JP5954650B2 - Electric vehicle charging device - Google Patents

Electric vehicle charging device Download PDF

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JP5954650B2
JP5954650B2 JP2011180723A JP2011180723A JP5954650B2 JP 5954650 B2 JP5954650 B2 JP 5954650B2 JP 2011180723 A JP2011180723 A JP 2011180723A JP 2011180723 A JP2011180723 A JP 2011180723A JP 5954650 B2 JP5954650 B2 JP 5954650B2
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winding
charging
charging cable
electric vehicle
peripheral surface
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JP2013043717A (en
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将司 中山
将司 中山
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Panasonic Intellectual Property Management Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • 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
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Description

本発明は、電気自動車などの電気車両に充電するための電気車両用充電装置に関する。   The present invention relates to an electric vehicle charging device for charging an electric vehicle such as an electric vehicle.

従来の電気車両用充電装置として、例えば、特許文献１に記載されているものがある。特許文献１記載の従来例は、外装を兼ねる筐体を有し、筐体には正面に開口し且つ背後壁までの深さを有する収容空間が形成されている。この収容空間には、２個の巻取ドラムが回動自在に収容されている。これらの巻取ドラムには充電ケーブルの基端が固定されている。充電ケーブルは、それぞれ巻取ドラムに巻取られ、先端には電気車両(電気自動車)の充電インレットと挿抜自在に接続される充電コネクタが設けられている。   As a conventional charging device for an electric vehicle, for example, there is one described in Patent Document 1. The conventional example described in Patent Document 1 has a housing that also serves as an exterior, and a housing space that opens to the front and has a depth to the back wall is formed in the housing. In this housing space, two winding drums are rotatably housed. The base end of the charging cable is fixed to these winding drums. Each of the charging cables is wound around a winding drum, and a charging connector that is detachably connected to a charging inlet of an electric vehicle (electric vehicle) is provided at the tip.

かかる従来例では、充電ケーブルの余長分が巻取ドラムに巻き取られているので、充電ケーブルの余長分を地面(あるいは床)に這わすことで美観を損なう虞がないものである。   In this conventional example, since the surplus length of the charging cable is wound on the winding drum, there is no possibility that the aesthetic appearance will be impaired by twisting the surplus length of the charging cable on the ground (or floor).

特開平１１−２６６５０９号公報JP-A-11-266509

ところで上記従来例では、巻取ドラムに巻き取られた充電ケーブルが弛んでしまい、その結果、美観が損なわれたり、充電ケーブルに巻癖がつくといった不具合の生じる虞がある。そして、充電ケーブルが弛まないように巻取ドラムに巻き取るには充電ケーブルにテンション(張力)をかける必要があり、巻取作業に手間がかかるという問題があった。   By the way, in the above-mentioned conventional example, the charging cable wound around the winding drum is loosened. As a result, there is a risk that the aesthetic appearance is deteriorated or the charging cable is wound. In order to wind the charging cable around the winding drum so that the charging cable does not loosen, it is necessary to apply tension (tension) to the charging cable.

本発明は、上記課題に鑑みて為されたものであり、巻取作業が繁雑になることを抑えつつ巻き取られた状態における充電ケーブルの弛みを低減することを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to reduce the slack of a charging cable in a wound state while suppressing the winding operation from being complicated.

本発明の電気自動車用充電装置は、先端に充電コネクタが設けられた充電ケーブルと、当該充電ケーブルを巻き取る巻取部と、開口部を有する本体とを備え、前記巻取部は、前記充電ケーブルが外周面に沿って巻回され且つ前記外周面の外径が拡縮自在である巻胴部を有し、前記巻胴部は、前記本体の開口部の奥の壁に固定して取り付けられる第１の巻胴体と、前記第１の巻胴体の下に配置され、前記第１の巻胴体とともに前記巻胴部を構成する第２の巻胴体とを有し、前記第２の巻胴体は、前記第１の巻胴体との距離を拡縮する方向に移動自在であることを特徴とする。 The charging device for an electric vehicle according to the present invention includes a charging cable provided with a charging connector at a tip, a winding unit that winds up the charging cable, and a main body having an opening, and the winding unit includes the charging unit. The cable has a winding drum portion that is wound along the outer peripheral surface and the outer diameter of the outer peripheral surface is freely adjustable, and the winding drum portion is fixedly attached to the wall at the back of the opening of the main body. A first winding body, and a second winding body which is disposed under the first winding body and forms the winding body part together with the first winding body, wherein the second winding body is The distance between the first winding body and the first winding body is movable in a direction to expand or contract .

この電気車両用充電装置において、前記巻胴部は、前記充電ケーブルに接触する外周面の少なくとも一部が曲面形状に形成されていることが好ましい。   In this electric vehicle charging apparatus, it is preferable that at least a part of an outer peripheral surface of the winding drum portion that contacts the charging cable is formed in a curved shape.

本発明の電気車両用充電装置は、巻取作業が繁雑になることを抑えつつ巻き取られた状態における充電ケーブルの弛みを低減することができるという効果がある。   The charging device for an electric vehicle of the present invention has an effect that slack of the charging cable in a wound state can be reduced while suppressing winding work from being complicated.

本発明の実施形態を示し、(ａ)は巻取部が縮小された状態の一部省略した斜視図、(ｂ)は巻取部が拡大された状態の一部省略した斜視図である。1A and 1B show an embodiment of the present invention, in which FIG. 1A is a partially omitted perspective view in a state where a winding portion is reduced, and FIG. 2B is a partially omitted perspective view in a state where a winding portion is enlarged. 同上の斜視図である。It is a perspective view same as the above. 同上の要部の断面図である。It is sectional drawing of the principal part same as the above. 同上の別の実施形態を示す斜視図である。It is a perspective view which shows another embodiment same as the above.

以下、特許文献１記載の従来例と同じく、電気自動車に充電するための電気車両用充電装置(充電スタンド)に本発明の技術思想を適用した実施形態について、図面を参照して詳細に説明する。ただし、建物の壁などに取り付けられる電気車両用充電装置(いわゆる充電ボックス)などに本発明の技術思想を適用することも可能である。   Hereinafter, an embodiment in which the technical idea of the present invention is applied to an electric vehicle charging device (charging station) for charging an electric vehicle as in the conventional example described in Patent Document 1 will be described in detail with reference to the drawings. . However, it is also possible to apply the technical idea of the present invention to a charging device for an electric vehicle (so-called charging box) attached to a building wall or the like.

本実施形態の電気車両用充電装置(以下、充電スタンドと呼ぶ。)は、図２に示すように本体１、充電ケーブル２、充電コネクタ３、巻取部４などを備える。本体１は、前面下部が開口した角筒状に形成されている。本体１の開口部10は、扉11によって開閉自在に閉塞される。そして、本体１における開口部10の奥に収納空間が形成されている。なお、本体１及び扉11は鋼板などの金属板を加工して形成される。   The electric vehicle charging device (hereinafter referred to as a charging stand) of the present embodiment includes a main body 1, a charging cable 2, a charging connector 3, a winding unit 4 and the like as shown in FIG. The main body 1 is formed in a rectangular tube shape with an opening at the lower front. The opening 10 of the main body 1 is closed by a door 11 so as to be freely opened and closed. A storage space is formed at the back of the opening 10 in the main body 1. The main body 1 and the door 11 are formed by processing a metal plate such as a steel plate.

本体１内における開口部10よりも上の部分には、図示しない漏電ブレーカや充電コントローラなどが収納される。なお、充電コントローラは、充電ケーブル２に含まれる通信線を介して電気自動車と通信し、電気自動車からの指示に応じて充電ケーブル２を介した給電の入／切などを行うものである。   A ground breaker, a charge controller and the like (not shown) are accommodated in a portion of the main body 1 above the opening 10. The charge controller communicates with the electric vehicle via a communication line included in the charging cable 2 and turns on / off power supply via the charging cable 2 in accordance with an instruction from the electric vehicle.

充電ケーブル２は、一対の電源線と接地線及び前記通信線を含む４心タイプの電気ケーブルからなり、後端が充電コントローラを介して漏電ブレーカに接続され、先端に充電コネクタ３が接続されている。充電コネクタ３は、電気自動車の車体に設けられている差込口(充電インレット)に挿抜自在に差込接続される。   The charging cable 2 is composed of a four-core type electric cable including a pair of power supply lines, a grounding line, and the communication line. The rear end is connected to the earth leakage breaker via the charge controller, and the charging connector 3 is connected to the front end. Yes. The charging connector 3 is inserted and connected so as to be freely inserted into and removed from an insertion port (charging inlet) provided in the body of the electric vehicle.

巻取部４は、充電ケーブル２が外周面に沿って巻回され且つ外周面の外径が拡縮自在である巻胴部を有している。本実施形態における巻胴部は２つの巻胴体40，41からなり、これら２つの巻胴体40，41が互いの距離を拡縮する方向に移動自在に構成されている。   The winding unit 4 has a winding drum part in which the charging cable 2 is wound along the outer peripheral surface and the outer diameter of the outer peripheral surface is freely expandable and contractible. The winding drum section in this embodiment is composed of two winding drum bodies 40 and 41, and these two winding drum bodies 40 and 41 are configured to be movable in a direction in which the distance between them increases or decreases.

一方の巻胴体40は、両端に半環状のフランジ40Aを有する半円筒形に形成され、フランジ40Aを上に向けるようにして、本体１における収納空間の奥の壁12に固定される。他方の巻胴体41は、一端に半環状のフランジ41Aを有し且つ他端に半円形状のフランジ41Bを有する半円筒形に形成され、フランジ41A，41Bを下に向けるようにして、本体１における収納空間の奥の壁12に上下方向に移動自在に取り付けられる。図１及び図３に示すように、長手方向を上下方向とする溝13が本体１の壁12に設けられている。そして、巻胴体41のフランジ41Bの中央部に挿通孔(図示せず)が貫通しており、この挿通孔に挿通されたボルト42の先端が溝13に挿通され、壁12の裏側においてボルト42の先端に溝13よりも幅広である平板状のナット43が螺合している(図３参照)。   One winding body 40 is formed in a semi-cylindrical shape having semi-annular flanges 40A at both ends, and is fixed to the wall 12 at the back of the storage space in the main body 1 with the flange 40A facing upward. The other winding body 41 is formed in a semi-cylindrical shape having a semi-annular flange 41A at one end and a semi-circular flange 41B at the other end, with the flanges 41A and 41B facing downward, the main body 1 Is attached to the wall 12 at the back of the storage space so as to be movable in the vertical direction. As shown in FIGS. 1 and 3, a groove 13 having a longitudinal direction in the vertical direction is provided in the wall 12 of the main body 1. An insertion hole (not shown) passes through the central portion of the flange 41B of the winding body 41, and the tip of the bolt 42 inserted through the insertion hole is inserted into the groove 13, and the bolt 42 on the back side of the wall 12 A flat nut 43, which is wider than the groove 13, is screwed to the front end (see FIG. 3).

而して、ボルト42が締め付けられていない状態では、溝13に沿って巻胴体41を自由に移動させることができ、ボルト42が締め付けられるとフランジ41B及びナット43で壁12が挟持されて巻胴体41の移動が規制される。つまり、一方の巻胴体40が壁12における溝13の上端よりも上に固定されているので、巻胴体41が溝13に沿って上下に移動することで巻胴部40，41の距離が拡縮され、その結果、巻取部４の外周面の外径が拡縮されることになる。   Thus, when the bolt 42 is not tightened, the winding body 41 can be freely moved along the groove 13, and when the bolt 42 is tightened, the wall 12 is sandwiched between the flange 41B and the nut 43 and wound. The movement of the body 41 is restricted. That is, since one winding body 40 is fixed above the upper end of the groove 13 in the wall 12, the distance between the winding body portions 40 and 41 is increased or decreased by moving the winding body 41 up and down along the groove 13. As a result, the outer diameter of the outer peripheral surface of the winding unit 4 is expanded or reduced.

上述のように構成される巻取部４は、以下のようにして使用される。まず、充電ケーブル２が巻き取られていない場合、図１(ａ)に示すように巻胴体41が溝13の上端近くに移動させられている。これにより、巻取部４の外周面に充電ケーブル２を巻き回す巻取作業が容易になる。ただし、予め巻かれた状態の充電ケーブル２が巻取部４の外周面に載せ掛けられる場合もあるが、この場合であっても載せ掛ける作業が容易になるという利点がある。   The winding unit 4 configured as described above is used as follows. First, when the charging cable 2 is not wound, the winding body 41 is moved near the upper end of the groove 13 as shown in FIG. Thereby, the winding operation of winding the charging cable 2 around the outer peripheral surface of the winding unit 4 is facilitated. However, there is a case where the charging cable 2 in a state of being wound in advance is placed on the outer peripheral surface of the winding unit 4, but even in this case, there is an advantage that the operation of placing the charging cable 2 becomes easy.

ここで、図１(ａ)に示すように巻取部４に巻き取られた充電ケーブル２に弛みが生じている場合、ボルト42を緩めて巻胴体41を下方に移動すれば、巻取部４の外周面の外径が拡大されて充電ケーブル２の弛みを低減することができる(図１(ｂ)参照)。一方、巻胴体41を上方に移動すれば、弛みが生じていないために充電ケーブル２を巻取部４から容易に取り外すことができる。このように本実施形態によれば、巻取作業が繁雑になることを抑えつつ巻き取られた状態における充電ケーブル２の弛みを低減することができる。   Here, as shown in FIG. 1A, when the charging cable 2 wound around the winding unit 4 is slack, the winding unit 41 can be moved downward by loosening the bolt 42 and moving the winding body 41 downward. The outer diameter of the outer peripheral surface of 4 can be enlarged, and the slack of the charging cable 2 can be reduced (see FIG. 1B). On the other hand, if the winding body 41 is moved upward, the charging cable 2 can be easily detached from the winding portion 4 because no slack has occurred. As described above, according to the present embodiment, it is possible to reduce the slack of the charging cable 2 in a wound state while suppressing the winding operation from being complicated.

また、充電ケーブル２と接する巻取部４(巻胴体40，41)の外周面が曲面形状に形成されているので、巻取部４の外周面の外径が拡大されて充電ケーブル２にテンションがかかった状態において充電ケーブル２の被覆に傷が付くことを防止できる。ただし、本実施形態では巻取部４の外周面全体が曲面形状に形成されているが、外周面の一部のみが曲面形状に形成されていても構わない。例えば、巻胴体40，41が角筒状に形成された場合、角の部分のみが曲面形状に形成されていればよい。   Moreover, since the outer peripheral surface of the winding part 4 (winding bodies 40 and 41) in contact with the charging cable 2 is formed in a curved surface shape, the outer diameter of the outer peripheral surface of the winding part 4 is enlarged and the charging cable 2 is tensioned. It is possible to prevent the charging cable 2 from being damaged in a state where the charging is applied. However, in the present embodiment, the entire outer peripheral surface of the winding unit 4 is formed in a curved shape, but only a part of the outer peripheral surface may be formed in a curved shape. For example, when the winding bodies 40 and 41 are formed in a rectangular tube shape, only the corner portions need only be formed in a curved surface shape.

さらに、本実施形態では下側の巻胴体41が移動自在とされているが、上側の巻胴体40が移動自在であってもよく、あるいは２つの巻胴体40，41が双方とも移動自在であっても構わない。また、巻胴体40，41の移動方向も上下方向に限定されず、例えば、移動方向が左右方向や斜め方向であっても構わない。   Further, in the present embodiment, the lower winding body 41 is movable, but the upper winding body 40 may be movable, or the two winding bodies 40 and 41 are both movable. It doesn't matter. Further, the moving direction of the winding bodies 40 and 41 is not limited to the vertical direction. For example, the moving direction may be the horizontal direction or the oblique direction.

なお、本実施形態では２つの巻胴体40，41で巻取部４が構成されているが、蛇腹構造のような拡縮構造を有する１つの巻胴体で巻取部４が構成されてもよい。また、本実施形態では巻取部４が本体１内に設けられているが、図４に示すように本体１の外側(前面、背面若しくは左右何れかの側面)に巻取部４が設けられてもよい。   In the present embodiment, the winding unit 4 is configured by the two winding bodies 40 and 41, but the winding unit 4 may be configured by one winding body having an expansion / contraction structure such as a bellows structure. Further, in the present embodiment, the winding unit 4 is provided in the main body 1, but as illustrated in FIG. 4, the winding unit 4 is provided on the outside (front surface, back surface, or left and right side surfaces) of the main body 1. May be.

１ 本体
２ 充電ケーブル
３ 充電コネクタ
４ 巻取部
40 巻胴体(巻胴部)
41 巻胴体(巻胴部) 1 Body 2 Charging cable 3 Charging connector 4 Winding part
40 Winding body (winding body)
41 Winding body (winding body)

Claims (2)

先端に充電コネクタが設けられた充電ケーブルと、当該充電ケーブルを巻き取る巻取部と、開口部を有する本体とを備え、前記巻取部は、前記充電ケーブルが外周面に沿って巻回され且つ前記外周面の外径が拡縮自在である巻胴部を有し、前記巻胴部は、前記本体の開口部の奥の壁に固定して取り付けられる第１の巻胴体と、前記第１の巻胴体の下に配置され、前記第１の巻胴体とともに前記巻胴部を構成する第２の巻胴体とを有し、前記第２の巻胴体は、前記第１の巻胴体との距離を拡縮する方向に移動自在であることを特徴とする電気車両用充電装置。 A charging cable provided with a charging connector at the tip; a winding part for winding the charging cable; and a main body having an opening. The winding part has the charging cable wound around an outer peripheral surface. And a first drum body that is fixedly attached to a wall at the back of the opening of the main body, and a first drum body that has an outer diameter of the outer peripheral surface that is freely expandable and contractable . And a second winding body that constitutes the winding body portion together with the first winding body, and the second winding body is a distance from the first winding body. A charging device for an electric vehicle, which is movable in a direction of expanding and contracting . 前記巻胴部は、前記充電ケーブルに接触する外周面の少なくとも一部が曲面形状に形成されていることを特徴とする請求項１記載の電気車両用充電装置。 2. The charging device for an electric vehicle according to claim 1 , wherein at least a part of an outer peripheral surface of the winding drum portion that contacts the charging cable is formed in a curved shape .
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