Intelligent battery charging wire device for car

The utility model relates to an intelligent battery charging wire device for cars. The utility model is characterized in that the intelligent battery charging wire is provided with an electricity relaying conducting device which is crossed over a positive power supply and a negative power supply of two power supplies at a normal end and a fault end. When a trigger starting device receives that electricity clamp heads of the normal end and the failure end are correctly clamped, the trigger starting device can trigger and conduct a circuit between the normal end and the failure end, and thus the function for wiring a charging circuit is accomplished. Moreover, the trigger starting device is composed of two trigger elements, and the forward bias of a circuit between the positive and the negative clamp heads respectively connected with the normal power supply and the failure power supply in sequence is used for conducting and triggering. The utility model can effectively prevent that because of wiring errors, a device can device generate short circuits which can damage the intelligent protecting effects.