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WO2013145647A1 - Dispositif de charge sans fil - Google Patents

Dispositif de charge sans fil Download PDF

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Publication number
WO2013145647A1
WO2013145647A1 PCT/JP2013/001892 JP2013001892W WO2013145647A1 WO 2013145647 A1 WO2013145647 A1 WO 2013145647A1 JP 2013001892 W JP2013001892 W JP 2013001892W WO 2013145647 A1 WO2013145647 A1 WO 2013145647A1
Authority
WO
WIPO (PCT)
Prior art keywords
side pad
laminated
power
core
power transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/001892
Other languages
English (en)
Japanese (ja)
Inventor
英介 高橋
耕司 間崎
大林　和良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of WO2013145647A1 publication Critical patent/WO2013145647A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present disclosure 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.
  • Patent Document 1 Conventionally, as a non-contact power supply device, for example, there is a non-contact power supply system disclosed in Patent Document 1.
  • 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.
  • the power receiving coil When the magnetic flux generated by the feeder line is linked via the E-type core, the power receiving coil generates an induced electromotive force. 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.
  • 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.
  • 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.
  • 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.
  • an object of the present disclosure is to provide 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 original flow in and out direction.
  • the non-contact power feeding device includes a power transmission side pad and a power reception side pad.
  • Each of the power transmission side pad and the power reception side pad has a laminated core and a winding disposed along the laminated core.
  • the laminated core includes a plurality of magnetic plate-like portions.
  • the plate-like portions are laminated in the plate thickness direction to constitute a laminated core.
  • the magnetic flux flows in and out of the laminated end surface of the laminated core configured with the end faces of the plate-like portions being laminated, so that power is transmitted in a non-contact manner from the power transmitting side pad to the power receiving side pad.
  • a powder core made of a powdered magnetic material is provided on the laminated end face of the laminated core of the power transmitting side pad and the power receiving side pad.
  • the magnetic flux spreads in the lateral direction in the gap with respect to the direction in which it originally flows. 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.
  • 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.
  • 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.
  • the powder core formed by molding the powdered magnetic material is formed on the laminated end surface of the laminated core of the power transmission side pad and the power reception side pad. Therefore, eddy current loss can be suppressed even when the magnetic flux flows in and out obliquely with respect to the original flow direction.
  • FIG. 3 is a cross-sectional view taken along line III-III in FIG.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. It is sectional drawing in the state in which the power transmission side pad and the receiving side pad opposed. It is sectional drawing seen from the other direction in the state which the power transmission side pad and the receiving side pad opposed.
  • FIG. 18 is a cross-sectional view taken along line XIX-XIX in FIG. It is a top view of the power transmission side pad in the modification of 5th Embodiment.
  • FIG. 21 is a cross-sectional view taken along line XXI-XXI in FIG. 20.
  • FIG. 21 is a cross-sectional view taken along line XXII-XXII in FIG. It is sectional drawing of the power transmission side pad in 6th Embodiment. It is sectional drawing of the power transmission side pad in 7th Embodiment. It is sectional drawing of the power transmission side pad in the modification of 7th Embodiment. It is a top view of the power transmission side pad in an 8th embodiment.
  • FIG. 27 is a cross-sectional view taken along line XXVII-XXVII in FIG. 26.
  • FIG. 27 is a sectional view taken along line XXVIII-XXVIII in FIG. 26. It is a top view of the power transmission side pad in the modification of 8th Embodiment.
  • FIG. 27 is a cross-sectional view taken along line XXVII-XXVII in FIG. 26.
  • FIG. 27 is a sectional view taken along line XXVIII-XXVIII in FIG. 26. It is a top view
  • FIG. 30 is a cross-sectional view taken along line XXX-XXX in FIG. 29.
  • FIG. 30 is a cross-sectional view taken along line XXXI-XXXI in FIG. 29. It is a top view of the power transmission side pad in 9th Embodiment. It is a left view of the power transmission side pad in 9th Embodiment. It is a lower surface of the power transmission side pad in 9th Embodiment.
  • FIG. 33 is a cross-sectional view taken along line XXXV-XXXV in FIG. 32.
  • the present disclosure will be described in more detail with reference to embodiments.
  • an example in which the non-contact power feeding device according to the present disclosure 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 will be described.
  • FIG. 5 is a cross-sectional view corresponding to a cross section taken along line III-III in FIG. 6 is a cross-sectional view corresponding to a cross section taken along line IV-IV in FIG.
  • 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 a DC / DC converter circuit
  • 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 driving the vehicle.
  • it is a device that operates as a generator by rotating with an external driving force and generates a three-phase AC voltage.
  • the main battery B1 is a chargeable / dischargeable power source that outputs a DC high voltage.
  • 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.
  • 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.
  • the auxiliary battery B2 is a chargeable / dischargeable power source that outputs a DC low voltage.
  • 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 it to the auxiliary battery B2 and the auxiliary machine S.
  • 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.
  • the non-contact power supply device 1 is a device that transmits power from an external power source PS installed outside the vehicle to the 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.
  • 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.
  • 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.
  • the laminated core 110 is a member constituting a magnetic path.
  • the laminated core 110 is composed of a plurality of plate-like magnetic materials 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.
  • 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.
  • the windings 112 and 113 are members that generate magnetic flux when current flows.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the power transmission side pad 11 and the power reception side pad 13 face each other with a predetermined interval in the vertical direction.
  • 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.
  • 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.
  • the power transmission circuit 10 shown in FIG. 1 converts the voltage output from the external power source PS into a high-frequency AC voltage based on the received information, and applies it to the power transmission side pad 11.
  • 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.
  • 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
  • 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
  • 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.
  • FIG. 7 and FIG. 7 and 8 are cross-sectional views corresponding to a cross section taken along line IV-IV in FIG.
  • the power transmission side pad 11 is installed on the ground surface in the parking space.
  • the power receiving side pad 12 is installed at the bottom of the vehicle.
  • 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.
  • the powder core formed by molding the powdered magnetic material is formed on the laminated end surface of the laminated core of the power transmitting side pad and the 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 reception side pad mounted on the vehicle and transmits power from the outside of the vehicle to the vehicle in a contactless manner, Even if it flows in and out with respect to the direction, eddy current can be reduced and eddy current loss can be suppressed.
  • 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.
  • FIG. 9 is a cross-sectional view corresponding to a cross section taken along line III-III in FIG.
  • the power transmission side pad 21 includes a laminated core 210, a powder core 211, and windings 212 and 213.
  • 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.
  • 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.
  • the windings 212 and 213 have the same configuration as the windings 112 and 113 of the first 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.
  • 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.
  • FIG. 10 is a cross-sectional view corresponding to a cross section taken along line III-III in FIG.
  • the power transmission side pad 31 includes a laminated core 310, a powder core 311, and windings 312 and 313.
  • 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 associated with the change in the location where the powder core 311 is formed.
  • 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.
  • the windings 312 and 313 have the same configuration as the windings 212 and 213 of the second embodiment.
  • the powder core is formed in lamination
  • 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.
  • 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. .
  • the powder core 311 is formed in a thin plate shape on the upper surfaces of the protrusions 310b and 310c.
  • 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.
  • 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 according to the third embodiment.
  • FIG. 11 is a cross-sectional view corresponding to a cross section taken along line III-III in FIG. 12 is a cross-sectional view corresponding to a cross section taken along line IV-IV in FIG.
  • the power transmission side pad 41 includes a laminated core 410, a powder core 411, and windings 412, 413.
  • the laminated core 410 has the same configuration as the laminated core 310 of the third embodiment.
  • the laminated core 410 is configured by laminating plate-like magnetic materials 410a cut into a concave shape.
  • 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.
  • 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.
  • 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.
  • 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.
  • the second winding portion 412b. 413b is disposed along the front and rear surfaces and the left and right side surfaces of the powder core 411, and the upper surfaces of the windings 412 and 413 are set to coincide with the upper surface of the powder core 411.
  • 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
  • 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.
  • 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.
  • 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.
  • the configuration of the power transmission side pad will be described with reference to FIGS.
  • the front-back direction, the left-right direction, and the up-down direction in a figure show the direction in a vehicle.
  • the power transmission side pad 51 includes a laminated core 510, a powder core 511, and windings 512 and 513.
  • the laminated core 510 has the same configuration as the laminated core 310 of the third embodiment.
  • the laminated core 510 is configured by laminating plate-like magnetic materials 510a cut into concave shapes.
  • 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.
  • the powder cores are formed in a dispersed manner at intervals. Therefore, the formation location of a powder core can be reduced.
  • the interval between the powder cores is set to be not more than twice 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.
  • the powder cores 511 are dispersed and arranged at predetermined intervals in the front-rear direction and the left-right direction.
  • the present invention is not limited to this.
  • the powder cores 511 may be arranged in a dispersed manner with a predetermined interval only in the front-rear direction.
  • 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.
  • 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.
  • FIG. 23 is a cross-sectional view corresponding to a cross section taken along line III-III in FIG.
  • the power transmission side pad 61 includes a laminated core 610, a powder core 611, and windings 612 and 613.
  • the laminated core 610 has the same configuration as the laminated core 310 of the third embodiment.
  • the laminated core 610 is configured by laminating a plate-like magnetic material 610a cut into a concave shape.
  • 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.
  • the windings 612 and 613 have the same configuration as the windings 312 and 313 of the third embodiment.
  • 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.
  • a gap is generated and the magnetic resistance is increased.
  • the powder core is fixed by an adhesive.
  • the powder core is fixed by the adhesive mixed with the powdery magnetic material. Therefore, an increase in magnetic resistance can be suppressed.
  • stacking end surface is given.
  • 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.
  • FIG. 24 is a cross-sectional view corresponding to a cross section taken along line III-III in FIG.
  • the power transmission side pad 71 includes a laminated core 710, a powder core 711, and windings 712 and 713.
  • the laminated core 710 is configured by laminating a plate-like magnetic material 710a cut into a rectangular shape in the vertical direction, which is the thickness direction.
  • 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.
  • 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.
  • the first winding portion 712a 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.
  • 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, as compared with the case of laminating magnetic materials in the horizontal direction as in the first to fifth embodiments, the laminated core The number of magnetic materials 710a constituting 701 can be suppressed. Therefore, the productivity of the laminated core 710 can be improved.
  • the front and rear surfaces of the laminated core 710 are formed perpendicular to the vertical direction, but the present invention is not limited to this.
  • 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.
  • the configuration of the power transmission side pad will be described with reference to FIGS.
  • the front-back direction, the left-right direction, and the up-down direction in a figure show the direction in a vehicle.
  • the power transmission side pad 81 includes a laminated core 810, a powder core 811 and a winding 812.
  • the laminated core 810 is configured by laminating a plate-shaped magnetic material 810a cut into a rectangular shape in the left-right direction, which is the plate thickness direction.
  • the powder core 811 is formed in a plate shape on the laminated end surface of the laminated core 810.
  • the laminated core 810 is formed in a plate shape on each of the front and rear surfaces and the upper and lower surfaces.
  • 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.
  • 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 810a cut into a strip shape so as to be laminated in the plate thickness direction.
  • the configuration of the power transmission side pad will be described with reference to FIGS.
  • the front-back direction and the up-down direction in a figure show the direction in a vehicle.
  • the power transmission side pad 91 includes a plurality of laminated cores 910, a powder core 911, and a winding 912.
  • the laminated core 910 is configured by laminating a plate-shaped magnetic material 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.
  • the powder core 911 is a laminated end face of the laminated end face of the laminated core 910 that is opposed to the laminated end face of the laminated core of the power receiving side pad, and has a plate shape on the laminated end face other than the laminated end face 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.
  • the windings 912 are arranged in a circular shape along the upper surface of the laminated cores 910 arranged in a radial pattern in which the powder cores 911 are not formed.
  • the receiving side pad has the same configuration as the transmitting side pad.
  • the receiving side pad may not have the same configuration as the transmitting side pad.
  • a power receiving side pad having the same configuration as the power transmitting side pads of the second to ninth embodiments may be used for the transmitting side pads of the first embodiment.
  • the reception side pads having the same configuration as the power transmission side pads of the first to ninth embodiments can be used in combination with the transmission side pads of 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, but this is not restrictive.
  • 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.

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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)
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WO2015094964A1 (fr) * 2013-12-17 2015-06-25 Qualcomm Incorporated Topologies de bobine pour transfert d'énergie inductif
WO2015178206A1 (fr) * 2014-05-22 2015-11-26 株式会社デンソー Pastille de transmission d'énergie et système de transmission d'énergie sans contact
CN106230084A (zh) * 2016-09-13 2016-12-14 成都创慧科达科技有限公司 一种便携发电电源

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JP2015162948A (ja) * 2014-02-27 2015-09-07 Ｉｈｉ運搬機械株式会社 非接触給電システムと車両給電装置
KR102688432B1 (ko) * 2022-06-08 2024-07-26 대진대학교 산학협력단 요잉 구동부에 적용 가능한 3상 전원의 무선전력전송 장치 및 이를 이용한 3상 풍력발전 시스템

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JP2010022183A (ja) * 2008-02-08 2010-01-28 Suri-Ai:Kk 電気自動車及びそれに好適な車両用誘導送電装置

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JP5836598B2 (ja) * 2011-01-19 2015-12-24 株式会社テクノバ 非接触給電用コア

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JP2008041876A (ja) * 2006-08-04 2008-02-21 Sumitomo Electric Ind Ltd リアクトル
JP2010022183A (ja) * 2008-02-08 2010-01-28 Suri-Ai:Kk 電気自動車及びそれに好適な車両用誘導送電装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015094964A1 (fr) * 2013-12-17 2015-06-25 Qualcomm Incorporated Topologies de bobine pour transfert d'énergie inductif
US9837204B2 (en) 2013-12-17 2017-12-05 Qualcomm Incorporated Coil topologies for inductive power transfer
EP3402030A1 (fr) * 2013-12-17 2018-11-14 Qualcomm Incorporated Topologies de bobine pour transfert de puissance inductive
US10340078B2 (en) 2013-12-17 2019-07-02 Witricity Corporation Coil topologies for inductive power transfer
WO2015178206A1 (fr) * 2014-05-22 2015-11-26 株式会社デンソー Pastille de transmission d'énergie et système de transmission d'énergie sans contact
JP2016001983A (ja) * 2014-05-22 2016-01-07 株式会社デンソー 電力伝送用パッドおよび非接触電力伝送システム
CN106230084A (zh) * 2016-09-13 2016-12-14 成都创慧科达科技有限公司 一种便携发电电源

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