Why Does the Car Horn Suddenly Sound Continuously?
1 Answers
The reasons for a car horn suddenly sounding continuously are as follows: 1. The touch-sensitive chip inside may have become loose or detached, triggering the switch. Generally, when pressing the horn, avoid applying excessive force, as strong pressure can easily loosen or detach the touch-sensitive chip. 2. The horn's power line may be receiving continuous electricity. The reason for the horn's power line receiving continuous electricity could be that the horn relay contacts fail to disconnect properly. Below is some relevant knowledge about car horns: 1. A car electric horn consists of an iron core, magnetic coil, contacts, armature, diaphragm, etc. 2. When the horn switch is pressed, current flows through the contacts to the coil, generating magnetic force that pulls the armature down, forcing the diaphragm to move. The movement of the armature causes the contacts to open, interrupting the current and causing the coil's magnetic force to disappear. The diaphragm, along with the armature, returns to its original position due to its own elasticity and the spring plate, closing the contacts again and allowing current to flow through the coil, generating magnetic force once more and repeating the above actions. This cycle continues, causing the diaphragm to vibrate repeatedly and produce sound.
