How to choose the right chassis energy-saving EC fan.electric fan direct sales

　　Specifically summarized as the following points:

　　First: When purchasing a chassis cooling fan, you must first determine the model and appearance you want, and then determine the voltage, bearing, wire length, air volume, speed, current, noise, etc. The material of the general frame is aluminum and gold, and the leaves are made of PBT. The material of the frame and blade of the DC fan is generally made of PBT.

　　Second: get the cooling fan first look at the voltage on its trademark, (AC voltage can be divided into 110V, 220v, 380v. DC voltage can be divided into 5v 12v 24v 48v.), avoid the wrong voltage to burn the cooling fan, cause adverse effects on the chassis cabinet.

　　Third: Check whether the bearing on the trademark is ball or oil. The ball is the HB mark, and the oil is the HS mark. The life of the ball is 30,000 to 50,000 hours, and the life of oil is only 10,000 to 30,000 hours.

　　Fourth: The power cord is also very important. If the power cord is peeled or copper wires are exposed where it is not welded, then do not use it, it will cause harm to people, and if the consequences are serious, electric shock will occur.

　　Fifth: To see whether the quality of a cooling fan is good, it depends on the copper wire and stator of the cooling fan. (The copper wire includes pure copper wire, aluminum-clad copper, and even iron-clad copper. The quality of the belt) copper wire and stator directly affects the life of the cooling fan, and a good copper wire and stator can increase the speed. If you use poor copper wire and electronics, it will directly affect the service time of the chassis cabinet.

　　Sixth: Generally, the operating temperature of the cooling fan is between minus 20-80 degrees, and the humidity is between 20%-85%. Beyond this range, you can choose a cooling fan with aluminum and gold frame blades.

　　Seventh: If the cooling fan makes a noise during operation, the oil-containing bearing may be caused by the absence of oil or the displacement of the stator inside the fan. If the ball bearing is used, the balls may not be good, or the ball cover may fall off, or the inner stator of the fan may be displaced.

　　Eighth: The cooling fan suddenly does not turn during operation. The most likely reason is that the fan blades have been burned, or the voltage is connected incorrectly (110v and 220v will turn at the beginning, and it will automatically turn after 10-30 minutes. Does not turn), it is also possible that the copper wire inside the cooling fan is broken, or the power cord may fall off.

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