The invention provides an electrical safety protection circuit and protection system for an electric vehicle. The electrical safety protection circuit comprises a power supply module, a protection module and a load, one end of the protection module is connected with the negative electrode of a battery, and the other end is connected with the negative electrode of the load; an electric door lock isalso arranged between the positive electrode of the battery and the load and is connected with the load through a lock back wire; an anode of an anti-backflow diode D1 is connected with a lock back line through a voltage acquisition line, and the cathode of the anti-backflow diode D1 is connected with the protection module. According to the electrical safety protection circuit and protection system for the electric vehicle, parking is safe, when an electric door lock line is in a closed state, module current limiting is 100 mA, power is cut off rapidly after overcurrent, the response speed ishigh, the limiting value is small, sparks are not likely to be generated, and safety is high; when the electric door lock is opened, the module supplies power to the rear through the mos tube, the overcurrent capacity is high, the requirement for normal working current is met, the short-circuit protection function is achieved, and the response speed is higher than that of a traditional mode.

    本发明提供了一种用于电动车的电气安全防护电路及防护系统,包括电源模块、防护模块和负载;防护模块串联在主回路负极线上,一端接电池负极,另一端接负载负极;电池正极与负载之间还设有电门锁,电门锁通过锁后线与负载连接;还包括防倒灌二极管D1,D1的阳极通过电压采集线与锁后线连接,阴极与防护模块连接。本发明所述的一种用于电动车的电气安全防护电路及防护系统停放安全,在电门锁线关闭的状态,模块限流100mA,过流后迅速断电,响应速度快,限制值小,不易产生火花,安全性高;在电门锁开启时,模块通过mos管向后方供电,过流能力较强,满足正常工作电流,且具有短路保护功能,响应速度高于传统方式。


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    Titel :

    Electrical safety protection circuit and protection system for electric vehicle


    Weitere Titelangaben:

    一种用于电动车的电气安全防护电路及防护系统


    Beteiligte:
    ZHANG XIAOGANG (Autor:in) / HAN YIXI (Autor:in) / CHENG JIANTING (Autor:in) / WU JIANING (Autor:in)

    Erscheinungsdatum :

    2020-11-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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