JP6057200B2 - Electric vehicle charging device - Google Patents

Electric vehicle charging device Download PDF

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JP6057200B2
JP6057200B2 JP2011176246A JP2011176246A JP6057200B2 JP 6057200 B2 JP6057200 B2 JP 6057200B2 JP 2011176246 A JP2011176246 A JP 2011176246A JP 2011176246 A JP2011176246 A JP 2011176246A JP 6057200 B2 JP6057200 B2 JP 6057200B2
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connector
charging
main body
electric vehicle
charging cable
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JP2013042573A (en
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亘彦 戸田
亘彦 戸田
尚紀 福尾
尚紀 福尾
将司 中山
将司 中山
哲 上野
哲 上野
達哉 向井
達哉 向井
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Panasonic Intellectual Property Management Co Ltd
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    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Electric Propulsion And Braking For Vehicles (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は、例えば、特許文献１に記載されている充電ボックスがある。この充電ボックスは、前面が開口する箱形の本体ケースと、本体ケースの前面開口を開閉自在に閉塞する防水扉とを備える。本体ケースの底面(背面)に、充電コンセントや充電スイッチが配設され、充電ケーブルのプラグが充電コンセントに挿抜自在に接続される。充電ケーブルの先端に給電コネクタが設けられ、この給電コネクタが電気自動車の受電コネクタと接続される。   As a conventional charging device for an electric vehicle, for example, there is a charging box described in Patent Document 1. The charging box includes a box-shaped main body case having an open front surface and a waterproof door that closes the front opening of the main body case so as to be freely opened and closed. A charging outlet and a charging switch are arranged on the bottom (rear) of the main body case, and the plug of the charging cable is detachably connected to the charging outlet. A power feeding connector is provided at the tip of the charging cable, and this power feeding connector is connected to a power receiving connector of the electric vehicle.

特開平９−１０７６０５号公報JP-A-9-107605

ところで、特許文献１記載の従来例では、充電をしないときにプラグを充電コンセントから外して防水扉を閉じて施錠されるようになっているが、充電ケーブルの保管については何等考慮されていない。また、保管のために充電ケーブルが巻かれる場合、充電コネクタが邪魔になって巻取作業が行い難いという問題がある。   By the way, in the conventional example described in Patent Document 1, when the battery is not charged, the plug is removed from the charging outlet and the waterproof door is closed and locked. However, no consideration is given to storage of the charging cable. Further, when the charging cable is wound for storage, there is a problem that it is difficult to perform the winding operation because the charging connector becomes an obstacle.

本発明は、上記課題に鑑みて為されたものであり、充電ケーブルの保管場所を確保し且つ充電ケーブルの収納性の向上を図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 secure a storage location for a charging cable and improve the storage performance of the charging cable.

本発明の電気車両用充電装置は、先端に充電コネクタが着脱自在に接続される充電ケーブルと、前記充電ケーブルの後端を保持する本体とを備え、前記本体は、前記充電コネクタが取り外された前記充電ケーブルを収納する収納部と、前記収納部内に設けられて前記充電コネクタを保持する保持部とを有す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 having a charging connector detachably connected to a tip thereof, and a main body that holds a rear end of the charging cable, and the main body has the charging connector removed. It has a storage part which stores the charging cable, and a holding part which is provided in the storage part and holds the charging connector .

この電気車両用充電装置において、前記本体は、前記充電ケーブルから取り外された前記充電コネクタを収納する第２の収納部を有することが好ましい。   In the electric vehicle charging device, it is preferable that the main body has a second storage portion that stores the charging connector detached from the charging cable.

この電気車両用充電装置において、前記本体は、前記充電ケーブルを着脱自在に保持する保持部を有することが好ましい。   In this electric vehicle charging apparatus, it is preferable that the main body has a holding portion that detachably holds the charging cable.

この電気車両用充電装置において、非接触で電力を供給する非接触給電手段が前記充電コネクタ及び前記充電ケーブルに設けられることが好ましい。   In this electric vehicle charging device, it is preferable that non-contact power feeding means for supplying power in a non-contact manner is provided in the charging connector and the charging cable.

この電気車両用充電装置において、非接触で電力を供給する第２の非接触給電手段が前記充電ケーブル及び前記本体に設けられることが好ましい。   In this electric vehicle charging device, it is preferable that second charging power supply means for supplying power in a contactless manner is provided in the charging cable and the main body.

本発明の電気車両用充電装置は、充電ケーブルの保管場所を確保し且つ充電ケーブルの収納性の向上を図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 a storage place for the charging cable can be secured and the storage property of the charging cable can be improved.

本発明の実施形態を示し、(ａ)は使用(充電)状態の斜視図、(ｂ)は未使用(保管)状態の斜視図である。FIG. 2 shows an embodiment of the present invention, where (a) is a perspective view in a used (charged) state, and (b) is a perspective view in an unused (storage) state. 同上における充電ケーブルと充電コネクタが分離された状態の一部省略した斜視図である。It is the perspective view which abbreviate | omitted partially the state in which the charge cable and charge connector in the same as the above were isolate | separated. 同上における収納部の別の形態を示す斜視図である。It is a perspective view which shows another form of the accommodating part in the same as the above. (ａ)，(ｂ)は同上における第１コネクタの別の形態を示す一部省略した斜視図である。(a), (b) is the perspective view which abbreviate | omitted partially which shows another form of the 1st connector in the same as the above.

本実施形態の電気車両用充電装置(以下、「充電装置」と略す。)は、図１に示すように充電ケーブル１、充電コネクタ２、本体３などを備える。   The electric vehicle charging device (hereinafter abbreviated as “charging device”) according to the present embodiment includes a charging cable 1, a charging connector 2, a main body 3, and the like as shown in FIG.

本体３は、前面中央部が開口した角筒状に形成されて地面に立設される。本体３の開口部30は、扉31によって開閉自在に閉塞される。なお、扉31前面にはコ字状の取っ手31Aが取り付けられている。そして、本体３における開口部30の奥の空間が収納部32となる。なお、本体３及び扉31は鋼板などの金属板を加工して形成される。   The main body 3 is formed in a square tube shape with an open front central portion and is erected on the ground. The opening 30 of the main body 3 is closed by a door 31 so as to be freely opened and closed. A U-shaped handle 31A is attached to the front surface of the door 31. The space behind the opening 30 in the main body 3 becomes the storage portion 32. The main body 3 and the door 31 are formed by processing a metal plate such as a steel plate.

本体１内における収納部32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１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１を介した給電の入／切などを行うものである。   An electric leakage breaker, a charge controller, and the like (not shown) are accommodated in a portion above the accommodating portion 32 in the main body 1. The charge controller communicates with the electric vehicle via a communication line included in the charging cable 1 and turns on / off power supply via the charging cable 1 in accordance with an instruction from the electric vehicle.

充電ケーブル１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、後端が第２コネクタ５を介して充電コントローラに接続され、前端が第１コネクタ４を介して充電コネクタ２に接続されている。なお、充電コネクタ２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 1 is composed of a four-core type electric cable including a pair of power supply lines, a ground line, and the communication line. The rear end is connected to the charge controller via the second connector 5 and the front end is connected to the first connector 4. To the charging connector 2. In addition, the charging connector 2 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.

第１コネクタ４は、図２に示すように従来周知の丸形コネクタ(JIS C 5432 電子機器用丸形Ｒ０１コネクタ等参照)からなり、充電コネクタ２に設けられるプラグコネクタ40と、充電ケーブル１の先端に設けられるレセプタクルコネクタ41とを有する。レセプタクルコネクタ41の外周面には雄ねじが形成されており、プラグコネクタ40が有する接続ナット40Aがレセプタクルコネクタ41の雄ねじと螺合することで抜け止めが図られる。   As shown in FIG. 2, the first connector 4 is a conventionally known round connector (refer to JIS C 5432 round R01 connector for electronic equipment). The first connector 4 includes a plug connector 40 provided on the charging connector 2 and the charging cable 1. And a receptacle connector 41 provided at the tip. A male screw is formed on the outer peripheral surface of the receptacle connector 41, and the connection nut 40A of the plug connector 40 is screwed with the male screw of the receptacle connector 41 to prevent the receptacle connector 41 from coming off.

第２コネクタ５は、第１コネクタ４と同様の丸形コネクタからなり、充電ケーブル１の後端に設けられるプラグコネクタ50と、本体３の前面に配設されるレセプタクルコネクタ51とを有する。レセプタクルコネクタ51は本体３内で充電コントローラと接続される。また、図示は省略しているが、レセプタクルコネクタ51の外周面にも雄ねじが形成されており、プラグコネクタ50が有する接続ナットがレセプタクルコネクタ51の雄ねじと螺合することで抜け止めが図られる。つまり、充電ケーブル１は第２コネクタ５によって本体３に保持されており、第２コネクタ５が保持部に相当する。   The second connector 5 is a round connector similar to the first connector 4, and includes a plug connector 50 provided at the rear end of the charging cable 1 and a receptacle connector 51 provided on the front surface of the main body 3. The receptacle connector 51 is connected to the charge controller in the main body 3. Although not shown, a male screw is also formed on the outer peripheral surface of the receptacle connector 51, and the connection nut of the plug connector 50 is screwed with the male screw of the receptacle connector 51 to prevent the plug connector 50 from coming off. That is, the charging cable 1 is held by the main body 3 by the second connector 5, and the second connector 5 corresponds to a holding portion.

本体３の収納部32における後方の壁(以下、後壁と呼ぶ。)に、充電コネクタ２を保持するための保持部33と、充電ケーブル１を巻き取るための巻取部34とが設けられている。保持部33は、後壁の中央部から前方へ突出する３つの突起からなる。これら３つの突起は円柱状に形成されて三角形の頂点の位置に配置されている。つまり、図１(ｂ)に示すように、充電ケーブル１と分離された充電コネクタ２が３つの突起(保持部33)で囲まれた空間に収められて保持されることになる。巻取部34は、保持部33の周囲に配置された複数の突片からなる。そして、図１(ｂ)に示すように充電コネクタ２及び本体３から分離された充電ケーブル１が複数の突片(巻取部34)に対して円弧を描くように巻回されて保持される。   A holding wall 33 for holding the charging connector 2 and a winding section 34 for winding the charging cable 1 are provided on a rear wall (hereinafter referred to as a rear wall) in the storage section 32 of the main body 3. ing. The holding portion 33 includes three protrusions that protrude forward from the center portion of the rear wall. These three protrusions are formed in a cylindrical shape and are arranged at the positions of the apexes of the triangle. That is, as shown in FIG. 1B, the charging connector 2 separated from the charging cable 1 is housed and held in a space surrounded by three protrusions (holding portions 33). The winding unit 34 includes a plurality of projecting pieces arranged around the holding unit 33. Then, as shown in FIG. 1B, the charging cable 1 separated from the charging connector 2 and the main body 3 is wound and held so as to draw an arc around a plurality of projecting pieces (winding portions 34). .

而して、本実施形態では、充電コネクタ２が取り外された充電ケーブル１を本体３の収納部32に収納することができるので、充電ケーブル１を容易に保管することができる。また、充電コネクタ２を充電ケーブル１から取り外すことができるため、保管(収納)のために充電ケーブル１が巻かれる場合、充電コネクタ２が邪魔になることがなく、巻取作業の作業性が向上できるという利点がある。しかも、充電ケーブル１から取り外された充電コネクタ２が充電ケーブル１と一緒に収納部32に収納できるので、充電コネクタ２も容易に保管することができる。なお、本実施形態では充電ケーブル１を収納する収納部と充電コネクタ２を収納する第２の収納部が１つの収納部32で兼用されているが、それぞれ個別の収納部が本体３に設けられても構わない。   Thus, in the present embodiment, the charging cable 1 from which the charging connector 2 has been removed can be stored in the storage portion 32 of the main body 3, so that the charging cable 1 can be easily stored. Further, since the charging connector 2 can be detached from the charging cable 1, when the charging cable 1 is wound for storage (storage), the charging connector 2 does not get in the way, and the workability of the winding work is improved. There is an advantage that you can. In addition, since the charging connector 2 removed from the charging cable 1 can be stored in the storage portion 32 together with the charging cable 1, the charging connector 2 can be easily stored. In the present embodiment, the storage portion for storing the charging cable 1 and the second storage portion for storing the charging connector 2 are used as one storage portion 32, but separate storage portions are provided in the main body 3. It doesn't matter.

また、収納部32は上述の構成に限定されるものではなく、例えば、図３に示すように本体３前面の開口部30から前後方向にスライド自在に嵌め込まれる引出しであっても構わない。   The storage portion 32 is not limited to the above-described configuration, and may be a drawer that is slidably fitted in the front-rear direction from the opening 30 on the front surface of the main body 3 as shown in FIG.

ところで、第１コネクタ４や第２コネクタ５が上述した丸形コネクタで構成されている場合、着脱が繰り返されることで接続部分が摩耗する虞がある。また、電気自動車の充電に際して充電ケーブル１に数十ボルトの直流電圧が印加されるが、第１コネクタ４や第２コネクタ５のコンタクトが露出していると人が触れてしまう虞や、水没時に漏電してしまう虞がある。   By the way, when the 1st connector 4 and the 2nd connector 5 are comprised by the round connector mentioned above, there exists a possibility that a connection part may be worn by repeated attachment or detachment. Further, when the electric vehicle is charged, a DC voltage of several tens of volts is applied to the charging cable 1, but if the contacts of the first connector 4 and the second connector 5 are exposed, there is a risk of human touching, or when submerged. There is a risk of electrical leakage.

そこで、第１コネクタ４又は第２コネクタ５の少なくとも何れか一方のコネクタについて、コンタクトによる接触給電方式ではなく非接触給電方式を採用することが好ましい。以下、図４を参照して充電ケーブル１と充電コネクタ２を着脱自在に接続する第１コネクタ６を非接触給電方式のコネクタとした場合について説明する。   Therefore, it is preferable to adopt a non-contact power feeding method instead of a contact power feeding method using contacts for at least one of the first connector 4 and the second connector 5. Hereinafter, with reference to FIG. 4, the case where the 1st connector 6 which connects the charging cable 1 and the charging connector 2 detachably is made into the connector of a non-contact electric power feeding system is demonstrated.

第１コネクタ６は、充電ケーブル１に設けられる送電側コネクタ60と、充電コネクタ２に設けられる受電側コネクタ61とを有する。送電側コネクタ60は、Ｅ形磁心からなる送電側コア60Aと、送電側コア60Aに巻回される送電側コイル60Bと、送電側コア60A及び送電側コイル60Bを内部に収納した送電側コネクタハウジング60Cとを具備している。さらに、送電側コネクタハウジング60Cの外周面には、先端が先細りとなった複数の楔形の突起60Dが突設されている。なお、図示は省略しているが、送電側コネクタ60は商用電源周波数(50ヘルツ又は60ヘルツ)の交流電力を高周波電力に変換して送信側コイル60Bに供給する電力変換回路も具備している。   The first connector 6 includes a power transmission side connector 60 provided on the charging cable 1 and a power reception side connector 61 provided on the charging connector 2. The power transmission side connector 60 includes a power transmission side core 60A composed of an E-shaped magnetic core, a power transmission side coil 60B wound around the power transmission side core 60A, and a power transmission side connector housing in which the power transmission side core 60A and the power transmission side coil 60B are housed. 60C. In addition, a plurality of wedge-shaped protrusions 60D whose tips are tapered protrude from the outer peripheral surface of the power transmission side connector housing 60C. Although not shown, the power transmission side connector 60 also includes a power conversion circuit that converts AC power of commercial power supply frequency (50 Hz or 60 Hz) into high frequency power and supplies the high frequency power to the transmission side coil 60B. .

一方、受電側コネクタ61は、Ｅ形磁心からなる受電側コア61Aと、受電側コア61Aに巻回される受電側コイル61Bと、受電側コア61A及び受電側コイル61Bを内部に収納した受電側コネクタハウジング61Cとを具備している。さらに、受電側コネクタハウジング61Cの外周面には、複数のロック片61Dが設けられている。ロック片61Dは、弾性材料によって略Ｌ字形に形成され、後端部分が受電側コネクタハウジング61Cに固定され、先端部分が受電側コネクタハウジング61Cの先端よりも前方(図４における下方)に突出している。なお、図示は省略しているが、受電側コネクタ61は受電側コイル61Bに誘導される高周波電力を商用電源周波数の交流電力に変換して充電コネクタ２に供給する電力変換回路も具備している。   On the other hand, the power receiving side connector 61 includes a power receiving side core 61A made of an E-shaped magnetic core, a power receiving side coil 61B wound around the power receiving side core 61A, and a power receiving side in which the power receiving side core 61A and the power receiving side coil 61B are housed. And a connector housing 61C. Further, a plurality of lock pieces 61D are provided on the outer peripheral surface of the power receiving side connector housing 61C. The lock piece 61D is formed in an approximately L shape by an elastic material, the rear end portion is fixed to the power receiving side connector housing 61C, and the tip end portion projects forward (downward in FIG. 4) from the front end of the power receiving side connector housing 61C. Yes. Although not shown, the power receiving connector 61 also includes a power conversion circuit that converts the high frequency power induced in the power receiving coil 61B into AC power having a commercial power frequency and supplies the AC power to the charging connector 2. .

而して、図４(ｂ)に示すように送電側コネクタ60と受電側コネクタ61の先端面同士を突き合わせるように配置すると、送電側コア60Aと受電側コア61Aとが磁気結合し、送電側コイル60Ｂから受電側コイル61Bに高周波電力が伝送される。このとき、受電側コネクタハウジング61Cのロック片61Dの先端部が、送電側コネクタハウジング60Cの突起60Dに係合することで送電側コネクタ60と受電側コネクタ61との接続状態が保持(ロック)される。また、ロック片61Dを外側に撓ませれば、ロック片61Dの先端部と突起60Dとの係合を解除して充電コネクタ２と充電ケーブル１を分離することができる。   Thus, as shown in FIG. 4B, when the power transmission side connector 60 and the power reception side connector 61 are disposed so that the front end surfaces thereof are abutted with each other, the power transmission side core 60A and the power reception side core 61A are magnetically coupled to each other. High frequency power is transmitted from the side coil 60B to the power receiving side coil 61B. At this time, the connection portion between the power transmission side connector 60 and the power reception side connector 61 is held (locked) by the front end of the lock piece 61D of the power reception side connector housing 61C engaging with the protrusion 60D of the power transmission side connector housing 60C. The Further, if the lock piece 61D is bent outward, the engagement between the tip of the lock piece 61D and the protrusion 60D can be released and the charging connector 2 and the charging cable 1 can be separated.

上述のように第１コネクタ６を非接触給電方式のコネクタとすることにより、着脱が繰り返されることで接続部分が摩耗する虞や人が充電部に触れてしまう虞を軽減することができる。なお、本実施形態では充電ケーブル１と充電コネクタ２を着脱自在に接続する第１コネクタ６を非接触給電方式のコネクタとした場合について説明したが、充電ケーブル１と本体３を着脱自在に接続する第２コネクタ５も非接触給電方式のコネクタとしても構わない。   By using the first connector 6 as a non-contact power feeding type connector as described above, it is possible to reduce the possibility that the connection portion will be worn by repeated attachment and detachment and that the person may touch the charging portion. In the present embodiment, the case where the first connector 6 that removably connects the charging cable 1 and the charging connector 2 is a contactless power supply type connector has been described, but the charging cable 1 and the main body 3 are removably connected. The second connector 5 may also be a contactless power supply type connector.

なお、本実施形態では、本体３が地面に立設される電気車両用充電装置、いわゆる充電スタンドを例示したが、例えば、本体３が壁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であっても構わない。   In the present embodiment, an electric vehicle charging device in which the main body 3 is erected on the ground, a so-called charging stand, is illustrated. However, for example, an electric vehicle charging device in which the main body 3 is attached to a wall, a so-called charging box. It doesn't matter.

１ 充電ケーブル
２ 充電コネクタ
３ 本体
４ 第１コネクタ
５ 第２コネクタ
32 収納部 DESCRIPTION OF SYMBOLS 1 Charging cable 2 Charging connector 3 Main body 4 1st connector 5 2nd connector
32 compartment

Claims (5)

先端に充電コネクタが着脱自在に接続される充電ケーブルと、前記充電ケーブルの後端を保持する本体とを備え、前記本体は、前記充電コネクタが取り外された前記充電ケーブルを収納する収納部と、前記収納部内に設けられて前記充電コネクタを保持する保持部とを有することを特徴とする電気車両用充電装置。 A charging cable to which a charging connector is detachably connected to a tip; and a main body that holds a rear end of the charging cable; and the main body includes a storage unit that stores the charging cable from which the charging connector is removed ; An electric vehicle charging device comprising: a holding portion that is provided in the housing portion and holds the charging connector . 前記本体は、前記充電ケーブルから取り外された前記充電コネクタを収納する第２の収納部を有す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。   The charging device for an electric vehicle according to claim 1, wherein the main body has a second storage portion that stores the charging connector detached from the charging cable. 前記本体は、前記充電ケーブルを着脱自在に保持する保持部を有することを特徴とする請求項１又は２記載の電気車両用充電装置。   The charging device for an electric vehicle according to claim 1, wherein the main body includes a holding portion that detachably holds the charging cable. 非接触で電力を供給する非接触給電手段が前記充電コネクタ及び前記充電ケーブルに設けられることを特徴とする請求項１〜３の何れか１項に記載の電気車両用充電装置。   The charging device for an electric vehicle according to any one of claims 1 to 3, wherein non-contact power feeding means for supplying power in a non-contact manner is provided in the charging connector and the charging cable. 非接触で電力を供給する第２の非接触給電手段が前記充電ケーブル及び前記本体に設けられることを特徴とする請求項１〜４の何れか１項に記載の電気車両用充電装置。   5. The charging device for an electric vehicle according to claim 1, wherein a second non-contact power supply unit that supplies power in a non-contact manner is provided in the charging cable and the main body.
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