WO2013128600A1 - Dispositif de transmission de puissance - Google Patents

Dispositif de transmission de puissance Download PDF

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Publication number
WO2013128600A1
WO2013128600A1 PCT/JP2012/055125 JP2012055125W WO2013128600A1 WO 2013128600 A1 WO2013128600 A1 WO 2013128600A1 JP 2012055125 W JP2012055125 W JP 2012055125W WO 2013128600 A1 WO2013128600 A1 WO 2013128600A1
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WO
WIPO (PCT)
Prior art keywords
power transmission
power
shielding
state
antenna
Prior art date
Application number
PCT/JP2012/055125
Other languages
English (en)
Japanese (ja)
Inventor
俵木　祐二
Original Assignee
パイオニア株式会社
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
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP2014501900A priority Critical patent/JP5801467B2/ja
Priority to PCT/JP2012/055125 priority patent/WO2013128600A1/fr
Publication of WO2013128600A1 publication Critical patent/WO2013128600A1/fr

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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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • B60L53/30—Constructional details of charging stations
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a technical field of a power transmission device that performs power supply in a non-contact manner, for example, by an electromagnetic resonance method.
  • a power transmission unit for example, a power transmission antenna
  • a power reception unit for example, a power reception antenna
  • a separator for preventing foreign matter from entering a space formed between a power feeding unit (that is, a power transmission unit) and a power receiving unit when power is supplied is embedded in a road surface of a parking space.
  • a power feeding unit that is, a power transmission unit
  • a power receiving unit when power is supplied
  • Patent Document 2 describes that electromagnetic waves leaking to the surroundings are reduced by a radio wave shielding member that surrounds a space between a power transmission antenna and a power reception antenna during an operation period (that is, during power feeding).
  • Patent Document 1 has a technical problem that it is extremely difficult to remove foreign substances adhering to or on the power transmission unit or the power reception unit before power feeding.
  • Patent Literature 2 foreign matter is not considered, but even with the configuration described in Patent Literature 2, it is not possible to remove the foreign matter that is attached or placed on the power transmission unit or the power reception unit before feeding. It is extremely difficult.
  • the present invention has been made in view of the above-described problems, for example, and is capable of suitably removing foreign substances in a space formed between a power transmission unit and a power reception unit while preventing leakage of an electromagnetic field. It is an object to provide an apparatus.
  • a first power transmission device includes a power transmission antenna having a power transmission surface along the ground and facing a power reception surface of a power reception antenna included in the power reception device with a space therebetween, and the power transmission
  • the first state covering the surface and the second state covering the periphery of the power transmission antenna as viewed in plan from above the power transmission antenna can be switched alternately.
  • the power transmission antenna has a power transmission surface along the ground. “Along the ground” is not limited to the fact that the power transmission surface and the ground are parallel to each other, but may include that the power transmission surface is inclined with respect to the ground in a practically acceptable range.
  • the power transmission surface is arranged to face the power receiving surface of the power receiving antenna provided in the power receiving device with a space at the time of power feeding. That is, the first power transmission device is configured to be able to supply power to the power receiving device in a non-contact manner, for example, by an electromagnetic resonance method.
  • the shielding unit alternates between a first state that covers the power transmission surface and a second state that opens the top of the power transmission surface and covers the periphery of the power transmission antenna when viewed from above. Can be switched to. “Opening above the power transmission surface” means a state where there is no shielding portion at least directly above the power transmission surface.
  • the shielding part is typically in the second state during power feeding, and is in the first state except during power feeding. “At the time of power supply” is not limited to a period during which power is actually supplied, and may include a period from a predetermined time before the start of power supply to the start of power supply and a predetermined period after the end of power supply.
  • the shielding part removes foreign matter existing between the power transmitting antenna and the power receiving antenna in the process of switching from the first state to the second state. That is, since the shielding unit switches from the first state that covers the power transmission surface to the second state that does not cover the power transmission surface, between the power transmission antenna and the power receiving antenna (typically, the shielding that covers the power transmission surface) before feeding. The foreign matter existing on the upper part) can be removed.
  • the shielding part is made of a metal such as aluminum, for example, in the second state, as described above, the periphery of the power transmission antenna is covered by the shielding part (that is, the power transmission antenna is surrounded by the shielding part). Therefore, leakage of the electromagnetic field can be prevented.
  • the first power transmission device of the present invention foreign matter in the space formed between the power transmission unit and the power reception unit can be suitably removed while preventing leakage of the electromagnetic field.
  • the shielding part has a plurality of shielding plates, and in the first state, the plate surfaces of the plurality of shielding plates are along the ground, In the second state, the plurality of shielding plates are adjacent to each other, and the plate surfaces of the plurality of shielding plates are along a direction perpendicular to the ground.
  • the first state and the second state can be switched relatively easily, which is very advantageous in practice.
  • the shielding portion in the first state, is composed of two shielding plates and overlaps each other with the first shielding plate pair and the second shielding plate.
  • the two shielding plates constituting the first shielding plate pair and the plate surfaces of the two shielding plates constituting the second shielding plate pair are on the ground.
  • the two shielding plates that are along the vertical direction and that constitute the first shielding plate pair are adjacent to the two shielding plates that constitute the second shielding plate pair.
  • the first state and the second state can be switched relatively easily.
  • the plurality of shielding plates overlap each other in the first state, space saving of the power transmission device can be achieved.
  • the shielding portion includes a plurality of shielding plates configured to be extendable and contractible, and the power receiving device is provided at one end of each of the plurality of shielding plates.
  • a sensor unit for detection is provided, and when switching from the first state to the second state, after the plate surfaces of the plurality of shielding plates are in a state perpendicular to the ground,
  • the image forming apparatus further includes an expansion / contraction control unit that controls each of the plurality of shielding plates such that each of the plurality of shielding plates is extended until a sensor unit provided on each of the plurality of shielding plates detects the power receiving device.
  • the space formed between the power transmission antenna and the power reception antenna can be completely shielded and surrounded from the outside.
  • the shielding unit includes a plurality of shielding plates, and power is supplied from the power transmitting antenna to the power receiving antenna at one end of each of the plurality of shielding plates.
  • an electrode which is set to the ground potential is provided.
  • a second power transmission device of the present invention includes a power receiving antenna that has a power receiving surface that is along the ground and faces the power transmitting surface of the power transmitting antenna included in the power transmitting device with a space therebetween.
  • the first state covering the surface and the second state covering the periphery of the power receiving antenna as viewed in plan from the lower side of the power receiving antenna can be switched alternately.
  • the space in the space formed between the power transmission unit and the power reception unit Foreign matter can be removed suitably.
  • FIG. 1 is a block diagram illustrating a configuration of the power transmission device according to the first embodiment.
  • the power transmission device includes a power transmission device 100 and a power reception device 200.
  • the power transmission device 100 is embedded in a road surface such as a parking space, for example.
  • the power receiving device 200 is mounted on a vehicle 1 such as an electric vehicle.
  • the power transmission device 100 includes a power transmission antenna 101, a power transmission control unit 102, a power transmission drive unit 103, a drive unit 104, and a shield unit 110.
  • the power reception device 200 includes a power reception antenna 201, a power reception control unit 202, a power reception drive / battery charge control unit 203, and an in-vehicle battery 204.
  • the power transmitting antenna 101 and the power receiving antenna 201 are respectively installed so that the power transmitting surface of the power transmitting antenna 101 and the power receiving surface of the power receiving antenna 201 are along the ground.
  • the power transmission surface of the power transmission antenna 101 and the power reception surface of the power reception antenna 201 are arranged to face each other. Note that power transmission between the power transmitting antenna 101 and the power receiving antenna 201 is performed by non-contact power transmission such as an electromagnetic resonance method.
  • the power transmission control unit 102 communicates with the power reception control unit 202 by wireless communication prior to power transmission to the power reception device 200, and performs, for example, authentication of the power reception device 200.
  • the power transmission control unit 102 further controls the power transmission drive unit 103 based on information relating to, for example, a current value, a voltage value, a charging state of the in-vehicle battery 204, and the like during power transmission.
  • the power transmission drive unit 103 supplies power to the power transmission antenna 101 in accordance with an output signal from the power transmission control unit 102.
  • the drive unit 104 drives each of the plurality of shield plates constituting the shield unit 110 in accordance with an output signal from the power transmission control unit 102.
  • FIG. 2 is a conceptual diagram showing the concept of the opening / closing operation of the shield part according to the first embodiment.
  • 2 is a perspective view
  • the right side is a cross-sectional view corresponding to the perspective view.
  • FIG. 3 is a conceptual diagram illustrating an example of a detection method for each of the open state and the closed state of the shield plate according to the first embodiment.
  • the shield part 110 includes shield plates 111, 112, 113 and 114.
  • the shield plates 111 and 112 make a pair.
  • the shield plates 113 and 114 also form a pair.
  • Each of the shield plates 111, 112, 113, and 114 is configured to shield an electromagnetic field.
  • each of the shield plates 111, 112, 113, and 114 is formed of a metal such as aluminum, or is formed by bonding a magnetic material and a metal material to each other.
  • the power transmission surface of the power transmission antenna 101 is covered with the shield plates 111, 112, 113, and 114.
  • the shield plates 111 and 112 and the shield plates 113 and 114 are disposed so as to overlap each other.
  • the shield plates 111, 112, 113, and 114 are erected to open the upper side of the power transmission antenna 101 and the power transmission antenna 101.
  • the periphery of the power transmission antenna 101 is covered with shield plates 111, 112, 113 and 114.
  • the shield plates 111 and 112 are disposed adjacent to the shield plates 113 and 114, respectively.
  • the drive unit 104 When switching the shield unit 110 from the closed state to the open state, the drive unit 104 first sets up the shield plates 111 and 112 respectively (see FIG. 2B). At this time, the drive unit 104 refers to, for example, an output signal from the open state detection sensor (see FIG. 3) and moves the shield plates 111 and 112 until the shield plates 111 and 112 reach predetermined positions, respectively. Control.
  • the drive unit 104 stands the shield plates 113 and 114, respectively, and opens the shield unit 110. At this time, the drive unit 104 controls the shield plates 113 and 114 until each of the shield plates 113 and 114 reaches a predetermined position with reference to, for example, an output signal from the open state detection sensor.
  • the drive unit 104 controls the shield plates 111, 112, 113, and 114, for example, with reference to an output signal from the closed state detection sensor (see FIG. 3).
  • each of the shield plates 111, 112, 113, and 114 is configured to be able to shield the electromagnetic field, so that leakage of the electromagnetic field can be prevented when the shield part 110 is in the open state.
  • Shield plate opening operation processing performed by the power transmission control unit 102 of the power transmission device 100 configured as described above will be described with reference to the flowchart of FIG.
  • the power transmission control unit 102 when detecting a predetermined signal such as a signal indicating a power supply instruction to the power receiving device 200, for example, the power transmission control unit 102 first controls the drive unit 104 to stand the shield plates 111 and 112. (Step S101). Subsequently, the power transmission control unit 102 determines whether or not the opening operation of each of the shield plates 111 and 112 has been completed (step S102).
  • step S102 When it is determined that the opening operation of each of the shield plates 111 and 112 is not completed (step S102: No), the power transmission control unit 102 performs the process of step S102 again. On the other hand, when it is determined that the opening operation of each of the shield plates 111 and 112 is completed (step S102: Yes), the power transmission control unit 102 controls the drive unit 104 so that the shield plates 113 and 114 are erected. (Step S103).
  • step S104 determines whether or not the opening operation of each of the shield plates 113 and 114 has been completed.
  • step S104 determines whether or not the opening operation of each of the shield plates 113 and 114 has been completed.
  • step S104 when it is determined that the opening operation of each of the shield plates 113 and 114 is completed (step S104: Yes), the power transmission control unit 102 ends the shield plate opening operation process.
  • the power transmission control unit 102 when detecting a predetermined signal such as a signal indicating completion of charging, for example, the power transmission control unit 102 first controls the drive unit 104 to accommodate the shield plates 113 and 114 (step S201). Subsequently, the power transmission control unit 102 determines whether or not the closing operation of each of the shield plates 113 and 114 has been completed (step S202).
  • step S202 When it is determined that the closing operation of each of the shield plates 113 and 114 is not completed (step S202: No), the power transmission control unit 102 performs the process of step S202 again. On the other hand, when it is determined that the closing operation of each of the shield plates 113 and 114 has been completed (step S202: Yes), the power transmission control unit 102 controls the drive unit 104 to accommodate the shield plates 111 and 112 ( Step S203).
  • the power transmission control unit 102 determines whether or not the closing operation of each of the shield plates 111 and 112 is completed (step S204). When it is determined that the closing operation of each of the shield plates 111 and 112 has not been completed (step S204: No), the power transmission control unit 102 performs the process of step S204 again.
  • step S204 when it is determined that the closing operation of each of the shield plates 111 and 112 has been completed (step S204: Yes), the power transmission control unit 102 ends the shield plate closing operation process.
  • the “power transmission device 100”, “power transmission control unit 102”, and “shield unit 110” according to the present embodiment are respectively the “first power transmission device”, “control unit”, and “shielding unit” according to the present invention. It is an example.
  • the “shield plates 111, 112, 113, and 114” according to the present embodiment are examples of the “plurality of shield plates” according to the present invention.
  • the “shield plates 111 and 112” and the “shield plates 113 and 114” according to the present embodiment are examples of the “first shield plate pair” and the “second shield plate pair” according to the present invention, respectively.
  • the “closed state of the shield part 110” and the “open state of the shield part 110” according to the present embodiment are examples of the “first state” and the “second state” according to the present invention, respectively.
  • FIG. 6 is a conceptual diagram showing the concept of the opening / closing operation of the shield part according to the modification of the first embodiment having the same meaning as in FIG. 2.
  • the shield part 110 when the shield part 110 is in the closed state, the plurality of shield plates constituting the shield part 110 are arranged so as to overlap each other.
  • the shield plate is erected one by one by the drive part 104 as shown in FIG.
  • FIGS. 1 A second embodiment of the power transmission device of the present invention will be described with reference to FIGS.
  • the second embodiment is the same as the first embodiment except that the configuration of the shield part is partially different. Accordingly, the description of the second embodiment that is the same as that of the first embodiment is omitted, and common portions in the drawings are denoted by the same reference numerals, and only the points that are basically different are shown in FIGS. The description will be given with reference.
  • FIG. 7 is a conceptual diagram showing the configuration of the shield plate according to the second embodiment.
  • the shield plate has a first portion connected to the drive shaft and a second portion having an extended drive gear.
  • the shield 110 is switched from the closed state to the open state, after the shield plate is erected, the second portion of the shield plate is moved along the first portion by the extension drive motor. (See FIG. 7B).
  • the overall length of the shield plate is increased, and the space between the power transmission antenna 101 and the power reception antenna 201 can be enclosed, so that leakage of the electromagnetic field between the power transmission antenna 101 and the power reception antenna 201 can be reliably prevented.
  • a contact detection sensor is attached to the tip of the second portion of the shield plate, and on the condition that the contact detection sensor is in contact with the vehicle bottom 1a, If the extension drive motor is controlled so as to stop the driving of the second portion, the shield plate can be appropriately extended. That is, what is necessary is just to confirm that expansion
  • a contact detection sensor is attached to the lower portion of the first portion of the shield plate, and the contact detection sensor is in contact with the second portion of the shield plate. If the extension drive motor is controlled so as to stop the driving of the second portion of the shield plate, the shield plate can be appropriately contracted. That is, what is necessary is just to confirm that contraction of the shield board was completed by detecting that the contact detection sensor contacted the 2nd part of the shield board.
  • FIG. 8 is a conceptual diagram showing an example of a method for detecting the position of the shield plate according to the second embodiment.
  • the “extension drive motor” according to the present embodiment is an example of the “extension control unit” according to the present invention.
  • the power transmission control unit 102 is ready to charge the vehicle 1 (that is, the power reception device 200) based on the signal transmitted from the power reception control unit 202 of the power reception device 200 mounted on the vehicle 1. It is determined whether or not (step S301). When it is determined that the preparation for charging is not complete (step S301: No), the power transmission control unit 102 performs the process of step S101 again.
  • step S301 when it is determined that the preparation for charging is complete (step S301: Yes), the power transmission control unit 102 performs a shield plate opening operation process (see FIG. 4) (step S1). Next, the power transmission control unit 102 determines whether or not the opening operation of the shield plate is completed (step S302).
  • step S302 When it is determined that the opening operation of the shield plate is not completed (step S302: No), the power transmission control unit 102 performs the process of step S302 again. On the other hand, when it is determined that the opening operation of the shield plate is completed (step S302: Yes), the power transmission control unit 102 controls the extension drive motor to extend the second portion of the shield plate (step S303). .
  • the power transmission control unit 102 determines whether or not the extension of the shield plate has been completed (step S304).
  • the completion of the extension of the shield plate may be confirmed by detecting that the contact detection sensor installed on the upper portion of the second portion of the shield plate has contacted the vehicle bottom 1a as described above.
  • the power transmission control unit 102 performs the process of step S304 again.
  • the power transmission control unit 102 ends the charging preparation process.
  • the power transmission control unit 102 first determines whether or not charging of the in-vehicle battery 204 mounted on the vehicle 1 has been completed (step S401). When it is determined that charging of the in-vehicle battery 204 has not been completed, the power transmission control unit 102 performs the process of step S401 again. On the other hand, when it is determined that charging of the in-vehicle battery 204 has been completed (step S401: Yes), the power transmission control unit 102 controls the extension drive motor to contract the second portion of the shield plate (step S402). .
  • the power transmission control unit 102 determines whether or not the shield plate has been contracted (step S403). Completion of the shrinkage of the shield plate can be confirmed by detecting that the contact detection sensor installed at the lower part of the first portion of the shield plate is in contact with the second portion of the shield plate as described above. Good.
  • the power transmission control unit 102 performs the process of step S403 again.
  • the power transmission control unit 102 performs a shield plate closing operation process (see FIG. 5) (step S2).
  • step S404 determines whether or not the closing operation of the shield plate is completed.
  • step S404: No the power transmission control unit 102 performs the process of step S404 again.
  • step S404: Yes the power transmission control part 102 complete
  • FIG. 11 is a conceptual diagram showing an example of a method for detecting the position of the shield plate according to the first modification of the second embodiment, which has the same concept as in FIG.
  • a pair of photoelectric sensors are attached to the vehicle bottom 1a.
  • the pair of photoelectric sensors is arranged between the pair of photoelectric sensors according to whether light such as infrared light output from one of the pair of photoelectric sensors is detected by the other of the pair of photoelectric sensors. It is possible to determine whether or not the shield has entered. By detecting that the shield has entered between the pair of photoelectric sensors and the optical path has been blocked, it is confirmed that the extension of the shield plate has been completed.
  • a signal indicating that the optical path is blocked is transmitted to the power transmission apparatus 100 via the power reception control unit 202 of the power reception apparatus 200. It is transmitted to the power transmission control unit 102.
  • the power transmission control unit 102 controls the extension drive motor to stop the extension of the shield plate on the condition that the signal indicating that the optical path is blocked is received.
  • FIG. 12 is a conceptual diagram illustrating a configuration of a power transmission device according to a second modification of the second embodiment.
  • a brush-like electrode 116 (see FIG. 12) is formed at one end of the second portion of each shield plate shown in FIG.
  • the power transmission device 100 is configured to further include a contact detection signal source 121 for contact detection and a contact detector 122.
  • the vehicle bottom 1 a of the vehicle 1 is electrically connected to a 0 V (zero volt) terminal of the in-vehicle battery 204.
  • the power transmission control unit 102 first includes the brush electrodes 116, the contact detection signal source 121, and the contact detector 122. Are controlled so that they are electrically connected to each other.
  • the power transmission control unit 102 controls the extension drive motor to extend the shield plate.
  • each brush-like electrode 116 comes into contact with the vehicle bottom 1a, each of the plurality of brush-like electrodes 116 is short-circuited by the vehicle bottom 1a, so that a signal is detected by the contact detector 122.
  • the power transmission control unit 102 controls the extension drive motor to stop the extension of the shield plate on the condition that a signal is detected by the contact detector 122.
  • the power transmission control unit 102 controls the switches SW so that the brush electrodes 116 are at the ground potential. If comprised in this way, since the electric potential of a vehicle body can be made into a grounding potential, the electric shock of the user at the time of charge of the vehicle-mounted battery 204 can be prevented.
  • FIG. 13 is a block diagram showing the configuration of the power transmission device according to the third embodiment having the same concept as in FIG. 1.
  • the power transmission device 100 includes a power transmission antenna 101, a power transmission control unit 102, and a power transmission drive unit 103.
  • the power receiving device 200 as an example of the “second power transmission device” according to the present invention mounted on the vehicle 2 includes a power receiving antenna 201, a power receiving control unit 202, a power receiving drive / battery charging control unit 203, an on-vehicle unit.
  • the battery 204 and the shield part 210 are provided.
  • the power transmission device of the present invention is used as a charging device for a battery mounted on a vehicle such as an electric vehicle is taken as an example, but the power transmission device of the present invention is, for example, It can also be applied as a charging device such as a battery mounted on an audio-visual device or a home appliance.

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

Abstract

Dispositif de transmission de puissance (100) comprenant : une antenne de transmission de puissance (101) ayant une surface de transmission de puissance qui se trouve le long du sol et fait face, sur un espace, à une surface de réception de puissance d'une antenne de réception de puissance (201) située dans un dispositif de réception de puissance (200) ; et une section de blindage (110) pouvant alterner entre un premier état dans lequel la surface de transmission de puissance est recouverte, et un second état dans lequel la section supérieure de la surface de transmission de puissance est ouverte, et la périphérie de l'antenne de transmission de puissance est recouverte lorsqu'on l'observe dans un plan depuis le dessus de l'antenne de transmission de puissance. La section de blindage retire également les corps étrangers présents entre l'antenne de transmission de puissance et l'antenne de réception de puissance, pendant le processus de passage du premier état au second état.
PCT/JP2012/055125 2012-02-29 2012-02-29 Dispositif de transmission de puissance WO2013128600A1 (fr)

Priority Applications (2)

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JP2014501900A JP5801467B2 (ja) 2012-02-29 2012-02-29 電力伝送装置
PCT/JP2012/055125 WO2013128600A1 (fr) 2012-02-29 2012-02-29 Dispositif de transmission de puissance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/055125 WO2013128600A1 (fr) 2012-02-29 2012-02-29 Dispositif de transmission de puissance

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WO2013128600A1 true WO2013128600A1 (fr) 2013-09-06

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JP (1) JP5801467B2 (fr)
WO (1) WO2013128600A1 (fr)

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JP2016226073A (ja) * 2015-05-27 2016-12-28 Tdk株式会社 ワイヤレス電力伝送システム
EP2879267A4 (fr) * 2012-07-26 2017-03-15 IHI Corporation Système d'alimentation en énergie sans contact
JP2018038110A (ja) * 2016-08-29 2018-03-08 日本無線株式会社 異物介在防止装置
JP2018038111A (ja) * 2016-08-29 2018-03-08 日本無線株式会社 電力伝送中継装置
JP7245735B2 (ja) 2019-06-28 2023-03-24 株式会社ダイヘン 送電装置及び送電システム

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CN117162818A (zh) * 2018-10-17 2023-12-05 合芯磁导科技(无锡)有限公司 电动汽车无线充电发射器用伸缩式安全防护栏

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JP2005255144A (ja) * 2004-02-14 2005-09-22 Kazumichi Fujioka 地面給電装置
JP2005269687A (ja) * 2004-03-16 2005-09-29 Mitsui Eng & Shipbuild Co Ltd 車両用非接触充電装置
JP2008054424A (ja) * 2006-08-24 2008-03-06 Mitsubishi Heavy Ind Ltd 受電装置及び送電装置並びに車両

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JP2000139030A (ja) * 1998-11-02 2000-05-16 Yasumasa Akazawa 車両用充電装置
JP5606098B2 (ja) * 2009-02-25 2014-10-15 マスプロ電工株式会社 移動体の電力供給システム

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JP2005255144A (ja) * 2004-02-14 2005-09-22 Kazumichi Fujioka 地面給電装置
JP2005269687A (ja) * 2004-03-16 2005-09-29 Mitsui Eng & Shipbuild Co Ltd 車両用非接触充電装置
JP2008054424A (ja) * 2006-08-24 2008-03-06 Mitsubishi Heavy Ind Ltd 受電装置及び送電装置並びに車両

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2879267A4 (fr) * 2012-07-26 2017-03-15 IHI Corporation Système d'alimentation en énergie sans contact
US9800092B2 (en) 2012-07-26 2017-10-24 Ihi Corporation Wireless power-supplying system
JP2016226073A (ja) * 2015-05-27 2016-12-28 Tdk株式会社 ワイヤレス電力伝送システム
JP2018038110A (ja) * 2016-08-29 2018-03-08 日本無線株式会社 異物介在防止装置
JP2018038111A (ja) * 2016-08-29 2018-03-08 日本無線株式会社 電力伝送中継装置
JP7245735B2 (ja) 2019-06-28 2023-03-24 株式会社ダイヘン 送電装置及び送電システム

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