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Characteristics and advantages of EC cooling fan
Nov 29 , 2021
The more commonly used brushless cooling fans are divided into EC, DC, AC, etc. Among them, EC fans are DC fans, and EC cooling fans convert AC to DC. In addition to DC voltage power supply, AC voltage can also be used for power supply. The voltages of 12V, 24V, 48V, 110V, 220V, 380V are universal, without conversion. 1. The EC fan breaks the frequency limitation of the traditional AC fan, and can...
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Principle, advantages and disadvantages of cross flow fan
Dec 15 , 2021
Cross flow fan was first proposed by French engineer Mortier in 1892. The impeller is multi blade, long cylindrical and has forward multi wing blades. When the impeller rotates, the air flow enters the cascade from the open part of the impeller, passes through the interior of the impeller, and is discharged into the volute from the cascade on the other side to form the working air flow. The flow o...
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What are DC Centrifugal Fans?
Dec 21 , 2021
Centrifugal fans are sometimes called radial fans or centrifugal blower fans. They have a motor-driven hub which contains an impeller that discharges air into the housing and then directed to an outlet. The centrifugal fan exhausts air at an angle of 90 degrees (perpendicular to the air inlet). Centrifugal type fans mainly pressurize the air in the blower housing. Compared with axial fans, they pr...
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Axial Fans VS. Centrifugal Fans – What’s the Difference?
Dec 21 , 2021
Applications: Axial cooling fan, which can effectively move a large volumes of air, is usually used to cool small and large spaces. They can cool electronic equipment or computer rooms. They can be used for field cooling of HVAC operations, air conditioning condensers, heat exchange units or industrial systems. Axial flow fan can also be used as exhaust fan. Centrifugal cooling fans, considering t...
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Use of axial fans and blowers
Dec 28 , 2021
In the cooling fan, the DC fan provides variable flow and the AC fan provides constant flow. In addition to AC power supply and DC power supply, cooling fans are usually classified according to the way air enters and exits the fan. In an axial fan, air enters and exits in the same plane. If the airflow leaves in different planes, this is called centrifugal design or blower. Natural convection cool...
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Cooling fan - Speed control systems
Dec 30 , 2021
Brushless DC (BLDC) fans are the most common type used to cool electronic equipment. Many cooling fans now have additional functions which provide greater control the fan speed and operation, thus improving the system performance. Having a fan run constantly even when maximum cooling is not required, does not result in an efficient system and can reduce the service life of a fan. If the average sp...
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Cooling Fan - Brushless DC Motor
Jan 05 , 2022
Motors that power ventilation cooling fans are usually divided into brushless motors or induction motors. Brushless motors are sometimes called electronically commutated motors. Commutation refers to the act of switching the electrical connection from one motor winding to the next one. Motor windings in the DC cooling fan motor is generally located in the stator or stationary portion of the ...
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Cooling Fan - AC Shaded Pole Induction Motor
Jan 05 , 2022
In addition to the DC brushless motor, there is another type of shaded pole induction motor in the exhaust cooling fan. As the name suggests, Induction motors is because electromagnets in the stator induce magnetism in the rotor. They induce magnetism in the rotor because, unlike the rotor in a brushless DC motor, the rotor in an induction motor contains no magnets. A separate small winding is use...
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