Ultra-high power LED street lamp combined type heat pipe heat dissipation device
A technology of LED street lamps and ultra-high power, applied in cooling/heating devices, lighting devices, circuits, etc.
Inactive Publication Date: 2010-01-06
渠志鹏
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Problems solved by technology
At present, the junction temperature of high-power LED street lamps is still stagnant at about 70°C, while the optimal junction temperature of LED lights is below 60°C. Excessive junction temperature will lead to a series of problems such as light decay and reduced lifespan, making the LED street lamps The application is subject to insurmountable restrictions
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[0013] Such as figure 1 As shown, this kind of ultra-high-power LED street lamp composite heat pipe cooling device includes LED lamp beads 1, heat pipe radiator 2, and forced air cooling structure.
[0014] The LED lamp bead 1 is composed of a fixed plate 11, a heat sink plate 12 attached to the fixed plate and a transparent light distribution cover 13, and the LED light beads located in the light distribution cover are attached to the heat sink plate.
[0015] The heat pipe radiator 2 is a heat pipe with radiating fins on its surface. In use, one end of the heat pipe is high and the other end is low, in an inclined state. Connect the lamps, and the upper end is connected to the light pole, which acts as a diagonal rod; on the other hand, the heat pipe radiator is inclined to facilitate heat dissipation. The LED lamp beads 1 and the heat pipe radiator 2 are separated, and there is a heat-conducting silica gel between them, and they are connected by fasteners, so that the heat...
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An ultra-high power LED street lamp combined type heat pipe heat dissipation device relates to the illumination street lamp field, and mainly solves the problem of ultra-high power LED street lamp heat dissipating; The heat dissipation device comprises an LED lamp bead and a heat pipe radiator, the LED lamp bead comprises a heat sink plate which is connected with the heat pipe radiator, the heat sink plate is connected with a fixing panel, a transparent light distribution cover is connected below the fixing panel, the heat dissipating device is characterized in that periphery of the fixing panel is provided with an air inlet and an air outlet of air cooling heat dissipation of the light distribution cover. On one hand, heat generated on the heat sink plate is conducted out through the heat pipe radiator; on the other hand, heat generated by the lamp bead in the transparent light distribution cover is discharged by forced air cooling; so that LED junction temperature of the ultra-high power LED street lamp with more than 50w can be controlled within 60 DEG C, the service life of LED is increased by 20%, luminous attenuation of the LED light bead can be basically precluded, and lighting effect can be given maximum play to by the LED.
Description
technical field [0001] The invention relates to the field of lighting street lamps, in particular to a composite heat pipe cooling device for ultra-high-power LED street lamps. Background technique [0002] LED street lamps have become the first choice for energy-saving street lamps due to their unique advantages of long life, energy saving and environmental protection, and high brightness. Therefore, all countries in the world regard the development and application of LED street lamps as a key project of energy conservation and environmental protection in their country, and include them in the national budget. [0003] It is generally considered that a single LED street lamp above 1W is a high-power street lamp, a single LED street lamp above 5W is a super-high-power LED street lamp, and some super-high-power LED street lamps can reach 200W. One of the biggest obstacles to the application of LED street lamps is the problem of high LED junction temperature, which has been l...
Claims
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Login to View More IPC IPC(8): F21V29/00F21V29/02H01L23/427F21W131/103F21Y101/02F21V29/508F21V29/71
Inventor 渠志鹏洪晓狮
Owner 渠志鹏