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aluminium pcb board for led
| This is a single-layer PCB aluminium board, using 2W/(m·K) thermal conductive expoxy and 3003 aluminum, high reflectivity solder mask, finished product thickness of 1.6mm, applied to household lighting. | |||||||||
Application of PCB aluminium board in LED lighting
Pcb aluminium board is widely used in the LED lighting industry, it has excellent thermal conductivity, good electrical insulation properties and stable mechanical properties, so it has an important use in the field of LED lighting.
Pcb aluminium board can be used as the base of LED luminaires. Due to the high heat dissipation requirements of LED chips, and the poor thermal conductivity of ordinary FR-4 circuit boards, they cannot meet the needs of LED lighting. The LED lighting aluminum substrate has high thermal conductivity, which can effectively conduct the heat generated by the LED chip to the aluminum substrate quickly, and dissipate the heat through the heat sink on the aluminum substrate, so as to ensure the normal working temperature of the LED chip and prolong the service life of the LED lamp.
Aluminium pcb board for led is a type of MCPCB LED，the circuits on the Aluminium pcb board for led are usually made of copper foil, which enables the transmission and control of current. By laying out the appropriate circuits on the aluminum pcb board, the brightness adjustment, color change and other functions of the LED luminaire can be realized. At the same time, the circuit on the aluminum pcb board of LED lighting can also be connected with other circuit modules to realize the intelligent control and linkage of the LED lighting system
LED lighting aluminum pcb board can also be used as housings for LED luminaires. The outer layer of the aluminum pcb board for LED lighting is usually coated with a special material that can provide good waterproof, dustproof and corrosion resistance. This protects the LED chips and circuits from the external environment and prolongs the service life of the LED luminaire. At the same time, the shell of the LED lighting aluminum pcb board can also be designed according to the need, which has a good appearance effect and improves the aesthetics of the LED lamp.
LED lighting aluminum PCB have a variety of uses and can be used as bases, circuit boards, and enclosures for LED luminaires, providing good thermal conductivity, electrical insulation, and mechanical properties. Its application in the LED lighting industry continues to expand, providing strong support for the development of LED lighting. In the future, with the further development and innovation of LED lighting technology, LED lighting aluminum PCB will be more widely used to bring people a better lighting experience.
What are the key parameters of aluminum PCB LED？
1.Thermally conductive materials/thermally conductive resins
Heat dissipation is one of the most critical functions of aluminum PCB, so how does aluminum PCB dissipate heat? The answer is thermal conductive resin, which conducts the heat generated by the components to the aluminum plate, so as to achieve the effect of rapid heat dissipation. At present, the thermal conductivity of the mainstream thermal conductive resin is 1-3W, which can basically meet most of the LED needs, and the larger the thermal conductivity, the higher the cost. It should be noted that the thermal conductive layer is thick, and this thickness has a great relationship with the thermal resistance, the thicker the thermal conductive layer, the worse the thermal conductivity effect will be, generally 0.1mm can be used, and if there is a requirement for withstand voltage, the thickness can be increased appropriately, but it is best not to exceed 0.2mm.
2.Withstand voltage
The thermal conductive resin also acts as an insulation, and the ability to withstand voltage is also absolutely related to the thickness of the thermal conductive resin, every 25um thickness of the thermal conductive material can withstand a voltage of 300V, that is, a thickness of 0.1mm insulation layer can withstand a voltage of 1200V. The thicker the insulation, the better the pressure resistance, but the thermal conductivity decreases accordingly. The trade-off requires the designer to find the balance through calculations.
3.Aluminum Model
At present, the commonly used aluminum model is 1100/3003/5052/6061, the first digit represents the series of aluminum, the larger the number, the higher the hardness, the stronger the rigidity, but the cost is correspondingly higher, at present, 1100 and 3003 aluminum is the largest amount, 1100 aluminum is close to pure aluminum, the hardness is low, the surface is easy to oxidize, and 3003 material is better than 1100 aluminum in hardness and surface, but the cost is relatively high.
4.Light reflectivity
LED lighting generally uses white light, therefore, there are special requirements for the reflectivity of solder mask ink, the reflectivity of general white solder mask ink is 65%-75%, the larger the value, the higher the brightness of the light.
Application of PCB aluminium board in LED lighting
Pcb aluminium board is widely used in the LED lighting industry, it has excellent thermal conductivity, good electrical insulation properties and stable mechanical properties, so it has an important use in the field of LED lighting.
Pcb aluminium board can be used as the base of LED luminaires. Due to the high heat dissipation requirements of LED chips, and the poor thermal conductivity of ordinary FR-4 circuit boards, they cannot meet the needs of LED lighting. The LED lighting aluminum substrate has high thermal conductivity, which can effectively conduct the heat generated by the LED chip to the aluminum substrate quickly, and dissipate the heat through the heat sink on the aluminum substrate, so as to ensure the normal working temperature of the LED chip and prolong the service life of the LED lamp.
Aluminium pcb board for led is a type of MCPCB LED，the circuits on the Aluminium pcb board for led are usually made of copper foil, which enables the transmission and control of current. By laying out the appropriate circuits on the aluminum pcb board, the brightness adjustment, color change and other functions of the LED luminaire can be realized. At the same time, the circuit on the aluminum pcb board of LED lighting can also be connected with other circuit modules to realize the intelligent control and linkage of the LED lighting system
LED lighting aluminum pcb board can also be used as housings for LED luminaires. The outer layer of the aluminum pcb board for LED lighting is usually coated with a special material that can provide good waterproof, dustproof and corrosion resistance. This protects the LED chips and circuits from the external environment and prolongs the service life of the LED luminaire. At the same time, the shell of the LED lighting aluminum pcb board can also be designed according to the need, which has a good appearance effect and improves the aesthetics of the LED lamp.
LED lighting aluminum PCB have a variety of uses and can be used as bases, circuit boards, and enclosures for LED luminaires, providing good thermal conductivity, electrical insulation, and mechanical properties. Its application in the LED lighting industry continues to expand, providing strong support for the development of LED lighting. In the future, with the further development and innovation of LED lighting technology, LED lighting aluminum PCB will be more widely used to bring people a better lighting experience.
What are the key parameters of aluminum PCB LED？
1.Thermally conductive materials/thermally conductive resins
Heat dissipation is one of the most critical functions of aluminum PCB, so how does aluminum PCB dissipate heat? The answer is thermal conductive resin, which conducts the heat generated by the components to the aluminum plate, so as to achieve the effect of rapid heat dissipation. At present, the thermal conductivity of the mainstream thermal conductive resin is 1-3W, which can basically meet most of the LED needs, and the larger the thermal conductivity, the higher the cost. It should be noted that the thermal conductive layer is thick, and this thickness has a great relationship with the thermal resistance, the thicker the thermal conductive layer, the worse the thermal conductivity effect will be, generally 0.1mm can be used, and if there is a requirement for withstand voltage, the thickness can be increased appropriately, but it is best not to exceed 0.2mm.
2.Withstand voltage
The thermal conductive resin also acts as an insulation, and the ability to withstand voltage is also absolutely related to the thickness of the thermal conductive resin, every 25um thickness of the thermal conductive material can withstand a voltage of 300V, that is, a thickness of 0.1mm insulation layer can withstand a voltage of 1200V. The thicker the insulation, the better the pressure resistance, but the thermal conductivity decreases accordingly. The trade-off requires the designer to find the balance through calculations.
3.Aluminum Model
At present, the commonly used aluminum model is 1100/3003/5052/6061, the first digit represents the series of aluminum, the larger the number, the higher the hardness, the stronger the rigidity, but the cost is correspondingly higher, at present, 1100 and 3003 aluminum is the largest amount, 1100 aluminum is close to pure aluminum, the hardness is low, the surface is easy to oxidize, and 3003 material is better than 1100 aluminum in hardness and surface, but the cost is relatively high.
4.Light reflectivity
LED lighting generally uses white light, therefore, there are special requirements for the reflectivity of solder mask ink, the reflectivity of general white solder mask ink is 65%-75%, the larger the value, the higher the brightness of the light.
