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Solar street light LED street lamp photometric enough how to solve the problem?

LED road lighting failure is the key problem of temperature, it happened that LED street lamp is usually lost in this link. LED lights because light power is greater than the household lamps and lanterns, so manufacturers in the cooling plate fins, the design of the cooling module so painstakingly, assembly should be in the heat of lamps and lanterns



the LED street lamp' LED street lamp is made of street lamp, LED lamps and lanterns with high efficiency, safety, energy saving, environmental protection, long service life, fast response speed, high color rendering index of unique advantages, the city lighting energy saving is of great significance. 】 Key problem is that the temperature of droop, it happened that the LED street lamp often lost again in this section. LED lights because light power is greater than the household lamps and lanterns, so manufacturers in the cooling plate fins, the design of the cooling module so painstakingly, assembly should be on the outside of the lamps and lanterns of the cooling module, and protected from weather erosion of the lacquer that bake. But the external protection of paint to the heat of the heat dissipation module and sealing the back, lead to bad heat dissipation LED epitaxial 【 Epitaxial ( English: Epitaxy) Refers to a kind of used for semiconductor device manufacturing process, the original chip to grow new crystallization, to made the new technology of semiconductor layer. 】 Droop. Emitting heat of epitaxial LED belongs to the small scale of concentrated heat, application in high power lamps, power input power is big also, LED the interface temperature is quite high, under the street light long time continuous work, such as the heat dissipation module not effective heat dissipation, can affect the service life of the LED and light, LED street lamp serious as current light failure is caused by these factors. LED street light is used in the outdoor, with the interference of environmental climate factor, so most of the manufacturers is to LED street lamp radiator shell with anode protection, or spray paint, in order to avoid the erosion of acid and alkali substances. Anodization of life is not long, time is a bit long or oxidation discoloration, if you want to remove the heavy industry, not only time-consuming and labor will increase maintenance cost; Protection of the lacquer that bake cost is low, the effect of protection, but generally no cooling function of the lacquer that bake, paint body itself will form the blocking effect, and increase the thermal resistance of LED street lamp radiator such as 【 Thermal resistance is when there is a heat transfer on the object, the object of the ratio between two end temperature difference and heat source of power. 】 Instead of resistance, not only did not help, because the heat sealed inside the radiator, LED power reduction, finally will cause serious droop. The above has been in the LED lamps and lanterns industry exist serious problems, almost is the public acceptance of LED street light cannot pass procurement unit. Put forward according to the following from the actual case of some of the LED road lighting failure solving suggestion: suggest one: from the perspective of the base material to solve the existing problems, Suggestions street lamp manufacturers, starting from the basic material of fundamentally by inside and outside of solving the problem of high power LED heat source. For example, in the light emitting component and aluminum substrate bonding, heat conduction glue' Thermal conductive adhesive is a one-component, heat conduction model, room temperature curing silicone adhesive sealant. 】 Will play a key role, some manufacturers think thermal conductive film or thermal conductive rubber gasket 【 Thermal conductive rubber gasket ( Commonly known as white glue, named for its white emulsion) , is a high performance gap filling thermal conductive materials, mainly used for electronic equipment and heat sink or product transfer interface between the shell. 】 The coefficient of thermal conductivity of the Coefficient of thermal conductivity is refers to under the condition of steady heat transfer, 1 m thick material, the surface temperature of 1 degrees (on both sides K,℃) In 1 seconds ( 1) By 1 square meter area of heat transfer, the unit is w/m · degrees ( W/( m·K) , here for K can be substituted for ℃) 。 】

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