JP2012169176A - Charge plug for electric vehicle - Google Patents

Charge plug for electric vehicle Download PDF

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JP2012169176A
JP2012169176A JP2011029978A JP2011029978A JP2012169176A JP 2012169176 A JP2012169176 A JP 2012169176A JP 2011029978 A JP2011029978 A JP 2011029978A JP 2011029978 A JP2011029978 A JP 2011029978A JP 2012169176 A JP2012169176 A JP 2012169176A
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button
charging
plug
electric vehicle
outlet
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JP5686618B2 (en
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Haruhiko Murase
晴彦 村瀬
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Kawamura Electric Inc
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Kawamura Electric Inc
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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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Abstract

PROBLEM TO BE SOLVED: To provide a charge plug for an electric vehicle which prevents arc from occurring when the charge plug is connected with/disconnected from a charge outlet and also prevents the charge plug in the connection state from coming off accidentally.SOLUTION: A contact part, opening or closing an electric path 11, is provided in a plug body 3, and a first button 5 and a second button 7 are mechanically connected with the contact part so that the electric path 11 is opened by pressing operation of the first button 5 and the second button 7. Thus, this structure securely prevents the occurrence of arc by inserting/removing a charge plug 1 into/from a charge outlet with the first button 5 and the second button 7 pressed.

Description

本発明は、電気自動車を充電するための充電システムに用いられ、充電キャビネット等に設けられた充電コンセントに接続可能な電気自動車用充電プラグに関するものである。   The present invention relates to a charging plug for an electric vehicle that is used in a charging system for charging an electric vehicle and can be connected to a charging outlet provided in a charging cabinet or the like.

近年、電気自動車の需要が高まっており、それに伴って電気自動車の充電に係る種々の充電システムが考案されている。そして、一般的な充電システムでは、電気自動車の車載バッテリーと充電キャビネットに設けられている充電コンセントとをケーブルによって電気的に接続することにより、電気自動車を充電するようになっている（たとえば特許文献１）。   In recent years, demand for electric vehicles has increased, and various charging systems related to charging electric vehicles have been devised. In a general charging system, an electric vehicle is charged by electrically connecting a vehicle-mounted battery of the electric vehicle and a charging outlet provided in the charging cabinet with a cable (for example, Patent Documents). 1).

特開２０１０−４１７７９号公報JP 2010-41779 A

上記ケーブルの一端には、充電コンセントに差込接続するための電極やアースを備えた充電プラグが設けられている。しかしながら、従来の充電プラグには、充電回路を遮断するような構造が設けられていないため、たとえば充電中に誤って充電プラグを充電コンセントから抜き取ったりすると、抜き取り時にアークが発生する等のおそれがある。また、充電プラグと充電コンセントとを接続状態で維持する構造も備えていないため、充電プラグ自身の重量やケーブルの重量等により、充電中に充電プラグが不用意に充電プラグから脱落してしまうおそれもある。   One end of the cable is provided with a charging plug provided with an electrode and an earth for plugging into a charging outlet. However, since the conventional charging plug is not provided with a structure for interrupting the charging circuit, for example, if the charging plug is accidentally pulled out from the charging outlet during charging, there is a risk that an arc will occur when the charging plug is pulled out. is there. In addition, since there is no structure to maintain the charging plug and the charging outlet in a connected state, the charging plug may accidentally fall off from the charging plug during charging due to the weight of the charging plug itself or the weight of the cable. There is also.

そこで、本発明は、上記問題に鑑みなされたものであって、充電コンセントに対し充電プラグを接続／解除する際にアークが生じたりせず、また接続状態にある充電プラグが不用意に脱落したりすることもない電気自動車用充電プラグを提供しようとするものである。   Therefore, the present invention has been made in view of the above problem, and when connecting / releasing the charging plug to / from the charging outlet, no arc is generated, and the charging plug in the connected state is inadvertently dropped. The present invention intends to provide a charging plug for an electric vehicle that does not need to be used.

上記目的を達成するために、本発明のうち請求項１に記載の発明は、ケーブルの端部に設けられたプラグ本体に、電気自動車を充電するための充電コンセントへ接続される電極と、前記電極と前記ケーブルとを電気的に接続する電路とを備えた電気自動車用充電プラグであって、前記電路に、少なくとも１つの可動接点を有して自身を開閉可能な接点部を設けるとともに、前記プラグ本体に、押し込み操作により前記可動接点を移動させて前記電路を開放可能なボタンを設けたことを特徴とする。
請求項２に記載の発明は、請求項１に記載の発明において、前記プラグ本体に、前記充電コンセントへの接続状態において前記充電コンセントの近傍に設けられた被係止部に係止する係止部を設けたことを特徴とする。
請求項３に記載の発明は、請求項２に記載の発明において、前記ボタンと前記係止部とを一体的に設け、前記ボタンを押し込み操作することにより、前記電路が開放されるとともに前記係止部の前記被係止部への係止が解除されることを特徴とする。 In order to achieve the above object, the invention according to claim 1 of the present invention includes a plug body provided at an end of a cable, an electrode connected to a charging outlet for charging an electric vehicle, An electric vehicle charging plug comprising an electrode and an electric circuit for electrically connecting the cable, the electric circuit having at least one movable contact provided with a contact portion that can be opened and closed, and The plug body is provided with a button capable of opening the electric circuit by moving the movable contact by a pushing operation.
According to a second aspect of the present invention, in the first aspect of the present invention, the plug main body is locked to a locked portion provided in the vicinity of the charging outlet in a connected state to the charging outlet. A feature is provided.
According to a third aspect of the present invention, in the second aspect of the invention, the button and the locking portion are integrally provided, and the electric circuit is opened and the engagement is performed by pressing the button. The locking of the locking portion to the locked portion is released.

本発明によれば、電路に自身を開閉可能な接点部を設けるとともに、プラグ本体に、押し込み操作により電路を開放可能なボタンを設けているため、電気自動車用充電プラグを充電コンセントへ接続／解除する際にボタンを押し込み操作するだけで、アークの発生を確実に防止することができる。
また、請求項２に記載の発明によれば、プラグ本体に、充電コンセントへの接続状態において充電コンセントの近傍に設けられた被係止部に係止する係止部を設けているため、係止部と被係止部との係止により電気自動車用充電プラグを充電コンセントへ接続した状態のまま保持することができ、電気自動車用充電プラグが自身の重量等により不用意に抜け落ちる事態を効果的に防止することができる。
さらに、請求項３に記載の発明によれば、ボタンと係止部とを一体的に設け、ボタンを押し込み操作することにより、電路が開放されるとともに係止部の被係止部への係止が解除されるようにしているため、電気自動車用充電プラグの充電コンセントへの接続／解除作業を非常に容易に行うことができる上、たとえば電路を開放し忘れたまま係止部と被係止部との係止を解除し、電気自動車用充電プラグと充電コンセントとの接続を解除してしまうといった事態が起こりにくく、アークの発生を一層効果的に防止することができる。 According to the present invention, a contact portion capable of opening and closing itself is provided on the electric circuit, and a button that can open the electric circuit by a pushing operation is provided on the plug body, so that the electric vehicle charging plug is connected to / released from the charging outlet. The arc can be reliably prevented by simply pressing the button when performing the operation.
According to the second aspect of the present invention, since the plug body is provided with the locking portion that is locked to the locked portion provided near the charging outlet in the connected state to the charging outlet, The electric vehicle charging plug can be held in a state where it is connected to the charging outlet due to the locking between the locking portion and the locked portion, and the effect that the charging plug for the electric vehicle falls off accidentally due to its own weight, etc. Can be prevented.
According to the third aspect of the present invention, the button and the locking portion are provided integrally, and the electric path is opened and the locking portion is engaged with the locked portion by pressing the button. Since the lock is released, it is very easy to connect / disconnect the charging plug for the electric vehicle to / from the charging outlet. It is difficult to cause a situation where the engagement with the stop portion is released and the connection between the charging plug for the electric vehicle and the charging outlet is released, and the generation of the arc can be more effectively prevented.

充電プラグの斜視説明図である。It is an isometric view explanatory drawing of a charge plug. 充電プラグを側方から示した説明図である。It is explanatory drawing which showed the charge plug from the side. 充電プラグの断面を示した説明図である。It is explanatory drawing which showed the cross section of the charge plug.

以下、本発明の一実施形態となる電気自動車用充電プラグ（以下、単に充電プラグと称す）について、図面にもとづき詳細に説明する。   Hereinafter, an electric vehicle charging plug (hereinafter simply referred to as a charging plug) according to an embodiment of the present invention will be described in detail with reference to the drawings.

図１は、充電プラグ１の斜視説明図であり、図２は、充電プラグ１を側方から示した説明図である。また、図３は、充電プラグ１の断面を示した説明図である。尚、図２における左右方向を前後方向として説明する。
充電プラグ１は、電線が内蔵されたケーブル２の一端に設けられ、図示しない充電コンセントに接続されるものであって、円筒ケース状に形成されたプラグ本体３の先端面には、一対の電極４ａ、４ａと１つのアース４ｂとが突設されている。また、プラグ本体３の内部には、ケーブル内の電線と電極４ａ、４ａとを電気的に接続するための電路１１が設けられているとともに、該電路１１を開閉する２つの可動接点１２ａ、１２ｂからなる接点部が設けられている。そして、一方の可動接点１２ａは第１ボタン５と、他方の可動接点１２ｂは第２ボタン７と機械的に連結されており、第１ボタン５及び第２ボタン７を操作することにより接点部が開いて、電路１１を流れる電流が遮断されるようになっている。 FIG. 1 is a perspective explanatory view of the charging plug 1, and FIG. 2 is an explanatory view showing the charging plug 1 from the side. FIG. 3 is an explanatory view showing a cross section of the charging plug 1. In the following description, the left-right direction in FIG.
The charging plug 1 is provided at one end of a cable 2 with a built-in electric wire, and is connected to a charging outlet (not shown). A pair of electrodes is formed on the distal end surface of the plug body 3 formed in a cylindrical case shape. 4a, 4a and one earth 4b are projected. In addition, an electric path 11 for electrically connecting the electric wire in the cable and the electrodes 4a and 4a is provided inside the plug body 3, and two movable contacts 12a and 12b for opening and closing the electric path 11 are provided. The contact part which consists of is provided. One movable contact 12 a is mechanically connected to the first button 5 and the other movable contact 12 b is mechanically connected to the second button 7. By operating the first button 5 and the second button 7, the contact portion is changed. It opens so that the current flowing through the electric circuit 11 is cut off.

第１ボタン５は、プラグ本体３の基端部（ケーブル２接続側）上面に設けられており、プラグ本体３の前後方向に長い扁平で操作面が広い板状に形成され、プラグ本体３内部において可動接点１２ａと機械的に連結されている。該第１ボタン５は、プラグ本体３の内部に設けられた付勢部材１３によってプラグ本体３から突出する方向（可動接点１２ａについては接点部を閉じる方向）へ付勢されており、作業者が付勢部材１３の付勢力に抗して第１ボタン５をプラグ本体３内へ押し込み操作すると、可動接点１２ａが接点部を開く方向（反可動接点１２ｂ側）へ移動するようになっている。   The first button 5 is provided on the upper surface of the base end (cable 2 connection side) of the plug body 3 and is formed in a flat plate shape having a long and long operation surface in the front-rear direction of the plug body 3. Are mechanically connected to the movable contact 12a. The first button 5 is urged in a direction protruding from the plug body 3 (a direction in which the contact portion is closed for the movable contact 12a) by an urging member 13 provided in the plug body 3. When the first button 5 is pushed into the plug body 3 against the urging force of the urging member 13, the movable contact 12 a moves in the direction of opening the contact portion (on the non-movable contact 12 b side).

一方、第２ボタン７は、第１ボタン５の丁度裏側、すなわちプラグ本体３の中心を挟んで第１ボタン５に対向する位置に設けられている。該第２ボタン７は、扁平な板状に形成されているとともに、その前方に係止突起６が一体的に形成されてなり、プラグ本体３の内部で可動接点１２ｂと機械的に連結されている。係止突起６は、第２ボタン７よりもプラグ本体３からの突出量が大きく、第２ボタン７との段部６ａが図示しない被係止部へ係止する係止部として機能する。そして、該係止突起６を含む第２ボタン７は、プラグ本体３の内部に設けられた付勢部材１４によってプラグ本体３から突出する方向（可動接点１２ｂについては接点部を閉じる方向）へ付勢されており、作業者が付勢部材１４の付勢力に抗して第２ボタン７をプラグ本体３内へ押し込み操作すると、第２ボタン７は係止突起６と共にプラグ本体３内へ押し込まれ、可動接点１２ｂが接点部を開く方向（反可動接点１２ａ側）へ移動するようになっている。   On the other hand, the second button 7 is provided just behind the first button 5, that is, at a position facing the first button 5 across the center of the plug body 3. The second button 7 is formed in a flat plate shape, and a locking projection 6 is integrally formed in front of the second button 7, and is mechanically connected to the movable contact 12 b inside the plug body 3. Yes. The locking projection 6 has a larger protruding amount from the plug body 3 than the second button 7, and functions as a locking portion in which a step portion 6 a with the second button 7 is locked to a locked portion (not shown). The second button 7 including the locking protrusion 6 is attached in a direction protruding from the plug body 3 by the biasing member 14 provided in the plug body 3 (direction in which the contact portion is closed for the movable contact 12b). When the operator pushes the second button 7 into the plug body 3 against the urging force of the urging member 14, the second button 7 is pushed into the plug body 3 together with the locking protrusion 6. The movable contact 12b moves in the direction of opening the contact portion (on the side opposite to the movable contact 12a).

上記充電プラグ１を充電コンセントへ接続する際には、第１ボタン５及び第２ボタン７を共に押し込み、接点部を開いた状態で充電コンセントへ接続する。その後、第１ボタン５及び第２ボタン７の押し込みを解除すると、付勢部材１３、１４の付勢力により可動接点１２ａ、１２ｂが移動して接点部が閉じ電路１１に電流が流れる。また、第１ボタン５及び第２ボタン７は共に、プラグ本体３から突出する方向へ移動し、特に第２ボタン７の係止突起６が図示しないコンセントカバーに設けられた被係止部へ係止して、充電プラグ１の充電コンセントへの接続状態が保持される。
その後、充電プラグ１を充電コンセントから引き抜く際には、まず第１ボタン５及び第２ボタン７を押し込み、係止突起６の被係止部への係止を解除するとともに、接点部を開いて電路１１の通電を遮断した後、充電プラグ１を充電コンセントから引き抜けばよい。 When the charging plug 1 is connected to the charging outlet, both the first button 5 and the second button 7 are pushed in and connected to the charging outlet with the contact portions opened. Thereafter, when the pressing of the first button 5 and the second button 7 is released, the movable contacts 12 a and 12 b are moved by the urging force of the urging members 13 and 14, the contact portions are closed, and a current flows through the electric circuit 11. Further, both the first button 5 and the second button 7 move in a direction protruding from the plug body 3, and in particular, the locking projection 6 of the second button 7 is engaged with the locked portion provided on the outlet cover (not shown). The connection state of the charging plug 1 to the charging outlet is maintained.
Thereafter, when the charging plug 1 is pulled out from the charging outlet, first, the first button 5 and the second button 7 are pushed in, the locking projection 6 is unlocked from the locked portion, and the contact portion is opened. After the energization of the electric path 11 is cut off, the charging plug 1 may be pulled out from the charging outlet.

以上のような構成を有する充電プラグ１によれば、プラグ本体３内に電路１１を開閉する接点部を設けているとともに、第１ボタン５及び第２ボタン７を接点部と機械的に連結させ、第１ボタン５及び第２ボタン７の押し込み操作により電路１１を開放可能としている。したがって、第１ボタン５及び第２ボタン７を押し込み操作した状態で充電プラグ１の充電コンセントへ差し込み／抜き取りすることにより、アークの発生を確実に防止することができる。
また、プラグ本体３に、コンセントカバーに設けられた被係止部へ係止可能な係止部を有する係止突起６を設けているため、充電プラグ１を充電コンセントへ接続した状態のまま保持することができ、充電プラグ１が自身の重量等により不用意に抜け落ちる事態を効果的に防止することができる。 According to the charging plug 1 having the above-described configuration, a contact portion for opening and closing the electric circuit 11 is provided in the plug body 3, and the first button 5 and the second button 7 are mechanically connected to the contact portion. The electric circuit 11 can be opened by pressing the first button 5 and the second button 7. Therefore, by inserting / removing the charging plug 1 to / from the charging outlet while the first button 5 and the second button 7 are pushed in, the occurrence of an arc can be reliably prevented.
Further, since the plug body 3 is provided with a locking projection 6 having a locking portion that can be locked to the locked portion provided on the outlet cover, the charging plug 1 is held in a state of being connected to the charging outlet. It is possible to effectively prevent the charging plug 1 from being inadvertently dropped due to its own weight or the like.

さらに、係止突起６を第２ボタン７と一体的に設けているため、第２ボタン７を押し込み操作するだけで、係止突起６による係止の解除と電路１１の開放とを行うことができ、充電プラグ１の抜き取り作業を非常に容易に行うことができる上、係止突起６による係止の解除と電路１１の開放とが同時に行われるため、電路１１を開放し忘れた状態のまま係止突起６による係止が解除されるといった事態が起こりにくく、アークの発生を一層効果的に防止することができる。
さらにまた、第１ボタン５を操作面の広い扁平な板状に形成しているため、充電プラグ１を抜き差しする際に作業者がプラグ本体３を把持すると、略自然に第１ボタン５を押し込み操作することになる。したがって、第１ボタン５を押し込み操作することなく、充電プラグ１を抜き差ししてしまう事態を確実に防止することができ、アークの発生を極めて確実に防止することができる。
加えて、第２ボタン７を、プラグ本体３の中心を挟んで第１ボタン５と対向した位置に設けているため、作業者がプラグ本体３を把持した際に、両ボタン５、７を同時に押し込み操作しやすく、充電プラグ１の差し込み／抜き取り作業を一層容易に行うことができる。 Further, since the locking projection 6 is provided integrally with the second button 7, the locking release by the locking projection 6 and the opening of the electric circuit 11 can be performed only by pressing the second button 7. The charging plug 1 can be removed very easily, and the locking projection 6 is released and the electric circuit 11 is released at the same time, so that the electric circuit 11 is forgotten to be opened. It is difficult for a situation in which the locking projection 6 is unlocked, and the generation of an arc can be more effectively prevented.
Furthermore, since the first button 5 is formed in a flat plate shape with a wide operation surface, when the operator grasps the plug body 3 when inserting or removing the charging plug 1, the first button 5 is pushed in almost naturally. Will be operated. Therefore, it is possible to reliably prevent the charging plug 1 from being inserted and removed without pushing the first button 5 and to prevent the occurrence of arcing.
In addition, since the second button 7 is provided at a position facing the first button 5 across the center of the plug body 3, when the operator grips the plug body 3, the buttons 5 and 7 are simultaneously pressed. It is easy to push in and the charging plug 1 can be inserted / removed more easily.

なお、本発明に係る充電プラグは、上記実施形態の態様に何ら限定されるものではなく、プラグ本体等の構成は勿論、ボタンの数や係止部の有無等について、必要に応じて適宜変更することができる。   The charging plug according to the present invention is not limited to the aspect of the embodiment described above, and the number of buttons, the presence / absence of a locking portion, etc., as well as the configuration of the plug body and the like, are appropriately changed as necessary. can do.

たとえば、係止部については必ずしも設ける必要はないし、係止部を設けるとしても電路を開閉するボタンとは別体に設けてもよい。また、係止部が係止する被係止部の位置についてもコンセントカバーに何ら限定されることはなく、充電コンセントへの接続状態において係止可能な位置、すなわち充電コンセントの近傍であればよい。
さらに、上記実施形態では電路を開閉するボタンを２つ設けているが、１つだけでもよく、ボタンと機械的に連結された可動接点と、プラグ本体内に固定された固定接点とから接点部を構成することで対応すればよい。加えて、２つボタンを設ける場合でも、その位置について適宜設計変更可能であることは言うまでもない。 For example, the locking portion is not necessarily provided, and even if the locking portion is provided, it may be provided separately from the button for opening and closing the electric circuit. Further, the position of the locked portion that is locked by the locking portion is not limited to the outlet cover, and may be a position that can be locked in the connected state to the charging outlet, that is, in the vicinity of the charging outlet. .
Further, in the above embodiment, two buttons for opening and closing the electric circuit are provided, but only one may be used, and a contact portion is formed from a movable contact mechanically connected to the button and a fixed contact fixed in the plug body. This can be done by configuring In addition, even when two buttons are provided, it goes without saying that the design of the position can be changed as appropriate.

１・・充電プラグ、２・・ケーブル、３・・プラグ本体、４ａ・・電極、５・・第１ボタン、６・・係止突起、６ａ・・段部（係止部）、７・・第２ボタン、１１・・電路、１２ａ、１２ｂ・・可動接点（接点部）、１３、１４・・付勢部材。   1 ..Charging plug, 2 ..Cable, 3 ..Plug body, 4 a ..Electrode, 5 ..First button, 6 ..Lock projection, 6 a. Second button, 11... Electric circuit, 12 a, 12 b.. Movable contact (contact part), 13, 14.

Claims (3)

ケーブルの端部に設けられたプラグ本体に、電気自動車を充電するための充電コンセントへ接続される電極と、前記電極と前記ケーブルとを電気的に接続する電路とを備えた電気自動車用充電プラグであって、
前記電路に、少なくとも１つの可動接点を有して自身を開閉可能な接点部を設けるとともに、
前記プラグ本体に、押し込み操作により前記可動接点を移動させて前記電路を開放可能なボタンを設けたことを特徴とする電気自動車用充電プラグ。 A charging plug for an electric vehicle comprising: an electrode connected to a charging outlet for charging an electric vehicle; and an electric path for electrically connecting the electrode and the cable to a plug body provided at an end of the cable Because
In the electric circuit, a contact portion having at least one movable contact and capable of opening and closing itself is provided,
A charging plug for an electric vehicle, wherein the plug main body is provided with a button capable of opening the electric circuit by moving the movable contact by a pushing operation. 前記プラグ本体に、前記充電コンセントへの接続状態において前記充電コンセントの近傍に設けられた被係止部に係止する係止部を設けたことを特徴とする請求項１に記載の電気自動車用充電プラグ。   2. The electric vehicle according to claim 1, wherein the plug body is provided with a locking portion that is locked to a locked portion that is provided in the vicinity of the charging outlet in a connected state to the charging outlet. Charging plug. 前記ボタンと前記係止部とを一体的に設け、前記ボタンを押し込み操作することにより、前記電路が開放されるとともに前記係止部の前記被係止部への係止が解除されることを特徴とする請求項２に記載の電気自動車用充電プラグ。   The button and the locking portion are provided integrally, and by pushing the button, the electric circuit is opened and the locking of the locking portion to the locked portion is released. The charging plug for an electric vehicle according to claim 2, wherein the charging plug is an electric vehicle.
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JP2015023792A (en) * 2013-07-22 2015-02-02 エルエス産電株式会社Ｌｓｉｓ Ｃｏ．，Ｌｔｄ． Portable charger
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