The Hong Kong-Zhuhai-Macao Bridge connecting Hong Kong, Macau and Zhuhai will be opened to traffic at the end of 2017. The total investment is more than 100 billion yuan. It is a bridge, island and tunnel with a total length of 55 kilometers. It is the longest sea-crossing bridge in the world. At the same time, it also supports the world's advanced LED street lights and control systems.
Shanghai Sansi provides modular ceramic heat-dissipating LED street lamps for the whole process of the bridge, with a total of nearly 10,000 sets, which can meet the demand for illumination brightness, illumination time and illumination color temperature when the bridge passes, overcome the heat dissipation problem of street lamps, and make the life and reliability of street lamps reliable. Sexual leap.
Ceramic cooling LED street light
Traditional street lamps usually use PCB boards. A large amount of heat is generated in the lamps. There is a natural conflict between the heat dissipation and the insulation layer. As a result, the heat inside the lamps does not emanate, and the temperature rise of the LED junctions is too high, which shortens the service life of the lamps. Reliability also causes a lot of waste of resources.
In order to solve this problem, Shanghai Sansi took the lead in abandoning the PCB board (aluminum substrate), instead of using the ceramic body as an alternative, the chip was directly soldered on it, on the one hand, the ceramic itself was insulated to prevent leakage risk and non-ferrous metal pollution, on the other hand, The heat is fundamentally handled and the service life is greatly improved. The use of this technology can be said to be a new revolution in LED lighting fixtures. The difficulties are as follows.
First of all, the ceramic lamp body needs high-temperature sintering. In this process, many factors cannot be completely controlled, which leads to a low yield rate of the ceramic lamp body, and it is difficult for the general manufacturer to bear the research and development cost for improving the yield rate. Secondly, it is the most critical place for ceramic heat dissipation technology to solder the chip on the ceramic lamp body while ensuring the reliability, the appearance of the appearance, and the scientific arrangement of the zero-component structure.
Shanghai Sansi has gathered the research strength of optics, structure, power supply, materials and control direction. This technology has also been applied to LED tunnel lights. Whether it is Sansi ceramic heat-dissipating LED street light or ceramic heat-dissipating LED tunnel light, it has already been implemented in many places across the country. Application, contributing to the national green energy conservation cause.
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