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According to the author to incomplete statistics , the failure of today's LED lighting products generated about 80% from the power supply , from years of continuous development of LED panel lighting products packaging technology continues to improve and cooling technology , the stability of the light source has reached a good level even that is said to have bad light and color drift , which is mainly caused by the irrational thermal design . Direct necrosis situation has very little power is relatively more serious problem to a problem generally occurs directly dead lights or flashes , and the relatively high frequency of occurrence . Materialist dialectics tells us to fix the principal contradiction , the main contradiction is resolved minor conflicts will be solved.
Conventional street lighting failure and the need to maintain a light sodium , sodium national standard warranty period of one year , street unit will keep a certain amount of sodium library . Sodium lamp with a mature national standards, its main parts size, power and other key parameters are uniform , with interchangeability. The current failure of the main power LED lamps , so to solve the main contradiction is to solve the power problem . Due to the current lack of a mandatory power LED uniform standards , fragmented market power , single-channel , multi-channel , different sizes , resulting in many problems. With the ultra- high-power LED market power appears , 4 or more drive power everywhere , so frequent failures , but also forced LED panel lights when the cost of the overall design , modeling of the storm , coincide on many factors, often resulting in LED power supply maintenance difficulties heavy , and thus the owners complained, the media fanning the flames caused by a misunderstanding of the LED tube lights we affect the industry 's reputation and development.
I advocate the development of LED lights drive power five-point concept :
1 to give up power, ultra- high-power , high stability of development of small and medium power supply , preferably between 30W-40W, the maximum should not exceed 50W. Because the greater the power , the greater the fat calories, which is also more compact components , is not conducive to the heat , and the temperature is the culprit of a power failure . Furthermore , the development of small power relatively more mature , stability and cost has advantages. In fact, many power companies do not know the greater the power , are reluctant to do high-power , but under the pressure applied manufacturers , to develop high- power passive , many programs do not have the time-tested and proved , are hastily implemented the projects are experimental products, so failure after another. In contrast medium power supply due to the early development of the technical solution to mature more. " Moso Power Supply Technology Co., Ltd. " The technology solutions designed to instill an interactive lighting manufacturers , power companies and product applications business , which greatly reduces the failure rate and improve the quality of lighting products , power companies , lighting companies , the owners have benefited , too.
Moreover , high-power and ultra- high- power because the head is large, the installation is not flexible, because small and medium power supply , installation and more flexible.
2 . Give up four or more outputs, one-way or two -way development outputs , high current and large current to abandon the development of small currents. Outputs more difficult to do , the higher failure rate, I think so far no manufacturer can stand out which power each of the offerings , said: " In today's cost- premise demanding , 4 or more drivers I guarantee no problem ." Of outputs , the more the greater the total output current , and the current is mainly due to the heat , the heat may not be voltage , but the current will generate heat , and a simple calculation can be considered proportional to the square of the heating power and current that is 2 times the original current increases , it will increase the heating power of the original four times to 3 times the original current , the heating power will increase to 9 times the original . So I suggest that the best control in the current below 1A .
3 . Intelligent control should be one of the biggest advantages of LED bulb lighting, and intelligent control that is intelligent control power . Intelligent Control on street lamps and tunnel lighting applications is particularly important , in terms of on street lamps , intelligent control can be in different time periods, according to the road traffic density to achieve stepless control the lamp power , both to meet the application requirements , but also to achieve energy savings. Application of tunnel lighting is even more important, it can automatically adjust the brightness according to the tunnel entrances outside the tunnel brightness , and give the driver a safe driving environment.
4 cooling and protection are the main external factors of a power failure . Not only the power supply itself will heat lamps will heat, how reasonable both dissipate heat is an issue that must be considered lighting design engineers , we must prevent excessive concentration of heat to form a heat island effect , the impact of power life . Further protection is very important problem , penetration of moisture may cause a short circuit of the power supply , dust on the housing will affect the heat supply , the exposure is likely to cause a high temperature aging , and other components and wiring , protection is to actually solve a series of problems.
5 . Maintain viability. Although we had done a lot in front of the four steps , but the power failure problems still can not be completely avoided, which is why we propose to maintain viability. Lighting design engineers to consider the power of maintenance problems , only we do with the replacement of the power supply to replace conventional lighting sources so simple, we have to pass on streetlight maintenance task units is possible. The concept I used for lighting module power already new ideas, we should work hard to maintain the luminaire designers put their own requirements as a maintenance man more simple the better. In actual use, the failure rate of rotation of the plug connection is high, most of the leakage cause malfunction. We have come to realize the rational design of a modular approach , should think on module power integrated approach, because the overall modular power is small, if the power plug can be a way to solve the maintenance of the title , so that is the power unit inventory streetlights , ( today part of the power but not the suspect relative LED lamp life ) , business and property owners are benefiting .
In summary , LED lamps , although the majority of failures occur on the power supply , but it does not blindly blame the power companies. Power failure is a result of the combined effects of multiple factors , many of which are designed by the lighting business caused by the irrational . Want to reduce the power failure , power companies need to enhance interaction and lighting companies to work together |
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