JPWO2013128600A1 - Power transmission equipment - Google Patents

Power transmission equipment Download PDF

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JPWO2013128600A1
JPWO2013128600A1 JP2014501900A JP2014501900A JPWO2013128600A1 JP WO2013128600 A1 JPWO2013128600 A1 JP WO2013128600A1 JP 2014501900 A JP2014501900 A JP 2014501900A JP 2014501900 A JP2014501900 A JP 2014501900A JP WO2013128600 A1 JPWO2013128600 A1 JP WO2013128600A1
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power transmission
power
shielding
state
antenna
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JP5801467B2 (en
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俵木　祐二
祐二 俵木
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Pioneer Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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

Abstract

電力伝送装置（１００）は、地面に沿うと共に、受電装置（２００）が備える受電アンテナ（２０１）の受電面と空間を隔てて対向する送電面を有する送電アンテナ（１０１）と、該送電面を覆う第１の状態と、該送電面の上方を開放すると共に、該送電アンテナの上方から平面的に見て、該送電アンテナの周囲を覆う第２の状態と、を交互に切り換え可能であり、第１の状態から第２の状態へ切り換わる過程において、送電アンテナ及び受電アンテナ間に存在する異物を除去する遮蔽部（１１０）と、を備える。The power transmission device (100) includes a power transmission antenna (101) that has a power transmission surface along the ground and facing the power reception surface of the power reception antenna (201) included in the power reception device (200) with a space therebetween, and the power transmission surface. It is possible to alternately switch between a first state covering and a second state covering the periphery of the power transmission antenna as viewed in plan from above the power transmission antenna while opening the power transmission surface above. In the process of switching from the first state to the second state, a shielding unit (110) for removing foreign matter existing between the power transmitting antenna and the power receiving antenna is provided.

Description

本発明は、例えば電磁界共鳴方式等により、電力供給を非接触で行う電力伝送装置の技術分野に関する。   The present invention relates to a technical field of a power transmission device that performs power supply in a contactless manner, for example, by an electromagnetic resonance method.

この種の装置では、非接触であるが故に、送電部（例えば、送電アンテナ）と、受電部（例えば、受電アンテナ）とが間隙を隔てて対向している。すると、該間隙に、例えば、空缶等の金属や、猫等の小動物、等の異物が侵入するおそれがある。このため、この種の装置では、異物の侵入の防止が図られる。   In this type of device, since it is non-contact, a power transmission unit (for example, a power transmission antenna) and a power reception unit (for example, a power reception antenna) face each other with a gap. Then, for example, a foreign object such as a metal such as an empty can or a small animal such as a cat may enter the gap. For this reason, in this type of apparatus, the intrusion of foreign matters can be prevented.

例えば特許文献１には、給電する際に給電部（即ち、送電部）及び受電部間に形成される空間内に異物が侵入することを防止するための隔離材を、駐車スペースの路面に埋設又は車両内部に収納し、給電時に該隔離材を該空間内に突出させることが記載されている。   For example, in Patent Document 1, 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. Alternatively, it is described that it is housed inside a vehicle and the separator protrudes into the space during power feeding.

また、この種の装置では、送電部と受電部との間の空間から、例えば電磁界（電磁波）等が周囲へ漏洩するおそれがある。このため、この種の装置では、電磁界等の漏洩を抑制し、周囲への影響の低減も図られる。   In this type of device, for example, an electromagnetic field (electromagnetic wave) may leak to the surroundings from the space between the power transmission unit and the power reception unit. For this reason, in this type of apparatus, leakage of an electromagnetic field or the like is suppressed, and the influence on the surroundings can be reduced.

例えば特許文献２には、作動期間（即ち、給電時）に、送電アンテナと受電アンテナとの間の空間を取り囲む電波遮蔽部材により、周囲へ漏れ出す電磁波を低減することが記載されている。   For example, 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).

特開２０１０−２２６９４６号公報JP 2010-226946 A 特開２００８−５４４２４号公報JP 2008-54424 A

しかしながら、特許文献１に記載の技術では、給電前に送電部上又は受電部上に、付着している又は載っている異物を除去することが極めて困難であるという技術的問題点がある。特許文献２では、異物については考慮されていないが、該特許文献２に記載の構成でも、給電前に送電部上又は受電部上に、付着している又は載っている異物を除去することは極めて困難である。   However, the technique described in Patent Document 1 has a technical problem that it is extremely difficult to remove foreign matter adhering to or on the power transmission unit or the power reception unit before feeding. In 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.

本発明は、例えば上記問題点に鑑みてなされたものであり、電磁界の漏洩を防止しつつ、送電部及び受電部間に形成される空間内の異物を好適に除去することができる電力伝送装置を提供することを課題とする。   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.

本発明の第１の電力伝送装置は、上記課題を解決するために、地面に沿うと共に、受電装置が備える受電アンテナの受電面と空間を隔てて対向する送電面を有する送電アンテナと、前記送電面を覆う第１の状態と、前記送電面の上方を開放すると共に、前記送電アンテナの上方から平面的に見て、前記送電アンテナの周囲を覆う第２の状態と、を交互に切り換え可能であり、前記第１の状態から前記第２の状態へ切り換わる過程において、前記送電アンテナ及び前記受電アンテナ間に存在する異物を除去する遮蔽部と、を備える。   In order to solve the above-described problem, a first power transmission device according to the present invention 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. And a shielding part for removing 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.

本発明の第１の電力伝送装置によれば、送電アンテナは、地面に沿う送電面を有している。「地面に沿う」とは、送電面と地面とが平行であることに限らず、送電面が地面に対して実践上許容可能な範囲で傾いていることも含んでよい。   According to the first power transmission device of the present invention, 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.

送電面は、給電時には、受電装置が備える受電アンテナの受電面と空間を隔てて対向して配置される。つまり、当該第１の電力伝送装置は、例えば電磁界共鳴方式等により、受電装置に対して非接触で電力を供給可能に構成されている。   The power transmission surface is arranged to face the power receiving surface of the power receiving antenna included in the power receiving device with a space therebetween during 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.

遮蔽部は、送電面を覆う第１の状態と、該送電面の上方を開放すると共に、送電アンテナの上方から平面的に見て、該送電アンテナの周囲を覆う第２の状態と、を交互に切り換え可能である。「送電面の上方を開放」とは、少なくとも送電面の真上に遮蔽部が存在しない状態を意味する。   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.

尚、遮蔽部は、典型的には、給電時には第２の状態になっており、給電時以外は第１の状態になっている。「給電時」は、実際に給電が行われている期間に限らず、給電開始から所定時間前から給電開始までの期間、及び、給電終了後の所定期間も含んでよい。   In addition, 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.

本発明では特に、遮蔽部は、第１の状態から第２の状態へ切り換わる過程において、送電アンテナ及び受電アンテナ間に存在する異物を除去する。つまり、遮蔽部が、送電面を覆う第１の状態から、送電面を覆わない第２の状態へ切り換わるので、給電前から送電アンテナ及び受電アンテナ間（典型的には、送電面を覆う遮蔽部の上）に存在する異物を除去することができる。   Particularly in the present invention, 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.

加えて、遮蔽部を、例えばアルミニウム等の金属により構成すれば、第２の状態では、上述の如く、送電アンテナの周囲が遮蔽部により覆われている（つまり、送電アンテナが遮蔽部により包囲されている）ので、電磁界の漏洩を防止することができる。   In addition, if 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.

以上の結果、本発明の第１の電力伝送装置によれば、電磁界の漏洩を防止しつつ、送電部及び受電部間に形成される空間内の異物を好適に除去することができる。   As a result, according to the first power transmission device of the present invention, it is possible to suitably remove foreign matters in the space formed between the power transmission unit and the power reception unit while preventing leakage of the electromagnetic field.

本発明の第１の電力伝送装置の一態様では、前記遮蔽部は、複数の遮蔽板を有し、前記第１の状態において、前記複数の遮蔽板各々の板面は地面に沿っており、前記第２の状態において、前記複数の遮蔽板は互いに隣接しており、且つ前記複数の遮蔽板各々の板面は地面に垂直な方向に沿っている。   In one aspect of the first power transmission device of the present invention, 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.

この態様によれば、比較的容易にして、第１の状態と第２の状態とを切り換えることができ、実践上非常に有利である。   According to this aspect, the first state and the second state can be switched relatively easily, which is very advantageous in practice.

或いは、本発明の第１の電力伝送装置の他の態様では、前記遮蔽部は、前記第１の状態において、夫々２枚の遮蔽板からなると共に互いに重なる第１遮蔽板対及び第２遮蔽板対を有し、前記第２の状態において、前記第１遮蔽板対を構成する２枚の遮蔽板、及び前記第２遮蔽板対を構成する２枚の遮蔽板各々の板面は、地面に垂直な方向に沿っており、且つ、前記第１遮蔽板対を構成する２枚の遮蔽板各々は、前記第２遮蔽板対を構成する２枚の遮蔽板に隣接している。   Alternatively, in another aspect of the first power transmission device of the present invention, in the first state, the shielding portion is composed of two shielding plates and overlaps each other with the first shielding plate pair and the second shielding plate. In the second state, 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.

この態様によれば、比較的容易にして、第１の状態と第２の状態とを切り換えることができる。加えて、第１の状態において複数の遮蔽板が互いに重なっているので、当該電力伝送装置の省スペース化を図ることができる。   According to this aspect, the first state and the second state can be switched relatively easily. In addition, since the plurality of shielding plates overlap each other in the first state, space saving of the power transmission device can be achieved.

本発明の第１の電力伝送装置の他の態様では、前記遮蔽部は、夫々伸縮可能に構成された複数の遮蔽板を有し、前記複数の遮蔽板各々の一端には、前記受電装置を検知するセンサ部が設けられており、前記第１の状態から前記第２の状態へ切り換わる際に、前記複数の遮蔽板各々の板面が地面に垂直な方向に沿う状態になった後、前記複数の遮蔽板各々に設けられたセンサ部が前記受電装置を検知するまで、前記複数の遮蔽板各々が伸長されるように、前記複数の遮蔽板を夫々制御する伸縮制御部を更に備える。   In another aspect of the first power transmission device of the present invention, 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.

この態様によれば、送電アンテナ及び受電アンテナ間に形成される空間を完全に外界から遮蔽し包囲することができる。   According to this aspect, the space formed between the power transmission antenna and the power reception antenna can be completely shielded and surrounded from the outside.

本発明の第１の電力伝送装置の他の態様では、前記遮蔽部は、複数の遮蔽板を有し、前記複数の遮蔽板各々の一端には、前記送電アンテナから前記受電アンテナへ電力が供給される際に接地電位とされる電極が設けられている。   In another aspect of the first power transmission device of the present invention, 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. In this case, an electrode which is set to the ground potential is provided.

この態様によれば、送電アンテナ及び受電アンテナ間に電位差が生じることを防止することができる。従って、ユーザが感電することを防止することができ、実用上非常に有利である。   According to this aspect, it is possible to prevent a potential difference from occurring between the power transmission antenna and the power reception antenna. Therefore, the user can be prevented from receiving an electric shock, which is very advantageous in practice.

本発明の第２の電力伝送装置は、上記課題を解決するために、地面に沿うと共に、送電装置が備える送電アンテナの送電面と空間を隔てて対向する受電面を有する受電アンテナと、前記受電面を覆う第１の状態と、前記受電面の下方を開放すると共に、前記受電アンテナの下方から平面的に見て、前記受電アンテナの周囲を覆う第２の状態と、を交互に切り換え可能であり、前記第１の状態から前記第２の状態へ切り換わる過程において、前記送電アンテナ及び前記受電アンテナ間に存在する異物を除去する遮蔽部と、を備える。   In order to solve the above-described problem, 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. And a shielding part for removing 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.

本発明の第２の電力伝送装置によれば、上述した本発明の第１の電力伝送装置と同様に、電磁界の漏洩を防止しつつ、送電部及び受電部間に形成される空間内の異物を好適に除去することができる。   According to the second power transmission device of the present invention, in the same manner as the first power transmission device of the present invention described above, while preventing leakage of the electromagnetic field, the space in the space formed between the power transmission unit and the power reception unit Foreign matter can be removed suitably.

尚、本発明の第２の電力伝送装置においても、上述した本発明の第１の電力伝送装置の各種態様と同様の各種態様を採ることができる。   In the second power transmission device of the present invention, various aspects similar to the various aspects of the first power transmission device of the present invention described above can be adopted.

本発明の作用及び他の利得は次に説明する実施するための形態から明らかにされる。   The effect | action and other gain of this invention are clarified from the form for implementing demonstrated below.

第１実施形態に係る電力伝送装置の構成を示すブロック図である。It is a block diagram which shows the structure of the electric power transmission apparatus which concerns on 1st Embodiment. 第１実施形態に係るシールド部の開閉動作の概念を示す概念図である。It is a conceptual diagram which shows the concept of the opening / closing operation | movement of the shield part which concerns on 1st Embodiment. 第１実施形態に係るシールド板の開状態及び閉状態各々の検出方法の一例を示す概念図である。It is a conceptual diagram which shows an example of the detection method of each of the open state and closed state of the shield board which concerns on 1st Embodiment. 第１実施形態に係るシールド板開動作処理を示すフローチャートである。It is a flowchart which shows the shield board opening operation | movement process which concerns on 1st Embodiment. 第１実施形態に係るシールド板閉動作処理を示すフローチャートである。It is a flowchart which shows the shield board closing operation process which concerns on 1st Embodiment. 第１実施形態の変形例に係るシールド部の開閉動作の概念を示す概念図である。It is a conceptual diagram which shows the concept of the opening / closing operation | movement of the shield part which concerns on the modification of 1st Embodiment. 第２実施形態に係るシールド板の構成を示す概念図である。It is a conceptual diagram which shows the structure of the shield board which concerns on 2nd Embodiment. 第２実施形態に係るシールド板の位置の検出方法の一例を示す概念図である。It is a conceptual diagram which shows an example of the detection method of the position of the shield board which concerns on 2nd Embodiment. 第２実施形態に係る充電準備処理を示すフローチャートである。It is a flowchart which shows the charge preparation process which concerns on 2nd Embodiment. 第２実施形態に係る充電後処理を示すフローチャートである。It is a flowchart which shows the post-charge process which concerns on 2nd Embodiment. 第２実施形態の第１変形例に係るシールド板の位置の検出方法の一例を示す概念図である。It is a conceptual diagram which shows an example of the detection method of the position of the shield board which concerns on the 1st modification of 2nd Embodiment. 第２実施形態の第２変形例に係る電力伝送装置の構成を示す概念図である。It is a conceptual diagram which shows the structure of the electric power transmission apparatus which concerns on the 2nd modification of 2nd Embodiment. 第３実施形態に係る電力伝送装置の構成を示すブロック図である。It is a block diagram which shows the structure of the electric power transmission apparatus which concerns on 3rd Embodiment.

以下、本発明の電力伝送装置に係る実施形態を、図面に基づいて説明する。   Hereinafter, embodiments according to the power transmission device of the present invention will be described with reference to the drawings.

＜第１実施形態＞
本発明の電力伝送装置に係る第１実施形態について、図１乃至図５を参照して説明する。<First Embodiment>
1st Embodiment which concerns on the power transmission apparatus of this invention is described with reference to FIG. 1 thru | or FIG.

本実施形態に係る電力伝送装置の構成について、図１を参照して説明する。図１は、第１実施形態に係る電力伝送装置の構成を示すブロック図である。   The configuration of the power transmission device according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of the power transmission device according to the first embodiment.

図１において、電力伝送装置は、送電装置１００と受電装置２００とを備えて構成されている。送電装置１００は、例えば駐車スペース等の路面に埋設されている。他方、受電装置２００は、例えば電気自動車等の車両１に搭載されている。   In FIG. 1, 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. On the other hand, the power receiving device 200 is mounted on a vehicle 1 such as an electric vehicle.

送電装置１００は、送電アンテナ１０１、送電制御部１０２、送電駆動部１０３、駆動部１０４及びシールド部１１０を備えて構成されている。他方、受電装置２００は、受電アンテナ２０１、受電制御部２０２、受電駆動・バッテリ充電制御部２０３及び車載バッテリ２０４を備えて構成されている。   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. On the other hand, 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.

送電アンテナ１０１の送電面、及び受電アンテナ２０１の受電面各々が、地面に沿うように、送電アンテナ１０１及び受電アンテナ２０１は夫々設置されている。送電アンテナ１０１から受電アンテナ２０１へ電力が伝送される際には、送電アンテナ１０１の送電面及び受電アンテナ２０１の受電面が互いに対向するように配置される。尚、送電アンテナ１０１及び受電アンテナ２０１間における電力伝送は、例えば電磁界共鳴方式等の非接触電力伝送により実施される。   The power transmitting antenna 101 and the power receiving antenna 201 are respectively installed such 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. When power is transmitted from the power transmission antenna 101 to the power reception antenna 201, 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.

送電制御部１０２は、受電装置２００への電力伝送に先立ち、受電制御部２０２と無線通信により通信し、例えば受電装置２００の認証等を実施する。送電制御部１０２は、更に、電力伝送時には、例えば電流値、電圧値、車載バッテリ２０４の充電状態等に係る情報に基づいて、送電駆動部１０３を制御する。   Prior to power transmission to the power receiving device 200, the power transmission control unit 102 communicates with the power receiving control unit 202 by wireless communication, and performs authentication of the power receiving device 200, for example. 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.

送電駆動部１０３は、送電制御部１０２からの出力信号に応じて、送電アンテナ１０１に対して電力を供給する。駆動部１０４は、送電制御部１０２からの出力信号に応じて、シールド部１１０を構成する複数のシールド板各々を駆動する。   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.

次に、シールド部１１０について、図２及び図３を参照して説明する。図２は、第１実施形態に係るシールド部の開閉動作の概念を示す概念図である。尚、図２の左側は、斜視図であり、右側は、該斜視図に対応する断面図である。図３は、第１実施形態に係るシールド板の開状態及び閉状態各々の検出方法の一例を示す概念図である。   Next, the shield part 110 is demonstrated with reference to FIG.2 and FIG.3. 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, and 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.

図２に示すように、シールド部１１０は、シールド板１１１、１１２、１１３及び１１４を有している。シールド板１１１及び１１２は、対をなしている。同様に、シールド板１１３及び１１４も、対をなしている。   As shown in FIG. 2, the shield part 110 has shield plates 111, 112, 113 and 114. The shield plates 111 and 112 make a pair. Similarly, the shield plates 113 and 114 also form a pair.

シールド板１１１、１１２、１１３及び１１４各々は、電磁界を遮蔽可能に構成されている。具体的には例えば、シールド板１１１、１１２、１１３及び１１４各々は、アルミニウム等の金属により形成されている、或いは、磁性体と金属材料とが互いに貼り合わされて形成されている。   Each of the shield plates 111, 112, 113, and 114 is configured to shield an electromagnetic field. Specifically, for example, 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.

シールド部１１０の閉状態（図２（ａ）参照）では、シールド板１１１、１１２、１１３及び１１４により、送電アンテナ１０１の送電面が覆われている。この時、シールド板１１１及び１１２と、シールド板１１３及び１１４とは、互いに重なるように配置される。   In the closed state of the shield part 110 (see FIG. 2A), the power transmission surface of the power transmission antenna 101 is covered with the shield plates 111, 112, 113, and 114. At this time, the shield plates 111 and 112 and the shield plates 113 and 114 are disposed so as to overlap each other.

他方、シールド部１１０の開状態（図２（ｃ）参照）では、シールド板１１１、１１２、１１３及び１１４各々が立設することにより、送電アンテナ１０１の上方が開放されると共に、該送電アンテナ１０１の上方から平面的に見て、該送電アンテナ１０１の周囲が、シールド板１１１、１１２、１１３及び１１４により覆われる。この時、シールド板１１１及び１１２は、夫々、シールド板１１３及び１１４と互いに隣接するように配置される。   On the other hand, in the open state of the shield part 110 (see FIG. 2C), 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. When viewed from above, the periphery of the power transmission antenna 101 is covered with shield plates 111, 112, 113 and 114. At this time, the shield plates 111 and 112 are disposed adjacent to the shield plates 113 and 114, respectively.

シールド部１１０を閉状態から開状態に切り換える際、駆動部１０４は、先ず、シールド板１１１及び１１２を夫々立設する（図２（ｂ）参照）。この際、駆動部１０４は、例えば開状態検出センサ（図３参照）からの出力信号を参照して、シールド板１１１及び１１２各々が、所定の位置に到達するまで、シールド板１１１及び１１２を夫々制御する。   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.

続いて、駆動部１０４は、シールド板１１３及び１１４を夫々立設し、シールド部１１０を開状態とする。この際、駆動部１０４は、例えば開状態検出センサからの出力信号を参照して、シールド板１１３及び１１４各々が、所定の位置に到達するまで、シールド板１１３及び１１４を夫々制御する。   Subsequently, the drive unit 104 erects the shield plates 113 and 114 to open 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.

尚、シールド部１１０を開状態から閉状態に切り換える際は、上述の処理を逆順に行えばよい。この場合、駆動部１０４は、例えば閉状態検出センサ（図３参照）からの出力信号を参照して、シールド板１１１、１１２、１１３及び１１４を夫々制御する。   Note that when the shield unit 110 is switched from the open state to the closed state, the above-described processing may be performed in the reverse order. In this case, 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).

ここで、シールド部１１０が閉状態から開状態に切り換えられる際、図２（ｂ）に示すように、シールド板１１１及び１１２が立設されるので、電力伝送前に、送電アンテナ１０１及び受電アンテナ２０１間に形成される空間に存在する異物を除去することができる。加えて、上述の如く、シールド板１１１、１１２、１１３及び１１４各々は、電磁界を遮蔽可能に構成されているので、シールド部１１０の開状態では、電磁界の漏洩を防止することができる。   Here, when the shield part 110 is switched from the closed state to the open state, as shown in FIG. 2B, the shield plates 111 and 112 are erected, so that the power transmitting antenna 101 and the power receiving antenna are placed before power transmission. Foreign matter present in the space formed between the 201 can be removed. In addition, as described above, 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.

上述の如く構成された送電装置１００の送電制御部１０２が実施するシールド板開動作処理について、図４のフローチャートを参照して説明する。   The shield plate opening operation process 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.

図４において、送電制御部１０２は、例えば受電装置２００への電力供給指示を示す信号等の所定信号を検出した場合、先ず、シールド板１１１及び１１２を立設するように、駆動部１０４を制御する（ステップＳ１０１）。続いて、送電制御部１０２は、シールド板１１１及び１１２各々の開動作が完了したか否かを判定する（ステップＳ１０２）。   In FIG. 4, 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).

シールド板１１１及び１１２各々の開動作が完了していないと判定された場合（ステップＳ１０２：Ｎｏ）、送電制御部１０２は、ステップＳ１０２の処理を再び実施する。他方、シールド板１１１及び１１２各々の開動作が完了したと判定された場合（ステップＳ１０２：Ｙｅｓ）、送電制御部１０２は、シールド板１１３及び１１４を立設するように、駆動部１０４を制御する（ステップＳ１０３）。   When it is determined that the opening operation of each of the shield plates 111 and 112 has not been 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).

続いて、送電制御部１０２は、シールド板１１３及び１１４各々の開動作が完了した否かを判定する（ステップＳ１０４）。シールド板１１３及び１１４各々の開動作が完了していないと判定された場合（ステップＳ１０４：Ｎｏ）、送電制御部１０２は、ステップＳ１０４の処理を再び実施する。   Subsequently, the power transmission control unit 102 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 not completed (step S104: No), the power transmission control unit 102 performs the process of step S104 again.

他方、シールド板１１３及び１１４各々の開動作が完了したと判定された場合（ステップＳ１０４：Ｙｅｓ）、送電制御部１０２は、シールド板開動作処理を終了する。   On the other hand, when it is determined that the opening operation of each of the shield plates 113 and 114 has been completed (step S104: Yes), the power transmission control unit 102 ends the shield plate opening operation process.

次に、送電制御部１０２が実施するシールド板閉動作処理について、図５のフローチャートを参照して説明する。   Next, shield plate closing operation processing performed by the power transmission control unit 102 will be described with reference to the flowchart of FIG.

図５において、送電制御部１０２は、例えば充電完了を示す信号等の所定信号を検出した場合、先ず、シールド板１１３及び１１４を収容するように、駆動部１０４を制御する（ステップＳ２０１）。続いて、送電制御部１０２は、シールド板１１３及び１１４各々の閉動作が完了したか否かを判定する（ステップＳ２０２）。   In FIG. 5, when detecting a predetermined signal such as a signal indicating completion of charging, for example, the power transmission control unit 102 first controls the driving 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).

シールド板１１３及び１１４各々の閉動作が完了していないと判定された場合（ステップＳ２０２：Ｎｏ）、送電制御部１０２は、ステップＳ２０２の処理を再び実施する。他方、シールド板１１３及び１１４各々の閉動作が完了したと判定された場合（ステップＳ２０２：Ｙｅｓ）、送電制御部１０２は、シールド板１１１及び１１２を収容するように、駆動部１０４を制御する（ステップＳ２０３）。   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).

続いて、送電制御部１０２は、シールド板１１１及び１１２各々の閉動作が完了したか否かを判定する（ステップＳ２０４）。シールド板１１１及び１１２各々の閉動作が完了していないと判定された場合（ステップＳ２０４：Ｎｏ）、送電制御部１０２は、ステップＳ２０４の処理を再び実施する。   Subsequently, the power transmission control unit 102 determines whether or not the closing operation of each of the shield plates 111 and 112 has been 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.

他方、シールド板１１１及び１１２各々の閉動作が完了したと判定された場合（ステップＳ２０４：Ｙｅｓ）、送電制御部１０２は、シールド板閉動作処理を終了する。   On the other hand, 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.

本実施形態に係る「送電装置１００」、「送電制御部１０２」及び「シールド部１１０」は、夫々、本発明に係る「第１の電力伝送装置」、「制御部」及び「遮蔽部」の一例である。本実施形態に係る「シールド板１１１、１１２、１１３及び１１４」は、本発明に係る「複数の遮蔽板」の一例である。本実施形態に係る「シールド板１１１及び１１２」並びに「シールド板１１３及び１１４」は、夫々、本発明に係る「第１遮蔽板対」及び「第２遮蔽板対」の一例である。本実施形態に係る「シールド部１１０の閉状態」及び「シールド部１１０の開状態」は、夫々、本発明に係る「第１の状態」及び「第２の状態」の一例である。   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.

＜変形例＞
次に、第１実施形態の変形例に係る電力伝送装置について、図６を参照して説明する。図６は、図２と同趣旨の、第１実施形態の変形例に係るシールド部の開閉動作の概念を示す概念図である。<Modification>
Next, a power transmission device according to a modification of the first embodiment will be described with reference to FIG. 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.

本変形例では、シールド部１１０の閉状態において、シールド部１１０を構成する複数のシールド板が、互いに重なるように配置される。そして、シールド部１１０が閉状態から開状態へ切り換えられる際には、図６に示すように、駆動部１０４により、シールド板が一枚ずつ立設される。   In this modification, 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. When the shield part 110 is switched from the closed state to the open state, the shield plate is erected one by one by the drive part 104 as shown in FIG.

＜第２実施形態＞
本発明の電力伝送装置に係る第２実施形態を、図７乃至図１０を参照して説明する。第２実施形態では、シールド部の構成が一部異なっている以外は、第１実施形態と同様である。よって、第２実施形態について、第１実施形態と重複する説明を省略すると共に、図面上における共通箇所には同一符号を付して示し、基本的に異なる点についてのみ、図７乃至図１０を参照して説明する。Second Embodiment
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.

本実施形態に係るシールド板の構成について、図７を参照して説明する。図７は、第２実施形態に係るシールド板の構成を示す概念図である。   The configuration of the shield plate according to the present embodiment will be described with reference to FIG. FIG. 7 is a conceptual diagram showing the configuration of the shield plate according to the second embodiment.

図７に示すように、シールド板は、駆動軸に接続された第１の部分と、伸長駆動ギヤを有する第２の部分とを有している。そして、シールド部１１０が閉状態から開状態へ切り換えられる際には、シールド板が立設された後に、該シールド板の第２の部分が、伸長駆動モータにより、第１の部分に沿って移動される（図７（ｂ）参照）。   As shown in FIG. 7, the shield plate has a first portion connected to the drive shaft and a second portion having an extension drive gear. When 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).

この結果、シールド板全体の長さが長くなり、送電アンテナ１０１及び受電アンテナン２０１間の空間を包囲できるので、送電アンテナ１０１及び受電アンテナ２０１間における電磁界の漏洩を確実に防止することができる。   As a result, 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. .

ここで、図８（ａ）に示すように、シールド板の第２の部分の先端に、例えば接触検知センサを取り付け、該接触検知センサが車両底部１ａに接したことを条件に、シールド板の第２の部分の駆動を停止するように、伸長駆動モータを制御すれば、シールド板を適切に伸長することができる。つまり、接触検知センサが車両底部１ａに接触したことを検知することにより、シールド板の伸長が完了したことを確認すればよい。   Here, as shown in FIG. 8 (a), for example, 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 | extension of a shield board was completed by detecting that a contact detection sensor contacted the vehicle bottom part 1a.

他方、図８（ｂ）に示すように、シールド板の第１の部分の下部に、例えば接触検知センサを取り付け、該接触検知センサが、シールド板の第２の部分に接したことを条件に、シールド板の第２の部分の駆動を停止するように、伸長駆動モータを制御すれば、シールド板を適切に収縮することができる。つまり、接触検知センサがシールド板の第２の部分に接触したことを検知することにより、シールド板の収縮が完了したことを確認すればよい。   On the other hand, as shown in FIG. 8B, for example, 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.

尚、図８は、第２実施形態に係るシールド板の位置の検出方法の一例を示す概念図である。本実施形態に係る「伸長駆動モータ」は、本発明に係る「伸縮制御部」の一例である。   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.

上述の如く構成された送電装置１００の送電制御部１０２が実施する充電準備処理について、図９のフローチャートを参照して説明する。   The charging preparation process 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.

図９において、送電制御部１０２は、先ず、車両１に搭載された受電装置２００の受電制御部２０２から送信された信号に基づいて、車両１（即ち、受電装置２００）の充電準備が整ったか否かを判定する（ステップＳ３０１）。充電準備が整っていないと判定された場合（ステップＳ３０１：Ｎｏ）、送電制御部１０２は、ステップＳ１０１の処理を再び実施する。   In FIG. 9, first, 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.

他方、充電準備が整ったと判定された場合（ステップＳ３０１：Ｙｅｓ）、送電制御部１０２は、シールド板開動作処理（図４参照）を実施する（ステップＳ１）。次に、送電制御部１０２は、シールド板の開動作が完了したか否かを判定する（ステップＳ３０２）。   On the other hand, 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).

シールド板の開動作が完了していないと判定された場合（ステップＳ３０２：Ｎｏ）、送電制御部１０２は、ステップＳ３０２の処理を再び実施する。他方、シールド板の開動作が完了したと判定された場合（ステップＳ３０２：Ｙｅｓ）、送電制御部１０２は、シールド板の第２の部分を伸長するように伸長駆動モータを制御する（ステップＳ３０３）。   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). .

次に、送電制御部１０２は、シールド板の伸長が完了したか否かを判定する（ステップＳ３０４）。シールド板の伸長の完了は、上述の如く、例えば、シールド板の第２の部分の上部に設置された接触検知センサが車両底部１ａに接触したことを検知することにより確認すればよい。シールド板の伸長が完了していないと判定された場合（ステップＳ３０４：Ｎｏ）、送電制御部１０２は、ステップＳ３０４の処理を再び実施する。他方、シールド板の伸長が完了したと判定された場合（ステップＳ３０４：Ｙｅｓ）、送電制御部１０２は、充電準備処理を終了する。   Next, the power transmission control unit 102 determines whether or not the extension of the shield plate is 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. When it is determined that the extension of the shield plate has not been completed (step S304: No), the power transmission control unit 102 performs the process of step S304 again. On the other hand, when it is determined that the extension of the shield plate has been completed (step S304: Yes), the power transmission control unit 102 ends the charging preparation process.

次に、送電制御部１０２が実施する充電後処理について、図１０のフローチャートを参照して説明する。   Next, post-charging processing performed by the power transmission control unit 102 will be described with reference to the flowchart of FIG.

図１０において、送電制御部１０２は、先ず、車両１に搭載された車載バッテリ２０４の充電が完了したか否かを判定する（ステップＳ４０１）。車載バッテリ２０４の充電が完了していないと判定された場合、送電制御部１０２は、ステップＳ４０１の処理を再び実施する。他方、車載バッテリ２０４の充電が完了したと判定された場合（ステップＳ４０１：Ｙｅｓ）、送電制御部１０２は、シールド板の第２の部分を収縮するように伸長駆動モータを制御する（ステップＳ４０２）。   In FIG. 10, 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). .

続いて、送電制御部１０２は、シールド板の収縮が完了したか否かを判定する（ステップＳ４０３）。シールド板の収縮の完了は、上述の如く、例えば、シールド板の第１の部分の下部に設置された接触検知センサがシールド板の第２の部分に接触したことを検知することにより確認すればよい。シールド板の収縮が完了していないと判定された場合（ステップＳ４０３：Ｎｏ）、送電制御部１０２は、ステップＳ４０３の処理を再び実施する。他方、シールド板の収縮が完了したと判定された場合（ステップＳ４０３：Ｙｅｓ）、送電制御部１０２は、シールド板閉動作処理（図５参照）を実施する（ステップＳ２）。   Subsequently, 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. When it is determined that the shield plate has not been contracted (step S403: No), the power transmission control unit 102 performs the process of step S403 again. On the other hand, when it is determined that the contraction of the shield plate is completed (step S403: Yes), the power transmission control unit 102 performs a shield plate closing operation process (see FIG. 5) (step S2).

次に、送電制御部１０２は、シールド板の閉動作が完了したか否かを判定する（ステップＳ４０４）。シールド板の閉動作が完了していないと判定された場合（ステップＳ４０４：Ｎｏ）、送電制御部１０２は、ステップＳ４０４の処理を再び実施する。他方、シールド板の閉動作が完了したと判定された場合（ステップＳ４０４：Ｙｅｓ）、送電制御部１０２は、充電後処理を終了する。   Next, the power transmission control unit 102 determines whether or not the closing operation of the shield plate is completed (step S404). When it is determined that the closing operation of the shield plate is not completed (step S404: No), the power transmission control unit 102 performs the process of step S404 again. On the other hand, when it determines with the closing operation of a shield board having been completed (step S404: Yes), the power transmission control part 102 complete | finishes a post-charge process.

＜第１変形例＞
次に、第２実施形態の第１変形例に係る電力伝送装置について、図１１を参照して説明する。図１１は、図８（ａ）と同趣旨の、第２実施形態の第１変形例に係るシールド板の位置の検出方法の一例を示す概念図である。<First Modification>
Next, a power transmission device according to a first modification of the second embodiment will be described with reference to FIG. 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.

本変形例では、一対の光電センサが車両底部１ａに取り付けられている。該一対の光電センサは、該一対の光電センサの一方から出力された、例えば赤外線等の光を、該一対の光電センサの他方で検知したか否かに応じて、該一対の光電センサ間にシールドが侵入したか否かを判定可能に構成されている。該一対の光電センサ間にシールドが侵入し、光路が遮られたことを検知することにより、シールド板の伸長が完了したことを確認する。   In this modification, 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.

本変形例では、一対の光電センサにより、光路が遮られたことが検知された場合、光路が遮られたことを示す信号が、受電装置２００の受電制御部２０２を介して、送電装置１００の送電制御部１０２に送信される。送電制御部１０２は、光路が遮られたことを示す信号を受信したことを条件に、シールド板の伸長を停止するように、伸長駆動モータを制御する。   In this modification, when it is detected that the optical path is blocked by the pair of photoelectric sensors, 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.

＜第２変形例＞
次に、第２実施形態の第２変形例に係る電力伝送装置について、図１２を参照して説明する。図１２は、第２実施形態の第２変形例に係る電力伝送装置の構成を示す概念図である。<Second Modification>
Next, a power transmission device according to a second modification of the second embodiment will be described with reference to FIG. FIG. 12 is a conceptual diagram illustrating a configuration of a power transmission device according to a second modification of the second embodiment.

本変形例では、図７に示した、シールド板各々の第２の部分の一端にブラシ状電極１１６（図１２参照）が形成されている。加えて、送電装置１００は、接触検出用の接触検知用信号源１２１と、接触検出器１２２と、を更に備えて構成されている。他方、車両１の車両底部１ａは、車載バッテリ２０４の０Ｖ（ゼロボルト）端子と電気的に接続されている。   In this modification, a brush-like electrode 116 (see FIG. 12) is formed at one end of the second portion of each shield plate shown in FIG. In addition, the power transmission device 100 is configured to further include a contact detection signal source 121 for contact detection and a contact detector 122. On the other hand, 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.

上述した充電準備処理（図９参照）におけるシールド板伸長動作（ステップＳ３０３）の実施時に、送電制御部１０２は、先ず、各ブラシ状電極１１６と、接触検知用信号源１２１及び接触検出器１２２とが電気的に接続されるように、スイッチＳＷを夫々制御する。   When the shield plate extending operation (step S303) in the above-described charging preparation process (see FIG. 9) is performed, 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.

次に、送電制御部１０２は、シールド板を伸長するように伸長駆動モータを制御する。この時、各ブラシ状電極１１６が車両底部１ａに接触すると、複数のブラシ状電極１１６各々が、車両底部１ａにより短絡されるので、接触検出器１２２において信号が検出される。送電制御部１０２は、接触検出器１２２において信号が検出されたことを条件に、シールド板の伸長を停止するように伸長駆動モータを制御する。   Next, the power transmission control unit 102 controls the extension drive motor to extend the shield plate. At this time, when 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 condition that a signal is detected by the contact detector 122.

車載バッテリ２０４の充電が開始される際には、送電制御部１０２は、各ブラシ状電極１１６が接地電位となるように、スイッチＳＷを夫々制御する。このように構成すれば、車体の電位を接地電位とすることができるので、車載バッテリ２０４の充電時におけるユーザの感電を防止することができる。   When charging of the in-vehicle battery 204 is started, the power transmission control unit 102 controls the switches SW so that each brush-like electrode 116 becomes 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.

＜第３実施形態＞
本発明の電力伝送装置に係る第３実施形態を、図１３を参照して説明する。第３実施形態では、シールド部が受電装置に設けられている以外は、第１実施形態と同様である。よって、第３実施形態について、第１実施形態と重複する説明を省略すると共に、図面上における共通箇所には同一符号を付して示し、基本的に異なる点についてのみ、図１３を参照して説明する。図１３は、図１と同趣旨の、第３実施形態に係る電力伝送装置の構成を示すブロック図である。<Third Embodiment>
A third embodiment of the power transmission apparatus of the present invention will be described with reference to FIG. In 3rd Embodiment, it is the same as that of 1st Embodiment except the shield part being provided in the power receiving apparatus. Therefore, the description of the third embodiment that is the same as that of the first embodiment is omitted, and common portions in the drawing are denoted by the same reference numerals, and only fundamentally different points are described with reference to FIG. explain. 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.

図１３において、送電装置１００は、送電アンテナ１０１、送電制御部１０２及び送電駆動部１０３を備えて構成されている。他方、車両２に搭載された、本発明に係る「第２の電力伝送装置」の一例としての、受電装置２００は、受電アンテナ２０１、受電制御部２０２、受電駆動・バッテリ充電制御部２０３、車載バッテリ２０４及びシールド部２１０を備えて構成されている。   In FIG. 13, the power transmission device 100 includes a power transmission antenna 101, a power transmission control unit 102, and a power transmission drive unit 103. On the other hand, 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, The battery 204 and the shield part 210 are provided.

上述した各実施形態では、本発明の電力電送装置が、例えば電気自動車等の車両に搭載されたバッテリの充電装置として用いられた場合を一例として挙げたが、本発明の電力電送装置は、例えば、オーディオ・ビジュアル機器や家電製品等に搭載されるバッテリ等の充電装置等としても適用可能である。   In each of the above-described embodiments, the case where 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.

本発明は、上述した実施形態に限られるものではなく、請求の範囲及び明細書全体から読み取れる発明の要旨或いは思想に反しない範囲で適宜変更可能であり、そのような変更を伴う電力伝送装置もまた本発明の技術的範囲に含まれるものである。   The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification. Moreover, it is included in the technical scope of the present invention.

１、２…車両、１００…送電装置、１０１…送電アンテナ、１０２…送電制御部、１０３…送電駆動部、１０４…駆動部、１１０、２１０…シールド部、１１１、１１２、１１３、１１４…シールド板、１１６…ブラシ状電極、１２１…接触検知用信号源、１２２…接触検出器、２００…受電装置、２０１…受電アンテナ、２０２…受電制御部、２０３…受電駆動・バッテリ充電制御部、２０４…車載バッテリ   DESCRIPTION OF SYMBOLS 1, 2 ... Vehicle, 100 ... Power transmission apparatus, 101 ... Power transmission antenna, 102 ... Power transmission control part, 103 ... Power transmission drive part, 104 ... Drive part, 110, 210 ... Shield part, 111, 112, 113, 114 ... Shield plate , 116 ... brush-like electrode, 121 ... contact detection signal source, 122 ... contact detector, 200 ... power reception device, 201 ... power reception antenna, 202 ... power reception control unit, 203 ... power reception drive / battery charge control unit, 204 ... in-vehicle Battery

Claims (6)

地面に沿うと共に、受電装置が備える受電アンテナの受電面と空間を隔てて対向する送電面を有する送電アンテナと、
前記送電面を覆う第１の状態と、前記送電面の上方を開放すると共に、前記送電アンテナの上方から平面的に見て、前記送電アンテナの周囲を覆う第２の状態と、を交互に切り換え可能であり、前記第１の状態から前記第２の状態へ切り換わる過程において、前記送電アンテナ及び前記受電アンテナ間に存在する異物を除去する遮蔽部と、
を備えることを特徴とする電力伝送装置。A power transmission antenna that has a power transmission surface along the ground and facing the power reception surface of the power reception antenna included in the power reception device with a space therebetween,
The first state covering the power transmission surface and the second state covering the periphery of the power transmission antenna as viewed in plan from above the power transmission antenna are alternately switched. In the process of switching from the first state to the second state is possible, a shielding unit for removing foreign matter existing between the power transmission antenna and the power reception antenna;
A power transmission device comprising: 前記遮蔽部は、複数の遮蔽板を有し、
前記第１の状態において、前記複数の遮蔽板各々の板面は地面に沿っており、
前記第２の状態において、前記複数の遮蔽板は互いに隣接しており、且つ前記複数の遮蔽板各々の板面は地面に垂直な方向に沿っている
ことを特徴とする請求項１に記載の電力伝送装置。The shielding part has a plurality of shielding plates,
In the first state, the plate surfaces of the plurality of shielding plates are along the ground,
The plurality of shielding plates are adjacent to each other in the second state, and the plate surfaces of the plurality of shielding plates are along a direction perpendicular to the ground. Power transmission device. 前記遮蔽部は、前記第１の状態において、夫々２枚の遮蔽板からなると共に互いに重なる第１遮蔽板対及び第２遮蔽板対を有し、
前記第２の状態において、前記第１遮蔽板対を構成する２枚の遮蔽板、及び前記第２遮蔽板対を構成する２枚の遮蔽板各々の板面は、地面に垂直な方向に沿っており、且つ、前記第１遮蔽板対を構成する２枚の遮蔽板各々は、前記第２遮蔽板対を構成する２枚の遮蔽板に隣接している
ことを特徴とする請求項１に記載の電力伝送装置。The shielding portion includes a first shielding plate pair and a second shielding plate pair that are each composed of two shielding plates and overlap each other in the first state,
In the second state, 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 along a direction perpendicular to the ground. Further, each of the two shielding plates constituting the first shielding plate pair is adjacent to the two shielding plates constituting the second shielding plate pair. The power transmission device described. 前記遮蔽部は、夫々伸縮可能に構成された複数の遮蔽板を有し、
前記複数の遮蔽板各々の一端には、前記受電装置を検知するセンサ部が設けられており、
前記第１の状態から前記第２の状態へ切り換わる際に、前記複数の遮蔽板各々の板面が地面に垂直な方向に沿う状態になった後、前記複数の遮蔽板各々に設けられたセンサ部が前記受電装置を検知するまで、前記複数の遮蔽板各々が伸長されるように、前記複数の遮蔽板を夫々制御する伸縮制御部を更に備える
ことを特徴とする請求項１に記載の電力伝送装置。Each of the shielding portions includes a plurality of shielding plates configured to be extendable and contractible,
At one end of each of the plurality of shielding plates, a sensor unit that detects the power receiving device is provided,
When switching from the first state to the second state, each of the plurality of shielding plates is provided in each of the plurality of shielding plates after the plate surfaces thereof are in a state perpendicular to the ground. The expansion / contraction control unit that controls each of the plurality of shielding plates is further provided so that each of the plurality of shielding plates is extended until the sensor unit detects the power receiving device. Power transmission device. 前記遮蔽部は、複数の遮蔽板を有し、
前記複数の遮蔽板各々の一端には、前記送電アンテナから前記受電アンテナへ電力が供給される際に接地電位とされる電極が設けられている
ことを特徴とする請求項１に記載の電力伝送装置。The shielding part has a plurality of shielding plates,
2. The power transmission according to claim 1, wherein an electrode that is set to a ground potential when power is supplied from the power transmitting antenna to the power receiving antenna is provided at one end of each of the plurality of shielding plates. apparatus. 地面に沿うと共に、送電装置が備える送電アンテナの送電面と空間を隔てて対向する受電面を有する受電アンテナと、
前記受電面を覆う第１の状態と、前記受電面の下方を開放すると共に、前記受電アンテナの下方から平面的に見て、前記受電アンテナの周囲を覆う第２の状態と、を交互に切り換え可能であり、前記第１の状態から前記第２の状態へ切り換わる過程において、前記送電アンテナ及び前記受電アンテナ間に存在する異物を除去する遮蔽部と、
を備えることを特徴とする電力伝送装置。A power receiving antenna having a power receiving surface along the ground and facing the power transmitting surface of the power transmitting antenna included in the power transmitting device across a space;
The first state covering the power receiving surface and the second state covering the periphery of the power receiving antenna as viewed in plan view from below the power receiving antenna are alternately switched. In the process of switching from the first state to the second state is possible, a shielding unit for removing foreign matter existing between the power transmission antenna and the power reception antenna;
A power transmission device comprising:
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