AC axial fans are common types of fans used in electronic components. The axial-flow fan uses a propeller to create a large airflow in the direction of the axis, moving air in a parallel direction of the blade axis. In other words, the fan blows air across the axis of the blade, hence the name axial fans. The fan moves heated air away from the components and draw cooler air over them, thereby giving a superior life expectancy to the components.
An AC (alternating current) cooling fan operates by blowing air along the axis of the fan. The AC fans are available in frequencies of 50 Hz and 60 Hz, as well as varying rated voltages. Standard sizes for an AC axial fan are 60mm, 80mm and 120mm. The most common AC cooling fan voltages that are available in the United States are the 115 and 230 volt fans. While NMB manufactures 110 and 200 volt fans, these are most commonly found in Asia and Europe. AC cooling fans are found in a variety of applications where the need for ventilation is important.
These fans are designed for force-air cooling of electronic devices. The purpose of the AC fan, as well as any other cooling fan, is to protect the electronic devices in the system by keeping them at an optimal cooling temperature. The fan will generate cool air by spinning at variable rates, thus protecting against thermal variances that will undoubtedly harm the devices and will prevent premature failure. Optimum performance of your equipment is the fan's first priority.
Computers, electronic components and machines today have increased in power consumption resulting in an increase in the amount of heat produced by the components in computers. In order to function effectively and to avoid overheating, malfunction, instability and breakdown leading to a shorter lifespan, these components need to be kept within some specific temperature range.
The capacity of power a system can hold, or the amount of power flexibility it allows dictates the type of fan which can be used. The difference in the cost between AC fan and DC fan is negligible, therefore choosing the right fan according to its functionality and performance. While AC fans provide a constant flow, DC fans provides a variable, uneven flow. DC fans consume lesser power, lower levels of Electro Magnetic Interference and Radio Frequency Interference. DC fans and blowers provide a silent operation and can be used in applications such as medical instruments, telecom switches, car entertainment systems, etc.
When choosing fan for your applications, it is important to look at the cooling requirements of the system and applications, the fan type, the air flow, and AC or DC power operation.