WO2014200024A1 - Power feeding device and power feeding system - Google Patents

Power feeding device and power feeding system Download PDF

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Publication number
WO2014200024A1
WO2014200024A1 PCT/JP2014/065479 JP2014065479W WO2014200024A1 WO 2014200024 A1 WO2014200024 A1 WO 2014200024A1 JP 2014065479 W JP2014065479 W JP 2014065479W WO 2014200024 A1 WO2014200024 A1 WO 2014200024A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
coil unit
side coil
power
supply side
Prior art date
Application number
PCT/JP2014/065479
Other languages
French (fr)
Japanese (ja)
Inventor
柳田　曜
Original Assignee
矢崎総業株式会社
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
Publication date
Priority claimed from JP2013124540A external-priority patent/JP6148545B2/en
Priority claimed from JP2013124539A external-priority patent/JP6148544B2/en
Application filed by 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Publication of WO2014200024A1 publication Critical patent/WO2014200024A1/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
    • 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
    • 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
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • 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
    • B60L53/124—Detection or removal of foreign bodies
    • 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
    • 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
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • 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
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • 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
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • 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
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • 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
    • Y02T90/12—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 invention relates to a power supply device and a power supply system, and more particularly to a power supply device that supplies power to a power receiving side coil unit mounted on a vehicle in a contactless manner and a power supply system including the power supply device.
  • wireless power feeding without using a power cord or a power transmission cable has attracted attention as a power feeding system for charging a battery mounted on a hybrid vehicle or an electric vehicle.
  • this wireless power feeding one of a pair of coil units is installed on the ground of a power feeding facility, and the other is mounted on a vehicle, and electromagnetic induction or coiling from a coil unit installed on the power feeding facility to a coil unit mounted on the vehicle is performed. Electric power is supplied in a non-contact manner by magnetic resonance.
  • Patent Documents 1 to 3 a foreign matter on the coil unit is detected by a foreign matter detection sensor, and when a foreign matter is detected, the user is warned or power supply is stopped.
  • Patent Documents 1 to 3 since a large magnetic field is generated in the coil unit, it is difficult to increase the detection accuracy of the abnormality detection sensor, and there is a problem in terms of cost.
  • the invention described in claim 1 for solving the above-described problem includes a power feeding side coil unit that feeds power in a non-contact manner with respect to a power receiving side coil unit mounted on a vehicle, and the power feeding side coil unit.
  • a moving means that moves between a standby position that is arranged when the power supply is not performed and a power supply position that is arranged when the power is supplied; and a power supply side coil unit between the standby position and the power supply position.
  • a power supply device comprising: a first foreign matter removing unit that is provided on a movement path and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove foreign matter.
  • the invention according to claim 2 resides in the power supply apparatus according to claim 1, wherein the first foreign matter removing means is configured by a brush or a wiper that sweeps the upper surface of the power supply side coil unit.
  • the invention according to claim 3 is provided with a second foreign matter removing means that is attached to the power supply side coil unit and sweeps the top surface of the power supply side coil unit or blows air to the top surface of the power supply side coil unit to remove foreign matter. It exists in the electric power feeder of Claim 1 or 2 characterized by the above-mentioned.
  • the moving means has a hollow hollow rail for running the power feeding side coil unit, and a first blower fan that blows air into the hollow rail from the standby position side, and the power feeding A first air duct that is provided at a position and discharges air from the hollow rail toward the upper surface of the power supply side coil unit disposed at the power supply position. It exists in the electric power feeding apparatus of description.
  • the invention according to claim 5 is a power feeding device including a power feeding side coil unit that feeds power in a non-contact manner to a power receiving side coil unit mounted on a vehicle, and is attached to the power feeding side coil unit.
  • the power supply apparatus includes a second foreign matter removing unit that sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove foreign matter.
  • the second foreign matter removing means includes a second blower duct projecting upward to discharge the second blower fan and the blower from the second blower fan toward the upper surface of the power supply side coil unit; A brush or a wiper that sweeps the upper surface of the power supply side coil unit, and further includes an upward protruding protrusion that positions the power supply side coil unit between the second air duct and the second air duct.
  • the rail for moving the said brush or a wiper is provided in the upper surface of a ventilation duct and a convex part, It exists in the electric power feeder of Claim 5 characterized by the above-mentioned.
  • a power feeding system including the power feeding device according to any one of the first to sixth aspects and a vehicle on which the power receiving side coil unit is mounted.
  • the power supply system includes a blower fan, and a third blower duct that discharges air blown from the third blower fan toward the upper surface of the power supply side coil unit.
  • the first foreign matter removing means is provided on the moving path of the power supply side coil unit between the standby position and the power supply position, and sweeps the upper surface of the power supply side coil unit. Or it blows on the upper surface of the power supply side coil unit to remove the foreign matter. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor. For this reason, it can prevent charging with the foreign material mounted on the upper surface of the power supply side coil unit at low cost.
  • the second foreign matter removing means is attached to the power supply side coil unit and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove the foreign matter. Therefore, even if foreign matter is placed after passing through the first foreign matter removing means, it can be removed.
  • a 1st ventilation fan ventilates in the hollow rail which drive
  • the second foreign matter removing means is attached to the power supply side coil unit and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove the foreign matter. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor.
  • the space between the second air fan and the second air duct and the brush or the wiper can be reduced.
  • Two types of second foreign matter removing means can be provided.
  • the vehicle includes the third blower fan and the third blower duct that discharges the blown air from the third blower fan toward the upper surface of the power supply side coil unit. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor.
  • FIG. 1 is a circuit diagram showing a power feeding system incorporating a power feeding device of the present invention in a first embodiment. It is a perspective view of the electric power feeder shown in FIG. It is the II sectional view taken on the line of FIG. It is explanatory drawing for demonstrating arrangement
  • the power feeding system 1 includes a power feeding device 2 disposed in a power feeding facility such as a parking lot of the vehicle, and a vehicle 10 (see FIG. 4) on which the power receiving device 3 is mounted. .
  • the power supply device 2 includes a high frequency power source 21 that supplies high frequency power, a power supply side coil unit 22 that is supplied with high frequency power from the high frequency power source 21, and a power supply side for adjusting the resonance frequency.
  • the capacitor C1, the matching unit 23, and the control unit 24 that controls the entire power supply apparatus 2 are provided.
  • the high frequency power source 21 generates high frequency power and supplies it to the power supply side coil unit 22.
  • the high frequency power generated by the high frequency power source 21 is provided so as to be equal to the resonance frequency of a power supply side resonance coil 22A and a power reception side resonance coil 31A described later.
  • the feeding-side coil unit 22 includes a feeding-side resonance coil 22A to which high-frequency power is supplied from the high-frequency power source 21, and a housing case 22B (see FIG. 2) that houses the feeding-side resonance coil 22A.
  • the power supply side capacitor C1 is connected in series with the power supply side resonance coil 22A, for example, and forms a resonance circuit together with the power supply side resonance coil 22A.
  • the power supply side capacitor C1 is connected in series with the power supply side resonance coil 22A, but may be connected in parallel.
  • the matching unit 23 is a circuit for matching impedances between the high-frequency power source 21 and the resonance circuit including the feeding-side resonance coil 22A and the feeding-side capacitor C1.
  • the power receiving device 3 includes a power receiving side coil unit 31 that receives power from the power feeding side coil unit 22 in a non-contact manner, a power receiving side capacitor C2 that adjusts the resonance frequency, and a power receiving side coil unit 31 that receives power.
  • a rectifier 32 that converts the high-frequency power into DC power, and an in-vehicle battery 33 to which the DC power converted by the rectifier 32 is supplied.
  • the power receiving side coil unit 31 includes a power receiving side resonance coil 31A that magnetically resonates with the power feeding side resonance coil 22A, a housing case (not shown) that houses the power receiving side resonance coil 31A, and the like.
  • the power receiving side capacitor C2 is connected in series with the power receiving side resonance coil 31A, for example, and forms a resonance circuit together with the power receiving side resonance coil 31A.
  • the power receiving side capacitor C2 is connected in series with the power receiving side resonance coil 31A, but may be connected in parallel.
  • the control unit 24 includes a well-known microcomputer having a ROM, a RAM, and a CPU, and controls on / off of the high-frequency power source 21.
  • the power reception device 3 of the vehicle 10 approaches the power supply device 2 provided on the ground of the power supply facility, and the power supply resonance coil 22A and the power reception resonance coil 31A face each other.
  • the control unit 24 causes the high-frequency power source 21 to generate high-frequency power and supply the high-frequency power to the power-feeding resonance coil 22A
  • the power-feeding-side resonance coil 22A and the power-receiving-side resonance coil 31A magnetically resonate.
  • the coil 31A receives high frequency power.
  • the high frequency power received by the power receiving side resonance coil 31 ⁇ / b> A is converted into direct current power by the rectifier 32 and charged to the in-vehicle battery 33.
  • the power supply device 2 includes a power supply box B1, a storage box B2, a hollow rail 25 as a moving means, a cable 26, a brush 27 as a first foreign matter removing means, and a first blower fan.
  • F1 FIG. 1
  • F1 FIG. 1
  • the power supply box B1 is formed in a substantially box shape and accommodates a high frequency power supply 21, a matching unit 23, a power supply side capacitor C1, a control unit 24, and the like. As shown in FIG. 4, the power supply box B ⁇ b> 1 is disposed near the wall of the building because it receives power from the outlet C.
  • the housing box B2 is also formed in a substantially box shape as shown in FIG. 2, and the power feeding side coil unit 22 is housed inside when the power feeding is not performed. That is, the inside of the storage box B2 is a standby position. In the present embodiment, the storage box B2 is provided integrally with the power supply box B1.
  • a pair of the hollow rails 25 are provided in parallel to each other on the ground between the storage box B2 which is a standby position and a power supply position which is arranged at the time of power supply.
  • the hollow rail 25 is formed in a hollow shape.
  • the hollow rail 25 is provided on the ground, but may be provided so as to be embedded in the ground and to expose only the upper surface.
  • the power supply side coil unit 22 further includes a wheel 22C for traveling on the pair of hollow rails 25 and a motor M (FIG. 1) for driving the wheel 22C. .
  • the power feeding side coil unit 22 is provided so as to be movable between the accommodation box B2 and the power feeding position.
  • the driving of the motor M is controlled by the control unit 24.
  • the cable 26 electrically connects the power supply box B1 and the power supply side coil unit 22.
  • the housing box B2 is provided with a winding mechanism (not shown) that winds the cable 26, and winds up the extra length of the cable 26 when the power supply side coil unit 22 is housed in the housing box B2.
  • the storage box B2 is provided with an entrance opening on the power feeding position side.
  • the feeding side coil unit 22 can enter and exit the storage box B2 from this entrance.
  • the brush 27 is provided at the upper end of the entrance / exit of the storage box B2. Thereby, when the brush 27 goes out of the storage box B2 from the entrance / exit, the upper surface of the power supply side coil unit 22 is swept to remove foreign matters.
  • the first blower fan F1 is a fan for cooling the high-frequency power source 21, and its control is controlled by the control unit 24.
  • a duct (not shown) for connecting the first blower fan F1 and the hollow rail 25 is provided in the power supply box B1 and the storage box B2. Thereby, it blows in the hollow rail 25 from the 1st ventilation fan F1.
  • Said 1st ventilation duct D1 is comprised with resin etc. which do not affect electric power transmission, is provided in the electric power feeding position, and directs the ventilation of the hollow rail 25 to the upper surface of the electric power feeding side coil unit 22 arrange
  • one end of the first air duct D1 is connected to the hollow rail 25, and the opening on the other end side is provided in a U shape toward the upper surface of the power supply side coil unit 22.
  • the width of the first air duct D ⁇ b> 1 is provided substantially the same as the width of the power supply side coil unit 22.
  • the power supply side coil unit 22 is arranged in the accommodation box B2 when power is not supplied. As shown in FIG. 4, when the controller 24 detects that the vehicle 10 equipped with the power receiving side coil unit 31 has stopped in the parking space by a sensor (not shown) or the like, the controller 24 drives the motor M to The power supply side coil unit 22 is moved to the power supply position.
  • the brush 27 provided at the upper end sweeps the upper surface of the power supply side coil unit 22 to remove foreign matter.
  • control unit 24 drives the first blower fan F1.
  • the wind from the first blower fan F1 passes through the hollow rail 25 and the first blower duct D1 and is blown onto the power supply side coil unit 22 arranged at the power supply position, so that foreign matters can be removed.
  • control unit 24 controls the high frequency power source 21 to supply the high frequency power to the power supply side resonance coil 22 ⁇ / b> A to charge the in-vehicle battery 33 mounted on the vehicle 10.
  • control unit 24 stops driving the first blower fan F1 and controls the motor M to move the power supply side coil unit 22 from the power supply position toward the accommodation box B2. In the storage box B2.
  • the brush 27 is provided on the movement path of the power supply side coil unit 22 between the standby position and the power supply position, and sweeps the upper surface of the power supply side coil unit 22 to remove foreign substances. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor. For this reason, it can prevent charging with the foreign material mounted on the upper surface of the power supply side coil unit 22 at a low cost.
  • the 1st ventilation fan F1 ventilates in the hollow rail 25 which runs the electric power feeding side coil unit 22, and the 1st ventilation duct D1 provided in the electric power feeding position is a hollow rail.
  • the air blown from 25 is discharged toward the upper surface of the power supply side coil unit 22 arranged at the power supply position.
  • the hollow rail 25 can be diverted and the wind from the 1st ventilation fan F1 provided in the stand-by position can be sent to the upper surface of the electric power feeding side coil unit 22 cheaply.
  • the power supply side coil unit 22 can be cooled by constantly applying air to the upper surface of the power supply side coil unit 22 during power supply.
  • storage box B2 was provided integrally with power supply box B1, it is not restricted to this. As shown in FIG. 5, the storage box B2 and the power supply box B1 may be provided separately. In this case, since there is no restriction on the arrangement position of the accommodation box B2, the accommodation box B2 can be arranged near the stop position of the vehicle 10 as shown in FIG.
  • the brush 27 is provided at the entrance / exit of the storage box B2, but the present invention is not limited to this.
  • the brush 27 may be provided on the moving path between the standby position of the power supply side coil unit 22 and the power supply position, and may be provided separately from the storage box B2.
  • the brush 27 is used as the first foreign matter removing means, but the present invention is not limited to this.
  • a wiper may be used.
  • a blower fan may be provided to blow air to the upper surface of the power supply side coil unit 22.
  • the electric power feeding side coil unit 22 is discharged
  • the air may be blown from the vehicle 10 side.
  • the vehicle 10 includes a third blower fan F3 and a third blower duct D3 that discharges air from the third blower fan F3 toward the upper surface of the power supply side coil unit 22.
  • the 3rd ventilation fan F3 you may divert what was provided for cooling of the vehicle-mounted battery 33, for example.
  • the third air duct D2 may be provided with an opening / closing mechanism so that the in-vehicle ECU can open and blow air only during charging.
  • a battery monitoring ECU may be used as the in-vehicle ECU.
  • the power supply device 2 is configured to supply air from the power supply box B ⁇ b> 1, the cable 25, the second blower fan F ⁇ b> 2, and the second blower fan F ⁇ b> 2 toward the upper surface of the power supply side coil unit 22.
  • a second air duct D2 for discharging, a brush 28, a convex portion 29, and a motor M (FIG. 1) for driving the brush 28 are further provided.
  • the second blower fan F2 and the second blower duct D2 and the brush 28 constitute second foreign matter removing means in the claims.
  • the power supply box B1 is housed in a box shape, and contains the high-frequency power source 21, the matching unit 23, the power supply side capacitor C1, the control unit 24, and the like.
  • the power supply box B1 is disposed near the wall of the building because it receives power from an outlet.
  • the power supply side coil unit 22 is fixed to the ground of the parking lot, and the cable 25 electrically connects the power supply box B1 and the power supply side coil unit 22.
  • the second blower fan F2 and the second blower duct D2, and the brush 28 are attached to the power supply side coil unit 22.
  • the 2nd ventilation fan F2 is accommodated in the 2nd ventilation duct D2 and the accommodation case 22B which are mentioned later.
  • the 2nd ventilation duct D2 is provided so that the lower end may be connected with storage case 22B, and the upper end is provided so that it may protrude rather than storage case 22B.
  • An exhaust port E is provided on the inner surface of the portion of the second air duct D2 that protrudes from the housing case 22B.
  • the second air duct D2 is provided in a long shape along one side of the housing case 22B. Therefore, the wind from the second blower fan F ⁇ b> 2 is discharged from the exhaust port E through the second blower duct D ⁇ b> 2 and sent to the upper surface of the power supply side coil unit 22.
  • the brush 28 is provided along one side orthogonal to the one side where the second air duct D2 of the housing case 22B is provided.
  • the convex portion 29 is provided along one side facing the one side where the second air duct D2 of the housing case 22B is provided, and is provided so as to protrude upward from the housing case 22B.
  • the power supply side coil unit 22, that is, the housing case 22 ⁇ / b> B is positioned between the second air duct D ⁇ b> 2 and the convex portion 29.
  • rails 28a for moving the brush 28 are provided on the upper surfaces of the second air duct D2 and the convex portion 29. Wheels (not shown) are provided at both ends of the brush 28, and the brush 28 travels on the rail 28a.
  • the motor M drives a wheel (not shown) of the brush 28 so that the brush 28 travels on the rail 28a. Thereby, the brush 28 sweeps the upper surface of the storage case 22B and removes the foreign matter.
  • control unit 24 detects that the vehicle 10 equipped with the power receiving side coil unit 31 is stopped at the parking lot by a sensor or the like (not shown), the control unit 24 drives the motor M and drives the brush 28 to accommodate the vehicle. The top surface of the case 22B is swept to remove foreign matter. Then, the control part 24 drives the 2nd ventilation fan F2, and ventilates the upper surface of the storage case 22B. Further, the control unit 24 drives the high frequency power source 21 to supply high frequency power to the power supply side resonance coil 22 ⁇ / b> A to charge the in-vehicle battery 33 mounted on the vehicle 10. When charging of the in-vehicle battery 33 ends, the control unit 24 stops driving the second blower fan F2.
  • the 2nd ventilation fan F2, the 2nd ventilation duct D2, and the brush 28 are attached to the electric power feeding side coil unit 22, and sweep the upper surface of the electric power feeding side coil unit 22, or an electric power feeding side coil unit 22 Air is blown to the upper surface to remove foreign matter. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor.
  • the 2nd ventilation fan F2, the 2nd ventilation duct D2, and the brush 28 were attached to the electric power feeding side coil unit 22 fixed to the ground, it is not restricted to this.
  • the second blower fan F2, the second blower duct D2, and the brush 28 are attached to the power supply side coil unit 22 that moves between the standby position and the power supply position in the storage box B2. May be. In this case, even if a foreign substance is placed after passing through the brush 27 arranged in the storage box B2, it can be removed.
  • the 2nd ventilation fan F2 and the 2nd ventilation duct D2, and the brush 28, were provided as a 2nd foreign material removal means, It was restricted to this. is not.
  • the second blower fan F ⁇ b> 2 and the second blower duct D ⁇ b> 2 may be attached to the power supply side coil unit 22.
  • the second air duct D ⁇ b> 2 is formed in a U shape, but may be provided in the same manner as in FIG. 8.
  • the brush 28 may be attached to the power supply side coil unit 22.
  • the height of the portion where the rail 28 a is formed is provided to be the same as that of the storage case 22 ⁇ / b> B, but may be provided so as to protrude from the storage case 22 ⁇ / b> B as in FIG. 8. .
  • the brush 28 is provided.
  • the present invention is not limited to this, and a wiper may be provided instead of the brush 28.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A power supply-side coil unit (22) of a power feeding device (2) wirelessly supplies power to a power receiving-side coil unit (31) mounted on a vehicle (10). The power supply-side coil unit (22) is provided so as to be movable using hollow rails (25) between a standby position inside a storage box (B1) where the power supply-side coil unit (22) is placed when power feeding is not performed and a power feeding position where the power supply-side coil unit (22) is placed when power feeding is performed. A brush (27) is provided between the standby position and the power feeding position and on a path through which the power supply-side coil unit (22) moves and brushes the upper surface of the power supply-side coil unit (22), thereby removing foreign matter.

Description

給電装置及び給電システムPower supply apparatus and power supply system
　本発明は、給電装置及び給電システムに係り、特に、車両に搭載された受電側コイルユニットに対して非接触で電力を給電する給電装置及び当該給電装置を備えた給電システムに関するものである。 The present invention relates to a power supply device and a power supply system, and more particularly to a power supply device that supplies power to a power receiving side coil unit mounted on a vehicle in a contactless manner and a power supply system including the power supply device.
　近年、ハイブリッド自動車や電気自動車などに搭載されたバッテリを充電する給電システムとして、電源コードや送電ケーブルを用いないワイヤレス給電が注目されている。このワイヤレス給電では、一対のコイルユニットの一方を給電設備の地面に設置し、他方を車両に搭載して、給電設備に設置されたコイルユニットから車両に搭載されたコイルユニットに対して電磁誘導や磁界共鳴などにより非接触で電力を供給している。 In recent years, wireless power feeding without using a power cord or a power transmission cable has attracted attention as a power feeding system for charging a battery mounted on a hybrid vehicle or an electric vehicle. In this wireless power feeding, one of a pair of coil units is installed on the ground of a power feeding facility, and the other is mounted on a vehicle, and electromagnetic induction or coiling from a coil unit installed on the power feeding facility to a coil unit mounted on the vehicle is performed. Electric power is supplied in a non-contact manner by magnetic resonance.
　上述したように給電設備に設けられたコイルユニットは、地面に設置されているため、金属物などの異物がその上面に載ってしまう恐れがあった。異物が搭載されたまま給電が行われると、コイルユニット間の結合状態が影響を受けるため、伝送効率が低下する、などの不都合が生じていた。 As described above, since the coil unit provided in the power supply facility is installed on the ground, there is a possibility that foreign matters such as metal objects may be placed on the upper surface. If power is supplied with foreign matter mounted, the coupling state between the coil units is affected, causing inconveniences such as reduced transmission efficiency.
　そこで、従来では、コイルユニット上の異物を異物検出センサにより検出し、異物が検出されると、その旨をユーザに警報したり、給電を停止していた（特許文献１～３）。しかしながら、コイルユニットでは大きな磁界が発生するため、異常検出センサの検出精度を高めるのは難しく、コスト的にも問題があった。 Therefore, conventionally, a foreign matter on the coil unit is detected by a foreign matter detection sensor, and when a foreign matter is detected, the user is warned or power supply is stopped (Patent Documents 1 to 3). However, since a large magnetic field is generated in the coil unit, it is difficult to increase the detection accuracy of the abnormality detection sensor, and there is a problem in terms of cost.
特開２０１２－２２８１２１号公報JP 2012-228121 A 特開２０１２－２２８１２２号公報JP 2012-228122 A 特開２０１２－２２８１２３号公報JP 2012-228123 A
　そこで、本発明は、安価に給電側コイルユニット上面に異物が搭載されたまま充電されることを防止できる給電装置及び給電システムを提供することを課題とする。 Therefore, it is an object of the present invention to provide a power feeding device and a power feeding system that can prevent charging with foreign matters mounted on the upper surface of the power feeding side coil unit at low cost.
　上述した課題を解決するための請求項１に記載された発明は、車両に搭載された受電側コイルユニットに対して非接触で電力を給電する給電側コイルユニットと、前記給電側コイルユニットを、前記給電を行わないときに配置される待機位置と、前記給電時に配置される給電位置と、の間で移動させる移動手段と、前記待機位置と前記給電位置との間の前記給電側コイルユニットの移動経路上に設けられ、前記給電側コイルユニット上面を掃く、または、前記給電側コイルユニット上面に送風して、異物を除去する第１異物除去手段と、を備えたことを特徴とする給電装置に存する。 The invention described in claim 1 for solving the above-described problem includes a power feeding side coil unit that feeds power in a non-contact manner with respect to a power receiving side coil unit mounted on a vehicle, and the power feeding side coil unit. A moving means that moves between a standby position that is arranged when the power supply is not performed and a power supply position that is arranged when the power is supplied; and a power supply side coil unit between the standby position and the power supply position. A power supply device, comprising: a first foreign matter removing unit that is provided on a movement path and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove foreign matter. Exist.
　請求項２記載の発明は、前記第１異物除去手段が、前記給電側コイルユニット上面を掃くブラシ又はワイパーから構成されていることを特徴とする請求項１に記載の給電装置に存する。 The invention according to claim 2 resides in the power supply apparatus according to claim 1, wherein the first foreign matter removing means is configured by a brush or a wiper that sweeps the upper surface of the power supply side coil unit.
　請求項３記載の発明は、前記給電側コイルユニットに取り付けられ、前記給電側コイルユニット上面を掃く、または、前記給電側コイルユニット上面に送風して、異物を除去する第２異物除去手段を備えたことを特徴とする請求項１又は２に記載の給電装置に存する。 The invention according to claim 3 is provided with a second foreign matter removing means that is attached to the power supply side coil unit and sweeps the top surface of the power supply side coil unit or blows air to the top surface of the power supply side coil unit to remove foreign matter. It exists in the electric power feeder of Claim 1 or 2 characterized by the above-mentioned.
　請求項４記載の発明は、前記移動手段が、前記給電側コイルユニットを走行させる中空状の中空レールを有し、前記待機位置側から前記中空レール内に送風する第１送風ファンと、前記給電位置に設けられ、前記中空レールからの送風を前記給電位置に配置された前記給電側コイルユニット上面に向けて排出する第１送風ダクトと、を備えたことを特徴とする請求項１又は２に記載の給電装置に存する。 According to a fourth aspect of the present invention, the moving means has a hollow hollow rail for running the power feeding side coil unit, and a first blower fan that blows air into the hollow rail from the standby position side, and the power feeding A first air duct that is provided at a position and discharges air from the hollow rail toward the upper surface of the power supply side coil unit disposed at the power supply position. It exists in the electric power feeding apparatus of description.
　請求項５記載の発明は、車両に搭載された受電側コイルユニットに対して非接触で電力を給電する給電側コイルユニットを備えた給電装置であって、前記給電側コイルユニットに取り付けられ、前記給電側コイルユニット上面を掃く、又は、前記給電側コイルユニット上面に送風して、異物を除去する第２異物除去手段を備えたことを特徴とする給電装置に存する。 The invention according to claim 5 is a power feeding device including a power feeding side coil unit that feeds power in a non-contact manner to a power receiving side coil unit mounted on a vehicle, and is attached to the power feeding side coil unit. The power supply apparatus includes a second foreign matter removing unit that sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove foreign matter.
　請求項６記載の発明は、前記第２異物除去手段が、第２送風ファン及び当該第２送風ファンからの送風を前記給電側コイルユニット上面に向けて排出する上方に突出した第２送風ダクトと、前記給電側コイルユニットの上面を掃くブラシ又はワイパーと、を有し、前記第２送風ダクトとの間に前記給電側コイルユニットを位置付ける上方に突出した凸部と、をさらに備え、前記第２送風ダクト及び凸部の上面に、前記ブラシ又はワイパーを移動させるためのレールが設けられていることを特徴とする請求項５に記載の給電装置に存する。 According to a sixth aspect of the present invention, the second foreign matter removing means includes a second blower duct projecting upward to discharge the second blower fan and the blower from the second blower fan toward the upper surface of the power supply side coil unit; A brush or a wiper that sweeps the upper surface of the power supply side coil unit, and further includes an upward protruding protrusion that positions the power supply side coil unit between the second air duct and the second air duct. The rail for moving the said brush or a wiper is provided in the upper surface of a ventilation duct and a convex part, It exists in the electric power feeder of Claim 5 characterized by the above-mentioned.
　請求項７記載の発明は、請求項１～６の何れか１項に記載の給電装置と、前記受電側コイルユニットが搭載された車両と、を備えた給電システムにおいて、前記車両は、第３送風ファンと、前記第３送風ファンからの送風を前記給電側コイルユニット上面に向けて排出する第３送風ダクトと、を有することを特徴とする給電システムに存する。 According to a seventh aspect of the present invention, there is provided a power feeding system including the power feeding device according to any one of the first to sixth aspects and a vehicle on which the power receiving side coil unit is mounted. The power supply system includes a blower fan, and a third blower duct that discharges air blown from the third blower fan toward the upper surface of the power supply side coil unit.
　以上説明したように請求項１記載の発明によれば、第１異物除去手段が、待機位置と給電位置との間の給電側コイルユニットの移動経路上に設けられ、給電側コイルユニット上面を掃く、または、給電側コイルユニット上面に送風して、異物を除去する。したがって、異物検出センサを設けなくても、異物を除去できる。このため、安価に給電側コイルユニット上面に異物が搭載されたまま充電されることを防止できる。 As described above, according to the first aspect of the present invention, the first foreign matter removing means is provided on the moving path of the power supply side coil unit between the standby position and the power supply position, and sweeps the upper surface of the power supply side coil unit. Or it blows on the upper surface of the power supply side coil unit to remove the foreign matter. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor. For this reason, it can prevent charging with the foreign material mounted on the upper surface of the power supply side coil unit at low cost.
　請求項２記載の発明によれば、給電側コイルユニット自身が移動するため、ブラシ又はワイパーを駆動させるモータも必要もないので、コストダウンを図ることができる。 According to the invention described in claim 2, since the power supply side coil unit itself moves, there is no need for a motor for driving the brush or the wiper, so that the cost can be reduced.
　請求項３記載の発明によれば、第２異物除去手段が、給電側コイルユニットに取り付けられ、給電側コイルユニット上面を掃く、または、給電側コイルユニット上面に送風して、異物を除去する。したがって、第１異物除去手段を通過した後に、異物が載ってもそれを除去することができる。 According to the invention of claim 3, the second foreign matter removing means is attached to the power supply side coil unit and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove the foreign matter. Therefore, even if foreign matter is placed after passing through the first foreign matter removing means, it can be removed.
　請求項４記載の発明によれば、第１送風ファンが、給電側コイルユニットを走行させる中空レール内に送風し、給電位置に設けられた第１送風ダクトが、中空レールからの送風を給電位置に配置された給電側コイルユニット上面に向けて排出する。これにより、中空レールを流用して、安価に、待機位置に設けられた第１送風ファンからの風を給電側コイルユニット上面に送ることができる。 According to invention of Claim 4, a 1st ventilation fan ventilates in the hollow rail which drive | works a power feeding side coil unit, and the 1st ventilation duct provided in the electric power feeding position supplies the ventilation from a hollow rail to an electric power feeding position. It discharges toward the upper surface of the power supply side coil unit arranged in the. Thereby, a hollow rail can be diverted and the wind from the 1st ventilation fan provided in the stand-by position can be sent to the upper surface of an electric power feeding side coil unit cheaply.
　請求項５記載の発明によれば、第２異物除去手段が、給電側コイルユニットに取り付けられ、給電側コイルユニット上面を掃く、又は、給電側コイルユニット上面に送風して、異物を除去する。したがって、異物検出センサを設けなくても、異物を除去できる。 According to the fifth aspect of the present invention, the second foreign matter removing means is attached to the power supply side coil unit and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove the foreign matter. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor.
　請求項６記載の発明によれば、第２送風ダクトの上面にブラシ又はワイパーを移動させるレールを設けることにより、省スペースで、第２送風ファン及び第２送風ダクトと、ブラシ又はワイパーと、の２種類の第２異物除去手段を設けることができる。 According to the sixth aspect of the present invention, by providing a rail for moving the brush or the wiper on the upper surface of the second air duct, the space between the second air fan and the second air duct and the brush or the wiper can be reduced. Two types of second foreign matter removing means can be provided.
　請求項７記載の発明によれば、車両は、第３送風ファンと、第３送風ファンからの送風を給電側コイルユニット上面に向けて排出する第３送風ダクトと、を有する。したがって、異物検出センサを設けなくても、異物を除去できる。 According to the seventh aspect of the present invention, the vehicle includes the third blower fan and the third blower duct that discharges the blown air from the third blower fan toward the upper surface of the power supply side coil unit. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor.
第１実施形態における本発明の給電装置を組み込んだ給電システムを示す回路図である。1 is a circuit diagram showing a power feeding system incorporating a power feeding device of the present invention in a first embodiment. 図１に示す給電装置の斜視図である。It is a perspective view of the electric power feeder shown in FIG. 図２のＩ－Ｉ線断面図である。It is the II sectional view taken on the line of FIG. 図２に示す給電装置の配置を説明するための説明図である。It is explanatory drawing for demonstrating arrangement | positioning of the electric power feeder shown in FIG. 他の実施形態における給電装置の配置を説明するための説明図である。It is explanatory drawing for demonstrating arrangement | positioning of the electric power feeder in other embodiment. 他の実施形態における給電システムを示す図である。It is a figure which shows the electric power feeding system in other embodiment. 第２実施形態における本発明の給電側コイルユニットを組み込んだ給電システムを示す回路図である。It is a circuit diagram which shows the electric power feeding system incorporating the electric power feeding side coil unit of this invention in 2nd Embodiment. 図１に示す給電装置の斜視図である。It is a perspective view of the electric power feeder shown in FIG. 他の実施形態における給電装置を示す図である。It is a figure which shows the electric power feeder in other embodiment. 他の実施形態における給電装置を示す図である。It is a figure which shows the electric power feeder in other embodiment.
（第１実施形態）
　以下、第１実施形態における本発明の給電装置を組み込んだ給電システムについて図１～図４を参照して説明する。図１などに示すように、給電システム１は、車両の駐車場などの給電設備に配置される給電装置２と、受電装置３が搭載された車両１０（図４参照）と、を備えている。 (First embodiment)
Hereinafter, a power supply system incorporating the power supply apparatus of the present invention in the first embodiment will be described with reference to FIGS. As shown in FIG. 1 and the like, the power feeding system 1 includes a power feeding device 2 disposed in a power feeding facility such as a parking lot of the vehicle, and a vehicle 10 (see FIG. 4) on which the power receiving device 3 is mounted. .
　上記給電装置２は、図１に示すように、高周波電力を供給する高周波電源２１と、高周波電源２１からの高周波電力が供給される給電側コイルユニット２２と、共振周波数を調整するための給電側コンデンサＣ１と、整合器２３と、給電装置２全体の制御を司る制御部２４と、備えている。 As shown in FIG. 1, the power supply device 2 includes a high frequency power source 21 that supplies high frequency power, a power supply side coil unit 22 that is supplied with high frequency power from the high frequency power source 21, and a power supply side for adjusting the resonance frequency. The capacitor C1, the matching unit 23, and the control unit 24 that controls the entire power supply apparatus 2 are provided.
　上記高周波電源２１は、高周波電力を生成して、給電側コイルユニット２２に供給している。この高周波電源２１により生成される高周波電力は、後述する給電側共鳴コイル２２Ａ及び受電側共鳴コイル３１Ａの共鳴周波数と等しくなるように設けられている。 The high frequency power source 21 generates high frequency power and supplies it to the power supply side coil unit 22. The high frequency power generated by the high frequency power source 21 is provided so as to be equal to the resonance frequency of a power supply side resonance coil 22A and a power reception side resonance coil 31A described later.
　給電側コイルユニット２２は、高周波電源２１から高周波電力が供給される給電側共鳴コイル２２Ａと、給電側共鳴コイル２２Ａを収容する収容ケース２２Ｂ（図２参照）と、を備えている。 The feeding-side coil unit 22 includes a feeding-side resonance coil 22A to which high-frequency power is supplied from the high-frequency power source 21, and a housing case 22B (see FIG. 2) that houses the feeding-side resonance coil 22A.
　上記給電側コンデンサＣ１は、例えば給電側共鳴コイル２２Ａと直列に接続され、給電側共鳴コイル２２Ａと共に共振回路を形成している。本実施形態では、給電側コンデンサＣ１は、給電側共鳴コイル２２Ａと直列接続しているが、並列接続するようにしてもよい。整合器２３は、高周波電源２１と給電側共鳴コイル２２Ａ及び給電側コンデンサＣ１から成る共振回路と、の間のインピーダンスを整合させるための回路である。 The power supply side capacitor C1 is connected in series with the power supply side resonance coil 22A, for example, and forms a resonance circuit together with the power supply side resonance coil 22A. In the present embodiment, the power supply side capacitor C1 is connected in series with the power supply side resonance coil 22A, but may be connected in parallel. The matching unit 23 is a circuit for matching impedances between the high-frequency power source 21 and the resonance circuit including the feeding-side resonance coil 22A and the feeding-side capacitor C1.
　受電装置３は、図１に示すように、給電側コイルユニット２２から非接触で受電する受電側コイルユニット３１と、共振周波数を調整するための受電側コンデンサＣ２と、受電側コイルユニット３１が受電した高周波電力を直流電力に変換する整流器３２と、整流器３２により変換された直流電力が供給される車載バッテリ３３と、を備えている。 As shown in FIG. 1, the power receiving device 3 includes a power receiving side coil unit 31 that receives power from the power feeding side coil unit 22 in a non-contact manner, a power receiving side capacitor C2 that adjusts the resonance frequency, and a power receiving side coil unit 31 that receives power. A rectifier 32 that converts the high-frequency power into DC power, and an in-vehicle battery 33 to which the DC power converted by the rectifier 32 is supplied.
　受電側コイルユニット３１は、給電側共鳴コイル２２Ａと磁界共鳴する受電側共鳴コイル３１Ａと、受電側共鳴コイル３１Ａを収容する図示しない収容ケースなどを備えている。 The power receiving side coil unit 31 includes a power receiving side resonance coil 31A that magnetically resonates with the power feeding side resonance coil 22A, a housing case (not shown) that houses the power receiving side resonance coil 31A, and the like.
　上記受電側コンデンサＣ２は、図１に示すように、例えば受電側共鳴コイル３１Ａと直列に接続され、受電側共鳴コイル３１Ａと共に共振回路を形成している。本実施形態では、受電側コンデンサＣ２は、受電側共鳴コイル３１Ａと直列接続しているが、並列接続するようにしてもよい。 As shown in FIG. 1, the power receiving side capacitor C2 is connected in series with the power receiving side resonance coil 31A, for example, and forms a resonance circuit together with the power receiving side resonance coil 31A. In the present embodiment, the power receiving side capacitor C2 is connected in series with the power receiving side resonance coil 31A, but may be connected in parallel.
　制御部２４は、ＲＯＭ、ＲＡＭ、ＣＰＵを有する周知のマイクロコンピュータから構成され、高周波電源２１のオンオフなどを制御している。 The control unit 24 includes a well-known microcomputer having a ROM, a RAM, and a CPU, and controls on / off of the high-frequency power source 21.
　上述した給電システム１によれば、車両１０の受電装置３が給電設備の地面に設けた給電装置２に近づいて、給電側共鳴コイル２２Ａと受電側共鳴コイル３１Ａとが対向する。このとき、制御部２４が、高周波電源２１に高周波電力を生成させて、給電側共鳴コイル２２Ａに供給させると、給電側共鳴コイル２２Ａと受電側共鳴コイル３１Ａとが磁界共鳴して、受電側共鳴コイル３１Ａが高周波電力を受電する。受電側共鳴コイル３１Ａで受電された高周波電力は、整流器３２で直流電力に変換されて、車載バッテリ３３に充電される。 According to the power supply system 1 described above, the power reception device 3 of the vehicle 10 approaches the power supply device 2 provided on the ground of the power supply facility, and the power supply resonance coil 22A and the power reception resonance coil 31A face each other. At this time, when the control unit 24 causes the high-frequency power source 21 to generate high-frequency power and supply the high-frequency power to the power-feeding resonance coil 22A, the power-feeding-side resonance coil 22A and the power-receiving-side resonance coil 31A magnetically resonate. The coil 31A receives high frequency power. The high frequency power received by the power receiving side resonance coil 31 </ b> A is converted into direct current power by the rectifier 32 and charged to the in-vehicle battery 33.
　次に、上記給電装置２の詳細な構成について説明する。図２に示すように、給電装置２は、電源ボックスＢ１と、収容ボックスＢ２と、移動手段としての中空レール２５と、ケーブル２６と、第１異物除去手段としてのブラシ２７と、第１送風ファンＦ１（図１）と、第１送風ダクトＤ１と、をさらに備えている。 Next, the detailed configuration of the power feeding device 2 will be described. As shown in FIG. 2, the power supply device 2 includes a power supply box B1, a storage box B2, a hollow rail 25 as a moving means, a cable 26, a brush 27 as a first foreign matter removing means, and a first blower fan. F1 (FIG. 1) and a first air duct D1 are further provided.
　電源ボックスＢ１は、略箱型に形成されていて、内部に高周波電源２１、整合器２３、給電側コンデンサＣ１、制御部２４などを収容している。電源ボックスＢ１は、図４に示すように、コンセントＣから電源供給を受ける関係で、建物の壁際に配置されている。収容ボックスＢ２も、図２に示すように、略箱型に形成され、給電を行わないときに給電側コイルユニット２２が内部に収容される。即ち、この収容ボックスＢ２内が、待機位置となる。本実施形態では、収容ボックスＢ２は、電源ボックスＢ１と一体に設けられている。 The power supply box B1 is formed in a substantially box shape and accommodates a high frequency power supply 21, a matching unit 23, a power supply side capacitor C1, a control unit 24, and the like. As shown in FIG. 4, the power supply box B <b> 1 is disposed near the wall of the building because it receives power from the outlet C. The housing box B2 is also formed in a substantially box shape as shown in FIG. 2, and the power feeding side coil unit 22 is housed inside when the power feeding is not performed. That is, the inside of the storage box B2 is a standby position. In the present embodiment, the storage box B2 is provided integrally with the power supply box B1.
　上記中空レール２５は、待機位置である収容ボックスＢ２と、給電時に配置される給電位置と、の間の地面上に互いに平行に一対設けられている。この中空レール２５は、図３に示すように、中空状に形成されている。本実施形態では、中空レール２５は、地面上に設けられているが、地面に埋設され、上面だけが露出するように設けてもよい。 A pair of the hollow rails 25 are provided in parallel to each other on the ground between the storage box B2 which is a standby position and a power supply position which is arranged at the time of power supply. As shown in FIG. 3, the hollow rail 25 is formed in a hollow shape. In the present embodiment, the hollow rail 25 is provided on the ground, but may be provided so as to be embedded in the ground and to expose only the upper surface.
　上記給電側コイルユニット２２は、図３に示すように、この一対の中空レール２５上を走行するための車輪２２Ｃと、車輪２２Ｃを駆動するモータＭ（図１）と、をさらに有している。これにより、給電側コイルユニット２２は、収容ボックスＢ２と、給電位置との間を移動可能に設けられる。上記モータＭは、制御部２４により、その駆動が制御される。 As shown in FIG. 3, the power supply side coil unit 22 further includes a wheel 22C for traveling on the pair of hollow rails 25 and a motor M (FIG. 1) for driving the wheel 22C. . Thereby, the power feeding side coil unit 22 is provided so as to be movable between the accommodation box B2 and the power feeding position. The driving of the motor M is controlled by the control unit 24.
　上記ケーブル２６は、電源ボックスＢ１と給電側コイルユニット２２間を電気的に接続する。収容ボックスＢ２にはこのケーブル２６を巻き取る図示しない巻取機構が設けられ、上記給電側コイルユニット２２が収容ボックスＢ２内に収容されたときのケーブル２６の余長を巻き取る。 The cable 26 electrically connects the power supply box B1 and the power supply side coil unit 22. The housing box B2 is provided with a winding mechanism (not shown) that winds the cable 26, and winds up the extra length of the cable 26 when the power supply side coil unit 22 is housed in the housing box B2.
　上記収容ボックスＢ２には、図２に示すように、給電位置側に開口した出入口が設けられている。この出入口から給電側コイルユニット２２が収容ボックスＢ２内外に出入りできる。上記ブラシ２７は、この収容ボックスＢ２の出入口上端に設けられている。これにより、ブラシ２７が、出入口から収容ボックスＢ２外に出る際に給電側コイルユニット２２の上面を掃いて、異物を除去するようにしている。 As shown in FIG. 2, the storage box B2 is provided with an entrance opening on the power feeding position side. The feeding side coil unit 22 can enter and exit the storage box B2 from this entrance. The brush 27 is provided at the upper end of the entrance / exit of the storage box B2. Thereby, when the brush 27 goes out of the storage box B2 from the entrance / exit, the upper surface of the power supply side coil unit 22 is swept to remove foreign matters.
　上記第１送風ファンＦ１は、高周波電源２１を冷却するためのファンであり、制御部２４により、その駆動が制御される。電源ボックスＢ１及び収容ボックスＢ２内には、この第１送風ファンＦ１と中空レール２５とを接続する図示しないダクトが設けられている。これにより、第１送風ファンＦ１から中空レール２５内に送風される。 The first blower fan F1 is a fan for cooling the high-frequency power source 21, and its control is controlled by the control unit 24. A duct (not shown) for connecting the first blower fan F1 and the hollow rail 25 is provided in the power supply box B1 and the storage box B2. Thereby, it blows in the hollow rail 25 from the 1st ventilation fan F1.
　上記第１送風ダクトＤ１は、電力伝送に影響を与えない樹脂などで構成されており、給電位置に設けられ、中空レール２５の送風を給電位置に配置された給電側コイルユニット２２の上面に向けて排出する。詳しくは、第１送風ダクトＤ１は、一端が中空レール２５に連結され、他端側の開口が給電側コイルユニット２２の上面に向けて、Ｕ字状に設けられている。また、第１送風ダクトＤ１の幅は、給電側コイルユニット２２の幅とほぼ同じに設けられている。 Said 1st ventilation duct D1 is comprised with resin etc. which do not affect electric power transmission, is provided in the electric power feeding position, and directs the ventilation of the hollow rail 25 to the upper surface of the electric power feeding side coil unit 22 arrange | positioned in the electric power feeding position. To discharge. Specifically, one end of the first air duct D1 is connected to the hollow rail 25, and the opening on the other end side is provided in a U shape toward the upper surface of the power supply side coil unit 22. The width of the first air duct D <b> 1 is provided substantially the same as the width of the power supply side coil unit 22.
　次に、上述した構成の給電システム１の動作について説明する。給電側コイルユニット２２は、給電を行わないときは収容ボックスＢ２内に配置されている。制御部２４は、図４に示すように、図示しないセンサなどにより、受電側コイルユニット３１を搭載した車両１０が駐車スペースに停車したことを検出すると、モータＭを駆動して、収容ボックスＢ２から給電側コイルユニット２２を給電位置に移動させる。 Next, the operation of the power feeding system 1 configured as described above will be described. The power supply side coil unit 22 is arranged in the accommodation box B2 when power is not supplied. As shown in FIG. 4, when the controller 24 detects that the vehicle 10 equipped with the power receiving side coil unit 31 has stopped in the parking space by a sensor (not shown) or the like, the controller 24 drives the motor M to The power supply side coil unit 22 is moved to the power supply position.
　このとき、上記給電側コイルユニット２２が動いて、収容ボックスＢ２の出入口を通過する際に、その上端に設けられたブラシ２７が、給電側コイルユニット２２の上面を掃いて、異物を除去する。 At this time, when the power supply side coil unit 22 moves and passes through the entrance / exit of the storage box B2, the brush 27 provided at the upper end sweeps the upper surface of the power supply side coil unit 22 to remove foreign matter.
　その後、制御部２４は、第１送風ファンＦ１を駆動する。この第１送風ファンＦ１からの風は、中空レール２５及び第１送風ダクトＤ１を通って、給電位置に配置された給電側コイルユニット２２上に送風され、異物を除去できる。 Thereafter, the control unit 24 drives the first blower fan F1. The wind from the first blower fan F1 passes through the hollow rail 25 and the first blower duct D1 and is blown onto the power supply side coil unit 22 arranged at the power supply position, so that foreign matters can be removed.
　その後、制御部２４は、高周波電源２１を制御して、高周波電力を給電側共鳴コイル２２Ａに供給して車両１０に搭載された車載バッテリ３３の充電を行う。車載バッテリ３３の充電が終了すると、制御部２４は、第１送風ファンＦ１の駆動を停止すると共に、モータＭを制御して、給電側コイルユニット２２を給電位置から収容ボックスＢ２に向けて移動させ、収容ボックスＢ２に配置する。 Thereafter, the control unit 24 controls the high frequency power source 21 to supply the high frequency power to the power supply side resonance coil 22 </ b> A to charge the in-vehicle battery 33 mounted on the vehicle 10. When charging of the in-vehicle battery 33 is completed, the control unit 24 stops driving the first blower fan F1 and controls the motor M to move the power supply side coil unit 22 from the power supply position toward the accommodation box B2. In the storage box B2.
　上述した第１実施形態によれば、ブラシ２７が、待機位置と給電位置との間の給電側コイルユニット２２の移動経路上に設けられ、給電側コイルユニット２２上面を掃いて異物を除去する。したがって、異物検出センサを設けなくても、異物を除去できる。このため、安価に給電側コイルユニット２２上面に異物が搭載されたまま充電されることを防止できる。 According to the first embodiment described above, the brush 27 is provided on the movement path of the power supply side coil unit 22 between the standby position and the power supply position, and sweeps the upper surface of the power supply side coil unit 22 to remove foreign substances. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor. For this reason, it can prevent charging with the foreign material mounted on the upper surface of the power supply side coil unit 22 at a low cost.
　上述した第１実施形態によれば、ブラシ２７が給電側コイルユニット２２上面を掃く際に、給電側コイルユニット２２自身が移動するため、ブラシ２７を駆動させるモータも必要もないので、コストダウンを図ることができる。 According to the first embodiment described above, since the power supply side coil unit 22 itself moves when the brush 27 sweeps the upper surface of the power supply side coil unit 22, there is no need for a motor for driving the brush 27. Can be planned.
　また、上述した第１実施形態によれば、第１送風ファンＦ１が、給電側コイルユニット２２を走行させる中空レール２５内に送風し、給電位置に設けられた第１送風ダクトＤ１が、中空レール２５からの送風を給電位置に配置された給電側コイルユニット２２上面に向けて排出する。これにより、中空レール２５を流用して、安価に、待機位置に設けられた第１送風ファンＦ１からの風を給電側コイルユニット２２上面に送ることができる。しかも、給電中に常時、給電側コイルユニット２２上面に風を当てることにより、給電側コイルユニット２２を冷却することもできる。 Moreover, according to 1st Embodiment mentioned above, the 1st ventilation fan F1 ventilates in the hollow rail 25 which runs the electric power feeding side coil unit 22, and the 1st ventilation duct D1 provided in the electric power feeding position is a hollow rail. The air blown from 25 is discharged toward the upper surface of the power supply side coil unit 22 arranged at the power supply position. Thereby, the hollow rail 25 can be diverted and the wind from the 1st ventilation fan F1 provided in the stand-by position can be sent to the upper surface of the electric power feeding side coil unit 22 cheaply. In addition, the power supply side coil unit 22 can be cooled by constantly applying air to the upper surface of the power supply side coil unit 22 during power supply.
　なお、上述した第１実施形態によれば、収容ボックスＢ２は電源ボックスＢ１と一体に設けられていたが、これに限ったものではない。図５に示すように、収容ボックスＢ２と電源ボックスＢ１とを別体に設けてもよい。この場合、収容ボックスＢ２の配置位置に制限がなくなるため、図５に示すように、収容ボックスＢ２を車両１０の停車位置の近くに配置することができる。 In addition, according to 1st Embodiment mentioned above, although storage box B2 was provided integrally with power supply box B1, it is not restricted to this. As shown in FIG. 5, the storage box B2 and the power supply box B1 may be provided separately. In this case, since there is no restriction on the arrangement position of the accommodation box B2, the accommodation box B2 can be arranged near the stop position of the vehicle 10 as shown in FIG.
　また、上述した第１実施形態によれば、ブラシ２７を収容ボックスＢ２の出入口に設けていたが、本発明はこれに限ったものではない。ブラシ２７としては、給電側コイルユニット２２の待機位置と給電位置との移動経路上に設けられていればよく、収容ボックスＢ２とは別に設けられていてもよい。 Further, according to the first embodiment described above, the brush 27 is provided at the entrance / exit of the storage box B2, but the present invention is not limited to this. The brush 27 may be provided on the moving path between the standby position of the power supply side coil unit 22 and the power supply position, and may be provided separately from the storage box B2.
　また、上述した第１実施形態によれば、第１異物除去手段としてブラシ２７を用いていたが、本発明はこれに限ったものではない。ワイパーを用いてもよい。また、送風ファンを設けて、給電側コイルユニット２２上面に送風するようにしてもよい。 Further, according to the first embodiment described above, the brush 27 is used as the first foreign matter removing means, but the present invention is not limited to this. A wiper may be used. Further, a blower fan may be provided to blow air to the upper surface of the power supply side coil unit 22.
　また、上述した第１実施形態によれば、中空レール２５を通過した第１送風ファンＦ１からの風を、給電位置に設けられた第１送風ダクトＤ１から排出することにより、給電側コイルユニット２２上面に送風していたが、これに限ったものではない。この場合、給電位置に第１送風ダクトＤ１が突出してしまうため、車両１０停車の際に支障があった。 Moreover, according to 1st Embodiment mentioned above, the electric power feeding side coil unit 22 is discharged | emitted by discharging | emitting the wind from the 1st ventilation fan F1 which passed the hollow rail 25 from the 1st ventilation duct D1 provided in the electric power feeding position. Although it ventilated to the upper surface, it is not restricted to this. In this case, since the 1st ventilation duct D1 will protrude in an electric power feeding position, when the vehicle 10 stopped, there was a trouble.
　そこで、図６に示すように、車両１０側から送風するようにしてもよい。同図に示すように、車両１０には、第３送風ファンＦ３と、第３送風ファンＦ３からの送風を給電側コイルユニット２２上面に向けて排出する第３送風ダクトＤ３と、を有する。第３送風ファンＦ３としては、例えば車載バッテリ３３の冷却用に設けられたものを流用してもよい。また、第３送風ダクトＤ２には、開閉機構が設けられ、車載ＥＣＵにより、充電時のみ開いて送風できるようになっていてもよい。車載ＥＣＵとしては、バッテリ監視ＥＣＵを流用してもよい。 Therefore, as shown in FIG. 6, the air may be blown from the vehicle 10 side. As shown in the figure, the vehicle 10 includes a third blower fan F3 and a third blower duct D3 that discharges air from the third blower fan F3 toward the upper surface of the power supply side coil unit 22. As the 3rd ventilation fan F3, you may divert what was provided for cooling of the vehicle-mounted battery 33, for example. Further, the third air duct D2 may be provided with an opening / closing mechanism so that the in-vehicle ECU can open and blow air only during charging. A battery monitoring ECU may be used as the in-vehicle ECU.
　これにより、ブラシ２７を通過した後、異物が搭載しても車両１０からの送風によりそれを除去することができる。 Thus, even if a foreign object is mounted after passing through the brush 27, it can be removed by blowing air from the vehicle 10.
（第２実施形態）
　次に、第２実施形態における本発明の給電側コイルユニットを組み込んだ給電システムについて図７及び図８を参照して説明する。なお、同図において、上述した第１実施形態ですでに説明した図１に示す給電システムと同等の部分には同一符号を付してその詳細な説明を省略する。 (Second Embodiment)
Next, a power feeding system incorporating the power feeding side coil unit of the present invention in the second embodiment will be described with reference to FIGS. In the figure, the same parts as those of the power feeding system shown in FIG. 1 already described in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
　第１実施形態と大きく異なる点は、給電装置２の詳細な構成である。第２実施形態における給電装置２の詳細な構成について説明する。図７及び図８に示すように、給電装置２は、電源ボックスＢ１と、ケーブル２５と、第２送風ファンＦ２と、第２送風ファンＦ２からの送風を給電側コイルユニット２２の上面に向かって排出する第２送風ダクトＤ２と、ブラシ２８と、凸部２９と、ブラシ２８を駆動するモータＭ（図１）と、をさらに備えている。上記第２送風ファンＦ２及び第２送風ダクトＤ２と、ブラシ２８と、がそれぞれ請求項中の第２異物除去手段を構成する。 The major difference from the first embodiment is the detailed configuration of the power feeding device 2. A detailed configuration of the power supply device 2 in the second embodiment will be described. As shown in FIGS. 7 and 8, the power supply device 2 is configured to supply air from the power supply box B <b> 1, the cable 25, the second blower fan F <b> 2, and the second blower fan F <b> 2 toward the upper surface of the power supply side coil unit 22. A second air duct D2 for discharging, a brush 28, a convex portion 29, and a motor M (FIG. 1) for driving the brush 28 are further provided. The second blower fan F2 and the second blower duct D2 and the brush 28 constitute second foreign matter removing means in the claims.
　電源ボックスＢ１は、箱型に収容されていて、内部に高周波電源２１、整合器２３、給電側コンデンサＣ１、制御部２４などを収容している。電源ボックスＢ１は、コンセントから電源供給を受ける関係で、建物の壁際に配置されている。上記給電側コイルユニット２２は、駐車場の地面に固定されていて、ケーブル２５は、電源ボックスＢ１と給電側コイルユニット２２とを電気的に接続する。 The power supply box B1 is housed in a box shape, and contains the high-frequency power source 21, the matching unit 23, the power supply side capacitor C1, the control unit 24, and the like. The power supply box B1 is disposed near the wall of the building because it receives power from an outlet. The power supply side coil unit 22 is fixed to the ground of the parking lot, and the cable 25 electrically connects the power supply box B1 and the power supply side coil unit 22.
　上記第２送風ファンＦ２及び第２送風ダクトＤ２と、ブラシ２８と、は給電側コイルユニット２２に取り付けられている。第２送風ファンＦ２は、後述する第２送風ダクトＤ２や収容ケース２２Ｂ内に収容されている。第２送風ダクトＤ２は、その下端が収容ケース２２Ｂに連結するように設けられ、上端が収容ケース２２Ｂよりも突出するように設けられている。 The second blower fan F2 and the second blower duct D2, and the brush 28 are attached to the power supply side coil unit 22. The 2nd ventilation fan F2 is accommodated in the 2nd ventilation duct D2 and the accommodation case 22B which are mentioned later. The 2nd ventilation duct D2 is provided so that the lower end may be connected with storage case 22B, and the upper end is provided so that it may protrude rather than storage case 22B.
　第２送風ダクトＤ２の収容ケース２２Ｂよりも突出した部分の内側面には、排気口Ｅが設けられている。この第２送風ダクトＤ２は、収容ケース２２Ｂの一辺に沿った長尺状に設けられている。よって、第２送風ファンＦ２からの風は、この第２送風ダクトＤ２を通って排気口Ｅから排出されて、給電側コイルユニット２２上面に送られる。 An exhaust port E is provided on the inner surface of the portion of the second air duct D2 that protrudes from the housing case 22B. The second air duct D2 is provided in a long shape along one side of the housing case 22B. Therefore, the wind from the second blower fan F <b> 2 is discharged from the exhaust port E through the second blower duct D <b> 2 and sent to the upper surface of the power supply side coil unit 22.
　ブラシ２８は、収容ケース２２Ｂの第２送風ダクトＤ２が設けられた一辺と直交する一辺に沿って設けられている。凸部２９は、収容ケース２２Ｂの第２送風ダクトＤ２が設けられた一辺と対向する一辺に沿って設けられ、収容ケース２２Ｂよりも上方に突出して設けられている。給電側コイルユニット２２、即ち収容ケース２２Ｂは、第２送風ダクトＤ２と凸部２９との間に位置付けられている。 The brush 28 is provided along one side orthogonal to the one side where the second air duct D2 of the housing case 22B is provided. The convex portion 29 is provided along one side facing the one side where the second air duct D2 of the housing case 22B is provided, and is provided so as to protrude upward from the housing case 22B. The power supply side coil unit 22, that is, the housing case 22 </ b> B is positioned between the second air duct D <b> 2 and the convex portion 29.
　また、この第２送風ダクトＤ２及び凸部２９の上面には、ブラシ２８を移動させるレール２８ａが設けられている。ブラシ２８の両端には、図示しない車輪が設けられ、ブラシ２８はこのレール２８ａ上を走行する。モータＭは、ブラシ２８の図示しない車輪を駆動させてブラシ２８をレール２８ａ上に走行させる。これにより、ブラシ２８が収容ケース２２Ｂの上面を掃いて異物を除去する。 Further, rails 28a for moving the brush 28 are provided on the upper surfaces of the second air duct D2 and the convex portion 29. Wheels (not shown) are provided at both ends of the brush 28, and the brush 28 travels on the rail 28a. The motor M drives a wheel (not shown) of the brush 28 so that the brush 28 travels on the rail 28a. Thereby, the brush 28 sweeps the upper surface of the storage case 22B and removes the foreign matter.
　次に、制御部２４は、図示しないセンサなどにより、受電側コイルユニット３１を搭載した車両１０が駐車場に停車したことを検出すると、モータＭを駆動して、ブラシ２８を駆動して、収容ケース２２Ｂの上面を掃いて、異物を除去する。その後、制御部２４は、第２送風ファンＦ２を駆動して、収容ケース２２Ｂ上面に送風する。さらに、制御部２４は、高周波電源２１を駆動して、高周波電力を給電側共鳴コイル２２Ａに供給して車両１０に搭載された車載バッテリ３３の充電を行う。車載バッテリ３３の充電が終了すると、制御部２４は、第２送風ファンＦ２の駆動を停止させる。 Next, when the control unit 24 detects that the vehicle 10 equipped with the power receiving side coil unit 31 is stopped at the parking lot by a sensor or the like (not shown), the control unit 24 drives the motor M and drives the brush 28 to accommodate the vehicle. The top surface of the case 22B is swept to remove foreign matter. Then, the control part 24 drives the 2nd ventilation fan F2, and ventilates the upper surface of the storage case 22B. Further, the control unit 24 drives the high frequency power source 21 to supply high frequency power to the power supply side resonance coil 22 </ b> A to charge the in-vehicle battery 33 mounted on the vehicle 10. When charging of the in-vehicle battery 33 ends, the control unit 24 stops driving the second blower fan F2.
　上述した第２実施形態によれば、第２送風ファンＦ２、第２送風ダクトＤ２及びブラシ２８が、給電側コイルユニット２２に取り付けられ、給電側コイルユニット２２上面を掃く、又は、給電側コイルユニット２２上面に送風して、異物を除去する。したがって、異物検出センサを設けなくても、異物を除去できる。 According to 2nd Embodiment mentioned above, the 2nd ventilation fan F2, the 2nd ventilation duct D2, and the brush 28 are attached to the electric power feeding side coil unit 22, and sweep the upper surface of the electric power feeding side coil unit 22, or an electric power feeding side coil unit 22 Air is blown to the upper surface to remove foreign matter. Therefore, the foreign matter can be removed without providing the foreign matter detection sensor.
　また、上述した第２実施形態によれば、第２送風ダクトＤ２の上面にブラシ２８を移動させるレールを設けることにより、省スペースで、第２送風ファンＦ２及び第２送風ダクトＤ２と、ブラシ２８と、の２種類の第２異物除去手段を設けることができる。 Moreover, according to 2nd Embodiment mentioned above, by providing the rail which moves the brush 28 on the upper surface of the 2nd ventilation duct D2, the 2nd ventilation fan F2, the 2nd ventilation duct D2, and the brush 28 are space-saving. Two types of second foreign matter removing means can be provided.
　なお、上述した第２実施形態によれば、給電側コイルユニット２２に第２送風ファンＦ２及び第２送風ダクトＤ２を取り付けて、給電側コイルユニット２２上面に送風していたが、これに限ったものではない。例えば、図６に示すように、車両１０側からも送風するようにしてもよい。 In addition, according to 2nd Embodiment mentioned above, although the 2nd ventilation fan F2 and the 2nd ventilation duct D2 were attached to the electric power feeding side coil unit 22, and it ventilated on the upper surface of the electric power feeding side coil unit 22, it was restricted to this. It is not a thing. For example, as shown in FIG. 6, you may make it air also from the vehicle 10 side.
　また、上述した第２実施形態によれば、地面に固定された給電側コイルユニット２２に第２送風ファンＦ２、第２送風ダクトＤ２及びブラシ２８を取り付けていたが、これに限ったものではない。例えば、第１実施形態のように、収容ボックスＢ２内の待機位置と給電位置との間を移動する給電側コイルユニット２２に第２送風ファンＦ２、第２送風ダクトＤ２及びブラシ２８を取り付けるようにしてもよい。この場合、収容ボックスＢ２に配置されたブラシ２７を通過した後に、異物が載ってもそれを除去することができる。 Moreover, according to 2nd Embodiment mentioned above, although the 2nd ventilation fan F2, the 2nd ventilation duct D2, and the brush 28 were attached to the electric power feeding side coil unit 22 fixed to the ground, it is not restricted to this. . For example, as in the first embodiment, the second blower fan F2, the second blower duct D2, and the brush 28 are attached to the power supply side coil unit 22 that moves between the standby position and the power supply position in the storage box B2. May be. In this case, even if a foreign substance is placed after passing through the brush 27 arranged in the storage box B2, it can be removed.
　また、上述した第２実施形態によれば、第２異物除去手段として、第２送風ファンＦ２及び第２送風ダクトＤ２と、ブラシ２８と、の２種類を設けていたが、これに限ったものではない。例えば、図９に示すように、第２送風ファンＦ２及び第２送風ダクトＤ２のみを給電側コイルユニット２２に取り付けてもよい。図９に示す例では、第２送風ダクトＤ２の形状は、Ｕ字状に形成されているが、図８と同様に設けてもよい。 Moreover, according to 2nd Embodiment mentioned above, although 2 types, the 2nd ventilation fan F2 and the 2nd ventilation duct D2, and the brush 28, were provided as a 2nd foreign material removal means, It was restricted to this. is not. For example, as shown in FIG. 9, only the second blower fan F <b> 2 and the second blower duct D <b> 2 may be attached to the power supply side coil unit 22. In the example shown in FIG. 9, the second air duct D <b> 2 is formed in a U shape, but may be provided in the same manner as in FIG. 8.
　また、図１０に示すように、ブラシ２８のみを給電側コイルユニット２２に取り付けても良い。図１０に示す例では、レール２８ａが形成されている部分の高さは、収容ケース２２Ｂと同じに設けているが、図８と同様に、収容ケース２２Ｂよりも突出するように設けてもよい。 Further, as shown in FIG. 10, only the brush 28 may be attached to the power supply side coil unit 22. In the example shown in FIG. 10, the height of the portion where the rail 28 a is formed is provided to be the same as that of the storage case 22 </ b> B, but may be provided so as to protrude from the storage case 22 </ b> B as in FIG. 8. .
　また、上述した実施形態によれば、ブラシ２８を設けていたが、これに限ったものではなく、ブラシ２８の代わりにワイパーを設けるようにしてもよい。 Further, according to the above-described embodiment, the brush 28 is provided. However, the present invention is not limited to this, and a wiper may be provided instead of the brush 28.
　また、前述した実施形態は本発明の代表的な形態を示したに過ぎず、本発明は、実施形態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。 Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.
　１　給電システム
　２　給電装置
　１０　車両
　２２　給電側コイルユニット
　２５　中空レール（移動手段）
　２７　ブラシ（第１異物除去手段）
　２８　ブラシ（第２異物除去手段）
　２８ａ　レール
　２９　凸部
　３１　受電側コイルユニット
　Ｆ１　第１送風ファン
　Ｆ２　第２送風ファン（第２異物除去手段）
　Ｆ３　第３送風ファン
　Ｄ１　第１送風ダクト
　Ｄ２　第２送風ダクト（第２異物除去手段）
　Ｄ３　第３送風ダクト DESCRIPTION OF SYMBOLS 1 Electric power feeding system 2 Electric power feeding apparatus 10 Vehicle 22 Electric power feeding side coil unit 25 Hollow rail (moving means)
27 Brush (first foreign matter removing means)
28 Brush (second foreign matter removing means)
28a Rail 29 Protruding portion 31 Power receiving side coil unit F1 First blower fan F2 Second blower fan (second foreign matter removing means)
F3 3rd ventilation fan D1 1st ventilation duct D2 2nd ventilation duct (2nd foreign material removal means)
D3 Third air duct

Claims (7)

  1. 　車両に搭載された受電側コイルユニットに対して非接触で電力を給電する給電側コイルユニットと、
    　前記給電側コイルユニットを、前記給電を行わないときに配置される待機位置と、前記給電時に配置される給電位置と、の間で移動させる移動手段と、
    　前記待機位置と前記給電位置との間の前記給電側コイルユニットの移動経路上に設けられ、前記給電側コイルユニット上面を掃く、または、前記給電側コイルユニット上面に送風して、異物を除去する第１異物除去手段と、
    　を備えたことを特徴とする給電装置。     A power feeding side coil unit that feeds power in a non-contact manner with respect to a power receiving side coil unit mounted on the vehicle;
    Moving means for moving the power supply coil unit between a standby position arranged when the power supply is not performed and a power supply position arranged at the time of the power supply;
    Provided on the movement path of the power supply side coil unit between the standby position and the power supply position, and sweeps the upper surface of the power supply side coil unit or blows air to the upper surface of the power supply side coil unit to remove foreign matter First foreign matter removing means;
    A power supply apparatus comprising:
  2. 　前記第１異物除去手段が、前記給電側コイルユニット上面を掃くブラシ又はワイパーから構成されている
    　ことを特徴とする請求項１に記載の給電装置。     The power supply apparatus according to claim 1, wherein the first foreign matter removing unit includes a brush or a wiper that sweeps an upper surface of the power supply side coil unit.
  3. 　前記給電側コイルユニットに取り付けられ、前記給電側コイルユニット上面を掃く、または、前記給電側コイルユニット上面に送風して、異物を除去する第２異物除去手段を
    　備えたことを特徴とする請求項１又は２に記載の給電装置。     2. A second foreign matter removing unit that is attached to the power supply side coil unit and sweeps the top surface of the power supply side coil unit or blows air to the top surface of the power supply side coil unit to remove foreign matter. The power feeding device according to 1 or 2.
  4. 　前記移動手段が、前記給電側コイルユニットを走行させる中空状の中空レールを有し、
    　前記待機位置側から前記中空レール内に送風する第１送風ファンと、
    　前記給電位置に設けられ、前記中空レールからの送風を前記給電位置に配置された前記給電側コイルユニット上面に向けて排出する第１送風ダクトと、
    　を備えたことを特徴とする請求項１又は２に記載の給電装置。     The moving means has a hollow hollow rail for running the power supply side coil unit,
    A first blower fan that blows air into the hollow rail from the standby position side;
    A first air duct that is provided at the power feeding position and discharges air from the hollow rail toward the upper surface of the power feeding side coil unit disposed at the power feeding position;
    The power feeding device according to claim 1, wherein the power feeding device is provided.
  5. 　車両に搭載された受電側コイルユニットに対して非接触で電力を給電する給電側コイルユニットを備えた給電装置であって、
    　前記給電側コイルユニットに取り付けられ、前記給電側コイルユニット上面を掃く、又は、前記給電側コイルユニット上面に送風して、異物を除去する第２異物除去手段を備えた
    　ことを特徴とする給電装置。     A power feeding device including a power feeding side coil unit that feeds power in a non-contact manner with respect to a power receiving side coil unit mounted on a vehicle,
    A power supply apparatus, comprising: a second foreign matter removing means attached to the power supply side coil unit, for sweeping the top surface of the power supply side coil unit or blowing air to the top surface of the power supply side coil unit to remove foreign matter. .
  6. 　前記第２異物除去手段が、第２送風ファン及び当該第２送風ファンからの送風を前記給電側コイルユニット上面に向けて排出する上方に突出した第２送風ダクトと、前記給電側コイルユニットの上面を掃くブラシ又はワイパーと、を有し、
    　前記第２送風ダクトとの間に前記給電側コイルユニットを位置付ける上方に突出した凸部と、をさらに備え、
    　前記第２送風ダクト及び凸部の上面に、前記ブラシ又はワイパーを移動させるためのレールが設けられている
    　ことを特徴とする請求項５に記載の給電装置。     The second foreign matter removing means includes a second blower fan and a second blower duct projecting upward to discharge the air blown from the second blower fan toward the upper surface of the power supply side coil unit, and the upper surface of the power supply side coil unit. A brush or wiper for sweeping,
    A convex portion protruding upward that positions the power supply side coil unit between the second air duct and the second air duct,
    The power feeding device according to claim 5, wherein a rail for moving the brush or the wiper is provided on upper surfaces of the second air duct and the convex portion.
  7. 　請求項１～６の何れか１項に記載の給電装置と、
    　前記受電側コイルユニットが搭載された車両と、を備えた給電システムにおいて、
    　前記車両は、第３送風ファンと、前記第３送風ファンからの送風を前記給電側コイルユニット上面に向けて排出する第３送風ダクトと、を有する
    　ことを特徴とする給電システム。     A power feeding device according to any one of claims 1 to 6,
    In a power feeding system comprising a vehicle on which the power receiving side coil unit is mounted,
    The vehicle includes a third blower fan, and a third blower duct that discharges the blown air from the third blower fan toward the upper surface of the power feeding side coil unit.
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