The influence of PCB aluminum substrate on lamp life
PCB aluminum substrate is actually a unique metal-based PCB circuit board, which has good thermal conductivity, electrical insulation performance and mechanical processing performance.
LED light sources are generally soldered on aluminum-based circuit boards. Aluminum-based circuit boards have a good heat dissipation function. The thermal conductive paste or laminated thermally conductive double-sided adhesive applied in the middle of the aluminum substrate has extremely strong bonding strength, and The thermal resistance is small, which can effectively replace grease and mechanical fixation.
Moreover, the flatness is better, and the gap between the surface of the electronic component and the aluminum substrate can be filled, and the heat emitted during the working process of the LED can be effectively improved, thereby increasing the service life of the product.
It is mainly for heat dissipation, because the LED emits a lot of heat when it is working. In order to ensure its life, the heat needs to be quickly dissipated. The role of the aluminum substrate is like this
