The invention discloses a line protecting and monitoring device for an automobile. The line protecting and monitoring device comprises an inlet wire cable, a fuse protector, a sensor and a hand brake switch which are connected in sequence. The hand brake switch is connected with a computer metering device, a relay protection device and a power source in sequence through a line. The power source comprises an input end, a rectification filter circuit, a voltage stabilization capacitor and a DC/CD conversion circuit which are connected in sequence. An overcurrent protection circuit is arranged between the input end and the rectification filter circuit and comprises a current sensor, a voltage stabilizing pipe, a divider resistor, a capacitor, a relay K1, a normally-closed contact and a rectification circuit. A primary coil of the current sensor and the normally-closed contact are connected between the input end of the power source and the rectification filter circuit in series, a secondary coil of the current sensor is connected with the rectification circuit, and the voltage stabilizing pipe and the divider resistor are connected to the output loop of the rectification circuit in series, and finally, the capacitor and the relay K1 are connected in parallel. The line protecting and monitoring device for the automobile is simple in structure, safe, reliable and low in power consumption.
Line protecting and monitoring device for automobile
2016-01-20
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
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