With the improvement of people's living standard, there are more and more fans. Many people still don't know the DC fan and AC fan. It is necessary for us to give you a detailed introduction here.
With the improvement of people's living standards, a variety of fans are needed more and more, with civilian and industrial use. The occasions used are varied, and many people are unclear about whether the fan is a DC fan or AC fan. It is necessary for us to give a detailed introduction to everyone here:
First, the power supply is different:
Dc fans run on direct current, and ac fans run on alternating current.
Second, the working principle is different:
The principle of the DC fan is through DC voltage and electromagnetic induction, which converts electrical energy into mechanical energy to drive the fan blade to rotate rapidly. The coil and the IC constantly switch and the induction magnetic ring rotates from the fan blade.
The principle of the AC fan is driven by the AC power supply. The voltage will alternate between the positive and negative poles, and no circuit control is required to generate a magnetic field. The frequency of the power supply is fixed, and the speed of magnetic pole change produced by the silicon steel sheet is determined by the frequency of the power supply. The higher the frequency, the faster the switching speed of the magnetic field.
Third, bearing is different:
There are three types of bearings commonly used on the cooling fan: sleeve bearings with sliding friction, ball bearings with rolling friction, and two types of bearings. Over the years many a cooling fan manufacturer in bearing introduced many new technologies, such as magnetic bearing, magnetic core of water bearing, bearing, bearing, etc are also on the basic form of the bearing improved, operation principle, or no change. The general cooling fan mainly USES oil bearing and ball bearing. Double ball bearings are high-end products with high precision, high quality and high price. Oil bearing can satisfy various working conditions, and his use cycle is longer, the price is lower, but the quality is general.
Borders the cooling fan is points above are some of the methods, dc or ac if you still can't judge, then ask factory, Shenzhen Ruiapple cooling fan manufacturers, professional to provide DC cooling fan and the AC cooling fans.
