Speaker: speaker's voice coil

Voice coil is the core part of the vibration of the loudspeaker system, electricity, which has become a gold electromagnet, and permanent magnet along the axial direction before and after motion driven diaphragm sound. The stroke length, power and speed of the voice coil will affect the sound quality.

From the basic voice coil bobbin , coil wire coil and wire and lead wire on paper. In the voice coil work, there will be part of the electric energy conversion into heat, the temperature of the voice coil can reach a very hot degree.

Therefore, the material of the winding pipe is required, it must be heat resistant. Usually used is aluminum foil, aluminum foil itself can also be used for cooling. There are also used heat resistant plastic, fire paper.

The wire is not bare, it must cover the surface of insulating material. The coil is also a factor in the size of the speaker's power,and the sound coil, which is not working because the voice coil is burning through an insulating layer.

Insulation material can withstand the higher the temperature, voice coil can carry the function is more, so, the insulation layer is one of the key points to improve the power, some of the speakers of the use of the XXX high temperature resistance coating, refers to the insulation layer of high temperature resistance.