Poflex Technology Co., Ltd

Why led headlight not stay lit when vehicle is running?

The charging indicator light is on and off to reflect the unstable charging current of the generator. The possible faults are mainly the generator, voltage regulator and power line. When the engine speed is high, honking the horn is abnormal, indicating that the generator voltage is reduced when the generator speed is high. This may be that the generator brush spring is too weak. decline. 2. Troubleshooting method After checking and eliminating the possibility of power line failure, remove the generator brushes and find that one of the brushes is too short. The fault persists after replacing the brushes and brush springs, indicating that the cause of the fault has not been completely eliminated. Further inspection revealed that the slip ring has been ablated.

3. Failure analysis: The brush spring is insufficient due to excessive wear of the brush, which makes the brush and the slip ring vibrate due to poor contact, and the slip ring is ablated. Since the surface of the collector ring becomes a matte surface, the poor contact of the generator at high speed will be more serious than at low speed, so the generator will not generate electricity or generate lower voltage at high speed.