When the cooling fan of choose and buy needs to pay attention to what

The cooling fan of choose and buy of common sense: when the choose and buy the fan generally necessary to understand the following information: the size of the fan. Confirmation is a dc fan or communication. The value of the power supply voltage of fan. Communication, for example, 220 v, 110 v, 380 v dc 5 v, 12 v, 24 v, 36 v, 48 v fan bearing, ball or oil. The air volume of fan speed. How many cubic meters per minute, for example, or how many cubic feet per minute. Wind pressure value. About bearing, oil bearing brushless dc fan motor carbon brush of traditional design, rotor blades ( Rotor) And its core shaft through the oil-retaining bearing, SLEEVE bearing for short, pin joint fixed to the new location of the motor stator, adherence to the one between the rotor and stator appropriate clearance. Core shaft and bearing, of course, also must have a gap between the existence of, don't lock shaft core die and can't work; The motor stator structure of the part ( The stator) , after the power input, will occur between rotor and stator induction magnetic field lines, and control the fan motor drive circuit of the grass. So the fan motor of traditional architecture, as long as a blade rotor and a motor stator and a drive circuit, and through the core shaft and the bearing pin joint, followed by magnetic field induction. With oil bearing strength. Resistance to the impact of outside force, formed when a transportation damage less; Cheap price, Compared with ball bearing, price difference is very big. With the defect of oil bearing. The dust in the air will be inhaled motor for fan motor work of Singapore, and stored around the bearing lubricating oil mix of sludge, noise caused by work, especially in the card of death; Bearing inside diameter wear simple, use a shorter. Wenling city chi automotive air conditioning technology co. , LTD was founded in 2002 in wen ling, is a specialized research and development, production, sales, radiator cooling fan of high-tech enterprises. Produced dc cooling fans, ac cooling fan, blower, waterproof/dustproof cooling fan, EC conversion and the cooling fan, radiator dc cooling fan, car radiator cooling fan, mute radiator cooling fan, radiator cooling fan, turbo cooling fan, dc dc cooling fan, centrifugal fan, blower, air blower factory, new energy dc cooling fan, brushless motor, etc. , has been widely used in: communications equipment, UPS power supply, medical equipment, electric welding machine, industrial control equipment, household electrical appliances, air purification industry, automobile industry, projectors, beauty equipment, sports equipment, and other areas of the industry.