Structure and production process of LED panel light
Advantages of LED lamps: energy, environmental protection, long life; convenient control; colorful and flexible application. Let's talk about LED panel lights.
There are two ways to install LED panel lights, which can be mounted on the ceiling, or hung on the top of the wall or the surface of the installation body.
Assembling process:
1. Put the heads of the four screw rods into the holes of the back cover of the lamp body;
2. Slide the four screws to the small holes and make sure that the swash plate is stuck in the cover;
3. Align the holes of the power supply structure with the four screws. If they are not aligned, they can be moved slightly;
4. Tighten the nut and the screw, and fix the power supply and the panel light box;
5. Connect the bolt-type structure of the power output end with the bolt-type card position inside the box, and insert it in conjunction with it, and do not force it in the opposite direction.
6. Insert the lamp body into the ceiling, connect the plug to the power supply, turn on the switch, and the panel light is turned on.
Note: The panel light is designed to be the same size as the ceiling. When embedded, it cannot be placed obliquely to prevent it from sliding down. Since each construction method is different, please focus on checking whether the skeleton of the ceiling can bear its weight and whether the embedded area matches, otherwise, reinforce the panel light and hang it.
1. Aluminum frame
Appearance structure, and the main structure of LED heat dissipation - generally use AL6063, aluminum extrusion die, low initial cost investment, beautiful surface treatment, good heat dissipation effect, I went to the exhibition a few days ago and found that some manufacturers began to make die-casting frames, so that the IP level can be It is higher, and the sealing is better, and the overall appearance is beautiful, but the cost of the initial investment in the mold is higher.
2. Diffuser plate
Disperses the light of the light guide plate evenly, and also plays the role of blocking the dots - the diffuser plate generally uses acrylic 2.0 plate or PC material, the cost of acrylic is lower and the light transmittance is slightly higher than that of PC. Acrylic is brittle and anti-aging The performance is weak, the price of the PC is slightly expensive, but the anti-aging performance is strong. After the diffuser is installed, the dots cannot be seen, and the light transmittance should be about 90%. The light transmittance of acrylic is 92%, and that of PC is 88%. You can choose the material of the diffuser plate according to your needs, and acrylic materials are generally used.
3. Light guide plate
The side LED light is refracted by the dots to change the light angle and scatter - the light guide plate is the heart of the LED panel light. The dot design is very important. If the dot design is not good, the overall light effect you see is very poor. Generally, there will be 1. Middle bright , the two sides are dark 2. There is a bright side on the incoming light side, and the middle is dark 3. From different angles, the overall brightness is inconsistent 4. The local dark area is obvious. A large part of the light efficiency of the light guide plate is in the design of the dots, followed by the selection of the plate, but it is not right to blindly pursue the brand plate.
4. Reflective paper
Reflect the residual light on the back of the light guide plate - generally RW250.
5. Rear cover
Sealed lamp body - generally AL aluminum, the overall texture is strong, and can play a little role in heat dissipation.
6. LED light source
Generally, 3528 is used, and some people use 5630 and 5050. The luminous efficiency of 5630 and 5050 is not high, and the design of the dots is difficult, and the versatility is poor, but the cost is low. 3528 has high luminous efficiency and strong versatility. Generally, it can be used directly by buying other light guide plates at the beginning, without re-proofing and design.
7. Drive power
Lamp drive - there are currently 2 power supply modes 1. Direct use of cross-current power supply (this mode has high efficiency, PF value as high as 0.95, high cost performance) 2. Constant voltage with cross-current mode (stable performance, but low efficiency, high cost) Generally used This mode is designed for customers who require certification. Because the lamps are low-voltage lamps with 24V input, no safety regulations are required. Directly using a power supply with safety regulations can be shipped to various shelves.
