What is the blade function of the SanAce DC cooling fan?-Capital-Cooling fan manufacturer

When it comes to DC fans, those who have understood cooling fans must know that DC fans undergo DC voltage and electromagnetic induction, converting electrical energy into machinery to drive the blades to rotate. Therefore, the fan casing and blades are essential components, and most people know that these two parts are important. So what is the role between them? Today, the SanAce DC cooling fan editor will give you a science popularization:

Firstly, blade curvature: within a certain range, the larger the blade curvature, the greater the gas kinetic energy at the same speed, that is, the greater the air volume and pressure; At the same time, the greater the resistance on the blades, the greater the torque requested from the motor.

Secondly, motor diameter: Due to the presence of the motor and bearings, there is inevitably a blind spot in the center of the DC fan spindle where there is no airflow passing through, and the diameter of the spindle determines the size of this blind spot. The size of the spindle diameter mainly depends on the power of the fan motor - high-power motors require larger stator winding coils, which inevitably occupy more space. In the absence of vertical expansion (increasing height), they have to expand horizontally (increasing area).

SanAce DC cooling fan

Thirdly, blade curvature: In addition to having a certain curvature on the cross-section, the fan blades do not extend straight along the radial direction in the overhead plane, but slightly bend in the direction of rotation, forming a certain curvature. If the blades extend straight along the radial direction, the airflow driven by the rotation of the cooling fan will be scattered on one side of the air outlet, with short air supply intervals and lack of concentration of "force"; If the current product version is slightly curved, it can ensure that the blown airflow is concentrated in the cylindrical space directly in front of the air outlet, increasing the air supply interval and air pressure.

Fourth, blade spacing: If the spacing between blades is too small, it can cause airflow disturbance, increase friction on the surface of the blades, and reduce fan efficiency; Excessive spacing between blades can lead to increased pressure loss and lack of wind pressure.

Capital Technology Co., Limited is the chief agent of SANYO DENKI, one of the leading enterprises of the cooling fan industry. We are a factory who also have our own independent brand CAPITAL product series. The main products are cooling fan, DC/AC fan, radiator, filter, reactor etc. We can provide customer with the most professional and perfect technical support, welcome to contact me at anytime at rainlee@szcpt.com.

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