1. a look car horn
is the acoustic horn signal system of the vehicle. In the process of moving the car, the driver needs and requirements issued under the required acoustic signal to warn pedestrians and other vehicles due, to ensure traffic safety, but also for signal transmission line as a catalyst. Electromagnetic coil
works
When the steering wheel is pressed on the horn button or other location, a current will flow from the battery through the circuit of the horn relay, solenoid coil to attract the movable contact of the relay switch is closed, current will flow at the horn. The electromagnet current operation of the internal speaker, so that the diaphragm vibration sound.
Category
according to their pronunciation speaker horn sub-electric power of the gas horn; divided by a helical shape, and a cylindrical cup-shaped three; according to audibly into treble and bass speaker; according to the wiring can be divided into a two-wire line system and the horn; according to whether the contact type can be divided into contact