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JP5751139B2 - Vehicle charging / discharging device - Google Patents

Vehicle charging / discharging device Download PDF

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Publication number
JP5751139B2
JP5751139B2 JP2011243699A JP2011243699A JP5751139B2 JP 5751139 B2 JP5751139 B2 JP 5751139B2 JP 2011243699 A JP2011243699 A JP 2011243699A JP 2011243699 A JP2011243699 A JP 2011243699A JP 5751139 B2 JP5751139 B2 JP 5751139B2
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charging
discharge
contact
discharging
electromagnetic contactor
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JP2013102565A (en
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直視 岡村
直視 岡村
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Toyota Industries Corp
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Toyota Industries Corp
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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
    • 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

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

Description

本発明は、充放電プラグを車両に接続し、その車両に搭載された蓄電池を充電する、又は蓄電池から放電する車両用充放電装置に関する。   The present invention relates to a charging / discharging device for a vehicle that connects a charging / discharging plug to a vehicle and charges or discharges a storage battery mounted on the vehicle.

ＥＶ（Electric Vehicle）やＰＨＶ（Plug in Hybrid Vehicle）などの車両には、当該車両の原動機となる電動機（モータ）への供給電力を蓄える蓄電池が搭載されており、その蓄電池を充電するための充電装置が考えられている。一方、例えば災害時の電力供給不足を補う目的で、車両の蓄電池に蓄えられている電力を放電させるための放電装置も考えられている。例えば、特許文献１，２には、車両の蓄電池に対して充電及び放電を行うことが可能な充放電装置が開示されている。   Vehicles such as EVs (Electric Vehicles) and PHVs (Plug in Hybrid Vehicles) are equipped with storage batteries that store the power supplied to the motors (motors) that serve as the prime movers of the vehicles. Charging for charging the storage batteries A device is considered. On the other hand, for example, a discharge device for discharging electric power stored in a storage battery of a vehicle has been considered for the purpose of compensating for a shortage of power supply during a disaster. For example, Patent Documents 1 and 2 disclose a charge / discharge device that can charge and discharge a storage battery of a vehicle.

特開平１１−１７８２３４号公報JP-A-11-178234 特開２００７−２５２１１７号公報JP 2007-252117 A

ところで、充放電装置では、充電と放電を同時に行う可能性が低いことを考慮すると、充電時と放電時で共通利用可能なプラグを用意しておいた方が、それぞれで専用のプラグを用意しておくことよりも利便性が良く、好ましい。このため、充放電装置において共通利用可能なプラグを採用する場合には、例えば充電中に放電に切り換わってしまうなど、意図しない要因によって状態が切り換わらないようにしておく必要がある。   By the way, considering that charging and discharging devices are unlikely to be charged and discharged at the same time, it is better to prepare plugs that can be used in common during charging and discharging. It is more convenient and preferable. For this reason, when a plug that can be commonly used in the charging / discharging device is employed, it is necessary to prevent the state from being switched due to an unintended factor, for example, switching to discharging during charging.

この発明は、このような従来の技術に存在する問題点に着目してなされたものであり、その目的は、充電状態と放電状態を確実に切り換えることができる充放電装置を提供することにある。   This invention was made paying attention to the problem which exists in such a prior art, and the objective is to provide the charging / discharging apparatus which can switch a charge state and a discharge state reliably. .

上記問題点を解決するために、請求項１に記載の発明は、充放電プラグを車両に接続し、その車両に搭載された蓄電池を充電する、又は前記蓄電池から放電する車両用充放電装置において、充電時に、充電用経路を通電状態に切り換える充電時切換手段と、放電時に、放電用経路を通電状態に切り換える放電時切換手段と、充電時には前記充電用経路を通電状態へ切り換えるための第１の駆動信号を前記充電時切換手段に出力するとともに、放電時には前記放電用経路を通電状態へ切り換えるための第２の駆動信号を前記放電時切換手段に出力する切換制御手段と、を備え、前記充電時切換手段には、前記充電用経路を通電状態と非通電状態に切り換える第１の接点と、前記第１の接点とは逆の状態を取り得る第２の接点と、を含み、前記放電時切換手段には、前記放電用経路を通電状態と非通電状態に切り換える第３の接点と、前記第３の接点とは逆の状態を取り得る第４の接点と、を含み、前記第１の駆動信号を、前記放電時切換手段の前記第４の接点を介して前記充電時切換手段に入力する一方で、前記第２の駆動信号を、前記充電時切換手段の前記第２の接点を介して前記放電時切換手段に入力することを要旨とする。   In order to solve the above problems, the invention according to claim 1 is a vehicle charging / discharging device for connecting a charging / discharging plug to a vehicle and charging a storage battery mounted on the vehicle or discharging from the storage battery. A charging time switching means for switching the charging path to the energized state during charging, a discharging time switching means for switching the discharging path to the energized state during discharging, and a first for switching the charging path to the energized state during charging. And a switching control means for outputting a second driving signal for switching the discharging path to the energized state at the time of discharging. The charging switching means includes a first contact that switches the charging path between an energized state and a non-energized state, and a second contact that can take a state opposite to the first contact. The time switching means includes a third contact that switches the discharge path between an energized state and a non-energized state, and a fourth contact that can take a state opposite to the third contact. Is input to the charging time switching means via the fourth contact point of the discharging time switching means, while the second driving signal is input to the second contact point of the charging time switching means. To the switching means at the time of discharge.

これによれば、充電中、充電時切換手段の第１の接点により充電用経路が通電状態とされている時、第２の接点は第１の接点と逆の状態、すなわち非通電状態となる。そして、放電用経路を通電状態に切り換えるための第２の駆動信号は、充電時切換手段の第２の接点を介して放電時切換手段に入力される。このため、充電中は、第２の駆動信号が出力されても、その第２の駆動信号は第２の接点が非通電状態とされていることにより、放電時切換手段に入力されない。また、放電中、放電時切換手段の第３の接点により放電用経路が通電状態とされている時、第４の接点は第３の接点とは逆の状態、すなわち非通電状態となる。そして、充電用経路を通電状態に切り換えるための第１の駆動信号は、放電時切換手段の第４の接点を介して充電時切換手段に入力される。このため、放電中は、第１の駆動信号が出力されても、その第１の駆動信号は第４の接点が非通電状態とされていることにより、充電時切換手段に入力されない。これにより、充電及び放電の何れか一方が行われている場合は、他方に切り換わらない。したがって、意図しない要因によって状態が切り換わることなく、充電状態と放電状態を確実に切り換えることができる。   According to this, during charging, when the charging path is energized by the first contact of the charging switching means, the second contact is in a state opposite to the first contact, that is, a non-energized state. . Then, the second drive signal for switching the discharging path to the energized state is input to the discharging time switching means via the second contact of the charging time switching means. For this reason, even if the second drive signal is output during charging, the second drive signal is not input to the discharging switching means because the second contact is in a non-energized state. Further, during discharge, when the discharge path is energized by the third contact of the discharge switching means, the fourth contact is in a state opposite to the third contact, that is, a non-energized state. The first drive signal for switching the charging path to the energized state is input to the charging time switching means via the fourth contact of the discharging time switching means. For this reason, during discharging, even if the first drive signal is output, the first drive signal is not input to the switching unit during charging because the fourth contact is in a non-energized state. Thereby, when any one of charge and discharge is performed, it does not switch to the other. Therefore, the charging state and the discharging state can be reliably switched without switching the state due to an unintended factor.

請求項２に記載の発明は、請求項１に記載の車両用充放電装置において、前記充電時切換手段には、前記第２の接点と同一状態を取り得る第５の接点をさらに含み、前記放電時切換手段には、前記第４の接点と同一状態を取り得る第６の接点をさらに含み、前記第５の接点、前記第６の接点、及び放電抵抗により、前記充電用経路の残留電圧を放電する放電用回路を構成したことを要旨とする。 According to a second aspect of the present invention, in the vehicle charging / discharging device according to the first aspect, the charging time switching means further includes a fifth contact capable of taking the same state as the second contact, The discharging switching means further includes a sixth contact that can take the same state as the fourth contact, and the residual voltage of the charging path is determined by the fifth contact, the sixth contact, and the discharge resistance. The gist of the present invention is that a discharge circuit for discharging is constructed.

これによれば、充電終了後に充放電プラグを非接続状態とした場合に、充電用経路の残留電圧を放電用回路によって放電させることができる。   According to this, when the charge / discharge plug is brought into a disconnected state after completion of charging, the residual voltage in the charging path can be discharged by the discharging circuit.

本発明によれば、充電状態と放電状態を確実に切り換えることができる。   According to the present invention, the charge state and the discharge state can be switched reliably.

車両用充放電装置の構成を示すブロック図。The block diagram which shows the structure of the charging / discharging apparatus for vehicles. 充電時の車両用充放電装置の動作を示すブロック図。The block diagram which shows operation | movement of the charging / discharging apparatus for vehicles at the time of charge. 放電時の車両用充放電装置の動作を示すブロック図。The block diagram which shows operation | movement of the charging / discharging apparatus for vehicles at the time of discharge.

（第１の実施形態）
以下、本発明を具体化した一実施形態を図１〜図３にしたがって説明する。
図１に示すように、車両用充放電装置１０は、電力系統１１に接続されるとともに、車両１２に搭載される蓄電池１３を充電する場合、又は蓄電池１３から放電する場合には充放電プラグＰを介して車両１２に接続される。車両用充放電装置１０は、充電時に、電力供給源となる電力系統１１と車両１２の間の充電用経路Ｋ１を通電状態に切り換える充電時切換手段としての充電側電磁接触器（マグネットコンタクタ）ＭＣ１を備えている。そして、充電側電磁接触器ＭＣ１は、切換制御手段としての充電側コントローラ１４に電気的に接続されている。充電側コントローラ１４は、電気信号を出力することにより、充電側電磁接触器ＭＣ１を構成する接点を開閉させる。 (First embodiment)
Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the vehicle charging / discharging device 10 is connected to an electric power system 11, and when charging or discharging the storage battery 13 mounted on the vehicle 12, the charging / discharging plug P It is connected to the vehicle 12 via. The charging / discharging device 10 for a vehicle is a charging-side electromagnetic contactor (magnet contactor) MC1 as a charging switching means for switching a charging path K1 between the power system 11 serving as a power supply source and the vehicle 12 to an energized state during charging. It has. The charging-side electromagnetic contactor MC1 is electrically connected to a charging-side controller 14 as switching control means. The charge side controller 14 opens and closes the contact which comprises charge side electromagnetic contactor MC1 by outputting an electrical signal.

また、車両用充放電装置１０は、放電時に、電力放出先となる電力系統１１と車両１２の間の放電用経路Ｋ２を通電状態に切り換える放電時切換手段としての放電側電磁接触器（マグネットコンタクタ）ＭＣ２を備えている。そして、放電側電磁接触器ＭＣ２は、切換制御手段としての放電側コントローラ１５に電気的に接続されている。放電側コントローラ１５は、電気信号を出力することにより、放電側電磁接触器ＭＣ２を構成する接点を開閉させる。   In addition, the vehicle charging / discharging device 10 includes a discharge-side electromagnetic contactor (magnet contactor) as a discharge-time switching unit that switches a discharge path K2 between the power system 11 serving as a power discharge destination and the vehicle 12 to an energized state during discharge. ) MC2 is provided. The discharge-side electromagnetic contactor MC2 is electrically connected to a discharge-side controller 15 as switching control means. The discharge-side controller 15 opens and closes the contacts constituting the discharge-side electromagnetic contactor MC2 by outputting an electrical signal.

また、車両用充放電装置１０は、充電側コントローラ１４と放電側コントローラ１５を制御するコントローラ１６を備えているとともに、コントローラ１６は、充電側コントローラ１４と放電側コントローラ１５に双方向通信可能に接続されている。コントローラ１６は、充電の実行指示を充電側コントローラ１４に出力するとともに、放電の実行指示を放電側コントローラ１５に出力する。また、車両用充放電装置１０は、電源１７を備えているとともに、電源１７は、電力系統１１と充電側電磁接触器ＭＣ１の間、すなわち充電側電磁接触器ＭＣ１の入力側となる１次側に接続されている。そして、電源１７は、充電側コントローラ１４、放電側コントローラ１５、及びコントローラ１６のそれぞれに電気的に接続されており、電力を供給する。また、充電側電磁接触器ＭＣ１の１次側には、過電流が流れた場合に電流の流れを遮断する電力遮断部１８が接続されている。   The vehicle charging / discharging device 10 includes a controller 16 that controls the charging-side controller 14 and the discharging-side controller 15, and the controller 16 is connected to the charging-side controller 14 and the discharging-side controller 15 so as to be capable of bidirectional communication. Has been. The controller 16 outputs a charge execution instruction to the charge-side controller 14 and outputs a discharge execution instruction to the discharge-side controller 15. Moreover, while the vehicle charging / discharging apparatus 10 is provided with the power supply 17, the power supply 17 is between the electric power grid | system 11 and charge side electromagnetic contactor MC1, ie, the primary side used as the input side of charge side electromagnetic contactor MC1. It is connected to the. The power source 17 is electrically connected to each of the charging side controller 14, the discharging side controller 15, and the controller 16, and supplies power. Moreover, the electric power interruption | blocking part 18 which interrupts | blocks the flow of an electric current when an overcurrent flows is connected to the primary side of charge side magnetic contactor MC1.

また、充電側コントローラ１４には、充放電プラグＰと充電側電磁接触器ＭＣ１の間、すなわち充電側電磁接触器ＭＣ１の出力側となる２次側の電圧を検知する充放電検知部１９が接続されている。充電側コントローラ１４は、充放電検知部１９の検知結果を入力する。また、充電側コントローラ１４には、充放電プラグＰとの間に、電圧を検知する充放電検知部２０が接続されている。本実施形態の充電側コントローラ１４は、充放電検知部２０の検知結果をもとにＣＰＬＴ（コントロールパイロット）機能により、車両１２側との接続などを確認する。一方、放電側コントローラ１５には、電力系統１１と放電側電磁接触器ＭＣ２の間、すなわち放電側電磁接触器ＭＣ２の出力側となる２次側の電圧を検知する充放電検知部２１が接続されている。放電側コントローラ１５は、充放電検知部２１の検知結果を入力する。本実施形態の車両用充放電装置１０では、充電側電磁接触器ＭＣ１の１次側が電力遮断部１８を介して電力系統１１に接続されるとともに、充電側電磁接触器ＭＣ１の２次側が充放電プラグＰを介して車両１２に接続され、これらを接続する送電線によって充電用経路Ｋ１が構成されている。また、本実施形態の車両用充放電装置１０では、放電側電磁接触器ＭＣ２の１次側が充放電プラグＰを介して車両１２に接続されるとともに、放電側電磁接触器ＭＣ２の２次側が電力系統１１に接続され、これらを接続する送電線によって放電用経路Ｋ２が構成されている。   The charge controller 14 is connected to the charge controller 14 for detecting the secondary voltage between the charge / discharge plug P and the charge electromagnetic contactor MC1, that is, the output side of the charge contact magnetic contactor MC1. Has been. The charge-side controller 14 inputs the detection result of the charge / discharge detection unit 19. In addition, a charge / discharge detection unit 20 that detects a voltage is connected between the charge controller 14 and the charge / discharge plug P. The charge side controller 14 of this embodiment confirms the connection with the vehicle 12 side by the CPLT (control pilot) function based on the detection result of the charge / discharge detection unit 20. On the other hand, the discharge controller 15 is connected with a charge / discharge detector 21 for detecting a secondary voltage between the power system 11 and the discharge electromagnetic contactor MC2, that is, the output side of the discharge electromagnetic contactor MC2. ing. The discharge-side controller 15 inputs the detection result of the charge / discharge detection unit 21. In the vehicle charging / discharging device 10 of the present embodiment, the primary side of the charging-side electromagnetic contactor MC1 is connected to the power system 11 via the power cut-off unit 18, and the secondary side of the charging-side electromagnetic contactor MC1 is charged / discharged. The charging path K1 is configured by a power transmission line connected to the vehicle 12 via the plug P and connecting them. Moreover, in the vehicle charging / discharging device 10 of the present embodiment, the primary side of the discharge-side electromagnetic contactor MC2 is connected to the vehicle 12 via the charge / discharge plug P, and the secondary side of the discharge-side electromagnetic contactor MC2 is power. A discharge path K2 is configured by a power transmission line connected to the system 11 and connecting them.

以下、充電側電磁接触器ＭＣ１と放電側電磁接触器ＭＣ２の構成をさらに詳しく説明する。
充電側電磁接触器ＭＣ１は、複数（実施形態では４つ）の接点Ｓ１，Ｓ２，Ｓ３，Ｓ４を備えているとともに、放電側電磁接触器ＭＣ２は、複数（実施形態では４つ）の接点Ｓ５，Ｓ６，Ｓ７，Ｓ８を備えている。充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２、及び放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６は、ａ接点（常開接点）とされている。充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２は、充電用経路Ｋ１を通電状態と非通電状態とに切り換える。詳しく言えば、充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２は、開状態において充電用経路Ｋ１を非通電状態とする一方で、閉状態において充電用経路Ｋ１を通電状態とする。一方、放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６は、放電用経路Ｋ２を通電状態と非通電状態とに切り換える。詳しく言えば、放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６は、開状態において放電用経路Ｋ２を非通電状態とする一方で、閉状態において放電用経路Ｋ２を通電状態とする。本実施形態では、充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２によって第１の接点が構成されるとともに、放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６によって第３の接点が構成される。 Hereinafter, the configuration of the charging-side electromagnetic contactor MC1 and the discharging-side electromagnetic contactor MC2 will be described in more detail.
The charge-side electromagnetic contactor MC1 includes a plurality (four in the embodiment) of contacts S1, S2, S3, and S4, and the discharge-side magnetic contactor MC2 includes a plurality (four in the embodiment) of contacts S5. , S6, S7, S8. The contacts S1 and S2 of the charging-side electromagnetic contactor MC1 and the contacts S5 and S6 of the discharging-side electromagnetic contactor MC2 are a-contacts (normally open contacts). The contacts S1, S2 of the charging-side electromagnetic contactor MC1 switch the charging path K1 between an energized state and a non-energized state. Specifically, the contacts S1 and S2 of the charging-side electromagnetic contactor MC1 make the charging path K1 non-energized in the open state, while making the charging path K1 energized in the closed state. On the other hand, the contacts S5 and S6 of the discharge-side electromagnetic contactor MC2 switch the discharge path K2 between an energized state and a non-energized state. Specifically, the contacts S5 and S6 of the discharge-side electromagnetic contactor MC2 make the discharge path K2 non-energized in the open state, while making the discharge path K2 energized in the closed state. In the present embodiment, the first contact is configured by the contacts S1 and S2 of the charging-side electromagnetic contactor MC1, and the third contact is configured by the contacts S5 and S6 of the discharge-side electromagnetic contactor MC2.

充電側電磁接触器ＭＣ１の接点Ｓ３，Ｓ４、及び放電側電磁接触器ＭＣ２の接点Ｓ７，Ｓ８は、ｂ接点（常閉接点）とされている。そして、充電側電磁接触器ＭＣ１の接点Ｓ３と放電側電磁接触器ＭＣ２の接点Ｓ８は、電気的に接続されている。詳しく言えば、充電側電磁接触器ＭＣ１の接点Ｓ３の一方の端子は、放電抵抗２２を介して充電側電磁接触器ＭＣ１の２次側に接続されているとともに、接点Ｓ３の他方の端子は、放電側電磁接触器ＭＣ２の接点Ｓ８の一方の端子に接続されている。また、放電側電磁接触器ＭＣ２の接点Ｓ８の他方の端子は、充電側電磁接触器ＭＣ１の２次側に接続されている。すなわち、両接点Ｓ３，Ｓ８は、閉状態において充電側電磁接触器ＭＣ１の２次側の電流が流れる放電用回路としての閉回路を構成する。本実施形態では、接点Ｓ３が第５の接点となり、接点Ｓ８が第６の接点となる。   The contacts S3 and S4 of the charging side magnetic contactor MC1 and the contacts S7 and S8 of the discharge side magnetic contactor MC2 are b contacts (normally closed contacts). And contact S3 of charge side magnetic contactor MC1 and contact S8 of discharge side magnetic contactor MC2 are electrically connected. Specifically, one terminal of the contact S3 of the charging side electromagnetic contactor MC1 is connected to the secondary side of the charging side electromagnetic contactor MC1 via the discharge resistor 22, and the other terminal of the contact S3 is It is connected to one terminal of the contact S8 of the discharge-side electromagnetic contactor MC2. The other terminal of the contact S8 of the discharge side magnetic contactor MC2 is connected to the secondary side of the charge side electromagnetic contactor MC1. That is, both the contacts S3 and S8 constitute a closed circuit as a discharge circuit through which a secondary current of the charging-side electromagnetic contactor MC1 flows in the closed state. In the present embodiment, the contact S3 is the fifth contact, and the contact S8 is the sixth contact.

なお、両接点Ｓ３，Ｓ８は、充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２及び放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６とは、逆の動作状態を取り得る。つまり、接点Ｓ１，Ｓ２，Ｓ５，Ｓ６が開状態の場合は両接点Ｓ３，Ｓ８が閉状態となり、接点Ｓ１，Ｓ２，Ｓ５，Ｓ６が閉状態の場合は両接点Ｓ３，Ｓ８が開状態となる。したがって、両接点Ｓ３，Ｓ８は、接点Ｓ１，Ｓ２，Ｓ５，Ｓ６の何れもが開状態の場合、つまり充電用経路Ｋ１及び放電用経路Ｋ２の何れもが非通電状態の場合に、充電側電磁接触器ＭＣ１の２次側の電流が流れる閉回路を構成する。因みに、両接点Ｓ３，Ｓ８は、接点Ｓ１，Ｓ２が閉状態（充電用経路Ｋ１が通電状態）の場合、接点Ｓ３が開状態となることにより、閉回路を構成しない。また、両接点Ｓ３，Ｓ８は、接点Ｓ５，Ｓ６が閉状態（放電用経路Ｋ２が通電状態）の場合、接点Ｓ８が開状態となることにより、閉回路を構成しない。   Note that the two contacts S3 and S8 can be in opposite operating states to the contacts S1 and S2 of the charging-side electromagnetic contactor MC1 and the contacts S5 and S6 of the discharging-side electromagnetic contactor MC2. That is, when the contacts S1, S2, S5, and S6 are open, both the contacts S3 and S8 are closed, and when the contacts S1, S2, S5, and S6 are closed, both the contacts S3, S8 are open. . Therefore, both contacts S3, S8 are charged-side electromagnetic when all of the contacts S1, S2, S5, S6 are open, that is, when both the charging path K1 and the discharging path K2 are in a non-energized state. A closed circuit in which a current on the secondary side of the contactor MC1 flows is configured. Incidentally, when the contacts S1 and S2 are closed (the charging path K1 is energized), the contacts S3 and S8 do not constitute a closed circuit by the contact S3 being opened. Further, when the contacts S5 and S6 are closed (the discharge path K2 is energized), the contacts S3 and S8 do not constitute a closed circuit by the contact S8 being opened.

また、充電側電磁接触器ＭＣ１の接点Ｓ４は、一方の端子が放電側コントローラ１５に電気的に接続されているとともに、他方の端子が放電側電磁接触器ＭＣ２に電気的に接続されている。また、放電側電磁接触器ＭＣ２の接点Ｓ７は、一方の端子が充電側コントローラ１４に電気的に接続されているとともに、他方の端子が充電側電磁接触器ＭＣ１に電気的に接続されている。本実施形態では、接点Ｓ４が第２の接点となり、接点Ｓ７が第４の接点となる。   The contact S4 of the charging side electromagnetic contactor MC1 has one terminal electrically connected to the discharge side controller 15 and the other terminal electrically connected to the discharge side electromagnetic contactor MC2. Further, the contact S7 of the discharge-side electromagnetic contactor MC2 has one terminal electrically connected to the charge-side controller 14 and the other terminal electrically connected to the charge-side electromagnetic contactor MC1. In the present embodiment, the contact S4 becomes the second contact, and the contact S7 becomes the fourth contact.

本実施形態の充電側電磁接触器ＭＣ１は、充電側コントローラ１４が出力する電気信号により、各接点Ｓ１〜Ｓ４を開閉させる。詳しく言えば、充電側電磁接触器ＭＣ１では、接点Ｓ１，Ｓ２が開状態で、かつ接点Ｓ３，Ｓ４が閉状態の場合に、充電側コントローラ１４が充電用経路Ｋ１を通電状態に切り換えるための電気信号を出力すると、その信号の入力により各接点Ｓ１〜Ｓ４が逆の状態に動作する。すなわち、前記電気信号により、接点Ｓ１，Ｓ２は開状態から閉状態に動作する一方で、接点Ｓ３，Ｓ４は閉状態から開状態に動作する。このように動作した場合、充電用経路Ｋ１は、非通電状態から通電状態に切り換わる。本実施形態では、充電用経路Ｋ１を通電状態に切り換えるための電気信号が、第１の駆動信号となる。   The charging-side electromagnetic contactor MC1 of the present embodiment opens and closes the contacts S1 to S4 by an electrical signal output from the charging-side controller 14. More specifically, in the charging-side electromagnetic contactor MC1, when the contacts S1 and S2 are in the open state and the contacts S3 and S4 are in the closed state, the charging-side controller 14 switches the charging path K1 to the energized state. When a signal is output, each contact S1 to S4 operates in the reverse state by the input of the signal. That is, the electrical signals cause the contacts S1 and S2 to operate from the open state to the closed state, while the contacts S3 and S4 operate from the closed state to the open state. When operated in this way, the charging path K1 switches from the non-energized state to the energized state. In the present embodiment, the electrical signal for switching the charging path K1 to the energized state is the first drive signal.

一方、充電側電磁接触器ＭＣ１では、接点Ｓ１，Ｓ２が閉状態で、かつ接点Ｓ３，Ｓ４が開状態の場合に、充電側コントローラ１４が充電用経路Ｋ１を非通電状態に切り換えるための電気信号を出力すると、その信号の入力により各接点Ｓ１〜Ｓ４が逆の状態に動作する。すなわち、前記電気信号により、接点Ｓ１，Ｓ２は閉状態から開状態に動作する一方で、接点Ｓ３，Ｓ４は開状態から閉状態に動作する。このように動作した場合、充電用経路Ｋ１は、通電状態から非通電状態に切り換わる。   On the other hand, in the charging-side electromagnetic contactor MC1, when the contacts S1 and S2 are closed and the contacts S3 and S4 are open, the electric signal for the charging-side controller 14 to switch the charging path K1 to the non-energized state. When the signal is output, the contacts S1 to S4 operate in the opposite state by the input of the signal. That is, according to the electrical signal, the contacts S1 and S2 operate from the closed state to the open state, while the contacts S3 and S4 operate from the open state to the closed state. When operated in this way, the charging path K1 is switched from the energized state to the non-energized state.

また、本実施形態の放電側電磁接触器ＭＣ２は、放電側コントローラ１５が出力する電気信号により、各接点Ｓ５〜Ｓ８を開閉させる。詳しく言えば、放電側電磁接触器ＭＣ２では、接点Ｓ５，Ｓ６が開状態で、かつ接点Ｓ７，Ｓ８が閉状態の場合に、放電側コントローラ１５が放電用経路Ｋ２を通電状態に切り換えるための電気信号を出力すると、その信号の入力により各接点Ｓ５〜Ｓ８が逆の状態に動作する。すなわち、前記電気信号により、接点Ｓ５，Ｓ６は開状態から閉状態に動作する一方で、接点Ｓ７，Ｓ８は閉状態から開状態に動作する。このように動作した場合、放電用経路Ｋ２は、非通電状態から通電状態に切り換わる。本実施形態では、放電用経路Ｋ２を通電状態に切り換えるための電気信号が、第２の駆動信号となる。   Further, the discharge-side electromagnetic contactor MC2 according to the present embodiment opens and closes the contacts S5 to S8 by an electrical signal output from the discharge-side controller 15. More specifically, in the discharge-side electromagnetic contactor MC2, when the contacts S5 and S6 are in the open state and the contacts S7 and S8 are in the closed state, the electricity for the discharge-side controller 15 to switch the discharge path K2 to the energized state. When a signal is output, the contacts S5 to S8 operate in the opposite state by the input of the signal. That is, according to the electrical signal, the contacts S5 and S6 operate from the open state to the closed state, while the contacts S7 and S8 operate from the closed state to the open state. When operated in this way, the discharge path K2 switches from the non-energized state to the energized state. In the present embodiment, the electrical signal for switching the discharge path K2 to the energized state is the second drive signal.

一方、放電側電磁接触器ＭＣ２では、接点Ｓ５，Ｓ６が閉状態で、かつ接点Ｓ７，Ｓ８が開状態の場合に、放電側コントローラ１５が放電用経路Ｋ２を非通電状態に切り換えるための電気信号を出力すると、その信号の入力により各接点Ｓ５〜Ｓ８が逆の状態に動作する。すなわち、前記電気信号により、接点Ｓ５，Ｓ６は閉状態から開状態に動作する一方で、接点Ｓ７，Ｓ８は開状態から閉状態に動作する。このように動作した場合、放電用経路Ｋ２は、通電状態から非通電状態に切り換わる。   On the other hand, in the discharge side magnetic contactor MC2, when the contacts S5 and S6 are in the closed state and the contacts S7 and S8 are in the open state, the electrical signal for the discharge side controller 15 to switch the discharge path K2 to the non-energized state. When the signal is output, the contacts S5 to S8 operate in the opposite state by the input of the signal. That is, according to the electrical signal, the contacts S5 and S6 operate from the closed state to the open state, while the contacts S7 and S8 operate from the open state to the closed state. When operated in this way, the discharge path K2 switches from the energized state to the non-energized state.

そして、本実施形態では、充電側コントローラ１４からの電気信号を、充電側電磁接触器ＭＣ１に対して直接入力せずに、放電側電磁接触器ＭＣ２の接点Ｓ７を介して入力させている。一方、本実施形態では、放電側コントローラ１５からの電気信号を、放電側電磁接触器ＭＣ２に対して直接入力せずに、充電側電磁接触器ＭＣ１の接点Ｓ４を介して入力させている。このような構成によれば、電気信号は、当該電気信号の伝送経路上に配設した非制御対象側の接点を介して制御対象側に入力されることになる。つまり、充電側コントローラ１４からの電気信号は、放電側電磁接触器ＭＣ２の接点Ｓ７が閉状態である場合に、充電側電磁接触器ＭＣ１に入力される。換言すれば、充電側コントローラ１４からの電気信号は、放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６が開状態、すなわち放電用経路Ｋ２が非通電状態となる放電が行われていない場合に、充電側電磁接触器ＭＣ１に入力される。   In the present embodiment, the electrical signal from the charging controller 14 is not input directly to the charging electromagnetic contactor MC1, but is input via the contact S7 of the discharging electromagnetic contactor MC2. On the other hand, in the present embodiment, the electric signal from the discharge-side controller 15 is input via the contact S4 of the charge-side electromagnetic contactor MC1 without being directly input to the discharge-side electromagnetic contactor MC2. According to such a configuration, the electrical signal is input to the controlled object side via the non-controlled object side contact disposed on the transmission path of the electrical signal. That is, the electrical signal from the charging-side controller 14 is input to the charging-side electromagnetic contactor MC1 when the contact S7 of the discharging-side electromagnetic contactor MC2 is closed. In other words, the electrical signal from the charge-side controller 14 is charged when the contacts S5 and S6 of the discharge-side electromagnetic contactor MC2 are in the open state, that is, when the discharge path K2 is not in a non-energized state. Input to the side electromagnetic contactor MC1.

また、放電側コントローラ１５からの電気信号は、充電側電磁接触器ＭＣ１の接点Ｓ４が閉状態である場合に、放電側電磁接触器ＭＣ２に入力される。換言すれば、放電側コントローラ１５からの電気信号は、充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２が開状態、すなわち充電用経路Ｋ１が非通電状態となる充電が行われていない場合に、放電側電磁接触器ＭＣ２に入力される。   The electrical signal from the discharge-side controller 15 is input to the discharge-side electromagnetic contactor MC2 when the contact S4 of the charge-side electromagnetic contactor MC1 is in a closed state. In other words, the electrical signal from the discharge-side controller 15 is discharged when the contacts S1 and S2 of the charging-side electromagnetic contactor MC1 are in an open state, that is, when charging is not performed so that the charging path K1 is not energized. Input to the side electromagnetic contactor MC2.

以下、本実施形態の車両用充放電装置１０の作用を、図２及び図３にしたがって説明する。
充電及び放電が行われていない場合は、図１に示すように、充電側電磁接触器ＭＣ１の接点Ｓ１，Ｓ２、及び放電側電磁接触器ＭＣ２の接点Ｓ５，Ｓ６のそれぞれが開状態とされて充電用経路Ｋ１、及び放電用経路Ｋ２のそれぞれが非通電状態となる。また、充電側電磁接触器ＭＣ１の接点Ｓ３，Ｓ４、及び放電側電磁接触器ＭＣ２の接点Ｓ７，Ｓ８のそれぞれは、閉状態となる。 Hereinafter, the effect | action of the charging / discharging apparatus 10 for vehicles of this embodiment is demonstrated according to FIG.2 and FIG.3.
When charging and discharging are not performed, as shown in FIG. 1, the contacts S1 and S2 of the charging-side electromagnetic contactor MC1 and the contacts S5 and S6 of the discharging-side electromagnetic contactor MC2 are opened. Each of the charging path K1 and the discharging path K2 is in a non-energized state. Further, the contacts S3 and S4 of the charging-side electromagnetic contactor MC1 and the contacts S7 and S8 of the discharging-side electromagnetic contactor MC2 are closed.

そして、車両１２に接続された充放電プラグＰを介して車両１２との接続確認が行われるとともに、コントローラ１６から充電側コントローラ１４に充電開始の指示が送信されると、充電側コントローラ１４は、充電用経路Ｋ１を通電状態に切り換えるための電気信号を出力する。この電気信号は、放電側電磁接触器ＭＣ２の接点Ｓ７が閉状態とされていることから、その接点Ｓ７を介して充電側電磁接触器ＭＣ１に入力される。そして、充電側電磁接触器ＭＣ１では、図２に示すように、電気信号により、接点Ｓ３，Ｓ４が開状態とされる一方で、接点Ｓ１，Ｓ２が閉状態とされる。これにより、電力系統１１と車両１２の間の充電用経路Ｋ１は通電状態とされ、充放電プラグＰを介して電力が車両１２の蓄電池１３に供給されて充電が行われる。   And while the connection confirmation with the vehicle 12 is performed via the charging / discharging plug P connected to the vehicle 12, and the charge start controller 14 is transmitted from the controller 16 to the charge side controller 14, the charge side controller 14 An electrical signal for switching the charging path K1 to the energized state is output. Since the contact S7 of the discharge-side electromagnetic contactor MC2 is closed, this electrical signal is input to the charge-side electromagnetic contactor MC1 via the contact S7. In the charging-side electromagnetic contactor MC1, as shown in FIG. 2, the contacts S3 and S4 are opened while the contacts S1 and S2 are closed by an electrical signal. As a result, the charging path K1 between the electric power system 11 and the vehicle 12 is energized, and electric power is supplied to the storage battery 13 of the vehicle 12 via the charge / discharge plug P to perform charging.

なお、前述のように充電が行われている場合の放電側電磁接触器ＭＣ２は、図２に示すように、接点Ｓ５，Ｓ６が開状態とされる一方で、接点Ｓ７，Ｓ８が閉状態とされている。そして、充電中、外乱ノイズなどの何らかの要因により、放電側コントローラ１５から放電用経路Ｋ２を通電状態に切り換えるための電気信号が出力されたとする。しかし、その電気信号は、図２に示すように、充電側電磁接触器ＭＣ１の接点Ｓ４が開状態となっていることから、放電側電磁接触器ＭＣ２に入力されない。つまり、充電中、意図せずに放電へ切り換わることがない。   In addition, as shown in FIG. 2, the discharge side magnetic contactor MC2 when being charged as described above has the contacts S5 and S6 in the open state and the contacts S7 and S8 in the closed state, as shown in FIG. Has been. It is assumed that an electrical signal for switching the discharge path K2 to the energized state is output from the discharge-side controller 15 due to some factor such as disturbance noise during charging. However, as shown in FIG. 2, the electrical signal is not input to the discharge-side electromagnetic contactor MC2 because the contact S4 of the charge-side electromagnetic contactor MC1 is open. In other words, during charging, there is no unintentional switching to discharging.

その後、充電の終了に伴ってコントローラ１６から充電側コントローラ１４に充電終了の指示が送信されると、充電側コントローラ１４は、充電用経路Ｋ１を非通電状態に切り換えるための電気信号を出力する。この電気信号は、放電側電磁接触器ＭＣ２の接点Ｓ７が閉状態とされていることから、その接点Ｓ７を介して充電側電磁接触器ＭＣ１に入力される。そして、充電側電磁接触器ＭＣ１では、図１に示すように、電気信号により、接点Ｓ３，Ｓ４が閉状態とされる一方で、接点Ｓ１，Ｓ２が開状態とされる。この状態では、充電側電磁接触器ＭＣ１の接点Ｓ３、及び放電側電磁接触器ＭＣ２の接点Ｓ８の何れもが閉状態となり、充電側電磁接触器ＭＣ１の２次側の電流が流れる閉回路を構成している。このため、充放電プラグＰと車両１２が非接続状態とされた場合には、充電側電磁接触器ＭＣ１の２次側の残留電圧が、放電抵抗２２を介して放電される。なお、充電側電磁接触器ＭＣ１の接点Ｓ３は、充電用経路Ｋ１が通電状態となっている場合、開状態とされていることから、充電側電磁接触器ＭＣ１の２次側の電流が流れる閉回路は構成されない。したがって、放電抵抗２２は、充電中の負荷にはならない。   Thereafter, when an instruction to end charging is transmitted from the controller 16 to the charging-side controller 14 with the end of charging, the charging-side controller 14 outputs an electrical signal for switching the charging path K1 to a non-energized state. Since the contact S7 of the discharge-side electromagnetic contactor MC2 is closed, this electrical signal is input to the charge-side electromagnetic contactor MC1 via the contact S7. In the charging-side electromagnetic contactor MC1, as shown in FIG. 1, the contacts S3 and S4 are closed by an electrical signal, while the contacts S1 and S2 are opened. In this state, both the contact S3 of the charging-side electromagnetic contactor MC1 and the contact S8 of the discharging-side electromagnetic contactor MC2 are closed, and a closed circuit in which a secondary current of the charging-side electromagnetic contactor MC1 flows is configured. doing. For this reason, when the charge / discharge plug P and the vehicle 12 are disconnected, the residual voltage on the secondary side of the charging-side electromagnetic contactor MC1 is discharged via the discharge resistor 22. Note that the contact S3 of the charging-side electromagnetic contactor MC1 is open when the charging path K1 is energized, so that the secondary current of the charging-side electromagnetic contactor MC1 is closed. The circuit is not configured. Therefore, the discharge resistor 22 does not become a load during charging.

次に、放電を行う場合について説明する。
車両１２に接続された充放電プラグＰを介して車両１２との接続確認が行われるとともに、コントローラ１６から放電側コントローラ１５に放電開始の指示が送信されると、放電側コントローラ１５は、放電用経路Ｋ２を通電状態に切り換えるための電気信号を出力する。この電気信号は、充電側電磁接触器ＭＣ１の接点Ｓ４が閉状態とされていることから、その接点Ｓ４を介して放電側電磁接触器ＭＣ２に入力される。そして、放電側電磁接触器ＭＣ２では、図３に示すように、電気信号により、接点Ｓ７，Ｓ８が開状態とされる一方で、接点Ｓ５，Ｓ６が閉状態とされる。これにより、電力系統１１と車両１２の間の放電用経路Ｋ２は通電状態とされ、充放電プラグＰを介して車両１２の蓄電池１３から電力が放出されて放電が行われる。 Next, the case where discharge is performed will be described.
When the connection confirmation with the vehicle 12 is performed through the charge / discharge plug P connected to the vehicle 12 and a discharge start instruction is transmitted from the controller 16 to the discharge-side controller 15, the discharge-side controller 15 An electrical signal for switching the path K2 to the energized state is output. This electrical signal is input to the discharge-side electromagnetic contactor MC2 through the contact S4 because the contact S4 of the charge-side electromagnetic contactor MC1 is closed. In the discharge-side electromagnetic contactor MC2, as shown in FIG. 3, the contacts S7 and S8 are opened while the contacts S5 and S6 are closed by an electrical signal. As a result, the discharge path K2 between the electric power system 11 and the vehicle 12 is energized, and electric power is discharged from the storage battery 13 of the vehicle 12 through the charge / discharge plug P to perform discharge.

なお、前述のように放電が行われている場合の充電側電磁接触器ＭＣ１は、図３に示すように、接点Ｓ１，Ｓ２が開状態とされる一方で、接点Ｓ３，Ｓ４が閉状態とされている。そして、放電中、外乱ノイズなどの何らかの要因により、充電側コントローラ１４から充電用経路Ｋ１を通電状態に切り換えるための電気信号が出力されたとする。しかし、その電気信号は、図３に示すように、放電側電磁接触器ＭＣ２の接点Ｓ７が開状態となっていることから、充電側電磁接触器ＭＣ１に入力されない。つまり、放電中、意図せずに充電へ切り換わることがない。   As shown in FIG. 3, the charging-side electromagnetic contactor MC1 in the case where the discharge is performed as described above is such that the contacts S1 and S2 are in an open state, while the contacts S3 and S4 are in a closed state. Has been. Then, it is assumed that an electrical signal for switching the charging path K1 to the energized state is output from the charging controller 14 due to some factor such as disturbance noise during discharging. However, since the contact S7 of the discharge side electromagnetic contactor MC2 is in an open state as shown in FIG. 3, the electrical signal is not input to the charge side electromagnetic contactor MC1. In other words, the battery does not switch to charging unintentionally during discharging.

その後、放電の終了に伴ってコントローラ１６から放電側コントローラ１５に放電終了の指示が送信されると、放電側コントローラ１５は、放電用経路Ｋ２を非通電状態に切り換えるための電気信号を出力する。この電気信号は、充電側電磁接触器ＭＣ１の接点Ｓ４が閉状態とされていることから、その接点Ｓ４を介して放電側電磁接触器ＭＣ２に入力される。そして、放電側電磁接触器ＭＣ２では、図１に示すように、電気信号により、接点Ｓ７，Ｓ８が閉状態とされる一方で、接点Ｓ３，Ｓ４が開状態とされる。なお、放電中、放電側電磁接触器ＭＣ２の接点Ｓ８は、開状態とされていることから、充電側電磁接触器ＭＣ１の２次側の電流が流れる閉回路は構成されない。したがって、放電抵抗２２は、放電中の負荷にもならない。   Thereafter, when an instruction to end the discharge is transmitted from the controller 16 to the discharge-side controller 15 along with the end of the discharge, the discharge-side controller 15 outputs an electrical signal for switching the discharge path K2 to the non-energized state. This electrical signal is input to the discharge-side electromagnetic contactor MC2 through the contact S4 because the contact S4 of the charge-side electromagnetic contactor MC1 is closed. In the discharge-side electromagnetic contactor MC2, as shown in FIG. 1, the contacts S7 and S8 are closed while the contacts S3 and S4 are opened by an electrical signal. During discharging, the contact S8 of the discharge-side electromagnetic contactor MC2 is in an open state, so that a closed circuit through which a current on the secondary side of the charging-side electromagnetic contactor MC1 flows is not configured. Therefore, the discharge resistor 22 does not become a load during discharge.

したがって、本実施形態によれば、以下に示す効果を得ることができる。
（１）充電用経路Ｋ１を通電状態に切り換えるために充電側コントローラ１４が出力する電気信号を、放電側電磁接触器ＭＣ２を介して充電側電磁接触器ＭＣ１に入力する。前記電気信号は、非放電中であれば、放電側電磁接触器ＭＣ２の接点Ｓ７が閉状態とされていることにより、充電側電磁接触器ＭＣ１に入力される。換言すれば、前記電気信号は、放電中であれば、放電側電磁接触器ＭＣ２の接点Ｓ７が開状態とされていることにより、充電側電磁接触器ＭＣ１に入力されない。したがって、放電中に、意図しない要因で充電側コントローラ１４から前記電気信号が出力されたとしても、放電状態から充電状態に切り換わることがなく、充電状態と放電状態を確実に切り換えることができる。 Therefore, according to the present embodiment, the following effects can be obtained.
(1) An electric signal output from the charging-side controller 14 for switching the charging path K1 to the energized state is input to the charging-side electromagnetic contactor MC1 via the discharging-side electromagnetic contactor MC2. If the electrical signal is not discharged, the contact S7 of the discharge-side electromagnetic contactor MC2 is closed, and is input to the charge-side electromagnetic contactor MC1. In other words, the electric signal is not input to the charging-side electromagnetic contactor MC1 because the contact S7 of the discharging-side electromagnetic contactor MC2 is in an open state during discharging. Therefore, even if the electrical signal is output from the charging-side controller 14 due to an unintended factor during discharging, the charging state and the discharging state can be reliably switched without switching from the discharging state to the charging state.

（２）また、放電用経路Ｋ２を通電状態に切り換えるために放電側コントローラ１５が出力する電気信号を、充電側電磁接触器ＭＣ１を介して放電側電磁接触器ＭＣ２に入力する。前記電気信号は、非充電中であれば、充電側電磁接触器ＭＣ１の接点Ｓ４が閉状態とされていることにより、放電側電磁接触器ＭＣ２に入力される。換言すれば、前記電気信号は、充電中であれば、充電側電磁接触器ＭＣ１の接点Ｓ４が開状態とされていることにより、放電側電磁接触器ＭＣ２に入力されない。したがって、充電中に、意図しない要因で放電側コントローラ１５から前記電気信号が出力されたとしても、充電状態から放電状態に切り換わることがなく、充電状態と放電状態を確実に切り換えることができる。   (2) Further, an electric signal output by the discharge-side controller 15 for switching the discharge path K2 to the energized state is input to the discharge-side electromagnetic contactor MC2 via the charge-side electromagnetic contactor MC1. If the electric signal is not being charged, the contact S4 of the charging-side electromagnetic contactor MC1 is closed, and is input to the discharging-side electromagnetic contactor MC2. In other words, when the electric signal is being charged, the electric signal is not input to the discharge-side electromagnetic contactor MC2 because the contact S4 of the charge-side electromagnetic contactor MC1 is open. Therefore, even if the electrical signal is output from the discharge-side controller 15 due to an unintended factor during charging, the charging state and the discharging state can be reliably switched without switching from the charging state to the discharging state.

（３）そして、上記の排他制御を実現するために、本実施形態の車両用充放電装置１０は、多接点型の電磁接触器を用いるとともに、その接点の切り換えにより、非制御対象側の電磁接触器を介して制御対象側の電磁接触器に前記電気信号を入力する。このため、簡単な構成で上記の排他制御を実現できる。なお、本実施形態の排他制御は、充電と放電を同時に行わず、充電中は放電を、放電中は充電を、それぞれ行わせないようにする制御である。   (3) And in order to implement | achieve said exclusive control, while using the multi-contact type | mold electromagnetic contactor, the vehicle charging / discharging apparatus 10 of this embodiment changes the electromagnetic of the non-control object side by switching the contact. The electric signal is input to the electromagnetic contactor on the control target side via the contactor. Therefore, the above exclusive control can be realized with a simple configuration. Note that the exclusive control of the present embodiment is control in which charging and discharging are not performed at the same time, discharging is not performed during charging, and charging is not performed during discharging.

（４）充電側電磁接触器ＭＣ１の接点Ｓ３と放電側電磁接触器ＭＣ２の接点Ｓ８により、充電側電磁接触器ＭＣ１の２次側の残留電圧を放電する放電用回路を構成した。これにより、充電終了後に充放電プラグＰを非接続状態とした場合に、充電用経路Ｋ１の残留電圧を放電用回路によって放電させることができる。   (4) The discharge circuit for discharging the residual voltage on the secondary side of the charging side electromagnetic contactor MC1 is configured by the contact S3 of the charging side electromagnetic contactor MC1 and the contact S8 of the discharge side electromagnetic contactor MC2. Thereby, when the charging / discharging plug P is brought into a disconnected state after the charging is completed, the residual voltage in the charging path K1 can be discharged by the discharging circuit.

（５）また、充電中は接点Ｓ３が開状態になるとともに、放電中は接点Ｓ８が開状態となることにより、放電用回路は非通電状態とされる。このため、放電用回路に配設した放電抵抗２２は、充電中、及び放電中の何れにおいても負荷とならない。したがって、充電、及び放電を確実に行うことができる。   (5) Further, the contact S3 is in an open state during charging, and the contact S8 is in an open state during discharging, so that the discharging circuit is in a non-energized state. For this reason, the discharge resistor 22 disposed in the discharge circuit does not become a load during charging or discharging. Therefore, charging and discharging can be performed reliably.

（６）上記の排他制御の実現により、単一の充放電プラグＰを用いて、充電状態と放電状態を確実に切り換えることができる。すなわち、充電用と放電用のプラグを別々に設けることなく、充放電を行うことができる。   (6) By realizing the exclusive control described above, the charge state and the discharge state can be switched reliably using the single charge / discharge plug P. That is, charging / discharging can be performed without separately providing charging and discharging plugs.

なお、本実施形態は以下のように変更してもよい。
・ 充電中に放電しない、及び放電中に充電しない排他制御機能を搭載する車両用充放電装置１０を構成する場合、つまり充電側電磁接触器ＭＣ１の２次側の残留電圧を放電する機能を搭載しない場合は、放電抵抗２２を設けなくても良い。この場合、残留電圧を放電させるための閉回路を構成する充電側電磁接触器ＭＣ１の接点Ｓ３と放電側電磁接触器ＭＣ２の接点Ｓ８を設けなくても良い。つまり、充電側電磁接触器ＭＣ１は接点Ｓ１，Ｓ２，Ｓ４の３つの接点で構成するとともに、放電側電磁接触器ＭＣ２は接点Ｓ５，Ｓ６，Ｓ７の３つの接点で構成する。なお、上記のように排他制御のために充電側電磁接触器ＭＣ１及び放電側電磁接触器ＭＣ２をそれぞれ３つの接点で構成し、上記した残留電圧を放電する機能については別の手段を用いることで、排他制御と放電機能を備えた車両用充放電装置を構成しても良い。 In addition, you may change this embodiment as follows.
-When configuring the vehicle charging / discharging device 10 equipped with an exclusive control function that does not discharge during charging and does not charge during discharging, that is, a function that discharges the residual voltage on the secondary side of the charging-side electromagnetic contactor MC1. If not, the discharge resistor 22 may not be provided. In this case, the contact S3 of the charging-side electromagnetic contactor MC1 and the contact S8 of the discharging-side electromagnetic contactor MC2 that constitute a closed circuit for discharging the residual voltage need not be provided. That is, the charging-side electromagnetic contactor MC1 is composed of three contacts S1, S2, and S4, and the discharge-side electromagnetic contactor MC2 is composed of three contacts S5, S6, and S7. For exclusive control as described above, the charging side magnetic contactor MC1 and the discharging side magnetic contactor MC2 are each composed of three contacts, and for the function of discharging the residual voltage, another means is used. Alternatively, a vehicle charge / discharge device having exclusive control and a discharge function may be configured.

・ 充電側コントローラ１４と放電側コントローラ１５を単一のコントローラとし、そのコントローラで充電側電磁接触器ＭＣ１と放電側電磁接触器ＭＣ２を制御しても良い。
・ 各充放電検知部１９〜２１を、充電側コントローラ１４や放電側コントローラ１５の機能として構成しても良い。つまり、各充放電検知部１９〜２１が行う検知を、充電側コントローラ１４や放電側コントローラ１５が行っても良い。 The charging-side controller 14 and the discharging-side controller 15 may be a single controller, and the charging-side electromagnetic contactor MC1 and the discharging-side electromagnetic contactor MC2 may be controlled by the controller.
-You may comprise each charging / discharging detection part 19-21 as a function of the charge side controller 14 or the discharge side controller 15. FIG. That is, the detection performed by each of the charge / discharge detection units 19 to 21 may be performed by the charge controller 14 or the discharge controller 15.

・ 車両用充放電装置１０を例えば住宅に設置する場合には、電力放出先を電力系統１１に代えて、その住宅に設置した蓄電池とし、その蓄電池に車両１２の蓄電池１３から放出された電力を充電しても良い。   -When installing the charging / discharging apparatus 10 for vehicles in a house, for example, it replaces the electric power discharge destination with the electric power system 11, it is set as the storage battery installed in the house, and the electric power discharge | released from the storage battery 13 of the vehicle 12 is set to the storage battery. You can charge it.

１０…車両用充放電装置、１２…車両、１３…蓄電池、１４…充電側コントローラ、１５…放電側コントローラ、２２…放電抵抗、ＭＣ１…充電側電磁接触器、ＭＣ２…放電側電磁接触器、Ｋ１…充電用経路、Ｋ２…放電用経路、Ｐ…充放電プラグ、Ｓ１〜Ｓ８…接点。   DESCRIPTION OF SYMBOLS 10 ... Vehicle charging / discharging apparatus, 12 ... Vehicle, 13 ... Storage battery, 14 ... Charge side controller, 15 ... Discharge side controller, 22 ... Discharge resistance, MC1 ... Charge side electromagnetic contactor, MC2 ... Discharge side electromagnetic contactor, K1 ... charging path, K2 ... discharging path, P ... charge / discharge plug, S1 to S8 ... contact.

Claims (2)

充放電プラグを車両に接続し、その車両に搭載された蓄電池を充電する、又は前記蓄電池から放電する車両用充放電装置において、
充電時に、充電用経路を通電状態に切り換える充電時切換手段と、
放電時に、放電用経路を通電状態に切り換える放電時切換手段と、
充電時には前記充電用経路を通電状態へ切り換えるための第１の駆動信号を前記充電時切換手段に出力するとともに、放電時には前記放電用経路を通電状態へ切り換えるための第２の駆動信号を前記放電時切換手段に出力する切換制御手段と、を備え、
前記充電時切換手段には、前記充電用経路を通電状態と非通電状態に切り換える第１の接点と、前記第１の接点とは逆の状態を取り得る第２の接点と、を含み、
前記放電時切換手段には、前記放電用経路を通電状態と非通電状態に切り換える第３の接点と、前記第３の接点とは逆の状態を取り得る第４の接点と、を含み、
前記第１の駆動信号を、前記放電時切換手段の前記第４の接点を介して前記充電時切換手段に入力する一方で、前記第２の駆動信号を、前記充電時切換手段の前記第２の接点を介して前記放電時切換手段に入力することを特徴とする車両用充放電装置。 In a charging / discharging device for a vehicle that connects a charging / discharging plug to a vehicle, charges a storage battery mounted on the vehicle, or discharges from the storage battery,
A charging time switching means for switching the charging path to an energized state during charging;
A discharging switching means for switching the discharging path to an energized state during discharging;
When charging, a first drive signal for switching the charging path to the energized state is output to the charging time switching means, and at the time of discharging, a second drive signal for switching the discharge path to the energized state is discharged. Switching control means for outputting to the time switching means,
The charging time switching means includes a first contact for switching the charging path between an energized state and a non-energized state, and a second contact that can take a state opposite to the first contact,
The discharge time switching means includes a third contact for switching the discharge path between an energized state and a non-energized state, and a fourth contact capable of taking a state opposite to the third contact,
The first driving signal is input to the charging time switching means via the fourth contact point of the discharging time switching means, while the second driving signal is input to the second time of the charging time switching means. The vehicle charging / discharging device is characterized in that it is inputted to the discharging switching means through the contact of the vehicle. 前記充電時切換手段には、前記第２の接点と同一状態を取り得る第５の接点をさらに含み、
前記放電時切換手段には、前記第４の接点と同一状態を取り得る第６の接点をさらに含み、
前記第５の接点、前記第６の接点、及び放電抵抗により、前記充電用経路の残留電圧を放電する放電用回路を構成したことを特徴とする請求項１に記載の車両用充放電装置。 The charging time switching means further includes a fifth contact that can be in the same state as the second contact,
The discharge time switching means further includes a sixth contact that can be in the same state as the fourth contact,
The vehicle charging / discharging device according to claim 1, wherein a discharging circuit that discharges a residual voltage of the charging path is configured by the fifth contact, the sixth contact, and a discharge resistor.
JP2011243699A 2011-11-07 2011-11-07 Vehicle charging / discharging device Expired - Fee Related JP5751139B2 (en)

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