1, reduce the working environment temperature of the equipment. DC fan is mainly for the solution of computers, electrical appliances, machines, power supply cooling problems, reduce the working environment temperature of the equipment to extend the service life of the equipment. There are also some of the equipment using cooling fan air volume, wind pressure to complete the function of the equipment, such as air ball table is the use of fan pressure so that the ball can drift in the surface of the ball table.
2, dust and moisture. High temperatures, heavy dust, air humidity and other relatively harsh environments, which requires all-metal high-temperature resistance, and dust and moisture-proof function of the fan. This DC fan due to high technical requirements, the price is relatively high widely used in computers, communication products, optoelectronic products, consumer electronics, automotive electronics, exchangers, medical equipment, heaters, air-conditioning units, inverters, teller machines, automotive coolers, welding machines, induction cookers, audio equipment, environmental protection equipment, refrigeration equipment, and other traditional or modern instruments and equipment.