WO2017149599A1 - Resonance-type wireless power transmission device - Google Patents

Resonance-type wireless power transmission device Download PDF

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Publication number
WO2017149599A1
WO2017149599A1 PCT/JP2016/056051 JP2016056051W WO2017149599A1 WO 2017149599 A1 WO2017149599 A1 WO 2017149599A1 JP 2016056051 W JP2016056051 W JP 2016056051W WO 2017149599 A1 WO2017149599 A1 WO 2017149599A1
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WO
WIPO (PCT)
Prior art keywords
antenna
wireless power
power transmission
transmission
type wireless
Prior art date
Application number
PCT/JP2016/056051
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French (fr)
Japanese (ja)
Inventor
阿久澤　好幸
有基 伊藤
Original Assignee
三菱電機エンジニアリング株式会社
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
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Application filed by 三菱電機エンジニアリング株式会社 filed Critical 三菱電機エンジニアリング株式会社
Priority to JP2017516980A priority Critical patent/JP6479174B2/en
Priority to PCT/JP2016/056051 priority patent/WO2017149599A1/en
Priority to TW105125138A priority patent/TW201733248A/en
Publication of WO2017149599A1 publication Critical patent/WO2017149599A1/en

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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
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • 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
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • 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
    • 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 invention relates to a resonance type wireless power transmission apparatus that wirelessly transmits power between a transmission antenna and a reception antenna.
  • Patent Document 1 In the coil unit disclosed in Patent Document 1, a magnetic body is disposed outside a coil that performs power transmission. Thereby, the leakage magnetic field radiated to the space passes through the magnetic body and returns to the coil, and unnecessary radiation to the space is reduced. In this coil unit, a conductor plate is disposed between the coil and the magnetic body. Thereby, it can adjust so that the coupling
  • the conventional technology includes a magnetic body and a conductor plate, there is a problem that the entire apparatus is increased in size and weight.
  • the entire coil when the entire coil is not surrounded by a magnetic material, there is a problem in that a magnetic field is radiated to a space from a location where the magnetic material is not disposed and a leakage magnetic field is generated.
  • a magnetic material since a magnetic material is used in the prior art, there is a problem that heat is generated due to iron loss and power transmission efficiency is reduced.
  • the conductor plate since the conductor plate is used in the prior art, there is a problem that heat is generated due to eddy current loss and power transmission efficiency is reduced. Further, since the end face of the coil is open, there is a problem that the leakage magnetic field is structurally large.
  • the present invention has been made to solve the above-described problems, and provides a resonant wireless power transmission device that can suppress the generation of a leakage magnetic field without using a magnetic body and a conductor plate. It is aimed.
  • a resonant wireless power transmission device includes a transmission antenna wound in a spiral shape and a reception antenna wound in a spiral shape, and one end face of the transmission antenna and one end face of the reception antenna face each other.
  • the other end face of the transmitting antenna and the other end face of the receiving antenna are opposed to each other.
  • the leakage magnetic field generated from the resonance type wireless power transmission device can be suppressed without using a magnetic body and a conductor plate.
  • FIG. 1A is a schematic diagram illustrating a configuration example of a resonant wireless power transmission device according to Embodiment 1 of the present invention
  • FIG. 1B is a schematic diagram of a transmission antenna as viewed from an end surface side.
  • 1 is an equivalent circuit diagram of a resonance type wireless power transmission apparatus according to Embodiment 1 of the present invention.
  • FIG. FIG. 3A is a schematic diagram illustrating another configuration example of the resonant wireless power transmission device according to the first embodiment of the present invention
  • FIG. 3B is a schematic diagram of the transmission antenna as viewed from the end surface side. It is a schematic diagram which shows another structural example of the resonance type radio
  • FIG. 11A and FIG. 11B are diagrams showing a hardware configuration example of the control unit of the transmission power supply in the fifth and sixth embodiments of the present invention.
  • FIG. 1 is a schematic diagram showing a configuration example of a resonant wireless power transmission apparatus according to Embodiment 1 of the present invention
  • FIG. 2 is an equivalent circuit diagram of the resonant wireless power transmission apparatus.
  • the resonant wireless power transmission apparatus includes a transmission power source 1, a transmitter 2, a receiver 3, and a reception circuit 4.
  • the transmission power source 1 and the transmitter 2 constitute a transmission device 5, and the receiver 3 and the reception circuit 4 constitute a reception device 6.
  • the transmission power source 1 supplies single frequency AC power.
  • the transmitter 2 wirelessly transmits the power supplied from the transmission power source 1 to the receiver 3.
  • the transmitter 2 shown in FIGS. 1 and 2 has resonance capacitors C ⁇ b> 11 and C ⁇ b> 12 and a transmission antenna (transmission coil) 21.
  • the resonance capacitors C11 and C12 adjust the resonance condition of the transmission antenna 21.
  • one end of the resonance capacitor C ⁇ b> 11 is connected to one of the pair of output terminals of the transmission power source 1.
  • one end of the resonance capacitor C12 is connected to the other terminal of the pair of output terminals of the transmission power source 1.
  • the transmitting antenna 21 has one end connected to the other end of the resonance capacitor C11 and the other end connected to the other end of the resonance capacitor C12. Details of the transmission antenna 21 will be described later.
  • the receiver 3 receives power from the transmitter 2.
  • the receiver 3 shown in FIGS. 1 and 2 has a receiving antenna (receiving coil) 31 and resonance capacitors C21 and C22.
  • the resonance capacitors C21 and C22 adjust the resonance conditions of the reception antenna 31.
  • one end of the receiving antenna 31 is connected to one end of the resonance capacitor C21, and the other end is connected to one end of the resonance capacitor C22. Details of the receiving antenna 31 will be described later.
  • the power transmission method between the transmitting antenna 21 and the receiving antenna 31 is not particularly limited, and any of a magnetic field resonance method, an electric field resonance method, and an electromagnetic induction method may be used.
  • the receiving circuit 4 is connected to the receiver 3.
  • one terminal of the pair of input terminals is connected to the other end of the resonance capacitor C21, and the other terminal is connected to the other end of the resonance capacitor C22.
  • Examples of the receiving circuit 4 include a configuration including a rectifier circuit and a load, a configuration including a rectifier circuit, a reception power source (DC / DC converter) and a load, and a configuration including only a load.
  • the transmission antenna 21 has a helical (helical) coil shape, and both end faces 21a and 21b receive signals.
  • the axial center shape is formed in an arc shape so as to face the antenna 31 side.
  • the receiving antenna 31 has a helical (helical) coil shape, and the axial center is formed in an arc shape so that both end faces 31a and 31b face the transmitting antenna 21 side.
  • FIG. 1B only the transmission antenna 21 is shown, but the same applies to the reception antenna 31.
  • the transmission antenna 21 and the reception antenna 31 are configured such that one end surface 21a of the transmission antenna 21 and one end surface 31a of the reception antenna 31 are opposed to each other, the other end surface 21b of the transmission antenna 21 and the other end surface 31b of the reception antenna 31 are opposed. Are arranged so as to face each other. Note that the end surfaces 21a and 21b of the transmission antenna 21 and the end surfaces 31a and 31b of the reception antenna 31 do not have to be strictly opposed to each other, for example, an area of 75% or more of the end surface. Should just face each other.
  • the end surfaces 21a and 21b of the transmitting antenna 21 and the end surfaces 31a and 31b of the receiving antenna 31 are arranged to face each other, thereby reducing the number of magnetic field leaks and suppressing the generation of a leakage magnetic field into the space. Can do.
  • a one-dot chain line indicates a path of interlinkage magnetic flux (main magnetic flux), and a broken line indicates leakage magnetic flux.
  • the shapes of the transmission antenna 21 and the reception antenna 31 are not limited to the shapes shown in FIG. 1, and may be, for example, the shapes shown in FIG. In FIG. 1, the winding start position and the winding end position of the transmission antenna 21 are opposite to each other, but in FIG. 3, the coil winding start position and the winding end position of the transmission antenna 21 are On the same side.
  • the coil is wound spirally from the winding start position toward the tip, and is wound back to the winding start position with the same winding direction. Thereby, the direction of the electric current which flows into the transmission antenna 21 can be made into the same direction by the going of a coil and a return.
  • the receiving antenna 31 is configured in the same manner as the transmitting antenna 21. Moreover, even if it is the shape shown in FIG. 3, an equivalent circuit is the same as FIG.
  • the shapes of the transmitting antenna 21 and the receiving antenna 31 may be different as shown in FIG. FIG. 4 shows a case where the number of turns between the transmitting antenna 21 and the receiving antenna 31 is changed.
  • the axial center shape of the transmitting antenna 21 and the receiving antenna 31 is an arc shape
  • the present invention is not limited to this, and may be a square shape, for example.
  • the transmission antenna 21 wound spirally and the reception antenna 31 wound spirally are provided, and one end face 21a of the transmission antenna 21 and the reception antenna 31 are provided. Since the other end surface 21b of the transmitting antenna 21 and the other end surface 31b of the receiving antenna 31 are opposed to each other, the resonance type wireless power can be used without using a magnetic material and a conductor plate. The leakage magnetic field generated from the transmission device can be suppressed.
  • the entire apparatus can be reduced in size and weight compared to the conventional configuration. Further, since iron loss due to the magnetic material does not occur, the loss and heat generation of the entire apparatus are less than in the conventional configuration, and the power transmission efficiency can be increased. Moreover, since eddy current loss due to the conductor plate does not occur, the loss and heat generation of the entire apparatus are less than in the conventional configuration, and the power transmission efficiency can be increased.
  • the resonance type wireless power transmission apparatus according to Embodiment 1 has a large effect of reducing the leakage magnetic field, particularly for high power wireless power transmission.
  • FIG. FIG. 5 is a schematic diagram showing a configuration example of a resonance type wireless power transmission apparatus according to Embodiment 2 of the present invention.
  • the resonance type wireless power transmission device according to the second embodiment shown in FIG. 5 includes resonance capacitors C11 and C12 and resonance capacitors C21 and C22 from the resonance type wireless power transmission device according to the first embodiment shown in FIG.
  • the transmission antenna 21 and the reception antenna 31 are open type. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
  • the transmission antenna 21 is divided into first and second transmission antennas 211 and 212 as shown in FIG.
  • the first transmission antenna 211 has one end connected to one of the pair of output terminals of the transmission power supply 1 and the other end open.
  • the second transmission antenna 212 has one end connected to the other terminal of the pair of output terminals of the transmission power source 1 and the other end opened.
  • the receiving antenna 31 is divided into first and second receiving antennas 311 and 312 as shown in FIG.
  • the first receiving antenna 311 has one end opened and the other end connected to one terminal of the pair of input terminals of the receiving circuit 4.
  • the second receiving antenna 312 has one end opened and the other end connected to the other terminal of the pair of input terminals of the receiving circuit 4.
  • the end surface 21a of the first transmission antenna 211 and the end surface 31a of the first reception antenna 311 are opposed to each other, and the end surface 21b of the second transmission antenna 212 and the end surface 31b of the second reception antenna 312 are opposed to each other.
  • the end surfaces 21a and 21b of the transmission antenna 21 and the end surfaces 31a and 31b of the reception antenna 31 do not have to be strictly opposed to each other, for example, an area of 75% or more of the end surface. Should just face each other.
  • the transmitting antenna 21 and the receiving antenna 31 are each of the parasitic capacitance of the coil.
  • the self-resonance can be performed by using and the own resonance condition can be adjusted.
  • the end surfaces 21a and 21b of the transmitting antenna 21 and the end surfaces 31a and 31b of the receiving antenna 31 are arranged to face each other, thereby reducing the number of magnetic field leak points, Generation of a leakage magnetic field into the space can be suppressed without using a conductor plate.
  • the resonance type wireless power transmission apparatus according to Embodiment 2 has a large effect of reducing the leakage magnetic field, particularly for high power wireless power transmission.
  • FIG. FIG. 6 is a schematic diagram showing a configuration example of a resonance type wireless power transmission apparatus according to Embodiment 3 of the present invention.
  • the transmitting antenna 21 and the receiving antenna 31 of the resonant wireless power transmission apparatus according to the first embodiment shown in FIG. 1 are changed to a conical shape. Is.
  • Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
  • the diameters of the end faces 21a and 21b are configured to be larger than the diameters of the portions other than the end faces 21a and 21b.
  • the end surfaces 21a and 21b have a conical shape in which the diameter on the side of the end surfaces 21a and 21b is gradually increased toward the end surfaces 21a and 21b with respect to the diameter of the portion other than the end surfaces 21a and 21b.
  • the receiving antenna 31 is configured in the same manner as the transmitting antenna 21.
  • the diameters of the end surfaces 21a, 21b, 31a, and 31b of the transmitting antenna 21 and the receiving antenna 31 are made larger than the diameters of the portions other than the end surfaces 21a, 21b, 31a, and 31b.
  • the end faces 21a, 21b, 31a, 31b can be easily made to face each other.
  • the enlargement of only the one part diameter can avoid the enlargement of the whole antenna.
  • FIG. 6 shows the case where the end faces 21a, 21b, 31a, 31b of both the transmitting antenna 21 and the receiving antenna 31 are configured to be large, the end face of only one antenna may be configured to be large.
  • 6 shows the case where the transmitting antenna 21 and the receiving antenna 31 have a conical shape.
  • the present invention is not limited to this, and the diameters of the end faces 21a, 21b, 31a, 31b are the end faces 21a, 21b, 31a,
  • the shape may be any shape as long as it is larger than the diameter of the portion other than 31b.
  • FIG. 7 is a schematic diagram showing a configuration example of a resonance type wireless power transmission apparatus according to Embodiment 4 of the present invention.
  • the resonance type wireless power transmission apparatus according to the fourth embodiment shown in FIG. 7 is obtained by adding a repeater 7 to the resonance type wireless power transmission apparatus according to the first embodiment shown in FIG.
  • Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
  • the repeater 7 shown in FIG. 7 includes a resonance capacitor C31 and a relay antenna (relay coil) 71.
  • the resonance capacitor C31 adjusts the resonance condition of the relay antenna 71.
  • the resonance capacitor C31 has one end connected to one end of the relay antenna 71 and the other end connected to the other end of the relay antenna 71.
  • the relay antenna 71 has a coil shape wound in a helical shape (spiral shape), and both end surfaces 71a and 71b are adjacent antennas (the transmitting antenna 21, the receiving antenna 31 or the antenna).
  • the axial center shape is formed in an arc shape so as to face the other relay antenna 71) side.
  • the end surfaces 71a and 71b of the relay antenna 71 are arranged to face the end surfaces of the adjacent antennas.
  • the end faces 71a and 71b of the relay antenna 71 and the end faces of the adjacent antennas may not face all of the end faces, for example, an area of 75% or more of the end faces. Should just face each other.
  • the transmission distance can be extended.
  • the present invention is not limited to this, and may be a square shape, for example.
  • the diameters of the end faces 71a and 71b of the relay antenna 71 may be larger than the diameters of the portions other than the end faces 71a and 71b.
  • the repeater 7 includes the resonance capacitor C31 and the relay antenna 71.
  • the present invention is not limited to this, and similarly to FIG. 5, the resonance capacitor C31 may be removed, and the relay antenna 71 may be an open type and self-resonate.
  • the repeater 7 is added to the resonant wireless power transmission apparatus shown in FIG.
  • the present invention is not limited to this, and the repeater 7 may be added to other resonance type wireless power transmission apparatuses as shown in FIGS.
  • the loop shape including the transmission antenna 21, the reception antenna 31, and the relay antenna 71 is not limited to the shape shown in FIG. 7, and may be a shape as shown in FIG. 8, for example.
  • the relay antenna 71 is disposed only between one end (right end) of the transmission antenna 21 and one end (left end) of the reception antenna 31 for easy understanding of the drawing.
  • the relay antenna 71 is also arranged between the other end (left end) of the antenna and the receiving antenna 31 (right end) (dotted line portion shown in FIG. 8), and a loop is formed.
  • FIG. 9 is a schematic diagram showing an application example of a resonance type wireless power transmission apparatus according to Embodiment 5 of the present invention.
  • FIG. 9 shows a case where the transmission device 5 is provided in the parking lot (fixed portion) 101a and the reception device 6 is provided in the electric vehicle (moving body) 102a to supply power to the electric vehicle 102a.
  • the transmitting antenna 21 and the receiving antenna 31 of the resonance type wireless power transmission apparatus are illustrated.
  • the transmission power source 1 has a function (control unit) for switching on / off of power supply to the transmission antenna 21. At this time, the transmission power source 1 determines that the transmission vehicle antenna 102a stops at the parking lot 101a, and determines that the end surfaces 21a and 21b of the transmission antenna 21 and the end surfaces 31a and 31b of the reception antenna 31 face each other. Power is supplied to 21.
  • the power supply ON / OFF determination in the transmission power source 1 may be determined by, for example, detecting the electric vehicle 102a using an object detection sensor, or communication between the transmission device 5 and the reception device 6 may be performed. You may determine by doing.
  • FIG. 10 is a schematic diagram showing an application example of a resonance type wireless power transmission apparatus according to Embodiment 6 of the present invention.
  • FIG. 10 shows a case where a plurality of transmission devices 5 are provided in a production line (fixed part) 101b of a factory, and one or more reception devices 6 are provided in a pallet (moving body) 102b to supply power to the pallet 102b. ing. In FIG. 10, only the transmitting antenna 21 and the receiving antenna 31 of the resonance type wireless power transmission apparatus are illustrated.
  • the transmitting antennas 21 are arranged at regular intervals along the production line 101b.
  • Two receiving antennas 31 are provided for one pallet 102b.
  • suffixes (-1, -2, ...) are added to the codes of the respective systems.
  • the transmission power source 1 has a function (control unit) for switching on / off of power supply to the transmission antenna 21. At this time, the transmission power source 1 supplies power to the transmission antenna 21 when it is determined that the end surfaces 21a and 21b of any one of the transmission antennas 21 and the end surfaces 31a and 31b of any one of the reception antennas 31 face each other. Do.
  • the power supply ON / OFF determination in the transmission power source 1 may be determined by, for example, detecting the pallet 102b using an object detection sensor, or performing communication between the transmission device 5 and the reception device 6. The timing of power supply may be preset if the operation of the pallet 102b is known.
  • the transmission power source 1-1 (not shown) turns on the transmission antenna 21-1 and connects to one reception antenna (for example, the reception antenna 31-1). Conduct power transmission.
  • the transmission power supply 1-2 (not shown) turns off the transmission antenna 21-2, and the transmission antenna 21-2 and the other reception antenna (for example, the reception antenna 31-2) operate as a relay antenna.
  • a transmission power supply 1-4 (not shown) turns on the transmission antenna 21-4 and transmits power to the reception antenna 31-4.
  • transmission power supplies 1-3 and 1-5 (not shown) turn off the transmission antennas 21-3 and 21-5 whose end faces are not opposed to each other, and transmit the transmission antennas 21-3 and 21-5 and the reception antenna 31. -3 does not operate as a relay antenna.
  • a plurality of transmission devices 5 are provided in the production line 101b of the factory, one or more reception devices 6 are provided in the pallet 102b, and power is supplied to the pallet 102b is shown.
  • the present invention is not limited to this.
  • an electric vehicle that is moving by providing a plurality of transmitting devices 5 on a road surface (fixed portion) and providing one or more receiving devices 6 on an electric vehicle (moving body). You may comprise so that electric power feeding may be performed.
  • the transmission power source 1 is provided for each transmission antenna 21.
  • the present invention is not limited to this, and one transmission power source 1 may be provided for a plurality of transmission antennas 21.
  • the transmission power source 1 is configured to be able to individually switch the power supply to each transmission antenna 21 on and off.
  • FIG. 11 a hardware configuration example of the control unit of transmission power supply 1 in the fifth and sixth embodiments will be described.
  • the function in the control unit of the transmission power supply 1 is realized by the processing circuit 501.
  • a CPU Central Processing Unit, a central processing unit, a processing unit, an arithmetic unit, a microprocessor, which executes a program stored in the memory 503,
  • a microcomputer, a processor, and a DSP (Digital Signal Processor) 502 may also be used.
  • DSP Digital Signal Processor
  • the processing circuit 501 When the processing circuit 501 is dedicated hardware, the processing circuit 501 includes, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), and an FPGA (Field Programmable Gate). Array) or a combination thereof.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate
  • the processing circuit 501 When the processing circuit 501 is the CPU 502, the function of the control unit is realized by software, firmware, or a combination of software and firmware.
  • Software and firmware are described as programs and stored in the memory 503.
  • the processing circuit 501 realizes the function of the control unit by reading and executing the program stored in the memory 503. That is, the transmission power source includes a memory 503 for storing a program that, when executed by the processing circuit 501, results in the function of the control unit being executed as a result.
  • these programs are what makes a computer perform the procedure and method of a control part.
  • the memory 503 is a nonvolatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable ROM), an EEPROM (Electrically EPROM), or the like. And a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disc), and the like.
  • RAM Random Access Memory
  • ROM Read Only Memory
  • flash memory an EPROM (Erasable Programmable ROM), an EEPROM (Electrically EPROM), or the like.
  • a magnetic disk a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disc), and the like.
  • the processing circuit 501 can realize the above-described functions by hardware, software, firmware, or a combination thereof.
  • the resonance type wireless power transmission device can suppress the generation of a leakage magnetic field without using a magnetic body and a conductor plate, and can transmit power between a transmission antenna and a reception antenna wirelessly. Suitable for use in wireless power transmission devices and the like.
  • 1 transmission power source 2 transmitter, 3 receiver, 4 receiving circuit, 5 transmitting device, 6 receiving device, 7 repeater, 21 transmitting antenna, 21a, 21b end face, 31 receiving antenna, 31a, 31b end face, 71 relay antenna, 71a, 71b end face, 101a parking lot (fixed part), 101b production line (fixed part), 102a vehicle (moving body), 102b pallet (moving body), 211, 212, first and second transmitting antennas, 311, 312th 1, 2 receiving antennas, 501 processing circuit, 502 CPU, 503 memory.

Abstract

This resonance-type wireless power transmission device is provided with a transmission antenna (21) wound in a spiral shape and with a receiving antenna (31) wound in a spiral shape, wherein one end surface of the transmission antenna (21) and one end surface of the receiving antenna (31) are arranged oppositely of each other, and the other end surface of said transmission antenna (21) and the other end surface of said receiving antenna (31) are arranged oppositely of each other.

Description

共振型無線電力伝送装置Resonant type wireless power transmission device
　この発明は、送信アンテナと受信アンテナとの間を無線で電力を伝送する共振型無線電力伝送装置に関するものである。 The present invention relates to a resonance type wireless power transmission apparatus that wirelessly transmits power between a transmission antenna and a reception antenna.
　電気自動車等のパワーエレクトロニクス装置では、大電力の無線電力伝送が必要となり、漏洩磁界の強度も高くなるため、漏洩磁界を低減する対策が必要になる。そこで、従来から、電力伝送効率の低下を抑制しつつ、不要な漏洩磁界を低減する構成が知られている（例えば特許文献１参照）。この特許文献１に開示されたコイルユニットでは、電力伝送を行うコイルの外側に磁性体を配置している。これにより、空間へ放射された漏洩磁界が磁性体を通過してコイルへ戻り、空間への不要放射が低減される。また、このコイルユニットでは、コイルと磁性体との間に導体板を配置している。これにより、コイルと磁性体との結合度が顕著に高くならないように調整することができる。 In power electronics devices such as electric vehicles, high-power wireless power transmission is required, and the strength of the leakage magnetic field is increased. Therefore, measures to reduce the leakage magnetic field are required. Therefore, conventionally, a configuration is known in which an unnecessary leakage magnetic field is reduced while suppressing a decrease in power transmission efficiency (see, for example, Patent Document 1). In the coil unit disclosed in Patent Document 1, a magnetic body is disposed outside a coil that performs power transmission. Thereby, the leakage magnetic field radiated to the space passes through the magnetic body and returns to the coil, and unnecessary radiation to the space is reduced. In this coil unit, a conductor plate is disposed between the coil and the magnetic body. Thereby, it can adjust so that the coupling | bonding degree of a coil and a magnetic body may not become high remarkably.
特開２０１５－１８５７１９号公報JP-A-2015-185719
　しかしながら、従来技術では、磁性体及び導体板を備えているため、装置全体が大型化し重量化するという課題がある。また、従来技術において、コイル全体を磁性体で囲わない場合には、磁性体が配置されていない箇所から空間へ磁界が放射され、漏洩磁界が発生するという課題がある。また、従来技術では磁性体を使用しているため、鉄損による発熱が生じて電力伝送効率の低下が生じるという課題がある。また、従来技術では導体板を使用しているため、渦電流損による発熱が生じて電力伝送効率の低下が生じるという課題がある。また、コイルの端面が開放されているため、構造的に漏洩磁界が大きいという課題がある。 However, since the conventional technology includes a magnetic body and a conductor plate, there is a problem that the entire apparatus is increased in size and weight. Further, in the prior art, when the entire coil is not surrounded by a magnetic material, there is a problem in that a magnetic field is radiated to a space from a location where the magnetic material is not disposed and a leakage magnetic field is generated. In addition, since a magnetic material is used in the prior art, there is a problem that heat is generated due to iron loss and power transmission efficiency is reduced. Moreover, since the conductor plate is used in the prior art, there is a problem that heat is generated due to eddy current loss and power transmission efficiency is reduced. Further, since the end face of the coil is open, there is a problem that the leakage magnetic field is structurally large.
　この発明は、上記のような課題を解決するためになされたもので、磁性体及び導体板を用いることなく、漏洩磁界の発生を抑制することができる共振型無線電力伝送装置を提供することを目的としている。 The present invention has been made to solve the above-described problems, and provides a resonant wireless power transmission device that can suppress the generation of a leakage magnetic field without using a magnetic body and a conductor plate. It is aimed.
　この発明に係る共振型無線電力伝送装置は、らせん状に巻かれた送信アンテナと、らせん状に巻かれた受信アンテナとを備え、送信アンテナの一方の端面と受信アンテナの一方の端面とが対向され、当該送信アンテナの他方の端面と当該受信アンテナの他方の端面とが対向されたものである。 A resonant wireless power transmission device according to the present invention includes a transmission antenna wound in a spiral shape and a reception antenna wound in a spiral shape, and one end face of the transmission antenna and one end face of the reception antenna face each other. The other end face of the transmitting antenna and the other end face of the receiving antenna are opposed to each other.
　この発明によれば、上記のように構成したので、磁性体及び導体板を用いることなく、共振型無線電力伝送装置から発生する漏洩磁界を抑制することができる。 According to the present invention, since it is configured as described above, the leakage magnetic field generated from the resonance type wireless power transmission device can be suppressed without using a magnetic body and a conductor plate.
図１Ａは、この発明の実施の形態１に係る共振型無線電力伝送装置の構成例を示す模式図であり、図１Ｂは、送信アンテナを端面側から見た模式図である。1A is a schematic diagram illustrating a configuration example of a resonant wireless power transmission device according to Embodiment 1 of the present invention, and FIG. 1B is a schematic diagram of a transmission antenna as viewed from an end surface side. この発明の実施の形態１に係る共振型無線電力伝送装置の等価回路図である。1 is an equivalent circuit diagram of a resonance type wireless power transmission apparatus according to Embodiment 1 of the present invention. FIG. 図３Ａは、この発明の実施の形態１に係る共振型無線電力伝送装置の別の構成例を示す模式図であり、図３Ｂは、送信アンテナを端面側から見た模式図である。FIG. 3A is a schematic diagram illustrating another configuration example of the resonant wireless power transmission device according to the first embodiment of the present invention, and FIG. 3B is a schematic diagram of the transmission antenna as viewed from the end surface side. この発明の実施の形態１に係る共振型無線電力伝送装置の別の構成例を示す模式図である。It is a schematic diagram which shows another structural example of the resonance type radio | wireless power transmission apparatus which concerns on Embodiment 1 of this invention. この発明の実施の形態２に係る共振型無線電力伝送装置の構成例を示す模式図である。It is a schematic diagram which shows the structural example of the resonance type wireless power transmission apparatus which concerns on Embodiment 2 of this invention. この発明の実施の形態３に係る共振型無線電力伝送装置の構成例を示す模式図である。It is a schematic diagram which shows the structural example of the resonance type wireless power transmission apparatus which concerns on Embodiment 3 of this invention. この発明の実施の形態４に係る共振型無線電力伝送装置の構成例を示す模式図である。It is a schematic diagram which shows the structural example of the resonance type wireless power transmission apparatus which concerns on Embodiment 4 of this invention. この発明の実施の形態４に係る共振型無線電力伝送装置の別の構成例を示す模式図である。It is a schematic diagram which shows another structural example of the resonance type wireless power transmission apparatus which concerns on Embodiment 4 of this invention. この発明の実施の形態５に係る共振型無線電力伝送装置の適用例を示す模式図であり、電気自動車への給電を示す側面図である。It is a schematic diagram which shows the application example of the resonance type wireless power transmission apparatus which concerns on Embodiment 5 of this invention, and is a side view which shows the electric power feeding to an electric vehicle. この発明の実施の形態６に係る共振型無線電力伝送装置の適用例を示す模式図であり、パレットへの給電を示す上面図である。It is a schematic diagram which shows the application example of the resonance type wireless power transmission apparatus which concerns on Embodiment 6 of this invention, and is a top view which shows the electric power feeding to a pallet. 図１１Ａ、図１１Ｂは、この発明の実施の形態５，６における送信電源の制御部のハードウェア構成例を示す図である。FIG. 11A and FIG. 11B are diagrams showing a hardware configuration example of the control unit of the transmission power supply in the fifth and sixth embodiments of the present invention.
　以下、この発明の実施の形態について図面を参照しながら詳細に説明する。
実施の形態１．
　図１はこの発明の実施の形態１に係る共振型無線電力伝送装置の構成例を示す模式図であり、図２は当該共振型無線電力伝送装置の等価回路図である。
　共振型無線電力伝送装置は、図１，２に示すように、送信電源１、送信器２、受信器３及び受信回路４を備えている。なお、送信電源１及び送信器２は送信装置５を構成し、受信器３及び受信回路４は受信装置６を構成している。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing a configuration example of a resonant wireless power transmission apparatus according to Embodiment 1 of the present invention, and FIG. 2 is an equivalent circuit diagram of the resonant wireless power transmission apparatus.
As shown in FIGS. 1 and 2, the resonant wireless power transmission apparatus includes a transmission power source 1, a transmitter 2, a receiver 3, and a reception circuit 4. The transmission power source 1 and the transmitter 2 constitute a transmission device 5, and the receiver 3 and the reception circuit 4 constitute a reception device 6.
　送信電源１は、単一周波数の交流電力を供給するものである。
　送信器２は、送信電源１から供給された電力を、受信器３に無線で伝送するものである。図１，２に示す送信器２は、共振用コンデンサＣ１１，Ｃ１２及び送信アンテナ（送信コイル）２１を有している。共振用コンデンサＣ１１，Ｃ１２は、送信アンテナ２１の共振条件を調整するものである。ここで、共振用コンデンサＣ１１は、一端が送信電源１の一対の出力端子のうちの一方の端子に接続されている。また、共振用コンデンサＣ１２は、一端が送信電源１の一対の出力端子のうちの他方の端子に接続されている。また、送信アンテナ２１は、一端が共振用コンデンサＣ１１の他端に接続され、他端が共振用コンデンサＣ１２の他端に接続されている。この送信アンテナ２１の詳細については後述する。 The transmission power source 1 supplies single frequency AC power.
The transmitter 2 wirelessly transmits the power supplied from the transmission power source 1 to the receiver 3. The transmitter 2 shown in FIGS. 1 and 2 has resonance capacitors C <b> 11 and C <b> 12 and a transmission antenna (transmission coil) 21. The resonance capacitors C11 and C12 adjust the resonance condition of the transmission antenna 21. Here, one end of the resonance capacitor C <b> 11 is connected to one of the pair of output terminals of the transmission power source 1. In addition, one end of the resonance capacitor C12 is connected to the other terminal of the pair of output terminals of the transmission power source 1. The transmitting antenna 21 has one end connected to the other end of the resonance capacitor C11 and the other end connected to the other end of the resonance capacitor C12. Details of the transmission antenna 21 will be described later.
　受信器３は、送信器２からの電力を受信するものである。図１，２に示す受信器３は、受信アンテナ（受信コイル）３１及び共振用コンデンサＣ２１，Ｃ２２を有している。共振用コンデンサＣ２１，Ｃ２２は、受信アンテナ３１の共振条件を調整するものである。ここで、受信アンテナ３１は、一端が共振用コンデンサＣ２１の一端に接続され、他端が共振用コンデンサＣ２２の一端に接続されている。この受信アンテナ３１の詳細については後述する。 The receiver 3 receives power from the transmitter 2. The receiver 3 shown in FIGS. 1 and 2 has a receiving antenna (receiving coil) 31 and resonance capacitors C21 and C22. The resonance capacitors C21 and C22 adjust the resonance conditions of the reception antenna 31. Here, one end of the receiving antenna 31 is connected to one end of the resonance capacitor C21, and the other end is connected to one end of the resonance capacitor C22. Details of the receiving antenna 31 will be described later.
　なお、送信アンテナ２１と受信アンテナ３１との間の電力伝送方式は特に限定されるものではなく、磁界共鳴による方式、電界共鳴による方式、電磁誘導による方式の何れであってもよい。 The power transmission method between the transmitting antenna 21 and the receiving antenna 31 is not particularly limited, and any of a magnetic field resonance method, an electric field resonance method, and an electromagnetic induction method may be used.
　受信回路４は、受信器３に接続されたものである。この受信回路４は、一対の入力端子のうちの一方の端子が共振用コンデンサＣ２１の他端に接続され、他方の端子が共振用コンデンサＣ２２の他端に接続されている。この受信回路４としては、整流回路及び負荷から成る構成や、整流回路、受信電源（ＤＣ／ＤＣコンバータ）及び負荷から成る構成、負荷のみから成る構成等が挙げられる。 The receiving circuit 4 is connected to the receiver 3. In the receiving circuit 4, one terminal of the pair of input terminals is connected to the other end of the resonance capacitor C21, and the other terminal is connected to the other end of the resonance capacitor C22. Examples of the receiving circuit 4 include a configuration including a rectifier circuit and a load, a configuration including a rectifier circuit, a reception power source (DC / DC converter) and a load, and a configuration including only a load.
　次に、送信アンテナ２１及び受信アンテナ３１の詳細について説明する。
　実施の形態１に係る共振型無線電力伝送装置では、図１に示すように、送信アンテナ２１は、ヘリカル状（らせん状）に巻かれたコイル形状であり、且つ、両端面２１ａ，２１ｂが受信アンテナ３１側を向くように軸心形状が円弧状に構成されている。同様に、受信アンテナ３１は、ヘリカル状（らせん状）に巻かれたコイル形状であり、且つ、両端面３１ａ，３１ｂが送信アンテナ２１側を向くように軸心形状が円弧状に構成されている。なお図１Ｂでは、送信アンテナ２１のみを図示しているが、受信アンテナ３１についても同様である。
　そして、送信アンテナ２１及び受信アンテナ３１は、送信アンテナ２１の一方の端面２１ａと受信アンテナ３１の一方の端面３１ａとが対向され、送信アンテナ２１の他方の端面２１ｂと受信アンテナ３１の他方の端面３１ｂとが対向されるように配置されている。なお、送信アンテナ２１の端面２１ａ，２１ｂと受信アンテナ３１の端面３１ａ，３１ｂとの対向は、端面のうちの全ての面が厳密に対向していなくてもよく、例えば端面の７５％以上の面積が対向していればよい。 Next, details of the transmitting antenna 21 and the receiving antenna 31 will be described.
In the resonant wireless power transmission device according to the first embodiment, as shown in FIG. 1, the transmission antenna 21 has a helical (helical) coil shape, and both end faces 21a and 21b receive signals. The axial center shape is formed in an arc shape so as to face the antenna 31 side. Similarly, the receiving antenna 31 has a helical (helical) coil shape, and the axial center is formed in an arc shape so that both end faces 31a and 31b face the transmitting antenna 21 side. . In FIG. 1B, only the transmission antenna 21 is shown, but the same applies to the reception antenna 31.
The transmission antenna 21 and the reception antenna 31 are configured such that one end surface 21a of the transmission antenna 21 and one end surface 31a of the reception antenna 31 are opposed to each other, the other end surface 21b of the transmission antenna 21 and the other end surface 31b of the reception antenna 31 are opposed. Are arranged so as to face each other. Note that the end surfaces 21a and 21b of the transmission antenna 21 and the end surfaces 31a and 31b of the reception antenna 31 do not have to be strictly opposed to each other, for example, an area of 75% or more of the end surface. Should just face each other.
　このように、送信アンテナ２１の端面２１ａ，２１ｂと受信アンテナ３１の端面３１ａ，３１ｂとが対向されて配置されることで、磁界の漏れる箇所が減り、空間への漏洩磁界の発生を抑制することができる。なお図１Ａにおいて、一点鎖線は鎖交磁束（主磁束）の経路を示し、破線は漏洩磁束を示している。 As described above, the end surfaces 21a and 21b of the transmitting antenna 21 and the end surfaces 31a and 31b of the receiving antenna 31 are arranged to face each other, thereby reducing the number of magnetic field leaks and suppressing the generation of a leakage magnetic field into the space. Can do. In FIG. 1A, a one-dot chain line indicates a path of interlinkage magnetic flux (main magnetic flux), and a broken line indicates leakage magnetic flux.
　なお、送信アンテナ２１及び受信アンテナ３１の形状は、図１に示すような形状に限るものではなく、例えば図３に示すような形状としてもよい。
　図１では、送信アンテナ２１のコイルの巻き始めの位置と巻き終わりの位置とが反対側となっているが、図３では、送信アンテナ２１のコイルの巻き始めの位置と巻き終わりの位置とが同じ側となっている。この図３に示す送信アンテナ２１では、コイルを、巻き始めの位置から先端に向かってらせん状に巻き、同じ巻線方向のまま巻き始めの位置まで戻すように巻く。これにより、コイルの行きと帰りで、送信アンテナ２１に流れる電流の向きを同じ向きとすることができる。受信アンテナ３１についても送信アンテナ２１と同様に構成されている。また、図３に示す形状であっても等価回路は図２と同一である。 Note that the shapes of the transmission antenna 21 and the reception antenna 31 are not limited to the shapes shown in FIG. 1, and may be, for example, the shapes shown in FIG.
In FIG. 1, the winding start position and the winding end position of the transmission antenna 21 are opposite to each other, but in FIG. 3, the coil winding start position and the winding end position of the transmission antenna 21 are On the same side. In the transmitting antenna 21 shown in FIG. 3, the coil is wound spirally from the winding start position toward the tip, and is wound back to the winding start position with the same winding direction. Thereby, the direction of the electric current which flows into the transmission antenna 21 can be made into the same direction by the going of a coil and a return. The receiving antenna 31 is configured in the same manner as the transmitting antenna 21. Moreover, even if it is the shape shown in FIG. 3, an equivalent circuit is the same as FIG.
　また、送信アンテナ２１及び受信アンテナ３１の形状を、図４に示すように異なる形状としてもよい。図４では、送信アンテナ２１と受信アンテナ３１との巻数を変えた場合を示している。
　また上記では、送信アンテナ２１及び受信アンテナ３１の軸心形状を円弧状とした場合を示したが、これに限るものではなく、例えば角状としてもよい。 Further, the shapes of the transmitting antenna 21 and the receiving antenna 31 may be different as shown in FIG. FIG. 4 shows a case where the number of turns between the transmitting antenna 21 and the receiving antenna 31 is changed.
Moreover, although the case where the axial center shape of the transmitting antenna 21 and the receiving antenna 31 is an arc shape has been described above, the present invention is not limited to this, and may be a square shape, for example.
　以上のように、この実施の形態１によれば、らせん状に巻かれた送信アンテナ２１と、らせん状に巻かれた受信アンテナ３１とを備え、送信アンテナ２１の一方の端面２１ａと受信アンテナ３１の一方の端面３１ａとが対向され、当該送信アンテナ２１の他方の端面２１ｂと当該受信アンテナ３１の他方の端面３１ｂとが対向されたので、磁性体及び導体板を用いることなく、共振型無線電力伝送装置から発生する漏洩磁界を抑制することができる。 As described above, according to the first embodiment, the transmission antenna 21 wound spirally and the reception antenna 31 wound spirally are provided, and one end face 21a of the transmission antenna 21 and the reception antenna 31 are provided. Since the other end surface 21b of the transmitting antenna 21 and the other end surface 31b of the receiving antenna 31 are opposed to each other, the resonance type wireless power can be used without using a magnetic material and a conductor plate. The leakage magnetic field generated from the transmission device can be suppressed.
　また、磁性体及び導体板を用いずに漏洩磁界の発生を抑制することができるため、従来構成に対して装置全体を小型化及び軽量化できる。また、磁性体による鉄損は生じないため、従来構成に対し、装置全体での損失及び発熱が少なく、電力伝送効率を高めることができる。また、導体板による渦電流損は生じないため、従来構成に対し、装置全体での損失及び発熱が少なく、電力伝送効率を高めることができる。また、実施の形態１に係る共振型無線電力伝送装置は、送信アンテナ２１の端面２１ａ，２１ｂ及び受信アンテナ３１の端面３１ａ，３１ｂが開放されていないため、構造的にも漏洩磁界の発生が抑えられる。また、実施の形態１に係る共振型無線電力伝送装置は、特に大電力の無線電力伝送に対して、漏洩磁界の低減効果が大きくなる。 Also, since the generation of a leakage magnetic field can be suppressed without using a magnetic body and a conductor plate, the entire apparatus can be reduced in size and weight compared to the conventional configuration. Further, since iron loss due to the magnetic material does not occur, the loss and heat generation of the entire apparatus are less than in the conventional configuration, and the power transmission efficiency can be increased. Moreover, since eddy current loss due to the conductor plate does not occur, the loss and heat generation of the entire apparatus are less than in the conventional configuration, and the power transmission efficiency can be increased. In addition, since the end surfaces 21a and 21b of the transmitting antenna 21 and the end surfaces 31a and 31b of the receiving antenna 31 are not open in the resonant wireless power transmission device according to the first embodiment, the generation of the leakage magnetic field is suppressed structurally. It is done. In addition, the resonance type wireless power transmission apparatus according to Embodiment 1 has a large effect of reducing the leakage magnetic field, particularly for high power wireless power transmission.
実施の形態２．
　図５はこの発明の実施の形態２に係る共振型無線電力伝送装置の構成例を示す模式図である。この図５に示す実施の形態２に係る共振型無線電力伝送装置は、図１に示す実施の形態１に係る共振型無線電力伝送装置から共振用コンデンサＣ１１，Ｃ１２及び共振用コンデンサＣ２１，Ｃ２２を取除き、送信アンテナ２１及び受信アンテナ３１を開放型としたものである。その他の構成は同様であり、同一の符号を付してその説明を省略する。 Embodiment 2. FIG.
FIG. 5 is a schematic diagram showing a configuration example of a resonance type wireless power transmission apparatus according to Embodiment 2 of the present invention. The resonance type wireless power transmission device according to the second embodiment shown in FIG. 5 includes resonance capacitors C11 and C12 and resonance capacitors C21 and C22 from the resonance type wireless power transmission device according to the first embodiment shown in FIG. The transmission antenna 21 and the reception antenna 31 are open type. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
　実施の形態２における送信器２では、図５に示すように、送信アンテナ２１が第１，２の送信アンテナ２１１，２１２に分割されている。そして、第１の送信アンテナ２１１は、一端が送信電源１の一対の出力端子のうちの一方の端子に接続され、他端が開放されている。また、第２の送信アンテナ２１２は、一端が送信電源１の一対の出力端子のうちの他方の端子に接続され、他端が開放されている。
　同様に、実施の形態２における受信器３では、図５に示すように、受信アンテナ３１が第１，２の受信アンテナ３１１，３１２に分割されている。そして、第１の受信アンテナ３１１は、一端が開放され、他端が受信回路４の一対の入力端子のうちの一方の端子に接続されている。また、第２の受信アンテナ３１２は、一端が開放され、他端が受信回路４の一対の入力端子のうちの他方の端子に接続されている。 In the transmitter 2 according to Embodiment 2, the transmission antenna 21 is divided into first and second transmission antennas 211 and 212 as shown in FIG. The first transmission antenna 211 has one end connected to one of the pair of output terminals of the transmission power supply 1 and the other end open. The second transmission antenna 212 has one end connected to the other terminal of the pair of output terminals of the transmission power source 1 and the other end opened.
Similarly, in the receiver 3 according to the second embodiment, the receiving antenna 31 is divided into first and second receiving antennas 311 and 312 as shown in FIG. The first receiving antenna 311 has one end opened and the other end connected to one terminal of the pair of input terminals of the receiving circuit 4. The second receiving antenna 312 has one end opened and the other end connected to the other terminal of the pair of input terminals of the receiving circuit 4.
　そして、第１の送信アンテナ２１１の端面２１ａと第１の受信アンテナ３１１の端面３１ａとが対向され、第２の送信アンテナ２１２の端面２１ｂと第２の受信アンテナ３１２の端面３１ｂとが対向されるように配置されている。なお、送信アンテナ２１の端面２１ａ，２１ｂと受信アンテナ３１の端面３１ａ，３１ｂとの対向は、端面のうちの全ての面が厳密に対向していなくてもよく、例えば端面の７５％以上の面積が対向していればよい。 The end surface 21a of the first transmission antenna 211 and the end surface 31a of the first reception antenna 311 are opposed to each other, and the end surface 21b of the second transmission antenna 212 and the end surface 31b of the second reception antenna 312 are opposed to each other. Are arranged as follows. Note that the end surfaces 21a and 21b of the transmission antenna 21 and the end surfaces 31a and 31b of the reception antenna 31 do not have to be strictly opposed to each other, for example, an area of 75% or more of the end surface. Should just face each other.
　このように、共振用コンデンサＣ１１，Ｃ１２及び共振用コンデンサＣ２１，Ｃ２２を使用せず、送信アンテナ２１及び受信アンテナ３１を開放型とすることで、送信アンテナ２１及び受信アンテナ３１がそれぞれコイルの寄生容量を用いて自己共振を行い、自身の共振条件を調整することができる。また、図５に示すような構成としても、送信アンテナ２１の端面２１ａ，２１ｂと受信アンテナ３１の端面３１ａ，３１ｂとが対向されて配置されることで、磁界の漏れる箇所が減り、磁性体及び導体板を用いることなく、空間への漏洩磁界の発生を抑制することができる。 In this way, by using the transmitting antenna 21 and the receiving antenna 31 as an open type without using the resonant capacitors C11 and C12 and the resonant capacitors C21 and C22, the transmitting antenna 21 and the receiving antenna 31 are each of the parasitic capacitance of the coil. The self-resonance can be performed by using and the own resonance condition can be adjusted. Also, as shown in FIG. 5, the end surfaces 21a and 21b of the transmitting antenna 21 and the end surfaces 31a and 31b of the receiving antenna 31 are arranged to face each other, thereby reducing the number of magnetic field leak points, Generation of a leakage magnetic field into the space can be suppressed without using a conductor plate.
　また、磁性体及び導体板を用いずに漏洩磁界の発生を抑制することができるため、従来構成に対して装置全体を小型化及び軽量化できる。また、磁性体による鉄損は生じないため、従来構成に対し、装置全体での損失及び発熱が少なく、電力伝送効率を高めることができる。また、導体板による渦電流損は生じないため、従来構成に対し、装置全体での損失及び発熱が少なく、電力伝送効率を高めることができる。また、実施の形態２に係る共振型無線電力伝送装置は、特に大電力の無線電力伝送に対して、漏洩磁界の低減効果が大きくなる。 Also, since the generation of a leakage magnetic field can be suppressed without using a magnetic body and a conductor plate, the entire apparatus can be reduced in size and weight compared to the conventional configuration. Further, since iron loss due to the magnetic material does not occur, the loss and heat generation of the entire apparatus are less than in the conventional configuration, and the power transmission efficiency can be increased. Moreover, since eddy current loss due to the conductor plate does not occur, the loss and heat generation of the entire apparatus are less than in the conventional configuration, and the power transmission efficiency can be increased. In addition, the resonance type wireless power transmission apparatus according to Embodiment 2 has a large effect of reducing the leakage magnetic field, particularly for high power wireless power transmission.
実施の形態３．
　図６はこの発明の実施の形態３に係る共振型無線電力伝送装置の構成例を示す模式図である。この図６に示す実施の形態３に係る共振型無線電力伝送装置は、図１に示す実施の形態１に係る共振型無線電力伝送装置の送信アンテナ２１及び受信アンテナ３１を円錐型形状に変更したものである。その他の構成は同様であり、同一の符号を付してその説明を省略する。 Embodiment 3 FIG.
FIG. 6 is a schematic diagram showing a configuration example of a resonance type wireless power transmission apparatus according to Embodiment 3 of the present invention. In the resonant wireless power transmission apparatus according to the third embodiment shown in FIG. 6, the transmitting antenna 21 and the receiving antenna 31 of the resonant wireless power transmission apparatus according to the first embodiment shown in FIG. 1 are changed to a conical shape. Is. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
　実施の形態３における送信アンテナ２１では、端面２１ａ，２１ｂの径が当該端面２１ａ，２１ｂ以外の部分の径に対して大きく構成されている。図６では、端面２１ａ，２１ｂ側の径が、当該端面２１ａ，２１ｂ側以外の部分の径に対して端面２１ａ，２１ｂに向かって徐々に大きく構成された円錐型形状とされている。受信アンテナ３１についても送信アンテナ２１と同様に構成されている。 In the transmission antenna 21 according to the third embodiment, the diameters of the end faces 21a and 21b are configured to be larger than the diameters of the portions other than the end faces 21a and 21b. In FIG. 6, the end surfaces 21a and 21b have a conical shape in which the diameter on the side of the end surfaces 21a and 21b is gradually increased toward the end surfaces 21a and 21b with respect to the diameter of the portion other than the end surfaces 21a and 21b. The receiving antenna 31 is configured in the same manner as the transmitting antenna 21.
　このように、送信アンテナ２１及び受信アンテナ３１の端面２１ａ，２１ｂ，３１ａ，３１ｂの径を当該端面２１ａ，２１ｂ，３１ａ，３１ｂ以外の部分の径に対して大きく構成することで、実施の形態１における効果に加え、端面２１ａ，２１ｂ，３１ａ，３１ｂ同士を対向させ易くすることができる。また、一部の径のみを大きく構成することで、アンテナ全体の大型化を回避することができる。 As described above, the diameters of the end surfaces 21a, 21b, 31a, and 31b of the transmitting antenna 21 and the receiving antenna 31 are made larger than the diameters of the portions other than the end surfaces 21a, 21b, 31a, and 31b. In addition to the effects described above, the end faces 21a, 21b, 31a, 31b can be easily made to face each other. Moreover, the enlargement of only the one part diameter can avoid the enlargement of the whole antenna.
　なお図６では、送信アンテナ２１及び受信アンテナ３１の両方のアンテナの端面２１ａ，２１ｂ，３１ａ，３１ｂを大きく構成した場合を示したが、一方のアンテナのみの端面を大きく構成してもよい。また図６では、送信アンテナ２１及び受信アンテナ３１を円錐型形状とした場合を示したが、これに限るものではなく、端面２１ａ，２１ｂ，３１ａ，３１ｂの径が当該端面２１ａ，２１ｂ，３１ａ，３１ｂ以外の部分の径よりも大きい形状であればよく、任意の形状とすることができる。 Although FIG. 6 shows the case where the end faces 21a, 21b, 31a, 31b of both the transmitting antenna 21 and the receiving antenna 31 are configured to be large, the end face of only one antenna may be configured to be large. 6 shows the case where the transmitting antenna 21 and the receiving antenna 31 have a conical shape. However, the present invention is not limited to this, and the diameters of the end faces 21a, 21b, 31a, 31b are the end faces 21a, 21b, 31a, The shape may be any shape as long as it is larger than the diameter of the portion other than 31b.
　また上記では、図１に示す共振型無線電力伝送装置の送信アンテナ２１及び受信アンテナ３１の形状を変えた場合を示した。しかしながら、これに限るものではなく、図３～５に示すような他の共振型無線電力伝送装置についても同様に実施の形態３の構成を適用可能である。 In the above description, the case where the shapes of the transmitting antenna 21 and the receiving antenna 31 of the resonant wireless power transmission apparatus shown in FIG. 1 are changed is shown. However, the present invention is not limited to this, and the configuration of the third embodiment can be similarly applied to other resonant wireless power transmission apparatuses as shown in FIGS.
実施の形態４．
　図７はこの発明の実施の形態４に係る共振型無線電力伝送装置の構成例を示す模式図である。この図７に示す実施の形態４に係る共振型無線電力伝送装置は、図１に示す実施の形態１に係る共振型無線電力伝送装置に、中継器７を追加したものである。その他の構成は同様であり、同一の符号を付してその説明を省略する。 Embodiment 4 FIG.
FIG. 7 is a schematic diagram showing a configuration example of a resonance type wireless power transmission apparatus according to Embodiment 4 of the present invention. The resonance type wireless power transmission apparatus according to the fourth embodiment shown in FIG. 7 is obtained by adding a repeater 7 to the resonance type wireless power transmission apparatus according to the first embodiment shown in FIG. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
　中継器７は、１つ以上設けられ、送信器２と受信器３との間に介在されて配置されたものである。図７では、中継器７を２つ設け、各系統の符号に接尾記号（－１，－２）を付している。図７に示す中継器７は、共振用コンデンサＣ３１及び中継アンテナ（中継コイル）７１を有している。共振用コンデンサＣ３１は、中継アンテナ７１の共振条件を調整するものである。ここで、共振用コンデンサＣ３１は、一端が中継アンテナ７１の一端に接続され、他端が中継アンテナ７１の他端に接続されている。 One or more repeaters 7 are provided and arranged between the transmitter 2 and the receiver 3. In FIG. 7, two repeaters 7 are provided, and suffixes (-1, -2) are added to the codes of the respective systems. The repeater 7 shown in FIG. 7 includes a resonance capacitor C31 and a relay antenna (relay coil) 71. The resonance capacitor C31 adjusts the resonance condition of the relay antenna 71. Here, the resonance capacitor C31 has one end connected to one end of the relay antenna 71 and the other end connected to the other end of the relay antenna 71.
　また、中継アンテナ７１は、図７に示すように、ヘリカル状（らせん状）に巻かれたコイル形状であり、且つ、両端面７１ａ，７１ｂが、隣接するアンテナ（送信アンテナ２１、受信アンテナ３１又は他の中継アンテナ７１）側を向くように、軸心形状が円弧状に構成されている。
　そして、中継アンテナ７１の端面７１ａ，７１ｂが、上記隣接するアンテナの端面に対向されて配置されている。なおこの際、中継アンテナ７１の端面７１ａ，７１ｂと上記隣接するアンテナの端面との対向は、端面のうちの全ての面が厳密に対向していなくてもよく、例えば端面の７５％以上の面積が対向していればよい。 In addition, as shown in FIG. 7, the relay antenna 71 has a coil shape wound in a helical shape (spiral shape), and both end surfaces 71a and 71b are adjacent antennas (the transmitting antenna 21, the receiving antenna 31 or the antenna). The axial center shape is formed in an arc shape so as to face the other relay antenna 71) side.
The end surfaces 71a and 71b of the relay antenna 71 are arranged to face the end surfaces of the adjacent antennas. At this time, the end faces 71a and 71b of the relay antenna 71 and the end faces of the adjacent antennas may not face all of the end faces, for example, an area of 75% or more of the end faces. Should just face each other.
　このように、送信器２と受信器３との間に１つ以上の中継器７を介在させることで、実施の形態１における効果に加え、伝送距離を延長することができる。 Thus, by interposing one or more repeaters 7 between the transmitter 2 and the receiver 3, in addition to the effects in the first embodiment, the transmission distance can be extended.
　なお上記では、中継アンテナ７１の軸心形状を円弧状とした場合を示したが、これに限るものではなく、例えば角状としてもよい。また、図６と同様に、中継アンテナ７１の端面７１ａ，７１ｂの径を当該端面７１ａ，７１ｂ以外の部分の径よりも大きく構成してもよい。
　また上記では、中継器７が共振用コンデンサＣ３１及び中継アンテナ７１を有する場合を示した。しかしながら、これに限るものではなく、図５と同様に、共振用コンデンサＣ３１を取除き、中継アンテナ７１を開放型として、自己共振させるようにしてもよい。 In addition, although the case where the axial center shape of the relay antenna 71 is an arc shape has been described above, the present invention is not limited to this, and may be a square shape, for example. Similarly to FIG. 6, the diameters of the end faces 71a and 71b of the relay antenna 71 may be larger than the diameters of the portions other than the end faces 71a and 71b.
In the above description, the repeater 7 includes the resonance capacitor C31 and the relay antenna 71. However, the present invention is not limited to this, and similarly to FIG. 5, the resonance capacitor C31 may be removed, and the relay antenna 71 may be an open type and self-resonate.
　また上記では、図１に示す共振型無線電力伝送装置に中継器７を追加した場合を示した。しかしながら、これに限るものではなく、図３～６に示すような他の共振型無線電力伝送装置に中継器７を追加してもよい。 In the above description, the repeater 7 is added to the resonant wireless power transmission apparatus shown in FIG. However, the present invention is not limited to this, and the repeater 7 may be added to other resonance type wireless power transmission apparatuses as shown in FIGS.
　また、送信アンテナ２１、受信アンテナ３１及び中継アンテナ７１から成るループ形状は、図７に示す形状に限るものではなく、例えば図８に示すような形状としてもよい。なお図８では、図を見易くするため、送信アンテナ２１の一端（右端）と受信アンテナ３１の一端（左端）との間にのみ中継アンテナ７１が配置されているが、実際には、送信アンテナ２１の他端（左端）と受信アンテナ３１（右端）との間（図８に示す点線部分）にも中継アンテナ７１が配置されており、一巡のループが形成されている。 Further, the loop shape including the transmission antenna 21, the reception antenna 31, and the relay antenna 71 is not limited to the shape shown in FIG. 7, and may be a shape as shown in FIG. 8, for example. In FIG. 8, the relay antenna 71 is disposed only between one end (right end) of the transmission antenna 21 and one end (left end) of the reception antenna 31 for easy understanding of the drawing. The relay antenna 71 is also arranged between the other end (left end) of the antenna and the receiving antenna 31 (right end) (dotted line portion shown in FIG. 8), and a loop is formed.
実施の形態５．
　実施の形態５では、実施の形態１～４に示した共振型無線電力伝送装置の具体的な適用例について示す。図９はこの発明の実施の形態５に係る共振型無線電力伝送装置の適用例を示す模式図である。
　図９では、駐車場（固定部）１０１ａに送信装置５を設け、電気自動車（移動体）１０２ａに受信装置６を設けて、電気自動車１０２ａへの給電を行う場合を示している。なお図９では、共振型無線電力伝送装置のうちの送信アンテナ２１及び受信アンテナ３１のみを図示している。 Embodiment 5 FIG.
In the fifth embodiment, a specific application example of the resonance type wireless power transmission apparatus shown in the first to fourth embodiments will be described. FIG. 9 is a schematic diagram showing an application example of a resonance type wireless power transmission apparatus according to Embodiment 5 of the present invention.
FIG. 9 shows a case where the transmission device 5 is provided in the parking lot (fixed portion) 101a and the reception device 6 is provided in the electric vehicle (moving body) 102a to supply power to the electric vehicle 102a. In FIG. 9, only the transmitting antenna 21 and the receiving antenna 31 of the resonance type wireless power transmission apparatus are illustrated.
　また、送信電源１は、送信アンテナ２１への電力供給のオンオフを切替える機能（制御部）を有している。この際、送信電源１は、電気自動車１０２ａが駐車場１０１ａに停車して、送信アンテナ２１の端面２１ａ，２１ｂと受信アンテナ３１の端面３１ａ，３１ｂとが対向したと判定した場合に、当該送信アンテナ２１への電力供給を行う。この送信電源１における電力供給のオンオフ判定としては、例えば、物体検知センサを用いて電気自動車１０２ａの検知を行うことで判定してもよいし、送信装置５と受信装置６との間で通信を行うことで判定してもよい。 Further, the transmission power source 1 has a function (control unit) for switching on / off of power supply to the transmission antenna 21. At this time, the transmission power source 1 determines that the transmission vehicle antenna 102a stops at the parking lot 101a, and determines that the end surfaces 21a and 21b of the transmission antenna 21 and the end surfaces 31a and 31b of the reception antenna 31 face each other. Power is supplied to 21. The power supply ON / OFF determination in the transmission power source 1 may be determined by, for example, detecting the electric vehicle 102a using an object detection sensor, or communication between the transmission device 5 and the reception device 6 may be performed. You may determine by doing.
　図９に示すような電気自動車１０２ａへの給電では、大電力を扱うため、漏洩磁界が問題となる。しかしながら、実施の形態１～４に示した共振型無線電力伝送装置を用いることで、大電力を用いる場合であっても、漏洩磁界の発生を抑制することが可能となる。 In the power feeding to the electric vehicle 102a as shown in FIG. 9, since a large electric power is handled, a leakage magnetic field becomes a problem. However, by using the resonance type wireless power transmission apparatus shown in Embodiments 1 to 4, it is possible to suppress the generation of a leakage magnetic field even when large power is used.
実施の形態６．
　実施の形態６では、実施の形態１～４に示した共振型無線電力伝送装置の別の具体的な適用例について示す。図１０はこの発明の実施の形態６に係る共振型無線電力伝送装置の適用例を示す模式図である。
　図１０では、工場の製造ライン（固定部）１０１ｂに複数の送信装置５を設け、パレット（移動体）１０２ｂに１つ以上の受信装置６を設けて、パレット１０２ｂへの給電を行う場合を示している。なお図１０では、共振型無線電力伝送装置のうちの送信アンテナ２１及び受信アンテナ３１のみを図示している。 Embodiment 6 FIG.
In the sixth embodiment, another specific application example of the resonant wireless power transmission device shown in the first to fourth embodiments will be described. FIG. 10 is a schematic diagram showing an application example of a resonance type wireless power transmission apparatus according to Embodiment 6 of the present invention.
FIG. 10 shows a case where a plurality of transmission devices 5 are provided in a production line (fixed part) 101b of a factory, and one or more reception devices 6 are provided in a pallet (moving body) 102b to supply power to the pallet 102b. ing. In FIG. 10, only the transmitting antenna 21 and the receiving antenna 31 of the resonance type wireless power transmission apparatus are illustrated.
　図１０では、送信アンテナ２１は、製造ライン１０１ｂに沿って一定間隔で配置されている。また、受信アンテナ３１は、１つのパレット１０２ｂに対して２つ設けられている。なお図１０では、各系統の符号に接尾記号（－１，－２，・・・）を付している。 In FIG. 10, the transmitting antennas 21 are arranged at regular intervals along the production line 101b. Two receiving antennas 31 are provided for one pallet 102b. In FIG. 10, suffixes (-1, -2, ...) are added to the codes of the respective systems.
　また、送信電源１は、送信アンテナ２１への電力供給のオンオフを切替える機能（制御部）を有している。この際、送信電源１は、何れかの送信アンテナ２１の端面２１ａ，２１ｂと何れかの受信アンテナ３１の端面３１ａ，３１ｂとが対向したと判定した場合に、当該送信アンテナ２１への電力供給を行う。この送信電源１における電力供給のオンオフ判定としては、例えば、物体検知センサを用いてパレット１０２ｂの検知を行うことで判定してもよいし、送信装置５と受信装置６との間で通信を行うことで判定してもよいし、パレット１０２ｂの動作が既知の場合には電力供給のタイミングを予め設定してもよい。 Further, the transmission power source 1 has a function (control unit) for switching on / off of power supply to the transmission antenna 21. At this time, the transmission power source 1 supplies power to the transmission antenna 21 when it is determined that the end surfaces 21a and 21b of any one of the transmission antennas 21 and the end surfaces 31a and 31b of any one of the reception antennas 31 face each other. Do. The power supply ON / OFF determination in the transmission power source 1 may be determined by, for example, detecting the pallet 102b using an object detection sensor, or performing communication between the transmission device 5 and the reception device 6. The timing of power supply may be preset if the operation of the pallet 102b is known.
　図１０に示す状態では、パレット１０２ｂ－１に対しては、不図示の送信電源１－１は、送信アンテナ２１－１をオン状態とし、一方の受信アンテナ（例えば受信アンテナ３１－１）への電力伝送を行う。この際、不図示の送信電源１－２は、送信アンテナ２１－２をオフ状態とし、当該送信アンテナ２１－２及び他方の受信アンテナ（例えば受信アンテナ３１－２）は中継アンテナとして動作する。
　また、パレット１０２ｂ－２に対しては、不図示の送信電源１－４は、送信アンテナ２１－４をオン状態とし、受信アンテナ３１－４への電力伝送を行う。一方、不図示の送信電源１－３，１－５は、端面が対向していない送信アンテナ２１－３，２１－５をオフ状態とし、当該送信アンテナ２１－３，２１－５及び受信アンテナ３１－３は中継アンテナとしても動作しない。 In the state shown in FIG. 10, for the pallet 102b-1, the transmission power source 1-1 (not shown) turns on the transmission antenna 21-1 and connects to one reception antenna (for example, the reception antenna 31-1). Conduct power transmission. At this time, the transmission power supply 1-2 (not shown) turns off the transmission antenna 21-2, and the transmission antenna 21-2 and the other reception antenna (for example, the reception antenna 31-2) operate as a relay antenna.
For the pallet 102b-2, a transmission power supply 1-4 (not shown) turns on the transmission antenna 21-4 and transmits power to the reception antenna 31-4. On the other hand, transmission power supplies 1-3 and 1-5 (not shown) turn off the transmission antennas 21-3 and 21-5 whose end faces are not opposed to each other, and transmit the transmission antennas 21-3 and 21-5 and the reception antenna 31. -3 does not operate as a relay antenna.
　図１０に示すような工場におけるパレット１０２ｂへの給電であっても、漏洩磁界の発生を抑制することが可能となる。 Even when power is supplied to the pallet 102b in the factory as shown in FIG. 10, the generation of the leakage magnetic field can be suppressed.
　なお上記では、工場の製造ライン１０１ｂに複数の送信装置５を設け、パレット１０２ｂに１つ以上の受信装置６を設け、パレット１０２ｂへの給電を行う場合を示した。しかしながら、これに限るものではなく、例えば、道路面（固定部）に複数の送信装置５を設け、電気自動車（移動体）に１つ以上の受信装置６を設けて、移動している電気自動車への給電を行うように構成してもよい。 In the above description, the case where a plurality of transmission devices 5 are provided in the production line 101b of the factory, one or more reception devices 6 are provided in the pallet 102b, and power is supplied to the pallet 102b is shown. However, the present invention is not limited to this. For example, an electric vehicle that is moving by providing a plurality of transmitting devices 5 on a road surface (fixed portion) and providing one or more receiving devices 6 on an electric vehicle (moving body). You may comprise so that electric power feeding may be performed.
　なお上記では、送信アンテナ２１毎に送信電源１を設けた場合を想定して説明を行った。しかしながら、これに限るものではなく、複数の送信アンテナ２１に対して１つの送信電源１を設けるようにしてもよい。なおこの場合には、送信電源１は、各送信アンテナ２１に対する電力供給を個別にオンオフ切替え可能に構成されている。 In the above description, it is assumed that the transmission power source 1 is provided for each transmission antenna 21. However, the present invention is not limited to this, and one transmission power source 1 may be provided for a plurality of transmission antennas 21. In this case, the transmission power source 1 is configured to be able to individually switch the power supply to each transmission antenna 21 on and off.
　最後に、図１１を参照して、実施の形態５，６における送信電源１の制御部のハードウェア構成例を説明する。
　送信電源１の制御部における機能は、処理回路５０１により実現される。図１１に示すように、処理回路５０１は、専用のハードウェアであっても、メモリ５０３に格納されるプログラムを実行するＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ、中央処理装置、処理装置、演算装置、マイクロプロセッサ、マイクロコンピュータ、プロセッサ、ＤＳＰ（Ｄｉｇｉｔａｌ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｏｒ）ともいう）５０２であってもよい。 Finally, referring to FIG. 11, a hardware configuration example of the control unit of transmission power supply 1 in the fifth and sixth embodiments will be described.
The function in the control unit of the transmission power supply 1 is realized by the processing circuit 501. As shown in FIG. 11, even if the processing circuit 501 is dedicated hardware, a CPU (Central Processing Unit, a central processing unit, a processing unit, an arithmetic unit, a microprocessor, which executes a program stored in the memory 503, A microcomputer, a processor, and a DSP (Digital Signal Processor) 502 may also be used.
　処理回路５０１が専用のハードウェアである場合、処理回路５０１は、例えば、単一回路、複合回路、プログラム化したプロセッサ、並列プログラム化したプロセッサ、ＡＳＩＣ（Ａｐｐｌｉｃａｔｉｏｎ　Ｓｐｅｃｉｆｉｃ　Ｉｎｔｅｇｒａｔｅｄ　Ｃｉｒｃｕｉｔ）、ＦＰＧＡ（Ｆｉｅｌｄ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｇａｔｅ　Ａｒｒａｙ）、又はこれらを組み合わせたものが該当する。 When the processing circuit 501 is dedicated hardware, the processing circuit 501 includes, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), and an FPGA (Field Programmable Gate). Array) or a combination thereof.
　処理回路５０１がＣＰＵ５０２の場合、制御部の機能は、ソフトウェア、ファームウェア、又はソフトウェアとファームウェアとの組み合わせにより実現される。ソフトウェアやファームウェアはプログラムとして記述され、メモリ５０３に格納される。処理回路５０１は、メモリ５０３に記憶されたプログラムを読み出して実行することにより、制御部の機能を実現する。すなわち、送信電源は、処理回路５０１により実行されるときに、制御部の機能が結果的に実行されることになるプログラムを格納するためのメモリ５０３を備える。また、これらのプログラムは、制御部の手順や方法をコンピュータに実行させるものであるともいえる。ここで、メモリ５０３とは、例えば、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、フラッシュメモリ、ＥＰＲＯＭ（Ｅｒａｓａｂｌｅ　Ｐｒｏｇｒａｍｍａｂｌｅ　ＲＯＭ）、ＥＥＰＲＯＭ（Ｅｌｅｃｔｒｉｃａｌｌｙ　ＥＰＲＯＭ）等の、不揮発性又は揮発性の半導体メモリや、磁気ディスク、フレキシブルディスク、光ディスク、コンパクトディスク、ミニディスク、ＤＶＤ（Ｄｉｇｉｔａｌ　Ｖｅｒｓａｔｉｌｅ　Ｄｉｓｃ）等が該当する。 When the processing circuit 501 is the CPU 502, the function of the control unit is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in the memory 503. The processing circuit 501 realizes the function of the control unit by reading and executing the program stored in the memory 503. That is, the transmission power source includes a memory 503 for storing a program that, when executed by the processing circuit 501, results in the function of the control unit being executed as a result. Moreover, it can be said that these programs are what makes a computer perform the procedure and method of a control part. Here, the memory 503 is a nonvolatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable ROM), an EEPROM (Electrically EPROM), or the like. And a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD (Digital Versatile Disc), and the like.
　このように、処理回路５０１は、ハードウェア、ソフトウェア、ファームウェア、又はこれらの組み合わせによって、上述の各機能を実現することができる。 As described above, the processing circuit 501 can realize the above-described functions by hardware, software, firmware, or a combination thereof.
　なお、本願発明はその発明の範囲内において、各実施の形態の自由な組み合わせ、あるいは各実施の形態の任意の構成要素の変形、もしくは各実施の形態において任意の構成要素の省略が可能である。 In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .
　この発明に係る共振型無線電力伝送装置は、磁性体及び導体板を用いることなく、漏洩磁界の発生を抑制することができ、送信アンテナと受信アンテナとの間を無線で電力を伝送する共振型無線電力伝送装置等に用いるのに適している。 The resonance type wireless power transmission device according to the present invention can suppress the generation of a leakage magnetic field without using a magnetic body and a conductor plate, and can transmit power between a transmission antenna and a reception antenna wirelessly. Suitable for use in wireless power transmission devices and the like.
　１　送信電源、２　送信器、３　受信器、４　受信回路、５　送信装置、６　受信装置、７　中継器、２１　送信アンテナ、２１ａ，２１ｂ　端面、３１　受信アンテナ、３１ａ，３１ｂ　端面、７１　中継アンテナ、７１ａ，７１ｂ　端面、１０１ａ　駐車場（固定部）、１０１ｂ　製造ライン（固定部）、１０２ａ　車両（移動体）、１０２ｂ　パレット（移動体）、２１１，２１２　第１，２の送信アンテナ、３１１，３１２　第１，２の受信アンテナ、５０１　処理回路、５０２　ＣＰＵ、５０３　メモリ。 1 transmission power source, 2 transmitter, 3 receiver, 4 receiving circuit, 5 transmitting device, 6 receiving device, 7 repeater, 21 transmitting antenna, 21a, 21b end face, 31 receiving antenna, 31a, 31b end face, 71 relay antenna, 71a, 71b end face, 101a parking lot (fixed part), 101b production line (fixed part), 102a vehicle (moving body), 102b pallet (moving body), 211, 212, first and second transmitting antennas, 311, 312th 1, 2 receiving antennas, 501 processing circuit, 502 CPU, 503 memory.

Claims (7)

  1. 　らせん状に巻かれた送信アンテナと、
    　らせん状に巻かれた受信アンテナとを備え、
    　前記送信アンテナの一方の端面と前記受信アンテナの一方の端面とが対向され、当該送信アンテナの他方の端面と当該受信アンテナの他方の端面とが対向された
    　ことを特徴とする共振型無線電力伝送装置。     A transmitting antenna wound in a spiral,
    A receiving antenna wound in a spiral,
    One end face of the transmitting antenna and one end face of the receiving antenna are opposed to each other, and the other end face of the transmitting antenna is opposed to the other end face of the receiving antenna. apparatus.
  2. 　前記送信アンテナ及び前記受信アンテナのうち少なくとも一方は、端面の径が当該端面以外の部分の径に対して大きく構成された
    　ことを特徴とする請求項１記載の共振型無線電力伝送装置。     The resonance type wireless power transmission device according to claim 1, wherein at least one of the transmitting antenna and the receiving antenna is configured such that a diameter of an end face is larger than a diameter of a portion other than the end face.
  3. 　らせん状に巻かれ、前記送信アンテナと前記受信アンテナとの間に介在された１つ以上の中継アンテナを備え、
    　前記中継アンテナは、端面が、前記送信アンテナ、前記受信アンテナ又は他の前記中継アンテナの端面に対向された
    　ことを特徴とする請求項１記載の共振型無線電力伝送装置。     One or more relay antennas wound in a spiral and interposed between the transmitting antenna and the receiving antenna;
    The resonance type wireless power transmission device according to claim 1, wherein an end surface of the relay antenna is opposed to an end surface of the transmission antenna, the reception antenna, or another relay antenna.
  4. 　前記送信アンテナと前記受信アンテナは、磁界共鳴、電界共鳴又は電磁誘導により電力伝送を行う
    　ことを特徴とする請求項１記載の共振型無線電力伝送装置。     The resonance type wireless power transmission device according to claim 1, wherein the transmission antenna and the reception antenna perform power transmission by magnetic field resonance, electric field resonance, or electromagnetic induction.
  5. 　前記送信アンテナは固定部に設けられ、
    　前記受信アンテナは、前記固定部に対向可能な移動体に設けられた
    　ことを特徴とする請求項１記載の共振型無線電力伝送装置。     The transmitting antenna is provided in a fixed portion;
    The resonance type wireless power transmission apparatus according to claim 1, wherein the reception antenna is provided on a movable body that can face the fixed portion.
  6. 　前記送信アンテナは前記移動体の移動方向に沿って複数配置された
    　ことを特徴とする請求項５記載の共振型無線電力伝送装置。     The resonance type wireless power transmission apparatus according to claim 5, wherein a plurality of the transmission antennas are arranged along a moving direction of the moving body.
  7. 　前記受信アンテナは前記移動体に複数設けられた
    　ことを特徴とする請求項６記載の共振型無線電力伝送装置。     The resonance type wireless power transmission device according to claim 6, wherein a plurality of the receiving antennas are provided on the moving body.
PCT/JP2016/056051 2016-02-29 2016-02-29 Resonance-type wireless power transmission device WO2017149599A1 (en)

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