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JP5666355B2 - Non-contact power transmission device - Google Patents

Non-contact power transmission device Download PDF

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Publication number
JP5666355B2
JP5666355B2 JP2011056746A JP2011056746A JP5666355B2 JP 5666355 B2 JP5666355 B2 JP 5666355B2 JP 2011056746 A JP2011056746 A JP 2011056746A JP 2011056746 A JP2011056746 A JP 2011056746A JP 5666355 B2 JP5666355 B2 JP 5666355B2
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antenna
fluid
bag body
power transmission
bag
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JP2012196015A (en
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雅城 堀内
雅城 堀内
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Nagano Japan Radio Co Ltd
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Nagano Japan Radio Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/124—Detection or removal of foreign bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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

Description

本発明は、送信アンテナと受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置に関するものである。   The present invention relates to a contactless power transmission device that includes a transmission antenna and a reception antenna and transmits power in a contactless manner.

この種の非接触型電力伝送装置として、特開２０１０−１３０８００号公報において出願人が開示した非接触型電力伝送システム（以下、「電力伝送装置」ともいう）が知られている。この電力伝送装置は、信号発生部、送信アンテナおよび第１整合部などを有する送電装置と、受信アンテナ、第２整合部および整流部などを有する受電装置とを備えて、電力を非接触で伝送可能に構成されている。この電力伝送装置では、送電装置の第１整合部が、受信アンテナとの間の長さ（距離）に応じて変化する送信アンテナのインピーダンスに信号発生部側のインピーダンスを整合させ（整合状態に移行させ）、受電装置の第２整合部が、送信アンテナとの間の長さに応じて変化する受信アンテナのインピーダンスと整流部側のインピーダンスとを整合させる（整合状態に移行させる）。これにより、この電力伝送装置では、電力の伝送効率の低下を最小限に抑えつつ、良好に電力伝送を行うことができる送信アンテナ（送電装置）と受信アンテナ（受電装置）との間の長さを拡げることが可能となっている。   As this type of non-contact power transmission device, a non-contact power transmission system (hereinafter also referred to as “power transmission device”) disclosed by the applicant in Japanese Patent Application Laid-Open No. 2010-130800 is known. The power transmission device includes a power transmission device having a signal generation unit, a transmission antenna, a first matching unit, and the like, and a power reception device having a reception antenna, a second matching unit, a rectification unit, and the like, and transmits power in a contactless manner. It is configured to be possible. In this power transmission device, the first matching unit of the power transmission device matches the impedance of the signal generation unit side with the impedance of the transmission antenna that changes according to the length (distance) between the power transmission device (transition to the matching state). And the second matching unit of the power receiving apparatus matches the impedance of the receiving antenna, which changes according to the length between the power receiving device and the impedance on the rectifying unit side (shifts to the matching state). Thus, in this power transmission device, the length between the transmission antenna (power transmission device) and the reception antenna (power reception device) that can perform power transmission satisfactorily while minimizing a decrease in power transmission efficiency. Can be expanded.

特開２０１０−１３０８００号公報（第５−９頁、第１図）JP 2010-130800 A (page 5-9, FIG. 1)

ところが、上記の電力伝送装置には、改善すべき以下の課題が存在する。すなわち、この電力伝送装置では、上記のように構成したことで、送信アンテナと受信アンテナとの間の長さを拡げることを可能としているが、両アンテナ間の長さが拡がった分、両アンテナ間に「物」が進入する可能性が高まる。この場合、両アンテナ間に物が進入したときには、その物によって電磁場が遮蔽され、これに起因して電力の伝送効率が低下するおそれがある。また、大きな電力を伝送するために強い電磁場を発生させる状態で両アンテナ間に物が進入したときには、物損事故、火災事故および傷害事故など（以下、単に「物損事故等）が発生する可能性もある。   However, the power transmission apparatus has the following problems to be improved. That is, in this power transmission device, it is possible to increase the length between the transmission antenna and the reception antenna by being configured as described above. There is an increased possibility of “things” in between. In this case, when an object enters between the two antennas, the electromagnetic field is shielded by the object, and there is a risk that the power transmission efficiency may decrease due to this. In addition, when an object enters between both antennas in a state where a strong electromagnetic field is generated to transmit a large amount of power, a property damage accident, fire accident, injury accident, etc. (hereinafter simply referred to as “material damage accident”, etc.) may occur. There is also sex.

本発明は、かかる課題を解決すべくなされたものであり、大きな電力を安全でかつ効率よく非接触で伝送し得る非接触型電力伝送装置を提供することを主目的とする。   The present invention has been made to solve such a problem, and a main object of the present invention is to provide a contactless power transmission device capable of transmitting a large amount of power safely and efficiently without contact.

上記目的を達成すべく請求項１記載の非接触型電力伝送装置は、交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、前記袋体に対する前記流体の供給・排出を実行するポンプと、検出部とを備え、前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形し、前記検出部は、膨張変形した前記袋体によって前記空隙が埋められた状態を検出し、前記ポンプは、前記袋体に前記流体を供給している状態において、前記袋体によって前記空隙が埋められた状態を前記検出部が検出したときに、前記流体の前記袋体への供給を停止する。 In order to achieve the above object, the non-contact power transmission device according to claim 1, wherein a transmission antenna that receives an AC signal to generate an electromagnetic field, and the electromagnetic field generated by the transmission antenna at a position apart from the transmission antenna. A non-contact type power transmission device that includes a receiving antenna that generates an induced voltage by a non-contact type and transmits power in a non-contact manner, and is disposed between the transmitting antenna and the receiving antenna and supplies and discharges fluid A bag body that can be deformed by expansion and contraction, a pump that performs supply and discharge of the fluid to and from the bag body, and a detection unit, and the bag body when the fluid is supplied from the pump, the transmitting antenna and expanded deformed state to fill the voids between the receiving antenna, the detection unit, a state in which the gap is filled by the bag inflated deformed And when the detection unit detects that the gap is filled with the bag body in a state where the fluid is supplied to the bag body, the pump supplies the fluid to the bag body. Stop supplying .

また、請求項２記載の非接触型電力伝送装置は、請求項１記載の非接触型電力伝送装置において、前記検出部は、前記袋体内の前記流体の流体圧を検出する圧力センサを備え、当該検出された前記流体圧が予め規定されたしきい値圧以上となったときに、前記袋体によって前記空隙が埋められた状態を検出する。 The contactless power transmission device according to claim 2 is the contactless power transmission device according to claim 1 , wherein the detection unit includes a pressure sensor that detects a fluid pressure of the fluid in the bag body, When the detected fluid pressure is equal to or higher than a predetermined threshold pressure, a state in which the gap is filled with the bag is detected.

また、請求項３記載の非接触型電力伝送装置は、交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、前記袋体に対する前記流体の供給・排出を実行するポンプと、光学センサとを備え、前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形し、前記光学センサは、前記袋体が収縮変形している状態での前記空隙内における異物の有無を検出し、前記ポンプは、前記光学センサによって前記空隙内に前記異物が存在しないと検出されたときに、前記流体の前記袋体への供給を開始する。 According to a third aspect of the present invention, there is provided the non-contact power transmission apparatus according to claim 3, wherein an induction voltage is generated by a transmission antenna that generates an electromagnetic field by receiving an AC signal, and the electromagnetic field generated by the transmission antenna at a position separated from the transmission antenna. A non-contact type power transmission device including a receiving antenna for generating power and transmitting power in a non-contact manner, and is disposed between the transmitting antenna and the receiving antenna and is expanded and contracted by supplying and discharging fluid and deformable bag body, and a pump for performing the supply and discharge of the fluid to the bag, and an optical science sensor, the bag, when the fluid is supplied from said pump, said transmitting antenna and expanded deformed state to fill the voids between the receiving antennas, wherein the optical sensor, the bag is foreign matter within the gap in the state of being contracted and deformed Detecting the free, the pump, when the foreign object is detected to be absent in said gap by said optical sensor, to start the supply to the bag body of the fluid.

また、請求項４記載の非接触型電力伝送装置は、交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、前記袋体に対する前記流体の供給・排出を実行するポンプとを備え、前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形すると共に、膨張変形した状態において前記送信アンテナおよび前記受信アンテナの各対向面を覆う部位を除く部位全体が前記電磁場を遮蔽可能な材質で形成されている。 According to a fourth aspect of the present invention, there is provided the non-contact power transmission device according to claim 4 , wherein an induction voltage is generated by the transmission antenna that generates an electromagnetic field by receiving an AC signal, and the electromagnetic field generated by the transmission antenna at a position separated from the transmission antenna. A non-contact type power transmission device including a receiving antenna for generating power and transmitting power in a non-contact manner, and is disposed between the transmitting antenna and the receiving antenna and is expanded and contracted by supplying and discharging fluid A deformable bag and a pump for supplying and discharging the fluid to and from the bag, and the bag between the transmitting antenna and the receiving antenna when the fluid is supplied from the pump. sites as well as expansion deformation state to fill the gap, covering the transmitting antenna and the facing surface of the receiving antenna in a state where the expansion deformation Entire region excluding is formed in capable of shielding material for electromagnetic field.

また、請求項５記載の非接触型電力伝送装置は、交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、前記袋体に対する前記流体の供給・排出を実行するポンプとを備え、前記受信アンテナは、前記電力の伝送を受ける車両のフロアパネルに配設され、前記送信アンテナは、前記車両が前記電力の伝送を受ける給電位置における路面に配設され、前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形し、前記送信アンテナが配設された前記路面上に設置されると共に、前記送信アンテナと前記受信アンテナとが対向する状態で前記給電位置に前記車両が停止しているときに、当該送信アンテナが設置された前記路面および前記フロアパネルの双方と接触する状態に膨張変形する。 According to a fifth aspect of the present invention, there is provided the contactless power transmission device according to the fifth aspect of the present invention, in which an induction voltage is generated by a transmission antenna that generates an electromagnetic field by receiving an AC signal, and the electromagnetic field generated by the transmission antenna at a position away from the transmission antenna. A non-contact type power transmission device including a receiving antenna for generating power and transmitting power in a non-contact manner, and is disposed between the transmitting antenna and the receiving antenna and is expanded and contracted by supplying and discharging fluid A deformable bag and a pump for supplying and discharging the fluid to and from the bag; the receiving antenna is disposed on a floor panel of the vehicle that receives the transmission of the power; said vehicle is arranged in the road surface at the feed position for receiving the transmission of the power, the bag, when the fluid is supplied from said pump, said feeding Expanded deformed state to fill a gap between the antenna and the receiving antenna, together with the transmitting antenna is placed on the road surface arranged, in the feeding position with said transmitting antenna and said receiving antenna faces When the vehicle is stopped, the vehicle is inflated and deformed so as to be in contact with both the road surface on which the transmission antenna is installed and the floor panel.

また、請求項６記載の非接触型電力伝送装置は、請求項５記載の非接触型電力伝送装置において、前記袋体は、膨張変形したときに前記車両を前記路面から持ち上げるジャッキとして機能する。 According to a sixth aspect of the present invention, in the non-contact power transmission device according to the fifth aspect , the bag functions as a jack that lifts the vehicle from the road surface when the bag body is inflated and deformed.

請求項１記載の非接触型電力伝送装置によれば、送信アンテナで発生した電磁場によって受信アンテナが誘導電圧を発生させているときに、袋体を膨張変形させて送信アンテナと受信アンテナとの間の空隙を埋めることができるため、電磁場が発生している送信アンテナと受信アンテナとの間への物や人の進入を確実に阻止することができ、この物や人の進入に起因した送電電力の伝送効率の低下を防止することができると共に、物損事故等の発生を確実に防止して安全性を向上させることができる。   According to the contactless power transmission device according to claim 1, when the receiving antenna generates an induced voltage due to the electromagnetic field generated by the transmitting antenna, the bag body is inflated and deformed so as to be between the transmitting antenna and the receiving antenna. Because it is possible to fill the gap between the transmitting antenna and the receiving antenna where an electromagnetic field is generated, it is possible to reliably prevent an object or person from entering between the transmitting antenna and the receiving antenna. As a result, it is possible to prevent a decrease in transmission efficiency and to reliably prevent occurrence of property damage accidents and improve safety.

また、この非接触型電力伝送装置によれば、袋体にポンプで流体を供給している状態において、袋体によって空隙が埋められた状態を検出部が検出したときに、ポンプによる流体の袋体への供給を停止させることができるため、袋体内の流体の圧力が袋体の許容圧力を超える事態を確実に回避することができ、袋体の破損やポンプの故障などの発生を確実に防止することができる。 Further, according to the contactless power transmission apparatus of this, in a state which supplies fluid pumped into the bag, when the detecting unit a state where the gap is filled is detected by the bag body, the fluid by the pump Since the supply to the bag can be stopped, it is possible to reliably avoid the situation where the fluid pressure in the bag exceeds the allowable pressure of the bag, and to ensure that the bag is broken or the pump is broken. Can be prevented.

また、請求項２記載の非接触型電力伝送装置によれば、検出部は袋体内の流体の流体圧を検出する圧力センサを備え、検出された流体圧が予め規定されたしきい値圧以上となったときに、袋体によって空隙が埋められた状態にあることを検出するため、袋体内の流体圧を検出するという簡易な構成でありながら、袋体によって空隙が埋められた状態を確実に検出できるため、装置コストの上昇を最小限に抑えることができる。 According to the non-contact power transmission device according to claim 2 , the detection unit includes a pressure sensor that detects the fluid pressure of the fluid in the bag, and the detected fluid pressure is equal to or higher than a predetermined threshold pressure. In order to detect that the gap is filled with the bag body, the fluid pressure in the bag body is detected, but the gap is reliably filled with the bag body. Therefore, an increase in device cost can be minimized.

また、請求項３記載の非接触型電力伝送装置によれば、袋体の収縮変形時における送信アンテナと受信アンテナとの間の空隙内に異物が存在していない状態において、流体の袋体への供給を開始することができるため、膨張変形した袋体が空隙内に存在している異物によって損傷したり、逆に、膨張変形した袋体によって異物が損傷するといった不具合の発生を確実に回避することができる。 According to the non-contact power transmission device according to claim 3 , in the state where no foreign matter is present in the gap between the transmitting antenna and the receiving antenna at the time of shrinkage deformation of the bag body, the fluid bag body Therefore, it is possible to reliably avoid the occurrence of problems such as the inflated and deformed bag body being damaged by foreign matter existing in the gap, and conversely, the inflated and deformed bag body is damaged by foreign matter. can do.

また、請求項４記載の非接触型電力伝送装置によれば、送信アンテナと受信アンテナとの間の空隙を埋める袋体（袋体における電磁場の遮蔽が可能な材質で形成された部位）により、袋体内に発生する電磁場の袋体の外部への漏洩を低減することができる。 Further, according to the non-contact power transmission device according to claim 4, by the bag body (the portion formed of a material capable of shielding the electromagnetic field in the bag body) that fills the gap between the transmission antenna and the reception antenna, The leakage of the electromagnetic field generated in the bag body to the outside of the bag body can be reduced.

また、請求項５記載の非接触型電力伝送装置によれば、車両に対して、人や物が入り込み難いフロアパネル側から給電することができるため、送信アンテナが設置された路面およびフロアパネルの双方と接触する状態に膨張変形した袋体によって送信アンテナと受信アンテナとの間の空隙を埋めることができることと相まって、送信アンテナと受信アンテナとの間への物や人の進入を一層確実に阻止することができる。 Further, according to the non-contact power transmission device according to claim 5, since power can be supplied to the vehicle from the floor panel side where people and objects are difficult to enter, the road surface on which the transmission antenna is installed and the floor panel Combined with the fact that the gap between the transmitting antenna and the receiving antenna can be filled by the bag body that is inflated and deformed so as to be in contact with both sides, it is possible to further prevent the entry of objects and people between the transmitting antenna and the receiving antenna. can do.

また、請求項６記載の非接触型電力伝送装置によれば、給電状態において、膨張変形した袋体がジャッキとして機能して車両を路面から持ち上げた状態に維持することができるため、給電中に誤って車両を移動させるといったことを防止することができる。 Further, according to the non-contact power transmission device according to claim 6 , in the power supply state, the inflated and deformed bag body can function as a jack and can maintain the vehicle lifted from the road surface. It is possible to prevent the vehicle from being moved by mistake.

電力伝送装置１の構成を示す構成図である。1 is a configuration diagram illustrating a configuration of a power transmission device 1. FIG. 送電装置２における第１整合部１３の回路図である。3 is a circuit diagram of a first matching unit 13 in the power transmission device 2. FIG. 受電装置３における第２整合部２２の回路図である。3 is a circuit diagram of a second matching unit 22 in the power receiving device 3. FIG. 送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰを膨張変形させた袋体４で埋めた状態を示す斜視図である。It is a perspective view which shows the state which filled the space | gap SP between the transmission antenna 12 and the receiving antenna 21 with the bag body 4 which carried out expansion deformation. 送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰ内で袋体４を収縮変形させた状態を示す斜視図である。It is a perspective view which shows the state which carried out the shrinkage deformation of the bag body 4 in the space | gap SP between the transmitting antenna 12 and the receiving antenna 21. FIG. バッテリ５の搭載された車両４１、およびこの車両４１に対する電力伝送を行う給電ステーション４２に適用した電力伝送装置１の構成図である。1 is a configuration diagram of a power transmission device 1 applied to a vehicle 41 on which a battery 5 is mounted and a power supply station 42 that performs power transmission to the vehicle 41. FIG. 図６において、空隙ＳＰを膨張変形させた袋体４で埋めた状態を説明するための説明図である。In FIG. 6, it is explanatory drawing for demonstrating the state which filled the space | gap SP with the bag body 4 which carried out the expansion deformation. 膨張変形させた袋体４によって空隙ＳＰが埋められた状態を光学センサ（発光装置５１および受光装置５２）で検出する構成を示す車両４１の断面図である（車両４１の後輪側から前輪側を見た断面図）。FIG. 3 is a cross-sectional view of a vehicle 41 showing a configuration in which an optical sensor (light emitting device 51 and light receiving device 52) detects a state in which a gap SP is filled with an inflated and deformed bag body 4 (from the rear wheel side to the front wheel side of the vehicle 41) Cross-sectional view of 膨張変形させた袋体４で車両４１を持ち上げる構成を示す構成図である。It is a block diagram which shows the structure which lifts the vehicle 41 with the bag body 4 expanded and deformed. 他の袋体４Ａの構成を示す斜視図である。It is a perspective view which shows the structure of the other bag body 4A.

以下、添付図面を参照して、非接触型電力伝送装置の実施の形態について説明する。   Hereinafter, an embodiment of a contactless power transmission device will be described with reference to the accompanying drawings.

図１に示す非接触型電力伝送装置（以下、単に「電力伝送装置」ともいう）１は、送電装置２、受電装置３および袋体４を備え、送電装置２の後述する送信アンテナ１２および受電装置３の後述する受信アンテナ２１間の空隙ＳＰ（同図中において一点鎖線で示される空間）を袋体４が埋めた状態において、送電装置２から送電された送電電力を受電装置３が非接触で受電すると共に、受電した送電電力を負荷（本例では、一例としてバッテリ）５に対して供給可能に構成されている。   A non-contact type power transmission device (hereinafter also simply referred to as “power transmission device”) 1 shown in FIG. 1 includes a power transmission device 2, a power reception device 3, and a bag body 4. In a state where the bag 4 fills a gap SP (a space indicated by a one-dot chain line in the drawing) between the receiving antennas 21 described later of the device 3, the power receiving device 3 does not contact the transmitted power transmitted from the power transmitting device 2. And the received transmitted power can be supplied to a load (in this example, a battery).

送電装置２は、信号発生部１１、送信アンテナ１２、第１整合部１３、ポンプ１４、圧力センサ１５、操作部１６および処理部１７を備えて構成されている。信号発生部１１は、交流信号Ｓ１を発生して出力する。送信アンテナ１２は、一例としてコイル形状（つるまきバネ形状や平面コイル形状）に形成されている。また、送信アンテナ１２は、受電装置３に配設された後述の受信アンテナ２１と電磁結合する。具体的には、送信アンテナ１２は、受信アンテナ２１と共に一対の共鳴器（一対の自己共振コイル）を構成し、電磁場において共鳴する。なお、本例では、送信アンテナ１２は、図４，５に示すように、一例として平面視円形の形状に形成されているが、この形状に限定されるものではなく、平面視多角形（例えば四角形）や楕円形など、種々の形状とすることができる。   The power transmission device 2 includes a signal generation unit 11, a transmission antenna 12, a first matching unit 13, a pump 14, a pressure sensor 15, an operation unit 16, and a processing unit 17. The signal generator 11 generates and outputs an AC signal S1. As an example, the transmission antenna 12 is formed in a coil shape (a helical spring shape or a planar coil shape). In addition, the transmission antenna 12 is electromagnetically coupled to a later-described reception antenna 21 provided in the power receiving device 3. Specifically, the transmitting antenna 12 forms a pair of resonators (a pair of self-resonant coils) together with the receiving antenna 21, and resonates in an electromagnetic field. In this example, as shown in FIGS. 4 and 5, the transmission antenna 12 is formed in a circular shape in plan view as an example, but is not limited to this shape, and is not limited to this shape. Various shapes such as a quadrangle) and an ellipse can be used.

第１整合部１３は、信号発生部１１と送信アンテナ１２との間に配設されて（具体的には、信号発生部１１と送信アンテナ１２とを接続する伝送路に介装されて）、受信アンテナ２１との間の距離に応じて変化する送信アンテナ１２のインピーダンス（入力インピーダンス）に信号発生部１１側のインピーダンスを整合させる。   The first matching unit 13 is disposed between the signal generator 11 and the transmission antenna 12 (specifically, interposed in a transmission path connecting the signal generator 11 and the transmission antenna 12). The impedance on the signal generating unit 11 side is matched with the impedance (input impedance) of the transmitting antenna 12 that changes according to the distance to the receiving antenna 21.

本例では、一例として、第１整合部１３は、図２に示すように、送信アンテナ１２に対して並列に接続された可変コンデンサ１３ａと、送信アンテナ１２に対して直列（具体的には、送信アンテナ１２および可変コンデンサ１３ａからなる並列回路に対して直列）に接続された可変コンデンサ１３ｂとを備えて構成されている。この構成により、第１整合部１３は、可変コンデンサ１３ａ，１３ｂの各静電容量が調整されることで、送信アンテナ１２（詳しくは、信号発生部１１側から見た送信アンテナ１２の入力インピーダンス）と信号発生部１１（詳しくは、送信アンテナ１２側から見た信号発生部１１側の出力インピーダンス）とを整合させる。   In this example, as an example, as shown in FIG. 2, the first matching unit 13 includes a variable capacitor 13 a connected in parallel to the transmission antenna 12 and a series (specifically, And a variable capacitor 13b connected in series to a parallel circuit including the transmission antenna 12 and the variable capacitor 13a. With this configuration, the first matching unit 13 adjusts the capacitances of the variable capacitors 13a and 13b, so that the transmission antenna 12 (specifically, the input impedance of the transmission antenna 12 viewed from the signal generation unit 11 side) is adjusted. And the signal generator 11 (specifically, the output impedance on the signal generator 11 side viewed from the transmission antenna 12 side) are matched.

ポンプ１４は、管路１８を介して袋体４に接続されて、袋体４に対する流体（気体または液体）の供給・排出を実行する。また、ポンプ１４は、袋体４への流体の供給動作の開始および停止、並びに袋体４からの流体の排出動作の開始および停止については処理部１７によって制御される。圧力センサ１５は、一例として、管路１８に接続されて、ポンプ１４によって袋体４内に供給されている流体の圧力（流体圧）を測定し、測定した流体圧を示す圧力データＤ１を処理部１７に出力する。また、圧力センサ１５は、後述するように、処理部１７と共に検出部として機能する。   The pump 14 is connected to the bag body 4 via the pipe line 18 and executes supply / discharge of fluid (gas or liquid) to the bag body 4. The pump 14 is controlled by the processing unit 17 to start and stop the fluid supply operation to the bag body 4 and to start and stop the fluid discharge operation from the bag body 4. For example, the pressure sensor 15 is connected to the pipe 18, measures the pressure (fluid pressure) of the fluid supplied into the bag body 4 by the pump 14, and processes the pressure data D 1 indicating the measured fluid pressure. To the unit 17. Moreover, the pressure sensor 15 functions as a detection unit together with the processing unit 17 as described later.

操作部１６は、一例として開始スイッチ（不図示）を備え、この開始スイッチが操作されたときには開始信号Ｓ２を処理部１７に出力する。処理部１７は、一例として、ＣＰＵおよびメモリ（いずれも図示せず）を備え、信号発生部１１およびポンプ１４に対する制御を実行する。また、処理部１７は、上記したように圧力センサ１５と共に検出部として機能して、圧力センサ１５から出力される圧力データＤ１に基づいて、両アンテナ１２，２１の間の空隙ＳＰが袋体４によって埋められた状態を検出する。メモリには、圧力データＤ１で示される流体の圧力値と比較するためのしきい値圧が予め記憶されている。   The operation unit 16 includes a start switch (not shown) as an example, and outputs a start signal S2 to the processing unit 17 when the start switch is operated. As an example, the processing unit 17 includes a CPU and a memory (both not shown), and executes control on the signal generation unit 11 and the pump 14. Further, as described above, the processing unit 17 functions as a detection unit together with the pressure sensor 15, and the gap SP between the antennas 12, 21 is based on the pressure data D <b> 1 output from the pressure sensor 15. Detect the state filled with. In the memory, a threshold pressure for comparing with the pressure value of the fluid indicated by the pressure data D1 is stored in advance.

受電装置３は、受信アンテナ２１、第２整合部２２および整流部２３を備えて構成されている。受信アンテナ２１は、一例として送信アンテナ１２と同一のコイル形状に形成されて、送信アンテナ１２と同一のインダクタンスを有している。また、受信アンテナ２１は、送電装置２の送信アンテナ１２と電磁結合して（つまり、送信アンテナ１２によって発生させられた電磁場により）、その両端間に誘導電圧Ｖ１を発生させる。   The power receiving device 3 includes a receiving antenna 21, a second matching unit 22, and a rectifying unit 23. The receiving antenna 21 is formed in the same coil shape as the transmitting antenna 12 as an example, and has the same inductance as the transmitting antenna 12. The reception antenna 21 is electromagnetically coupled to the transmission antenna 12 of the power transmission device 2 (that is, due to an electromagnetic field generated by the transmission antenna 12), and generates an induced voltage V1 between both ends thereof.

第２整合部２２は、受信アンテナ２１と整流部２３との間に配設されて（具体的には、受信アンテナ２１と整流部２３とを接続する伝送路に介装されて）、受信アンテナ２１のインピーダンス（出力インピーダンス）と整流部２３側のインピーダンスとを整合させる。   The second matching unit 22 is disposed between the receiving antenna 21 and the rectifying unit 23 (specifically, interposed in a transmission path connecting the receiving antenna 21 and the rectifying unit 23), and the receiving antenna. The impedance (output impedance) 21 is matched with the impedance on the rectifying unit 23 side.

本例では、一例として、第２整合部２２は、図３に示すように、受信アンテナ２１に対して並列に接続された可変コンデンサ２２ａと、受信アンテナ２１に対して直列（すなわち、受信アンテナ２１および可変コンデンサ２２ａからなる並列回路に対して直列）に接続された可変コンデンサ２２ｂとを備え、第１整合部１３と同一の回路に構成されている。この構成により、第２整合部２２は、可変コンデンサ２２ａ，２２ｂの各静電容量が調整されることで、受信アンテナ２１（詳しくは、整流部２３側から見た受信アンテナ２１の出力インピーダンス）と整流部２３（詳しくは、受信アンテナ２１側から見た整流部２３の入力インピーダンス）とを整合させる。   In this example, as an example, as shown in FIG. 3, the second matching unit 22 includes a variable capacitor 22 a connected in parallel to the reception antenna 21 and a series connection to the reception antenna 21 (that is, the reception antenna 21. And a variable capacitor 22b connected in series to a parallel circuit composed of the variable capacitor 22a, and is configured in the same circuit as the first matching unit 13. With this configuration, the second matching unit 22 adjusts the capacitances of the variable capacitors 22a and 22b, so that the receiving antenna 21 (specifically, the output impedance of the receiving antenna 21 viewed from the rectifying unit 23 side) and The rectifying unit 23 (specifically, the input impedance of the rectifying unit 23 viewed from the receiving antenna 21 side) is matched.

整流部２３は、負荷（バッテリ５）に供給する電圧を生成する電圧生成部の一例であって、受信アンテナ２１に生じる誘導電圧Ｖ１を第２整合部２２を介して入力すると共に、この誘導電圧Ｖ１に基づいて、バッテリ５に供給する直流電圧Ｖｏを生成する。具体的には、整流部２３は、整流回路および平滑回路で構成されて、第２整合部２２から出力される誘導電圧（交流電圧）Ｖ１を整流・平滑して直流電圧Ｖｏを生成すると共に、生成した直流電圧Ｖｏをバッテリ５に供給（出力）する。また、整流部２３に代えて、例えば、ＡＣ−ＤＣコンバータで電圧生成部を構成することもできる。また、負荷が交流電圧の供給を受けるものである場合には、直流電圧Ｖｏを生成する上記の構成に代えて、電圧生成部としてＡＣ−ＡＣコンバータを使用することができる。   The rectification unit 23 is an example of a voltage generation unit that generates a voltage to be supplied to the load (battery 5). The rectification unit 23 inputs the induced voltage V1 generated in the reception antenna 21 via the second matching unit 22, and the induced voltage. Based on V1, DC voltage Vo supplied to the battery 5 is generated. Specifically, the rectifying unit 23 includes a rectifying circuit and a smoothing circuit, and rectifies and smoothes the induced voltage (AC voltage) V1 output from the second matching unit 22 to generate the DC voltage Vo. The generated DC voltage Vo is supplied (output) to the battery 5. Moreover, it can replace with the rectification | straightening part 23 and can comprise a voltage generation part with an AC-DC converter, for example. Further, when the load is supplied with an AC voltage, an AC-AC converter can be used as the voltage generation unit instead of the above-described configuration for generating the DC voltage Vo.

袋体４は、流体に対する密閉性に優れ、かつ可撓性を有するシート材（例えば、自動車に搭載されているエアバッグと同じシート材）を用いて形成されている。また、袋体４は、送電装置２の送信アンテナ１２と受電装置３の受信アンテナ２１とが、図１，４，５に示すように互いに対向した状態で位置しているとき（すなわち、送信アンテナ１２から受信アンテナ２１への電力の伝送が可能な位置にあるとき）に、両アンテナ１２，２１の間に形成される空隙ＳＰに配設されている。また、袋体４の膨張時の形状は特に限定されないが、両アンテナ１２，２１が対向して位置している状態において、一方のアンテナ側から他方のアンテナを見たときの袋体４の膨張時の外形が、両アンテナ１２，２１全体を含む大きさとなるように形成されている。   The bag body 4 is formed using a sheet material that is excellent in fluid tightness and flexible (for example, the same sheet material as an airbag mounted on an automobile). Further, the bag body 4 is positioned when the transmitting antenna 12 of the power transmitting device 2 and the receiving antenna 21 of the power receiving device 3 are positioned facing each other as shown in FIGS. 12 is located in a space SP where the electric power can be transmitted from the antenna 12 to the receiving antenna 21). In addition, the shape of the bag body 4 when it is inflated is not particularly limited, but the bag body 4 is inflated when the other antenna is viewed from one antenna side in a state where both the antennas 12 and 21 are opposed to each other. The outer shape at the time is formed so as to be a size including both the antennas 12 and 21 as a whole.

本例では、袋体４は、一例として図４に示すように、膨張したときの形状が筒体（この例では、各アンテナ１２，２１の平面形状に合わせて各端面が円形となる円筒体）に形成されている。また、袋体４は、膨張して筒体となったときの一方の端面（同図中の下端面）が送信アンテナ１２側に固定されている。この構成により、この袋体４は、図５に示すように、収縮状態では送信アンテナ１２側に位置しており、この状態から膨張したときには、受信アンテナ２１と対向する他方の端面（同図中の上端面）が受信アンテナ２１に徐々に接近して、最終的には図４に示すように受信アンテナ２１と当接することで、空隙ＳＰ（図４，５において一点鎖線で示される空間）を埋めることが可能となっている。なお、図示はしないが、上記の構成とは逆に、袋体４の他方の端面（同図中の上端面）を受信アンテナ２１側に固定して、一方の端面（同図中の下端面）を送信アンテナ１２に対して接離させる構成とすることもできる。   In this example, as shown in FIG. 4, as an example, the bag body 4 has a cylindrical shape when expanded (in this example, a cylindrical body whose end faces are circular in accordance with the planar shape of the antennas 12 and 21). ). Moreover, the bag body 4 is fixed to the transmitting antenna 12 side at one end surface (lower end surface in the figure) when the bag body 4 expands into a cylindrical body. With this configuration, as shown in FIG. 5, the bag body 4 is positioned on the transmitting antenna 12 side in the contracted state, and when inflated from this state, the other end surface (in FIG. ) Gradually approaches the receiving antenna 21 and finally comes into contact with the receiving antenna 21 as shown in FIG. 4, so that the gap SP (the space indicated by the one-dot chain line in FIGS. 4 and 5) is formed. It is possible to fill. Although not shown, contrary to the above configuration, the other end face (upper end face in the figure) of the bag body 4 is fixed to the receiving antenna 21 side, and one end face (lower end face in the figure). ) May be configured to be in contact with or away from the transmission antenna 12.

次に、電力伝送装置１の電力伝送動作について説明する。一例として、図６に示すように、バッテリ５の搭載された車両４１、およびこの車両４１に対する電力伝送を行う給電ステーション４２に電力伝送装置１を適用した例を挙げて説明する。この場合、電力伝送装置１を構成する受電装置３はバッテリ５と共に車両４１に搭載され、受電装置３の受信アンテナ２１は車両４１のフロアパネル（底面）４１ａに配設されている。なお、フロアパネル４１ａにおける受信アンテナ２１が配設された部位は、電磁場が通過可能な素材で形成されている。   Next, the power transmission operation of the power transmission device 1 will be described. As an example, as illustrated in FIG. 6, an example in which the power transmission device 1 is applied to a vehicle 41 on which a battery 5 is mounted and a power supply station 42 that performs power transmission to the vehicle 41 will be described. In this case, the power receiving device 3 constituting the power transmission device 1 is mounted on the vehicle 41 together with the battery 5, and the receiving antenna 21 of the power receiving device 3 is disposed on the floor panel (bottom surface) 41 a of the vehicle 41. In addition, the site | part in which the receiving antenna 21 is arrange | positioned in the floor panel 41a is formed with the raw material which an electromagnetic field can pass.

一方、送電装置２は、同図に示すように、車両４１に対する給電を行う給電ステーション４２に設置されている。具体的には、送電装置２の構成要素のうち、送信アンテナ１２については、給電ステーション４２の路面４３に埋設されている。また、送電装置２の送信アンテナ１２を除く他の構成要素については、給電ステーション４２の路面４３上に設置された制御盤４４内に配設されている。袋体４は、下端面が送信アンテナ１２の埋設位置における路面４３上に固定した状態で配設されている。また、送信アンテナ１２は、制御盤４４内の第１整合部１３（図６では図示せず）と不図示の伝送路を介して接続され、袋体４は、制御盤４４内のポンプ１４（図６では図示せず）と不図示の管路１８を介して接続されている。   On the other hand, the power transmission device 2 is installed in a power supply station 42 that supplies power to the vehicle 41 as shown in FIG. Specifically, among the components of the power transmission device 2, the transmission antenna 12 is embedded in the road surface 43 of the power supply station 42. Further, other components except the transmission antenna 12 of the power transmission device 2 are arranged in a control panel 44 installed on the road surface 43 of the power supply station 42. The bag body 4 is disposed in a state where the lower end surface is fixed on the road surface 43 at the embedded position of the transmission antenna 12. The transmitting antenna 12 is connected to the first matching section 13 (not shown in FIG. 6) in the control panel 44 via a transmission path (not shown), and the bag 4 is connected to the pump 14 ( (Not shown in FIG. 6) and a pipe 18 (not shown).

また、送電装置２の第１整合部１３および受電装置３の第２整合部２２については、車両４１が給電ステーション４２の給電位置（図６に示すように、送信アンテナ１２と受信アンテナ２１とが互いに対向する位置）に駐車された状態において、信号発生部１１と送信アンテナ１２とが整合状態となり、受信アンテナ２１と整流部２３とが整合状態となるように、予め調整されているものとする。   In addition, for the first matching unit 13 of the power transmission device 2 and the second matching unit 22 of the power receiving device 3, the vehicle 41 has a power feeding position of the power feeding station 42 (as shown in FIG. It is assumed that the signal generator 11 and the transmission antenna 12 are in a matched state and the reception antenna 21 and the rectifying unit 23 are in a matched state in a state where they are parked at positions facing each other). .

まず、図６に示すように、車両４１が収縮状態の袋体４を跨ぐようにして給電ステーション４２の給電位置に駐車されている状態において、制御盤４４に配設された操作部１６の開始スイッチに対する操作が行われると、送電装置２では、操作部１６が、開始信号Ｓ２を処理部１７に出力し、処理部１７は、この開始信号Ｓ２を入力して車両４１への充電処理を開始する。   First, as shown in FIG. 6, in a state where the vehicle 41 is parked at the power supply position of the power supply station 42 so as to straddle the contracted bag body 4, the operation unit 16 provided on the control panel 44 is started. When an operation is performed on the switch, in the power transmission device 2, the operation unit 16 outputs a start signal S2 to the processing unit 17, and the processing unit 17 inputs the start signal S2 and starts charging the vehicle 41. To do.

この充電処理では、処理部１７は、最初に、管路１８を介して袋体４内に流体を供給させる制御をポンプ１４に対して実行する。これにより、袋体４は、内部に流体が供給されることで膨張を開始し、これに伴い上端面が車両４１のフロアパネル４１ａに向けて上昇する。また、処理部１７は、圧力センサ１５から出力される圧力データＤ１に基づいて、袋体４内の流体の圧力についての測定を開始する。   In this charging process, the processing unit 17 first performs control on the pump 14 to supply fluid into the bag body 4 via the pipe line 18. Thereby, the bag body 4 starts to expand when the fluid is supplied to the inside thereof, and the upper end surface thereof rises toward the floor panel 41 a of the vehicle 41. Further, the processing unit 17 starts measuring the pressure of the fluid in the bag body 4 based on the pressure data D1 output from the pressure sensor 15.

袋体４の膨張に伴い、フロアパネル４１ａに向けて上昇している袋体４の上端面は、最終的には車両４１のフロアパネル４１ａと当接する。袋体４では、上端面とフロアパネル４１ａとの当接後、さらに内部に流体が供給され続けることで、内部における流体の圧力が上昇する。処理部１７は、このようにして上昇する袋体４内の流体の圧力値を圧力センサ１５から出力される圧力データＤ１に基づいて検出すると共に、メモリから読み出したしきい値圧と比較する。処理部１７は、この比較の結果、袋体４内の流体の圧力値がしきい値圧以上となったときに、袋体４の上端面が車両４１のフロアパネル４１ａと完全に当接したと判別し、袋体４内への流体の供給を停止させる制御をポンプ１４に対して実行する。これにより、送電装置２の送信アンテナ１２と受電装置３の受信アンテナ２１との間の空隙（本例では、送信アンテナ１２が埋設されている路面４３と、受信アンテナ２１が配設されている車両４１のフロアパネル４１ａとの間の空隙ＳＰ（図６において一点鎖線で示されている領域））が、図７に示すように、袋体４によって埋められた状態となる。   As the bag body 4 expands, the upper end surface of the bag body 4 rising toward the floor panel 41 a finally comes into contact with the floor panel 41 a of the vehicle 41. In the bag body 4, after the upper end surface and the floor panel 41 a are in contact with each other, the fluid continues to be supplied to the inside, thereby increasing the fluid pressure inside. The processing unit 17 detects the pressure value of the fluid in the bag body 4 rising in this way based on the pressure data D1 output from the pressure sensor 15, and compares it with the threshold pressure read from the memory. As a result of this comparison, when the pressure value of the fluid in the bag body 4 is equal to or higher than the threshold pressure, the processing unit 17 completely contacts the floor panel 41a of the vehicle 41 with the upper end surface of the bag body 4 And control for stopping the supply of the fluid into the bag body 4 is performed on the pump 14. Thus, a gap between the transmission antenna 12 of the power transmission device 2 and the reception antenna 21 of the power reception device 3 (in this example, a road surface 43 in which the transmission antenna 12 is embedded and a vehicle in which the reception antenna 21 is disposed. As shown in FIG. 7, the space SP between the 41 floor panels 41 a and the space SP (the region indicated by the alternate long and short dash line in FIG. 6) is filled with the bag body 4.

次いで、処理部１７は、送電装置２の信号発生部１１に対して、交流信号Ｓ１を規定の送信電力で出力させる。これにより、送電装置２が、受電装置３に対して伝送を開始し、車両４１に搭載された受電装置３は、この送電電力の受電を開始すると共に、この送電電力を直流電圧Ｖｏに変換してバッテリ５に供給する。これにより、バッテリ５に対する充電が行われる。   Next, the processing unit 17 causes the signal generation unit 11 of the power transmission device 2 to output the AC signal S1 with a specified transmission power. Thereby, the power transmission device 2 starts transmission to the power reception device 3, and the power reception device 3 mounted on the vehicle 41 starts receiving the transmission power and converts the transmission power to the DC voltage Vo. Supplied to the battery 5. Thereby, the battery 5 is charged.

この送電装置２から受電装置３への電力の伝送中（バッテリ５に対する充電中）において、電磁場が発生している送電装置２の送信アンテナ１２と受電装置３の受信アンテナ２１との間の空隙ＳＰが袋体４によって埋められているため、この袋体４により、送信アンテナ１２と受信アンテナ２１との間への物や人の進入が確実に阻止されている。このため、送信アンテナ１２と受信アンテナ２１との間への物や人の進入によって電磁場が遮蔽されることに起因した、送電電力の伝送効率の低下や、また送信アンテナ１２と受信アンテナ２１との間への物や人の進入による物損事故、火災事故および傷害事故など（以下、「物損事故等）の発生が確実に回避されている。   The gap SP between the transmission antenna 12 of the power transmission device 2 and the reception antenna 21 of the power reception device 3 in which an electromagnetic field is generated during transmission of power from the power transmission device 2 to the power reception device 3 (charging the battery 5). Is buried by the bag body 4, the bag body 4 reliably prevents an object or a person from entering between the transmitting antenna 12 and the receiving antenna 21. For this reason, a decrease in transmission efficiency of transmission power due to the electromagnetic field being shielded by the entry of an object or a person between the transmission antenna 12 and the reception antenna 21, or between the transmission antenna 12 and the reception antenna 21. Occurrence of property damage accidents, fire accidents, injury accidents (hereinafter referred to as “material damage accidents”, etc.) due to the entry of objects or people in between.

電力伝送装置１による電力伝送動作を停止させるとき（車両４１のバッテリ５への充電を停止させるとき）には、操作部１６の開始スイッチを再度操作する。電力伝送装置１では、この操作に対して、操作部１６が処理部１７に対して開始信号Ｓ２を出力する。処理部１７は、電力伝送動作中（信号発生部１１に対して交流信号Ｓ１を出力させている状態のとき）に、この開始信号Ｓ２を入力したときには、停止指示が入力されたと判別して、送電装置２の信号発生部１１に対して、交流信号Ｓ１の出力を停止させる。これにより、送電装置２から受電装置３への送電電力の伝送が停止する。   When the power transmission operation by the power transmission device 1 is stopped (when charging of the battery 5 of the vehicle 41 is stopped), the start switch of the operation unit 16 is operated again. In the power transmission device 1, the operation unit 16 outputs a start signal S <b> 2 to the processing unit 17 in response to this operation. The processing unit 17 determines that a stop instruction has been input when the start signal S2 is input during the power transmission operation (when the AC signal S1 is being output to the signal generation unit 11). The signal generator 11 of the power transmission device 2 stops the output of the AC signal S1. Thereby, transmission of the transmitted power from the power transmission device 2 to the power reception device 3 is stopped.

次いで、処理部１７は、袋体４内の流体を管路１８を介して排出させる制御をポンプ１４に対して実行する。これにより、膨張した状態の袋体４が徐々に収縮を開始し、これに伴い、車両４１のフロアパネル４１ａに当接していた上端面が徐々に下降する（フロアパネル４１ａから離反する）。処理部１７は、袋体４の上端面が十分に下降した状態（収縮状態）となったときに（一例として、ポンプ１４に対する流体の排出制御を予め規定された時間実行した後に）、ポンプ１４に対するこの排出制御を停止させる。これにより、車両４１の給電ステーション４２からの移動が可能となり、車両４１に対する給電が完了する。   Next, the processing unit 17 executes control for the pump 14 to discharge the fluid in the bag body 4 through the pipe line 18. As a result, the inflated bag body 4 gradually starts to contract, and accordingly, the upper end surface that is in contact with the floor panel 41a of the vehicle 41 gradually falls (separates from the floor panel 41a). When the upper end surface of the bag body 4 is sufficiently lowered (contracted) (as an example, after the discharge control of the fluid to the pump 14 is executed for a predetermined time), the processing unit 17 performs the pump 14. This discharge control for is stopped. As a result, the vehicle 41 can be moved from the power supply station 42 and the power supply to the vehicle 41 is completed.

このように、この電力伝送装置１では、流体の供給・排出によって膨張・収縮変形可能な袋体４が送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰに配設されて、この袋体４が、ポンプ１４から流体が供給されたときに、この空隙ＳＰを埋める状態に膨張変形する。   As described above, in the power transmission device 1, the bag body 4 that can be expanded and contracted by supplying and discharging fluid is disposed in the gap SP between the transmission antenna 12 and the reception antenna 21. However, when the fluid is supplied from the pump 14, it expands and deforms to fill the gap SP.

したがって、この電力伝送装置１によれば、送電装置２から受電装置３に対する電力伝送の際に（送信アンテナ１２で発生した電磁場によって受信アンテナ２１が誘導電圧Ｖ１を発生させているときに）、この袋体４を膨張させて空隙ＳＰを埋めることができるため、電磁場が発生している送信アンテナ１２と受信アンテナ２１との間への物や人の進入を確実に阻止することができ、この物や人の進入に起因した送電電力の伝送効率の低下を防止することができると共に、物損事故等の発生を確実に防止して安全性を向上させることができる。   Therefore, according to the power transmission device 1, when power is transmitted from the power transmission device 2 to the power reception device 3 (when the reception antenna 21 generates the induced voltage V1 due to the electromagnetic field generated by the transmission antenna 12), Since the bag body 4 can be expanded to fill the gap SP, it is possible to reliably prevent an object or person from entering between the transmitting antenna 12 and the receiving antenna 21 where an electromagnetic field is generated. In addition, it is possible to prevent a reduction in transmission efficiency of transmitted power due to the entry of people and people, and it is possible to reliably prevent occurrence of property damage accidents and improve safety.

また、この電力伝送装置１によれば、圧力センサ１５および処理部１７が検出部として機能して、袋体４にポンプ１４で流体を供給している状態において、袋体４によって空隙ＳＰが埋められた状態を検出したときに、ポンプ１４による流体の袋体４への供給を停止させることができるため、袋体４内の流体の圧力が袋体４の許容圧力を超える事態を確実に回避することができ、袋体４の破損やポンプ１４の故障などの発生を確実に防止することができる。また、この構成によれば、後述する他の構成を採用して検出部とする構成と比較して、袋体４内の流体圧を検出するという簡易な構成でありながら、袋体４によって空隙ＳＰが埋められた状態を確実に検出できるため、装置コストの上昇を最小限に抑えることができる。   Further, according to the power transmission device 1, the gap SP is filled by the bag body 4 in a state where the pressure sensor 15 and the processing unit 17 function as a detection unit and fluid is supplied to the bag body 4 by the pump 14. When the detected state is detected, the supply of the fluid to the bag body 4 by the pump 14 can be stopped, so that the situation where the pressure of the fluid in the bag body 4 exceeds the allowable pressure of the bag body 4 is surely avoided. Therefore, it is possible to reliably prevent occurrence of damage to the bag body 4 or failure of the pump 14. In addition, according to this configuration, compared to a configuration in which another configuration described later is employed and the detection unit is used, the fluid pressure in the bag body 4 is detected, but the bag body 4 allows the air gap to be detected. Since it is possible to reliably detect the state in which the SP is buried, an increase in apparatus cost can be minimized.

なお、袋体４によって送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰが埋められた状態を検出する構成としては、上記した圧力センサ１５を用いる構成以外に種々の構成を採用することができる。例えば、車両４１のフロアパネル４１ａにおける袋体４が当接する部位に接触センサを配置して、袋体４とフロアパネル４１ａとの当接状態をこの接触センサが検出したときに、車両４１側から給電ステーション４２側の処理部１７にその旨を伝送する構成を採用することができる。   Various configurations other than the configuration using the pressure sensor 15 described above can be adopted as the configuration for detecting the state in which the gap SP between the transmission antenna 12 and the reception antenna 21 is filled with the bag 4. . For example, when a contact sensor is disposed at a portion of the floor panel 41a of the vehicle 41 where the bag body 4 comes into contact, and the contact sensor detects the contact state between the bag body 4 and the floor panel 41a, the vehicle 41 side A configuration for transmitting the fact to the processing unit 17 on the power feeding station 42 side can be adopted.

また、図８に示すように、給電ステーション４２に駐車される車両４１の一方の側面側（例えば運転席側ドア）に対向する位置に発光装置５１を配設すると共に、他方の側面側（助手席側ドア）に対向する位置に発光装置５１からの光Ｌを受光する受光装置５２を配置し、かつ光Ｌの光路の路面４３からの高さを車両４１のフロアパネル４１ａの高さよりも若干低く規定する構成（光学センサを使用する構成）を採用することもできる。この構成では、膨張変形した袋体４の上部が、発光装置５１から受光装置５２への光Ｌを遮断するため、受光装置５２からの出力信号Ｓ３を処理部１７に出力することにより、処理部１７が、この出力信号Ｓ３のレベル変化（光Ｌの受光時のレベルと非受光時のレベルとの差）に基づいて、袋体４によって空隙ＳＰが埋められた状態となったことを検出することができる。   In addition, as shown in FIG. 8, the light emitting device 51 is disposed at a position facing one side surface (for example, the driver's seat side door) of the vehicle 41 parked at the power supply station 42 and the other side surface side (assistant). The light receiving device 52 that receives the light L from the light emitting device 51 is disposed at a position facing the seat-side door), and the height of the light L from the road surface 43 is slightly higher than the height of the floor panel 41a of the vehicle 41. It is also possible to adopt a low-definition configuration (configuration using an optical sensor). In this configuration, since the upper part of the inflated and deformed bag body 4 blocks the light L from the light emitting device 51 to the light receiving device 52, the output signal S3 from the light receiving device 52 is output to the processing unit 17, whereby the processing unit 17 detects that the gap SP is filled with the bag 4 based on the level change of the output signal S3 (difference between the level when the light L is received and the level when the light L is not received). be able to.

また、送電装置２と受電装置３との間で送電電力の伝送が行われていない状態においても、袋体４の収縮変形時における送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰ内に異物が進入している状態（異物が存在している状態）は、膨張変形した袋体４がこの異物によって損傷したり、逆に、膨張変形した袋体４によって異物が損傷するといった不具合の発生要因になるため、好ましくない。このため、袋体４が収縮状態のときに空隙ＳＰ内に異物が進入しているか否かを検出して、異物の進入が検出されないときに、袋体４を膨張変形させる構成を採用するのが好ましい。この空隙ＳＰ内への異物の進入の有無を検出する検出部の構成としては、例えば、上記した図８に示す構成（発光装置５１および受光装置５２を備えた構成）を採用することができる。   Further, even in a state where transmission power is not transmitted between the power transmission device 2 and the power reception device 3, foreign matter is present in the gap SP between the transmission antenna 12 and the reception antenna 21 when the bag body 4 is contracted and deformed. Is a state in which the bag 4 is inflated and deformed (the state in which foreign matter is present) is damaged by the foreign matter, or conversely, the foreign matter is damaged by the inflated and deformed bag 4 Therefore, it is not preferable. For this reason, when the bag body 4 is in the contracted state, it is detected whether or not a foreign object has entered the gap SP, and when the entry of the foreign object is not detected, the structure in which the bag body 4 is inflated and deformed is adopted. Is preferred. As the configuration of the detection unit that detects the presence or absence of the entry of foreign matter into the gap SP, for example, the configuration shown in FIG. 8 (configuration including the light emitting device 51 and the light receiving device 52) can be employed.

この構成では、袋体４が収縮状態のときに空隙ＳＰ内に異物が進入しているときには、発光装置５１からの光Ｌが異物によって遮光され、一方、異物が進入していないときには、光Ｌが受光装置５２に入光する。このため、受光装置５２からの出力信号Ｓ３を処理部１７に出力することにより、処理部１７がこの出力信号Ｓ３のレベル変化（光Ｌの受光時のレベルと非受光時のレベルとの差）に基づいて、空隙ＳＰ内に異物が進入しているか否かを検出することができ、空隙ＳＰ内への異物の進入がないときに、ポンプ１４に対する制御を実行して、袋体４を膨張変形させることができる。なお、この発光装置５１および受光装置５２を備えた構成に代えて、車両４１のフロアパネル４１ａと収縮状態の袋体４との間の空隙ＳＰを撮像するカメラを検出部として使用する構成を採用してもよいのは勿論である。   In this configuration, when foreign matter enters the gap SP when the bag body 4 is in the contracted state, the light L from the light emitting device 51 is shielded by the foreign matter, whereas when no foreign matter enters, the light L Enters the light receiving device 52. Therefore, by outputting the output signal S3 from the light receiving device 52 to the processing unit 17, the processing unit 17 changes the level of the output signal S3 (difference between the level when the light L is received and the level when the light L is not received). Based on the above, it is possible to detect whether or not a foreign substance has entered the gap SP. When there is no foreign substance entering the gap SP, the pump 14 is controlled to inflate the bag body 4. Can be deformed. Instead of the configuration provided with the light emitting device 51 and the light receiving device 52, a configuration is adopted in which a camera that images the gap SP between the floor panel 41a of the vehicle 41 and the bag body 4 in the contracted state is used as the detection unit. Of course, you may do.

また、この電力伝送装置１では、受信アンテナ２１は、送電電力の伝送を受ける車両４１のフロアパネル４１ａに配設され、送信アンテナ１２は、車両４１が送電電力の伝送を受ける給電位置における路面４３に配設され、袋体４は、送信アンテナ１２が配設された路面４３上に設置されると共に、送信アンテナ１２と受信アンテナ２１とが対向する状態で給電位置に車両４１が停止しているときに、送信アンテナ１２が設置された路面４３およびフロアパネル４１ａの双方と接触する状態に膨張変形する。   In this power transmission device 1, the reception antenna 21 is disposed on the floor panel 41 a of the vehicle 41 that receives transmission power, and the transmission antenna 12 is a road surface 43 at a feeding position where the vehicle 41 receives transmission power. The bag body 4 is installed on the road surface 43 on which the transmission antenna 12 is disposed, and the vehicle 41 is stopped at the power feeding position in a state where the transmission antenna 12 and the reception antenna 21 face each other. Sometimes, it expands and deforms to contact with both the road surface 43 on which the transmission antenna 12 is installed and the floor panel 41a.

したがって、この電力伝送装置１によれば、車両４１に対して、人や物が入り込み難いフロアパネル４１ａ側から給電することができるため、送信アンテナ１２が設置された路面４３およびフロアパネル４１ａの双方と接触する状態に膨張変形した袋体４によって送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰを埋めることができることと相まって、送信アンテナ１２と受信アンテナ２１との間への物や人の進入を一層確実に阻止することができる（安全性を向上させることができる）。なお、受信アンテナ２１を車両４１の側面側、前面側、後面側および上面側のいずれかの位置に配設すると共に、この車両４１における受信アンテナ２１の配設位置に対向する位置に送信アンテナ１２を配設する構成を採用することもできる。   Therefore, according to this power transmission device 1, since power can be supplied to the vehicle 41 from the side of the floor panel 41a where it is difficult for people and objects to enter, both the road surface 43 on which the transmission antenna 12 is installed and the floor panel 41a are provided. In combination with the fact that the gap SP between the transmitting antenna 12 and the receiving antenna 21 can be filled by the bag body 4 inflated and deformed so as to come into contact with the antenna, an object or person enters between the transmitting antenna 12 and the receiving antenna 21. Can be more reliably prevented (safety can be improved). The reception antenna 21 is disposed at any position on the side surface, front surface side, rear surface side, and top surface side of the vehicle 41, and the transmission antenna 12 is disposed at a position opposite to the position where the reception antenna 21 is disposed on the vehicle 41. The structure which arrange | positions can also be employ | adopted.

また、送信アンテナ１２が設置された路面４３およびフロアパネル４１ａの双方と接触する状態に袋体４を膨張変形させる構成においては、袋体４の素材の強度を高めると共に、膨張変形時の上下方向の変形量を増加させることで、図９に示すように、袋体４をいわゆるジャッキ（エアジャッキ装置）としても機能させることもできる。この構成によれば、給電状態において、膨張変形した袋体４がジャッキとして機能して車両４１を路面４３から持ち上げた状態に維持することができるため、給電中に誤って車両４１を移動させるといったことを防止することができる。   Further, in the configuration in which the bag body 4 is inflated and deformed so as to be in contact with both the road surface 43 on which the transmission antenna 12 is installed and the floor panel 41a, the strength of the material of the bag body 4 is increased and the vertical direction at the time of inflating deformation is increased. By increasing the amount of deformation, the bag body 4 can also function as a so-called jack (air jack device) as shown in FIG. According to this configuration, since the inflated and deformed bag body 4 functions as a jack and can maintain the vehicle 41 lifted from the road surface 43 in the power supply state, the vehicle 41 is erroneously moved during power supply. This can be prevented.

また、上記したように、送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰを膨張変形した袋体４で埋める構成においては、袋体４を中心とする空間に電磁場が形成される。したがって、この電磁場の電力伝送装置１の外部への漏洩を低減するのが好ましい。例えば、図１０に示す袋体４Ａのように、膨張変形時の形状が筒体となり、一方の端面が送信アンテナ１２と対向し、他方の端面が受信アンテナ２１と対向して、送信アンテナ１２と受信アンテナ２１との間の空隙ＳＰを埋める構成の袋体では、送信アンテナ１２と対向する一方の端面（送信アンテナ１２における受信アンテナ２１との対向面を覆う部位）および受信アンテナ２１と対向する他方の端面（受信アンテナ２１における送信アンテナ１２との対向面を覆う部位）を除く部位全体（この袋体４Ａでは、格子縞を付した側面全体）を電磁場の遮蔽が可能な材質で形成するのが好ましい。この構成により、袋体４内に発生する電磁場の袋体４の側方から外部への漏洩を低減することができる。   As described above, in the configuration in which the gap SP between the transmission antenna 12 and the reception antenna 21 is filled with the inflated and deformed bag body 4, an electromagnetic field is formed in the space around the bag body 4. Therefore, it is preferable to reduce leakage of the electromagnetic field to the outside of the power transmission device 1. For example, like the bag body 4A shown in FIG. 10, the shape at the time of expansion and deformation becomes a cylindrical body, one end surface faces the transmission antenna 12, and the other end surface faces the reception antenna 21, In the bag body configured to fill the gap SP with the receiving antenna 21, one end face facing the transmitting antenna 12 (a part covering the facing face of the transmitting antenna 12 facing the receiving antenna 21) and the other facing the receiving antenna 21. It is preferable to form the whole part (the whole side face with a checkered pattern in this bag body 4A) except for the end face (the part of the receiving antenna 21 that covers the surface facing the transmitting antenna 12) with a material capable of shielding the electromagnetic field. . With this configuration, leakage of the electromagnetic field generated in the bag body 4 from the side of the bag body 4 to the outside can be reduced.

なお、バッテリ５の搭載された車両４１、およびこの車両４１に対する電力伝送を行う給電ステーション４２に電力伝送装置１を適用した例について上記したが、これに限定されず、この電力伝送装置１については、互いに離間して配置された送電装置２と受電装置３との間で電力の伝送を行う様々な用途に適用することができる。また、膨張変形時の袋体４の形状を筒体とした例について上記したが、膨張変形時の袋体４の形状は筒体に限定されず、例えば球形など種々の形状とすることができる。   Although the example in which the power transmission device 1 is applied to the vehicle 41 on which the battery 5 is mounted and the power supply station 42 that performs power transmission to the vehicle 41 has been described above, the present invention is not limited thereto. The present invention can be applied to various uses for transmitting power between the power transmitting device 2 and the power receiving device 3 that are arranged apart from each other. In addition, the example in which the shape of the bag 4 at the time of expansion / deformation is a cylinder has been described above, but the shape of the bag 4 at the time of expansion / deformation is not limited to a cylinder, and may be various shapes such as a spherical shape. .

１ 電力伝送装置
４ 袋体
１２ 送信アンテナ
１４ ポンプ
１５ 圧力センサ
１７ 処理部
２１ 受信アンテナ
４１ 車両
４１ａ フロアパネル
５１ 発光装置
５２ 受光装置
Ｓ１ 交流信号
ＳＰ 空隙
Ｖ１ 誘導電圧 DESCRIPTION OF SYMBOLS 1 Power transmission device 4 Bag 12 Transmission antenna 14 Pump 15 Pressure sensor 17 Processing part 21 Reception antenna 41 Vehicle 41a Floor panel 51 Light-emitting device 52 Light-receiving device S1 AC signal SP Space | gap V1 Induction voltage

Claims (6)

交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、
前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、
前記袋体に対する前記流体の供給・排出を実行するポンプと、
検出部とを備え、
前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形し、
前記検出部は、膨張変形した前記袋体によって前記空隙が埋められた状態を検出し、
前記ポンプは、前記袋体に前記流体を供給している状態において、前記袋体によって前記空隙が埋められた状態を前記検出部が検出したときに、前記流体の前記袋体への供給を停止する非接触型電力伝送装置。 A transmission antenna that generates an electromagnetic field by receiving an AC signal and a receiving antenna that generates an induced voltage by the electromagnetic field generated by the transmission antenna at a position spaced apart from the transmission antenna includes a contactless power transmission A non-contact power transmission device,
A bag that is disposed between the transmitting antenna and the receiving antenna and that can be expanded and contracted by supplying and discharging fluid;
A pump for supplying and discharging the fluid to and from the bag;
A detection unit,
When the fluid is supplied from the pump, the bag body expands and deforms to fill a gap between the transmitting antenna and the receiving antenna,
The detection unit detects a state in which the gap is filled with the inflated and deformed bag body,
The pump stops supplying the fluid to the bag when the detection unit detects that the gap is filled with the bag while the fluid is being supplied to the bag. Non-contact power transmission device. 前記検出部は、前記袋体内の前記流体の流体圧を検出する圧力センサを備え、当該検出された前記流体圧が予め規定されたしきい値圧以上となったときに、前記袋体によって前記空隙が埋められた状態を検出する請求項１記載の非接触型電力伝送装置。   The detection unit includes a pressure sensor that detects a fluid pressure of the fluid in the bag body, and when the detected fluid pressure is equal to or higher than a predetermined threshold pressure, The contactless power transmission device according to claim 1, wherein a state in which the gap is filled is detected. 交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、
前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、
前記袋体に対する前記流体の供給・排出を実行するポンプと、
光学センサとを備え、
前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形し、
前記光学センサは、前記袋体が収縮変形している状態での前記空隙内における異物の有無を検出し、
前記ポンプは、前記光学センサによって前記空隙内に前記異物が存在しないと検出されたときに、前記流体の前記袋体への供給を開始する非接触型電力伝送装置。 A transmission antenna that generates an electromagnetic field by receiving an AC signal and a receiving antenna that generates an induced voltage by the electromagnetic field generated by the transmission antenna at a position spaced apart from the transmission antenna includes a contactless power transmission A non-contact power transmission device,
A bag that is disposed between the transmitting antenna and the receiving antenna and that can be expanded and contracted by supplying and discharging fluid;
A pump for supplying and discharging the fluid to and from the bag;
And an optical science sensor,
When the fluid is supplied from the pump, the bag body expands and deforms to fill a gap between the transmitting antenna and the receiving antenna,
The optical sensor detects the presence or absence of foreign matter in the gap in a state where the bag body is contracted and deformed,
The pump is a non-contact power transmission device that starts supplying the fluid to the bag body when the optical sensor detects that the foreign matter is not present in the gap. 交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、
前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、
前記袋体に対する前記流体の供給・排出を実行するポンプとを備え、
前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形すると共に、膨張変形した状態において前記送信アンテナおよび前記受信アンテナの各対向面を覆う部位を除く部位全体が前記電磁場を遮蔽可能な材質で形成されている非接触型電力伝送装置。 A transmission antenna that generates an electromagnetic field by receiving an AC signal and a receiving antenna that generates an induced voltage by the electromagnetic field generated by the transmission antenna at a position spaced apart from the transmission antenna includes a contactless power transmission A non-contact power transmission device,
A bag that is disposed between the transmitting antenna and the receiving antenna and that can be expanded and contracted by supplying and discharging fluid;
A pump for supplying and discharging the fluid to and from the bag body,
When the fluid is supplied from the pump, the bag body is inflated and deformed to fill a gap between the transmitting antenna and the receiving antenna, and in the inflated and deformed state, each of the transmitting antenna and the receiving antenna A non-contact power transmission device in which the entire part excluding the part covering the opposing surface is formed of a material capable of shielding the electromagnetic field. 交流信号の供給を受けて電磁場を発生させる送信アンテナと、前記送信アンテナから離間した位置において前記送信アンテナで発生した前記電磁場によって誘導電圧を発生させる受信アンテナとを備えて非接触で電力を伝送する非接触型電力伝送装置であって、
前記送信アンテナと前記受信アンテナとの間に配設されると共に流体の供給・排出によって膨張・収縮変形可能な袋体と、
前記袋体に対する前記流体の供給・排出を実行するポンプとを備え、
前記受信アンテナは、前記電力の伝送を受ける車両のフロアパネルに配設され、
前記送信アンテナは、前記車両が前記電力の伝送を受ける給電位置における路面に配設され、
前記袋体は、前記ポンプから前記流体が供給されたときに、前記送信アンテナおよび前記受信アンテナ間の空隙を埋める状態に膨張変形し、前記送信アンテナが配設された前記路面上に設置されると共に、前記送信アンテナと前記受信アンテナとが対向する状態で前記給電位置に前記車両が停止しているときに、当該送信アンテナが設置された前記路面および前記フロアパネルの双方と接触する状態に膨張変形する非接触型電力伝送装置。 A transmission antenna that generates an electromagnetic field by receiving an AC signal and a receiving antenna that generates an induced voltage by the electromagnetic field generated by the transmission antenna at a position spaced apart from the transmission antenna includes a contactless power transmission A non-contact power transmission device,
A bag that is disposed between the transmitting antenna and the receiving antenna and that can be expanded and contracted by supplying and discharging fluid;
A pump for supplying and discharging the fluid to and from the bag body,
The receiving antenna is disposed on a floor panel of a vehicle that receives the power transmission,
The transmitting antenna is disposed on a road surface at a feeding position where the vehicle receives the transmission of the power,
When the fluid is supplied from the pump, the bag body expands and deforms so as to fill a gap between the transmission antenna and the reception antenna, and is installed on the road surface on which the transmission antenna is disposed. In addition, when the vehicle is stopped at the power feeding position in a state where the transmission antenna and the reception antenna face each other, the vehicle expands to contact with both the road surface on which the transmission antenna is installed and the floor panel. A non-contact power transmission device that deforms. 前記袋体は、膨張変形したときに前記車両を前記路面から持ち上げるジャッキとして機能する請求項５記載の非接触型電力伝送装置。   The contactless power transmission device according to claim 5, wherein the bag body functions as a jack that lifts the vehicle from the road surface when the bag body is inflated and deformed.
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