Cooling fans are commonly used in industrial and commercial applications for heat dissipation and ventilation, the length of its life is important to the stability and reliability of the equipment, the following are the main reasons affecting the life of the fan:

1.Bearing type: The bearing type of the cooling fan is an important factor affecting the life. Common bearing types include ball bearings and hydraulic bearings. Ball bearings generally have a longer life and lower friction, while hydraulic bearings are more advantageous in terms of noise and vibration.

2.Use environment: The use environment of the fan will also affect the life. For example, if the fan is constantly operating in a hot or humid environment, there is an increased risk of mechanical wear and electrical failure.

3.Maintenance and cleaning: Regular maintenance and cleaning of the fan is essential to extend its life. The accumulation of dust, dirt and debris will lead to unbalance and obstruction of the fan blades, affecting the heat dissipation effect and increasing the mechanical load.

4.Frequency of use: The longer you use it each day, the shorter the number of days you can use it.

1.Difference of test environment: the noise test in the specification is usually carried out in an ideal and relatively quiet laboratory environment, but in the actual use environment, there may be other noise Confounding. These noises will mask the noise of the fan, causing the actual sound to be heard to be louder than the specifications.

2.Different measurement methods: different manufacturers may adopt different testing methods and conditions, so the same fan may have different noise values in different specifications.

3.The problem of the cooling fan itself: the fan itself may be defective or damaged, resulting in increased noise. This can be due to quality problems that occur during manufacturing or damage caused during transportation.

4. Improper installation position and method: if the installation position is not suitable, such as at the resonance point, near walls or other obstacles, it will cause poor air flow and increase noise. Or if the installation method is incorrect, such as imbalanced installation, it can cause fan vibration and loud noise.

Air purifiers are common electrical appliances in modern homes. In order to extend the service life of the purifier, it is necessary to install a cooling fan to help reduce the working temperature during operation. As the frequency and duration of use of the purifier increase, the wear of the internal cooling fan will also become more severe.

When choosing a cooling fan for an air purifier, we need to know that the straighter the blades of the cooling fan, the larger the wind section, and the greater the air volume. Moreover, the number of blades will also have a significant impact on the air volume and pressure. At the same rotational speed, selecting a more suitable fan blade shape and number of cooling fans can provide more air pressure and airflow, thereby bringing better heat dissipation effect.

The fan blades of cooling fans are generally made of plastic, and the specific temperature they can withstand depends on the type and quality of the material. Generally speaking, the temperature that plastic fan blades can withstand is below 70°C.

For unique high temperature occasions, unique high temperature resistant cooling fans can be selected. The cooling fan adopts high temperature resistant drive IC, motor copper wire, and wires to reduce the temperature rise of the motor itself without reducing the speed. Because of the use of these high temperature resistant parts, the requirements for the quality of the fan are also high. It is generally recommended to use a double ball bearing cooling fan, so that the quality is guaranteed.

The casing in the center of the wheel uses centrifugal force to propel the air forward into the open. A fan circulates air around an entire room, or space. A blower circulates the air only on the specific or pointed area. It is uses less pressure to produce large amounts of gas.

Noise: Because the blades are periodically subjected to the pulsating force of the uneven airflow at the outlet, noise is generated. On the other hand, due to the uneven distribution of pressure on the blade itself and the blade, the disturbance to the surrounding gas and parts during rotation will also constitute rotational noise. In addition, when the gas flows through the blade, the outer layer and the vortex are separated, which causes the pulsation of the pressure on the blade and generates vortex noise.

Abnormal sound: The abnormal sound is different. When the fan is running, if there are other sounds (with more than two kinds of sounds) in addition to the wind sound, it can be judged that the fan has abnormal sound. The cooling fan may collide due to foreign matter or deformation in the bearing, improper assembly, or uneven winding of the motor winding, resulting in loosening, which may produce abnormal noise.