The outer rotor centrifugal fan is the fan in the middle of the electric motor, and the rotor is outside the fan. The outer rotor centrifugal fan is the advantages of advanced structure and reasonable aerodynamic design using the outer rotor motor, which has the characteristics of high efficiency, low noise, light weight, compact structure, convenient installation and maintenance.
The rotor continuous blade is rotated outside the stator, has the advantages of compact structure, saving space, and exquisite design. The motor is mounted in the middle of the impeller, and the motor itself reaches the maximum cooling effect. 100% variable Compact Fan Heater velochemical start current is small, the motor protection level can reach the IP54, the insulation level is B, F Optional, and there is a thermal protector inside the motor. The fan can operate between ambient temperature -30 ° C – 60 ° C.
The outer rotor centrifugal fan is different from the inner rotor fan, many friends will ask.
The outer rotor centrifugal fan and the inner rotor fan are very common types in the fan. Because of their universal admissions, it is widely used in a variety of production areas and places in life.
First, the inner rotor fan is the core and coil composition to form a spindle or motor. After power is powered, the AC rotor fan is to generate a magnetic field through the start-up copper block within the motor; the DC fan is to generate a magnetic field and rotate from the Hall IC. . General DC fans are inner rotor structures, most of the AC fan is also inner rotor fan leaves, and the outer rotor fan leaves are basically a metal iron leaf structure.
Second, the advantage of the inner rotor fan blade fan is that the fan leaves are light, the motor is easy to produce and assemble, and the cost is low. The inner rotor fan blades are generally high speed, easy to do protective processing. And the air volume of the rotor fan can be made large, and can be made into energy-saving control products. The disadvantage is that the inner rotor fan is easily damaged by the voltage unstable and the service life is short. And the motor temperature rise, low speed, and power consumption.
Third, the outer rotor fan leaves are basically connected together, and the motor can make a fully enclosed honeycomb structure and can run quickly by starting the capacitor. The advantage is that the big brand of the international brand is more in the outer rotor structure. Because of its compact structure, space saving, low power consumption, high speed, comprehensive design, and much work efficiency is much higher than the inner rotor. The motor is mounted in the middle of the impeller, the motor itself reaches the maximum cooling effect, the metal fan leaves are large, the wind turbine resistant to high temperature environments, 100% variable speed of external rotor motor start current small, motor can directly achieve dust and moisture, The motor protection grade can reach IP54, and can even be an IP56 protection level. The insulation level is B, f optional. There is a thermal protector inside the motor, and the fan can operate between the ambient temperature -30 ° C – 60 ° C, not easy to damage ,long lasting. Disadvantages is that the cost is higher than the inner rotor fan, suitable for small boxes or structures.
It can be seen that the difference between the outer rotor centrifugal fan and the inner rotor fan is very obvious. We need to purchase a display according to the requirements of the use of a fan, or the predetermined effect will not be possible. Of course, if there is more questions, you can consult our Jindian Electric.