Outdoor Lighting Application Led Tube
Posted by sanny111 on September 12th, 2014
Outdoor Lighting Application Led Tube
Led Tube outdoor lighting as a result of more complex environment, affected by temperature, UV, humidity, rain rain, dust, chemical, gas and other natural conditions, the impact over time, it will cause Led Tube light fades to a serious problem. Therefore be considered final, outdoor lighting designers should consider when designing these external environmental factors on the Led Tube of outdoor lighting.Second, the heat lamps outdoor Led Tube material selection should pay attention
Shell and radiator as a whole, to solve the heating problem of Led Tube, this approach is better, generally use aluminum or aluminum alloy, copper or copper alloys, and good thermal conductivity of other alloys. Convection cooling with air, strong winds and the heat pipe thermal cooling heat, (heat is similar to jet cooling of a heat pipe cooling, but the structure is more complicated.)
(Photo by:6061 aluminum plate)
Choose what kind of cooling method, the cost of the lamps have a direct impact, should be considered, select the best product support and design programs.
Lampshade material selection is crucial, the current use of transparent plexiglass, PC materials, the traditional glass shade is transparent, what what kind of election material of the shade with the design of positioning on product quality, in general, outdoor lighting The best shade is the traditional glass, which is to create long-lived, the best choice for high-end lighting. The use of transparent plastic, plexiglass and other materials to do the shade, interior lighting of the shade to do well for the outdoor life is limited, as outdoor sunlight, ultraviolet radiation, dust, chemical gases, day and night temperature changes and other factors that shorten the lamp life of aging , followed by the liquidation of pollution, could not easily clean and so reduce the impact of transparency lamp light output.
Third, Outdoor Led Tube chip packaging technology
Current domestic production of Led Tube light (mainly street) are mostly used more than 1W of Led Tube series and parallel for assembly, this approach more advanced thermal packaging of high technology Hydraulic Fittings products, is not easy to create high-quality lighting. Or is the use of 30W, 50W or more modules to be assembled, in order to achieve the required power, the Led Tube packaging materials useful in epoxy resin, useful silicone encapsulation. The difference is: less temperature epoxy resin, a long time easy to aging. Silicone encapsulated the temperature is better, should be used with attention to the selection.
The author's view is: A multi-chip package and heat sink is better overall, or multi-chip package with aluminum plate and then through the phase change materials or thermal grease and radiator to link the products made by the device thermal resistance than Led Tube Assembly the thermal resistance of the product less one to two thermal resistance, more conducive to heat dissipation. Lamps by Led Tube module, the module substrate is generally copper substrates, which joins with the external heat sink to use a good phase change materials, or good thermal grease to ensure the copper substrate in time spread to the heat outside the heat up device, such as the handling is not easy to make the heat accumulation caused by module chip temperature rise too high, the chip work of Led Tube. I believe that: multi-chip package suitable for manufacture of general lighting, modular package ideal for space limited situations Compact Led Tube light manufacturing (such as car headlights the main lighting, etc.).
