DC DC fanIn fact, it is a fan called a DC fan, which drives the rotation of the fan impeller by inputting DC energy, so as to realize the conversion process from DC energy to mechanical energy. The biggest feature of DC DC fan is the choice of DC motor. What are the specific advantages of DC fans? The following Jiangshan cooling fan manufacturers will introduce in detail:
1. The loss is small. High efficiency: Because the fan uses permanent magnet excitation to eliminate, the permanent magnet brushless DC motor works in synchronous operation mode, eliminating the rotation frequency loss of the induction motor rotor center. The efficiency of permanent magnet brushless DC motor is much higher than that of induction motor, and the efficiency of small capacity motor is more obvious.
2. High power factor: Since the excitation field of the brushless DC motor does not require reactive current from the power grid, its power factor is much higher than that of the induction motor. Brushless DC motors can operate at 1 power factor, which is very beneficial for small power motors. Compared with induction motors, brushless motors not only have higher efficiency and power factor under rated load, but also have potential under light load.
3. Good speed regulation performance. Simple control: Compared with the variable frequency speed regulation of induction motor, the speed regulation control of brushless DC motor is not only simple, but also has better speed regulation performance.

DC DC cooling fans convert electrical energy into machinery through DC voltage and electromagnetic induction, thereby driving the blades to rotate. Therefore, the fan housing and the blades are an indispensable whole. Many people know that these two parts are very important, so what is the role between them? 1. Blade curvature: Within a certain range of DC DC fans, the greater the blade curvature, the faster the speed, the greater the gas kinetic energy, the greater the air volume and wind pressure The greater the blade resistance and the greater the motor torque. 2. Motor diameter: Due to the existence of the motor and bearings, the center part of the DC fan main shaft must not flow through the blind area, and the diameter of the main shaft will determine the size of the blind area. A large number of spindle diameters mainly depend on the power of the fan motor-the high power of the motor requires a larger stator winding coil, which must occupy more space, and then expand horizontally (increase the area) without expanding vertically. 3. The blade camber does not extend to the cross section. There are twists and turns, there is a certain arc. If the blades extend vertically along the radial direction, the airflow driven by the DC fan will be dispersed on the outlet side, and the air supply interval is short and the intensity is high. Not concentrated; if the current product version has a slight arc, it can ensure that the airflow is concentrated in the columnar space in front of the air outlet. Interval and wind pressure. 3. Blade spacing: Blade spacing is too small will cause airflow interference, increase blade surface friction, reduce fan efficiency; blade spacing is too large to increase pressure loss and insufficient wind pressure.
The characteristics of the DC fan are introduced to you, you are welcome to add, choose the DC DC fan according to its performance and characteristics, the performance purchase fan package will be introduced, if you want to buy a high-quality fan, welcome to pay attention to our DC fan agent, we will combine Your products provide you with an overall cooling fan solution.