal 33. The other end of each second resonance coil 35 is electrically connected to the corresponding second power transmission electrode 22.
Therefore, the first power transmission electrodes 21 are always in phase with each other, the second power transmission electrodes 22 are always in phase with each other, and the first power transmission electrode 21 and the second power transmission electrode 22 are always in opposite phases with each other.
Here, the first LC resonance element is configured by the first power transmission electrode 21 and the first resonance coil 34 corresponding to the first power transmission electrode 21. The first LC resonance element constitutes a part of the LC resonance circuit when the first power transmission electrode 21 and the power reception electrode 11 included in the first LC resonance element overlap each other.
Similarly, a second LC resonance element is configured by the second power transmission electrode 22 and the second resonance coil 35 corresponding to the second power transmission electrode 22. The second LC resonance element constitutes a part of the LC resonance circuit when the second power transmission electrode 22 and the power reception electrode 11 included in the second LC resonance element overlap each other.

　各第１ＬＣ共振要素の共振周波数は互いに等しく、各第２ＬＣ共振要素の共振周波数は互いに等しく、前記第１ＬＣ共振要素と前記第２ＬＣ共振要素との共振周波数が互いに等しい。
　これにより、重なり合った電極間の伝送効率を向上させることができる。
　第１ＬＣ共振要素の共振周波数とは、当該第１ＬＣ共振要素に含まれる第１送電電極２１と受電電極１１とが重なったときに構成されるＬＣ共振回路の共振周波数であり、第２ＬＣ共振要素の共振周波数とは、当該第２ＬＣ共振要素に含まれる第２送電電極２２と受電電極１１とが重なったときに構成されるＬＣ共振回路の共振周波数である。
　また、２つのＬＣ共振回路どうしの共振周波数が互いに等しいとは、一方のＬＣ共振回路を構成する送電電極と受電電極１１とが所定の重なり面積で重なったときの当該ＬＣ共振回路の共振周波数と、他方のＬＣ共振回路を構成する送電電極と受電電極１１とが上記所定の重なり面積で重なったときの当該ＬＣ共振回路の共振周波数と、が互いに等しいことを意味する。 The resonance frequencies of the first LC resonance elements are equal to each other, the resonance frequencies of the second LC resonance elements are equal to each other, and the resonance frequencies of the first LC resonance element and the second LC resonance element are equal to each other.
Thereby, the transmission efficiency between the overlapping electrodes can be improved.
The resonance frequency of the first LC resonance element is the resonance frequency of the LC resonance circuit configured when the first power transmission electrode 21 and the power reception electrode 11 included in the first LC resonance element overlap with each other. The resonance frequency is a resonance frequency of an LC resonance circuit configured when the second power transmission electrode 22 and the power reception electrode 11 included in the second LC resonance element overlap.
In addition, the resonance frequencies of the two LC resonance circuits are equal to each other, that is, the resonance frequency of the LC resonance circuit when the power transmission electrode and the power reception electrode 11 constituting one LC resonance circuit overlap each other with a predetermined overlapping area. This means that the resonance frequencies of the LC resonance circuit when the power transmission electrode and the power reception electrode 11 constituting the other LC resonance circuit overlap with each other with the predetermined overlap area are equal to each other.

　また、受電装置１０の受電電極１１と送電装置２０の送電電極との間には、高誘電率の絶縁板（例えば、樹脂板）が介在することが好ましい。例えば、筐体１３の受電側対向面１５、又は、筐体２３の送電側対向面２５が平板状の樹脂板により構成されていて、受電側対向面１５や送電側対向面２５がこの絶縁板を構成していてもよい。
　このような構成により、送電電極と受電電極１１との間の静電容量を増加させインピーダンスを低下させることができる。 Further, it is preferable that an insulating plate (for example, a resin plate) having a high dielectric constant is interposed between the power receiving electrode 11 of the power receiving device 10 and the power transmitting electrode of the power transmitting device 20. For example, the power receiving side facing surface 15 of the housing 13 or the power transmission side facing surface 25 of the housing 23 is made of a flat resin plate, and the power receiving side facing surface 15 and the power transmitting side facing surface 25 are the insulating plates. May be configured.
With such a configuration, the capacitance between the power transmission electrode and the power reception electrode 11 can be increased and the impedance can be decreased.

　図４に示すように、受電装置１０は、負荷６０とそれぞれ電気的に接続される第１受電出力端子４１と第２受電出力端子４２とを有する。
　受電電極１１の各々は、第１伝送線４３を介して第１受電出力端子４１と電気的に接続されているとともに、第２伝送線４４を介して第２受電出力端子４２と電気的に接続されている。
　第１伝送線４３には、第１整流素子として、例えば、第１ダイオード５１が挿入されている。これにより、第１伝送線４３において、電流が受電電極１１から第１受電出力端子４１側に一方向に流れるようになっている。すなわち、第１ダイオード５１は、アノードが受電電極１１側に、カソードが第１受電出力端子４１側に、それぞれ配置されている。
　第２伝送線４４には、第１整流素子と同方向に電流を整流する第２整流素子として、例えば、第２ダイオード５２が挿入されている。これにより、第２伝送線４４において、電流が第２受電出力端子４２から受電電極１１側に一方向に流れるようになっている。すなわち、第２ダイオード５２は、アノードが第２受電出力端子４２側に、カソードが受電電極１１側に、それぞれ配置されている。
　このように、受電装置１０は、第１伝送線４３、第２伝送線４４、複数の第１ダイオード５１及び複数の第２ダイオード５２を備えている。 As illustrated in FIG. 4, the power reception device 10 includes a first power reception output terminal 41 and a second power reception output terminal 42 that are electrically connected to the load 60.
Each of the power receiving electrodes 11 is electrically connected to the first power receiving output terminal 41 via the first transmission line 43 and electrically connected to the second power receiving output terminal 42 via the second transmission line 44. Has been.
For example, a first diode 51 is inserted in the first transmission line 43 as a first rectifying element. Thereby, in the 1st transmission line 43, an electric current flows in one direction from the receiving electrode 11 to the 1st receiving output terminal 41 side. That is, the first diode 51 has an anode disposed on the power receiving electrode 11 side and a cathode disposed on the first power receiving output terminal 41 side.
For example, a second diode 52 is inserted into the second transmission line 44 as a second rectifier that rectifies current in the same direction as the first rectifier. Thereby, in the 2nd transmission line 44, an electric current flows in one direction from the 2nd receiving power output terminal 42 to the receiving electrode 11 side. That is, the second diode 52 has an anode disposed on the second power receiving output terminal 42 side and a cathode disposed on the power receiving electrode 11 side.
As described above, the power receiving device 10 includes the first transmission line 43, the second transmission line 44, the plurality of first diodes 51, and the plurality of second diodes 52.

　ここで、第１伝送線４３は、個々の受電電極１１と対応して配置されていて各々の一端が対応する受電電極１１に対して電気的に接続されている複数の分枝線４３ａと、これら複数の分枝線４３ａの他端に対して一端が電気的に接続されている合流線４３ｂと、により構成されている。合流線４３ｂの他端が、第１受電出力端子４１に対して電気的に接続されている。各分枝線４３ａに、それぞれ第１ダイオード５１が挿入されている。
　同様に、第２伝送線４４は、個々の受電電極１１と対応して配置されていて各々の一端が対応する受電電極１１に対して電気的に接続されている複数の分枝線４４ａと、これら複数の分枝線４４ａの他端に対して一端が電気的に接続されている合流線４４ｂと、により構成されている。合流線４４ｂの他端が、第２受電出力端子４２に対して電気的に接続されている。各分枝線４４ａに、それぞれ第２ダイオード５２が挿入されている。 Here, the first transmission line 43 is arranged corresponding to each power receiving electrode 11, and a plurality of branch lines 43 a each having one end electrically connected to the corresponding power receiving electrode 11, The junction line 43b has one end electrically connected to the other end of the plurality of branch lines 43a. The other end of the merge line 43 b is electrically connected to the first power reception output terminal 41. A first diode 51 is inserted in each branch line 43a.
Similarly, the second transmission line 44 is arranged corresponding to each power receiving electrode 11, and a plurality of branch lines 44 a each having one end electrically connected to the corresponding power receiving electrode 11, The other end of these branch lines 44a is formed by a merge line 44b that is electrically connected at one end. The other end of the merge line 44 b is electrically connected to the second power receiving output terminal 42. A second diode 52 is inserted in each branch line 44a.

　受電装置１０は、更に、第１伝送線４３及び第２伝送線４４を流れる電流のリップルを低減する平滑素子を有する。この平滑素子は、例えば、コンデンサ５３、電解コンデンサ５４及び電解コンデンサ５５の３つのコンデンサを含んで構成されている。
　平滑素子は、第１伝送線４３における第１ダイオード５１（第１整流素子）と第１受電出力端子４１との間の部分と、第２伝送線４４における第２ダイオード５２（第２整流素子）と第２受電出力端子４２との間の部分と、に接続されている。
　より詳細には、平滑素子は、合流線４３ｂと合流線４４ｂとに接続されている。すなわち、コンデンサ５３、電解コンデンサ５４及び電解コンデンサ５５の各々の一端が合流線４３ｂに接続されており、コンデンサ５３、電解コンデンサ５４及び電解コンデンサ５５の各々の他端が合流線４４ｂに接続されている。 The power receiving apparatus 10 further includes a smoothing element that reduces a ripple of current flowing through the first transmission line 43 and the second transmission line 44. The smoothing element includes, for example, three capacitors, a capacitor 53, an electrolytic capacitor 54, and an electrolytic capacitor 55.
The smoothing element includes a portion between the first diode 51 (first rectifying element) and the first power receiving output terminal 41 in the first transmission line 43, and a second diode 52 (second rectifying element) in the second transmission line 44. And the second power receiving output terminal 42.
More specifically, the smoothing element is connected to the merge line 43b and the merge line 44b. That is, one end of each of the capacitor 53, the electrolytic capacitor 54, and the electrolytic capacitor 55 is connected to the merge line 43b, and the other end of each of the capacitor 53, the electrolytic capacitor 54, and the electrolytic capacitor 55 is connected to the merge line 44b. .

　受電装置１０は負荷６０を含んで構成されていてもよいし、受電装置１０の外部の構成であってもよい。後者の場合、負荷６０と電気的に接続されるインターフェースが第１受電出力端子４１及び第２受電出力端子４２を有する。
　負荷６０は、特に限定されないが、例えば、スマートフォンなどのような、充電可能な二次電池を有する端末装置であることが挙げられる。 The power receiving device 10 may be configured to include the load 60, or may be configured outside the power receiving device 10. In the latter case, the interface electrically connected to the load 60 includes a first power receiving output terminal 41 and a second power receiving output terminal 42.
Although the load 60 is not specifically limited, For example, it is mentioned that it is a terminal device which has a rechargeable secondary battery like a smart phone.

　非接触電力伝送システム１００は、以上のように構成されている。
　本実施形態に係る受電装置１０は、本実施形態に係る非接触電力伝送システム１００の受電装置１０である。
　また、本実施形態に係る送電装置２０は、本実施形態に係る非接触電力伝送システム１００の送電装置２０である。
　非接触電力伝送システム１００の受電装置１０は、送電装置２０と組み合わせた非接触電力伝送システム１００として流通する他、受電装置１０の単体で流通してもよい。同様に、送電装置２０も単体で流通してもよい。 The non-contact power transmission system 100 is configured as described above.
The power receiving device 10 according to the present embodiment is the power receiving device 10 of the non-contact power transmission system 100 according to the present embodiment.
Moreover, the power transmission apparatus 20 according to the present embodiment is the power transmission apparatus 20 of the contactless power transmission system 100 according to the present embodiment.
The power receiving device 10 of the non-contact power transmission system 100 may be distributed as a single power receiving device 10 in addition to the non-contact power transmission system 100 combined with the power transmission device 20. Similarly, the power transmission device 20 may be distributed alone.

　図５に示す状態は、平面視における筐体１３の４辺と筐体２３との４辺とのうち一辺どうしが平行に配置された状態を示す。
　この状態において、Ｃ２の受電電極１１及びＣ８の受電電極１１がそれぞれ対応する第１送電電極２１と重なり、Ｃ６の受電電極１１が第２送電電極２２と重なっている。このため、Ｃ２の受電電極１１、Ｃ８の受電電極１１及びＣ６の受電電極１１には、電界結合によって交流電圧が励起される。励起される交流電圧は、第１送電電極２１及び第２送電電極２２に印加された交流電圧の周波数に相当する周波数と電界結合度に依存する高さとを有する。
　また、Ｃ２の受電電極１１及びＣ８の受電電極１１は、いずれも、第２送電電極２２とは重なっておらず、Ｃ６の受電電極１１は第１送電電極２１とは重なっていない。
　よって、送電装置２０から受電装置１０へ電力を伝送することができ、送電装置２０から受電装置１０へ良好な伝送効率で電力を伝送することができる。 The state shown in FIG. 5 shows a state in which one side of the four sides of the housing 13 and the four sides of the housing 23 are arranged in parallel in a plan view.
In this state, the C2 power receiving electrode 11 and the C8 power receiving electrode 11 respectively overlap with the corresponding first power transmitting electrode 21, and the C6 power receiving electrode 11 overlaps with the second power transmitting electrode 22. Therefore, an AC voltage is excited by electric field coupling to the C2 power receiving electrode 11, the C8 power receiving electrode 11, and the C6 power receiving electrode 11. The excited AC voltage has a frequency corresponding to the frequency of the AC voltage applied to the first power transmission electrode 21 and the second power transmission electrode 22 and a height depending on the electric field coupling degree.
Further, neither the C2 power receiving electrode 11 nor the C8 power receiving electrode 11 overlaps with the second power transmitting electrode 22, and the C6 power receiving electrode 11 does not overlap with the first power transmitting electrode 21.
Therefore, power can be transmitted from the power transmission device 20 to the power reception device 10, and power can be transmitted from the power transmission device 20 to the power reception device 10 with good transmission efficiency.

　図６に示す状態は、図５に示す状態から、受電装置１０を送電装置２０に対して相対的に図５における右方に移動させた状態である。
　この状態では、Ｃ１の受電電極１１とＣ２の受電電極１１とが共通の第１送電電極２１と重なり、Ｃ５の受電電極１１とＣ６の受電電極１１とが共通の第２送電電極２２と重なり、Ｃ７の受電電極１１とＣ８の受電電極１１とが共通の第１送電電極２１と重なっている。このため、これら受電電極１１には電界結合によって交流電圧が励起される。
　また、Ｃ１の受電電極１１、Ｃ２の受電電極１１、Ｃ７の受電電極１１及びＣ８の受電電極１１は、いずれも、第２送電電極２２とは重なっておらず、Ｃ５の受電電極１１及びＣ６の受電電極１１は、いずれも、第１送電電極２１とは重なっていない。
　よって、やはり、送電装置２０から受電装置１０へ電力を伝送することができ、送電装置２０から受電装置１０へ良好な伝送効率で電力を伝送することができる。 The state illustrated in FIG. 6 is a state in which the power receiving device 10 is moved to the right in FIG. 5 relative to the power transmission device 20 from the state illustrated in FIG.
In this state, the C1 power receiving electrode 11 and the C2 power receiving electrode 11 overlap with the common first power transmitting electrode 21, the C5 power receiving electrode 11 and the C6 power receiving electrode 11 overlap with the common second power transmitting electrode 22, The C7 power receiving electrode 11 and the C8 power receiving electrode 11 overlap the common first power transmitting electrode 21. For this reason, an alternating voltage is excited in these power receiving electrodes 11 by electric field coupling.
Further, the C1 power receiving electrode 11, the C2 power receiving electrode 11, the C7 power receiving electrode 11 and the C8 power receiving electrode 11 do not overlap the second power transmitting electrode 22, and the C5 power receiving electrodes 11 and C6 are not overlapped. None of the power receiving electrodes 11 overlaps the first power transmitting electrode 21.
Therefore, power can be transmitted from the power transmission device 20 to the power reception device 10, and power can be transmitted from the power transmission device 20 to the power reception device 10 with good transmission efficiency.

図７に示す状態は、図６に示す状態から、受電装置１０を送電装置２０に対して相対的に図６における下方に移動させた状態である。
　この状態では、Ｃ１の受電電極１１とＣ２の受電電極１１とが共通の第１送電電極２１と重なり、Ｃ３の受電電極１１、Ｃ４の受電電極１１、Ｃ５の受電電極１１及びＣ６の受電電極１１が共通の第２送電電極２２と重なり、Ｃ７の受電電極１１とＣ８の受電電極１１とが共通の第１送電電極２１に重なっている。このため、これら受電電極１１には電界結合によって交流電圧が励起される。
　また、Ｃ１の受電電極１１、Ｃ２の受電電極１１、Ｃ７の受電電極１１及びＣ８の受電電極１１は、いずれも、第２送電電極２２とは重なっておらず、Ｃ３の受電電極１１、Ｃ４の受電電極１１、Ｃ５の受電電極１１及びＣ６の受電電極１１は、いずれも第１送電電極２１とは重なっていない。
　よって、やはり、送電装置２０から受電装置１０へ電力を伝送することができ、送電装置２０から受電装置１０へ良好な伝送効率で電力を伝送することができる。 The state illustrated in FIG. 7 is a state in which the power receiving device 10 is moved downward in FIG. 6 relative to the power transmission device 20 from the state illustrated in FIG.
In this state, the C1 power receiving electrode 11 and the C2 power receiving electrode 11 overlap with the common first power transmitting electrode 21, and the C3 power receiving electrode 11, the C4 power receiving electrode 11, the C5 power receiving electrode 11 and the C6 power receiving electrode 11 are overlapped. Overlaps the common second power transmission electrode 22, and the C7 power reception electrode 11 and the C8 power reception electrode 11 overlap the common first power transmission electrode 21. For this reason, an alternating voltage is excited in these power receiving electrodes 11 by electric field coupling.
In addition, the C1 power receiving electrode 11, the C2 power receiving electrode 11, the C7 power receiving electrode 11 and the C8 power receiving electrode 11 do not overlap the second power transmitting electrode 22, and the C3 power receiving electrode 11, C4 The power receiving electrode 11, the power receiving electrode 11 of C 5, and the power receiving electrode 11 of C 6 do not overlap with the first power transmitting electrode 21.
Therefore, power can be transmitted from the power transmission device 20 to the power reception device 10, and power can be transmitted from the power transmission device 20 to the power reception device 10 with good transmission efficiency.

　図８に示す状態は、平面視における筐体１３の４辺が筐体２３の４辺に対して４５度傾斜するように受電装置１０を配置し、且つ、送電電極に対する受電電極１１の重なり面積が最も小さくなるようにした状態を示す。
　この状態は、Ｃ５の受電電極１１とＣ６の受電電極１１とがそれぞれ対応する第１送電電極２１と重なり、Ｃ７の受電電極１１とＣ８の受電電極１１とがそれぞれ対応する第２送電電極２２と重なっている。このため、これら受電電極１１には電界結合によって交流電圧が励起される。
　また、Ｃ５の受電電極１１とＣ６の受電電極１１は、いずれも、第２送電電極２２とは重なっておらず、Ｃ７の受電電極１１とＣ８の受電電極１１は、いずれも第１送電電極２１とは重なっていない。
　よって、やはり、送電装置２０から受電装置１０へ電力を伝送することができ、送電装置２０から受電装置１０へ良好な伝送効率で電力を伝送することができる。 In the state shown in FIG. 8, the power receiving device 10 is arranged such that the four sides of the housing 13 in the plan view are inclined by 45 degrees with respect to the four sides of the housing 23, and the overlapping area of the power receiving electrode 11 with respect to the power transmitting electrode The state in which is made the smallest is shown.
In this state, the C5 power receiving electrode 11 and the C6 power receiving electrode 11 overlap with the corresponding first power transmitting electrode 21, and the C7 power receiving electrode 11 and the C8 power receiving electrode 11 respectively correspond with the second power transmitting electrode 22. overlapping. For this reason, an alternating voltage is excited in these power receiving electrodes 11 by electric field coupling.
In addition, neither the C5 power receiving electrode 11 nor the C6 power receiving electrode 11 overlaps the second power transmitting electrode 22, and both the C7 power receiving electrode 11 and the C8 power receiving electrode 11 are the first power transmitting electrode 21. And do not overlap.
Therefore, power can be transmitted from the power transmission device 20 to the power reception device 10, and power can be transmitted from the power transmission device 20 to the power reception device 10 with good transmission efficiency.

　また、図示は省略するが、受電装置１０を送電装置２０に対して図５から図８に示す以外の位置に移動させても、受電装置１０を送電装置２０に対して図５から図８に示す以外の回転角度で配置しても、（Ａ）少なくとも受電面Ａ１の全面が送電面Ａ２と重ねて配置されている限りにおいて、又は、（Ｂ）少なくとも受電側対向面１５の全面が送電側対向面２５と重ねて配置されている限りにおいて、又は、（Ｃ）少なくとも受電面Ａ１の全面が送電側対向面２５と重ねて配置されている限りにおいて、又は、（Ｄ）少なくとも受電側対向面１５の全面が送電面Ａ２と重ねて配置されている限りにおいて、常に、１つ以上の受電電極１１が第１送電電極２１と重なるとともに他の１つ以上の受電電極１１が第２送電電極２２と重なり、且つ、送電電極と重なるいずれの受電電極１１も第１送電電極２１又は第２送電電極２２の一方にのみ重なる。
　つまり、いずれの受電電極１１も第１送電電極２１と第２送電電極２２とを跨ぐことはない。より詳細には、本実施形態の場合、いずれの受電電極１１も、複数の送電電極を跨ぐことはない（第１送電電極２１どうしを跨ぐことも、第２送電電極２２どうしを跨ぐこともない）。
　このため、送電装置２０から受電装置１０へ良好な伝送効率で電力を伝送することが可能である。 Although illustration is omitted, even if the power receiving device 10 is moved to a position other than that shown in FIGS. 5 to 8 with respect to the power transmitting device 20, the power receiving device 10 is moved from the power transmitting device 20 to FIGS. Even if it is arranged at a rotation angle other than shown, (A) as long as at least the entire surface of the power receiving surface A1 is disposed so as to overlap the power transmitting surface A2, or (B) at least the entire surface of the power receiving side facing surface 15 is on the power transmitting side. As long as it is disposed so as to overlap with the facing surface 25, or (C) as long as at least the entire surface of the power receiving surface A1 is disposed so as to overlap with the power transmitting side facing surface 25, or (D) at least the power receiving side facing surface. As long as the entire surface of 15 is arranged so as to overlap with the power transmission surface A2, one or more power receiving electrodes 11 always overlap the first power transmitting electrode 21 and the other one or more power receiving electrodes 11 are second power transmitting electrodes 22. And Receiving electrode 11 of any overlapping with DENDEN electrode also overlapping only one of the first transmission electrode 21 or the second transmission electrode 22.
That is, none of the power receiving electrodes 11 straddles the first power transmitting electrode 21 and the second power transmitting electrode 22. More specifically, in the case of this embodiment, none of the power receiving electrodes 11 straddles a plurality of power transmitting electrodes (does not straddle the first power transmitting electrodes 21 or straddle the second power transmitting electrodes 22). ).
For this reason, it is possible to transmit electric power from the power transmission device 20 to the power reception device 10 with good transmission efficiency.

　ここで、特許文献１の技術では、電界結合している送電電極を判定し、当該送電電極と対応するスイッチをオンにする制御を、ＣＰＵが行う。
　これに対し、本実施形態の場合、送電装置２０において、各送電電極と対応してコイル（第１共振コイル３４又は第２共振コイル３５が設けられている。このため、受電電極１１が重なった送電電極を有するＬＣ共振回路においてのみ共振条件が成立し、当該ＬＣ共振回路のみが高圧になり、その他のＬＣ共振回路の送電電極は共振条件が成立しないので低圧のままとなる。
　よって、本実施形態の場合、特許文献１の技術とは異なり、ＣＰＵによるスイッチの制御が不要である。 Here, in the technique of Patent Document 1, the CPU performs control to determine a power transmission electrode that is electrically coupled and turn on a switch corresponding to the power transmission electrode.
On the other hand, in the case of the present embodiment, the power transmission device 20 is provided with a coil (the first resonance coil 34 or the second resonance coil 35) corresponding to each power transmission electrode. The resonance condition is satisfied only in the LC resonance circuit having the power transmission electrode, only the LC resonance circuit becomes high voltage, and the power transmission electrodes of the other LC resonance circuits remain low because the resonance condition is not satisfied.
Therefore, in the case of this embodiment, unlike the technique of Patent Document 1, it is not necessary to control the switch by the CPU.

　〔第２実施形態〕
　次に、図９及び図１０を用いて第２実施形態を説明する。
　本実施形態の場合、受電装置１０の構成が、上記の第１実施形態と相違しており、それ以外の構成は、第１実施形態と同様である。 [Second Embodiment]
Next, a second embodiment will be described with reference to FIGS. 9 and 10.
In the case of this embodiment, the configuration of the power receiving device 10 is different from that of the first embodiment, and the other configurations are the same as those of the first embodiment.

　本実施形態の場合、受電面が送電面に重ねて配置されている状態において、送電面に対する受電面の位置及び向きにかかわらず、複数の受電電極１１のうち、２つ以上の受電電極１１が一の第１送電電極２１と重なるとともに他の２つ以上の受電電極１１が一の第２送電電極２２と重なるように、複数の送電電極と複数の受電電極１１とが配置されている（図１０参照）。
　このことを実現するため、図９に示すように、受電装置１０において、第１実施形態と比べてより多くの受電電極１１が密集して配置されている。
　本実施形態の場合、複数の受電電極１１の各々の外径が、送電電極の外径の半分未満である。 In the case of the present embodiment, in a state where the power receiving surface is disposed so as to overlap the power transmitting surface, two or more power receiving electrodes 11 among the plurality of power receiving electrodes 11 are provided regardless of the position and orientation of the power receiving surface with respect to the power transmitting surface. The plurality of power transmission electrodes and the plurality of power reception electrodes 11 are arranged so as to overlap with one first power transmission electrode 21 and so that the other two or more power reception electrodes 11 overlap with one second power transmission electrode 22 (FIG. 10).
In order to realize this, as shown in FIG. 9, in the power receiving device 10, more power receiving electrodes 11 are densely arranged as compared with the first embodiment.
In the case of this embodiment, the outer diameter of each of the plurality of power receiving electrodes 11 is less than half of the outer diameter of the power transmitting electrode.

　以上、図面を参照して各実施形態を説明したが、これらは本発明の例示であり、上記以外の様々な構成を採用することもできる。また、上記の各実施形態は、本発明の主旨を逸脱しない範囲で、適宜に組み合わせることができる。 As mentioned above, although each embodiment was described with reference to drawings, these are illustrations of the present invention, and various configurations other than the above can also be adopted. Moreover, each said embodiment can be combined suitably in the range which does not deviate from the main point of this invention.

　本実施形態は以下の技術思想を包含する。
　（１）交流電源と、それぞれ前記交流電源と電気的に接続されているとともに送電面に沿って配置されている複数の送電電極と、を有する送電装置と、
　前記送電面に重ねて配置される受電面に沿って配置されていて前記送電電極と電界結合される複数の受電電極を有し、前記送電装置から非接触で電力供給を受ける受電装置と、
　を備える非接触電力伝送システムであって、
　前記複数の送電電極には、互いに逆位相となる複数の第１送電電極と複数の第２送電電極とが含まれ、
　前記受電面が前記送電面に重ねて配置されている状態において、前記送電面と前記受電面との相対的な位置及び相対的な向きにかかわらず、（１）前記複数の受電電極のうち１つ以上の受電電極が前記第１送電電極と重なるとともに他の１つ以上の受電電極が前記第２送電電極と重なり、且つ、（２）前記送電電極と重なるいずれの受電電極も前記第１送電電極又は前記第２送電電極の一方にのみ重なる、という条件を満たし得るように、前記複数の送電電極と前記複数の受電電極とが配置されている非接触電力伝送システム。
　（２）前記第１送電電極と前記第２送電電極とが交互に配置されている（１）に記載の非接触電力伝送システム。
　（３）前記複数の送電電極は格子状に配置されている（１）又は（２）に記載の非接触電力伝送システム。
　（４）前記複数の送電電極のうち隣り合う送電電極間の間隙が、前記受電電極の外径よりも大きい（１）から（３）のいずれか一項に記載の非接触電力伝送システム。
　（５）前記複数の受電電極は格子状に配置されている（１）から（４）のいずれか一項に記載の非接触電力伝送システム。
　（６）前記複数の受電電極のうち隣り合う受電電極間の間隙が、前記送電電極の外径よりも小さい（１）から（５）のいずれか一項に記載の非接触電力伝送システム。
　（７）交流電源と、それぞれ前記交流電源と電気的に接続されているとともに送電面に沿って配置されている複数の送電電極と、を有する送電装置と、
　前記送電面に重ねて配置される受電面に沿って配置されていて前記送電電極と電界結合される複数の受電電極を有し、前記送電装置から非接触で電力供給を受ける受電装置と、
　を備える非接触電力伝送システムであって、
　前記複数の送電電極には、互いに逆位相となる第１送電電極と第２送電電極とが含まれ、
　前記複数の送電電極は格子状に配置されており、
　前記第１送電電極と前記第２送電電極とが交互に配置されており、
　前記複数の送電電極のうち隣り合う送電電極間の間隙が、前記受電電極の外径よりも大きく、
　前記複数の受電電極は格子状に配置されており、
　前記複数の受電電極のうち隣り合う受電電極間の間隙が、前記送電電極の外径よりも小さい非接触電力伝送システム。
　（８）前記複数の送電電極の各々は正方形状に形成されている（１）から（７）のいずれか一項に記載の非接触電力伝送システム。
　（９）前記複数の受電電極の各々は円形状に形成されている（１）から（８）のいずれか一項に記載の非接触電力伝送システム。
　（１０）前記複数の受電電極の各々の外径が、前記複数の送電電極の外径の半分以上である（１）から（９）のいずれか一項に記載の非接触電力伝送システム。
　（１１）前記交流電源は、互いに逆位相となる第１交流出力端子と第２交流出力端子とを有し、
　前記第１送電電極の各々は、個別の第１共振コイルを介して、前記第１交流出力端子と電気的に接続されており、
　前記第１送電電極と、当該第１送電電極と対応する前記第１共振コイルとにより、第１ＬＣ共振要素が構成されており、
　前記第２送電電極の各々は、個別の第２共振コイルを介して、前記第２交流出力端子と電気的に接続されており、
　前記第２送電電極と、当該第２送電電極と対応する前記第２共振コイルとにより、第２ＬＣ共振要素が構成されている（１）から（１０）のいずれか一項に記載の非接触電力伝送システム。
　（１２）前記第１ＬＣ共振要素の各々の共振周波数が互いに等しく、前記第２ＬＣ共振要素の各々の共振周波数が互いに等しく、前記第１ＬＣ共振要素と前記第２ＬＣ共振要素との共振周波数が互いに等しい（１１）に記載の非接触電力伝送システム。
　（１３）前記受電装置は、負荷とそれぞれ電気的に接続される第１受電出力端子と第２受電出力端子とを有し、
　前記受電電極の各々は、第１伝送線を介して前記第１受電出力端子と電気的に接続されているとともに、第２伝送線を介して前記第２受電出力端子と電気的に接続されており、
　前記第１伝送線には、第１整流素子が挿入されており、
　前記第２伝送線には、前記第１整流素子と同方向に電流を整流する第２整流素子が挿入されている（１）から（１２）のいずれか一項に記載の非接触電力伝送システム。
　（１４）（１）から（１３）のいずれか一項に記載の非接触電力伝送システムの前記送電装置。
　（１５）（１）から（１３）のいずれか一項に記載の非接触電力伝送システムの前記受電装置。 This embodiment includes the following technical ideas.
(1) A power transmission device having an AC power source and a plurality of power transmission electrodes that are electrically connected to the AC power source and arranged along the power transmission surface,
A power receiving device that has a plurality of power receiving electrodes that are arranged along a power receiving surface that is placed over the power transmitting surface and that is electrically coupled to the power transmitting electrode, and that receives power from the power transmitting device in a contactless manner;
A non-contact power transmission system comprising:
The plurality of power transmission electrodes include a plurality of first power transmission electrodes and a plurality of second power transmission electrodes that are in opposite phases to each other,
Regardless of the relative position and relative orientation of the power transmission surface and the power reception surface in a state where the power reception surface is disposed so as to overlap the power transmission surface, (1) one of the plurality of power reception electrodes One or more power receiving electrodes overlap with the first power transmitting electrode, another one or more power receiving electrodes overlap with the second power transmitting electrode, and (2) any power receiving electrode overlapping with the power transmitting electrode is the first power transmitting. A non-contact power transmission system in which the plurality of power transmission electrodes and the plurality of power reception electrodes are arranged so as to satisfy a condition that only one of the electrode and the second power transmission electrode overlaps.
(2) The non-contact power transmission system according to (1), wherein the first power transmission electrode and the second power transmission electrode are alternately arranged.
(3) The non-contact power transmission system according to (1) or (2), wherein the plurality of power transmission electrodes are arranged in a grid pattern.
(4) The non-contact power transmission system according to any one of (1) to (3), wherein a gap between adjacent power transmission electrodes among the plurality of power transmission electrodes is larger than an outer diameter of the power reception electrode.
(5) The non-contact power transmission system according to any one of (1) to (4), wherein the plurality of power receiving electrodes are arranged in a lattice shape.
(6) The non-contact power transmission system according to any one of (1) to (5), wherein a gap between adjacent power receiving electrodes among the plurality of power receiving electrodes is smaller than an outer diameter of the power transmitting electrode.
(7) A power transmission device having an AC power source and a plurality of power transmission electrodes that are electrically connected to the AC power source and arranged along a power transmission surface, respectively.
A power receiving device that has a plurality of power receiving electrodes that are arranged along a power receiving surface that is placed over the power transmitting surface and that is electrically coupled to the power transmitting electrode, and that receives power from the power transmitting device in a contactless manner;
A non-contact power transmission system comprising:
The plurality of power transmission electrodes include a first power transmission electrode and a second power transmission electrode that are in opposite phases to each other,
The plurality of power transmission electrodes are arranged in a grid pattern,
The first power transmission electrode and the second power transmission electrode are alternately arranged,
The gap between adjacent power transmission electrodes among the plurality of power transmission electrodes is larger than the outer diameter of the power reception electrode,
The plurality of power receiving electrodes are arranged in a grid pattern,
A non-contact power transmission system in which a gap between adjacent power receiving electrodes among the plurality of power receiving electrodes is smaller than an outer diameter of the power transmitting electrode.
(8) The non-contact power transmission system according to any one of (1) to (7), wherein each of the plurality of power transmission electrodes is formed in a square shape.
(9) The non-contact power transmission system according to any one of (1) to (8), wherein each of the plurality of power receiving electrodes is formed in a circular shape.
(10) The non-contact power transmission system according to any one of (1) to (9), wherein an outer diameter of each of the plurality of power receiving electrodes is not less than half of an outer diameter of the plurality of power transmitting electrodes.
(11) The AC power source has a first AC output terminal and a second AC output terminal that are in opposite phases to each other,
Each of the first power transmission electrodes is electrically connected to the first AC output terminal via an individual first resonance coil,
A first LC resonant element is configured by the first power transmission electrode and the first resonance coil corresponding to the first power transmission electrode,
Each of the second power transmission electrodes is electrically connected to the second AC output terminal via an individual second resonance coil,
The non-contact power according to any one of (1) to (10), wherein a second LC resonance element is configured by the second power transmission electrode and the second resonance coil corresponding to the second power transmission electrode. Transmission system.
(12) The resonance frequencies of the first LC resonance elements are equal to each other, the resonance frequencies of the second LC resonance elements are equal to each other, and the resonance frequencies of the first LC resonance element and the second LC resonance element are equal to each other ( The non-contact power transmission system according to 11).
(13) The power receiving device includes a first power receiving output terminal and a second power receiving output terminal that are electrically connected to the load, respectively.
Each of the power receiving electrodes is electrically connected to the first power receiving output terminal via a first transmission line and electrically connected to the second power receiving output terminal via a second transmission line. And
A first rectifier element is inserted in the first transmission line;
The non-contact power transmission system according to any one of (1) to (12), wherein a second rectifying element that rectifies a current in the same direction as the first rectifying element is inserted in the second transmission line. .
(14) The power transmission device of the non-contact power transmission system according to any one of (1) to (13).
(15) The power receiving device of the non-contact power transmission system according to any one of (1) to (13).

Claims

　交流電源と、それぞれ前記交流電源と電気的に接続されているとともに送電面に沿って配置されている複数の送電電極と、を有する送電装置と、
　前記送電面に重ねて配置される受電面に沿って配置されていて前記送電電極と電界結合される複数の受電電極を有し、前記送電装置から非接触で電力供給を受ける受電装置と、
　を備える非接触電力伝送システムであって、
　前記複数の送電電極には、互いに逆位相となる複数の第１送電電極と複数の第２送電電極とが含まれ、
　前記受電面が前記送電面に重ねて配置されている状態において、前記送電面と前記受電面との相対的な位置及び相対的な向きにかかわらず、（１）前記複数の受電電極のうち１つ以上の受電電極が前記第１送電電極と重なるとともに他の１つ以上の受電電極が前記第２送電電極と重なり、且つ、（２）前記送電電極と重なるいずれの受電電極も前記第１送電電極又は前記第２送電電極の一方にのみ重なる、という条件を満たし得るように、前記複数の送電電極と前記複数の受電電極とが配置されている非接触電力伝送システム。 A power transmission device comprising: an AC power source; and a plurality of power transmission electrodes that are electrically connected to the AC power source and disposed along a power transmission surface, respectively.
A power receiving device that has a plurality of power receiving electrodes that are arranged along a power receiving surface that is placed over the power transmitting surface and that is electrically coupled to the power transmitting electrode, and that receives power from the power transmitting device in a contactless manner;
A non-contact power transmission system comprising:
The plurality of power transmission electrodes include a plurality of first power transmission electrodes and a plurality of second power transmission electrodes that are in opposite phases to each other,
Regardless of the relative position and relative orientation of the power transmission surface and the power reception surface in a state where the power reception surface is disposed so as to overlap the power transmission surface, (1) one of the plurality of power reception electrodes One or more power receiving electrodes overlap with the first power transmitting electrode, another one or more power receiving electrodes overlap with the second power transmitting electrode, and (2) any power receiving electrode overlapping with the power transmitting electrode is the first power transmitting. A non-contact power transmission system in which the plurality of power transmission electrodes and the plurality of power reception electrodes are arranged so as to satisfy a condition that only one of the electrode and the second power transmission electrode overlaps.
　前記第１送電電極と前記第２送電電極とが交互に配置されている請求項１に記載の非接触電力伝送システム。 The contactless power transmission system according to claim 1, wherein the first power transmission electrode and the second power transmission electrode are alternately arranged.
　前記複数の送電電極は格子状に配置されている請求項１又は２に記載の非接触電力伝送システム。 The contactless power transmission system according to claim 1 or 2, wherein the plurality of power transmission electrodes are arranged in a grid pattern.
　前記複数の送電電極のうち隣り合う送電電極間の間隙が、前記受電電極の外径よりも大きい請求項１から３のいずれか一項に記載の非接触電力伝送システム。 The non-contact power transmission system according to any one of claims 1 to 3, wherein a gap between adjacent power transmission electrodes among the plurality of power transmission electrodes is larger than an outer diameter of the power reception electrode.
　前記複数の受電電極は格子状に配置されている請求項１から４のいずれか一項に記載の非接触電力伝送システム。 The contactless power transmission system according to any one of claims 1 to 4, wherein the plurality of power receiving electrodes are arranged in a grid pattern.
　前記複数の受電電極のうち隣り合う受電電極間の間隙が、前記送電電極の外径よりも小さい請求項１から５のいずれか一項に記載の非接触電力伝送システム。 The non-contact power transmission system according to any one of claims 1 to 5, wherein a gap between adjacent power receiving electrodes among the plurality of power receiving electrodes is smaller than an outer diameter of the power transmitting electrode.
　交流電源と、それぞれ前記交流電源と電気的に接続されているとともに送電面に沿って配置されている複数の送電電極と、を有する送電装置と、
　前記送電面に重ねて配置される受電面に沿って配置されていて前記送電電極と電界結合される複数の受電電極を有し、前記送電装置から非接触で電力供給を受ける受電装置と、
　を備える非接触電力伝送システムであって、
　前記複数の送電電極には、互いに逆位相となる第１送電電極と第２送電電極とが含まれ、
　前記複数の送電電極は格子状に配置されており、
　前記第１送電電極と前記第２送電電極とが交互に配置されており、
　前記複数の送電電極のうち隣り合う送電電極間の間隙が、前記受電電極の外径よりも大きく、
　前記複数の受電電極は格子状に配置されており、
　前記複数の受電電極のうち隣り合う受電電極間の間隙が、前記送電電極の外径よりも小さい非接触電力伝送システム。 A power transmission device comprising: an AC power source; and a plurality of power transmission electrodes that are electrically connected to the AC power source and disposed along a power transmission surface, respectively.
A power receiving device that has a plurality of power receiving electrodes that are arranged along a power receiving surface that is placed over the power transmitting surface and that is electrically coupled to the power transmitting electrode, and that receives power from the power transmitting device in a contactless manner;
A non-contact power transmission system comprising:
The plurality of power transmission electrodes include a first power transmission electrode and a second power transmission electrode that are in opposite phases to each other,
The plurality of power transmission electrodes are arranged in a grid pattern,
The first power transmission electrode and the second power transmission electrode are alternately arranged,
The gap between adjacent power transmission electrodes among the plurality of power transmission electrodes is larger than the outer diameter of the power reception electrode,
The plurality of power receiving electrodes are arranged in a grid pattern,
A non-contact power transmission system in which a gap between adjacent power receiving electrodes among the plurality of power receiving electrodes is smaller than an outer diameter of the power transmitting electrode.
　前記複数の送電電極の各々は正方形状に形成されている請求項１から７のいずれか一項に記載の非接触電力伝送システム。 The contactless power transmission system according to any one of claims 1 to 7, wherein each of the plurality of power transmission electrodes is formed in a square shape.
　前記複数の受電電極の各々は円形状に形成されている請求項１から８のいずれか一項に記載の非接触電力伝送システム。 The contactless power transmission system according to any one of claims 1 to 8, wherein each of the plurality of power receiving electrodes is formed in a circular shape.
　前記複数の受電電極の各々の外径が、前記複数の送電電極の外径の半分以上である請求項１から９のいずれか一項に記載の非接触電力伝送システム。 The contactless power transmission system according to any one of claims 1 to 9, wherein an outer diameter of each of the plurality of power receiving electrodes is half or more of an outer diameter of the plurality of power transmission electrodes.
　前記交流電源は、互いに逆位相となる第１交流出力端子と第２交流出力端子とを有し、
　前記第１送電電極の各々は、個別の第１共振コイルを介して、前記第１交流出力端子と電気的に接続されており、
　前記第１送電電極と、当該第１送電電極と対応する前記第１共振コイルとにより、第１ＬＣ共振要素が構成されており、
　前記第２送電電極の各々は、個別の第２共振コイルを介して、前記第２交流出力端子と電気的に接続されており、
　前記第２送電電極と、当該第２送電電極と対応する前記第２共振コイルとにより、第２ＬＣ共振要素が構成されている請求項１から１０のいずれか一項に記載の非接触電力伝送システム。 The AC power source has a first AC output terminal and a second AC output terminal that are in opposite phases to each other,
Each of the first power transmission electrodes is electrically connected to the first AC output terminal via an individual first resonance coil,
A first LC resonant element is configured by the first power transmission electrode and the first resonance coil corresponding to the first power transmission electrode,
Each of the second power transmission electrodes is electrically connected to the second AC output terminal via an individual second resonance coil,
The contactless power transmission system according to any one of claims 1 to 10, wherein a second LC resonance element is configured by the second power transmission electrode and the second resonance coil corresponding to the second power transmission electrode. .
　前記第１ＬＣ共振要素の各々の共振周波数が互いに等しく、前記第２ＬＣ共振要素の各々の共振周波数が互いに等しく、前記第１ＬＣ共振要素と前記第２ＬＣ共振要素との共振周波数が互いに等しい請求項１１に記載の非接触電力伝送システム。 The resonance frequency of each of the first LC resonance elements is equal to each other, the resonance frequency of each of the second LC resonance elements is equal to each other, and the resonance frequencies of the first LC resonance element and the second LC resonance element are equal to each other. The contactless power transmission system described.
　前記受電装置は、負荷とそれぞれ電気的に接続される第１受電出力端子と第２受電出力端子とを有し、
　前記受電電極の各々は、第１伝送線を介して前記第１受電出力端子と電気的に接続されているとともに、第２伝送線を介して前記第２受電出力端子と電気的に接続されており、
　前記第１伝送線には、第１整流素子が挿入されており、
　前記第２伝送線には、前記第１整流素子と同方向に電流を整流する第２整流素子が挿入されている請求項１から１２のいずれか一項に記載の非接触電力伝送システム。 The power receiving device includes a first power receiving output terminal and a second power receiving output terminal that are electrically connected to a load, respectively.
Each of the power receiving electrodes is electrically connected to the first power receiving output terminal via a first transmission line and electrically connected to the second power receiving output terminal via a second transmission line. And
A first rectifier element is inserted in the first transmission line;
The non-contact power transmission system according to any one of claims 1 to 12, wherein a second rectifying element that rectifies a current in the same direction as the first rectifying element is inserted in the second transmission line.
　請求項１から１３のいずれか一項に記載の非接触電力伝送システムの前記送電装置。 The power transmission device of the non-contact power transmission system according to any one of claims 1 to 13.
　請求項１から１３のいずれか一項に記載の非接触電力伝送システムの前記受電装置。 The power receiving device of the non-contact power transmission system according to any one of claims 1 to 13.