Understand the principle and installation of DC cooling fan

DC cooling fan is an important cooling device in modern industry. It is widely used because of its simple design, convenient installation, good heat dissipation effect and long service life. What is the design principle of the DC cooling fan? How to install after purchase

Main structure and principle of DC cooling fan:

DC cooling fan is mainly composed of motor rotor, stator, fan blade and other auxiliary components. There are many semiconductor elements in the control circuit. Today's technology can place multiple semiconductor components in one or more interface circuits. Many manufacturers will specially design motor ICs with multiple control types for circuit designers. Different types of IC control systems are different, but the main purpose of these projects is to provide coil function, so as to more effectively control and protect the DC cooling fan. The working principle of the constant heat dissipation engine is mainly to convert electric energy into kinetic energy through constant pressure and electromagnetic induction to drive the fan blades to rotate. With the continuous switching between the coil and IC, the magnetic induction ring is driven by the cooling device that drives the fan blade to rotate.

Installation phase of DC cooling fan:

1. Disassemble the DC cooling fan and check the internal printed board and coil winding. Use a multimeter to check the quality of each component of the three coil winding and PCB.

2. The diameter of the fan mounting hole must be greater than the fan diameter.

3. When installing a fixed cooling fan, do not leave any gap between the fan and the panel, otherwise the cooling effect will be affected.

4. Changing the wind direction and flow direction will also weaken the heat dissipation effect.

5. After installation, align the screw box fan and insert it into the panel hole, fix it with the attached mounting screws and nuts, and then install the cover up and down.

DC fan, EC fan, CPU heat sink