Sunfree Lighting Limited is a high-tech manufacturer specialized in R&D and production of solar led street light

LED street light heat treatment should be thinking about what factors

by:SUNFREE     2021-02-05
In order to solve the problem of LED street light, heat, must optimize the structure and composition of material of LED street light, and from inside to outside the problem of high power LED heat source. Manufacturer of LED lights ED street lamp light is higher than high pressure sodium lamp many color, high pressure sodium lamp only around 23, color rendering index and the LED street light color rendering index above 75, think in terms of visual psychology, to achieve the same brightness, LED street light can, on average, more than 20% lower than the high-pressure sodium lamp. LED street lights maintenance costs low, compared with the traditional street light, LED street lights maintenance cost is extremely low, through the comparison, can recover all input costs less than 6 years. LED street light automatic control and energy saving device, can realize to meet the requirements of different times lighting cases, most likely to reduce the power, saves the electricity. Can realize the computer dimming, period and control, light control, temperature control, humanized functions such as automatic inspection. When the light emitting module and aluminum harden timeliness, thermal conductive adhesive plays a key role. Some LED street lamp manufacturers think better performance of thermal conductivity of thermal conductive film or gasket, the thicker the film, the better, but not consider thermal resistance. No matter how good thermal conductivity, the contact thermal resistance of film thickness are useless. In addition, the thermal conductivity of membrane or soft thermal conductive gasket can't really match the substrate, sub surface pore. The porosity under the electron microscope is regarded as an empty hole, this is another form of thermal resistance. In a large number of thermal resistance interference under the condition of heat conduction, heat efficiency and thermal efficiency is almost down. The use of thermal conductive adhesive, thermal resistance should be low. Recommend the use of soft ceramic heat conduction glue for screen printing. Silk screen printing, soft ceramic thermal conductive adhesive is different from the traditional laminated thermal conductive adhesive film. Soft ceramic thermal conductive adhesive is soft half liquid. When the silk screen printing machine blade coating on aluminium substrate, the thermal conductive particles will penetrate into the holes on the surface of the substrate and fill it. This LED to a completely flat aperture plane, it will fully meet the LED epitaxial carrier. In this way, minimize thermal resistance, and can quickly heat conduction, which naturally reduces the environment temperature of the LED tube core, and also extend the life span of the epitaxial crystal and greatly delay the occurrence of the attenuation of light. In addition, due to silk screen printing office applying soft ceramic coating of thermal conductivity of ductility, in the process of high temperature baking or circumfluence with the aluminum plate thermal expansion and contraction, stress is very small, aluminum plate will don't bend, don't cause. Will burst, please protect the outside of the LED lamps and lanterns of LED lamps and lanterns is recommended for the soft radiating ceramic paint. The spray type soft ceramic thermal spray paint can be directly on the external LED lamps and lanterns, operation is simple, can adapt to various shapes of the cooling structure, can also be adjusted to different colour, according to the demand of the landscape design. Spray type radiator paint inside the soft ceramic particles, is through nanoscale chemical processing, fine particles is not only easy to spray gun, also let the same coating area of the thermal conductive particles on the more and crowded, make temperature volatile through the area of the loose is bigger, make LED lamps and lanterns, heat conduction out quickly. Soft radiating ceramic paint type belongs to thermosetting material, meet the RoHS environmental protection safety specification, construction procedure is simple and without any special tools, after baking hot setting, but for a long time under the high temperature of the LED will not have a qualitative change. Use in the outdoor LED lights, LED landscape lamp or LED advertising billboards, also will face the wind and rain, acid rain, bird droppings, dust and smoke emissions hELlip; And so on of acid and alkali. So this kind of type soft radiating ceramic painting must have the characteristics of acid and alkali resistance, resistance to ph range in PH3 ~ 11, can effectively protect the LED outdoor lamps and lanterns is not eroded appearance. As packaging technology, the load board design and the development of the heat dissipation module structure, LED street light continuously improve cost structure, cost with the development of technology and market demand of lower and lower. However, in the manufacturer not the improvement of material and the main related to Taiwan on the development of industry and commerce and habits.
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