JP2020072611A - Vehicle charging system - Google Patents

Vehicle charging system Download PDF

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JP2020072611A
JP2020072611A JP2018207146A JP2018207146A JP2020072611A JP 2020072611 A JP2020072611 A JP 2020072611A JP 2018207146 A JP2018207146 A JP 2018207146A JP 2018207146 A JP2018207146 A JP 2018207146A JP 2020072611 A JP2020072611 A JP 2020072611A
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unit
electrode
vehicle
electrode plates
power receiving
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ひとみ 大熊
Hitomi Okuma
ひとみ 大熊
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Yazaki Corp
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Yazaki Corp
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

To provide a vehicle charging system capable of securing contact between an electrode on a vehicle side and an electrode on a charger side concerning variation in a vehicle height.SOLUTION: A vehicle charging system 1 includes: a charger 2; and a power reception section 11 arranged in a vehicle 100. The charger 2 includes: a power feeding section 31; a device side lifting section 34 for lifting the power feeding section 31 to a connection position so as to connect the power feeding section 31 to the power reception section 11; a charging section 35 for performing charging via the power feeding section 31 and the power reception section 11; and a control section 37 for controlling the charging section 35. The power reception section 11 includes a pair of electrode plates 12, 13 arranged to be opposed at an interval in a direction orthogonal to a vertical direction. The power feeding section 31 includes a convex electrode 33 projected in a projecting direction toward the pair of electrode plates 12, 13 from a main body 32 and inserted between the pair of electrode plates 12, 13 at a connection position. The control section 37 allows the charging section 35 to start charging in a state where the convex electrode 33 is connected to at least one of the pair of electrode plates 12, 13.SELECTED DRAWING: Figure 2

Description

本発明は、車両用充電システムに関する。   The present invention relates to a vehicle charging system.

従来、電気自動車(EV)等に搭載された受電側電極に対して、無人または自動で給電側電極を嵌合させて充電を行う充電装置がある。例えば、特許文献1では、両面に個別に受電電極が配置されたプレートを有する自走式ロボットと、対向する両面に個別に給電電極が配置された溝を有する充電器とを備え、プレートが溝に案内され、プレート側の受電電極が溝側の給電電極に電気的に接続される自走式ロボットの充電システムが提案されている。   2. Description of the Related Art Conventionally, there is a charging device that charges a power receiving side electrode mounted on an electric vehicle (EV) or the like by unmanned or automatically fitting the power feeding side electrode. For example, in Patent Document 1, a self-propelled robot having a plate in which power receiving electrodes are individually arranged on both surfaces, and a charger having a groove in which power feeding electrodes are individually arranged on opposite surfaces are provided, and the plate has a groove. A charging system for a self-propelled robot is proposed in which the power receiving electrode on the plate side is electrically connected to the power feeding electrode on the groove side.

特開平2−303303号公報JP-A-2-303303

ところで、車両には、車種、メーカー間、タイヤ径等の構造上の差や、乗員、積載物等の状況の差によって車高にばらつきが生じる。車高のばらつきが大きいと、車両の底部に設けられた電極に対して、地面に配置された充電装置側の電極が接触できず、車両に対して充電装置が充電を行うことができないおそれがある。   By the way, the vehicle height varies depending on the vehicle type, the manufacturer, the structural difference such as the tire diameter, and the difference in the condition of the occupant, the load, and the like. If there is a large variation in vehicle height, the electrodes on the charging device side placed on the ground cannot contact the electrodes provided on the bottom of the vehicle, and the charging device may not be able to charge the vehicle. is there.

本発明は、車高のばらつきに対して車両側の電極と充電装置側の電極との接触を確保することができる車両用充電システムを提供することを目的とする。   SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle charging system capable of ensuring contact between an electrode on the vehicle side and an electrode on the charging device side against variations in vehicle height.

上記目的を達成するために、本発明に係る車両用充電システムは、充電装置と、車両に設けられた受電部と、を備え、前記充電装置は、前記受電部と接続する給電部と、前記車両が停止した状態で、前記給電部を待機位置から接続位置まで上昇させることで前記給電部を前記受電部に対して接続させる昇降部と、前記受電部と前記給電部とが接続した接続状態で、前記車両に対して前記給電部及び前記受電部を介して充電を行う充電部と、前記充電部を制御する制御部と、を備え、前記受電部は、上下方向と直交する方向に間隔をおいて対向して配置された一対の電極板を有し、前記給電部は、絶縁性を有する本体部と、前記本体部から前記一対の電極板に向かう突出方向に突出し、前記接続位置において、前記一対の電極板間に挿入され、かつ前記一対の電極板の少なくとも一方と接触する凸状電極と、を有し、前記制御部は、前記接続位置で前記凸状電極と前記一対の電極板の少なくとも一方とが接続された状態において、前記充電部に充電を開始させる、ことを特徴とする。   In order to achieve the above object, a vehicle charging system according to the present invention includes a charging device and a power receiving unit provided in a vehicle, and the charging device includes a power feeding unit connected to the power receiving unit, and A connecting state in which the power receiving unit and the power feeding unit are connected, and an elevating unit that connects the power feeding unit to the power receiving unit by raising the power feeding unit from the standby position to the connection position when the vehicle is stopped. And a charging unit that charges the vehicle via the power feeding unit and the power receiving unit, and a control unit that controls the charging unit, the power receiving unit being spaced in a direction orthogonal to the vertical direction. And a pair of electrode plates that are arranged to face each other, the power feeding portion is projected in a protruding direction from the main body portion having an insulating property and the main body portion toward the pair of electrode plates, and at the connection position. , Inserted between the pair of electrode plates, And a convex electrode in contact with at least one of the pair of electrode plates, the control unit in a state in which the convex electrode and at least one of the pair of electrode plates are connected at the connection position. The charging section is caused to start charging.

上記車両用充電システムにおいて、前記受電部は、さらに、各前記電極板に対応する付勢部材を有し、各前記付勢部材は、対応する前記電極板を、対向する前記電極板に向けて付勢し、前記一対の電極板は、前記電極板間に前記凸状電極が挿入されていない状態で、前記付勢部材により付勢された前記電極板の間隔が前記凸状電極よりも狭くなる、ものである。   In the above vehicle charging system, the power receiving unit further includes a biasing member corresponding to each of the electrode plates, and each biasing member directs the corresponding electrode plate toward the facing electrode plate. The pair of electrode plates are urged such that the distance between the electrode plates urged by the urging member is narrower than that of the convex electrodes when the convex electrodes are not inserted between the electrode plates. It is a thing.

上記車両用充電システムにおいて、前記給電部は、さらに、前記凸状電極を前記本体部の側面から前記突出方向に向けて突出させる突出状態と、前記凸状電極を前記突出方向と反対方向に向けて移動して前記本体部に収容する収容状態と、に切り替える切替機構を有する、ものである。   In the above vehicle charging system, the power feeding unit may further include a protruding state in which the convex electrode is protruded from a side surface of the main body unit in the protruding direction, and the convex electrode may be directed in a direction opposite to the protruding direction. It has a switching mechanism for switching between a housing state in which the housing is moved and housed in the main body.

上記車両用充電システムにおいて、前記切替機構は、前記本体部に収容され、前記凸状電極を前記突出方向に付勢する形状記憶合金製のコイルばねと、前記コイルばねを加熱する加熱機構と、を有し、前記制御部は、前記加熱機構により前記コイルばねを加熱し、前記コイルばねの伸長により前記凸状電極を前記突出方向に突出させる、ものである。   In the above vehicle charging system, the switching mechanism is housed in the main body portion, a coil spring made of a shape memory alloy that biases the convex electrode in the projecting direction, and a heating mechanism that heats the coil spring, The control section heats the coil spring by the heating mechanism and causes the convex electrode to project in the projecting direction by the extension of the coil spring.

本発明に係る車両用充電システムによれば、車高のばらつきに対して受電部側の電極と給電部側の電極との接触を確保することができる、という効果を奏する。   According to the vehicle charging system of the present invention, it is possible to ensure contact between the electrode on the power receiving unit side and the electrode on the power feeding unit side with respect to variations in vehicle height.

図1は、実施形態に係る車両用充電システムが適用された車両の一例を示す模式図である。FIG. 1 is a schematic diagram showing an example of a vehicle to which the vehicle charging system according to the embodiment is applied. 図2は、実施形態に係る車両用充電システムの構成例を示す模式図である。FIG. 2 is a schematic diagram showing a configuration example of the vehicle charging system according to the embodiment. 図3は、受電部と給電部の接続状態の一例を示す模式図である。FIG. 3 is a schematic diagram illustrating an example of a connection state between the power receiving unit and the power feeding unit. 図4は、受電部と給電部の接続状態の他の一例を示す模式図である。FIG. 4 is a schematic diagram showing another example of the connection state of the power receiving unit and the power feeding unit. 図5は、凸状電極が収容された給電部の構成例を示す模式図である。FIG. 5: is a schematic diagram which shows the structural example of the electric power feeding part which accommodated the convex-shaped electrode. 図6は、凸状電極が突出した給電部の構成例を示す模式図である。FIG. 6 is a schematic diagram showing a configuration example of a power feeding portion in which a convex electrode is projected. 図7(A)及び図7(B)は、車両用充電システムの動作例を示す模式図である。7A and 7B are schematic diagrams showing an operation example of the vehicle charging system. 図8(A)及び図8(B)は、車両用充電システムの動作例を示す模式図である。FIG. 8A and FIG. 8B are schematic diagrams showing an operation example of the vehicle charging system. 図9は、実施形態の第1変形例に係る受電部の構成例を示す模式図である。FIG. 9 is a schematic diagram illustrating a configuration example of the power receiving unit according to the first modified example of the embodiment. 図10は、実施形態の第2変形例における受電部の構成例を示す模式図である。FIG. 10 is a schematic diagram illustrating a configuration example of a power receiving unit according to the second modified example of the embodiment. 図11は、実施形態の第3変形例に係る車両用充電システムの構成例を示す模式図である。FIG. 11 is a schematic diagram showing a configuration example of the vehicle charging system according to the third modified example of the embodiment. 図12は、センサによる検出時の受電部と給電部との位置関係の一例を示す模式図である。FIG. 12 is a schematic diagram illustrating an example of the positional relationship between the power receiving unit and the power feeding unit at the time of detection by the sensor. 図13は、センサによる非検出時の受電部と給電部との位置関係の一例を示す模式図である。FIG. 13 is a schematic diagram illustrating an example of the positional relationship between the power receiving unit and the power feeding unit when the sensor does not detect the power.

以下に、本発明に係る車両用充電システムの実施形態について図面を参照しつつ詳細に説明する。なお、下記実施形態により本発明が限定されるものではない。下記実施形態における構成要素には、当業者が容易に想定できるもの、あるいは実質的に同一のものが含まれる。また、下記実施形態における構成要素は、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。   Embodiments of a vehicle charging system according to the present invention will be described below in detail with reference to the drawings. The present invention is not limited to the embodiments described below. The constituent elements in the following embodiments include those that can be easily conceived by those skilled in the art or those that are substantially the same. Further, the constituent elements in the following embodiments can be variously omitted, replaced, and changed without departing from the scope of the invention.

[実施形態]
実施形態に係る車両用充電システムについて図1〜図8を参照して説明する。なお、図1は、充電施設の停車位置に停止した車両の一例を示す。図2は、車両用充電システムの受電部と給電部とが接続位置で接続している接続状態の一例を示す。図3は、図2に示す接続状態を前方から見た図である。図4は、図3と異なる接続位置で接続している受電部と給電部の接続状態を前方から見た図である。図5は、凸状電極が本体部に収容された給電部の一例を示す。図6は、凸状電極が本体部から突出した給電部の一例を示す。図7(A)、図7(B)、図8(A)、及び図8(B)は、受電部と給電部との接続時の動作の流れを示す。
[Embodiment]
A vehicle charging system according to an embodiment will be described with reference to FIGS. 1 to 8. Note that FIG. 1 shows an example of a vehicle stopped at a stop position of a charging facility. FIG. 2 shows an example of a connection state in which the power reception unit and the power supply unit of the vehicle charging system are connected at the connection position. FIG. 3 is a diagram of the connection state shown in FIG. 2 viewed from the front. FIG. 4 is a diagram of the connection state of the power receiving unit and the power feeding unit, which are connected at a connection position different from that in FIG. 3, as viewed from the front. FIG. 5 shows an example of a power feeding unit in which the convex electrode is housed in the main body. FIG. 6 shows an example of a power feeding unit in which the convex electrode projects from the main body. FIG. 7A, FIG. 7B, FIG. 8A, and FIG. 8B show the flow of operation when the power receiving unit and the power feeding unit are connected.

以下の説明において、特に記載しない限り、図1、図3〜図6(図9〜図13を含む)におけるX方向は、本実施形態における車両の前後方向である。Y方向は、前後方向と直交する方向であり、本実施形態における車両の幅方向である。Z方向は、前後方向及び幅方向と直交する方向であり、本実施形態における車両の上下方向である。つまり、前後方向と幅方向と上下方向とは相互に直交するものとする。なお、上下方向は鉛直方向に限られない。   In the following description, the X direction in FIGS. 1 and 3 to 6 (including FIGS. 9 to 13) is the front-rear direction of the vehicle in the present embodiment, unless otherwise specified. The Y direction is a direction orthogonal to the front-rear direction and is the width direction of the vehicle in the present embodiment. The Z direction is a direction orthogonal to the front-back direction and the width direction, and is the vertical direction of the vehicle in the present embodiment. That is, the front-back direction, the width direction, and the up-down direction are orthogonal to each other. The vertical direction is not limited to the vertical direction.

車両用充電システム1は、例えば、電気自動車(EV)、ハイブリッド自動車(HEV)、プラグインハイブリッド自動車(PHEV)等を含む車両100に適用される。車両100は、例えば、図1及び図2に示すように、蓄電池等のバッテリ110を搭載し、バッテリ110に蓄電された電力を利用して走行可能に構成されたものである。バッテリ110は、車両100内に配索されたケーブル111,112を介して、車両100に設けられた受電部11に電気的に接続されている。本実施形態のバッテリ110は、受電部11を介して外部の充電装置2に電気的に接続することができ、当該充電装置2からの電力供給により充電される。車両100は、自車両の底部101と地面120との間の上下方向に車高hを有する。車高hは、車両100のメーカー、車種、タイヤ径等の違いや、乗員の人数、積載物の重量等の違いにより必ずしも一定にならない。車両用充電システム1は、図1及び図2に示すように、主に、充電装置2と、車両100に設けられた受電部11とを備える。   The vehicle charging system 1 is applied to a vehicle 100 including, for example, an electric vehicle (EV), a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), and the like. The vehicle 100 is equipped with a battery 110 such as a storage battery as shown in FIGS. 1 and 2, and is configured to be able to travel using the electric power stored in the battery 110. Battery 110 is electrically connected to power reception unit 11 provided in vehicle 100 via cables 111 and 112 arranged in vehicle 100. The battery 110 of the present embodiment can be electrically connected to the external charging device 2 via the power receiving unit 11, and is charged by the power supply from the charging device 2. The vehicle 100 has a vehicle height h in the up-down direction between the bottom portion 101 of the vehicle and the ground surface 120. The vehicle height h is not always constant due to differences in the manufacturer, vehicle type, tire diameter, etc. of the vehicle 100, the number of passengers, the weight of the load, etc. As shown in FIGS. 1 and 2, the vehicle charging system 1 mainly includes a charging device 2 and a power receiving unit 11 provided in the vehicle 100.

充電装置2は、例えば車両100の充電施設に設けられており、充電施設内の停車位置に停止した車両100に対して充電を行う。この停車位置は、例えば、充電装置2により車両100に充電することが可能となる位置である。充電装置2は、給電部31と、装置側昇降部34と、充電部35と、制御部37とを備える。本実施形態の車両用充電システム1は、充電装置2の給電部31を停車位置の地面120から上昇させて車両100の底部101に設けられた受電部11に電気的に接続し、車両100に対する充電を行うものである。停車位置の地面120下の空間には、図2に示すように、給電部31、装置側昇降部34、充電部35、及び制御部37が収容されている。   The charging device 2 is provided, for example, in a charging facility of the vehicle 100, and charges the vehicle 100 stopped at a stop position in the charging facility. The stop position is, for example, a position at which the vehicle 100 can be charged by the charging device 2. The charging device 2 includes a power supply unit 31, a device-side elevating unit 34, a charging unit 35, and a control unit 37. The vehicle charging system 1 according to the present embodiment raises the power feeding unit 31 of the charging device 2 from the ground 120 at the stop position and electrically connects the power feeding unit 31 to the power receiving unit 11 provided on the bottom portion 101 of the vehicle 100 to connect the vehicle 100 to the vehicle. It is for charging. As shown in FIG. 2, a power feeding unit 31, a device-side elevating unit 34, a charging unit 35, and a control unit 37 are housed in the space below the ground 120 at the stop position.

給電部31は、車両100側の受電部11と電気的に接続する接続部である。給電部31は、不図示のケーブル等を介して充電部35に電気的に接続されている。本実施形態の給電部31は、装置側昇降部34により待機位置(装置側待機位置)から接続位置まで上昇させることで受電部11に対して電気的に接続される。この装置側待機位置は、例えば、装置側昇降部34の昇降機構が最も下降した状態で、給電部31が地面120下の空間(給電部収容部121)に収容されている位置である。接続位置は、例えば、装置側昇降部34の昇降機構が最も上昇した状態で、給電部31と受電部11とが接続している位置である。本実施形態の接続位置は、図3に示す車高h1や図4に示す車高h2(<h1)のように、車高hがばらついた場合であっても、給電部31と受電部11とが接続している位置である。給電部31は、地面120から突出した部分の上下方向の長さmが、想定される車高h(h1,h2を含む)の車両100について充電できるように設定される。給電部31は、本体部32と、凸状電極33と、コイルばね41と、ヒータ導線43と、導通チェック導線45と、給電導線47とを有する。   The power supply unit 31 is a connection unit that is electrically connected to the power reception unit 11 on the vehicle 100 side. The power feeding section 31 is electrically connected to the charging section 35 via a cable or the like (not shown). The power feeding unit 31 of the present embodiment is electrically connected to the power receiving unit 11 by raising the device-side elevating unit 34 from the standby position (device-side standby position) to the connection position. The device-side standby position is, for example, a position where the power feeding unit 31 is housed in the space under the ground 120 (power feeding unit housing 121) in a state where the lifting mechanism of the device-side lifting unit 34 is at the lowest position. The connection position is, for example, a position where the power feeding unit 31 and the power receiving unit 11 are connected in a state where the lifting mechanism of the device-side lifting unit 34 is most raised. Even when the vehicle height h varies like the vehicle height h1 shown in FIG. 3 and the vehicle height h2 (<h1) shown in FIG. 4, the connection position of the present embodiment is different from the power feeding unit 31 and the power receiving unit 11. This is the position where and are connected. The power feeding unit 31 is set such that the vertical length m of the portion protruding from the ground 120 can be charged with respect to the vehicle 100 having an expected vehicle height h (including h1 and h2). The power feeding section 31 includes a main body section 32, a convex electrode 33, a coil spring 41, a heater conducting wire 43, a continuity check conducting wire 45, and a feeding conducting wire 47.

本体部32は、例えば、絶縁性を有する材料で内部空間を有する箱状に形成される。本体部32は、主に、凸状電極33、コイルばね41、ヒータ導線43、導通チェック導線45、及び給電導線47を内部空間に収容する。本体部32は、装置側昇降部34と共に、地面120下に設けられた給電部収容部121に収容される。本体部32は、給電部収容部121に収容された状態において、装置側昇降部34により上下方向に昇降可能に支持される。   The main body 32 is formed of, for example, a material having an insulating property and has a box shape having an internal space. The main body 32 mainly accommodates the convex electrode 33, the coil spring 41, the heater lead wire 43, the continuity check lead wire 45, and the power feed lead wire 47 in the internal space. The main body part 32 is housed in the power supply part housing part 121 provided below the ground 120 together with the device-side elevating part 34. The main body 32 is supported by the device-side elevating unit 34 so as to be vertically movable in the state of being accommodated in the power feeding unit accommodating unit 121.

凸状電極33は、本体部32から受電部11に向かう突出方向に突出し、接続位置において、受電部11の電極(後述する電極板12,13)と接触するものである。本実施形態の突出方向は、前後方向における前方である。凸状電極33は、例えば、導電性を有する金属材料で円柱状に形成される。凸状電極33は、コイルばね41と共に、本体部32に設けられた凸状電極収容部49に収容される。凸状電極33は、凸状電極収容部49に収容された状態において、コイルばね41により前後方向に移動可能に支持される。凸状電極33は、導通チェック導線45の端部、及び、給電導線47の端部に電気的に接続される。   The convex electrode 33 protrudes in a projecting direction from the main body 32 toward the power receiving unit 11, and comes into contact with electrodes (electrode plates 12 and 13 described later) of the power receiving unit 11 at the connection position. The protruding direction of this embodiment is the front in the front-rear direction. The convex electrode 33 is formed of, for example, a metal material having conductivity in a columnar shape. The convex electrode 33 is accommodated in the convex electrode accommodating portion 49 provided in the main body portion 32 together with the coil spring 41. The convex electrode 33 is supported by the coil spring 41 so as to be movable in the front-rear direction while being accommodated in the convex electrode accommodating portion 49. The convex electrode 33 is electrically connected to the end of the continuity check conducting wire 45 and the end of the power feeding conducting wire 47.

コイルばね41は、本実施形態における切替機構の一例である。切替機構は、凸状電極33を本体部32の側面32aから突出方向に向けて突出させる突出状態と、凸状電極33を突出方向と反対方向に向けて移動して本体部32に収容する収容状態と、に切り替える。本実施形態の突出方向と反対方向は、前後方向における後方であり、埋没方向である。コイルばね41は、本体部32に収容され、凸状電極33を突出方向に付勢するものである。コイルばね41は、例えば形状記憶合金(SMA:Shape Memory Alloy)等の材料でコイル状に形成されている。コイルばね41は、突出方向側の端部が、凸状電極33の埋没方向側の端部に当接して固定されている。また、コイルばね41は、埋没方向側の端部が、凸状電極収容部49の底部に当接して固定されている。本実施形態のコイルばね41は、コイル状に成形されたヒータ導線43と一体的に形成される。コイルばね41は、ヒータ導線43による加熱前状態で、図5に示すように、凸状電極33全体が凸状電極収容部49に収容し、かつ、ヒータ導線43による加熱時状態で、図6に示すように、凸状電極33が一部を残して凸状電極収容部49から突出するように形成される。   The coil spring 41 is an example of a switching mechanism in this embodiment. The switching mechanism includes a protruding state in which the convex electrode 33 is projected from the side surface 32a of the main body portion 32 in the protruding direction, and a housing state in which the convex electrode 33 is moved in the opposite direction to the protruding direction and is accommodated in the main body portion 32. Switch to the state. The direction opposite to the projecting direction of this embodiment is the rear in the front-rear direction and the burying direction. The coil spring 41 is housed in the main body 32 and biases the convex electrode 33 in the protruding direction. The coil spring 41 is formed of a material such as shape memory alloy (SMA) in a coil shape. The end of the coil spring 41 on the protruding direction abuts and is fixed to the end of the convex electrode 33 on the burying direction side. The end of the coil spring 41 on the burying direction side is fixed by abutting on the bottom of the convex electrode accommodating portion 49. The coil spring 41 of the present embodiment is formed integrally with the heater conducting wire 43 formed in a coil shape. As shown in FIG. 5, the coil spring 41 stores the entire convex electrode 33 in the convex electrode accommodating portion 49 in a state before being heated by the heater conducting wire 43, and is in a state when being heated by the heater conducting wire 43, as shown in FIG. As shown in FIG. 3, the convex electrode 33 is formed so as to protrude from the convex electrode accommodating portion 49, leaving a part thereof.

ヒータ導線43は、コイルばね41を加熱する加熱機構である。加熱機構は、本実施形態における切替機構の一例である。すなわち、切替機構は、コイルばね41とヒータ導線43とを密着または被膜を介して密接させたものである。ヒータ導線43は、ニクロム線や鉄クロム線等の電熱線である。ヒータ導線43は、コイルばね41の後方側の端部から前方側の端部に向かって配線され、コイルばね41の前方側の端部を折り返して後方側の端部に向けて配線される。ヒータ導線43は、充電部35から電力が供給され、コイルばね41を加熱する。   The heater lead wire 43 is a heating mechanism that heats the coil spring 41. The heating mechanism is an example of the switching mechanism in the present embodiment. That is, the switching mechanism is one in which the coil spring 41 and the heater conducting wire 43 are brought into close contact with each other or through a coating. The heater conducting wire 43 is a heating wire such as a nichrome wire or an iron chrome wire. The heater conducting wire 43 is wired from the rear end of the coil spring 41 toward the front end thereof, and the front end of the coil spring 41 is folded back and wired toward the rear end. The heater conducting wire 43 is supplied with electric power from the charging section 35 and heats the coil spring 41.

導通チェック導線45は、凸状電極33と受電部11の電極との導通を確認するための被覆電線である。導通チェック導線45は、前方側の端部が凸状電極33に電気的に接続され、後方側の端部が充電部35に設けられた導通検査器(不図示)に接続され、コイルばね41に沿わせることなく配線される。導通検査器は、制御部37に接続され、制御部37に対して導通結果を出力する。制御部37は、入力された導通結果に基づいて、充電を開始するか否かを判定する。   The continuity check conducting wire 45 is a covered electric wire for confirming continuity between the convex electrode 33 and the electrode of the power receiving unit 11. The continuity check conductor 45 has a front end electrically connected to the convex electrode 33, and a rear end connected to a continuity tester (not shown) provided in the charging unit 35, and the coil spring 41. Wired without going along. The continuity tester is connected to the control unit 37 and outputs a continuity result to the control unit 37. The control unit 37 determines whether to start charging based on the input conduction result.

給電導線47は、充電部35から凸状電極33に向けて電力を供給する被覆電線である。給電導線47は、一方の端部が凸状電極33に電気的に接続され、他方の端部が充電部35に電気的に接続されている。   The power supply lead wire 47 is a covered electric wire that supplies electric power from the charging section 35 to the convex electrode 33. One end of the power supply lead 47 is electrically connected to the convex electrode 33, and the other end thereof is electrically connected to the charging unit 35.

凸状電極収容部49は、本体部32に形成された空間部であり、主に、凸状電極33、コイルばね41、ヒータ導線43、導通チェック導線45、及び給電導線47を収容する。凸状電極収容部49は、凸状電極33を本体部32の側面32aに設けられた開口を介して外部に突出可能に支持する。   The convex electrode accommodating portion 49 is a space portion formed in the main body portion 32, and mainly accommodates the convex electrode 33, the coil spring 41, the heater conducting wire 43, the conduction check conducting wire 45, and the power feeding conducting wire 47. The convex electrode accommodating portion 49 supports the convex electrode 33 so as to be able to project to the outside through an opening provided in the side surface 32 a of the main body portion 32.

装置側昇降部34は、制御部37に電気的に接続されており、例えば制御部37から受信する制御信号に応じて駆動する。装置側昇降部34は、図1に示すように、車両100が停車位置に停止した状態で、給電部31を装置側待機位置から接続位置まで移動させることで給電部31を受電部11に対して接続させるものである。この停車位置は、具体的には、車両100が停車した際に、給電部31が上下方向において受電部11と重ならない位置であり、かつ接続位置で給電部31が前後方向において受電部11と対向する位置である。装置側昇降部34は、不図示のアクチュエータやセンサ等を含んで構成される昇降機構を有し、制御部37からの制御信号に応じて、昇降機構により給電部31を車両100の上下方向に昇降させる。装置側昇降部34は、例えば昇降機構がパンタグラフで構成されている場合、パンタグラフの伸縮方向の一方の端部側に給電部31が設けられている。   The device-side elevating unit 34 is electrically connected to the control unit 37, and is driven according to a control signal received from the control unit 37, for example. As shown in FIG. 1, the device-side elevating unit 34 moves the power supply unit 31 from the device-side standby position to the connection position while the vehicle 100 is stopped at the stop position, thereby moving the power supply unit 31 to the power receiving unit 11. To connect. Specifically, the vehicle stop position is a position where the power feeding unit 31 does not overlap the power receiving unit 11 in the vertical direction when the vehicle 100 is stopped, and the power feeding unit 31 does not overlap the power receiving unit 11 in the front-back direction at the connection position. It is the opposite position. The device-side elevating / lowering unit 34 has an elevating / lowering mechanism including an actuator, a sensor, and the like (not shown). Raise and lower. In the device-side elevating unit 34, for example, when the elevating mechanism is configured by a pantograph, the power feeding unit 31 is provided on one end side in the expansion / contraction direction of the pantograph.

充電部35は、受電部11と給電部31とが接続した接続状態で、車両100に対して給電部31及び受電部11を介して充電を行う。充電部35は、車両100に対して、上記接続状態において、給電部31及び受電部11を介して充電を行うものである。充電部35は、商用電源等を含む外部電源(不図示)に電気的に接続されている。充電部35は、上記接続状態において、制御部37から受信した制御信号に応じて外部電源からバッテリ110への充電を開始したり、充電を終了したりする。   The charging unit 35 charges the vehicle 100 via the power feeding unit 31 and the power receiving unit 11 in a connected state in which the power receiving unit 11 and the power feeding unit 31 are connected. The charging unit 35 charges the vehicle 100 via the power feeding unit 31 and the power receiving unit 11 in the above-mentioned connected state. The charging unit 35 is electrically connected to an external power source (not shown) including a commercial power source and the like. In the connected state, the charging unit 35 starts or ends charging of the battery 110 from the external power supply according to the control signal received from the control unit 37.

制御部37は、充電部35を制御する。制御部37は、接続位置で給電部31の凸状電極33と受電部11の電極とが接続された状態において、充電部35に充電を開始させる。制御部37は、例えば、MPU(Micro Processing Unit)等の中央演算処理装置、ROM(Read Only Memory)、RAM(Random Access Memory)及びインターフェースを含む周知のマイクロコンピュータを主体とする電子回路を含んで構成される。制御部37は、上記接続状態において、充電部35に制御信号を送信することで当該充電部35によるバッテリ110への充電を開始させる。制御部37は、例えば充電部35から受信した通電電流値に基づいてバッテリ110の充電状態を判定し、判定した充電状態に応じてバッテリ110への充電を終了する。   The control unit 37 controls the charging unit 35. The control unit 37 causes the charging unit 35 to start charging in a state where the convex electrode 33 of the power feeding unit 31 and the electrode of the power receiving unit 11 are connected at the connection position. The control unit 37 includes, for example, a central processing unit such as an MPU (Micro Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an electronic circuit mainly including a well-known microcomputer including an interface. Composed. In the connection state, the control unit 37 transmits a control signal to the charging unit 35 to start charging the battery 110 by the charging unit 35. The control unit 37 determines the charging state of the battery 110 based on the energization current value received from the charging unit 35, for example, and ends the charging of the battery 110 according to the determined charging state.

受電部11は、充電装置2側の給電部31と電気的に接続する接続部である。受電部11は、車両側昇降部14と共に、受電部収容部102に収容される。本実施形態の受電部11は、不図示の移動機構により幅方向に移動可能に構成される。つまり、受電部11と給電部31とは、移動機構により幅方向において相対移動可能に構成される。   The power reception unit 11 is a connection unit that is electrically connected to the power supply unit 31 on the charging device 2 side. The power receiving unit 11 is housed in the power receiving unit housing unit 102 together with the vehicle-side elevating unit 14. The power receiving unit 11 of the present embodiment is configured to be movable in the width direction by a moving mechanism (not shown). That is, the power receiving unit 11 and the power feeding unit 31 are configured to be relatively movable in the width direction by the moving mechanism.

車両側昇降部14は、車両100内の不図示の制御部に電気的に接続されており、当該制御部から受信する制御信号に応じて駆動する。車両側昇降部14は、車両100が停車位置に停止した状態で、受電部11を車両側待機位置から接続位置まで移動させることで受電部11を給電部31に接続させるものである。車両側昇降部14は、不図示のアクチュエータやセンサ等を含んで構成される昇降機構を有し、制御信号に応じて、昇降機構により受電部11を上下方向に昇降させる。   The vehicle-side elevating / lowering unit 14 is electrically connected to a control unit (not shown) in the vehicle 100 and is driven according to a control signal received from the control unit. The vehicle-side elevating / lowering unit 14 connects the power receiving unit 11 to the power feeding unit 31 by moving the power receiving unit 11 from the vehicle-side standby position to the connection position while the vehicle 100 is stopped at the stop position. The vehicle-side elevating / lowering unit 14 has an elevating / lowering mechanism including an actuator (not shown), a sensor, etc., and raises / lowers the power receiving unit 11 by the elevating / lowering mechanism according to a control signal.

受電部収容部102は、車両100の底部101に形成された空間部であり、受電部11、及び車両側昇降部14を収容する。受電部収容部102は、受電部11を車両100の底部101に設けられた開口を介して外部に突出可能に支持する。   The power receiving unit housing unit 102 is a space formed in the bottom 101 of the vehicle 100, and houses the power receiving unit 11 and the vehicle-side elevating unit 14. The power receiving portion housing portion 102 supports the power receiving portion 11 so as to be capable of projecting to the outside through an opening provided in the bottom portion 101 of the vehicle 100.

本実施形態の受電部11は、車両側昇降部14により待機位置(車両側待機位置)から接続位置まで下降させることで給電部31に電気的に接続される。この車両側待機位置は、車両側昇降部14の昇降機構が最も上昇した状態で、受電部11が底部101の受電部収容部102に収容されている位置である。接続位置は、例えば、車両側昇降部14の昇降機構が最も下降した状態で、受電部11と給電部31とが接続している位置である。この接続位置は、車高hがばらついた場合でも、給電部31と受電部11とが接続している位置であり、受電部11の電極と給電部31の凸状電極33とが接触する位置である。   The power reception unit 11 of the present embodiment is electrically connected to the power supply unit 31 by being lowered from the standby position (vehicle-side standby position) to the connection position by the vehicle-side elevation unit 14. The vehicle-side standby position is a position where the power receiving section 11 is housed in the power receiving section housing section 102 of the bottom section 101 in a state where the lifting mechanism of the vehicle side lifting section 14 is most raised. The connection position is, for example, a position where the power receiving unit 11 and the power feeding unit 31 are connected in a state where the lifting mechanism of the vehicle-side lifting unit 14 is in the lowest position. This connection position is a position where the power feeding unit 31 and the power receiving unit 11 are connected even when the vehicle height h varies, and the position where the electrode of the power receiving unit 11 and the convex electrode 33 of the power feeding unit 31 contact each other. Is.

受電部11は、上下方向に延在し、当該上下方向と直交する方向に間隔をおいて対向して配置された一対の電極板12,13を有する。本実施形態の上下方向と直交する方向は、例えば幅方向である。一対の電極板12,13は、少なくとも接続位置において受電部11の凸状電極33と接触する。すなわち、凸状電極33は、本体部32から一対の電極板12,13に向かう突出方向に突出し、接続位置において、一対の電極板12,13間に挿入され、かつ一対の電極板12,13の少なくとも一方と接触する。凸状電極33は、突出方向に突出した状態で、受電部11と上下方向において重なる、つまり、車両100の幅方向から見た場合に、一対の電極板12,13と重なる。一対の電極板12,13は、幅方向においてギャップ幅gの間隔をあけて配置される。本実施形態のギャップ幅gは、例えば、凸状電極33の直径dと同じである。一対の電極板12,13は、接続位置において少なくとも一方が凸状電極33の径方向の外周面と接触する。各電極板12,13は、車両100の底部101から突出した部分の上下方向における長さnが、例えば、想定される車高hの車両100について凸状電極33が接続できるように構成される。各電極板12,13は、例えば、導電性を有する金属材料で板状に形成される。   The power receiving unit 11 has a pair of electrode plates 12 and 13 extending in the up-down direction and facing each other at intervals in a direction orthogonal to the up-down direction. The direction perpendicular to the vertical direction of the present embodiment is, for example, the width direction. The pair of electrode plates 12 and 13 contact the convex electrodes 33 of the power receiving unit 11 at least at the connection position. That is, the convex electrode 33 projects in the projecting direction from the main body portion 32 toward the pair of electrode plates 12 and 13, is inserted between the pair of electrode plates 12 and 13 at the connection position, and is located between the pair of electrode plates 12 and 13. Contact with at least one of the. The convex electrode 33 overlaps the power receiving unit 11 in the up-down direction in a state of protruding in the protruding direction, that is, overlaps with the pair of electrode plates 12 and 13 when viewed in the width direction of the vehicle 100. The pair of electrode plates 12 and 13 are arranged at intervals of a gap width g in the width direction. The gap width g of this embodiment is the same as the diameter d of the convex electrode 33, for example. At least one of the pair of electrode plates 12 and 13 is in contact with the outer circumferential surface of the convex electrode 33 in the radial direction at the connection position. Each of the electrode plates 12 and 13 is configured such that the convex electrode 33 can be connected to the vehicle 100 having a vertical length n of a portion protruding from the bottom portion 101 of the vehicle 100, for example, an assumed vehicle height h. .. Each of the electrode plates 12 and 13 is made of, for example, a conductive metal material and is formed into a plate shape.

電極板12,13は、対向する対向面に案内面12a,13aを有する。案内面12a,13aは、電極板12,13の下方側端面から上方向に対向面に向けて縮径するように形成される。案内面12a,13aは、給電部31と受電部11とが幅方向に相対移動することで、凸状電極33を一対の電極板12,13間に案内するものである。案内面12a,13aは、凸状電極33の外周面の一部と当接し当該凸状電極33を一対の電極板12,13間に向けて摺動させることで、凸状電極33を一対の電極板12,13間に案内する。   The electrode plates 12 and 13 have guide surfaces 12a and 13a on the facing surfaces facing each other. The guide surfaces 12a and 13a are formed so as to reduce in diameter from the lower end surfaces of the electrode plates 12 and 13 toward the facing surfaces in the upward direction. The guide surfaces 12a and 13a guide the convex electrode 33 between the pair of electrode plates 12 and 13 by the relative movement of the power feeding portion 31 and the power receiving portion 11 in the width direction. The guide surfaces 12a and 13a contact a part of the outer peripheral surface of the convex electrode 33, and slide the convex electrode 33 between the pair of electrode plates 12 and 13 to form a pair of convex electrodes 33. Guide between the electrode plates 12 and 13.

次に、車両用充電システム1における車両100への充電動作について図7(A)、図7(B)、図8(A)、及び図8(B)を参照して説明する。   Next, the charging operation of the vehicle 100 in the vehicle charging system 1 will be described with reference to FIGS. 7 (A), 7 (B), 8 (A), and 8 (B).

まず、車両100において、コントローラ(不図示)が、自車両が停止状態にあると判定すると、自動的または車両100のドライバによる操作に応じて、車両側昇降部14により受電部11を下降させる(図7(A))。受電部11は、受電部収容部102に収容された状態から車両100の底部101より突出した状態に移行する(図7(B))。充電装置2では、制御部37が、車両100が停止状態にあると判定すると、自動的に装置側昇降部34により給電部31を上昇させる(図7(A))。   First, in the vehicle 100, when a controller (not shown) determines that the host vehicle is in a stopped state, the vehicle-side elevating unit 14 lowers the power receiving unit 11 automatically or in response to an operation by a driver of the vehicle 100 ( FIG. 7A). The power receiving unit 11 shifts from a state of being housed in the power receiving unit housing unit 102 to a state of protruding from the bottom portion 101 of the vehicle 100 (FIG. 7 (B)). In the charging device 2, when the control unit 37 determines that the vehicle 100 is in the stopped state, the device-side elevating unit 34 automatically raises the power feeding unit 31 (FIG. 7A).

次に、制御部37は、装置側昇降部34により給電部31の上昇を開始させると、充電部35によりヒータ導線43に通電してコイルばね41を加熱させる。コイルばね41は、加熱により前後方向に伸長し、凸状電極33を本体部32から前方に突出させる。つまり、制御部37は、ヒータ導線43によりコイルばね41を加熱して伸長させ、当該コイルばね41の伸長により凸状電極を突出方向に突出させる。制御部37は、装置側昇降部34を駆動制御することにより給電部31を装置側待機位置から接続位置まで上昇させる。給電部31は、給電部収容部121に収容された状態から地面120より突出した状態に移行する。凸状電極33は、凸状電極収容部49に収容された状態から本体部32の側面32aより突出した状態に移行する。   Next, when the device-side elevating unit 34 starts to raise the power supply unit 31, the control unit 37 causes the charging unit 35 to energize the heater lead wire 43 to heat the coil spring 41. The coil spring 41 expands in the front-rear direction by heating and causes the convex electrode 33 to project forward from the main body portion 32. That is, the controller 37 heats and extends the coil spring 41 by the heater conductor 43, and the extension of the coil spring 41 causes the convex electrode to project in the projecting direction. The control unit 37 drives and controls the device-side elevating unit 34 to raise the power supply unit 31 from the device-side standby position to the connection position. The power feeding unit 31 shifts from a state of being housed in the power feeding unit housing unit 121 to a state of protruding from the ground 120. The convex electrode 33 shifts from a state of being accommodated in the convex electrode accommodating portion 49 to a state of protruding from the side surface 32 a of the main body portion 32.

給電部31は、装置側待機位置から接続位置に向けて上昇し続けると、凸状電極33が受電部11との接触を開始する(図8(A))。受電部11と給電部31とが前後方向で正対し、かつ受電部11の一対の電極板12,13と給電部31の凸状電極33とが上下方向で正対している場合、凸状電極33は、案内面12a,13aに略同時に接触しながら上昇して一対の電極板12,13間に挿入される。一方、給電部31が受電部11に対して幅方向にずれていた場合、給電部31が受電部11に対して幅方向に相対移動し、凸状電極33は、案内面12aまたは案内面13aのいずれか一方を摺動しながら一対の電極板12,13間に挿入される。凸状電極33は、給電部31が接続位置に向けて上昇を続けると、各電極板12,13を外側方向に向けて押し広げ、各電極板12,13の内側面を摺動しながら上昇する。   When the power feeding unit 31 continues to move upward from the device-side standby position toward the connection position, the convex electrode 33 starts contact with the power receiving unit 11 (FIG. 8A). When the power receiving unit 11 and the power feeding unit 31 face each other in the front-back direction and the pair of electrode plates 12 and 13 of the power receiving unit 11 and the convex electrode 33 of the power feeding unit 31 face each other in the vertical direction, the convex electrode 33 rises while contacting the guide surfaces 12a and 13a at substantially the same time, and is inserted between the pair of electrode plates 12 and 13. On the other hand, when the power feeding unit 31 is displaced in the width direction with respect to the power receiving unit 11, the power feeding unit 31 relatively moves in the width direction with respect to the power receiving unit 11, and the convex electrode 33 causes the guide surface 12a or the guide surface 13a. It is inserted between the pair of electrode plates 12 and 13 while sliding one of them. When the power feeding portion 31 continues to rise toward the connection position, the convex electrode 33 pushes and spreads the electrode plates 12 and 13 toward the outside, and rises while sliding on the inner side surfaces of the electrode plates 12 and 13. To do.

制御部37は、給電部31が接続位置に到達すると、装置側昇降部34の駆動を停止して給電部31の上昇を停止させる(図8(B))。制御部37は、給電部31の上昇を停止させると、充電部35により導通チェック導線45に通電して凸状電極33と電極板12,13とが導通しているか否かを判定する。制御部37は、凸状電極33と電極板12,13とが導通していると判定すると、充電部35に充電を開始させる。つまり、制御部37は、接続位置で凸状電極33と一対の電極板12,13とが接続された状態において、充電部35に充電を開始させる。   When the power feeding unit 31 reaches the connection position, the control unit 37 stops driving the device-side elevating unit 34 and stops the raising of the power feeding unit 31 (FIG. 8 (B)). When stopping the rise of the power supply section 31, the control section 37 determines whether or not the charging section 35 energizes the continuity check conducting wire 45 and the convex electrode 33 and the electrode plates 12 and 13 are in conduction. When the control unit 37 determines that the convex electrode 33 and the electrode plates 12 and 13 are electrically connected to each other, the control unit 37 causes the charging unit 35 to start charging. That is, the control unit 37 causes the charging unit 35 to start charging in a state where the convex electrode 33 and the pair of electrode plates 12 and 13 are connected at the connection position.

制御部37は、充電が終了すると、装置側昇降部34により給電部31の下降を開始させる。つづいて、制御部37は、充電部35によりヒータ導線43への通電を停止してコイルばね41の加熱を停止する。コイルばね41は、加熱の停止により萎縮し、凸状電極33を凸状電極収容部49に収容する(図7(A))。   When charging is completed, the control unit 37 causes the device-side elevating unit 34 to start descending the power supply unit 31. Subsequently, the control unit 37 stops the energization of the heater conducting wire 43 by the charging unit 35 and stops the heating of the coil spring 41. The coil spring 41 contracts due to the stop of heating and accommodates the convex electrode 33 in the convex electrode accommodating portion 49 (FIG. 7A).

以上説明したように、本実施形態の車両用充電システム1は、充電装置2と、車両100に設けられた受電部11とを備える。充電装置2は、給電部31と、車両100が停車位置に停止した状態で、給電部31を接続位置に上昇させることで給電部31を受電部11に接続させる装置側昇降部34と、給電部31及び受電部11を介して充電を行う充電部35と、充電部35を制御する制御部37とを備える。受電部11は、上下方向と直交する方向に間隔をおいて対向して配置された一対の電極板12,13を有する。給電部31は、本体部32と、本体部32から一対の電極板12,13に向かう突出方向に突出し、接続位置において、一対の電極板12,13間に挿入され、かつ一対の電極板12,13の少なくとも一方と接触する凸状電極33とを有する。制御部37は、接続位置で凸状電極33と一対の電極板12,13の少なくとも一方とが接続された状態において、充電部35に充電を開始させる。   As described above, the vehicle charging system 1 according to the present embodiment includes the charging device 2 and the power receiving unit 11 provided in the vehicle 100. The charging device 2 includes a power feeding unit 31, a device-side elevating unit 34 that connects the power feeding unit 31 to the power receiving unit 11 by raising the power feeding unit 31 to the connection position while the vehicle 100 is stopped at the stop position, and power feeding. A charging unit 35 that performs charging via the unit 31 and the power receiving unit 11 and a control unit 37 that controls the charging unit 35 are provided. The power receiving unit 11 has a pair of electrode plates 12 and 13 arranged to face each other with a gap in a direction orthogonal to the vertical direction. The power supply part 31 projects from the main body part 32 in a projecting direction from the main body part 32 toward the pair of electrode plates 12 and 13, and is inserted between the pair of electrode plates 12 and 13 at the connection position, and the pair of electrode plates 12 and 13. , 13 in contact with at least one of the convex electrodes 33. The control unit 37 causes the charging unit 35 to start charging in a state where the convex electrode 33 and at least one of the pair of electrode plates 12 and 13 are connected at the connection position.

このように、車両用充電システム1は、給電部31を接続位置に上昇させて受電部11に接続させることで、給電部31から突出方向に突出する凸状電極33を、上下方向と直交する方向に間隔をおいて対向する電極板12,13間に挿入し、少なくとも一方の電極板12,13に接触させる。これにより、車高h分離れた位置にある受電部11側の一対の電極板12,13と給電部31側の凸状電極33との上下方向の接触範囲が広くなり、車高hにばらつきがあっても、2つの電極間の接触を確保することができる。   As described above, in the vehicle charging system 1, the convex electrodes 33 projecting in the projecting direction from the power feeding unit 31 are orthogonal to the vertical direction by raising the power feeding unit 31 to the connection position and connecting it to the power receiving unit 11. It is inserted between the electrode plates 12 and 13 facing each other with a space in the direction and brought into contact with at least one of the electrode plates 12 and 13. As a result, the vertical contact range between the pair of electrode plates 12 and 13 on the power receiving section 11 side and the convex electrodes 33 on the power feeding section 31 side, which are separated from each other by the vehicle height h, becomes wide, and the vehicle height h varies. Even if there is, contact between the two electrodes can be secured.

また、車両用充電システム1は、給電部31が、凸状電極33を本体部32の側面から突出方向に向けて突出させる突出状態と、凸状電極33を突出方向と反対方向に向けて移動して本体部32に収容する収容状態と、に切り替える切替機構を有する。これにより、給電時以外では、凸状電極33を本体部32に収容し、給電時において凸状電極33を外部に露出させることができるので、凸状電極の汚損、破損を防止することができる。また、本体部32から突出した凸状電極33に人が接触する事態を減少させることができる。   In the vehicle charging system 1, the power feeding unit 31 moves the protruding electrode 33 in a protruding state in which the protruding electrode 33 protrudes from the side surface of the main body unit 32 in the protruding direction, and the protruding electrode 33 moves in a direction opposite to the protruding direction. Then, it has a switching mechanism for switching between the accommodation state of accommodating in the main body 32 and the accommodation state. Thereby, the convex electrode 33 can be housed in the main body portion 32 except when the power is supplied, and the convex electrode 33 can be exposed to the outside during the power supply, so that the convex electrode can be prevented from being soiled or damaged. .. Further, it is possible to reduce the situation in which a person contacts the convex electrode 33 protruding from the main body 32.

また、車両用充電システム1は、切替機構が、本体部32に収容され、凸状電極33を突出方向に付勢する形状記憶合金製のコイルばね41と、コイルばね41を加熱するヒータ導線43とを有する。制御部37は、ヒータ導線43によりコイルばね41を加熱し、コイルばね41の伸長により凸状電極33を突出方向に突出させる。これにより、簡単な構造で、通電により凸状電極33を本体部32から突出させることができる。また、ヒータ導線43によるコイルばね41の加熱を停止すると、コイルばね41が収縮して凸状電極33が本体部32に収容されるので、簡単な構造で凸状電極33を本体部32に収容することができる。   Further, in the vehicle charging system 1, the switching mechanism is housed in the main body 32, and the coil spring 41 made of a shape memory alloy that biases the convex electrode 33 in the protruding direction and the heater lead wire 43 that heats the coil spring 41. Have and. The controller 37 heats the coil spring 41 by the heater lead wire 43 and causes the convex electrode 33 to project in the projecting direction by the extension of the coil spring 41. Thereby, the convex electrode 33 can be projected from the main body portion 32 by energization with a simple structure. When the heating of the coil spring 41 by the heater conducting wire 43 is stopped, the coil spring 41 contracts and the convex electrode 33 is accommodated in the main body portion 32. Therefore, the convex electrode 33 is accommodated in the main body portion 32 with a simple structure. can do.

上記実施形態では、受電部11は、一対の電極板12,13が、凸状電極33の突出方向と直交する幅方向の長さ(ここでは直径)と同一の間隔をおいて固定されているが、これに限定されるものではない。例えば、各電極板12,13が幅方向に移動可能に支持され、電極板12,13の間隔が電極板12,13間への凸状電極33の挿入に応じて変更可能に構成されていてもよい。図9は、実施形態の第1変形例に係る受電部の構成例を示す模式図である。本実施形態の第1変形例における受電部11Aは、図9に示すように、各電極板12,13に対応する複数の付勢部材21と、複数の付勢部材21を支持する一対の支持板24,25とを有する。各付勢部材21は、例えば、コイル状のばね等から成り、各支持板24,25に支持される。支持板24は、複数の付勢部材21を挟んで電極板12と対向して配置される。支持板25は、複数の付勢部材21を挟んで電極板13と対向して配置される。各付勢部材21は、対応する電極板12,13を、対向する電極板13,12に向けて付勢する。より詳細には、複数の付勢部材21のうち、電極板12に付勢する付勢部材21は、支持板24に支持され、電極板12を、対向する電極板13に向けて付勢する。一方、電極板13に付勢する付勢部材21は、支持板25に支持され、電極板13を、対向する電極板12に向けて付勢する。受電部11Aは、電極板12,13間に凸状電極33が挿入されていない状態で、付勢部材21により付勢された電極板12,13の間隔が凸状電極33よりも狭くなる。一方、受電部11Aは、電極板12,13間に凸状電極33が挿入されている状態で、各付勢部材21の付勢力により各電極板12,13が凸状電極33に押し当てられる。なお、各電極板12,13に対応する付勢部材21が複数配置されているが、これに限定されるものではなく、各電極板12,13に対応する付勢部材21が1つであってもよい。また、付勢部材21は、コイル状のばねに限らず、板状のばねであってもよいし、ゴム等であってもよい。   In the above-described embodiment, in the power receiving unit 11, the pair of electrode plates 12 and 13 are fixed at the same interval as the length (diameter here) in the width direction orthogonal to the protruding direction of the convex electrode 33. However, it is not limited to this. For example, the electrode plates 12 and 13 are movably supported in the width direction, and the distance between the electrode plates 12 and 13 can be changed according to the insertion of the convex electrode 33 between the electrode plates 12 and 13. Good. FIG. 9 is a schematic diagram illustrating a configuration example of the power receiving unit according to the first modified example of the embodiment. As shown in FIG. 9, the power receiving unit 11A in the first modified example of the present embodiment includes a plurality of biasing members 21 corresponding to the electrode plates 12 and 13, and a pair of supports that support the plurality of biasing members 21. And plates 24, 25. Each urging member 21 is composed of, for example, a coil-shaped spring, and is supported by each support plate 24, 25. The support plate 24 is arranged to face the electrode plate 12 with the plurality of biasing members 21 interposed therebetween. The support plate 25 is arranged to face the electrode plate 13 with the plurality of biasing members 21 interposed therebetween. Each biasing member 21 biases the corresponding electrode plate 12, 13 toward the facing electrode plate 13, 12. More specifically, of the plurality of biasing members 21, the biasing member 21 that biases the electrode plate 12 is supported by the support plate 24 and biases the electrode plate 12 toward the opposing electrode plate 13. .. On the other hand, the biasing member 21 that biases the electrode plate 13 is supported by the support plate 25 and biases the electrode plate 13 toward the opposing electrode plate 12. In the power receiving portion 11A, the interval between the electrode plates 12 and 13 biased by the biasing member 21 is narrower than that of the convex electrode 33 in a state where the convex electrode 33 is not inserted between the electrode plates 12 and 13. On the other hand, in the power receiving unit 11A, the electrode plates 12 and 13 are pressed against the convex electrodes 33 by the urging force of the urging members 21 in a state where the convex electrodes 33 are inserted between the electrode plates 12 and 13. .. Although a plurality of biasing members 21 corresponding to the electrode plates 12 and 13 are arranged, the present invention is not limited to this, and the biasing member 21 corresponding to each electrode plate 12 and 13 is one. May be. Further, the biasing member 21 is not limited to a coil-shaped spring, and may be a plate-shaped spring, rubber, or the like.

実施形態の第1変形例に係る車両用充電システム1は、受電部11が、各電極板12,13に対応する付勢部材21を有する。各付勢部材21は、対応する電極板12,13を、対向する電極板13,12に向けて付勢する。一対の電極板12,13は、電極板12,13間に凸状電極33が挿入されていない状態で、付勢部材21により付勢された電極板12,13の間隔が凸状電極33よりも狭くなる。これにより、各電極板12,13と凸状電極33との接触が確実なものとなり、例えば、凸状電極33と一対の電極板12,13との電気的な接触不良の発生を防止することができる。   In the vehicle charging system 1 according to the first modified example of the embodiment, the power receiving unit 11 includes the urging member 21 corresponding to each of the electrode plates 12 and 13. Each biasing member 21 biases the corresponding electrode plate 12, 13 toward the facing electrode plate 13, 12. In the pair of electrode plates 12 and 13, when the convex electrode 33 is not inserted between the electrode plates 12 and 13, the distance between the electrode plates 12 and 13 biased by the biasing member 21 is greater than that of the convex electrode 33. Also becomes narrower. As a result, the contact between each electrode plate 12 and 13 and the convex electrode 33 is ensured, and for example, the occurrence of electrical contact failure between the convex electrode 33 and the pair of electrode plates 12 and 13 is prevented. You can

また、上記実施形態の第1変形例では、受電部11が、一対の電極板12,13で構成されているが、これに限定されるものではない。例えば、受電部11が、凸状電極33が接触する部分に配置された薄板状の一対の電極板12,13と、一対の電極板12,13を収容する筐体とで構成されていてもよい。図10は、実施形態の第2変形例に係る受電部の構成例を示す模式図である。本実施形態の第2変形例における受電部11Bは、図10に示すように、薄板状の一対の電極板22,23と、複数の付勢部材21と、絶縁性を有する材料で形成された筐体18,19とを含んで構成される。一対の電極板22,23は、上下方向に延在し、上下方向と直交する方向に間隔をおいて対向して配置されている。複数の付勢部材21は、各電極板22,23に対応して配置され、対応する電極板22,23を、対向する電極板23,22に向けて付勢する。筐体18は、電極板22と、少なくとも1つの付勢部材21とを収容する。筐体19は、電極板23と、少なくとも1つの付勢部材21とを収容する。筐体18,19は、上下方向に延在し、上下方向と直交する方向に間隔をおいて対向して配置されている。筐体18,19は、対向する対向面に案内面12a,13aを有する。一対の電極板22,23は、電極板22,23間に凸状電極33が挿入されていない状態で、付勢部材21により付勢された電極板22,23の間隔が凸状電極33よりも狭くなる。これにより、上述した実施形態の第1変形例による効果と同様に、各電極板22,23と凸状電極33との接触が確実なものとなり、凸状電極33と一対の電極板22,23との電気的な接触不良の発生を防止することができる。なお、各電極板22,23に対応する付勢部材21が複数配置されているが、これに限定されるものではなく、各電極板22,23に対応する付勢部材21が1つであってもよい。   Further, in the first modified example of the above-described embodiment, the power receiving unit 11 is composed of the pair of electrode plates 12 and 13, but is not limited to this. For example, the power receiving unit 11 may be configured by a pair of thin plate-shaped electrode plates 12 and 13 arranged in a portion in contact with the convex electrode 33 and a housing that houses the pair of electrode plates 12 and 13. Good. FIG. 10 is a schematic diagram illustrating a configuration example of the power receiving unit according to the second modified example of the embodiment. As shown in FIG. 10, the power receiving unit 11B in the second modified example of the present embodiment is formed of a pair of thin plate-shaped electrode plates 22 and 23, a plurality of biasing members 21, and an insulating material. The housing 18 and 19 are included. The pair of electrode plates 22 and 23 extend in the up-down direction and are arranged so as to face each other at intervals in the direction orthogonal to the up-down direction. The plurality of biasing members 21 are arranged corresponding to the electrode plates 22 and 23, and bias the corresponding electrode plates 22 and 23 toward the facing electrode plates 23 and 22. The housing 18 houses the electrode plate 22 and at least one biasing member 21. The housing 19 houses the electrode plate 23 and at least one biasing member 21. The housings 18 and 19 extend in the up-down direction and are arranged to face each other at intervals in the direction orthogonal to the up-down direction. The housings 18 and 19 have guide surfaces 12a and 13a on the facing surfaces facing each other. In the pair of electrode plates 22 and 23, when the convex electrode 33 is not inserted between the electrode plates 22 and 23, the distance between the electrode plates 22 and 23 biased by the biasing member 21 is larger than that of the convex electrode 33. Also becomes narrower. As a result, similar to the effect of the first modified example of the above-described embodiment, the contact between the electrode plates 22 and 23 and the convex electrode 33 is ensured, and the convex electrode 33 and the pair of electrode plates 22 and 23. It is possible to prevent the occurrence of poor electrical contact with. Although a plurality of biasing members 21 corresponding to the electrode plates 22 and 23 are arranged, the present invention is not limited to this, and the biasing member 21 corresponding to each electrode plate 22 and 23 is one. May be.

上記実施形態及び変形例では、受電部11,11A,11Bと給電部31との幅方向の位置ずれに対して、案内面12a,13aにより補正が行われるが、これに限定されるものではない。図11〜図13は、実施形態の第3変形例に係る車両用充電システム1の構成例を示す模式図である。実施形態の第3変形例に係る車両用充電システム1は、図11に示すように、車両100に設けられたセンサ51を有する。センサ51は、例えば、光電センサであり、給電部31に設けられた反射材53を検出する。反射材53は、センサ51から射出された光を反射させる材料で構成され、給電部31の上方側端部に設けられている。反射材53は、凸状電極33の幅方向の中心を通る位置に設けられている。   In the above-described embodiment and modification, the guide surfaces 12a and 13a correct the positional deviation of the power receiving units 11, 11A and 11B and the power feeding unit 31 in the width direction, but the invention is not limited to this. .. 11 to 13 are schematic diagrams showing a configuration example of the vehicle charging system 1 according to the third modified example of the embodiment. The vehicle charging system 1 according to the third modified example of the embodiment has a sensor 51 provided in the vehicle 100, as shown in FIG. 11. The sensor 51 is, for example, a photoelectric sensor, and detects the reflecting material 53 provided on the power feeding unit 31. The reflecting material 53 is made of a material that reflects the light emitted from the sensor 51, and is provided at the upper end of the power feeding section 31. The reflective material 53 is provided at a position passing through the center of the convex electrode 33 in the width direction.

センサ51は、図12、図13に示すように、少なくとも幅方向にセンサ検出範囲pを有する。センサ51は、センサ検出範囲p内に反射材53が存在する場合には、反射材53を検出する(図12)。一方、センサ51は、センサ検出範囲pに反射材53が存在しない場合には、反射材53を検出しない。センサ51は、車両100内の不図示の制御部に対して検出結果を出力する。制御部は、センサ51により反射材53が検出されていない場合、例えば、車両100のドライバに対して、受電部11,11A,11Bと給電部31とが位置ずれしている旨の通知を行う。また、制御部は、充電装置2に対して、位置ずれが生じている旨を無線通信等により送信し、給電部31を上昇しないように制限する。   As shown in FIGS. 12 and 13, the sensor 51 has a sensor detection range p at least in the width direction. The sensor 51 detects the reflective material 53, when the reflective material 53 exists in the sensor detection range p (FIG. 12). On the other hand, the sensor 51 does not detect the reflective material 53 when the reflective material 53 does not exist in the sensor detection range p. The sensor 51 outputs a detection result to a control unit (not shown) in the vehicle 100. When the reflective material 53 is not detected by the sensor 51, the control unit notifies, for example, the driver of the vehicle 100 that the power receiving units 11, 11A, 11B and the power feeding unit 31 are misaligned. .. In addition, the control unit transmits to the charging device 2 the fact that the positional deviation has occurred by wireless communication or the like, and restricts the power feeding unit 31 from rising.

実施形態の第3変形例に係る車両用充電システム1は、給電部31に設けられたセンサ52を有する。センサ52は、例えば、光電センサであり、受電部11を検出する。センサ52は、受電部11から反射される光を検出して、受電部11の有無を検出する。センサ52は、対向する方向に受電部11が存在する場合には、受電部11を検出する。一方、センサ52は、対向する方向に受電部11が存在しない場合には、受電部11を検出しない。センサ52は、制御部37に対して検出結果を出力する。制御部37は、センサ52により受電部11が検出されていない場合、例えば、充電装置2から車両100に対して、受電部11,11A,11Bと給電部31とが位置ずれしている旨を無線通信等により送信する。なお、センサ52は、給電部31に設けられているが、受電部11に設けられていてもよい。また、センサ52は、光電センサとしているが、これに限定されず、距離を測ることが可能なレーザ式変位センサであってもよいし、接触の有無を判定する接触式変位センサであってもよい。   The vehicle charging system 1 according to the third modified example of the embodiment includes the sensor 52 provided in the power feeding unit 31. The sensor 52 is, for example, a photoelectric sensor and detects the power reception unit 11. The sensor 52 detects the light reflected from the power receiving unit 11 and detects the presence or absence of the power receiving unit 11. The sensor 52 detects the power receiving unit 11 when the power receiving unit 11 exists in the opposite direction. On the other hand, the sensor 52 does not detect the power receiving unit 11 when the power receiving unit 11 does not exist in the opposite direction. The sensor 52 outputs the detection result to the control unit 37. When the power receiving unit 11 is not detected by the sensor 52, the control unit 37 notifies that the power receiving units 11, 11A, 11B and the power feeding unit 31 are displaced from the charging device 2 to the vehicle 100, for example. It is transmitted by wireless communication. Although the sensor 52 is provided in the power feeding unit 31, it may be provided in the power receiving unit 11. Further, although the sensor 52 is a photoelectric sensor, the sensor 52 is not limited to this, and may be a laser displacement sensor capable of measuring a distance or a contact displacement sensor for determining the presence or absence of contact. Good.

なお、上記実施形態及び変形例では、給電部31は、地面120から突出した部分の上下方向の長さ(突出高さ)が一定になるように設定されるが、これに限定されるものではない。例えば、凸状電極33が一対の電極板12,13に接触すると、装置側昇降部34による給電部31の上昇を停止させる構成であってもよい。また、給電部31に一対の電極板12,13の上限位置を検出するセンサを設け、当該センサの検出結果に応じて給電部31の上昇が停止する構成であってもよい。   In addition, in the above-described embodiment and modified example, the power feeding unit 31 is set such that the length of the portion protruding from the ground 120 in the vertical direction (the protruding height) is constant, but the present invention is not limited to this. Absent. For example, the configuration may be such that when the convex electrode 33 contacts the pair of electrode plates 12 and 13, the elevation of the power feeding unit 31 by the device-side elevating unit 34 is stopped. Further, the power supply unit 31 may be provided with a sensor that detects the upper limit position of the pair of electrode plates 12 and 13, and the rising of the power supply unit 31 may be stopped according to the detection result of the sensor.

また、上記実施形態及び変形例では、装置側昇降部34は、昇降機構を有する構成に限定されるものではなく、給電部31を待機位置から接続位置まで移動させるものであれば、どのような構造、構成であってもよい。   Further, in the above-described embodiment and modified example, the device-side elevating unit 34 is not limited to the configuration having the elevating mechanism, and may be any device that moves the power feeding unit 31 from the standby position to the connection position. It may have a structure or a configuration.

また、上記実施形態及び変形例では、受電部11が一対の電極板12,13を有し、給電部31が凸状電極33を有しているが、これらに限定されるものではない。例えば、受電部11が凸状電極33を有し、給電部31が一対の電極板12,13を有する構成であってもよい。   Further, in the above-described embodiment and modification, the power receiving unit 11 has the pair of electrode plates 12 and 13, and the power feeding unit 31 has the convex electrode 33, but the present invention is not limited to these. For example, the power receiving unit 11 may have the convex electrode 33, and the power feeding unit 31 may have the pair of electrode plates 12 and 13.

また、上記実施形態及び変形例では、凸状電極33は、本体部32から突出可能に構成され、かつ本体部32に収容可能に構成されているが、これに限定されるものではない。例えば、凸状電極33が本体部32から突出した状態で保持、固定されていてもよい。   Further, in the above-described embodiment and modification, the convex electrode 33 is configured to be capable of projecting from the main body 32 and to be housed in the main body 32, but the present invention is not limited to this. For example, the convex electrode 33 may be held and fixed in a state of protruding from the main body 32.

また、上記実施形態及び変形例では、受電部11と給電部31とが接続することで、車両100内のバッテリ110に対する充電を行っているが、これに限定されるものではない。例えば、受電部11及び給電部31がそれぞれ同じ構造の別電極を有し、別電極同士を接続することで車両100と充電装置2との間で通信を行うように構成してもよい。   Further, in the above-described embodiment and modification, the power receiving unit 11 and the power feeding unit 31 are connected to charge the battery 110 in the vehicle 100, but the present invention is not limited to this. For example, the power receiving unit 11 and the power feeding unit 31 may each have different electrodes having the same structure, and the different electrodes may be connected to each other to perform communication between the vehicle 100 and the charging device 2.

1 車両用充電システム
2 充電装置
11 受電部
12,13 電極板
12a,13a 案内面
14 車両側昇降部
18,19 筐体
21 付勢部材
31 給電部
32 本体部
33 凸状電極
34 装置側昇降部
35 充電部
37 制御部
41 コイルばね
43 ヒータ導線
49 凸状電極収容部
100 車両
102 受電部収容部
120 地面
121 給電部収容部
h,h1,h2 車高
g ギャップ幅
d 直径
1 Vehicle Charging System 2 Charging Device 11 Power Receiving Section 12, 13 Electrode Plate 12a, 13a Guide Surface 14 Vehicle Side Elevating Section 18, 19 Case 21 Energizing Member 31 Power Feeding Section 32 Main Body 33 Convex Electrode 34 Device Side Elevating Section 35 Charging part 37 Control part 41 Coil spring 43 Heater conducting wire 49 Convex electrode accommodating part 100 Vehicle 102 Power receiving part accommodating part 120 Ground 121 Feeding part accommodating part h, h1, h2 Vehicle height g Gap width d Diameter

Claims (4)

充電装置と、
車両に設けられた受電部と、を備え、
前記充電装置は、
前記受電部と接続する給電部と、
前記車両が停止した状態で、前記給電部を待機位置から接続位置まで上昇させることで前記給電部を前記受電部に対して接続させる昇降部と、
前記受電部と前記給電部とが接続した接続状態で、前記車両に対して前記給電部及び前記受電部を介して充電を行う充電部と、
前記充電部を制御する制御部と、を備え、
前記受電部は、
上下方向と直交する方向に間隔をおいて対向して配置された一対の電極板を有し、
前記給電部は、
絶縁性を有する本体部と、
前記本体部から前記一対の電極板に向かう突出方向に突出し、前記接続位置において、前記一対の電極板間に挿入され、かつ前記一対の電極板の少なくとも一方と接触する凸状電極と、を有し、
前記制御部は、
前記接続位置で前記凸状電極と前記一対の電極板の少なくとも一方とが接続された状態において、前記充電部に充電を開始させる、
ことを特徴とする車両用充電システム。
A charger,
A power receiving unit provided in the vehicle,
The charging device is
A power supply unit connected to the power reception unit,
An elevating unit that connects the power feeding unit to the power receiving unit by raising the power feeding unit from a standby position to a connection position in a state where the vehicle is stopped,
In a connection state in which the power receiving unit and the power feeding unit are connected, a charging unit that charges the vehicle via the power feeding unit and the power receiving unit,
A control unit for controlling the charging unit,
The power receiving unit,
Having a pair of electrode plates arranged facing each other at intervals in a direction orthogonal to the vertical direction,
The power feeding unit,
An insulating main body,
A protruding electrode that protrudes from the main body toward the pair of electrode plates, is inserted between the pair of electrode plates at the connection position, and is in contact with at least one of the pair of electrode plates; Then
The control unit is
In a state in which the convex electrode and at least one of the pair of electrode plates are connected at the connection position, the charging unit starts charging.
A vehicle charging system characterized by the above.
前記受電部は、さらに、
各前記電極板に対応する付勢部材を有し、
各前記付勢部材は、
対応する前記電極板を、対向する前記電極板に向けて付勢し、
前記一対の電極板は、
前記電極板間に前記凸状電極が挿入されていない状態で、前記付勢部材により付勢された前記電極板の間隔が前記凸状電極よりも狭くなる、
請求項1に記載の車両用充電システム。
The power receiving unit,
A biasing member corresponding to each of the electrode plates,
Each of the biasing members,
Biasing the corresponding electrode plate toward the opposing electrode plate,
The pair of electrode plates,
In a state in which the convex electrodes are not inserted between the electrode plates, the distance between the electrode plates biased by the biasing member becomes narrower than that of the convex electrodes.
The vehicle charging system according to claim 1.
前記給電部は、さらに、
前記凸状電極を前記本体部の側面から前記突出方向に向けて突出させる突出状態と、前記凸状電極を前記突出方向と反対方向に向けて移動して前記本体部に収容する収容状態と、に切り替える切替機構を有する、
請求項1または2に記載の車両用充電システム。
The power supply unit further includes
A protruding state in which the convex electrode is projected from the side surface of the main body portion in the protruding direction, and an accommodation state in which the convex electrode is moved in a direction opposite to the protruding direction and accommodated in the main body portion, Has a switching mechanism to switch to
The vehicle charging system according to claim 1.
前記切替機構は、
前記本体部に収容され、前記凸状電極を前記突出方向に付勢する形状記憶合金製のコイルばねと、
前記コイルばねを加熱する加熱機構と、
を有し、
前記制御部は、
前記加熱機構により前記コイルばねを加熱し、前記コイルばねの伸長により前記凸状電極を前記突出方向に突出させる、
請求項3に記載の車両用充電システム。
The switching mechanism is
A coil spring made of a shape memory alloy that is housed in the main body and biases the convex electrode in the projecting direction,
A heating mechanism for heating the coil spring,
Have
The control unit is
The heating mechanism heats the coil spring, and the extension of the coil spring causes the convex electrode to project in the projecting direction.
The vehicle charging system according to claim 3.
JP2018207146A 2018-11-02 2018-11-02 Vehicle charging system Pending JP2020072611A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113794250A (en) * 2021-08-25 2021-12-14 山东建筑大学 Indoor charging system and method for inspection robot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113794250A (en) * 2021-08-25 2021-12-14 山东建筑大学 Indoor charging system and method for inspection robot
CN113794250B (en) * 2021-08-25 2024-05-07 山东建筑大学 Indoor charging system and method for inspection robot

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