The invention relates to a dual-power switching system, a switching method and an electric automobile, the dual-power switching system comprises a shell, and a first relay, a second relay, a cable joint, a low-voltage plug-in and a change-over switch which are respectively arranged in the shell, and the first relay, the second relay, the cable joint, the low-voltage plug-in and the change-over switch are electrically connected; the first relay is used for carrying out on-off control on input and output lines of the dual power supplies, the second relay is used for controlling on-off of the first relay and on-off of dual power supply signals, the cable joint is used for locking a high-voltage wire harness after the high-voltage wire harness passes through, and the low-voltage plug-in is used for completing circuit connection, signal transmission and power transmission under low voltage. And the change-over switch is used for controlling the on-off of the second relay and the on-off of the first relay. According to the invention, the requirement of dual-power switching of the pure electric vehicle is effectively met or improved to a certain extent, and the system is convenient, rapid, safe, reliable and high in practicability and has a good application prospect.

    本发明涉及一种双电源切换系统、切换方法及电动汽车,包括壳体,以及分别安装在壳体内的第一继电器、第二继电器、电缆接头、低压插件及切换开关,第一继电器、第二继电器、电缆接头、低压插件及切换开关电连接,第一继电器用于对双电源的输入输出线进行通断控制,第二继电器用于控制第一继电器的通断及控制双电源信号的通断,电缆接头用于当高压线束穿过后,将高压线束锁紧,低压插件用于在低电压下完成电路连接、信号传输及功率传递,切换开关用于控制第二继电器的通断及控制第一继电器的通断。本发明有效解决或在一定程度上改善了纯电动汽车双电源切换的需求,方便快捷、安全可靠、实用性强,具有良好的应用前景。


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    Title :

    Dual-power-supply switching system, switching method and electric vehicle


    Additional title:

    一种双电源切换系统、切换方法及电动汽车


    Contributors:
    LIU HAIBAO (author)

    Publication date :

    2024-01-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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




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