To provide a quick charger capable of reducing number of signals and confirming a weld of switch contacts.SOLUTION: A quick charger comprises: AC switches SW1 to SW3 that turn on and off an AC input; a power conversion unit 21 that converts an alternating current from the AC switches to a direct current; a positive DC switch 22 connected to a positive electrode of the power conversion unit and turns on and off to output a direct current; a negative DC switch 23 connected to a negative electrode of the power conversion unit and turns on and off; an operation signal circuit 16 that collectively turns on and off the AC switches, the positive DC switch, and the negative DC switch with an operation signal of the power conversion unit; and a recognition signal circuit 17 that connects in parallel a first auxiliary contact SP0 of the AC switches, a second auxiliary contact SP1 of the positive DC switch, and the third auxiliary contact SP2 of the negative DC switch, and recognizes ON of any of auxiliary contacts to collectively recognize ON of the AC switches, the positive DC switch, and the negative DC switch and to output a weld confirmation signal that shows weld confirmation of main contacts.SELECTED DRAWING: Figure 1

    【課題】信号数を低減できるとともに、開閉器の接点の溶着を確認できる急速充電器。【解決手段】交流入力をオンオフさせる交流開閉器SW1〜SW3と、交流開閉器からの交流を直流に変換する電力変換器部21と、電力変換器部の正極に接続され、オンオフすることで直流を出力する正極直流開閉器22と、電力変換器部の負極に接続され、オンオフする負極直流開閉器23と、電力変換器部の運転信号により交流開閉器と正極直流開閉器と負極直流開閉器とを一括してオンオフさせる運転信号回路16と、交流開閉器の第1補助接点SP0と正極直流開閉器の第2補助接点SP1と負極直流開閉器の第3補助接点SP2とを並列に接続し、いずれかの補助接点のオンを認識することにより交流開閉器と正極直流開閉器と負極直流開閉器とのオンを一括で認識し主接点の溶着確認を示す溶着確認信号を出力する認識信号回路17とを備える。【選択図】図1


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    Title :

    QUICK CHARGER


    Additional title:

    急速充電器


    Contributors:
    SUZUKI KENJI (author) / KOZUCHI JUN (author)

    Publication date :

    2021-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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