Large-power LED embedded type aid-to-navigation lamp heat sink
A heat sink and embedded technology, applied in lighting and heating equipment, cooling/heating devices of lighting devices, lighting devices, etc., can solve the problems of unable to meet the heat dissipation requirements of high-power LEDs, small space, natural convection, etc., to achieve effective Conducive to the loss of heat, prolong the service life and reduce the effect of thermal resistance
Inactive Publication Date: 2013-08-28
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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Problems solved by technology
However, some navigation aid lamps need high-power LEDs to meet the visual requirements of the airport. Since the surface cover of the embedded lamp with a fixed radiator is only 8 inches in diameter, the overall lamp is airtight and the space is small, so effective natural convection cannot be carried out. The original LED Embedded navigation lighting radiators cannot meet the heat dissipation requirements of high-power LEDs
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[0023] Example: such as Figure 1-3 As shown, a high-power LED embedded navigation light radiator includes a concave radiator main body 1, and the bottom of the concave surface of the radiator main body 1 is provided with a plurality of through holes 4, a plurality of threaded holes 2 5 and a plurality of positioning holes 6. The through hole 4 is convenient for the cable to pass through the bottom. The threaded hole 2 5 and the positioning hole 6 are used for fixing and positioning the aluminum substrate respectively. Threaded hole one 2.
[0024] The inner concave part of the radiator main body 1 has a rectangular structure, and there is an isolation plate 3 in the middle of the rectangular structure to isolate it into two parts, which are respectively used to fix an aluminum substrate. The exterior of the radiator main body 1 has a circular structure.
[0025] There is one through hole 4 at the bottom of the two parts separated by the isolation plate 3 in the radiator main...
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The invention discloses a large-power LED embedded type aid-to-navigation lamp heat sink which comprises an inward concave heat sink body, wherein the bottom of the inward concave surface of the heat sink body is provided with a plurality of through holes, a plurality of second thread holes and a plurality of locating holes, cables conveniently penetrate out of the bottom by means of the through holes, the second thread holes and the locating holes are respectively used for fixation and location of an aluminum substrate, the outer surface of the heat sink body is provided with a plurality of fins, and the edge of the upper surface is provided with a plurality of first thread holes. The large-power LED embedded type aid-to-navigation lamp heat sink has the advantages that the connection portion of the aluminum substrate and the heat sink is simplified, an aluminum substrate base is simplified on the heat sink, the fins are arranged on the outer surface of the heat sink, the heat dissipation area is enlarged, heat dissipation is benefited, the structure is simple, and the heat dissipation effect is good. In a small sealed space in an LED embedded type lamp, the large-power LED embedded type aid-to-navigation lamp heat sink is used for heat dissipation, the LED temperature can be controlled at about 60 DEG C, and the service life of the LED aid-to-navigation lamp is prolonged.
Description
technical field [0001] The invention relates to a radiator, in particular to a radiator for high-power LED embedded navigation lights. Background technique [0002] One of the advantages of LED is that it has a high photoelectric conversion efficiency. However, due to current technical limitations, the photoelectric conversion efficiency of LEDs at this stage is relatively poor. Only about 15% to 20% of electrical energy is converted into light output, and the rest is converted into heat energy. This heat will cause the temperature of the LED to rise. When the temperature rises, there will be problems such as a decrease in operating voltage, a decrease in light intensity, and a longer wavelength of light, and the service life of LED lamps will also drop sharply. Therefore, solving the heat dissipation problem is a very important task for the two-way white LED runway centerline lights of the airport. [0003] At present, the radiators of LED embedded navigation aids are mai...
Claims
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IPC IPC(8): F21V29/00F21Y101/02F21W111/06F21V29/76F21V29/89
Inventor 黄荣顺邓胜吉罗晓李拓
Owner THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA