Combined with our use environment and other factors, the failure of the speaker itself is mainly due to the following reasons:
1. Contact ablation: If you press the horn for a long time, it will cause the horn contact to ablate and cause impedance. The current flowing through the electromagnetic coil will weaken, and the electromagnetic attraction will not be able to attract the armature to drive the diaphragm to vibrate normally, resulting in a hoarse or even no sound. . But when you continue to press the horn, if the instantaneous strong current passes the impedance, it can still work normally, so it will be good and bad.
2. Inadequate sealing and easy to get wet: Although the inside of the horn is closed, if there is water vapor in the fog or the air in the internal space when the car is not tightly sealed, the water vapor can easily cause the contact to be wet and not work properly.
3. Poor contact of the electromagnetic coil terminals: Some horn internal magnet coil enameled wire terminal joints are connected by aluminum metal rivets crimp connection, non-reliable welding connection, if the insulation lacquer on the terminal enameled wire is not clean or the rivet crimp is not reliable, it is easy to produce The fault of the virtual connection causes the horn to work poorly. This kind of fault is the reason of the quality of the horn, which cannot be repaired, only new parts can be replaced
