[Text|High-tech LED reporter Luo Shenghua] With the replacement speed of the domestic street lamp market not meeting expectations this year, the competition for cost of various LED street lamp manufacturers is becoming increasingly fierce. However, due to the inability of the original street lamps to meet the customer's requirements for replaceability and maintainability, "modularization" has become one of the most popular keywords in LED applications.
Since the industry has consistently identified the LED street lamp driving power supply as the most vulnerable part, the easy replacement of the power supply has basically reached a consensus in the industry.
Xu Guang, Technical Director of Shanxi Guangyu
The modular removal has the advantages of easy assembly, easy maintenance and replacement. At the same time, from the perspective of the industrial chain, it is possible to make the division of labor of the lamp manufacturing possible, so that the integration between the industries can be more compact and simple. Efficient.
“Light source modularization should be the direction of future streetlight technology development.” Xu Min, technical director of Shanxi Guangyu, emphasized at the 2014 High-tech LED Annual Conference, which was named by Mulinsen’s “Looking at the New LED for the Next Three Years” theme conference.
It is understood that LED street lights can be divided into two categories according to the form of replaceable light source modules: one is a light source module without heat dissipation function, including a COB light source and a light bar scheme (multiple light sources are soldered on an aluminum substrate, which can be carried The lens can also be without a lens); the second is a light source module with its own heat dissipation function.
In recent years, the LED industry's modularization process has intensified, which seems to have caused traditional lighting companies to catch a "life-saving straw." For those companies that are stepping on the LED lighting industry and others are still in the traditional lighting field, they have become the fastest-changing LED lighting by purchasing LED modular products to complete their product updates and upgrades. Good choice.
As an outdoor LED street light, it must be exposed to the sun for a long time. The objective and harsh use environment such as alternating heat and cold, air pollution, etc. all generate the market demand for modular solutions.
In the light source module solution with self-heating, everyone directly exposes the lens made of polymer material to sunlight, and the module uses silicone to seal. The cable connected by the module is also directly exposed to sunlight, and ultraviolet rays. Prolonged exposure to these materials can have a significant impact on the performance of these materials, such as lens yellowing, silica gel deterioration leading to reduced sealing performance, wire aging, and the like.
Therefore, manufacturers should pay close attention to these issues in their own solutions. The light source module solution without heat dissipation, because the light source is protected in a complete body, without lenses, wires and the like directly exposed to the sunlight, the reliability of the design scheme is slightly better.
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