What is the difference between a boosted cooling fan and a regular cooling fan?
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News Center
Release time:
2021-05-11
The cooling fan includes a boosted fan, also known as a straight-flow fan. So why is it called a “straight-flow fan”? Well, the name itself reflects the fan’s unique design—its airflow is straight and uniform.
The booster fan is also a straight-flow fan. As its name suggests, the airflow it produces is straight. The airflow direction is altered by a multi-ribbed diffuser with a turbine-like structure. These ribs have an arc-shaped design, and their configuration has been optimized through software simulations, enabling the fan to generate a spiral airflow while maintaining a straight overall flow direction. This type of fan boasts strong operational stability, excellent cooling performance, and a long service life.
How do you choose the most suitable fan?
1. Check the current—under the same rotational speed, same voltage, and same airflow, a cooling fan with a lower current is better. This is because a lower current means less power loss in the fan, resulting in lower energy consumption.
2. Listening to Noise—At the same rotational speed and voltage, a cooling fan with lower noise is superior. This is because low noise levels are closely related to factors such as blade design, bearings, lubricants, and assembly structure.<1> The better the blade shape is designed, the greater the airflow will be, and the lower the noise will be. This reflects both advanced manufacturing techniques and the skill level of technical personnel.<2> The higher the bearing precision, the less friction there will be between the bearing and the shaft core, and the more precisely the dimensions will match. Consequently, the noise level will naturally be lower. This is highly dependent on the material used for the bearing.<3> Lower noise indicates less friction, which in turn extends the service life of both the bearing and the shaft core. As a result, the lifespan of DC fans will also be longer.
3. Measuring Vibration—For fans of the same specifications and rotational speed, a cooling fan with lower vibration is preferable. The lower the vibration, the smoother the fan operates, resulting in less wear on the bearings and shaft core, and consequently, a longer service life.
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Next: How do you adjust the speed of a DC fan, and what’s the difference between it and an AC fan?
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