In some enterprises, when individuals buy cooling fans, they often don't know how to choose and where to start,DC cooling fan manufacturersXiaobian to teach you some common sense in the purchase of cooling fan!
General knowledge of the purchase of cooling fans: in the purchase of fans generally to understand the following necessary information: the size of the fan. Confirm whether the turbine is DC or communicating. The value of the supply voltage of the fan. For example: communication 220V,110V,380V DC 5V,12V,24V,36V,48V fan bearing mode, ball or oil.

The air volume and speed of the fan. For example, how many cubic meters per minute, or how many cubic feet per minute. Wind pressure value. With regard to bearings, oil-bearing traditional DC brushless fan motors are designed with the fan blade rotor (rotor for short) and its shaft core passing through the oil-bearing, SLEEVE bearing for short, which is pivotally fixed at the center of the motor stator so that a proper gap is maintained between the rotor and the stator.

Of course, there must be a gap between the shaft core and the bearing, so that the shaft core will not be deadlocked and unable to work; and the stator structure part of the motor (referred to as the stator), after the power is input, will be between the rotor and the stator Induction magnetic lines, and the control of the drive circuit make the fan motor work. Therefore, the traditional electric fan motor structure only needs a fan blade rotor, a motor stator and a drive circuit, and works with magnetic field induction through the pivot connection between the shaft core and the bearing.

The advantages of oily bearings. Resistant to the impact of external forces, less damage caused during transportation; cheap (compared with ball bearings, the price difference is very large. Defects with oil bearing. Dust in the air will be sucked into the center of the motor due to the work of the electric fan motor, and mix with the lubricating oil stored around the bearing to form sludge, which will cause working noise and even jam. The inner diameter of the bearing is simple and worn, and the service life is short.

The above is to share with you today some of the common sense of choosing a cooling fan, for more information, please consult our official website!