LED thermal management technologies include thermal management of chips, packaging, and system integration. On the chip side, people strive to improve the crystal quality of the material or design a new structure to improve the internal and external quantum efficiency of the chip itself, which is smaller than the conventional low thermal conductivity sapphire substrate chip.
Chip (quantum efficiency; power density; heat flow expansion; substrate material, etc.)
LED thermal management package (package material; package structure; packaging process, etc.)
System integration (refrigeration technology; materials; processes, etc.)
LED heat dissipation structure description (illustration path: use illustration \ LED heat dissipation structure description)
1. The necessity of LED heat dissipation (heat dissipation is the technical bottleneck of current semiconductor lighting technology)
LED is a photoelectric device. In the working process, only 10% to 40% of the electrical energy is converted into light energy, and the rest of the electrical energy is almost converted into thermal energy, so that the temperature of the LED rises. LED temperature rise is the main cause of LED performance degradation and failure. The LED junction temperature rises, resulting in reduced luminous efficiency, poor reliability, reduced service life, and increased heat generation.
2, the solution
LED thermal management overview
(A) Improve the structure and materials of LED chips and packages - the upper and middle reaches of the industry to complete (B) system integration, mainly for the heat dissipation of the lamps, improve the heat transfer power - the work of heat dissipation design
3, LED lamp heat dissipation structure analysis chip (node ​​temperature control at <85 ° C) - (heat resistance is small products are conducive to heat dissipation) - lamp bead substrate - aluminum substrate (increasing copper area is conducive to heat conduction) - (using heat conduction Silicone) - Radiator housing light (good structure for air convection) - surroundings
Edit: Sophy
Vertical Laptop Stand,Dual Vertical Laptop Stand,Vertical Laptop Stand 2 Slot,Vertical Laptop Stand Adjustable,etc.
Shenzhen Chengrong Technology Co.ltd is a high-quality enterprise specializing in metal stamping and CNC production for 12 years. The company mainly aims at the R&D, production and sales of Notebook Laptop Stands and Mobile Phone Stands. From the mold design and processing to machining and product surface oxidation, spraying treatment etc ,integration can fully meet the various processing needs of customers. Have a complete and scientific quality management system, strength and product quality are recognized and trusted by the industry, to meet changing economic and social needs .
Best Vertical Laptop Stand,Wood Vertical Laptop Stand,Wooden Vertical Laptop Stand,Dual Vertical Laptop Stand
Shenzhen ChengRong Technology Co.,Ltd. , https://www.dglaptopstandsupplier.com