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LED Street Light Solutions
Oct 17, 2017

LED Street Light is made of street lamp, LED lamps and lanterns with high efficiency, safety, energy saving, environmental protection, long service life, fast response speed, high color rendering index of unique advantages, the city lighting energy saving is of great significance.

Road lighting is an important part of urban lighting. Traditional street lamps are often adopted, and the high pressure sodium lamp has a 360-degree glow. The disadvantages of large loss of light cause great waste of energy. At present, the global environment is deteriorating and countries are developing clean energy. With the rapid growth of the national economy, China's energy supply and demand contradiction is becoming more and more prominent, the power supply is beginning to have a serious shortage, and energy saving is an urgent problem to be solved. Therefore, it is of great importance to develop new high efficiency, energy saving, long life, high color index and green LED street lighting.

Road lighting is closely related to people production and living, with the speeding up of urbanization in our country, LED Street Light with directional light, low power consumption, good drive performance, fast response, high seismic ability, long service life, green environmental protection advantages of gradually into people's horizons, to become the world's most advantages instead of traditional light source of a new generation of energy-saving light source, therefore, LED lights will be the best choice of the road lighting energy saving reconstruction

solutions

To solve these problems, it is suggested that street lamp manufacturers should start from the basic materials and solve the problem of high power LED heat source from the inside out. For example, in the light emitting component and aluminum substrate bonding, heat conduction glue can play a key role, some manufacturers think thermal conductive film or coefficient of thermal conductivity of thermal conductive rubber gasket is better, the film thickness is as thick as possible, don't want to thermal resistance. The thermal conductivity is good, and the thermal resistance of film thickness is not useful. In addition, the thermal conductive film or soft thermal conductive gasket can not really be close to the base plate, but there are many pores in the laminated surface. These pores are viewed under an electron microscope, which is like an empty cavitation, which is another form of thermal resistance. In the presence of so many interference heat resistance, thermal thermal conductivity is reduced.

The thermal resistance is low to be used for the conductive adhesive, recommended screen printing construction of soft ceramic conductive adhesive. Construction of the soft screen printing ceramic thermal conductive adhesive is different from the traditional joint type thermal conductive film, soft ceramic heat conduction glue is soft and half liquid in a screen printing machine blade coating on aluminium substrate, the thermal conductive particles can penetrate into pores on the surface of the substrate and to fill to the full. This will form a completely flat, non-porous plane, which will be completely closed when the LED is bonded. Thus reduce the thermal resistance to the lowest degree, heat can be conducted away quickly, reduces the temperature of the LED grain, naturally also prolongs the service life of epitaxial and significantly delay the onset of droop. Moreover due to the construction of the soft screen printing ceramic thermal conductive paint is malleable, baking at high temperature or back to welding, will change together with the aluminum plate heat bilges cold shrink, stress is very small, not cause aluminum substrate warpage, more won't explode plate.

The exterior protection of LED Street Lights and lanterns is recommended for the use of LED lamps. 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. Outdoor LED street lamps, LED landscape lights, or LED advertising billboards are also exposed to wind and rain, acid rain bird droppings, air dust and black smoke emission. And so on and so on. Therefore, this kind of spray type soft ceramic radiating paint must have the properties of anti-acid and alkali, and the anti-acid base value is in PH3~ 11, which can effectively protect the exterior of LED outdoor lamps.

The cost structure of LED Street Light is continuously improved with the development of packaging technology, onboard design and cooling module structure, and the cost is also reduced with the development of technology and market demand. However, the number of companies invested in the improvement of materials is not much, which is mainly related to the process and habits of business development in Taiwan. Taiwanese manufacturers are good at manufacturing process and design, and have less ink on material foundation development. Therefore, in solving technical problems or reducing costs, it is more likely to favor procurement thinking or management thinking. But in the first place, the Japanese and Japanese manufacturers will think from the application materials to reduce costs, improve quality and profit from innovation.