国产精品99久久久久久董美香-国产精品99久久久久久www-国产精品99久久久-国产精品99久久99久久久看片-国产精品99久久-国产精品999在线

What are the advantages of DC cooling fans in the electronic

What are the advantages of DC cooling fans in the electronics industry?
 
With the continuous development of the electronics industry, many electronic products are used more and more widely, and the demand is also increasing. The demand for accessories required by electronic products is also increasing, such as: DC cooling fans, so what are the advantages of DC cooling fans that are worthy of businessmen's favor and pursuit? Here, Ruiapple Electronics, a manufacturer of cooling fans, briefly introduces the advantages of DC cooling fans.
 
What are the advantages of DC cooling fans in the electronics industry?
Advantages of DC cooling fan:
 
1. The inverter has low cost and low capacity
 
The current when the inverter continues to run, the rated value refers to the peak value of the rectangular wave, the induction motor requires sine wave current, and the DC motor requires rectangular wave current. The current rating when the inverter continues to run generally refers to the effective value of this sine wave. In order to maintain the inverter's ability to control the motor current, there should be a sufficient difference between the inverter's DC voltage and the motor's induced electromotive force. In this case, if it is assumed that the peak currents of the DC motor and the induction motor are equal, the power output of the former is 33% higher than that of the latter. That is to say, the same rectifier/inverter can drive more power than the induction motor. 33% brushless DC motor.
 
2. High power factor
 
Its power factor is much higher than that of induction motors, because the excitation field of DC motors does not require reactive current from the grid. DC motors can run at 1 power factor, which is extremely beneficial for small power motors. Compared with induction motors, motors not only have higher efficiency and power factor at rated load, but also have advantages at light loads.
 
3. Low loss and high efficiency
 
The loss caused by the excitation current of the induction motor is eliminated, and the permanent magnet DC motor works in synchronous operation mode because of the use of permanent magnet excitation. The frequency loss of the rotor core of the induction motor is eliminated. These two aspects make the operating efficiency of permanent magnet DC motors far higher than induction motors, and the efficiency of small-capacity motors is more obvious.
 
4. Good speed regulation performance and simple control
 
The speed control of the DC fan is not only simple, but also has better speed control performance than the frequency conversion speed control of the induction motor.　These advantages and characteristics of the DC cooling fan can be used very well in the electronic industry, mechanical equipment, because of its compactness and convenience and other reasons, it also makes it more widely used. With the rapid development of electronic products in the future, cooling fans will certainly gain more dominance and become an indispensable part of electronic products. Let us wait and see.