[Do you know how to distinguish the difference between DC fan and AC fan from bearing?
Release time:
2019-03-27
Many people think that DC fans and AC fans are the same. In fact, they are still different. The following editor analyzes the very important bearings of the fan. The varieties generally used on the radiator dispersion are: sleeve bearings using sliding friction, ball bearings using rolling friction, and a mixture of two bearing forms. In recent years, many cooling fan manufacturers have introduced many new technologies in bearing, such as magnetic bearing, water wave bearing, magnetic core bearing, Laifu bearing, etc., which are also improved on the basic form of bearing, and the operation principle is still unchanged. Ordinary wind
Many people think that DC fans and AC fans are the same. In fact, they are still different. The following editor analyzes the very important bearings of the fan.
The varieties generally used on the radiator dispersion are: sleeve bearings using sliding friction, ball bearings using rolling friction, and a mixture of two bearing forms. In recent years, many cooling fan manufacturers have introduced many new technologies in bearing, such as magnetic bearing, water wave bearing, magnetic core bearing, Laifu bearing, etc., which are also improved on the basic form of bearing, and the operation principle is still unchanged. Oil-bearing and ball bearings are mainly used on ordinary air-cooled radiators. Double ball bearings are high-end products with high precision, high quality and high price. They are three high products. Oil bearing can meet a variety of working conditions, and his use cycle is also very long, the price is relatively low, but the quality is relatively general.
In the working principle aboveDC FanAnd AC fan is not the same. The conductor passes through a current to generate a magnetic field. If the conductor is placed in another magnetic field, suction or repulsion will be generated, causing the object to move. Inside the fan blade, the rubber magnet surrounds the silicon steel sheet, and the axis part is wound with two sets of coils, and a Hall induction component is used as a synchronous detection device to control a set of circuits, which makes the two sets of coils wound around the axis work in turn. The steel sheet produces different magnetic poles, which generate attraction and repulsion with the rubber magnet. When the suction repulsion is greater than the static friction of the fan, the fan blades naturally rotate. Since the Hall sensing component provides the synchronization signal, the fan blade is thus continuously operated.
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