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Time：2022-04-25Views：0
What is a DC cooling fan? A DC cooling fan refers to a cooling fan powered by a DC power supply. Its operation changes with the heat. Running at a slower speed, the DC fan will generate less noise and consume less energy. In most design requirements, the air temperature is usually lower than the maximum design temperature after the DC cooling fan has been running at high speed for several hours. The editor will give you a comprehensive introduction to the DC cooling fan, so that you can have more understanding and understanding of it.
1. The types of DC cooling fans are:
1. Mixed flow: It has the above two airflow modes.
2. Axial flow: the airflow outlet direction is the same as the axis direction.
3. Centrifugal type: the airflow is thrown out along the blade by centrifugal force.
Second, the composition of the DC cooling fan: fan frame, fan blade, bearing, PCB control circuit, drive motor.
3. Selection of plastic material and color of DC cooling fan frame and fan blade:
1. Fan frame + fan blade: black PBT material (plastic heat distortion temperature 230℃)
2. Fan frame + fan blade: transparent for PC raw material (plastic thermal deformation temperature 120℃)
3. Fan frame + fan blade: PBT raw material white (plastic heat deformation temperature 230 ℃)
4. Speed: Speed refers to the speed at which the fan rotates, usually measured by the number of turns in 1 minute, namely: rpm. The rotational speed is related to the number of turns of the electromechanical winding, the wire diameter, the outer diameter and bottom diameter of the fan blade impeller, the shape of the blade and the bearings used.
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