LED lights LED lights heat is an important indicator of purchasing one, also an important factor in LED lights, LED street light so it is necessary to understand the heat problem!
One, LED lights cooling technology:
LED lights use more thermally conductive plate cooling technology approach is a 5mm thick copper plate, in fact, be regarded as uniform temperature board, the average temperature of the heat source off; also have to install the heat sink to heat, but the weight is too large. Weight in the street system is very important because there are 9 meters high street, if too much risk is increased, especially during typhoons, earthquakes may produce unexpected domestic manufacturers to adopt the world's first needle-cooling technology, needle radiator radiator cooling efficiency than conventional sheet has a very substantial increase, make the LED junction temperature 15 ℃ lower than the average over the radiator, and the waterproof performance is better than ordinary aluminum radiator, both in terms of weight and volume improvements. On the other hand, developed for high-power LED lamps graphite heat sink also has good thermal conductivity and thermal performance.
Second, LED lights Cooling:
Cooling LED street light are: install a fan forced cooling, natural convection cooling, loop heat pipe cooling and heat pipe cooling and so on. Outdoors at night with lights, side radiating surface located above and smaller size, which are conducive to the restricted air natural convection cooling advantages, LED lights suggest possible options for natural convection cooling. The installation of fan forced cooling mode system complexity, low reliability, heat pipes and loop heat pipe cooling mode and high cost.
Three, LED lights thermal design:
Now there is a type of air convection cooling power LED street lamps, the advantage is cooling the body cavity of a number of hot-air flow cooling channel, vertical ribs also act as a heat conducting plate surface, the heat exchange surface increases, heat emission and high efficiency. This LED lamp is designed to solve the powerLED street light heat problem, an air convection cooling high power LED street lamps, which includes a lamp assembly, heat lamps and lamp tail assembly components, body components are heat lamps arc chord a cylindrical housing, open at both ends, and its side surface is a cylindrical arc facade, facade array of through-holes are opened, the arc chord has a cylindrical housing bore 4 to 10 axially aligned with the arc column Polyphonic cylindrical surface heat plate fixed to studs, studs and arc chord thermal panels on both sides of two cylindrical housing facades also have opened a hole array, heat plate and stud arc chord on both sides of the cylindrical shell The two facades in the lamp heat sink assembly to form 5 to 11 hot-air flow cooling channels.
Four, LED lights heat problems:
LED lights thermal design problems are: fin area arbitrarily set fin layout is unreasonable, lamps fin arrangement does not take into lamps used, affect the fin effect of the play, emphasizing the heat conduction links, ignoring convection link.
LED lights for cooling problems, many companies manufacturers also consider a variety of measures, among Lighting Co., Ltd. Zhongshan Ming also considered, such as heat pipes, plus thermal grease, loop heat pipes and other technical measures, while recognizing that ultimately rely on heat LED lights radiating surface area to balance the heat transfer balance, continuous improvement of production for the major businesses to provide high-quality LED lights!surce from http://www.lead-lighting.com
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