Introduced high-power LED light radiator
2010/5/22

The so-called led (Light-emitting Diode abbreviation) is the use of semiconductor light-emitting diode technology as the light source of a new type of environmentally friendly lighting products. LED lights are energy saving, easy to control, maintenance, safety and environmental protection, long service life, its life of up to 50,000-100,000 hours, far more than traditional incandescent bulbs and fluorescent lamps 1,000 hours to 10,000 hours. LED as a new energy-saving, environmentally friendly green lighting products, is the future trend.
However, there are currently insufficient LED lighting products, in addition to higher prices, the luminous efficiency is low, work will produce more heat, the radiator will need to export and distribute heat to the environment, otherwise it will not even affect the life of the LED work.
First. High-power LED lamps for general lighting (1W above), introduced
1 common type - bulb lights, spotlights, candle lights, tube lights, ceiling lights, lights, etc., and accordance with the specifications of the interface there are many different models (some lamps samples below):
2 form - usually including lamp, LED light panels, radiators, power supply, interface, or sets of rubber insulation (typically used in metal heat sink), etc. (as shown below):
Second. LED heat sink effect and works description
Radiator's primary role is to work in the LED chip continue to export produce and distribute heat to the environment, enabling the chip to maintain the required temperature range, thus ensuring the LED lights to work properly. Good or bad depends largely on the radiator heat sink thermal resistance, the smaller, under the same conditions, the lower the junction temperature of LED lights, LED junction temperature is lower, the longer chip life. Heat sink thermal resistance should include thermal resistance and heat resistance of two parts. For certain shapes of the radiator, the main thermal resistance and thermal conductivity of the heat sink material, the greater the thermal conductivity, smaller thermal resistance, thermal conductivity, the better; in certain environmental conditions, the heat sink thermal resistance depends heat sink surface area and material of the radiation coefficient, the greater the cooling area, the higher the radiation coefficient, the smaller the thermal resistance, heat the better. Therefore, LED lights must have a certain amount of heat the radiator area, while production of the radiator material must be of the thermal conductivity and high thermal radiation coefficient; In addition, the thermal conductivity of the material itself should also have light weight, easy processing, low prices and so on.


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