DC cooling fan is an important cooling equipment of modern industrial machinery. It has the characteristics of good heat dissipation effect, long service life, simple structure and convenient installation.
DC cooling fan is mainly composed of rotor, stator, fan blades and other auxiliary components. There should be many semiconductor elements in the control circuit. They are now stored in one or more ICs. Many manufacturers specifically design and manufacture many models of control motor ICs for fan circuit providers to design and use. Different types of IC control circuits are different, but the main purpose is to provide effective functions of the coil and related characteristics of the fan for more effective control and protection.
The working principle of the DC cooling fan: through DC voltage and electromagnetic induction, it is converted from electrical energy to mechanically drive the blades to rotate. Simply put, it is a cooling device that relies on coils and ICs to continuously switch to drive the blades. The DC cooling fan adopts the most advanced design, with the characteristics of large air volume, low noise, long service life, and corrosion resistance.
2. Adopt high quality bearing, silicon packing line, DC fan through a paint reflector, such as: DC hot fan. The DC cooling fan itself has two types of alarm sensors and speed sensors. The alarm sensor can give an alarm signal. When the fan speed is lower than the sensor, the alarm signal is given, and the speed signal output can monitor the wind speed in real time. Obviously, the greater the wind, the higher the heat dissipation capacity of the DC cooling fan. This is because the heat capacity ratio of air is a certain amount of air, that is, more air in a single time can bring more heat. Only through the steel sheet of the DC circuit output speed is usually pulse form, each pulse represents the wind through the total data display host speed signal is not a multiple of each real speed fan.
The cooling fan is less efficient, not as strong and rough as the suction type, and the blowing type is milder. Ordinary office machines like these are especially good for use, but they are not so small. In terms of use, attention should be paid to whether the rated power supply of the cooling fan is two USB. If the rated power supply is large, the power supply of the computer cannot be carried, but the power consumption of the computer is fast, which is very impractical. Therefore, pay attention to it, whether it can support dual USB power supply, save power, simple installation, open and close.