DC cooling fan is a kind of cooling device powered by DC power supply. It has the characteristics of high efficiency, high power factor and simple control, which is an indispensable part of future electronic equipment. DC cooling fan consists of rotor, stator, outer frame, motor and other components, simple structure, excellent performance. Parameters such as fan size, rated voltage, rotational speed, air volume, air pressure, noise value, etc. are important indicators of fan performance.

The working principle of DC cooling fan is through the Ampere right-hand rule, so that the silicon steel sheet produces different magnetic poles, and the rubber magnet produces suction and repulsion, thus driving the fan blade rotation. This fan is driven by a pulse generator using Hall components, with no electromagnetic interference, long life and other advantages, widely used in electronic and electrical engineering applications that require forced cooling.

The types of DC cooling fans include mixed flow, axial flow and centrifugal type. It is mainly composed of fan frame, fan blade, bearing, PCB control circuit and drive motor. The materials and colours of the fan frame and fan blades can be selected according to the requirements, and the rotational speed is related to the number of electromechanical winding turns, the wire diameter, the outer and bottom diameters of the fan impeller, the shape of the blades and the bearings used.

DC cooling fan is widely used in computers, automobiles, communication equipment, purifier industry, ups power supply, medical equipment industry and other fields, can reduce the temperature of the working environment of the equipment, prolong the service life. The all-metal high temperature resistant, dust and moisture resistant fan is suitable for operation in high temperature, heavy dust, humid air and other environments.