What are the advantages of DC DC cooling fans?
Release time:
2021-05-17
The DC DC fan is actually a DC fan that inputs DC electric energy to make the DC motor rotate to drive the fan impeller to rotate, so as to realize the conversion process of DC electric energy to mechanical energy.
The DC DC fan is actually a DC fan that rotates the DC motor to drive the fan impeller to rotate by inputting DC electric energy, so as to realize the conversion process of DC electric energy to mechanical energy. The biggest characteristic of DC DC fan is the optional DC motor. dc fan specific what are the advantages?
1. Low loss and high efficiency: Because the fan uses permanent magnet excitation, the loss generated by the excitation current of the induction motor is eliminated; at the same time, the permanent magnet brushless DC motor works in a synchronous operation mode, which eliminates the rotation frequency loss of the induction motor rotor core. These two aspects make the operation efficiency of permanent magnet brushless DC motor much higher than that of induction motor, and the efficiency of small capacity motor is improved more obviously.
2. High power factor: Since the excitation magnetic field of the brushless DC motor does not require the reactive current of the power grid, its power factor is much higher than that of the induction motor. The brushless DC motor can run at a power factor of 1, which is extremely beneficial to low-power motors. Brushless motors not only have higher efficiency and power factor at rated load than induction motors, but also have advantages at light load.
3. Good speed regulation performance and 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.
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