Car horn points have electric horn and two loudspeakers

Car horn points have electric horn and two loudspeakers, electric horn by electromagnetic coil electricity and power continuously, make the metal diaphragm produces vibration and acoustics, sound pleasing to the ear. Electric horn shape is a spiral and basin type, widely used in all kinds of cars. Light passenger cars are electric horn. Air TV Speaker using compressed air flow make the metal diaphragm produces vibration, appearance is more long horn (cylindrical), more sound and a higher tone, long transmission distance, multi-purpose on running a long distance of large and medium-sized cars within the city is disabled. Spiral car electric horn attached speaker cone, roll up into a spiral in a compressed volume, beautiful sound loud and clear. Basin shape car electric horn without speaker cone, shape flat small volume, light weight and easy installation, quality slightly but widely used. Basic working principle of spiral and basin shape is the same, is Computer Speaker by iron core (1), (2) the magnetic coil, contact (6), the armature (5), diaphragm (3), etc. When the driver presses the button (8), electricity flows through the contact through the coil, a coil magnetic suction under the armature (5) mandatory diaphragm moving armature move off contact, magnetic current interrupt disappear, elastic diaphragm in itself and under the action of leaf spring and recovery in situ with armature, contact closure circuit connected to electric current to pass through magnetic coil, contact the repeat the action. So follow bad diaphragm vibration unceasingly, thus the sound. The soundboard (4) and diaphragm rigid connection, can make the vibration smooth sound more pleasing to the ear. Car horn on high frequency with high, medium and low bass three. In order to make the car horn tone more plump, some electric horn of the car horn and got behind the tones of high and low, form a dual tone horn. But this current is bigger, will directly endanger the button contact. In order to avoid the horn button contact is arc spark burn out, some car in line to join a relay, with a small current to control large current, make the horn button only from damage by small current. Need to point out that the positive line (7) of the average car horn is supplied by the fuse box, anode electric horn button is the control of the car horn, so commonly known as the horn button line for the "system". General motors electric horn of tone and volume can be adjusted, by adjusting the gap between armature and core adjustable tones, adjust the contact pressure adjustable volume, once the volume, coil current changes. In order to keep the sound volume, there are some electric horn is fully sealed, are not allowed to adjust, change is broken as a whole.