| 主权项 |
1. A vehicle LED lighting device system comprising:
an LED lighting device having an LED light source, a substrate on which the LED light source is mounted, a housing equipped with the substrate, and a lens covering the LED light source and which is attached to the housing; an operation switch configured to turn on and turn off the LED light source; a power supply connected to an input side of the operation switch; a plus cable that connects an output side of the operation switch and the LED lighting device, the plus cable being configured to supply an electric current from the power supply to the LED light source; and a minus cable configured to return an electric current that flows through the LED light source to a side of the power supply; the vehicle LED lighting device system further comprising: a switching element disposed in series with the LED light source and configured to interrupt an electric current that flows to the LED light source; and a detector configured to detect a voltage on an output side of the operation switch and cause the switching element to interrupt the electric current; wherein the switching element and the detector are disposed in an interior of the LED lighting device; and wherein the detector includes a leakage detecting resistance, a resistance, and a Zener diode, the resistance and the Zener diode being connected in parallel with the leakage detecting resistance, an electric current flowing through the resistance and the Zener diode being smaller than an electric current flowing through the leakage detecting resistance, and by operating the switching element at a voltage determined based on the Zener diode, in a case that a voltage across the leakage detecting resistance is less than or equal to a predetermined value, the detector causes the switching element to interrupt the electric current. |
