Recently, Zhongxiang Innovation introduced a new type of led scenery mutual help street lamp with excellent ventilation and heat dissipation effect. According to the long-term research on led street lamps, Zhongxiang Innovation has developed an independent cooling solution for LED street lamps and lanterns, so that the LED light source works in a ventilation and heat dissipation environment to solve the problem of short life of LED lamps.
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Fan Xiangsheng, director of Zhongxiang Innovation Lighting Division, introduced that the general way of cooling LED street lamps is to solder the LED light source on the aluminum substrate. The aluminum substrate is then attached to the heat sink through the thermal conductive silicone, and then the heat is radiated into the air by the heat sink. . However, due to the high temperature aging time of the thermal conductive silica gel, the heat conduction function is lost, thereby accelerating the decay speed of the lamp life. Conventional LED street light cooling components: lamp beads + thermal grease + circuit board tin plating + copper foil layer + silicone layer + aluminum substrate layer + poor thermal conductivity layer + radiator base + radiator, from lamp beads to radiator, at least 7 Channel barrier, thermal resistance reaches 15 ° C / W.
Zhongxiang Innovation through the improved LED street lamp cooling method is to directly package the LED light source on the heat sink, so that the LED lamp in the process of working, do not need to pass the thermal silica gel and aluminum substrate, directly transfer the temperature to the radiator, and then The temperature is radiated by the radiator in the air. Zhongxiang innovative led street light cooling components: lamp beads + thermal grease + radiator, thermal resistance reduced to 0.2 ° C / W, is 75 times the cooling effect of conventional led lamps, greatly extending the life of the lamp.
In addition, Zhongxiang innovative LED lamps have three major ways of heat dissipation: conduction, convection, and radiation. First, let the temperature dissipate, and then pass the heat to the radiator, and then diffuse into the air through the air convection and radiation path, and finally form the most critical convection effect. 