Embedded type runway illumination device

Abstract

The invention discloses an embedded type runway illumination device, belonging to the field of illumination devices. The embedded type runway illumination device comprises a shell assembly. The shell assembly comprises a surface cover and a rear shell, wherein the surface cover and the rear shell are fixedly connected with each other and form a holding chamber. The embedded type runway illumination device additionally comprises an LED assembly and a radiating construction member, wherein the LED assembly is fixedly connected on the radiating construction member. The LED assembly and the radiating construction member are arranged in the holding chamber and are fixed on the shell assembly. A first flanged part is arranged on the surface cover in a protruding way. A second flanged part is arranged on the rear shell in a protruding way. A radiating flange is arranged on the external side of the radiating member in a protruding way and is clamped between the first flanged part and the second flanged part. Through using the LED assembly as a light source and arranging the radiating construction member, the invention has the advantages that the LED assembly can work under proper temperature, the maintenance cost of the product is reduced and the service life of the product is prolonged.

Description

technical field [0001] The invention belongs to the field of lighting devices, in particular to an embedded runway lighting device. Background technique [0002] At present, embedded runway lighting devices mainly use halogen tungsten lamps as light sources, and embedded runway lighting devices using halogen tungsten lamps as light sources have the following disadvantages: [0003] 1. The service life is short. The service life of the halogen tungsten lamp is only about 1000 hours, which increases the frequency of light source replacement and maintenance workload, and the use cost is high. [0004] 2. It is easily damaged. The lamp cup of the halogen tungsten lamp is easily damaged. When the aircraft runs over the surface of the embedded navigation aid lighting device, the lamp body will be impacted and vibrated. The lamp cup of the halogen tungsten lamp is easily damaged by the shock, and the reliability of the product is poor. , which increases the chance of damage to the...

AI Technical Summary

Problems solved by technology

[0003] 1. The service life is short. The service life of the tungsten halogen lamp is only about 1000 hours, which increases the frequency of light source replacement and maintenance workload, and the cost of use is high.

[0004] 2. It is easy to be damaged. The lamp cup of the tungsten-halogen lamp is easily damaged. When the plane runs over the surface of the embedded navigation lighting device, the lamp body will be impacted and vibrated. , increasing the chance of damage to navigational lighting devices

[0005] 3. The efficiency is low. Under the condition of achieving the same light intensity, the power required by the halogen tungsten light source is higher than that required by the LED

For example, to meet the light intensity requirement of 20,000cd, the power of the tungsten halogen lamp is 210W, while the power of the led can reach the light intensity of 20,000cd with only 120W. The power of the tungsten halogen lamp is half higher than that of the led. The energy consumed is much higher than that of led, which obviously shows that halogen tungsten lamps cannot reflect the concept of energy saving and environmental protection

[0006] At present, the use of LEDs as the light source of the taxiway centerline lighting device has also made some progress in research, but most of the products are still in the laboratory stage. The main reason is that the heat dissipation problem cannot be solved, resulting in high product temperature and poor reliability.

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