To provide an earth-fault detector of an electric vehicle with a less cost.SOLUTION: There is provided leakage detection means AC-coupled to an on-vehicle battery B, in an external charger J. The external charger J is for charging the on-vehicle battery B of a vehicle S, and has an earth-fault detector including a first contact 1, a second contact 2, a current source 3, a first resistor 4, a capacitor 5, a second resistor 6, an operational amplifier 7, an MPU 8. Leakages in the vehicle are detected by supplying an earth-fault detection signal to the on-vehicle battery B from the leakage detection means.SELECTED DRAWING: Figure 1

    【課題】従来よりもコストを抑えた電動車両の地絡検知装置を提供する。【解決手段】外部充電器Jに車載バッテリBに対して交流結合する漏電検出手段を設け、外部充電器Jは、車両Sに備えられた車載バッテリBを充電する装置であり、第1コンタクタ1、第2コンタクタ2、電流源3、第1抵抗器4、コンデンサ5、第2抵抗器6、演算増幅器7及びMPU8を機能構成要素とする地絡検知装置を備え、漏電検出手段から前記車載バッテリBに地絡検出信号を供給することにより車両の漏電を検出する。【選択図】図1


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    Titel :

    EARTH-FAULT DETECTOR


    Weitere Titelangaben:

    地絡検知装置


    Beteiligte:
    TSUCHIYA SHINGO (Autor:in) / KAMATA SEIJI (Autor:in)

    Erscheinungsdatum :

    2020-03-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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