1. Classified by blade type and air flow mode: axial fan, centrifugal fan, side flow fan and diagonal flow fan; When the axial fan works, the blades push the air to flow in the same direction as the shaft, so it is called an axial fan; When the radial fan works, the blade drives the air to flow in the direction perpendicular to the shaft (i.e. radial), so it is called the radial fan (BLOWER)
2. According to the working current mode: DC FAN, AC FAN; DC and AC fans are commonly used in refrigerators;
3. According to the use of fans, they can be divided into: power fan, chassis fan, audio fan, refrigerator fan, car fan, desktop computer fan (DESK TOP), notebook fan (NOTEBOOK FAN), VGA fan, GPU fan, SERVICE fan, PDA fan, LCD fan;
