CN201265809Y - LED tunnel illumination device - Google Patents

Abstract

This utility model relates to an LED tunnel lighting lamp suitable for highway tunnel lighting, which includes a metal shell, two end caps and a glass panel movably sealed to the front port of the metal shell, as well as a reflector and a circuit board with several LED light sources disposed inside the metal shell. In particular, the outer surface of the metal shell is provided with several sheet-like heat sinks, which has the advantages of simple structure and good heat dissipation performance.

Description

LED Tunnel Lighting

technical field

The utility model relates to a lighting fixture, in particular to an LED tunnel lighting lamp suitable for road tunnel lighting.

Background technique

At present, high-pressure sodium lamps, straight tube fluorescent lamps, and electrodeless fluorescent lamps are usually used as lighting sources for highway tunnel lighting. However, the high-pressure sodium lamp light source has poor color rendering and long start-up time; the straight tube fluorescent light source has low light efficiency and short service life. Although the electrodeless fluorescent lamp overcomes the defect of short life, due to the large volume of the high-power electrodeless lamp tube, the light on the back of the lamp tube cannot be reflected by the reflector to the effective illumination surface, and the light efficiency of the lamp is low. At the same time, its high-frequency electromagnetic radiation is relatively large, and the place of use is limited.

Using LED as the lighting source of road tunnel lights has the advantages of energy saving, high light efficiency and long life. In the tunnel lighting lamp of the prior art, the circuit board with several LED light sources is connected to the inner bottom surface of the ordinary metal shell, and the outer back of the metal shell is flat, and the heat generated by the LED light source is passed through the metal shell. External transmission and distribution. However, due to the small outer surface of the metal casing, its heat dissipation performance is not ideal enough.

Utility model content

The utility model aims at the problem that the outer surface of the shell is small and the heat dissipation effect is not ideal, and provides an LED tunnel lighting lamp with a good heat dissipation performance of the shell.

The technical solution of the utility model is:

An LED tunnel lighting lamp, comprising a metal shell, two end caps, a glass panel movably sealed on the front port of the metal shell, a reflector inside the metal shell and a circuit board with several LED light sources, It is characterized in that: the outer surface of the metal shell is provided with several sheet-like cooling fins.

Several sheet-like cooling fins on the outer surface of the metal shell can be integrally molded with the metal shell. This structure is favorable for rapid heat dissipation.

The front and back of the outer surface of the metal shell can be long sheet-shaped heat sinks, and the two sides of the back are short sheet-shaped heat sinks. The structure is favorable for ventilation and heat dissipation, and has a beautiful appearance.

Since the utility model is provided with a plurality of sheet-like cooling fins on the outer surface of the metal shell, the outer surface area of the metal shell is increased and the heat dissipation effect is improved. Therefore, the utility model has the advantages of simple structure and better heat dissipation performance.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the utility model.

Figure 2 is a schematic diagram of the appearance of the utility model.

Detailed ways

In Figure 1 and Figure 2, 1-heat sink, 2-reflector, 3-LED light source circuit board, 4-metal shell, 6-heat sink, 6-glass panel, 7-end cover.

As shown in Fig. 1 and Fig. 2, a metal casing 4, two end covers 7 and a glass panel 6 movably sealed on the front port of the metal casing 4, as well as a reflector 2 arranged in the metal casing 4 and a The circuit board 3 of several LED light sources, the outer surface of the metal shell is provided with several sheet heat sinks 1 and 5 .

Several sheet-like cooling fins on the outer surface of the metal shell can be integrally molded with the metal shell. This structure is favorable for rapid heat dissipation.

The front and back of the outer surface of the metal shell can be long sheet-shaped heat sinks 1 , and the two sides of the back are short sheet-shaped heat sinks 5 . The structure is favorable for ventilation and heat dissipation, and has a beautiful appearance.

The reflector 2 can reflect the LED light to the road surface to form stronger uniform illumination. The two end covers are movably connected to the left and right ends of the metal casing to facilitate production and installation. In application, an additional connecting bracket can be installed on the front and back of the outer surface of the metal shell on the top of the sheet-like loose board for installation and application.

In the work of the utility model, a large amount of heat energy generated by all LEDs can be radiated outward through the sheet radiator of the lamp shell, and the light emitted by the LEDs is reflected by the reflector and then irradiates the road surface. It has the advantages of simple structure and good heat dissipation performance. .

Claims (3)

1. A LED tunnel lighting lamp, comprising a metal shell, two end caps and a glass panel movably sealed on the front port of the metal shell, and a reflector and a circuit provided with several LED light sources in the metal shell The plate is characterized in that: the outer surface of the metal shell is provided with a plurality of sheet-like cooling fins. 2. The LED tunnel lighting lamp according to claim 1, characterized in that: the plurality of fins on the outer surface of the metal shell are integrally molded with the metal shell. 3. An LED tunnel lighting lamp according to claim 1 or 2, characterized in that: the front and back of the outer surface of the metal shell are long sheet-shaped heat sinks, and both sides of the back are short sheet-shaped heat sinks.

Images