The precautions for heat dissipation and welding of high-power LED products such as LED explosion-proof floodlights have been improved, especially high-power LEDs. Because of their high power, about 60% of electromagnetic energy will be energy (with the growth trend of semiconductor technology, the efficiency of photoelectric conversion will gradually improve). It is specified that terminal equipment customers must do a good job in heat dissipation when using high-power LED products to ensure the normal operation of high-power LED products.
1. The appearance and material designation of the radiator: if the product is not sealed well, it can immediately generate heat convection with the external air scene. It is recommended to select aluminum profile or copper radiator with fins.
2. Reasonable heat dissipation area: for 1W high-power LED white light (the same for other colors), our factory strongly recommends that the total reasonable heat dissipation area of the radiator be ≥ 50-60 cubic centimeters. For 3W products, it is strongly recommended that the total reasonable heat dissipation area of the radiator be ≥ 150 cubic centimeters. The higher power depends on the premise and test results, and the radiator temperature should not exceed 60 ° C as far as possible. The company's management is fully in line with the international progress, and has taken the lead in passing the certification of IS09001 quality management system, ISO14001 Jingyu management system and OHSAS18001 occupational health and safety management system.
3. Connector type: when connecting the high-power LED base steel plate with the radiator, please ensure that the appearance of the two is flat and the contact is excellent. In order to improve the fusion of the two appearances, it is recommended to coat a layer of thermal conductive silica gel (thermal conductivity of thermal conductive silica gel ≥ 3.0w / m.k) on the bottom end of the LED base steel plate or the appearance of the radiator. The thermal conductive silica gel needs to be evenly and properly coated, and then fixed with screws.
When welding high-power LED products, we must pay attention to the selection of constant temperature soldering iron. The welding temperature is below 260 ℃, and the time when the electric soldering iron contacts the LED welding layer does not exceed 3S; It is a high-power LED encapsulated with silicone rubber. The highest temperature resistance of silicone rubber is 180 ℃, so the welding temperature of LED should not exceed 170 ℃. Ultra low temperature electric soldering iron and ultra-low temperature soldering paste (wire) are used for electric welding. The LED bonding layer does not span 3S at one touch.
Benwei Lighting is an LED Tube, LED flood light, LED Panel Light, LED High Bay, LED manufacturer with 12 years of experience. If you want to purchase a high-quality LED flood light or have a more in-depth understanding of the application of LED flood lights, please contact send us inquiry， our web: https://www.benweilight.com/.
