JP2013211466A - Non-contact power supply device - Google Patents

Non-contact power supply device Download PDF

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JP2013211466A
JP2013211466A JP2012081874A JP2012081874A JP2013211466A JP 2013211466 A JP2013211466 A JP 2013211466A JP 2012081874 A JP2012081874 A JP 2012081874A JP 2012081874 A JP2012081874 A JP 2012081874A JP 2013211466 A JP2013211466 A JP 2013211466A
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side pad
core
laminated
power
transmission side
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JP5896226B2 (en
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Eisuke Takahashi
英介 高橋
Koji Mazaki
耕司 間崎
Kazuyoshi Obayashi
和良 大林
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Denso Corp
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Denso Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
    • B60M7/003—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway for vehicles using stored power (e.g. charging stations)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F2027/348—Preventing eddy currents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact power supply device in which eddy current loss can be suppressed, even if magnetic flux flows in or flows out obliquely to the original inflow or outflow direction.SOLUTION: A transmission side pad 11 includes a laminated core 110, a powder core 111, and windings 112, 113. The laminated core 110 is constituted by laminating a planar magnetic material 110a in the plate thickness direction, i.e., the longitudinal direction. The powder core 111 is formed into a lamination of the laminated core 110 which is constituted while laminating the end face of the magnetic material 110a. A reception side pad 12 has the same constitution as the transmission side pad 11, and faces the transmission side pad 11 in the vertical direction oppositely thereto. Even if the magnetic flux flows in or out obliquely to the vertical direction, eddy current can be suppressed by the powder core 111 formed on the end face of the laminated core 110. Consequently, eddy current loss can be suppressed even if the magnetic flux flows in or out obliquely to the original inflow or outflow direction.

Description

本発明は、送電側パッドから受電側パッドに非接触で送電する非接触給電装置に関する。   The present invention relates to a non-contact power feeding device that performs non-contact power transmission from a power transmission side pad to a power reception side pad.

従来、非接触給電装置として、例えば特許文献１に開示されている非接触給電システムがある。   Conventionally, as a non-contact power feeding device, for example, there is a non-contact power feeding system disclosed in Patent Document 1.

この非接触給電システムは、給電線と、受電装置とを備えている。受電装置は、Ｅ型鉄心と、フェライト部材と、受電用コイルとを備えている。Ｅ型鉄心は、Ｅ字状に切断された板状の磁性材を板厚方向に積層して構成されている。フェライト部材は、Ｅ型鉄心の板厚方向の両端面に接合されている。受電用コイルは、フェライト部材の接合されたＥ型鉄心の中央脚部に巻回されている。   This non-contact power supply system includes a power supply line and a power receiving device. The power receiving device includes an E-type iron core, a ferrite member, and a power receiving coil. The E-type iron core is configured by laminating plate-shaped magnetic materials cut into an E shape in the thickness direction. The ferrite member is joined to both end faces of the E-type iron core in the plate thickness direction. The power receiving coil is wound around a central leg portion of an E-type iron core to which a ferrite member is bonded.

給電線の発生する磁束がＥ型鉄心を介して鎖交することで、受電用コイルは、誘導起電力を発生する。受電用コイルに電流が流れると、給電線の発生する磁束と逆向きの磁束が発生する。その結果、磁束の流れが乱れ、Ｅ型鉄心の板厚方向の両端部周辺に漏れ磁束が発生する。しかし、Ｅ型鉄心の板厚方向の両端面には、フェライト部材が接合されている。そのため、Ｅ型鉄心の板厚方向の両端部周辺における渦電流を低減することができる。従って、漏れ磁束に伴う渦電流損を抑えることができる。   The power receiving coil generates an induced electromotive force when the magnetic flux generated by the feeder line is linked via the E-type iron core. When a current flows through the power receiving coil, a magnetic flux in the direction opposite to the magnetic flux generated by the feeder line is generated. As a result, the flow of magnetic flux is disturbed, and leakage magnetic flux is generated around both ends of the E-type core in the thickness direction. However, ferrite members are joined to both end faces of the E-type iron core in the plate thickness direction. Therefore, it is possible to reduce eddy currents around both ends of the E-type core in the thickness direction. Therefore, eddy current loss due to leakage magnetic flux can be suppressed.

特開平１０−０９４１０４号公報JP-A-10-094104

ところで、送電側パッドと受電側パッドを互いに対向させた状態で、送電側パッドから受電側パッドに非接触で送電する非接触給電装置がある。この送電側パッド及び受電側パッドに、前述した受電装置と同一構成を適用することができる。この場合、磁性材の端面が積層された状態で構成されるＥ型鉄心の脚部の積層端面が、互いに対向した状態で配置される。   By the way, there is a non-contact power feeding device that performs non-contact power transmission from the power transmission side pad to the power reception side pad in a state where the power transmission side pad and the power reception side pad face each other. The same configuration as that of the power receiving device described above can be applied to the power transmitting side pad and the power receiving side pad. In this case, the laminated end faces of the leg portions of the E-type iron core configured with the end faces of the magnetic materials being laminated are arranged in a state of facing each other.

送電側パッドと受電側パッドの間隔が大きいと、ギャップ内において、磁束が、本来流入出する方向に対して横方向に広がってしまう。そのため、磁束が流入出する脚部の積層端面付近において、磁束が、本来流入出する方向に対して斜めに流入出するようになる。互いに対向するＥ型鉄心の位置がずれた場合も同様に、磁束が流入出する脚部の積層端面付近において、磁束が、本来流入出する方向に対して斜めに流入出するようになる。その結果、磁束が流入出する脚部の積層端面付近において、渦電流が流れてしまう。この渦電流は、Ｅ型鉄心の板厚方向の両端部に接合されたフェライト部材では低減できない。従って、渦電流損が増加してしまうという問題があった。   If the distance between the power transmission side pad and the power reception side pad is large, the magnetic flux spreads in the lateral direction in the gap with respect to the direction in which it originally flows in and out. Therefore, in the vicinity of the laminated end surface of the leg portion where the magnetic flux flows in and out, the magnetic flux flows in and out obliquely with respect to the original flow direction. Similarly, when the positions of the E-type iron cores facing each other shift, the magnetic flux flows in and out obliquely with respect to the direction in which the magnetic flux originally flows in and out in the vicinity of the laminated end surface of the leg portion through which the magnetic flux flows in and out. As a result, an eddy current flows in the vicinity of the laminated end face of the leg portion where the magnetic flux flows in and out. This eddy current cannot be reduced by a ferrite member joined to both ends of the E-type core in the plate thickness direction. Therefore, there is a problem that eddy current loss increases.

本発明はこのような事情に鑑みてなされたものであり、磁束が本来流入出する方向に対して斜めに流入出しても、渦電流損を抑えることができる非接触給電装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and provides a non-contact power feeding device that can suppress eddy current loss even when the magnetic flux flows in and out obliquely with respect to the direction in which the magnetic flux originally flows in and out. Objective.

本発明の非接触給電装置は、板状の磁性材を板厚方向に積層して構成される積層コアと、積層コアに沿って配置される巻線とを有する送電側パッド及び受電側パッドを備え、磁性材の端面が積層された状態で構成される積層コアの積層端面に、磁束が流入出することで、送電側パッドから受電側パッドに非接触で送電する非接触給電装置において、送電側パッドと受電側パッドの積層コアの積層端面に、粉末状の磁性材からなる粉体コアを有することを特徴とする。   The non-contact power feeding device of the present invention includes a power transmission side pad and a power reception side pad having a laminated core configured by laminating plate-like magnetic materials in the thickness direction, and windings arranged along the laminated core. In a non-contact power feeding device that transmits power in a non-contact manner from a power transmission side pad to a power receiving side pad by the magnetic flux flowing into and out of the laminated end surface of the laminated core configured with the end surfaces of magnetic materials being laminated. It is characterized by having a powder core made of a powdered magnetic material on the laminated end face of the laminated core of the side pad and the power receiving side pad.

送電側パッドと受電側パッドの間隔が大きい場合、ギャップ内において、磁束が、本来流入出する方向に対して横方向に広がってしまう。そのため、磁束が流入出する積層コアの積層端面付近において、磁束が、本来流入出する方向に対して斜めに流入出するようになる。送電側パッドと受電側パッドの位置がずれた場合も同様に、磁束が流入出する積層コアの積層端面付近において、磁束が、本来流入出する方向に対して斜めに流入出するようになる。その結果、磁束が流入出する積層コアの積層端面付近において、渦電流が流れてしまい、渦電流損が増加してしまう。   When the distance between the power transmission side pad and the power reception side pad is large, the magnetic flux spreads in the lateral direction in the gap with respect to the direction in which it originally flows in and out. Therefore, in the vicinity of the laminated end face of the laminated core where the magnetic flux flows in and out, the magnetic flux flows in and out obliquely with respect to the direction in which the magnetic flux originally flows in and out. Similarly, when the positions of the power transmission side pad and the power reception side pad are shifted, the magnetic flux flows in and out obliquely with respect to the direction in which the magnetic flux originally flows in and out in the vicinity of the laminated end surface of the laminated core through which the magnetic flux flows in and out. As a result, an eddy current flows in the vicinity of the laminated end face of the laminated core through which the magnetic flux flows in and out, and the eddy current loss increases.

しかし、この構成によれば、１次側コアと２次側コアの積層コアの積層端面に、粉末状の磁性材を成形して構成される粉体コアが形成されている。そのため、磁束が本来流入出する方向に対して斜めに流入出しても、渦電流損を抑えることができる。   However, according to this structure, the powder core comprised by shape | molding a powdery magnetic material is formed in the lamination | stacking end surface of the lamination | stacking core of a primary side core and a secondary side core. Therefore, eddy current loss can be suppressed even when the magnetic flux flows in and out obliquely with respect to the original flow direction.

第１実施形態における非接触給電装置の回路図である。It is a circuit diagram of the non-contact electric power feeder in 1st Embodiment. 第１実施形態における送電側パッドの上面図である。It is a top view of the power transmission side pad in a 1st embodiment. 図２におけるIII−III矢視断面図である。It is the III-III arrow sectional drawing in FIG. 図２におけるIV−IV矢視断面図である。It is IV-IV arrow sectional drawing in FIG. 送電側パッドと受信側コイルが対向した状態における断面図である。It is sectional drawing in the state in which the power transmission side pad and the receiving side coil opposed. 送電側パッドと受信側コイルが対向した状態における別方向から見た断面図である。It is sectional drawing seen from the other direction in the state which the power transmission side pad and the receiving side coil opposed. 第１実施形態における送電側パッドと受電側パッドの磁束の流れを説明するための説明図である。It is explanatory drawing for demonstrating the flow of the magnetic flux of the power transmission side pad and power receiving side pad in 1st Embodiment. 従来の構成における送電側パッドと受電側パッドの磁束の流れを説明するための説明図である。It is explanatory drawing for demonstrating the flow of the magnetic flux of the power transmission side pad and power receiving side pad in the conventional structure. 第２実施形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in 2nd Embodiment. 第３実施形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in 3rd Embodiment. 第４実施形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in 4th Embodiment. 第４実施形態における送電側パッドの別方向から見た断面図である。It is sectional drawing seen from the other direction of the power transmission side pad in 4th Embodiment. 第４実施形態の変形形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in the modification of 4th Embodiment. 第４実施形態の変形形態における送電側パッドの別方向から見た断面図である。It is sectional drawing seen from the other direction of the power transmission side pad in the modification of 4th Embodiment. 第４実施形態の別の変形形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in another modification of 4th Embodiment. 第４実施形態の別の変形形態における送電側パッドの別方向から見た断面図である。It is sectional drawing seen from the other direction of the power transmission side pad in another modification of 4th Embodiment. 第５実施形態における送電側パッドの上面図である。It is a top view of the power transmission side pad in a 5th embodiment. 図１７における送電側パッドのXVIII-XVIII矢視断面図である。It is XVIII-XVIII arrow sectional drawing of the power transmission side pad in FIG. 図１７における送電側パッドのXIX−XIX矢視断面図である。It is XIX-XIX arrow directional cross-sectional view of the power transmission side pad in FIG. 第５実施形態の変形形態における送電側パッドの上面図である。It is a top view of the power transmission side pad in the modification of 5th Embodiment. 図２０における送電側パッドのXXI−XXI矢視断面図である。It is XXI-XXI arrow sectional drawing of the power transmission side pad in FIG. 図２０における送電側パッドのXXII−XXII矢視断面図である。It is XXII-XXII arrow sectional drawing of the power transmission side pad in FIG. 第６実施形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in 6th Embodiment. 第７実施形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in 7th Embodiment. 第７実施形態の変形形態における送電側パッドの断面図である。It is sectional drawing of the power transmission side pad in the modification of 7th Embodiment. 第８実施形態における送電側パッドの上面図である。It is a top view of the power transmission side pad in an 8th embodiment. 図２６における送電側パッドのXXVII−XXVII矢視断面図である。It is XXVII-XXVII arrow sectional drawing of the power transmission side pad in FIG. 図２６における送電側パッドのXXVIII−XXVIII矢視断面図である。It is XXVIII-XXVIII arrow sectional drawing of the power transmission side pad in FIG. 第８実施形態の変形形態における送電側パッドの上面図である。It is a top view of the power transmission side pad in the modification of 8th Embodiment. 図２９における送電側パッドのXXX−XXX矢視断面図である。It is XXX-XXX arrow directional cross-sectional view of the power transmission side pad in FIG. 図２９における送電側パッドのXXXI−XXXI矢視断面図である。It is XXXI-XXXI arrow sectional drawing of the power transmission side pad in FIG. 第９実施形態における送電側パッドの上面図である。It is a top view of the power transmission side pad in 9th Embodiment. 第９実施形態における送電側パッドの左側面図である。It is a left view of the power transmission side pad in 9th Embodiment. 第９実施形態における送電側パッドの下面である。It is a lower surface of the power transmission side pad in 9th Embodiment. 図３２における送電側パッドのXXXV−XXXV矢視断面図である。It is XXXV-XXXV arrow sectional drawing of the power transmission side pad in FIG.

次に、実施形態を挙げ、本発明をより詳しく説明する。本実施形態では、本発明に係る非接触給電装置を、電気自動車やハイブリッド車に搭載されたメインバッテリに非接触で送電する非接触給電装置に適用した例を示す。   Next, the present invention will be described in more detail with reference to embodiments. In the present embodiment, an example in which the non-contact power feeding device according to the present invention is applied to a non-contact power feeding device that transmits power in a non-contact manner to a main battery mounted on an electric vehicle or a hybrid vehicle is shown.

（第１実施形態）
まず、図１〜図６を参照して第１実施形態の非接触給電装置の構成について説明する。なお、図中における前後方向、左右方向及び上下方向は、車両における方向を示すものである。図５は、図２におけるIII−III矢視断面に相当する断面図である。図６は、図２におけるIV−IV矢視断面に相当する断面図である。 (First embodiment)
First, with reference to FIGS. 1-6, the structure of the non-contact electric power feeder of 1st Embodiment is demonstrated. In addition, the front-back direction, the left-right direction, and the up-down direction in a figure show the direction in a vehicle. FIG. 5 is a cross-sectional view corresponding to a cross section taken along the line III-III in FIG. FIG. 6 is a cross-sectional view corresponding to the cross section taken along the line IV-IV in FIG.

図１に示すように、電気自動車やハイブリッド車は、モータジェネレータＭＧと、メインバッテリＢ１と、インバータ回路ＩＮＶと、補機Ｓと、補機バッテリＢ２と、ＤＣ／ＤＣコンバータ回路ＣＮＶと、制御器ＣＮＴとを備えている。   As shown in FIG. 1, an electric vehicle or a hybrid vehicle includes a motor generator MG, a main battery B1, an inverter circuit INV, an auxiliary machine S, an auxiliary battery B2, a DC / DC converter circuit CNV, and a controller. CNT.

モータジェネレータＭＧは、３相交流電圧を供給することでモータとして動作し、車両の走行のための駆動力を発生する機器である。また、車両の減速時において、外部からの駆動力によって回転することでジェネレータとして動作し、３相交流電圧を発生する機器でもある。   The motor generator MG is a device that operates as a motor by supplying a three-phase AC voltage and generates a driving force for traveling of the vehicle. In addition, when the vehicle is decelerated, it is a device that operates as a generator by rotating with an external driving force and generates a three-phase AC voltage.

メインバッテリＢ１は、直流高電圧を出力する充放電可能な電源である。   The main battery B1 is a chargeable / dischargeable power source that outputs a DC high voltage.

インバータ回路ＩＮＶは、モータジェネレータＭＧがモータとして動作するとき、メインバッテリＢ１の出力する直流高電圧を３相交流電圧に変換してモータジェネレータＭＧに供給する回路である。また、モータジェネレータＭＧがジェネレータとして動作するとき、モータジェネレータＭＧの出力する３相交流電圧を直流高電圧に変換してメインバッテリＢ１に供給する回路でもある。   The inverter circuit INV is a circuit that converts the DC high voltage output from the main battery B1 into a three-phase AC voltage and supplies it to the motor generator MG when the motor generator MG operates as a motor. Further, when the motor generator MG operates as a generator, it is also a circuit that converts the three-phase AC voltage output from the motor generator MG into a DC high voltage and supplies it to the main battery B1.

補機Ｓは、直流低電圧を供給することで動作する空調装置や電動パワーステアリング装置等の周辺装置である。   The auxiliary machine S is a peripheral device such as an air conditioner or an electric power steering device that operates by supplying a DC low voltage.

補機バッテリＢ２は、直流低電圧を出力する充放電可能な電源である。   The auxiliary battery B2 is a chargeable / dischargeable power source that outputs a DC low voltage.

ＤＣ／ＤＣコンバータ回路ＣＮＶは、メインバッテリＢ１の出力する直流高電圧を直流低電圧に変換して補機バッテリＢ２及び補機Ｓに供給する回路である。   The DC / DC converter circuit CNV is a circuit that converts the DC high voltage output from the main battery B1 into a DC low voltage and supplies the converted voltage to the auxiliary battery B2 and the auxiliary machine S.

制御器ＣＮＴは、メインバッテリＢ１、補機バッテリＢ２及びモータジェネレータＭＧに関する情報に基づいて、インバータ回路ＩＮＶ、ＤＣ／ＤＣコンバータ回路ＣＮＶ及び補機Ｓを制御する装置である。   The controller CNT is a device that controls the inverter circuit INV, the DC / DC converter circuit CNV, and the auxiliary machine S based on information on the main battery B1, the auxiliary battery B2, and the motor generator MG.

非接触給電装置１は、車両の外部に設置された外部電源ＰＳから車両に搭載されたメインバッテリＢ１に非接触で送電し、メインバッテリＢ１を充電する装置である。非接触給電装置１は、送電回路１０と、送電側パッド１１と、受電側パッド１２と、受電回路１３とを備えている。   The non-contact power supply device 1 is a device that transmits power from an external power source PS installed outside the vehicle to a main battery B1 mounted on the vehicle in a non-contact manner and charges the main battery B1. The non-contact power feeding device 1 includes a power transmission circuit 10, a power transmission side pad 11, a power reception side pad 12, and a power reception circuit 13.

送電回路１０は、受電回路１３との間で無線通信によって情報を送受信し、受信した情報に基づいて外部電源ＰＳの出力する電圧を高周波の交流電圧に変換し、送電側パッド１１に印加する回路である。送電回路１０は、車両の外部に設置されている。   The power transmission circuit 10 is a circuit that transmits and receives information to and from the power reception circuit 13 by wireless communication, converts a voltage output from the external power source PS into a high-frequency AC voltage based on the received information, and applies the high-frequency AC voltage to the power transmission side pad 11 It is. The power transmission circuit 10 is installed outside the vehicle.

送電側パッド１１は、駐車スペース内に車両を駐車したときに車両の底部に設置された受電側パッド１３と対向する駐車スペース内の地表面の所定位置に設置され、電流が流れることで磁束を発生する装置である。図２〜図４に示すように、送電側パッド１１は、積層コア１１０と、粉体コア１１１と、巻線１１２、１１３とを備えている。   The power transmission side pad 11 is installed at a predetermined position on the ground surface in the parking space facing the power receiving side pad 13 installed at the bottom of the vehicle when the vehicle is parked in the parking space, and the magnetic flux is generated by the current flowing. It is a device that generates. As shown in FIGS. 2 to 4, the power transmission side pad 11 includes a laminated core 110, a powder core 111, and windings 112 and 113.

積層コア１１０は、磁路を構成する部材である。積層コア１１０は、板状の磁性材１１０ａによって構成されている。磁性材１１０ａは、例えば、珪素鋼板、電磁ステンレス板、板状のアモルファス又は板状のナノ結晶軟磁性材等である。積層コア１１０は、凹状に切断された板状の磁性材１１０ａを、板厚方向である左右方向に積層して構成されている。積層コア１１０の前側及び後側には、上方に突出する突出部１１０ｂ、１１０ｃが形成されている。また、突出部１１０ｂ、１１０ｃの間には、溝部１１０ｄが形成されている。   The laminated core 110 is a member constituting a magnetic path. The laminated core 110 is composed of a plate-like magnetic material 110a. The magnetic material 110a is, for example, a silicon steel plate, an electromagnetic stainless steel plate, a plate-like amorphous or plate-like nanocrystalline soft magnetic material, or the like. The laminated core 110 is configured by laminating a plate-like magnetic material 110a cut into a concave shape in the left-right direction which is the thickness direction. Protruding portions 110 b and 110 c that protrude upward are formed on the front side and the rear side of the laminated core 110. A groove 110d is formed between the protrusions 110b and 110c.

粉体コア１１１は、磁路を構成する部材である。粉体コア１１１は、粉末状の磁性材を成形して構成されている。磁性材は、例えば、粉末状のフェライト、センダスト、アモルファス又はナノ結晶磁性材等である。粉体コア１１１は、磁性材１１０ａの端面が積層された状態で構成される積層コア１１０の積層端面に板状に形成されている。具体的には、突出部１１０ｂ、１１０ｃの上面、溝部１１０ｄの底面及び前後壁面、積層コア１１０の下面及び前後面にそれぞれ板状に形成されている。粉体コア１１１は、粉末状の磁性材を、積層コア１１０と一体的に焼結、圧縮成形又は樹脂成形して構成されている。   The powder core 111 is a member constituting a magnetic path. The powder core 111 is formed by molding a powdered magnetic material. The magnetic material is, for example, powdered ferrite, sendust, amorphous, or nanocrystalline magnetic material. The powder core 111 is formed in a plate shape on the laminated end surface of the laminated core 110 configured in a state where the end surfaces of the magnetic material 110a are laminated. Specifically, it is formed in a plate shape on the upper surfaces of the projecting portions 110b and 110c, the bottom surface and front and rear wall surfaces of the groove portion 110d, and the lower surface and front and rear surfaces of the laminated core 110, respectively. The powder core 111 is configured by sintering, compression molding, or resin molding of a powdered magnetic material integrally with the laminated core 110.

巻線１１２、１１３は、電流が流れることで磁束を発生する部材である。例えば、電気抵抗の低いリッツ線からなる部材である。巻線１１２、１１３は、第１巻線部１１２ａ、１１３ａと、第２巻線部１１２ｂ、１１３ｂとを備え、矩形状に構成されている。   The windings 112 and 113 are members that generate magnetic flux when current flows. For example, a member made of a litz wire having a low electrical resistance. The windings 112 and 113 include first winding portions 112a and 113a and second winding portions 112b and 113b, and are configured in a rectangular shape.

第１巻線部１１２ａは、溝部１１０ｄの底面及び前壁面に沿って配置されている。第２配線部１１２ｂは、突出部１１０ｂの左側面、前面及び右側面に沿って配置されている。第１巻線部１１３ａは、溝部１１０ｄの底面及び後壁面に沿って配置されている。第２巻線部１１３ｂは、突出部１１０ｃの左側面、後面及び右側面に沿って配置されている。巻線１１２、１１３は、上面が突出部１１０ｂ、１１０ｃの上面に形成された粉体コア１１１の上面と一致するように設定されている。   The first winding portion 112a is disposed along the bottom surface and the front wall surface of the groove portion 110d. The second wiring part 112b is disposed along the left side, front side, and right side of the protruding part 110b. The first winding portion 113a is disposed along the bottom surface and the rear wall surface of the groove portion 110d. The second winding portion 113b is disposed along the left side surface, the rear surface, and the right side surface of the protruding portion 110c. The windings 112 and 113 are set so that the upper surfaces thereof coincide with the upper surfaces of the powder cores 111 formed on the upper surfaces of the protrusions 110b and 110c.

図１に示すように、受電側パッド１２は、車両の底部に設置され、駐車スペースに車両を駐車したときに上下方向に所定の間隔をあけて送電側パッドと対向し、送電側パッド１１の発生した磁束が鎖交することで電磁誘導によって誘導起電力を生じる装置である。図５及び図６に示すように、受電側パッド１２は、積層コア１２０と、粉体コア１２１と、巻線１２２、１２３とを備えている。受電側パッド１２は、送電側パッド１１と同一構成である。受電側パッド１２は、送電側パッド１１とは上下逆向きにした状態で車両の底部に設置されている。   As shown in FIG. 1, the power receiving side pad 12 is installed at the bottom of the vehicle, and when the vehicle is parked in the parking space, the power receiving side pad 12 faces the power transmitting side pad with a predetermined interval in the vertical direction. It is a device that generates an induced electromotive force by electromagnetic induction when the generated magnetic flux interlinks. As shown in FIGS. 5 and 6, the power receiving side pad 12 includes a laminated core 120, a powder core 121, and windings 122 and 123. The power receiving side pad 12 has the same configuration as the power transmitting side pad 11. The power receiving side pad 12 is installed on the bottom of the vehicle in a state where the power receiving side pad 11 is turned upside down with respect to the power transmitting side pad 11.

受電回路１３は、送電回路１０との間で無線通信によって情報を送受信し、受信した情報に基づいて受電側パッド１２の出力する交流電圧を直流電圧に変換し、メインバッテリＢ１を充電する回路である。   The power receiving circuit 13 is a circuit that transmits and receives information to and from the power transmitting circuit 10 by wireless communication, converts the AC voltage output from the power receiving side pad 12 to a DC voltage based on the received information, and charges the main battery B1. is there.

次に、図１、図５及び図６を参照して非接触給電装置の動作について説明する。   Next, the operation of the non-contact power feeding device will be described with reference to FIG. 1, FIG. 5, and FIG.

図１に示すように、駐車スペースに車両を駐車すると、送電側パッド１１と受電側パッド１３が上下方向に所定の間隔をあけて対向する。図５及び図６に示すように、送電側パッド１１の積層コア１１０の積層端面と、受電側パッド１２の積層コア１２０の積層端面が、上下方向に所定の間隔をあけて対向する。具体的には、突出部１１０ｂ、１１０ｃの上面の積層端面と、突出部１２０ｂ、１２０ｃの下面の積層端面が、上下方向に所定の間隔をあけて対向する。この状態で充電開始ボタン（図略）が押され、充電の開始が指示されると、送電回路１０と受電回路１３は、無線通信によって情報を送受信する。   As shown in FIG. 1, when a vehicle is parked in the parking space, the power transmission side pad 11 and the power reception side pad 13 face each other with a predetermined interval in the vertical direction. As shown in FIGS. 5 and 6, the laminated end surface of the laminated core 110 of the power transmission side pad 11 and the laminated end surface of the laminated core 120 of the power receiving side pad 12 face each other with a predetermined interval in the vertical direction. Specifically, the stacked end faces on the upper surfaces of the projecting portions 110b and 110c and the stacked end surfaces on the lower surfaces of the projecting portions 120b and 120c face each other at a predetermined interval in the vertical direction. In this state, when a charge start button (not shown) is pressed and the start of charging is instructed, the power transmission circuit 10 and the power reception circuit 13 transmit and receive information by wireless communication.

図１に示す送電回路１０は、受信した情報に基づいて外部電源ＰＳの出力する電圧を高周波の交流電圧に変換して送電側パッド１１に印加する。交流電圧が印加され、巻線１１２、１１３に交流電流が流れると、送電側パッド１１は磁束を発生する。   The power transmission circuit 10 shown in FIG. 1 converts the voltage output from the external power supply PS into a high-frequency AC voltage based on the received information and applies the high-frequency AC voltage to the power transmission side pad 11. When an AC voltage is applied and an AC current flows through the windings 112 and 113, the power transmission side pad 11 generates a magnetic flux.

図５及び図６において、送電側パッド１１の発生した磁束は、突出部１１０ｂの上面の積層端面から粉体コア１１１を経て流出し、粉体コア１２１を経て突出部１２０ｂの下面の積層端面に流入する。そして、突出部１２０ｃの下面の積層端面から粉体コア１２１を経て流出し、粉体コア１１１を経て突出部１１０ｃの上面の積層端面に流入する。その後、磁束の流れが反転する。送電側パッド１１の発生した磁束は、突出部１１０ｃの上面の積層端面から粉体コア１１１を経て流出し、粉体コア１２１を経て突出部１２０ｃの下面の積層端面に流入する。そして、突出部１２０ｂの下面の積層端面から粉体コア１２１を経て流出し、粉体コア１１１を経て突出部１１０ｂの上面の積層端面に流入する。   5 and 6, the magnetic flux generated by the power transmission side pad 11 flows out from the laminated end surface on the upper surface of the protruding portion 110b through the powder core 111, and passes through the powder core 121 to the laminated end surface on the lower surface of the protruding portion 120b. Inflow. And it flows out from the lamination | stacking end surface of the lower surface of the protrusion part 120c through the powder core 121, and flows in into the lamination | stacking end surface of the upper surface of the protrusion part 110c through the powder core 111. Thereafter, the flow of magnetic flux is reversed. The magnetic flux generated by the power transmission side pad 11 flows out from the laminated end surface on the upper surface of the projecting portion 110c through the powder core 111, and flows into the laminated end surface on the lower surface of the projecting portion 120c through the powder core 121. And it flows out from the lamination | stacking end surface of the lower surface of the protrusion part 120b through the powder core 121, and flows in into the lamination | stacking end surface of the upper surface of the protrusion part 110b through the powder core 111.

図１に示す受電側パッド１２は、送電側パッド１１の発生した磁束が鎖交することで、電磁誘導によって巻線１２２、１２３に誘導起電力を生じる。受電回路１３は、受信した情報に基づいて受電側パッド１３の出力する交流電圧を直流高電圧に変換してメインバッテリＢ１を充電する。   The power receiving side pad 12 shown in FIG. 1 generates an induced electromotive force in the windings 122 and 123 by electromagnetic induction when the magnetic flux generated by the power transmitting side pad 11 is linked. The power receiving circuit 13 converts the AC voltage output from the power receiving side pad 13 into a DC high voltage based on the received information, and charges the main battery B1.

次に、図１、図７及び図８を参照して効果について説明する。なお、図７及び図８は、図２におけるIV−IV矢視断面に相当する断面図である。   Next, an effect is demonstrated with reference to FIG.1, FIG7 and FIG.8. 7 and 8 are cross-sectional views corresponding to the cross section taken along the arrow IV-IV in FIG.

図１に示すように、送電側パッド１１は、駐車スペース内の地表面に設置されている。一方、受電側パッド１２は、車両の底部に設置されている。そのため、送電側パッド１１と受電側パッド１２の間隔が大きく、ギャップ内において、磁束が、本来流入出する上下方向に対して前後方向及び左右方向に広がってしまう。そのため、図７にその一部を示すように、突出部１１０ｂ、１１０ｃの上面、及び、突出部１２０ｂ、１２０ｃの下面の積層端面付近において、磁束が、本来流入出する上下方向に対して斜めに流入出するようになる。送電側パッド１１と受電側パッド１２の位置がずれた場合も同様に、突出部１１０ｂ、１１０ｃの上面、及び、突出部１２０ｂ、１２０ｃの下面の積層端面付近において、磁束が、本来流入出する上下方向に対して斜めに流入出するようになる。その結果、積層端面付近において渦電流が流れてしまい、渦電流損が増加してしまう。   As shown in FIG. 1, the power transmission side pad 11 is installed on the ground surface in the parking space. On the other hand, the power receiving side pad 12 is installed at the bottom of the vehicle. For this reason, the distance between the power transmission side pad 11 and the power reception side pad 12 is large, and the magnetic flux spreads in the front-rear direction and the left-right direction with respect to the vertical direction in which it originally flows in and out. Therefore, as shown in part in FIG. 7, the magnetic flux is inclined obliquely with respect to the vertical direction in which the magnetic flux originally flows in and out near the upper surface of the protruding portions 110 b and 110 c and the stacked end surfaces of the lower surfaces of the protruding portions 120 b and 120 c. It comes in and out. Similarly, when the positions of the power transmission side pad 11 and the power reception side pad 12 are shifted, the upper and lower sides where the magnetic flux originally flows in and out in the vicinity of the upper surface of the protrusions 110b and 110c and the stacked end surfaces of the lower surfaces of the protrusions 120b and 120c. It flows in and out at an angle to the direction. As a result, an eddy current flows in the vicinity of the laminated end face, and the eddy current loss increases.

しかし、第１実施形態によれば、送電側パッドと受電側パッドの積層コアの積層端面に、粉末状の磁性材を成形して構成される粉体コアが形成されている。そのため、車両の外部に設置される送電側パッドと、車両に搭載される受電コイルとを備え、車両の外部から車両に非接触で送電する非接触給電装置において、磁束が本来流入出する上下方向に対して斜めに流入出しても、渦電流を低減でき、渦電流損を抑えることができる。   However, according to 1st Embodiment, the powder core comprised by shape | molding a powdery magnetic material is formed in the lamination | stacking end surface of the lamination | stacking core of a power transmission side pad and a power receiving side pad. Therefore, in a non-contact power feeding device that includes a power transmission side pad installed outside the vehicle and a power receiving coil mounted on the vehicle and transmits power from the outside of the vehicle to the vehicle in a non-contact manner, the magnetic flux originally flows in and out Even if it flows in and out obliquely, eddy current can be reduced and eddy current loss can be suppressed.

また、粉体コアがない場合、磁束が、本来流入出する上下方向に対して前後方向及び左右方向に広がってしまうと、図８に示すように、磁束の集中する箇所が生じ、積層コアが磁気飽和しやすくなってしまう。しかし、第１実施形態によれば、粉体コアによって磁束を均等に分散させることができる。そのため、積層コアの磁気飽和を抑えることもできる。   In addition, when there is no powder core, when the magnetic flux spreads in the front-rear direction and the left-right direction with respect to the vertical direction in which it originally flows in and out, as shown in FIG. Magnetic saturation is likely to occur. However, according to the first embodiment, the magnetic flux can be evenly dispersed by the powder core. Therefore, magnetic saturation of the laminated core can be suppressed.

（第２実施形態）
次に、第２実施形態の非接触給電装置について説明する。第２実施形態の非接触給電装置は、第１実施形態の非接触給電装置に対して、送電側パッド及び受電側パッドの粉体コアを形成する積層端面を変更したものである。 (Second Embodiment)
Next, the non-contact power feeding device of the second embodiment will be described. The non-contact power feeding device of the second embodiment is obtained by changing the laminated end surfaces that form the powder cores of the power transmission side pad and the power receiving side pad with respect to the non-contact power feeding device of the first embodiment.

送電側パッド及び受電側パッド以外は、第１実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。   Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the first embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図９を参照して送電側パッドの構成について説明する。なお、図中における前後方向及び上下方向は、車両における方向を示すものである。図９は、図２におけるIII−III矢視断面に相当する断面図である。   The configuration of the power transmission side pad will be described with reference to FIG. In addition, the front-back direction and the up-down direction in a figure show the direction in a vehicle. 9 is a cross-sectional view corresponding to the cross section taken along the line III-III in FIG.

図９に示すように、送電側パッド２１は、積層コア２１０と、粉体コア２１１と、巻線２１２、２１３とを備えている。   As shown in FIG. 9, the power transmission side pad 21 includes a laminated core 210, a powder core 211, and windings 212 and 213.

積層コア２１０は、粉体コア２１１の形成箇所の変更に伴う寸法の違いを除いて、第１実施形態の積層コア１１０と同一構成である。   The laminated core 210 has the same configuration as that of the laminated core 110 of the first embodiment except for the difference in dimensions associated with the change in the location where the powder core 211 is formed.

粉体コア２１１は、積層コア２１０の積層端面のうち、受電側パッドの積層コアの積層端面と対向する積層端面に板状に形成されている。具体的には、突出部２１０ｂ、２１０ｃの上面、及び、溝部２１０ｄの底面にそれぞれ板状に形成されている。しかし、溝部２１０ｄの前後壁面、積層コア２１０の下面及び前後面には形成されていない。   The powder core 211 is formed in a plate shape on the laminated end face of the laminated core 210 that faces the laminated end face of the laminated core of the power receiving side pad. Specifically, it is formed in a plate shape on the top surfaces of the protruding portions 210b and 210c and the bottom surface of the groove portion 210d. However, they are not formed on the front and rear wall surfaces of the groove portion 210d, the lower surface and the front and rear surfaces of the laminated core 210.

巻線２１２、２１３は、第１実施形態の巻線１１２、１１３と同一構成である。   The windings 212 and 213 have the same configuration as the windings 112 and 113 of the first embodiment.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第２実施形態によれば、粉体コアは、送電側パッドと受電側パッドの積層コアの互いに対向する積層端面に形成されている。磁束は、主に、送電側パッドと受電側パッドの積層コアの互いに対向する積層端面に流入出する。そのため、渦電流損を抑えるとともに、送電側パッドと受電側パッドの積層コアの全ての積層端面に粉体コアを形成する場合に比べ、粉体コアの形成箇所を低減することができる。   Next, the effect will be described. According to the second embodiment, the powder core is formed on the stacked end faces of the stacked cores of the power transmission side pad and the power reception side pad that face each other. The magnetic flux mainly flows in and out of the laminated end faces of the laminated core of the power transmission side pad and the power receiving side pad that face each other. For this reason, eddy current loss can be suppressed, and the number of powder cores formed can be reduced as compared with the case where powder cores are formed on all laminated end faces of the laminated cores of the power transmission side pad and the power reception side pad.

（第３実施形態）
次に、第３実施形態の非接触給電装置について説明する。第３実施形態の非接触給電装置は、第２実施形態の非接触給電装置に対して、送電側パッド及び受電側パッドの粉体コアを形成する積層端面を変更したものである。 (Third embodiment)
Next, the non-contact electric power feeder of 3rd Embodiment is demonstrated. The non-contact power feeding device of the third embodiment is obtained by changing the laminated end surfaces that form the powder cores of the power transmission side pad and the power receiving side pad with respect to the non-contact power feeding device of the second embodiment.

送電側パッド及び受電側パッド以外は、第２実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。   Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the second embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図１０を参照して送電側パッドの構成について説明する。なお、図中における前後方向及び上下方向は、車両における方向を示すものである。図１０は、図２におけるIII−III矢視断面に相当する断面図である。   The configuration of the power transmission side pad will be described with reference to FIG. In addition, the front-back direction and the up-down direction in a figure show the direction in a vehicle. FIG. 10 is a cross-sectional view corresponding to the cross-section taken along the line III-III in FIG.

図１０に示すように、送電側パッド３１は、積層コア３１０と、粉体コア３１１と、巻線３１２、３１３とを備えている。   As shown in FIG. 10, the power transmission side pad 31 includes a laminated core 310, a powder core 311, and windings 312 and 313.

積層コア３１０は、粉体コア３１１の形成箇所の変更に伴う寸法の違いを除いて、第２実施形態の積層コア２１０と同一構成である。   The laminated core 310 has the same configuration as that of the laminated core 210 of the second embodiment, except for the difference in dimensions due to the change in the location where the powder core 311 is formed.

粉体コア３１１は、積層コア３１０の積層端面のうち、受電側パッドの積層コアの積層端面と対向する積層端面であって、巻線３１２、３１３が配置される積層端面以外の積層端面に板状に形成されている。具体的には、突出部３１０ｂ、３１０ｃの上面にそれぞれ板状に形成されている。しかし、溝部３１０ｄの底面には形成されていない。   The powder core 311 is a laminated end face that faces the laminated end face of the laminated core of the power receiving pad among the laminated end faces of the laminated core 310, and is placed on the laminated end face other than the laminated end face on which the windings 312 and 313 are arranged. It is formed in a shape. Specifically, each of the protrusions 310b and 310c is formed in a plate shape on the upper surface. However, it is not formed on the bottom surface of the groove 310d.

巻線３１２、３１３は、第２実施形態の巻線２１２、２１３と同一構成である。   The windings 312 and 313 have the same configuration as the windings 212 and 213 of the second embodiment.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第３実施形態によれば、粉体コアは、送電側パッドと受電側パッドの積層コアの互いに対向する積層端面のうち、巻線が配置される積層端面以外の積層端面に形成されている。前述したように、磁束は、主に、送電側パッドと受電側パッドの積層コアの互いに対向する積層端面に流入出する。しかし、送電側パッドと受電側パッドの積層コアの互いに対向する積層端面であっても、巻線が配置される積層端面に流入出することはほとんどない。そのため、渦電流損を抑えるとともに、送電側パッドと受電側パッドの積層コアの互いに対向する全ての積層端面に粉体コアを形成する場合に比べ、粉体コアの形成箇所を低減することができる。   Next, the effect will be described. According to 3rd Embodiment, the powder core is formed in lamination | stacking end surfaces other than the lamination | stacking end surface in which a coil | winding is arrange | positioned among the lamination | stacking end surfaces of the lamination | stacking core of a power transmission side pad and a receiving side pad which mutually oppose. As described above, the magnetic flux mainly flows in and out of the laminated end faces of the laminated cores of the power transmission side pad and the power receiving side pad facing each other. However, even the laminated end surfaces of the laminated cores of the power transmission side pad and the power receiving side pad that face each other hardly flow into and out of the laminated end surface on which the winding is disposed. Therefore, it is possible to suppress eddy current loss and reduce the number of powder cores formed as compared with the case where powder cores are formed on all the laminated end faces of the laminated cores of the power transmission side pad and the power reception side pad. .

なお、第３実施形態では、粉体コア３１１が、突出部３１０ｂ、３１０ｃの上面に薄い板状に形成されている例を挙げているが、これに限られるものではない。突出部３１０ｂ、３１０ｃを、板状の磁性材を積層して構成するのではなく、粉体コア３１１で形成するようにしてもよい。   In the third embodiment, an example is given in which the powder core 311 is formed in a thin plate shape on the upper surfaces of the protrusions 310b and 310c. However, the present invention is not limited to this. The protrusions 310b and 310c may be formed by the powder core 311 instead of being configured by laminating plate-like magnetic materials.

（第４実施形態）
次に、第４実施形態の非接触給電装置について説明する。第４実施形態の非接触給電装置は、第３実施形態の非接触給電装置に対して、送電側パッド及び受電側パッドの粉体コアを形成する領域を変更したものである。 (Fourth embodiment)
Next, the non-contact electric power feeder of 4th Embodiment is demonstrated. The contactless power supply device according to the fourth embodiment is obtained by changing the areas where the powder cores of the power transmission side pad and the power reception side pad are formed with respect to the contactless power supply device of the third embodiment.

送電側パッド及び受電側パッド以外は、第３実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。   Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the third embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図１１及び図１２を参照して送電側パッドの構成について説明する。なお、図中における前後方向、左右方向及び上下方向は、車両における方向を示すものである。図１１は、図２におけるIII−III矢視断面に相当する断面図である。図１２は、図２におけるIV−IV矢視断面に相当する断面図である。   The configuration of the power transmission side pad will be described with reference to FIGS. 11 and 12. In addition, the front-back direction, the left-right direction, and the up-down direction in a figure show the direction in a vehicle. 11 is a cross-sectional view corresponding to the cross section taken along the line III-III in FIG. 12 is a cross-sectional view corresponding to the cross section taken along the line IV-IV in FIG.

図１１及び図１２に示すように、送電側パッド４１は、積層コア４１０と、粉体コア４１１と、巻線４１２、４１３とを備えている。   As shown in FIGS. 11 and 12, the power transmission side pad 41 includes a laminated core 410, a powder core 411, and windings 412 and 413.

積層コア４１０は、第３実施形態の積層コア３１０と同一構成である。   The laminated core 410 has the same configuration as the laminated core 310 of the third embodiment.

粉体コア４１１は、積層コア４１０の積層端面のうち、受電側パッドの積層コアの積層端面と対向する積層端面であって、巻線４１２、４１３が配置される積層端面以外の積層端面に、対向方向である上下方向から見たときに、その積層端面より広い領域を占めるように板状に形成されている。具体的には、突出部４１０ｂの上面に形成されるとともに、突出部４１０ｂの上面から前方及び左右方向に延在するように板状に形成されている。また、突出部４１０ｃの上面に形成されるとともに、突出部４１０ｃの上面から後方及び左右方向に延在するように板状に形成されている。   The powder core 411 is a laminated end face of the laminated core 410 that faces the laminated end face of the laminated core of the power receiving side pad, and is disposed on a laminated end face other than the laminated end face on which the windings 412 and 413 are disposed. It is formed in a plate shape so as to occupy a region wider than the laminated end face when viewed from the up-down direction which is the facing direction. Specifically, it is formed on the upper surface of the protruding portion 410b and is formed in a plate shape so as to extend forward and in the left-right direction from the upper surface of the protruding portion 410b. Moreover, it is formed in the upper surface of the protrusion part 410c, and is formed in plate shape so that it may extend back and the left-right direction from the upper surface of the protrusion part 410c.

巻線４１２、４１３は、第１巻線部４１２ａ、４１３ａと、第２巻線部４１２ｂ、４１３ｂとを備え、矩形状に構成されている。   The windings 412 and 413 include first winding portions 412a and 413a and second winding portions 412b and 413b, and are configured in a rectangular shape.

第１巻線部４１２ａは、溝部４１０ｄの底面及び前壁面に沿って配置されている。第２配線部４１２ｂは、粉体コア４１１の左側面、前面及び右側面に沿って配置されている。第１巻線部４１３ａは、溝部４１０ｄの底面及び後壁面に沿って配置されている。第２巻線部４１３ｂは、粉体コア１１１の左側面、後面及び右側面に沿って配置されている。巻線４１２、４１３は、上面が粉体コア４１１の上面と一致するように設定されている。   The first winding portion 412a is disposed along the bottom surface and the front wall surface of the groove portion 410d. The second wiring portion 412b is disposed along the left side surface, front surface, and right side surface of the powder core 411. The first winding portion 413a is disposed along the bottom surface and the rear wall surface of the groove portion 410d. The second winding portion 413b is disposed along the left side surface, the rear surface, and the right side surface of the powder core 111. The windings 412 and 413 are set so that the upper surface coincides with the upper surface of the powder core 411.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第４実施形態によれば、粉体コアは、積層端面よりも広い領域を占めるように形成されている。そのため、上下方向に対して斜めに流入出する磁束が広範囲に渡って形成されても、渦電流損を抑えることができる。   Next, the effect will be described. According to the fourth embodiment, the powder core is formed so as to occupy a wider area than the laminated end face. Therefore, even if the magnetic flux flowing in and out obliquely with respect to the vertical direction is formed over a wide range, eddy current loss can be suppressed.

なお、第４実施形態では、第２巻線部４１２ｂ。４１３ｂが、粉体コア４１１の前後面及び左右側面に沿って配置されるとともに、巻線４１２、４１３の上面が、粉体コア４１１の上面と一致するように設定されている例を挙げているが、これに限られるものではない。図１３及び図１４に示すように、第２巻線部４１２ｂが突出部４１０ｂの左側面、前面及び右側面の前後面に沿って、第２巻線部４１３ｂが突出部４１０ｃの左側面、後面及び右側面に沿ってそれぞれ配置されるようにしてもよい。さらに、図１５及び図１６に示すように、巻線４１２、４１３の上面が、突出部４１０ｂ、４１０ｃの上面とそれぞれ一致するように設定されていてもよい。   In the fourth embodiment, the second winding portion 412b. 413b is arranged along the front and rear surfaces and the left and right side surfaces of the powder core 411, and the upper surface of the windings 412 and 413 is set to coincide with the upper surface of the powder core 411. However, it is not limited to this. As shown in FIGS. 13 and 14, the second winding portion 412b is along the left side of the protruding portion 410b, the front surface and the front and back surfaces of the right side, and the second winding portion 413b is the left side of the protruding portion 410c, the rear surface. And may be arranged along the right side surface. Further, as shown in FIGS. 15 and 16, the upper surfaces of the windings 412 and 413 may be set so as to coincide with the upper surfaces of the protrusions 410b and 410c, respectively.

（第５実施形態）
次に、第５実施形態の非接触給電装置について説明する。第５実施形態の非接触給電装置は、第３実施形態の非接触給電装置に対して、送電側パッド及び受電側パッドの粉体コアを分散して形成するようにしたものである。 (Fifth embodiment)
Next, the non-contact electric power feeder of 5th Embodiment is demonstrated. The non-contact power supply device of the fifth embodiment is formed by dispersing the powder cores of the power transmission side pad and the power reception side pad with respect to the non-contact power supply device of the third embodiment.

送電側パッド及び受電側パッド以外は、第３実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。   Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the third embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図１７〜図１９を参照して送電側パッドの構成について説明する。なお、図中における前後方向、左右方向及び上下方向は、車両における方向を示すものである。   The configuration of the power transmission side pad will be described with reference to FIGS. In addition, the front-back direction, the left-right direction, and the up-down direction in a figure show the direction in a vehicle.

図１７〜図１９に示すように、送電側パッド５１は、積層コア５１０と、粉体コア５１１と、巻線５１２、５１３とを備えている。   As shown in FIGS. 17 to 19, the power transmission side pad 51 includes a laminated core 510, a powder core 511, and windings 512 and 513.

積層コア５１０は、第３実施形態の積層コア３１０と同一構成である。   The laminated core 510 has the same configuration as the laminated core 310 of the third embodiment.

粉体コア５１１は、積層コア５１０の積層端面のうち、受電側パッドの積層コアの積層端面と対向する積層端面であって、巻線５１２、５１３が配置される積層端面以外の積層端面に、間隔をあけて分散して矩形板状に形成されている。具体的には、突出部５１０ｂ、５１０ｃの上面に、前後方向及び左右方向に所定の間隔をあけ、６箇所に分散してそれぞれ矩形板状に形成されている。分散した粉体コア５１１の間隔Ｄ１は、粉体コア５１１の厚さＤ２の２倍以下となるように設定されている。   The powder core 511 is a laminated end face that faces the laminated end face of the laminated core of the power receiving side pad among the laminated end faces of the laminated core 510, and is disposed on a laminated end face other than the laminated end face on which the windings 512 and 513 are disposed. It is formed in a rectangular plate shape with a gap therebetween. Specifically, the upper surfaces of the protrusions 510b and 510c are formed in a rectangular plate shape with predetermined intervals in the front-rear direction and the left-right direction, and dispersed in six places. The distance D1 between the dispersed powder cores 511 is set to be not more than twice the thickness D2 of the powder core 511.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第５実施形態によれば、粉体コアは、間隔をあけて分散して形成されている。そのため、粉体コアの形成箇所を低減することができる。   Next, the effect will be described. According to the fifth embodiment, the powder cores are formed in a dispersed manner at intervals. Therefore, the formation location of a powder core can be reduced.

また、第５実施形態によれば、粉体コアの間隔が、粉体コアの厚さの２倍以下に設定されている。粉体コアの間隔Ｄ１が、粉体コアの厚さＤ２の２倍以下であれば、磁束は、粉体コアの形成されていない積層端面でなく、粉体コアに流入する。そのため、渦電流損を抑えつつ、粉体コアの形成箇所を低減することができる。   Further, according to the fifth embodiment, the interval between the powder cores is set to be twice or less the thickness of the powder core. If the distance D1 between the powder cores is equal to or less than twice the thickness D2 of the powder core, the magnetic flux flows into the powder core instead of the laminated end surface where the powder core is not formed. Therefore, it is possible to reduce the number of locations where the powder core is formed while suppressing eddy current loss.

なお、第５実施形態では、粉体コア５１１が、前後方向及び左右方向に所定の間隔をあけて分散して配置されている例を挙げているが、これに限られるものではない。図２０〜図２２に示すように、粉体コア５１１が、前後方向だけに所定の間隔をあけて分散して配置されるようにしてもよい。この場合、積層された全ての磁性材に連続した粉体コアが形成されることになる。そのため、粉体コアによって、積層された全ての磁性材に磁束を均等に分散させることができる。従って、積層コアの磁気飽和を確実に抑えることができる。   In the fifth embodiment, an example is given in which the powder cores 511 are dispersed and arranged at predetermined intervals in the front-rear direction and the left-right direction, but the present invention is not limited to this. As shown in FIGS. 20 to 22, the powder cores 511 may be dispersed and arranged at predetermined intervals only in the front-rear direction. In this case, a continuous powder core is formed on all the laminated magnetic materials. Therefore, the magnetic core can be evenly dispersed in all the laminated magnetic materials by the powder core. Therefore, magnetic saturation of the laminated core can be reliably suppressed.

（第６実施形態）
次に、第６実施形態の非接触給電装置について説明する。第６実施形態の非接触給電装置は、第３実施形態の非接触給電装置に対して、送電側パッド及び受電側パッドの粉体コアの形成の仕方を変更したものである。 (Sixth embodiment)
Next, the non-contact electric power feeder of 6th Embodiment is demonstrated. The contactless power supply device of the sixth embodiment is obtained by changing the method of forming the powder cores of the power transmission side pad and the power reception side pad with respect to the contactless power supply device of the third embodiment.

送電側パッド及び受電側パッド以外は、第３実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。   Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the third embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図２３を参照して送電側パッドの構成について説明する。なお、図中における前後方向及び上下方向は、車両における方向を示すものである。図２３は、図２におけるIII−III矢視断面に相当する断面図である。   The configuration of the power transmission side pad will be described with reference to FIG. In addition, the front-back direction and the up-down direction in a figure show the direction in a vehicle. 23 is a cross-sectional view corresponding to the cross section taken along the line III-III in FIG.

図２３に示すように、送電側パッド６１は、積層コア６１０と、粉体コア６１１と、巻線６１２、６１３とを備えている。   As shown in FIG. 23, the power transmission side pad 61 includes a laminated core 610, a powder core 611, and windings 612 and 613.

積層コア６１０は、第３実施形態の積層コア３１０と同一構成である。   The laminated core 610 has the same configuration as the laminated core 310 of the third embodiment.

粉体コア６１１は、積層コア６１０の積層端面のうち、受電側パッドの積層コアの積層端面と対向する積層端面であって、巻線６１２、６１３が配置される積層端面以外の積層端面に板状に形成されている。具体的には、突出部６１０ｂ、６１０ｃの上面に適合するような形状に、粉末状の磁性材を焼結、圧縮成形又は樹脂成形して構成されている。そして、粉末状の磁性材を混合した、硬化前には積層コア６１０及び粉体コア６１１より柔らかい接着材６１１ａによって突出部６１０ｂ、６１０ｃの上面に固定されている。接着材６１１ａに混合する磁性材は、例えば、粉末状のフェライト、センダスト、アモルファス又はナノ結晶磁性材等である。   The powder core 611 is a laminated end face that faces the laminated end face of the laminated core of the power receiving side pad among the laminated end faces of the laminated core 610, and is disposed on the laminated end face other than the laminated end face on which the windings 612 and 613 are disposed. It is formed in a shape. Specifically, the powdery magnetic material is sintered, compression-molded, or resin-molded into a shape that fits the upper surfaces of the protrusions 610b and 610c. The powdered magnetic material is mixed and fixed to the upper surfaces of the protruding portions 610b and 610c by an adhesive 611a softer than the laminated core 610 and the powder core 611 before curing. The magnetic material mixed with the adhesive 611a is, for example, powdered ferrite, sendust, amorphous, or nanocrystalline magnetic material.

巻線６１２、６１３は、第３実施形態の巻線３１２、３１３と同一構成である。   The windings 612 and 613 have the same configuration as the windings 312 and 313 of the third embodiment.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。磁性材の端面が積層された状態で構成される積層コアの積層端面は、磁性材の寸法のばらつきによって凹凸がある。この積層端面に、粉体コアを固定すると、ギャップを生じて磁気抵抗が高くなってしまう。また、接着材によって粉体コアを固定しても同様である。しかし、第６実施形態によれば、粉体コアは、粉末状の磁性材を混合した接着材によって固定されている。そのため、磁気抵抗の増加を抑えることができる。   Next, the effect will be described. The laminated end face of the laminated core configured with the end faces of the magnetic material being laminated has irregularities due to variations in the dimensions of the magnetic material. When the powder core is fixed to the laminated end face, a gap is generated and the magnetic resistance is increased. The same is true even if the powder core is fixed by an adhesive. However, according to the sixth embodiment, the powder core is fixed by the adhesive mixed with the powdery magnetic material. Therefore, an increase in magnetic resistance can be suppressed.

なお、第６実施形態では、粉体コア６１１と積層端面の間に、粉末状の磁性材を混合した、硬化前には積層コア６１０及び粉体コア６１１より柔らかい接着材６１１ａを有する例を挙げているが、これに限られるものではない。粉末状の磁性材を混合したゴムであってもよい。積層コア６１０及び粉体コア６１１より柔らかい部材であればよい。粉体コア６１１と積層端面の間に配設する際に積層コア６１０及び粉体コア６１１より柔らかければ、その後に硬化してもよい、
（第７実施形態）
次に、第７実施形態の非接触給電装置について説明する。送電側パッド及び受電側パッド以外は、第１実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。 In addition, in 6th Embodiment, the example which has the adhesive material 611a softer than the lamination | stacking core 610 and the powder core 611 before hardening which mixed the powdery magnetic material between the powder core 611 and the lamination | stacking end surface is given. However, it is not limited to this. It may be a rubber mixed with a powdery magnetic material. Any member that is softer than the laminated core 610 and the powder core 611 may be used. If it is softer than the laminated core 610 and the powder core 611 when disposed between the powder core 611 and the laminated end face, it may be cured thereafter.
(Seventh embodiment)
Next, the non-contact electric power feeder of 7th Embodiment is demonstrated. Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the first embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図２４を参照して送電側パッドの構成について説明する。なお、図中における前後方向及び上下方向は、車両における方向を示すものである。図２４は、図２におけるIII−III矢視断面に相当する断面図である。   The configuration of the power transmission side pad will be described with reference to FIG. In addition, the front-back direction and the up-down direction in a figure show the direction in a vehicle. 24 is a cross-sectional view corresponding to the cross section taken along the line III-III in FIG.

図２４に示すように、送電側パッド７１は、積層コア７１０と、粉体コア７１１と、巻線７１２、７１３とを備えている。   As illustrated in FIG. 24, the power transmission side pad 71 includes a laminated core 710, a powder core 711, and windings 712 and 713.

積層コア７１０は、矩形状に切断された板状の磁性材７１０ａを、板厚方向である上下方向に積層して構成されている。   The laminated core 710 is configured by laminating a plate-shaped magnetic material 710a cut into a rectangular shape in the vertical direction, which is the thickness direction.

粉体コア７１１は、積層コア７１０の積層端面に直方体状に形成されている。具体的には、積層コア７１０前後面にそれぞれ直方体状に形成されている。粉体コア７１１は、積層コア７１０の上面より上方に突出する突出部７１１ａ、７１１ｂを有している。   The powder core 711 is formed in a rectangular parallelepiped shape on the laminated end surface of the laminated core 710. Specifically, it is formed in a rectangular parallelepiped shape on the front and rear surfaces of the laminated core 710, respectively. The powder core 711 has projecting portions 711 a and 711 b that project upward from the upper surface of the laminated core 710.

巻線７１２、７１３は、第１巻線部７１２ａ、７１３ａと、第２巻線部７１２ｂ、７１３ｂとを備え、矩形状に構成されている。   The windings 712 and 713 include first winding portions 712a and 713a and second winding portions 712b and 713b, and are configured in a rectangular shape.

第１巻線部７１２ａは、積層コア７１０の上面に沿って配置されている。第２配線部７１２ｂは、突出部７１１ａの左側面、前面及び右側面に沿って配置されている。 第１巻線部７１３ａは、第１巻線部７１２ａの後側の積層コア７１０の上面に沿って配置されている。第２巻線部７１３ｂは、突出部７１１ｂの左側面、後面及び右側面に沿って配置されている。巻線７１２、７１３は、上面が突出部７１１ａ、７１１ｂの上面と一致するように設定されている。   The first winding portion 712 a is disposed along the upper surface of the laminated core 710. The second wiring part 712b is disposed along the left side, front side, and right side of the protruding part 711a. The first winding portion 713a is disposed along the upper surface of the laminated core 710 on the rear side of the first winding portion 712a. The second winding portion 713b is disposed along the left side surface, the rear surface, and the right side surface of the protruding portion 711b. The windings 712 and 713 are set so that the upper surfaces thereof coincide with the upper surfaces of the protruding portions 711a and 711b.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第７実施形態によれば、第１〜第３実施形態と同様の効果を得ることができる。また、積層コア７１０の左右方向の寸法（図略）が上下方向の寸法より大きい場合には、第１〜第５実施形態のように、磁性材を左右方向に積層する場合に比べ、積層コア７０１を構成する磁性材７１０ａの枚数を抑えることができる。そのため、積層コア７１０の生産性を向上させることができる。   Next, the effect will be described. According to the seventh embodiment, the same effects as those of the first to third embodiments can be obtained. Further, when the horizontal dimension (not shown) of the laminated core 710 is larger than the vertical dimension, the laminated core is compared with the case of laminating magnetic materials in the horizontal direction as in the first to fifth embodiments. The number of magnetic materials 710a constituting 701 can be suppressed. Therefore, the productivity of the laminated core 710 can be improved.

なお、第７実施形態では、積層コア７１０の前後面が、上下方向に垂直に形成されている例を挙げているが、これに限られるものではない。図２５に示すように、積層コア７１０の前後面が、斜めに傾斜するように形成されていてもよい。この場合、積層コア７１０と粉体コア７１１の接合面積を充分に確保することができる。そのため、接合部分に生じるギャップの影響を抑えることができる。   In the seventh embodiment, an example in which the front and rear surfaces of the laminated core 710 are formed perpendicular to the vertical direction is described, but the present invention is not limited to this. As shown in FIG. 25, the front and rear surfaces of the laminated core 710 may be formed to be inclined obliquely. In this case, a sufficient bonding area between the laminated core 710 and the powder core 711 can be secured. Therefore, it is possible to suppress the influence of the gap generated at the joint portion.

（第８実施形態）
次に、第８実施形態の非接触給電装置について説明する。送電側パッド及び受電側パッド以外は、第１実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。 (Eighth embodiment)
Next, the non-contact electric power feeder of 8th Embodiment is demonstrated. Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the first embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図２６〜図２８を参照して送電側パッドの構成について説明する。なお、図中における前後方向、左右方向及び上下方向は、車両における方向を示すものである。   The configuration of the power transmission side pad will be described with reference to FIGS. In addition, the front-back direction, the left-right direction, and the up-down direction in a figure show the direction in a vehicle.

図２６〜図２８に示すように、送電側パッド８１は、積層コア８１０と、粉体コア８１１と、巻線８１２とを備えている。   As shown in FIGS. 26 to 28, the power transmission side pad 81 includes a laminated core 810, a powder core 811, and a winding 812.

積層コア８１０は、矩形状に切断された板状の磁性材８１０ａを、板厚方向である左右方向に積層して構成されている。   The laminated core 810 is configured by laminating a plate-like magnetic material 810a cut into a rectangular shape in the left-right direction which is the plate thickness direction.

粉体コア８１１は、積層コア８１０の積層端面に板状に形成されている。具体的には、積層コア８１０前後面及び上下面にそれぞれ板状に形成されている。   The powder core 811 is formed in a plate shape on the laminated end surface of the laminated core 810. Specifically, the laminated core 810 is formed in a plate shape on each of the front and rear surfaces and the upper and lower surfaces.

巻線８１２は、積層コア８１０の上下面及び左右側面に沿って巻回して構成されている。   The winding 812 is configured by winding along the upper and lower surfaces and the left and right side surfaces of the laminated core 810.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第８実施形態によれば、第１実施形態と同様の効果を得ることができる。   Next, the effect will be described. According to the eighth embodiment, the same effect as that of the first embodiment can be obtained.

なお、第８実施形態では、積層コア８１０が、矩形状に切断された板状の磁性材８１０ａを、板厚方向である左右方向に積層して構成されている例を挙げているが、これに限られるものではない。図２９〜図３１に示すように、積層コア８１０は、帯状に切断された板状の磁性材８１０ａを板厚方向に積層されるように巻回して構成してもよい。   In the eighth embodiment, an example is given in which the laminated core 810 is configured by laminating plate-like magnetic materials 810a cut into a rectangular shape in the left-right direction, which is the plate thickness direction. It is not limited to. As shown in FIGS. 29 to 31, the laminated core 810 may be configured by winding a plate-like magnetic material 810 a cut into a strip shape so as to be laminated in the plate thickness direction.

（第９実施形態）
次に、第９実施形態の非接触給電装置について説明する。送電側パッド及び受電側パッド以外は、第１実施形態の非接触給電装置と同一構成であるので説明を省略する。また、送電側パッドと同一構成であり、上下逆向きに設置される受電側パッドについても説明を省略する。 (Ninth embodiment)
Next, the non-contact electric power feeder of 9th Embodiment is demonstrated. Since the configuration other than the power transmission side pad and the power reception side pad is the same as that of the non-contact power feeding device of the first embodiment, the description thereof is omitted. Moreover, description is abbreviate | omitted also about the power receiving side pad installed in the same direction as the power transmission side pad and upside down.

図３２〜図３５を参照して送電側パッドの構成について説明する。なお、図中における前後方向及び上下方向は、車両における方向を示すものである。   The configuration of the power transmission side pad will be described with reference to FIGS. In addition, the front-back direction and the up-down direction in a figure show the direction in a vehicle.

図３２〜図３５に示すように、送電側パッド９１は、複数の積層コア９１０と、粉体コア９１１と、巻線９１２とを備えている。   As shown in FIGS. 32 to 35, the power transmission side pad 91 includes a plurality of laminated cores 910, a powder core 911, and a winding 912.

積層コア９１０は、矩形状に切断された板状の磁性材９１０ａを、板厚方向に積層して構成されている。積層コア９１０は、積層端面を上方及び下方に向けた状態で放射状に配置されている。   The laminated core 910 is configured by laminating plate-like magnetic materials 910a cut into a rectangular shape in the thickness direction. The laminated cores 910 are arranged radially with the laminated end faces directed upward and downward.

粉体コア９１１は、積層コア９１０の積層端面のうち、受電側パッドの積層コアの積層端面と対向する積層端面であって、巻線９１２が配置される積層端面以外の積層端面に板状に形成されている。具体的には、放射上に配置された積層コア９１０上面に２重の同心円板状に形成されている。   The powder core 911 is a laminated end surface facing the laminated end surface of the laminated core of the power receiving side pad among the laminated end surfaces of the laminated core 910, and is formed in a plate shape on the laminated end surface other than the laminated end surface on which the winding 912 is disposed Is formed. Specifically, it is formed in a double concentric disk shape on the upper surface of the laminated core 910 arranged on the radiation.

巻線９１２は、粉体コア９１１が形成されていない放射状に配置された積層コア９１０の上面に沿って円形状に配置されている。   The windings 912 are arranged in a circular shape along the top surface of the laminated cores 910 that are arranged radially without the powder core 911 formed.

動作については、第１実施形態と同一であるため説明を省略する。   About operation | movement, since it is the same as 1st Embodiment, description is abbreviate | omitted.

次に、効果について説明する。第９実施形態によれば、第１〜第３実施形態と同様の効果を得ることができる。   Next, the effect will be described. According to the ninth embodiment, the same effects as those of the first to third embodiments can be obtained.

なお、第１〜第９実施形態では、それぞれ、受信側コイルが、送信側コイルと同一構成である例を挙げているが、これに限られるものではない。受信側コイルは、送信側コイルと同一構成でなくてもよい。例えば、第１実施形態の送信側コイルに対して、第２〜第９実施形態の送電側パッドと同一構成の受電側パッドを用いてもよい。第１〜第９実施形態の送信側コイルに対して、第１〜第９実施形態の送電側パッドと同一構成の受信側コイルを相互に組合せて用いることができる。   In the first to ninth embodiments, the receiving side coil has the same configuration as the transmitting side coil. However, the present invention is not limited to this. The reception side coil may not have the same configuration as the transmission side coil. For example, you may use the receiving side pad of the same structure as the power transmission side pad of 2nd-9th embodiment with respect to the transmission side coil of 1st Embodiment. For the transmission side coils of the first to ninth embodiments, reception side coils having the same configuration as the power transmission side pads of the first to ninth embodiments can be used in combination with each other.

さらに、第１〜第９実施形態では、送電側パッドが駐車スペースの地表面に、受電側パッドが車両の底部にそれぞれ設置されている例を挙げているが、これに限られるものではない。送電側パッドは、道路の路面、建物の床面、及び、地中に設置されていてもよい。また、建物の壁面や天井に設置されていてもよい。その場合、受電側パッドが、車両の側面や天井面に設置されていれば同様に送電することができる。   Furthermore, in the first to ninth embodiments, the power transmission side pad is installed on the ground surface of the parking space, and the power reception side pad is installed on the bottom of the vehicle. However, the present invention is not limited to this. The power transmission side pad may be installed on the road surface of the road, the floor surface of the building, and the ground. Moreover, you may install in the wall surface and ceiling of a building. In that case, if the power receiving side pad is installed on the side surface or ceiling surface of the vehicle, power can be transmitted in the same manner.

１・・・非接触給電装置、１０・・・送電回路、１１・・・送電側パッド、１１０・・・積層コア、１１０ａ・・・磁性材、１１０ｂ、１１０ｃ・・・突出部、１１０ｄ・・・溝部、１１１・・・粉体コア、１１２、１１３・・・巻線、１１２ａ、１１３ａ・・・第１巻線部、１１２ｂ、１１３ｂ・・・第２巻線部、１２・・・受電側パッド、１３・・・受電回路 DESCRIPTION OF SYMBOLS 1 ... Non-contact electric power feeder, 10 ... Power transmission circuit, 11 ... Power transmission side pad, 110 ... Laminated core, 110a ... Magnetic material, 110b, 110c ... Projection part, 110d ... -Groove part, 111 ... powder core, 112, 113 ... winding, 112a, 113a ... first winding part, 112b, 113b ... second winding part, 12 ... power receiving side Pad, 13 ... Power receiving circuit

Claims (8)

板状の磁性材（１１０ａ）を板厚方向に積層して構成される積層コア（１１０）と、前記積層コアに沿って配置される巻線（１１２、１１３）とを有する送電側パッド（１１）、及び受電側パッド（１２）を備え、前記磁性材の端面が積層された状態で構成される前記積層コアの積層端面に、磁束が流入出することで、前記送電側パッドから前記受電側パッドに非接触で送電する非接触給電装置において、
前記送電側パッドと前記受電側パッドの前記積層コアの前記積層端面に、粉末状の磁性材からなる粉体コア（１１１）を有することを特徴とする非接触給電装置。 A power transmission side pad (11) having a laminated core (110) constituted by laminating plate-like magnetic materials (110a) in the thickness direction and windings (112, 113) arranged along the laminated core. ), And a power receiving side pad (12), and a magnetic flux flows into and out of the laminated end surface of the laminated core formed by laminating the end faces of the magnetic material. In the non-contact power feeding device that transmits power to the pad in a contactless manner,
A non-contact power feeding apparatus comprising a powder core (111) made of a powdered magnetic material on the laminated end face of the laminated core of the power transmission side pad and the power receiving side pad. 前記粉体コア（２１１）は、前記送電側パッドと前記受電側パッドの前記積層コア（２１０）の互いに対向する前記積層端面に形成されていることを特徴とする請求項１に記載の非接触給電装置。   The non-contact according to claim 1, wherein the powder core (211) is formed on the laminated end faces of the laminated core (210) of the power transmitting side pad and the power receiving side pad facing each other. Power supply device. 前記粉体コア（３１１）は、前記巻線（３１２、３１３）が配置される前記積層端面以外の前記積層端面に形成されていることを特徴とする請求項２に記載の非接触給電装置。   The non-contact power feeding apparatus according to claim 2, wherein the powder core (311) is formed on the laminated end face other than the laminated end face on which the windings (312 and 313) are arranged. 前記粉体コア（４１１）は、対向する方向から見たときに、前記積層端面よりも広い領域を占めるように形成されていることを特徴とする請求項３に記載の非接触給電装置。   The non-contact power feeding device according to claim 3, wherein the powder core (411) is formed so as to occupy a region wider than the end face of the stacked layer when viewed from a facing direction. 前記粉体コア（５１１）は、間隔をあけて分散して形成されていることを特徴とする請求項１〜４のいずれか１項に記載の非接触給電装置。   The non-contact power feeding device according to any one of claims 1 to 4, wherein the powder core (511) is formed to be dispersed at intervals. 前記粉体コア（５１１）の間隔は、前記粉体コア（５１１）の厚さの２倍以下であることを特徴とする請求項５に記載の非接触給電装置。   6. The non-contact power feeding device according to claim 5, wherein an interval between the powder cores (511) is not more than twice a thickness of the powder core (511). 前記粉体コア（６１１）と前記積層端面の間に、粉末状の磁性材を混合した、前記積層コア及び前記粉体コアより柔らかい部材（６１１ａ）を有することを特徴とする請求項１〜６のいずれか１項に記載の非接触給電装置。   The said powder core (611) and the said lamination | stacking end surface have a member (611a) softer than the said lamination | stacking core and the said powder core which mixed the powdery magnetic material. The contactless power supply device according to any one of the above. 前記送電側パッド（１１）は、車両の外部に設置され、
前記受電側パッド（１２）は、前記車両に搭載され、
前記車両の外部から前記車両に非接触で送電することを特徴とする請求項１〜７のいずれか１項に記載の非接触給電装置。 The power transmission side pad (11) is installed outside the vehicle,
The power receiving side pad (12) is mounted on the vehicle,
The contactless power feeding device according to any one of claims 1 to 7, wherein power is transmitted from the outside of the vehicle to the vehicle in a contactless manner.
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