LED lighting products for its energy saving, environmental protection and other characteristics, known as the real “human beings of light”, one time, LED road lighting has become the focus of a substantial number of large-scale corporate markets and capital in droves, LED application products in LED road lights product is the most difficult to do, most of the designers have emphasized that it is in a “systems engineering” comprehensive industry technology combination. There are requirements for road lighting designs of Arts and Sciences; has the particularity of the LED light source for a reasonable cooling technology; optics are suitable for road lighting with light of knowledge; has LED power of the “long-life” bottleneck, products truly energy requirements ….. Many manufacturers do not have the sufficient condition on the basis of blind imitation, they follow the established methods and procedures, no other reason, because “we all do” and “Everyone thinks should not have done.”
Let us work together to explore the current appearance of LED road lighting design
One.wind resistance requirements
Traditional street has taken great pains in shape, almost all streamlined design, in my opinion this design is not only just to look good, there is another important reason is that the impact of wind differentiation, that is, to reduce wind resistance. And today’s LED lights its own weight heavier than conventional lights and more, and almost all flat boxy shape, worse is commonly used in LED lights on the renovation project, that was originally installed conventional street light poles , and not through the direct replacement LED lights reinforcement. Taken together these three issues, security issues are worrisome. It is recommended that designers should consider in the design of wind resistance problems, so you can really stand the rain street.
Two.air convertion cooling channel
The importance of cooling of the LED lamps we all understand, but in the heat, but some manufacturers on the way into the errors. I have seen some manufacturers put LED mounted to the heat sink, and then loaded into the entire radiator shell conventional street lights, and some made directly after the LED light bulb in the form of integration, and then directly onto conventional street lights shell, lamp shell without any processing. Both methods are wrong. LED lamps scattered heat dissipation is ultimately put into the air, and the above two approaches just put heat into the lamp housing, lamp shell of the heat which in turn heats the luminous efficiency of the LED so reduce heat more so a vicious circle.
To solve the above problem is to a good air convection fixture passage, which is in the appropriate location on the luminaire vent the hot air to go out, the cold air can be advanced to such
This can greatly improve the cooling effect of the lamp. Figure 2 is developed by a team of my street. Lamp shell heated air through the vent cover in the outflow from the pressure difference causing cold air from the bottom vent and the gap between the modules to supplement it, thus forming convection channel
Three. Below 10 degree angle intuitive phenomenon
I had previously talked about a true story, it is because the wrong section of the road because of the light guide often caused by a certain road traffic accidents example that tells us that people with the street lighting functions should have good guidance, while This is precisely the issue ignored by many designers.
According to my investigation and research, found that LED lights installation angle is less than 10 °, its guiding role is not very good, I suggest that to meet the lighting requirements of the premise try to control more than 10 °, but not too large, because it is too large easily lead to excessive glare and there is not a reasonable portion of the light used.
Four. Combining local culture design
The many advantages of the LED, its compact “posture” the most suitable design, which is the conventional gas-discharge incomparable, we combine the surrounding environment and local cultures do, play lanterns during the day and night dual viewing fold effect, greatly increasing the added value of the lamp.
Five.Superior modular maintenance issues
LED often encounter a problem which has its own advantages – long life, maintenance brings, it is precisely this advantage take away the jobs of many people, but in fact in accordance with the current technology can not do to the maintenance-free, but because of the instability of the power, the light fades serious problems to the manufacturers so bring a heavy maintenance costs. Referred to safeguard it shows modular superiority. Modular is a plurality of LED integrated, made a standard module itself can solve heat, light, and IP protection and other issues, a lamp consists of several modules. Modular power not only to avoid the risk of high power, IP protection is easy to maintain it as easy to conventional street lights, greatly reducing the maintenance burden of enterprises, but also easy for the owners accepted, happy, why not. Figure 3 in the upper row of three lights and a lower row of lights are the first examples of modular design.
Six.Adjustable mounting angle
The adjustable mounting angle is the elevation angle of the installation of lighting within a certain range is adjusted as needed. Due to the current LED lights are basically used in the transformation process, are not-for-lamp replacement rod. The original poles are not tailored according to LED lights, jumping arm angle is not identical. Can not adjust the mounting angle of the lamp may be applied in this way, in another a road do not apply, so as to make lamps with better versatility, adjustable connector is a necessary condition, is a measure of the importance of light weight grade.