Wen Shangsheng: LED lamps should be cooled and integrated in the lamp housing

Polaris Power Environmental News: The development of China's lighting industry still has to go through many bumps, and the prospects are boundless and have a long way to go. Especially in today's lack of core technology, it is necessary to take the core technology strategy as a powerful force to drive the healthy development of China's lighting industry. From October 16th to 20th, the website will be held in Foshan, Zhongshan and Shenzhen with the latest technology of the lighting industry in the background of the Aladdin Magic Awards 2013 China Lighting Industry Annual Festival. The results summit forum, based on the promotion and recognition of the latest materials and supporting technologies, invites domestic and foreign experts and well-known enterprise technical representatives to jointly discuss and exchange lighting industry technology.
Among them, Wen Shangsheng, a professor at the School of Materials Science and Engineering at South China University of Technology, will attend the event as a guest speaker. The reporter recently exchanged views with Prof. Wen Shangsheng and shared the speeches of this forum in advance.
Reporter: The theme of this speech by Mr. Wen is LED heat sink technology. So, we want to get a general idea of ​​what is the status quo of LED development in this area?
Wen Shangsheng: At present, the heat dissipation technology of LED lamps is mostly the grafting and application of traditional heat dissipation technology on LED lamps, and there are also a small number of new technologies developed specifically for LED heat dissipation.
Reporter: In recent years, some developed countries around the world have launched a fierce technical competition around the development of LED. Among them, LED heat dissipation has always been an urgent problem to be solved. To completely solve the problem of heat dissipation of LEDs, what are the difficulties in the future?
Wen Shangsheng: In a strict sense, LED heat dissipation is not a big problem. In the mature stage of LED technology, the overall light efficiency of LED lamps is not high enough. Although we can solve the problem of LED heat dissipation very well, the cost is too high. In order to better cost performance, we need to find suitable ones. Cooling solutions, we are doing this in the current and future. In the mature stage of LED technology, the overall luminous efficacy of LED lamps is much larger than 200lm/w. There are many options for easily solving the problem of LED heat dissipation. At that time, LED heat dissipation will not be the focus of everyone's attention.
Reporter: What is the experience of Wen’s choice in the choice of heat-dissipating materials? Talk about what is the best cooling solution for LED lamps in your mind?
Wen Shangsheng: Commonly used inexpensive materials will be the goal pursued by LED heat dissipation materials. There is no need to specifically design heat dissipation for LED luminaires, which is definitely the best cooling solution, but this is only an ideal state. I think that the solution that can be integrated into the lamp housing integration will be the best solution for heat dissipation of LED lamps.
Reporter: What is the difference between the technology of heat sink materials used in indoor and outdoor LED lamps?
Wen Shangsheng: There is no big difference in the heat-dissipating material technology used in indoor and outdoor LED lamps. To say the difference, mainly because the environmental conditions used by the two are different, for example, corrosion resistance, moisture resistance, dust resistance, etc.
Reporter: The latest technology and results summit of the lighting industry has been held to the fourth session. What suggestions and opinions does Mr. Wen have for our forum? What are the areas for improvement?
Wen Shangsheng: The holding of your forum has played a very good role in promoting the technical exchange and progress of the LED industry. I hope that your forum can adhere to the technical route and get better and better.

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