JP2012005325A - Electric vehicle charging system - Google Patents

Electric vehicle charging system Download PDF

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JP2012005325A
JP2012005325A JP2010140774A JP2010140774A JP2012005325A JP 2012005325 A JP2012005325 A JP 2012005325A JP 2010140774 A JP2010140774 A JP 2010140774A JP 2010140774 A JP2010140774 A JP 2010140774A JP 2012005325 A JP2012005325 A JP 2012005325A
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current
charging
charge
electric vehicle
charging system
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Toshihiko Inada
Mitsuo Kitahara
Haruhiko Murase
満雄 北原
晴彦 村瀬
利彦 稲田
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Daiwa House Industry Co Ltd
Kawamura Electric Inc
大和ハウス工業株式会社
河村電器産業株式会社
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PROBLEM TO BE SOLVED: To provide an electric vehicle charging system using midnight power and operating to prevent the living of a resident from being interfered with.SOLUTION: The electric vehicle charging system includes: a current transformer 14 detecting current flowing to a lead-in wire L1 to a distribution panel 1; a current monitoring device 3 outputting a charge stop signal when a current value exceeds a first threshold value based on current information of the current transformer 14 and outputting a charge start signal when the current value is less than a second threshold value smaller than the first prescribed value; and a charge controller 2 stopping conduction to a charge box 4 from the distribution panel 1 by receiving the charge stop signal and resuming conduction to the charge box 4 by receiving the charge start signal.

Description

本発明は、一般住宅において電気自動車を充電する電気自動車充電システムに関する。 The present invention relates to an electric vehicle charging system for charging electric vehicles in general homes.

各電力会社は、電力使用量が減少して余剰電力が発生し易い夜間(例えば、23時から7時の時間帯)は、電力料金を安くした時間帯別料金体系を設定している。 Each power company, power usage is easy at night and surplus power is generated by reduction (for example, the time zone of 7 o'clock 23), has set the cheaper the hourly fee structure the electricity rates. 電気自動車やプラグインハイブリッド自動車を家庭で充電する場合、この割安な料金体系を利用して深夜に充電するのが経済的であるため、この安い時間帯での充電が予想される。 If you want to charge the electric vehicles and plug-in hybrid car at home, to charge in the middle of the night to take advantage of this cheaper fee structure it is because it is economical, charging at this cheap time zone is expected.
そのため、タイマを備えて深夜電力帯に入ったら充電を開始する充電システムが提案されている(例えば、特許文献1参照)。 Therefore, charging system starts charging Once in midnight power strip includes a timer has been proposed (e.g., see Patent Document 1).

特開2010−115038号公報 JP 2010-115038 JP

しかし、IHクッキングヒーターや深夜電力を利用する深夜温水器等の大きな電流を必要とする機器が稼働している状態で電気自動車の充電まで同時に行う状況が発生すると、電流制限器が遮断動作して停電となってしまうことが予想される。 However, the situation simultaneously performed in a state in which devices that require a large current midnight water heater or the like that utilizes IH cooking heater or midnight electric power is running to the electric vehicle charging occurs, power failure current limiter is cut off operation it is expected that becomes. そうなると、生活に支障をきたしてしまう。 Sonaruto, resulting in disturbed to life.
そこで、本発明はこのような問題点に鑑み、深夜電力を利用する電気自動車充電システムであっても、居住者の生活に支障をきたさないよう動作する電気自動車充電システムを提供することを目的としている。 The present invention has been made in view of such problems, be an electric vehicle charging systems utilizing midnight electric power, for the purpose of providing an electric vehicle charging system that operates so as not to disturb the life of residents there.

上記課題を解決する為に、請求項1の発明は、電気自動車等を充電するための充電ケーブルを接続する充電ボックスを備え、分電盤内の分岐ブレーカの1つが前記充電ボックスに接続されて成る電気自動車充電システムであって、前記分電盤の引き込み線に流れる電流を検知する電流センサと、前記電流センサの情報を基に電流値が第1の所定値を越えたら充電停止信号を出力する電流監視装置と、前記充電停止信号を受けて前記分電盤から前記充電ボックスへの通電を停止する充電制御装置とを有することを特徴とする。 In order to solve the above problems, the invention of claim 1, comprising a charging box for connecting the charging cable for charging the electric vehicle or the like, one of the branch breakers in the distribution board is connected to the charge box an electric vehicle charging system comprising: a current sensor for detecting a current flowing through the lead-in of the distribution board, outputs a charge stop signal Once exceeds a predetermined value information a current value based on the first of said current sensor a current monitoring device for, and having a charge control device for stopping the current supply to the charging box from the distribution board receiving the charging stop signal.
この構成によれば、家庭全体で使用される電流が第1の所定値を越えたら電気自動車の充電が停止されるので、電流制限器が作動して家庭全体が停電となる事態を防ぐことが可能となり、電気自動車の充電が居住者の生活に支障をきたすようなことがない。 According to this configuration, since the current used throughout home electric vehicle charging Once beyond the first predetermined value is stopped, it prevents a situation in which the entire household current limiter is operated is a power failure possible and will, charging of electric vehicles there is no such thing as an obstacle in the lives of residents.

請求項2の発明は、請求項1に記載の構成において、前記第1の所定値が、前記分電盤に設置された電流制限器の動作電流値の80〜90%の電流値であることを特徴とする。 According to a second aspect of the invention, it in the configuration of claim 1, wherein the first predetermined value is 80 to 90% of the current value of the operating current value of the current limiter installed in the distribution board the features.
この構成によれば、電流制限器が動作する前に確実に電気自動車の充電を停止することができるし、制限電流近くに閾値を設定することで、頻繁に充電制御装置が遮断動作するような事態を防止できる。 According to this arrangement, such as to be able to stop surely charging of the electric vehicle before the current limiter is operated, by setting the threshold value near the limit current, frequent charging control apparatus operates blocked situation can be prevented.

請求項3の発明は、請求項1又は2に記載の構成において、前記電流監視装置は、前記電流センサの電流値が前記第1の所定値より小さい第2の所定値を下回ったら充電開始信号を出力し、前記充電制御装置は、前記充電ボックスへの通電を再開することを特徴とする。 The invention of claim 3, in the structure according to claim 1 or 2, wherein the current monitoring device, the charge start signal current value of the current sensor Once below the first predetermined value smaller than the second predetermined value outputs, the charge control device is characterized by resuming the power supply to the charging box.
この構成によれば、家庭で使用される電流が少なくなったら電気自動車の充電が再開されるので、一度充電操作するだけで充電が停止しても開始操作を必要とせず、居住者は充電操作を気にする必要がない。 According to this configuration, since the charging of electric vehicles When the current is low, which is used at home is resumed, without the need for a start operation be stopped charging only once charging operation, residents charging operation the there is no need to worry about.

請求項4の発明は、請求項1乃至3の何れかに記載の構成において、前記充電制御装置は、前記充電停止信号を受けて報知動作する充電停止報知部を有することを特徴とする。 A fourth aspect of the present invention, in the structure according to any one of claims 1 to 3, wherein the charge control device is characterized by having a charging stop notification section for notifying operation by receiving the charging stop signal.
この構成によれば、家庭で使用される電流が増加して電気自動車への充電が停止されたことが報知手段の動作で居住者に通知される。 According to this configuration, the charging of the electric vehicle current used at home is increased is stopped is notified to residents in the operation of the informing means. そのため、居住者は家電機器の使用状況を把握でき、必要な処置を取りやすい。 Therefore, residents can understand the usage of home appliances, easy to take the necessary measures.

本発明によれば、家庭全体で使用される電流が第1の所定値を越えたら電気自動車の充電が停止されるので、電流制限器が動作して停電となる事態を防ぐことができ、電気自動車の充電が居住者の生活に支障をきたすようなことがない。 According to the present invention, since the current used throughout home electric vehicle charging Once beyond the first predetermined value is stopped, it is possible to prevent a situation in which the current limiter is a power failure in operation, electrical there is no such thing as charging of the vehicle interfere in the lives of residents.
そして、使用される電流が少なくなったら電気自動車の充電が再開されるので、一度充電操作するだけで充電が停止しても開始操作を必要とせず、居住者は充電操作を気にする必要がない。 And, since the charging of electric vehicles Once you become less current to be used is resumed, once without the need for a only at the start of operation even if charging stops to charge operation, the residents need to worry about the charging operation Absent.

本発明に係る電気自動車充電システムの一例を示す構成図である。 An example of an electric vehicle charging system according to the present invention is a configuration diagram showing. 充電制御装置の回路ブロック図である。 It is a circuit block diagram of a charge control device.

以下、本発明を具体化した実施の形態を、図面に基づいて詳細に説明する。 Hereinafter, the embodiment embodying the present invention will be described in detail with reference to the drawings. 図1は本発明に係る電気自動車充電システムの一例を示す構成図であり、1は分電盤、2は充電制御装置、3は電流監視装置、4は充電ボックス、5は電気自動車である。 Figure 1 is a block diagram showing an example of an electric vehicle charging system according to the present invention, 1 distribution board, 2 is a charging control unit, 3 a current monitoring device, four charging box 5 is an electric car.
分電盤1には、電力会社との契約電流値を越えたら遮断動作する電流制限器11、過電流や漏電が発生したら遮断動作する主幹ブレーカ12、家庭内の各種電気機器が接続される複数の分岐ブレーカ13,13,・・、電流センサとしての変流器14が組み付けられている。 The distribution board 1, a current limiter 11 for interrupting operation Once beyond the contract current value of the power company, various electric appliances the main breaker 12, the home overcurrent or leakage is breaking operation Once occurred is connected to the plurality branch breakers 13, ..., the current transformer 14 as a current sensor has been assembled.

電流制限器11の入力部は、図示しない商用電源から家屋内に引き込まれる引き込み線L1が接続され、この引き込み線L1を流れる電流を変流器14が検出するよう電流制限器11の入力側に変流器14が設置されている。 Input of the current limiter 11 is connected to lead-L1 which is drawn into the house from the commercial power source (not shown), the current flowing through the lead-wire L1 to the input side of the current limiter 11 to a current transformer 14 detects current transformer 14 is installed. 電流制限器11の出力部は、主幹ブレーカ12の一次側端子に主電路L2により接続され、主幹ブレーカ12の二次側端子は銅バー等で形成された図示しない主幹電路を介して各分岐ブレーカ13,13,・・の一次側端子に接続されている。 Output of the current limiter 11 is connected to the main conduction path L2 on the primary side terminal of the main breaker 12, each branch breakers via the trunk path secondary side terminals (not shown) formed in the copper bars or the like of the main breaker 12 13 and 13, are connected to the primary side terminals of .... また、複数設けられた分岐ブレーカ13,13,・・の1つが、分岐電路L3を介して充電ボックス4に接続され、この分岐電路L3の途中に充電制御装置2が設けられている。 Further, a plurality provided branch breakers 13 and 13, one of the ..., are connected to the charging box 4 through the branch path L3, the charge control device 2 is provided in the middle of the branch path L3.
そして、電流監視装置3は、伝送線L4を介して変流器14に接続され、変流器14の情報を基に充電制御装置2に制御信号を出力する。 The current monitoring device 3 is connected to the current transformer 14 via a transmission line L4, and outputs a control signal to the charging control unit 2 based on the information of the current transformer 14. 充電ボックス4は、車庫等の駐車エリア近傍の家屋外壁等に設置され、電気自動車を充電するための充電ケーブル6を接続するコンセントを備えている。 Charging box 4 is provided with outlet connecting installed in a house outside wall of the parking area near such a garage or the like, the charging cable 6 for charging the electric vehicle.

尚、変流器14は、引き込み線L1を流れる電流を検出できれば良く、電流制限器11と主幹ブレーカ12の間の主電路L2に設けても良い。 Incidentally, current transformer 14 may if detecting a current flowing through the drop wires L1, may be provided in the main path L2 between the current limiter 11 and the main breaker 12. また、図1においてP1は深夜電力温水器、P2はIHクッキングヒータを示しており、分岐ブレーカ13の1つは深夜電力温水器P1が接続されているし、別の分岐ブレーカ13はIHクッキングヒータP2に接続されている。 Also, P1 is midnight power water heater in FIG. 1, P2 denotes an IH cooking heater, one to midnight power water heater P1 is connected to a branch breaker 13, to another branch breakers 13 IH cooking heater P2 It is connected.

図2は充電制御装置2の回路ブロック図を示している。 Figure 2 shows a circuit block diagram of the charging control unit 2. この図2に示すように、充電制御装置2は、タイマ回路21、分岐電路L3を開閉操作する開閉部22、開閉部22を制御する開閉制御部23、警報音を発報するブザー24を備え、電流監視装置3から出力される信号(充電停止信号、充電開始信号)を受けて分岐電路L3の接続/遮断を制御している。 As shown in FIG. 2, the charging control unit 2 is provided with a timer circuit 21, the branch path L3 closing unit 22 for opening and closing the opening and closing control unit 23 for controlling the opening and closing unit 22, a buzzer 24 for alarm of the alarm sound and it controls the connection / cutoff of the electric branch L3 receives a signal output from the current monitoring device 3 (charging stop signal, the charging start signal).

電流監視装置3は、変流器14が検出した電流情報を基に、充電制御装置2の制御信号を生成する制御信号発生部3aを有している。 Current monitoring device 3, based on the current information current transformer 14 detects, and a control signal generating unit 3a which generates a control signal of the charge control device 2. 制御信号発生部3aは、電流制限器11が作動する電流値より僅かに小さい第1の閾値、具体的には電流制限器11の動作電流値の80〜90%の電流値に設定された第1の電流値が設定されて、変流器14が検出した電流値がこの閾値を超えたら充電停止信号を充電制御装置2に出力する。 The control signal generating section 3a, the current limiter 11 is set to 80-90% of the current value of the operating current value of the first threshold value, in particular a current limiter 11 is slightly smaller than the current value to operate It is set first current value, current transformer 14 current value detected to output a charging stop signal Once beyond this threshold to the charging control unit 2. そして、この第1の閾値より十分小さい第2の閾値、例えば電流制限器11の動作電流値の約50%の電流値に設定された第2の閾値が設定されて、変流器14の検知電流がこの閾値を下回ったら充電開始信号を出力する。 Then, the first threshold value than sufficiently smaller second threshold, for example, the current limiter 11 operating current of about 50% of a second threshold value set to the current value is set for the detection of current transformer 14 current outputs a charge start signal Once below this threshold.

このように構成された電気自動車充電システムにより、次のように充電が制御される。 By thus configured electric vehicle charging system, the charging is controlled as follows. まず、タイマ回路21は、予め深夜電力時間帯(例えば、23時〜7時)が設定され、この時間帯の間は開閉制御部23に充電可能であることを通知する。 First, the timer circuit 21 in advance midnight power time zone (e.g., 23:00 pm to 7) is set to notify the during this time period can be charged in the switching control section 23.
開閉制御部23は、この通知を受けて深夜電力時間帯の間は開閉部22を閉操作し、分岐電路L3を通電状態とする。 Switching control section 23, this between notified of midnight power time zone the closing part 22 and closing operation, the electric branch L3 energized state. こうして、電気自動車5等が充電ボックス4に接続される場合、深夜電力時間帯において充電が行われる。 Thus, when the electric car 5 and the like are connected to the charging box 4, the charge in the midnight power time zone is carried out.

ただし、この状態で電気温水器が起動したり、IHクッキングヒータが使用されて、引き込み電路L1に流れる電流が第1の閾値を超えたら、電流監視装置3がそれを認識して充電停止信号を出力する。 However, the electric water heater or activated in this state, the IH cooking heater is used, draw When the current flowing through the conduction path L1 exceeds the first threshold value, the current monitoring unit 3 outputs the charge stop signal to recognize it to. すると、充電制御装置2の開閉制御部23が開閉部22を開操作して分岐電路L3を遮断する。 Then, the switching control section 23 of the charge control device 2 for blocking the branch path L3 closing portion 22 opening operation to. この結果、電気自動車5の充電は停止し、引き込み電路L1の電流は低下する。 As a result, electric vehicle charging 5 stops, current draw path L1 decreases. また、開閉制御部23は、充電停止信号を受けてブザー24を一定時間発報動作させる。 Further, switching control unit 23 operates a predetermined time onset report buzzer 24 receives the charge stop signal.

その後、例えばIHクッキングヒータの使用が終了し、引き込み電路L1の電流が更に低下して第2の閾値を下回ったら、電流監視装置3から充電開始信号が出力される。 Then, for example, use of the IH cooking heater is completed and falls below the second threshold reduced current draw path L1 is further charge start signal is output from the current monitoring device 3. その結果、充電制御装置2は開閉部22を閉操作して分岐電路L3を接続し、電気自動車5の充電が再開される。 As a result, the charging control device 2 the closing unit 22 and closing operation by connecting the branch path L3, the charging of the electric vehicle 5 is resumed.
尚、電流制御装置2は、開閉部22が開状態のままで電気自動車5が充電されていない時に、充電停止信号を受けてもブザー24を発報させない。 The current control unit 2, when the opening and closing section 22 is an electric vehicle 5 remains open is not charged and does not alarm buzzer 24 also receives a charge stop signal.

このように、家庭全体で使用される電流が、電流制限器11が遮断動作する電流値より小さい第1の閾値を越えたら電気自動車5の充電が停止されるので、電流制限器11が作動して家庭全体が停電となる事態を防ぐことができ、電気自動車5の充電が居住者の生活に支障をきたすようなことがない。 Thus, the current used throughout home, the charging of the electric vehicle 5 When exceeding the current value is smaller than a first threshold current limiter 11 operates cutoff is stopped, the current limiter 11 is activated the entire family is able to prevent a situation in which a power failure, the charging of electric vehicles 5 there is no such thing as an obstacle in the lives of residents Te.
そして、電流監視装置3が判定する第1の閾値を、電流制限器11が遮断動作する電流値の80〜90%に設定しているので、制限電流値近くに閾値が設定され、頻繁に充電制御装置が遮断動作するような事態を防止できる。 Then, the first threshold is determined the current monitoring device 3, the current limiter 11 is set to 80-90% of the current value to be operated blocking threshold is set near the limit current value, frequently charged such a situation that the control device operates blocking can be prevented.
また、電気自動車5の充電が停止されても、家庭で使用される電流が減少したら電気自動車5の充電が再開されるので、一度充電操作したら充電が停止しても開始操作を必要とせず、居住者は充電操作を気にする必要がない。 In addition, even if the charging of the electric car 5 is stopped, the charging of electric vehicles 5 When the current to be used at home is reduced is resumed, without the need for a start operation even if charging stops When you have once charging operation, residents do not need to worry about the charging operation.
更に、使用電流の増加により電気自動車への充電が停止されたことをブザー24の発報により居住者に通知するので、居住者は家電機器の使用状況を把握でき、必要な処置を取りやすい。 In addition, since the charging of electric vehicles due to the increase of the current used to notify the resident by the alarm of the buzzer 24 that it has been stopped, residents can understand the usage of home appliances, easy to take the necessary measures.

尚、上記実施形態の電気自動車充電システムは、電気自動車5やプラグインハイブリッド自動車の充電に良好に適用されるものであるが、単にバッテリー等の特定の負荷を充電したり駆動する場合にも適用できるものである。 The electric vehicle charging system of the above embodiment is intended to be satisfactorily applied to the charging of electric vehicles 5 and plug-in hybrid vehicle, simply applied to a case of driving or charge a particular load, such as a battery it is those that can be.
また、充電を停止した際に報知動作する充電停止報知部としてのブザー24は、音声メッセージで報音する構成としても良い。 Further, a buzzer 24 serving as charging stop notification section for notifying operation when stopping the charging may be configured to sounding voice message.

1・・分電盤、2・・充電制御装置、3・・電流監視装置、4・・充電ボックス、3a・・制御信号発生部、5・・電気自動車、11・・電流制限器、12・・主幹ブレーカ、13・・分岐ブレーカ、14・・変流器(電流センサ)、21・・タイマ回路、22・・開閉部、23・・開閉制御部、24・・ブザー(充電停止報知部)、L1・・引き込み線、L3・・分岐電路。 1 .. distribution board, 2 ... charging control device, 3 ... current monitoring device, 4 ... charging box, 3a ... control signal generating unit, 5 ... electric vehicle, 11 ... current limiter, 12- - master breaker, 13 ... branch breakers, 14 ... current transformer (current sensor), 21 ... timer circuit, 22 ... opening portion, 23 ... opening and closing control unit, 24 ... buzzer (charging stop notification unit) , L1 · · drop line, L3 · · electric branch.

Claims (4)

  1. 電気自動車等を充電するための充電ケーブルを接続する充電ボックスを備え、分電盤内の分岐ブレーカの1つが前記充電ボックスに接続されて成る電気自動車充電システムであって、 Comprising a charging box for connecting the charging cable for charging the electric vehicle or the like, one of the branch breakers in the distribution panel is an electric vehicle charging system comprising connected to the charging box,
    前記分電盤の引き込み線に流れる電流を検知する電流センサと、 A current sensor detecting a current flowing through the lead-in of the distribution board,
    前記電流センサの情報を基に電流値が第1の所定値を越えたら充電停止信号を出力する電流監視装置と、 A current monitoring device current value based on information of the current sensor outputs a charge stop signal Once beyond the first predetermined value,
    前記充電停止信号を受けて前記分電盤から前記充電ボックスへの通電を停止する充電制御装置とを有することを特徴とする電気自動車充電システム。 Electric vehicle charging system; and a charge control device for stopping the current supply from the distribution board receiving the charging stop signal to the charge box.
  2. 前記第1の所定値が、前記分電盤に設置された電流制限器の動作電流値の80〜90%の電流値であることを特徴とする請求項1記載の電気自動車充電システム。 It said first predetermined value, the electric vehicle charging system of claim 1, wherein the 80 to 90% of the current value of the operating current value of the installed current limiter in the distribution board.
  3. 前記電流監視装置は、前記電流センサの電流値が前記第1の所定値より小さい第2の所定値を下回ったら充電開始信号を出力し、 Said current monitoring device, the current value of the current sensor outputs a charge start signal Once below the first predetermined value smaller than the second predetermined value,
    前記充電制御装置は、前記充電ボックスへの通電を再開することを特徴とする請求項1又は2記載の電気自動車充電システム。 The charge control device, an electric vehicle charging system according to claim 1 or 2, wherein the resuming the power supply to the charging box.
  4. 前記充電制御装置は、前記充電停止信号を受けて報知動作する充電停止報知部を有することを特徴とする請求項1乃至3の何れかに記載の電気自動車充電システム。 The charge control device, an electric vehicle charging system according to any one of claims 1 to 3, characterized in that it has a charging stop notification section for notifying operation by receiving the charging stop signal.
JP2010140774A 2010-06-21 2010-06-21 Electric vehicle charging system Pending JP2012005325A (en)

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