Definition:

Variable frequency fan is a household appliance that uses a motor to drive the fan blade to rotate to achieve accelerated air circulation, mainly used for cooling and cooling air circulation. It is widely used in homes, classrooms, offices, shops, hospitals, hotels and other places.

Brushless DC fan is a kind of direct current motor without mechanical commutator and brush, it uses electronic commutator device, so as to overcome the general DC motor has commutation spark, poor reliability, loud noise, radio interference and other weaknesses. It not only has the mechanical characteristics and adjustability of general DC motor, but also has the advantages of wide speed regulation range, small size, quick start, reliable operation, high efficiency and long life. At present, it is widely used in the small electric fan industry, the general power is less than 100W.

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