JP4821833B2 - Charging cable unit and charging system using the same - Google Patents

Charging cable unit and charging system using the same Download PDF

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JP4821833B2
JP4821833B2 JP2008277395A JP2008277395A JP4821833B2 JP 4821833 B2 JP4821833 B2 JP 4821833B2 JP 2008277395 A JP2008277395 A JP 2008277395A JP 2008277395 A JP2008277395 A JP 2008277395A JP 4821833 B2 JP4821833 B2 JP 4821833B2
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charging
charging information
opening
power
leakage
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JP2010110051A (en
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志朗 森
洋次 南
哲 上野
潔 後藤
達哉 向井
博俊 渡邉
孝二 垣内
博史 大屋
友好 林
豊 高田
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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Priority to JP2008277395A priority Critical patent/JP4821833B2/en
Priority to PCT/IB2009/007194 priority patent/WO2010049775A2/en
Priority to PCT/IB2009/007187 priority patent/WO2010049773A2/en
Priority to CN200980142900.7A priority patent/CN102196942B/en
Priority to US13/126,501 priority patent/US8736226B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/305—Communication interfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/36—Temperature of vehicle components or parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

本発明は、充電ケーブルユニット及びそれを用いた充電システムに関するものである。 The present invention relates to a charging cable unit and a charging system using the same .

電気自動車や非常用バッテリなどに搭載された二次電池に関わる充電情報を表示させる機能を備えた充電システムが従来から種々提供されており、例えば図１０は上記表示機能を電気自動車Ｄや非常用バッテリＣ側に設けた充電システムの一例である。しかしながら、このシステムでは、利用者が電気自動車Ｄや非常用バッテリＣの傍にいる場合には二次電池の充電状況を知ることができるが、利用者が充電場所から離れた場所（例えば宅内など）にいる場合には充電状況を知ることができなかった。   Various charging systems having a function of displaying charging information related to a secondary battery mounted on an electric vehicle or an emergency battery have been provided. For example, FIG. 10 illustrates the display function of the electric vehicle D or an emergency battery. It is an example of the charging system provided in the battery C side. However, in this system, when the user is near the electric vehicle D or the emergency battery C, the charging status of the secondary battery can be known, but the user is away from the charging place (for example, in the home) ) Could not know the charging status.

そこで、充電場所から離れた場所にいても二次電池の充電状況を知ることができるように構成された充電システムが提案されている（例えば特許文献１参照）。このシステムでは、電気自動車側に設けた送信機と、表示装置側に設けた受信機との間で無線通信が行われるようになっており、二次電池の充電情報が電気自動車の送信機から表示装置に向けて送信されると、表示装置では受信機を介して受け取った上記充電情報が表示されるようになっている。
特開平５−２１１７２４号公報（段落［０００９］−段落［００１３］、及び、第１図） Therefore, a charging system configured to be able to know the charging status of the secondary battery even at a location away from the charging location has been proposed (see, for example, Patent Document 1). In this system, wireless communication is performed between a transmitter provided on the electric vehicle side and a receiver provided on the display device side, and charging information of the secondary battery is transmitted from the transmitter of the electric vehicle. When transmitted to the display device, the display device displays the charging information received via the receiver.
JP-A-5-217724 (paragraph [0009] -paragraph [0013] and FIG. 1)

上述の特許文献１に示した充電システムでは、表示装置を宅内に設けることで利用者が宅内にいても充電状況を把握できるものではあるが、送信機を電気自動車に設けているため、例えば本システムを非常用バッテリに適用しようとした場合、送信機能を備えた非常用バッテリでなければならず、したがって汎用性の高いシステムではなかった。   In the charging system shown in Patent Document 1 described above, the display device is provided in the house so that the user can grasp the charging state even in the house, but the transmitter is provided in the electric vehicle. When an attempt was made to apply the system to an emergency battery, the system had to be an emergency battery with a transmission function, and thus was not a versatile system.

本発明は上記問題点に鑑みて為されたものであり、その目的とするところは、充電場所から離れた場所にいても二次電池の充電状況を把握することができ、且つ、汎用性の高い充電ケーブルユニット及びそれを用いた充電システムを提供することにある。 The present invention has been made in view of the above problems, and the object of the present invention is to be able to grasp the charging status of the secondary battery even in a place away from the charging place, and to be versatile. An object is to provide a high charging cable unit and a charging system using the same .

請求項１の発明は、商用電源が供給されるプラグ受けに着脱自在に接続される差込プラグ、該差込プラグに電源コードを介して電気的に接続され、商用電源の供給を受けて内蔵する二次電池を充電する受電機器側のコネクタに着脱自在に接続される機器接続用コネクタ、二次電池に関わる充電情報を取得する充電情報取得手段、および取得した充電情報を送信する送信手段を具備する充電ケーブルユニットと、送信手段を介して充電ケーブルユニットから送信される充電情報を受信する受信手段、および受信した充電情報を表示する表示手段を具備する表示装置とを備えることを特徴とする。   According to the first aspect of the present invention, an insertion plug is detachably connected to a plug receiver to which commercial power is supplied, and is electrically connected to the insertion plug via a power cord, and is supplied with commercial power and built in. A device connection connector that is detachably connected to a connector on the power receiving device side that charges the secondary battery, a charging information acquisition unit that acquires charging information related to the secondary battery, and a transmission unit that transmits the acquired charging information. The charging cable unit includes: a receiving unit that receives charging information transmitted from the charging cable unit via the transmitting unit; and a display device that includes a display unit that displays the received charging information. .

請求項２の発明は、送信手段は、取得した充電情報信号を商用電源に重畳し、受信手段は、商用電源に重畳された充電情報信号を該商用電源から分離することを特徴とする。   The invention of claim 2 is characterized in that the transmitting means superimposes the acquired charging information signal on the commercial power source, and the receiving means separates the charging information signal superimposed on the commercial power source from the commercial power source.

請求項３の発明は、表示装置は、少なくとも受電機器に供給される電力量と、該電力量から算出される電気料金とを表示手段に表示させることを特徴とする。   According to a third aspect of the present invention, the display device displays on the display means at least the amount of power supplied to the power receiving device and the electricity bill calculated from the amount of power.

請求項４の発明は、充電ケーブルユニットは、充電完了予定時間を含む充電情報信号を受電機器から取得して、該充電情報信号を送信手段により表示装置に送信し、表示装置は、受信した充電情報信号に含まれる充電完了予定時間を表示手段に表示することを特徴とする。   According to a fourth aspect of the present invention, the charging cable unit obtains a charging information signal including a scheduled charging completion time from the power receiving device, and transmits the charging information signal to the display device by the transmitting means. The charging completion scheduled time included in the information signal is displayed on the display means.

請求項５の発明は、充電ケーブルユニットは、電源コードに流れる漏洩電流を検出する漏電検知手段と、電源コードの途中に設けられて給電をオン／オフする開閉手段と、該開閉手段をオン／オフ制御する開閉制御手段とを備え、該開閉制御手段は、漏電検知手段により漏電が検出されると開閉手段をオフすることを特徴とする。   According to a fifth aspect of the present invention, the charging cable unit includes a leakage detecting means for detecting a leakage current flowing in the power cord, an opening / closing means provided in the middle of the power cord for turning on / off the power supply, and turning on / off the opening / closing means. An opening / closing control means for controlling the turning-off, and the opening / closing control means turns off the opening / closing means when a leakage is detected by the leakage detection means.

請求項６の発明は、充電ケーブルユニットは、差込プラグの温度を検出する温度検知手段を備え、開閉制御手段は、温度検知手段の検出結果が予め設定された閾値よりも高くなると開閉手段をオフすることを特徴とする。
請求項７の発明は、商用電源が供給されるプラグ受けに着脱自在に接続される差込プラグと、該差込プラグに電源コードを介して電気的に接続され、商用電源の供給を受けて内蔵する二次電池を充電する受電機器側のコネクタに着脱自在に接続される機器接続用コネクタと、二次電池に関わる充電情報を取得する充電情報取得手段と、取得した充電情報を送信する送信手段とを備えていることを特徴とする。
請求項８の発明は、送信手段は、取得した充電情報信号を商用電源に重畳して送信することを特徴とする。
請求項９の発明は、送信手段は、少なくとも受電機器に供給される電力量を商用電源に重畳して送信することを特徴とする。
請求項１０の発明は、送信手段は、充電完了予定時間を含む充電情報信号を受電機器から取得して、該充電情報信号を商用電源に重畳して送信することを特徴とする。
請求項１１の発明は、電源コードに流れる漏洩電流を検出する漏電検知手段と、電源コードの途中に設けられて給電をオン／オフする開閉手段と、該開閉手段をオン／オフ制御する開閉制御手段とを備え、該開閉制御手段は、漏電検知手段により漏電が検出されると開閉手段をオフすることを特徴とする。
請求項１２の発明は、差込プラグの温度を検出する温度検知手段を備え、開閉制御手段は、温度検知手段の検出結果が予め設定された閾値よりも高くなると開閉手段をオフすることを特徴とする。 According to a sixth aspect of the present invention, the charging cable unit includes temperature detecting means for detecting the temperature of the plug, and the opening / closing control means turns on the opening / closing means when the detection result of the temperature detecting means becomes higher than a preset threshold value. It is turned off.
The invention of claim 7 is an insertion plug that is detachably connected to a plug receptacle to which commercial power is supplied, and is electrically connected to the insertion plug via a power cord and receives supply of commercial power. A device connection connector that is detachably connected to a connector on the power receiving device side that charges the built-in secondary battery, a charging information acquisition means that acquires charging information related to the secondary battery, and a transmission that transmits the acquired charging information Means.
The invention of claim 8 is characterized in that the transmitting means transmits the acquired charging information signal superimposed on a commercial power source.
The invention according to claim 9 is characterized in that the transmitting means transmits at least the amount of power supplied to the power receiving device superimposed on the commercial power source.
The invention of claim 10 is characterized in that the transmitting means acquires a charging information signal including a scheduled charging completion time from the power receiving device, and transmits the charging information signal superimposed on a commercial power source.
According to the eleventh aspect of the present invention, there is provided a leakage detection means for detecting a leakage current flowing in the power cord, an opening / closing means provided in the middle of the power cord for turning on / off the power supply, and an opening / closing control for controlling the opening / closing of the opening / closing means. And the open / close control means turns off the open / close means when leakage is detected by the leakage detection means.
According to a twelfth aspect of the invention, there is provided temperature detecting means for detecting the temperature of the plug, and the opening / closing control means turns off the opening / closing means when the detection result of the temperature detecting means becomes higher than a preset threshold value. And

請求項１の発明によれば、二次電池に関わる充電情報を表示装置により知ることができ、特に表示装置を宅内に設けた場合には充電場所に行かなくても充電状況を把握することができるから、使い勝手のよい充電システムを提供することができる。また、受電機器側には充電情報を送信するための送信機能を設けなくてもいいので、複数種類の受電機器に対して本システムを適用することができ、その結果、汎用性の高い充電システムを提供することができるという効果がある。   According to the invention of claim 1, charging information related to the secondary battery can be known from the display device, and in particular, when the display device is provided in the house, the charging status can be grasped without going to the charging place. Therefore, an easy-to-use charging system can be provided. Further, since it is not necessary to provide a transmission function for transmitting charging information on the power receiving device side, the present system can be applied to a plurality of types of power receiving devices, and as a result, a highly versatile charging system. There is an effect that can be provided.

請求項２の発明によれば、充電情報信号を商用電源に重畳させることで、充電情報信号を伝送するための信号線が不要になり、その結果コストアップを抑えた充電システムを実現することができるという効果がある。   According to the invention of claim 2, by superimposing the charging information signal on the commercial power supply, a signal line for transmitting the charging information signal becomes unnecessary, and as a result, it is possible to realize a charging system that suppresses cost increase. There is an effect that can be done.

請求項３の発明によれば、受電機器に供給される電力量を表示装置に表示させることで、充電完了時の電力量との関係から充電完了時間の目安にすることができるので、充電場所に何度も行かなくてもよく、使い勝手のよい充電ケーブルユニットを提供することができる。また、表示装置に電気料金を表示させた場合には、例えば１回の充電に要する電気料金などを把握することができ、便利であるという効果がある。   According to the invention of claim 3, by displaying the amount of power supplied to the power receiving device on the display device, it can be used as a measure of the charging completion time from the relationship with the amount of power at the time of charging completion. Therefore, it is possible to provide an easy-to-use charging cable unit. In addition, when the electricity charge is displayed on the display device, for example, the electricity charge required for one charge can be grasped, which is advantageous in that it is convenient.

請求項４の発明によれば、充電完了予定時間を表示することで充電完了までの時間を正確に把握することができるという効果がある。   According to the invention of claim 4, there is an effect that it is possible to accurately grasp the time until the completion of charging by displaying the scheduled charging completion time.

請求項５の発明によれば、漏電検知手段により漏電が検出された場合、開閉制御手段により開閉手段をオフするので、受電機器への給電を遮断することができて安全性の高い充電システムを提供することができるという効果がある。   According to the fifth aspect of the present invention, when leakage is detected by the leakage detection means, the opening / closing means is turned off by the opening / closing control means, so that the power supply to the power receiving device can be cut off and a highly safe charging system can be provided. There is an effect that it can be provided.

請求項６の発明によれば、温度検知手段により検出した差込プラグの温度が予め設定された閾値よりも高い場合には開閉手段をオフすることで受電機器への給電を停止させるので、トラッキング現象などで温度が上昇する場合の安全性を高めることができる。また、温度上昇時と漏電検出時の給電遮断手段を、開閉制御手段および開閉手段により兼用することで、コストアップを抑えた充電システムを提供することができるという効果がある。   According to the invention of claim 6, since the power supply to the power receiving device is stopped by turning off the opening / closing means when the temperature of the plug detected by the temperature detection means is higher than a preset threshold, the tracking is stopped. It is possible to improve safety when the temperature rises due to a phenomenon or the like. In addition, there is an effect that it is possible to provide a charging system in which cost increase is suppressed by combining the power supply cutoff means at the time of temperature rise and leakage detection with the opening / closing control means and the opening / closing means.

以下に本発明に係る充電システムの実施形態を図面に基づいて説明する。本発明に係る充電システムは、利用者が充電場所から離れた場所（例えば宅内など）にいる場合でも、二次電池の充電状況を知ることができるシステムである。   Hereinafter, an embodiment of a charging system according to the present invention will be described with reference to the drawings. The charging system according to the present invention is a system that allows the user to know the charging status of the secondary battery even when the user is at a location away from the charging location (for example, at home).

（実施形態１）
図１は実施形態１の充電システムの概略構成図であり、二次電池が内蔵された非常用バッテリＣや電気自動車Ｄ（受電機器）に充電のための商用電源を供給する充電ケーブルユニットＡと、例えば宅内に設置され、上記二次電池に関わる充電情報を表示する表示装置Ｂとで構成されている。ここにおいて、上記電気自動車Ｄには、二次電池（バッテリ）のみを動力源とする自動車を含むとともに、二次電池とガソリンとを動力源として併用する所謂ハイブリッド自動車を含むものとする。 (Embodiment 1)
FIG. 1 is a schematic configuration diagram of a charging system according to a first embodiment, and a charging cable unit A that supplies a commercial power source for charging an emergency battery C and an electric vehicle D (power receiving device) with a built-in secondary battery. For example, the display device B is installed in a house and displays charging information related to the secondary battery. Here, the electric vehicle D includes a vehicle that uses only a secondary battery (battery) as a power source, and also includes a so-called hybrid vehicle that uses a secondary battery and gasoline as power sources.

充電ケーブルユニットＡは、商用電源が供給されるコンセント（プラグ受け）２に着脱自在に接続される差込プラグ３と、当該差込プラグ３に電源コード６を介して電気的に接続され、商用電源の供給を受けて内蔵する二次電池を充電する非常用バッテリＣ（または電気自動車Ｄ）側のコネクタ（図示せず）に着脱自在に接続される機器接続用コネクタ４と、二次電池に関わる充電情報を送信するための送信装置５とを備えている。なお、コンセント２および表示装置Ｂには、宅内に設けられた分電盤１から電源線７を介して商用電源が供給される。   The charging cable unit A is electrically connected to an insertion plug 3 detachably connected to an outlet (plug receptacle) 2 to which commercial power is supplied, and to the insertion plug 3 via a power cord 6. A device connecting connector 4 that is detachably connected to a connector (not shown) on the side of an emergency battery C (or electric vehicle D) that charges a built-in secondary battery upon receiving power supply, and a secondary battery And a transmission device 5 for transmitting related charging information. The outlet 2 and the display device B are supplied with commercial power via the power line 7 from the distribution board 1 provided in the house.

送信装置５は、図２（ａ）に示すように、一方の電源線６ａに流れる電流を測定する電流測定回路（例えばカレントトランスなど）５４と、電流測定回路５４の測定結果および自己に供給される電源電圧から非常用バッテリＣ（または電気自動車Ｄ）に供給される電力量を積算する電力量積算回路５１と、電力量積算回路５１の積算結果を含む充電情報信号を電源電圧に重畳させるＰＬＣ回路５３と、ＰＬＣ回路５３を制御するＰＬＣ制御回路５２とを備えている。なお、本実施形態では、電力量積算回路５１が電源回路（図示せず）を有しており、上記電力量積算回路５１、ＰＬＣ制御回路５２およびＰＬＣ回路５３の動作電源は上記電源回路により生成される。ここに、本実施形態の充電情報信号には電力量積算回路５１で積算した電力量が含まれており、電力量積算回路５１により充電情報取得手段が構成されている。また、ＰＬＣ回路５３およびＰＬＣ制御回路５２により送信手段が構成されている。なお、充電情報は上記積算電力量に限定されるものではなく、例えば電流計測回路５４で計測される電流値であってもいいし、また受電機器側から取得したもの（例えば後述する二次電池の充電電圧値や充電完了予定時間など）であってもよい。   As shown in FIG. 2A, the transmission device 5 is supplied to a current measurement circuit (for example, a current transformer) 54 that measures a current flowing through one power supply line 6a, a measurement result of the current measurement circuit 54, and itself. A power amount integrating circuit 51 that integrates the amount of power supplied from the power supply voltage to the emergency battery C (or the electric vehicle D), and a PLC that superimposes a charging information signal including the integration result of the power amount integrating circuit 51 on the power supply voltage. A circuit 53 and a PLC control circuit 52 that controls the PLC circuit 53 are provided. In the present embodiment, the power amount integrating circuit 51 has a power supply circuit (not shown), and the operation power sources of the power amount integrating circuit 51, the PLC control circuit 52, and the PLC circuit 53 are generated by the power supply circuit. Is done. Here, the charge information signal of the present embodiment includes the amount of power integrated by the power amount integration circuit 51, and the power amount integration circuit 51 constitutes charge information acquisition means. The PLC circuit 53 and the PLC control circuit 52 constitute transmission means. Note that the charging information is not limited to the integrated power amount, and may be, for example, a current value measured by the current measuring circuit 54, or obtained from the power receiving device (for example, a secondary battery described later). For example, the charging voltage value or the estimated charging completion time).

ここにおいて、本実施形態では、非常用バッテリＣ（または電気自動車Ｄ）と送信装置５（例えばＰＬＣ制御回路５２）との間が信号線（図示せず）を介して接続されており、例えば二次電池の充電電圧値や充電完了予定時間を含む充電情報信号が非常用バッテリＣ（または電気自動車Ｄ）から送信装置５に伝送されるようになっている。そして、送信装置５では、取得した二次電池の充電電圧値や充電完了予定時間、および上記積算結果を含む充電情報信号を表示装置Ｂに対して送信する。   Here, in the present embodiment, the emergency battery C (or the electric vehicle D) and the transmission device 5 (for example, the PLC control circuit 52) are connected via a signal line (not shown). A charging information signal including a charging voltage value of the next battery and a scheduled charging completion time is transmitted from the emergency battery C (or the electric vehicle D) to the transmitting device 5. Then, the transmission device 5 transmits to the display device B a charging information signal including the acquired charging voltage value of the secondary battery, estimated charging completion time, and the integration result.

表示装置Ｂは、図２（ｂ）に示すように充電ケーブルユニットＡから送信される上記充電情報信号を電源電圧から分離するＰＬＣ信号受信回路８２と、受信した充電情報を表示する表示回路８３と、表示回路８３の表示内容を制御する表示制御回路８４と、各回路の全般的な制御を行う制御回路８１と、各回路に必要な動作電源を生成する電源回路８５と、電源系統への信号漏れを防止するためのブロッキングフィルタ８７とを備えている。ここに、本実施形態では、ＰＬＣ信号受信回路８２により受信手段が構成され、また表示制御回路８４および表示回路８３により表示手段が構成されている。   As shown in FIG. 2B, the display device B includes a PLC signal receiving circuit 82 that separates the charging information signal transmitted from the charging cable unit A from the power supply voltage, and a display circuit 83 that displays the received charging information. A display control circuit 84 for controlling the display contents of the display circuit 83, a control circuit 81 for performing overall control of each circuit, a power supply circuit 85 for generating an operating power supply necessary for each circuit, and a signal to the power supply system And a blocking filter 87 for preventing leakage. In this embodiment, the PLC signal receiving circuit 82 constitutes a receiving means, and the display control circuit 84 and the display circuit 83 constitute a display means.

制御回路８１は、例えばＣＰＵからなり、ＰＬＣ信号受信回路８２を介して受信した充電情報信号に含まれる積算電力量や二次電池の充電電圧値に基づいて、電気料金や後述する充電経過時間を算出する。そして、制御回路８１は、算出した電気料金、充電経過時間や取得した充電完了予定時間を上記積算電力量とともに表示制御回路８４に出力する。   The control circuit 81 is composed of, for example, a CPU, and calculates an electric charge and a charge elapsed time (to be described later) based on the integrated power amount and the charge voltage value of the secondary battery included in the charge information signal received via the PLC signal receiving circuit 82. calculate. Then, the control circuit 81 outputs the calculated electricity bill, the elapsed charging time, and the acquired scheduled charging completion time to the display control circuit 84 together with the integrated electric energy.

表示回路８３は、例えば液晶パネル８３ａ（図３（ａ）参照）を有しており、表示制御回路８４からの指示により上記各充電情報（電力量、電気料金、充電経過時間または充電完了予定時間）を液晶パネル８３ａに表示させる。なお、表示部分は液晶パネルに限定されるものではなく、例えば７セグメントディスプレイであってもよい。   The display circuit 83 includes, for example, a liquid crystal panel 83a (see FIG. 3A), and the above-described charging information (power amount, electricity charge, elapsed charging time, or scheduled charging completion time) according to an instruction from the display control circuit 84. ) Is displayed on the liquid crystal panel 83a. The display portion is not limited to the liquid crystal panel, and may be a 7 segment display, for example.

ここにおいて、図４は二次電池への充電特性を示すグラフであり、二次電池の充電レベルは一般的に電池電圧を測定することで求められる。本実施形態では、制御回路８１において、上記充電情報信号に含まれる二次電池の充電電圧値の変化量を図４に示す充電特性と比較することで、例えば充電経過時間や残りの充電時間が算出される。   Here, FIG. 4 is a graph showing the charging characteristics of the secondary battery, and the charge level of the secondary battery is generally obtained by measuring the battery voltage. In the present embodiment, the control circuit 81 compares the amount of change in the charging voltage value of the secondary battery included in the charging information signal with the charging characteristics shown in FIG. 4, for example, the charging elapsed time and the remaining charging time. Calculated.

ここで、本充電システムの動作について説明する。まず、機器接続用コネクタ４を非常用バッテリＣ（または電気自動車Ｄ）側のコネクタに接続するとともに、差込プラグ３をコンセント２に差し込むと非常用バッテリＣ（または電気自動車Ｄ）に商用電源が供給され、非常用バッテリＣ（または電気自動車Ｄ）側で内蔵する二次電池の充電が行われる。このとき、送信装置５の電力量積算回路５１では、電流測定回路５４の測定結果および自己に供給される電源電圧から充電に費やした電力量を積算した後、非常用バッテリＣ（または電気自動車Ｄ）側から入力される二次電池の充電電圧値や充電完了予定時間、上記積算結果を含む充電情報信号をＰＬＣ制御回路５２に出力する。そして、ＰＬＣ制御回路５２では、上記充電情報信号をＰＬＣ回路５３を介して電源電圧に重畳させる。   Here, the operation of the present charging system will be described. First, the device connection connector 4 is connected to the connector on the emergency battery C (or electric vehicle D) side, and when the plug 3 is inserted into the outlet 2, commercial power is supplied to the emergency battery C (or electric vehicle D). The supplied secondary battery is charged on the emergency battery C (or electric vehicle D) side. At this time, the power amount integration circuit 51 of the transmission device 5 integrates the amount of power spent for charging from the measurement result of the current measurement circuit 54 and the power supply voltage supplied to itself, and then the emergency battery C (or the electric vehicle D). The charging information signal including the charging voltage value of the secondary battery, the estimated charging completion time, and the integration result input from the side is output to the PLC control circuit 52. Then, the PLC control circuit 52 superimposes the charging information signal on the power supply voltage via the PLC circuit 53.

一方、表示装置Ｂでは、電力線７ａ，７ａを介して伝送された上記充電情報信号がＰＬＣ信号受信回路８２により電源電圧から分離され、制御回路８１に入力される。制御回路８１では、入力された充電情報信号に含まれる電力量積算結果に基づいて電気料金を算出するとともに、二次電池の充電電圧値の変化量に基づいて充電経過時間や残りの充電時間を算出し、表示制御回路８４に出力する。なおこのとき、取得した上記充電完了予定時間も合わせて表示制御回路８４に出力する。そして、表示制御回路８４は、例えば図３（ａ）に示すように表示回路８３の液晶パネル８３ａに使用電力量や電気料金などを表示させる。なお、図３（ａ）では液晶パネル８３ａに使用電力量と電気料金を表示させているが、本図は一例であって、例えば充電経過時間や残りの充電時間や充電完了予定時間などを合わせて表示させるようにしてもよい。   On the other hand, in the display device B, the charging information signal transmitted through the power lines 7 a and 7 a is separated from the power supply voltage by the PLC signal receiving circuit 82 and input to the control circuit 81. The control circuit 81 calculates the electricity bill based on the electric energy integration result included in the input charging information signal, and calculates the elapsed charging time and the remaining charging time based on the amount of change in the charging voltage value of the secondary battery. Calculate and output to the display control circuit 84. At this time, the acquired charge completion estimated time is also output to the display control circuit 84. Then, the display control circuit 84 displays the amount of electric power used, the electricity bill, etc. on the liquid crystal panel 83a of the display circuit 83, for example, as shown in FIG. In FIG. 3 (a), the amount of power used and the electricity charge are displayed on the liquid crystal panel 83a. However, this diagram is an example, and for example, the elapsed charging time, the remaining charging time, and the expected charging completion time are combined. May be displayed.

而して、本実施形態によれば、二次電池に関わる充電情報を表示装置５により知ることができ、特に本実施形態のように表示装置５を宅内に設けた場合には充電場所に行かなくても充電状況を把握することができるから、使い勝手のよい充電システムを提供することができる。また、受電機器（非常用バッテリＣや電気自動車Ｄ）側には充電情報を送信するための送信機能を設けなくてもいいので、複数種類の受電機器に対して本システムを適用することができ、その結果、汎用性の高い充電システムを提供することができる。さらに、受電機器に供給される電力量を表示装置５に表示させることで、充電完了時の電力量との関係から充電完了時間の目安にすることができるので、充電場所に何度も行かなくてもよく、使い勝手をさらに向上させることができる。また、表示装置５に電気料金を表示させた場合には、例えば１回の充電に要する電気料金などを把握することができ、便利であるという利点がある。さらに、本実施形態のように充電情報信号を商用電源に重畳させることで、充電情報信号を伝送するための信号線が不要になり、その結果コストアップを抑えた充電システムを実現することができる。また、充電完了予定時間を表示装置Ｂに表示させた場合には、充電完了までの時間を正確に把握することができる。   Thus, according to the present embodiment, charging information related to the secondary battery can be obtained from the display device 5, and in particular, when the display device 5 is provided in the home as in the present embodiment, the charging location is visited. Since it is possible to grasp the charging state without it, a user-friendly charging system can be provided. In addition, since it is not necessary to provide a transmission function for transmitting charging information on the power receiving device (emergency battery C or electric vehicle D) side, this system can be applied to a plurality of types of power receiving devices. As a result, a highly versatile charging system can be provided. Furthermore, since the amount of power supplied to the power receiving device is displayed on the display device 5, it can be used as a guide for the charging completion time from the relationship with the amount of power at the time of charging completion, so it does not go to the charging place many times. However, it is possible to further improve the usability. In addition, when the electricity charge is displayed on the display device 5, for example, the electricity charge required for one charge can be grasped, and there is an advantage that it is convenient. Furthermore, by superimposing the charging information signal on the commercial power supply as in the present embodiment, a signal line for transmitting the charging information signal becomes unnecessary, and as a result, a charging system that suppresses cost increase can be realized. . Further, when the charging completion scheduled time is displayed on the display device B, it is possible to accurately grasp the time until the charging is completed.

なお、例えば充電エラーが発生した場合には、非常用バッテリＣ（または電気自動車Ｄ）側から充電エラーを報知する信号を信号線（図示せず）を介して送信装置５に送信し、さらに送信装置５から電力線搬送通信により表示装置Ｂに送信して、図３（ｂ）に示すようにＬＥＤ表示回路８６により充電エラーが発生したことを報知するようにしてもよい。   For example, when a charging error occurs, a signal notifying the charging error is transmitted from the emergency battery C (or electric vehicle D) side to the transmitting device 5 via a signal line (not shown), and further transmitted. It may be transmitted from the device 5 to the display device B by power line carrier communication, and the LED display circuit 86 may notify that a charging error has occurred, as shown in FIG.

（実施形態２）
本発明に係る充電システムの実施形態２を図５に基づいて説明する。本実施形態では、上述した充電ケーブルユニットＡに漏電遮断機能を設けた点で実施形態１と異なっている。なお、それ以外の構成は実施形態１と同様であるから、同一の構成要素には同一の符号を付して説明は省略する。 (Embodiment 2)
Embodiment 2 of the charging system according to the present invention will be described with reference to FIG. The present embodiment is different from the first embodiment in that the charging cable unit A described above is provided with a leakage interrupt function. Since the other configuration is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

本実施形態の充電システムは、充電ケーブルユニットＡと表示装置Ｂとで構成され、充電ケーブルユニットＡは、差込プラグ３と、機器接続用コネクタ４と、送信装置５とを備えている。また、送信装置５は、図５に示すように電力量積算回路５１、ＰＬＣ制御回路５２およびＰＬＣ回路５３を備えるとともに、漏電遮断部９を備えている。   The charging system according to the present embodiment includes a charging cable unit A and a display device B, and the charging cable unit A includes an insertion plug 3, a device connection connector 4, and a transmission device 5. Further, as shown in FIG. 5, the transmission device 5 includes a power amount integration circuit 51, a PLC control circuit 52, and a PLC circuit 53, and also includes a leakage breaker 9.

漏電遮断部９は、各電力線６ａとグランドとの間に流れる漏洩電流を検出する漏電検知回路（例えば零相変流器など）９２と、電力線６ａ，６ａの電路中にそれぞれ設けたリレー接点９４，９４を開閉させるリレー駆動回路９３と、漏電検知回路９２の検出結果に応じてリレー駆動回路９３によりリレー接点９４，９４をオン／オフさせる漏電制御回路９１と、漏電状態を擬似的に作り出すための漏電テストスイッチ９５と、漏電によるトリップ状態を解除するためのリセットスイッチ９６と、漏電が起こったことを報知するためのブザー９７とを備えている。ここに、本実施形態では、漏電検知回路９２により漏電検知手段が構成され、リレー接点９４により開閉手段が構成され、さらに漏電制御回路９１およびリレー駆動回路９３により開閉制御手段が構成されている。   The leakage breaker 9 includes a leakage detection circuit (for example, a zero-phase current transformer) 92 that detects a leakage current flowing between each power line 6a and the ground, and a relay contact 94 provided in each of the power lines 6a and 6a. , 94 for opening and closing, a leakage control circuit 91 for turning on / off the relay contacts 94, 94 by the relay drive circuit 93 according to the detection result of the leakage detection circuit 92, and a pseudo leakage state. Leakage test switch 95, a reset switch 96 for releasing a trip state due to leakage, and a buzzer 97 for notifying that leakage has occurred. Here, in the present embodiment, a leakage detection means is constituted by the leakage detection circuit 92, an opening / closing means is constituted by the relay contact 94, and an opening / closing control means is constituted by the leakage control circuit 91 and the relay drive circuit 93.

ここで、機器接続用コネクタ４を非常用バッテリＣ（または電気自動車Ｄ）側のコネクタに接続するとともに、差込プラグ３をコンセント２に差し込むと非常用バッテリＣ（または電気自動車Ｄ）に商用電源が供給され、非常用バッテリＣ（または電気自動車Ｄ）側で内蔵する二次電池の充電が行われる。ここにおいて、充電中に漏電検知回路９２により漏電（電源線６ａとグランドとの間に漏洩電流が流れた状態）が検出されると、漏電制御回路９１はリレー駆動回路９３を用いてリレー接点９４，９４をオフにし、非常用バッテリＣ（または電気自動車Ｄ）への給電を遮断すると同時に、ブザー９７を鳴動させて漏電が起こったことを報知する。なおこのとき、同時に漏電を報知する信号を電力線搬送通信により表示装置Ｂに送信し、図３（ｂ）に示すようにＬＥＤ表示回路８６により漏電が発生したことを報知するようにしてもよい。   Here, when the device connection connector 4 is connected to the connector on the emergency battery C (or electric vehicle D) side and the plug 3 is inserted into the outlet 2, a commercial power supply is supplied to the emergency battery C (or electric vehicle D). Is supplied, and the secondary battery built in the emergency battery C (or electric vehicle D) is charged. Here, when leakage is detected by the leakage detection circuit 92 during charging (a state in which leakage current flows between the power supply line 6a and the ground), the leakage control circuit 91 uses the relay drive circuit 93 to connect the relay contact 94. , 94 are turned off, power supply to the emergency battery C (or electric vehicle D) is cut off, and at the same time, the buzzer 97 is sounded to notify that a leakage has occurred. At this time, a signal for notifying the leakage may be simultaneously transmitted to the display device B by power line carrier communication, and the LED display circuit 86 may notify that the leakage has occurred, as shown in FIG.

また、漏電テストスイッチ９５を押した場合には、上述と同様の処理を経てリレー接点９４，９４がオフになり、擬似的に漏電状態を作り出すことができる。   Further, when the leakage test switch 95 is pressed, the relay contacts 94 and 94 are turned off through the same processing as described above, and a simulated leakage state can be created.

而して、本実施形態によれば、漏電検知回路９２により漏電が検出された場合、開閉制御手段（漏電制御回路９１およびリレー駆動回路９３）によりリレー接点９４，９４をオフするので、非常用バッテリＣ（または電気自動車Ｄ）への給電を遮断することができて安全性の高い充電システムを提供することができる。   Thus, according to the present embodiment, when leakage is detected by the leakage detection circuit 92, the relay contacts 94, 94 are turned off by the switching control means (leakage control circuit 91 and relay drive circuit 93). Power supply to the battery C (or the electric vehicle D) can be cut off, and a highly safe charging system can be provided.

なお、上述した電力量積算回路５１、送信手段（ＰＬＣ制御回路５２およびＰＬＣ回路）および漏電遮断部９を、本実施形態のように器体内にまとめて収納し、１つの送信装置５とすることでコンパクトな充電ケーブルユニットＡを実現することができる。   Note that the above-described electric energy integrating circuit 51, transmission means (PLC control circuit 52 and PLC circuit), and leakage breaker 9 are collectively housed in the container as in the present embodiment to form one transmission device 5. A compact charging cable unit A can be realized.

（実施形態３）
本発明に係る充電システムの実施形態３を図６および図７に基づいて説明する。本実施形態では、表示装置Ｂを、差込プラグ１０を介してコンセント２に着脱自在に接続可能とした点で実施形態１，２と異なっている。なお、それ以外の構成については、実施形態１，２と同様であり、同一の構成要素には同一の符号を付して説明は省略する。 (Embodiment 3)
A third embodiment of the charging system according to the present invention will be described with reference to FIGS. The present embodiment is different from the first and second embodiments in that the display device B can be detachably connected to the outlet 2 via the plug 10. In addition, about another structure, it is the same as that of Embodiment 1, 2, The same code | symbol is attached | subjected to the same component and description is abbreviate | omitted.

本実施形態の表示装置Ｂは、図７（ａ）（ｂ）に示すようにＰＬＣ信号受信回路８２と、表示回路８３と、表示制御回路８４と、制御回路８１と、電源回路８５と、ＬＥＤ表示回路８６とを備え、電源コード１１の先端に設けた差込プラグ１０を介してコンセント２に接続可能となっている。すなわち、本実施形態では、差込プラグ１０を介して表示装置Ｂをコンセント２に差込接続することで、充電ケーブルユニットＡと表示装置Ｂとで構成される充電システムが実現されるのである（図６参照）。なお、本システムの動作については実施形態１，２と同様であるから、説明は省略する。   As shown in FIGS. 7A and 7B, the display device B of the present embodiment includes a PLC signal receiving circuit 82, a display circuit 83, a display control circuit 84, a control circuit 81, a power supply circuit 85, and an LED. The display circuit 86 is provided, and can be connected to the outlet 2 via the plug 10 provided at the tip of the power cord 11. That is, in this embodiment, the charging system comprised of the charging cable unit A and the display device B is realized by plugging and connecting the display device B to the outlet 2 via the plug 10 ( (See FIG. 6). Since the operation of this system is the same as in the first and second embodiments, the description thereof is omitted.

而して、本実施形態によれば、実施形態１と同様に、二次電池に関わる充電情報を表示装置５により知ることができ、特に表示装置５を宅内に設けた場合には充電場所に行かなくても充電状況を把握することができるから、使い勝手のよい充電システムを提供することができる。また、受電機器（非常用バッテリＣや電気自動車Ｄ）側には充電情報を送信するための送信機能を設けなくてもいいので、複数種類の受電機器に対して本システムを適用することができ、その結果、汎用性の高い充電システムを提供することができる。さらに、本表示装置Ｂが接続されるコンセントは、充電ケーブルユニットＡが接続されるコンセント２と電気的に接続されたものであればよく、充電場所から離れた場所（宅内など）からでも二次電池の充電状況が把握可能な充電システムを実現することができる。   Thus, according to the present embodiment, as in the first embodiment, the charging information related to the secondary battery can be known by the display device 5, and particularly when the display device 5 is provided in the house, the charging location can be obtained. Since the charging status can be grasped without going, a user-friendly charging system can be provided. In addition, since it is not necessary to provide a transmission function for transmitting charging information on the power receiving device (emergency battery C or electric vehicle D) side, this system can be applied to a plurality of types of power receiving devices. As a result, a highly versatile charging system can be provided. Further, the outlet to which the display device B is connected is only required to be electrically connected to the outlet 2 to which the charging cable unit A is connected. A charging system capable of grasping the charging status of the battery can be realized.

（実施形態４）
本発明に係る充電システムの実施形態４を図８に基づいて説明する。実施形態１〜３では、二次電池に関わる充電情報を所謂電力線搬送通信により伝送しているが、本実施形態では上記充電情報を電波により伝送するように構成している。なお、以下の説明において、実施形態１〜３と同一の構成要素については同一の符号を付して説明は省略する。 (Embodiment 4)
Embodiment 4 of the charging system according to the present invention will be described with reference to FIG. In the first to third embodiments, charging information related to the secondary battery is transmitted by so-called power line carrier communication, but in the present embodiment, the charging information is transmitted by radio waves. In addition, in the following description, the same code | symbol is attached | subjected about the component same as Embodiment 1-3, and description is abbreviate | omitted.

本実施形態の送信装置５は、図８（ａ）に示すように上述した電力量積算回路５１と、電力量積算回路５１の積算結果を含む充電情報信号を変調するとともに、変調した充電情報信号をアンテナ５７を介して電波送信する電波送信回路５５と、当該電波送信回路５５に動作電源を供給する絶縁電源回路５６とを備えている。ここに、本実施形態では、電波送信回路５５およびアンテナ５７により送信手段が構成されている。   As shown in FIG. 8A, the transmission device 5 of the present embodiment modulates the above-described electric energy integrating circuit 51 and the charging information signal including the integrating result of the electric energy integrating circuit 51, and the modulated charging information signal. Is provided with a radio wave transmission circuit 55 that transmits radio waves via an antenna 57, and an insulated power supply circuit 56 that supplies operating power to the radio wave transmission circuit 55. Here, in the present embodiment, the radio wave transmission circuit 55 and the antenna 57 constitute transmission means.

一方、表示装置Ｂは、上述した制御回路８１、表示回路８３、表示制御回路８４、電源回路８５およびＬＥＤ表示回路８６を備えるとともに、電波信号を受信するためのアンテナ８９と、アンテナ８９を介して受信した電波信号を増幅したのち復調して上記充電情報信号を受信する電波受信回路８８と、電源回路８５に電源を供給する電池１００とを備えている。なお、電源回路８５には、商用電源ＡＣにより電源を供給するようにしてもよい。ここに、本実施形態では、電波受信回路８８およびアンテナ８９により受信手段が構成されている。   On the other hand, the display device B includes the control circuit 81, the display circuit 83, the display control circuit 84, the power supply circuit 85, and the LED display circuit 86, and an antenna 89 for receiving a radio signal, A radio wave receiving circuit 88 that amplifies the received radio wave signal and then demodulates and receives the charging information signal, and a battery 100 that supplies power to the power circuit 85 are provided. The power supply circuit 85 may be supplied with power by a commercial power supply AC. Here, in this embodiment, the radio wave receiving circuit 88 and the antenna 89 constitute a receiving means.

ここで、機器接続用コネクタ４を非常用バッテリＣ（または電気自動車Ｄ）側のコネクタに接続するとともに、差込プラグ３をコンセント２に差し込むと非常用バッテリＣ（または電気自動車Ｄ）に商用電源が供給され、非常用バッテリＣ（または電気自動車Ｄ）側で内蔵する二次電池の充電が行われる。このとき、送信装置５の電力量積算回路５１では、電流測定回路５４の測定結果および自己に供給される電源電圧から充電に費やした電力量を積算した後、非常用バッテリＣ（または電気自動車Ｄ）側から入力される二次電池の充電電圧値と上記積算結果を含む充電情報信号を電波送信回路５５に出力する。さらに、電波送信回路５５では、入力された上記充電情報信号を変調するとともに、変調した充電情報信号をアンテナ５７を介して電波送信する。   Here, when the device connection connector 4 is connected to the connector on the emergency battery C (or electric vehicle D) side and the plug 3 is inserted into the outlet 2, a commercial power supply is supplied to the emergency battery C (or electric vehicle D). Is supplied, and the secondary battery built in the emergency battery C (or electric vehicle D) is charged. At this time, the power amount integration circuit 51 of the transmission device 5 integrates the amount of power spent for charging from the measurement result of the current measurement circuit 54 and the power supply voltage supplied to itself, and then the emergency battery C (or the electric vehicle D). The charging information signal including the charging voltage value of the secondary battery input from the) side and the integration result is output to the radio wave transmission circuit 55. Further, the radio wave transmission circuit 55 modulates the input charging information signal and transmits the modulated charging information signal via the antenna 57.

一方、表示装置Ｂでは、電波受信回路８８において、アンテナ８９を介して受信した電波信号を増幅したのち上記充電情報信号に復調し、復調した充電情報信号は制御回路８１に入力される。制御回路８１では、入力された充電情報に基づいて電気料金および充電経過時間が算出され、算出した電気料金および充電経過時間や積算電力量（使用電力量）が表示制御回路８４に入力される。そして、表示制御回路８４は、表示回路８３の液晶パネル８３ａに使用電力量や電気料金や充電経過時間などを表示させる。   On the other hand, in the display device B, the radio wave reception circuit 88 amplifies the radio wave signal received via the antenna 89 and then demodulates the signal to the charging information signal, and the demodulated charging information signal is input to the control circuit 81. In the control circuit 81, the electricity charge and the elapsed charge time are calculated based on the input charging information, and the calculated electricity charge, the elapsed charge time and the integrated power amount (used power amount) are input to the display control circuit 84. Then, the display control circuit 84 causes the liquid crystal panel 83a of the display circuit 83 to display the amount of power used, the electricity charge, the elapsed charging time, and the like.

而して、本実施形態によれば、実施形態１と同様に、二次電池に関わる充電情報を表示装置５により知ることができ、特に表示装置５を宅内に設けた場合には充電場所に行かなくても充電状況を把握することができるから、使い勝手のよい充電システムを提供することができる。また、受電機器（非常用バッテリＣや電気自動車Ｄ）側には充電情報を送信するための送信機能を設けなくてもいいので、複数種類の受電機器に対して本システムを適用することができ、その結果、汎用性の高い充電システムを提供することができる。さらに、本システムでは電波を用いているので、電波の届く範囲であれば遠隔地においても二次電池の充電状況を把握することができる。   Thus, according to the present embodiment, as in the first embodiment, the charging information related to the secondary battery can be known by the display device 5, and particularly when the display device 5 is provided in the house, the charging location can be obtained. Since the charging status can be grasped without going, a user-friendly charging system can be provided. In addition, since it is not necessary to provide a transmission function for transmitting charging information on the power receiving device (emergency battery C or electric vehicle D) side, this system can be applied to a plurality of types of power receiving devices. As a result, a highly versatile charging system can be provided. Furthermore, since this system uses radio waves, the charging status of the secondary battery can be ascertained even in remote locations as long as the radio waves reach.

（実施形態５）
本発明に係る充電システムの実施形態５を図９に基づいて説明する。本実施形態では、差込プラグ３に設けた温度センサ１２の検出結果が予め設定された閾値よりも高くなった場合、非常用バッテリＣ（または電気自動車Ｄ）への給電を停止させるようにした点で実施形態１〜４と異なっている。なお、以下の説明において、実施形態１〜４と同一の構成要素には同一の符号を付して説明は省略する。また、図９（ａ）は本実施形態の主要部のみを図示しており、基本構成は図５と同様であるものとする。 (Embodiment 5)
Embodiment 5 of the charging system according to the present invention will be described with reference to FIG. In the present embodiment, when the detection result of the temperature sensor 12 provided in the plug 3 becomes higher than a preset threshold value, power supply to the emergency battery C (or electric vehicle D) is stopped. This is different from the first to fourth embodiments. In addition, in the following description, the same code | symbol is attached | subjected to the component same as Embodiment 1-4, and description is abbreviate | omitted. FIG. 9A shows only the main part of the present embodiment, and the basic configuration is the same as in FIG.

本実施形態の充電ケーブルユニットＡは、図９（ｂ）に示すように差込プラグ３に温度センサ１２が設けられており、この温度センサ１２の出力信号は上述した漏電制御回路９１に入力されるようになっている（図９（ａ）参照）。すなわち、本実施形態の漏電制御回路９１は、上述した漏電検知回路（図示せず）からの漏電検知信号または温度センサ１２からの出力信号の何れか一方が入力されると、リレー駆動回路９３を用いてリレー接点９４，９４をオフにし、非常用バッテリＣ（または電気自動車Ｄ）への給電を遮断するようになっている。ここに、本実施形態では、温度センサ１２により温度検知手段が構成され、リレー接点９４により開閉手段が構成され、さらに漏電制御回路９１およびリレー駆動回路９３により開閉制御手段が構成されている。すなわち、本実施形態では、実施形態２で説明した開閉制御手段および開閉手段を、温度上昇時の給電遮断手段として兼用している。   In the charging cable unit A of the present embodiment, as shown in FIG. 9B, the temperature sensor 12 is provided in the plug 3 and the output signal of the temperature sensor 12 is input to the leakage control circuit 91 described above. (See FIG. 9A). That is, the leakage control circuit 91 of the present embodiment causes the relay drive circuit 93 to be activated when either the leakage detection signal from the above-described leakage detection circuit (not shown) or the output signal from the temperature sensor 12 is input. The relay contacts 94, 94 are used to turn off the power supply to the emergency battery C (or the electric vehicle D). Here, in the present embodiment, the temperature sensor 12 constitutes a temperature detecting means, the relay contact 94 constitutes an opening / closing means, and the leakage control circuit 91 and the relay drive circuit 93 constitute an opening / closing control means. That is, in this embodiment, the opening / closing control means and the opening / closing means described in Embodiment 2 are also used as power supply interruption means when the temperature rises.

ここで、機器接続用コネクタ４を非常用バッテリＣ（または電気自動車Ｄ）側のコネクタに接続するとともに、差込プラグ３をコンセント２に差し込むと非常用バッテリＣ（または電気自動車Ｄ）に商用電源が供給され、非常用バッテリＣ（または電気自動車Ｄ）側で内蔵する二次電池の充電が行われるのであるが、例えばトラッキング現象により差込プラグ３の温度が上昇し、温度センサ１２で検出される温度が予め設定された閾値よりも高くなった場合には、漏電制御回路９１はリレー駆動回路９３を用いてリレー接点９４，９４をオフにし、非常用バッテリＣ（または電気自動車Ｄ）への給電を停止させる。すなわち、本実施形態によれば、トラッキング現象などで差込プラグ３の温度が上昇した場合の安全性を高めることができるのである。また、本実施形態のように、温度上昇に伴う異常停止と漏電に伴う異常停止を１つの制御部（漏電制御回路９１）で制御することによって、それぞれ別々に制御部を設けた場合に比べて部品点数を削減することができる。   Here, when the device connection connector 4 is connected to the connector on the emergency battery C (or electric vehicle D) side and the plug 3 is inserted into the outlet 2, a commercial power supply is supplied to the emergency battery C (or electric vehicle D). Is supplied, and the secondary battery built in the emergency battery C (or the electric vehicle D) is charged. For example, the temperature of the plug 3 rises due to a tracking phenomenon and is detected by the temperature sensor 12. When the temperature to be exceeded is higher than a preset threshold value, the leakage control circuit 91 turns off the relay contacts 94 and 94 using the relay drive circuit 93 to connect to the emergency battery C (or the electric vehicle D). Stop the power supply. That is, according to the present embodiment, it is possible to improve safety when the temperature of the plug 3 increases due to a tracking phenomenon or the like. Further, as in this embodiment, by controlling the abnormal stop accompanying the temperature rise and the abnormal stop accompanying the electric leakage with one control unit (leakage control circuit 91), compared to the case where the control units are provided separately, respectively. The number of parts can be reduced.

而して、本実施形態によれば、温度上昇時と漏電検出時の給電遮断手段を、漏電制御回路９１、リレー駆動回路９３およびリレー接点９４，９４により兼用することで、コストアップを抑えた充電システムを提供することができる。   Thus, according to the present embodiment, the power supply cutoff means at the time of temperature rise and leakage detection is shared by the leakage control circuit 91, the relay drive circuit 93, and the relay contacts 94, 94, thereby suppressing an increase in cost. A charging system can be provided.

なお、実施形態１〜５では、受電機器として非常用バッテリＣまたは電気自動車Ｄを例に挙げているが、受電機器は上記例に限定されるものではなく、内蔵する二次電池を充電するものであれば他のものであってもよい。   In the first to fifth embodiments, the emergency battery C or the electric vehicle D is cited as an example of the power receiving device. However, the power receiving device is not limited to the above example, and the built-in secondary battery is charged. Any other one may be used.

実施形態１の充電システムの概略構成図である。It is a schematic block diagram of the charging system of Embodiment 1. （ａ）は同上に用いられる送信装置の概略ブロック図、（ｂ）は同上に用いられる表示装置の概略ブロック図である。(A) is a schematic block diagram of the transmission device used in the above, and (b) is a schematic block diagram of the display device used in the above. （ａ）（ｂ）は同上に用いられる表示装置の表示例である。(A) and (b) are display examples of the display device used in the above. 二次電池への充電特性を示すグラフである。It is a graph which shows the charge characteristic to a secondary battery. 実施形態２の充電システムに用いられる送信装置の概略ブロック図である。It is a schematic block diagram of the transmitter used for the charging system of Embodiment 2. 実施形態３の充電システムの概略構成図である。It is a schematic block diagram of the charging system of Embodiment 3. 同上に用いられる表示装置を示し、（ａ）は外観図、（ｂ）は概略ブロック図である。The display apparatus used for the above is shown, (a) is an external view, and (b) is a schematic block diagram. （ａ）は実施形態４の充電システムに用いられる送信装置の概略ブロック図、（ｂ）は同上に用いられる表示装置の概略ブロック図である。(A) is a schematic block diagram of the transmission apparatus used for the charging system of Embodiment 4, (b) is a schematic block diagram of the display apparatus used for the same as the above. （ａ）は実施形態５の充電システムに用いられる充電ケーブルユニットの主要部の概略ブロック図、（ｂ）は同上の断面図である。(A) is a schematic block diagram of the principal part of the charging cable unit used for the charging system of Embodiment 5, (b) is sectional drawing same as the above. 従来例の充電システムの概略構成図である。It is a schematic block diagram of the charging system of a prior art example.

符号の説明Explanation of symbols

２ コンセント（プラグ受け）
３ 差込プラグ
４ 機器接続用コネクタ
６ 電源コード
５１ 電力量積算回路（充電情報取得手段）
５２ ＰＬＣ制御回路（送信手段）
５３ ＰＬＣ回路（送信手段）
８２ ＰＬＣ信号受信回路（受信手段）
８３ 表示回路（表示手段）
Ａ 充電ケーブルユニット
Ｂ 表示装置
Ｃ 非常用バッテリ（受電機器）
Ｄ 電気自動車（受電機器） 2 Outlet (plug receptacle)
3 Plug Plug 4 Device Connection Connector 6 Power Cord 51 Energy Accumulation Circuit (Charging Information Acquisition Means)
52 PLC control circuit (transmission means)
53 PLC circuit (transmission means)
82 PLC signal receiving circuit (receiving means)
83 Display circuit (display means)
A Charging cable unit B Display device C Emergency battery (power receiving device)
D Electric vehicle (power receiving equipment)

Claims (12)

商用電源が供給されるプラグ受けに着脱自在に接続される差込プラグ、該差込プラグに電源コードを介して電気的に接続され、商用電源の供給を受けて内蔵する二次電池を充電する受電機器側のコネクタに着脱自在に接続される機器接続用コネクタ、二次電池に関わる充電情報を取得する充電情報取得手段、および取得した充電情報を送信する送信手段を具備する充電ケーブルユニットと、送信手段を介して充電ケーブルユニットから送信される充電情報を受信する受信手段、および受信した充電情報を表示する表示手段を具備する表示装置とを備えることを特徴とする充電システム。   An insertion plug that is detachably connected to a plug receptacle to which commercial power is supplied, and is electrically connected to the insertion plug via a power cord to receive a commercial power supply and charge a built-in secondary battery. A charging cable unit comprising a device connecting connector detachably connected to a connector on the power receiving device side, charging information acquisition means for acquiring charging information related to the secondary battery, and transmission means for transmitting the acquired charging information; A charging system comprising: a receiving unit that receives charging information transmitted from a charging cable unit via a transmitting unit; and a display device that includes a display unit that displays the received charging information. 前記送信手段は、取得した充電情報信号を商用電源に重畳し、前記受信手段は、商用電源に重畳された前記充電情報信号を該商用電源から分離することを特徴とする請求項１記載の充電システム。   2. The charging according to claim 1, wherein the transmission unit superimposes the acquired charging information signal on a commercial power source, and the receiving unit separates the charging information signal superimposed on the commercial power source from the commercial power source. system. 前記表示装置は、少なくとも受電機器に供給される電力量と、該電力量から算出される電気料金とを前記表示手段に表示させることを特徴とする請求項１または２の何れか１項に記載の充電システム。   3. The display device according to claim 1, wherein the display device displays at least the amount of electric power supplied to the power receiving device and an electricity bill calculated from the electric energy on the display unit. 4. Charging system. 前記充電ケーブルユニットは、充電完了予定時間を含む充電情報信号を受電機器から取得して、該充電情報信号を前記送信手段により表示装置に送信し、前記表示装置は、受信した前記充電情報信号に含まれる充電完了予定時間を前記表示手段に表示することを特徴とする請求項１〜３の何れか１項に記載の充電システム。   The charging cable unit acquires a charging information signal including a scheduled charging completion time from a power receiving device, and transmits the charging information signal to the display device by the transmitting unit. The display device adds the charging information signal to the received charging information signal. The charging system according to any one of claims 1 to 3, wherein the scheduled charging completion time is displayed on the display means. 前記充電ケーブルユニットは、電源コードに流れる漏洩電流を検出する漏電検知手段と、電源コードの途中に設けられて給電をオン／オフする開閉手段と、該開閉手段をオン／オフ制御する開閉制御手段とを備え、該開閉制御手段は、漏電検知手段により漏電が検出されると前記開閉手段をオフすることを特徴とする請求項１〜４の何れか１項に記載の充電システム。   The charging cable unit includes a leakage detecting means for detecting a leakage current flowing in the power cord, an opening / closing means provided in the middle of the power cord for turning on / off the power supply, and an opening / closing control means for controlling the opening / closing of the opening / closing means. The charging system according to any one of claims 1 to 4, wherein the open / close control means turns off the open / close means when a leakage is detected by the leakage detection means. 前記充電ケーブルユニットは、差込プラグの温度を検出する温度検知手段を備え、前記開閉制御手段は、温度検知手段の検出結果が予め設定された閾値よりも高くなると前記開閉手段をオフすることを特徴とする請求項５記載の充電システム。   The charging cable unit includes temperature detection means for detecting the temperature of the plug, and the opening / closing control means turns off the opening / closing means when a detection result of the temperature detection means becomes higher than a preset threshold value. 6. The charging system according to claim 5, wherein 商用電源が供給されるプラグ受けに着脱自在に接続される差込プラグと、該差込プラグに電源コードを介して電気的に接続され、商用電源の供給を受けて内蔵する二次電池を充電する受電機器側のコネクタに着脱自在に接続される機器接続用コネクタと、二次電池に関わる充電情報を取得する充電情報取得手段と、取得した充電情報を送信する送信手段とを備えていることを特徴とする充電ケーブルユニット。A plug plug that is detachably connected to a plug receptacle to which commercial power is supplied, and a secondary battery that is electrically connected to the plug via a power cord and receives the commercial power supply to charge the built-in secondary battery A device connection connector that is detachably connected to the connector on the power receiving device side, a charging information acquisition unit that acquires charging information related to the secondary battery, and a transmission unit that transmits the acquired charging information. Charging cable unit characterized by 前記送信手段は、取得した充電情報信号を商用電源に重畳して送信することを特徴とする請求項７記載の充電ケーブルユニット。The charging cable unit according to claim 7, wherein the transmission unit transmits the acquired charging information signal superimposed on a commercial power source. 前記送信手段は、少なくとも受電機器に供給される電力量を商用電源に重畳して送信することを特徴とする請求項７または８の何れか１項に記載の充電ケーブルユニット。The charging cable unit according to any one of claims 7 and 8, wherein the transmission unit transmits at least an amount of power supplied to the power receiving device superimposed on a commercial power source. 前記送信手段は、充電完了予定時間を含む充電情報信号を受電機器から取得して、該充電情報信号を商用電源に重畳して送信することを特徴とする請求項７〜９の何れか１項に記載の充電ケーブルユニット。10. The transmission device according to claim 7, wherein the transmission unit acquires a charging information signal including a scheduled charging completion time from a power receiving device, and transmits the charging information signal superimposed on a commercial power source. The charging cable unit described in 1. 電源コードに流れる漏洩電流を検出する漏電検知手段と、電源コードの途中に設けられて給電をオン／オフする開閉手段と、該開閉手段をオン／オフ制御する開閉制御手段とを備え、該開閉制御手段は、漏電検知手段により漏電が検出されると前記開閉手段をオフすることを特徴とする請求項７〜１０の何れか１項に記載の充電ケーブルユニット。A leakage detecting means for detecting a leakage current flowing in the power cord; an opening / closing means for turning on / off power supply provided in the middle of the power cord; and an opening / closing control means for controlling on / off of the opening / closing means. The charging cable unit according to any one of claims 7 to 10, wherein the control means turns off the opening / closing means when a leakage is detected by the leakage detection means. 差込プラグの温度を検出する温度検知手段を備え、前記開閉制御手段は、温度検知手段の検出結果が予め設定された閾値よりも高くなると前記開閉手段をオフすることを特徴とする請求項１１記載の充電ケーブルユニット。12. A temperature detecting means for detecting the temperature of the plug is provided, and the opening / closing control means turns off the opening / closing means when a detection result of the temperature detecting means becomes higher than a preset threshold value. The charging cable unit described.
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PCT/IB2009/007187 WO2010049773A2 (en) 2008-10-28 2009-10-22 Charging cable unit
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