What Causes Distortion in Car Horns?

1 Answers
DianaAnn
07/30/25 5:52am
This is generally caused by the amplifier's power being too high while the horn's power is too low. It could also be due to the horn's surround coming unglued, the voice coil rubbing against the magnet, or issues with the voice coil itself. Below is an introduction to car horns: 1. Working Principle: A car electric horn produces sound through the vibration of a metal diaphragm. It consists of an iron core, electromagnetic coil, contacts, armature, and diaphragm. When the driver presses the horn switch, current flows through the contacts to the coil, generating a magnetic force that pulls the armature, forcing the diaphragm to move. The armature's movement then opens the contacts, interrupting the current and causing the coil's magnetic force to disappear. The diaphragm, with the help of its own elasticity and spring plate, returns to its original position along with the armature, closing the contacts again and reconnecting the circuit. Current flows through the contacts to the coil once more, generating magnetic force and repeating the process. This continuous cycle causes the diaphragm to vibrate repeatedly, producing sound. 2. Different Types: Car horns can be categorized by their sound mechanism into air horns and electric horns; by their shape into cylindrical, spiral, and cone types; and by their frequency into high-pitch and low-pitch horns.
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