1. Aerodynamics, which uses the shape of lamp shell to produce convective air, is the lowest cost way to strengthen heat dissipation.

     2. Thermal conductive plastic shell, filling thermal conductive material when plastic shell is injected, increasing thermal conductivity and heat dissipation capacity of plastic shell.

     3. Aluminum fins are the most common way of heat dissipation. Aluminum fins are used as part of the shell to increase the heat dissipation area.

     4. Surface radiation heat dissipation treatment, the lamp shell surface radiation heat dissipation treatment, is simply coated with radiation heat dissipation paint, can take heat away from the lamp shell surface by radiation.

     5. Heat dissipation by heat conduction tube. Using heat conduction tube technology, heat is transferred from full-color LED display chip to shell heat dissipation fin. In large-scale lamps, such as street lamps, is a common design.

     6. Fan heat dissipation, the lamp shell with long-lived high-efficiency fan to strengthen heat dissipation, this method is low cost, good effect. However, to change the fan is troublesome and not suitable for outdoor, this design is relatively rare.

     7. The transparent liquid with high thermal conductivity is filled into the bulb by using the packaging technology of the liquid bulb. This is the only technology that uses LED chips to conduct heat and dissipate heat on the surface of light besides the principle of reflecting light.

     8. Integration of heat conduction and heat dissipation-the application of high thermal conductivity ceramics. The purpose of heat dissipation of lamp housing is to reduce the working temperature of LED full-color display chip. Because the expansion coefficient of LED chip differs greatly from that of our usual metal thermal conductivity and heat dissipation material, it is impossible to weld directly the LED chip in order to avoid damage of the whole LED by high and low temperature thermal stress. The chip of color display screen.

     The latest high thermal conductivity ceramic material, thermal conductivity close to aluminum, expansion system can be adjusted to synchronize with LED full-color display chip. In this way, heat conduction and heat dissipation can be integrated and the intermediate process of heat conduction can be reduced.

Source: Display Home