In order to promote their own products, people continue to build a stage. Therefore, the DC fan in the stage lighting has been applied more and more widely. How does the DC fan in the stage light cool the light?
The principle of the light DC fan is: using a heat-dissipating material heat sink as a medium, the heat generated by the light fixture is conducted in a physical contact manner. This high-thermal-conductivity material is generally an aluminum material because of its light weight, low cost, and easy fabrication. Therefore, to become the basic material for the manufacture of lamps and lanterns, and in order to maximize the heat conduction to the radiator, but also need to seal a high thermal conductivity medium between the heat source and the heat sink for heat conduction, for LED devices The heat-conducting medium between the heat sink and the heat sink is generally a silicone heat-conducting potting material, and the silicone high-conductivity heat-conducting potting material can effectively improve the heat dissipation capacity of the LED bulb light, and also has excellent protection performance and has good protection. Salt spray, moisture resistance and weather resistance, especially in the resistance to temperature shock, are unmatched by other materials, and can be used under -60°C～200°C for a long time.
The basic working principle of the DC fan is to use a DC motor and an AC motor type motor in different ways. Using a computer as a DC fan motor, the power supply voltage is +12 V and the speed is from 1000 to 10,000 rpm. Direct current DC energy is converted into mechanical energy by rotating machinery. It consists of a three-part stator, rotor, and commutator. There are two or more rotor coils. The magnets around which the wires are wound are called windings. When a current passes through a winding, a magnetic field, a magnetic field, and a force generated by a stator magnetic field. Since the stator is fixed, the rotor's rotating force.
The stage light cooling fan is commutated by a brushless DC motor. Because of the friction brush, the brush even shortens the life of the motor. At the same time, the brush processed at high speed will generate sparks, but also disturb the electronic circuits around. People have also invented a brushless DC motor called a brushless motor.
