| 摘要 |
<p>A warning device with light and sound for vehicle includes a horn, a lamp, a switch of the horn and a vehicle power, wherein the anode of the vehicle power is electrically connected with the horn, the cathode of the vehicle power is electrically connected with the switch, and the other end of the switch is electrically connected with the horn; the cathode of the lamp is connected with the earth. There are two branches between the anode of the power and the horn, wherein one branch is electrically connected with the circuit, the other end of the circuit is electrically connected with the switch of the horn, the other branch is electrically connected with the relay switch, the other end of the relay switch is electrically connected with the diode, the other end of the diode is electrically connected with the anode of the lamp, the light relay is composed by the circuit and the relay switch.</p> |
