CN105020636B - A low-level lighting fixture for a tunnel - Google Patents

Abstract

The present invention relates to a kind of tunnel low position lighting light fixture, apart from ground (1.0 1.5) m position on tunnel wall, reflector includes 2 parabola cambered surfaces and 1 free cambered surface, free cambered surface is connected between 2 parabola cambered surfaces, the shape of 2 parabola cambered surfaces is different, the length of 2 parabola cambered surfaces is all higher than the length of free cambered surface, it is more than the parabola cambered surface close to lamp body top close to the length of the parabola cambered surface of lamp body bottom, lamp source and the angle of reflector back flat board are 64 ° 66 °.Relatively light band that the light that lamp source is sent is formed after being reflected through reflector and compared with dark area, the relatively dark area that illuminator is produced in tunnel side walls overlaps, illumination after overlapping with it is basically identical compared with light band illumination, the low level Uniform Illumination to tunnel road surface is realized, national regulation requirement is met.Meanwhile, lighting energy consumption is significantly reduced, glare problem is solved.

Description

A low-level lighting fixture for a tunnel

technical field

The invention relates to a tunnel low-level lighting fixture, which belongs to the technical field of lighting devices.

Background technique

At present, most of the lighting fixtures used in tunnels are ceiling lamps and pendant lights, and the installation positions are relatively high. No low-level lighting fixtures have been used in tunnels yet. On the one hand, the existing tunnel lighting lamps have low lighting efficiency, high energy consumption, and difficult repair and maintenance; on the other hand, due to the high installation position, such lamps are likely to cause glare to drivers and affect the safety of tunnel vehicles.

There is a low pole lighting reflector light distribution device in the existing market, the lamp body is connected with the fixed bracket through the connecting bracket, the power box is installed at the rear, and the tempered glass panel is at the front; the end cover of the lamp is installed in the lamp body, and the lamp body The upper part of the LED light source is installed on the aluminum substrate. The light from the LED light source is directed to the reflector inside the lamp body, and reflected to the tempered glass panel through the reflector cup. A waterproof sealing strip is fixed between the tempered glass panel and the end cover of the lamp. , the reflective cup is composed of multiple curved surfaces, and the direction, shape and radian of the curved surfaces are different, but the patent has the following defects: After actual testing, the light distribution effect of the reflective cup has not reached the light distribution described in the patent. The effect of uniform reflection to the road surface, but the place farther away from the lamp has less light energy, and the place closer to the lamp has more light energy.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a tunnel low-position lighting fixture.

Technical scheme of the present invention is:

A tunnel low-level lighting fixture, the lighting fixture is installed on the tunnel wall at a distance of (1.0-1.5) m from the ground, including a lamp body, an angle-adjustable fixing bracket, a power supply box, a light source, a reflector, and a glass panel. The lamp body is arranged on the tunnel wall through the adjustable angle fixing bracket, the power supply box is arranged at the rear of the lamp body, the reflector cup is arranged in the lamp body, and the light source is arranged in the The upper part of the lamp body, the glass panel is arranged on the front part of the lamp body, the light generated by the light source shoots to the reflector cup, and is reflected onto the glass panel by the reflector cup, the reflector cup Including two parabolic arc surfaces and one free arc surface, the free arc surface is connected between the two parabolic arc surfaces, the shapes of the two parabolic arc surfaces are different, and the lengths of the two parabolic arc surfaces are both greater than the free arc surface Among the two parabolic arc surfaces, the length of the parabolic arc surface near the lower part of the lamp body is greater than that near the upper part of the lamp body, and the included angle between the light source and the back plate of the reflector is 64°-66° .

The advantage of the design here is that the installation height of the lamp is (1.0-1.5) m, and the low-level lighting method is adopted, which improves the light energy utilization rate, reduces the maintenance cost, and solves the glare problem of the lamp at the same time; the light source The included angle with the back plate of the reflective cup is 64°-66°. Within this angle range, the light generated by the light source hits the reflective cup, and after reflection by the reflective cup, two light bands with different light and shade are just formed, including The brighter light band and the darker light band, and the illuminance of the darker light band is about 1/2 of the illuminance of the brighter light band, the brighter light band and the darker light band are both 1/3 of the road width, and the brighter light band is closer to the wall , the darker light band is far away from the wall, and the darker light bands produced by the lighting fixtures on the walls on both sides of the tunnel overlap together, and the illuminance after overlapping is basically the same as the illuminance of the brighter light band. Lighting Design Rules (JTGTD702-01-2014) "Requirements for tunnel pavement lighting effects. At the same time, the light distribution method of the above-mentioned reflector makes full use of all the light energy emitted by the light source, reducing the lighting energy consumption. According to on-the-spot calculations, in tunnel lighting, in order to achieve the lighting effect specified by the national standard, using the above-mentioned lamps can save energy by more than 50% than using high-pressure sodium lamps; saving more than 30% than using LED ceiling lamps. Moreover, the angle between the outgoing direction of the light and the vertical direction after light distribution by the reflector is less than 90°, and with the installation height of 1.0-1.5m, it completely solves the glare problem caused by the light directly entering the driver's eyes and improves the tunnel traffic. safety.

Preferably, according to the present invention, the included angle between the light source and the back plate of the reflective cup is 65°.

Preferably according to the present invention, the surface of the reflective cup is provided with a composite coating of an aluminum film and a multilayer dielectric film.

The advantage of the design here is that the reflectivity is increased to more than 95%, which improves the utilization rate of light energy and reduces the energy consumption of lighting. The difference in reflectivity caused by different angles solves the problem of edge yellow spots that are prone to occur due to the different reflectivity of yellow light and blue light in the light distribution of lighting fixtures.

Preferably according to the present invention, the lamp body is a one-time molded all-aluminum lamp body, and a heat sink is provided at the rear of the lamp body.

The advantage of the design here is that the lamp body is made of aluminum material to increase heat dissipation, and a one-time molding process is used to increase the sealing of the lamp and prolong the life of the lamp.

Preferably, according to the present invention, the light source is an LED light source, and the LED light source includes several 1W LED white light chips arranged at equal intervals.

The advantage of the design here is that since the lamp adopts the overall reflective cup light distribution, the change of the number of LED light sources will not affect the light distribution effect, so the number of LED light sources can be freely adjusted according to the power requirements.

Preferably, according to the present invention, the glass panel is a toughened glass panel, the toughened glass panel is coated with an anti-reflection film, and the connection between the toughened glass panel and the lamp body is provided with a sealing and waterproof adhesive tape.

The advantage of the design here is that the tempered glass panel is coated with an anti-reflection film, and the transmittance is increased to over 96%.

Preferably according to the present invention, the power supply box is powered by 220V, and the power is 12w.

Preferably, according to the present invention, the angle-adjustable fixing bracket includes a connecting rod and a fixing seat, the connecting rod is hinged to the fixing seat, and the fixing seat is connected to the lamp body.

The beneficial effects of the present invention are:

1. Through the design of the reflector cup, the present invention realizes the light and shade complementary strip-shaped light distribution, and finally achieves a uniform low-level tunnel lighting effect, improves the light energy utilization rate, and significantly reduces lighting energy consumption.

2. The invention reduces the installation height of lighting fixtures, more light is directly projected to the road surface, and the lighting efficiency is improved. At the same time, it is no longer necessary to install scaffolding and other climbing devices for maintenance, which reduces the difficulty and cost of lamp maintenance and maintenance. In addition, The installation height of the lamp described in the present invention is less than the height of the driver's eyes, and by controlling the projection direction of the light, the angle between it and the vertical line on the ground is less than 90°, which completely eliminates the problem that the light of the lamp directly irradiates the driver's eyes, and solves the problem of the lighting lamp. glare problem;

3. The reflectance of the reflector cup of the present invention is increased to over 95%, and at the same time, the reflectance of light of different wavelengths and different incident angles is guaranteed to be basically consistent, and the problem of edge macula that easily occurs in light distribution of lighting fixtures is solved.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Among them, 1. Lamp body, 2. Connecting rod, 3. Power supply box, 4. Light source, 5. Reflector cup, 6. Glass panel, 7. Fixing seat, 8. Sealing and waterproof rubber strip, 9. Flat panel.

Fig. 2 is a schematic structural view of the reflector cup of the present invention;

Wherein, a is a parabolic arc near the upper part of the lamp body, b is a free arc, and c is a parabolic arc near the lower part of the lamp body.

detailed description

The present invention will be further limited below in conjunction with the accompanying drawings and embodiments, but not limited thereto.

Example 1

A tunnel low-level lighting fixture, which is installed on the tunnel wall at a distance of (1.0-1.5) m from the ground, including a lamp body 1, an angle-adjustable fixing bracket, a power supply box 3, a light source 4, a reflector cup 5, Glass panel 6, the lamp body 1 is arranged on the tunnel wall through the adjustable angle fixing bracket, the power supply box 3 is arranged at the rear of the lamp body 1, and the reflector 5 is arranged on the lamp body 1, the light source 4 is arranged on the upper part of the lamp body 1, the glass panel 6 is arranged on the front part of the lamp body 1, the light generated by the light source 4 is directed to the reflector cup 5, And reflected on the glass panel 6 through the reflective cup 5, the reflective cup 4 includes 2 parabolic arc surfaces and 1 free arc surface b, the free arc surface b is connected between the 2 parabolic arc surfaces, The shapes of the two parabolic arc surfaces are different, and the lengths of the two parabolic arc surfaces are both greater than the length of the free arc surface b. Among the two parabolic arc surfaces, the length of the parabolic arc surface c near the lower part of the lamp body is greater than that near the upper part of the lamp body The parabolic arc a, the angle between the light source 4 and the back plate 9 of the reflector 5 is 65°.

The formula of the parabolic arc surface a close to the upper part of the lamp body is y=0.03x ² +0.45, The formula of the parabolic arc surface c near the lower part of the lamp body is

The advantage of the design here is that the installation height of the lamp is (1.0-1.5) m, and the low-level lighting method is adopted, which improves the light energy utilization rate, reduces the maintenance cost, and solves the glare problem of the lamp at the same time; the light source The included angle between 4 and the back plate 9 of the reflective cup 5 is 65°. Within this angle range, the light generated by the light source 4 shoots towards the reflective cup 5, and after reflection by the reflective cup 5, two lights with different light and shade are just formed. The illuminance of the darker light band is about 1/2 of the illuminance of the brighter light band, the brighter light band and the darker light band are both 1/3 of the road width, and the brighter light band The distance from the wall is close, and the darker light band is far from the wall. The darker light bands produced by the lighting fixtures on the walls on both sides of the tunnel overlap together. The illuminance after overlapping is basically the same as the illuminance of the brighter band. "Design Rules for Highway Tunnel Lighting (JTGTD702-01-2014)" requires the lighting effect of tunnel road surface. At the same time, the light distribution method of the reflector 5 makes full use of all the light energy emitted by the light source 4 and reduces the lighting energy consumption. According to on-the-spot calculations, in tunnel lighting, in order to achieve the lighting effect specified by the national standard, using the above-mentioned lamps can save energy by more than 50% than using high-pressure sodium lamps; saving more than 30% than using LED ceiling lamps. Moreover, after the light distribution by the reflector 5, the angle between the outgoing direction of the light and the vertical direction is less than 90°, and the installation height of (1.0-1.5) m completely solves the glare problem caused by the light directly entering the driver's eyes, and improves the performance of the driver. tunnel traffic safety.

Example 2

According to the tunnel low-level lighting fixture described in Embodiment 1, the difference is that the angle between the light source 4 and the back plate 9 of the reflector 5 is 64°.

Example 3

According to the tunnel low-level lighting fixture described in Embodiment 1, the difference is that the included angle between the light source and the back plate 9 of the reflector 5 is 66°.

Example 4

According to the tunnel low-level lighting fixture described in any one of embodiments 1-3, the difference is that the surface of the reflector 5 is provided with a composite coating of an aluminum film and a multilayer dielectric film.

The advantage of the design here is that the reflectivity is increased to more than 95%, which improves the utilization rate of light energy and reduces the energy consumption of lighting. The difference in reflectivity caused by different angles solves the problem of edge yellow spots that are prone to occur due to the different reflectivity of yellow light and blue light in the light distribution of lighting fixtures.

Example 5

According to the tunnel low-level lighting fixture described in Embodiment 4, the difference is that the lamp body 1 is a one-time molded all-aluminum lamp body, and a heat sink is provided at the rear of the lamp body.

The advantage of the design here is that the lamp body 1 is made of aluminum material to increase heat dissipation, and a one-time molding process is adopted to increase the sealing performance of the lamp and prolong the life of the lamp.

Example 6

According to the tunnel low-level lighting fixture described in Embodiment 4, the difference is that the light source 4 is an LED light source, and the LED light source includes several 1W LED white light chips arranged at equal intervals.

The advantage of the design here is that since the lamp adopts the overall reflective cup light distribution, the change of the number of LED light sources will not affect the light distribution effect, so the number of LED light sources can be freely adjusted according to the power requirements.

Example 7

According to the tunnel low-position lighting fixture described in Embodiment 4, the difference is that the glass panel 6 is a toughened glass panel, and the toughened glass panel is coated with an antireflection film, and the toughened glass panel and the lamp body 1 is provided with a sealing waterproof adhesive strip 8 at the junction.

The advantage of the design here is that the tempered glass panel is coated with an anti-reflection film, and the transmittance is increased to over 96%.

Example 8

According to the tunnel low-level lighting fixture described in Embodiment 4, the difference is that the power supply box 3 is powered by 220V, and the power is 12w.

Example 9

According to a tunnel low-position lighting fixture described in Embodiment 4, the difference is that the angle-adjustable fixing bracket includes a connecting rod 2 and a fixing seat 7, and the connecting rod 2 is hinged to the fixing seat 7, and the fixing seat 7. Connect the lamp body 1.

Claims (8)

1. A tunnel low-position lighting fixture, said lighting fixture is installed on the tunnel wall at a distance of 1.0-1.5m from the ground, including a lamp body, an angle-adjustable fixed bracket, a power supply box, a light source, a reflector, and a glass panel. The lamp body is arranged on the tunnel wall through the adjustable angle fixing bracket, the power supply box is arranged at the rear of the lamp body, the reflector cup is arranged in the lamp body, and the light source is arranged in the The upper part of the lamp body, the glass panel is arranged on the front part of the lamp body, the light generated by the light source shoots to the reflector cup, and is reflected onto the glass panel by the reflector cup, it is characterized in that, The reflector includes 2 parabolic arc surfaces and 1 free arc surface, the free arc surface is connected between the 2 parabolic arc surfaces, the shapes of the 2 parabolic arc surfaces are different, and the lengths of the 2 parabolic arc surfaces are both greater than the The length of the free arc surface is described. Among the two parabolic arc surfaces, the length of the parabolic arc surface near the lower part of the lamp body is greater than the parabolic arc surface near the upper part of the lamp body. The angle between the light source and the back plate of the reflector is 64° °-66°; the formula of the parabolic arc surface a close to the upper part of the lamp body is The formula of the parabolic arc surface c near the lower part of the lamp body is 2 . The tunnel low-level lighting fixture according to claim 1 , wherein the angle between the light source and the back plate of the reflector cup is 65°. 3. A tunnel low-level lighting fixture according to claim 1, characterized in that, the surface of the reflector cup is provided with a composite coating of aluminum film and multilayer dielectric film. 4. A tunnel low-level lighting fixture according to claim 1, wherein the lamp body is a one-time molded all-aluminum lamp body, and a heat sink is provided at the rear of the lamp body. 5 . The tunnel low-level lighting fixture according to claim 1 , wherein the light source is an LED light source, and the LED light source includes several 1W LED white light chips arranged at equal intervals. 6. A tunnel low-level lighting fixture according to claim 1, wherein the glass panel is a toughened glass panel, and the toughened glass panel is coated with an anti-reflection film, and the toughened glass panel and the lamp The junction of the body is provided with a sealing waterproof strip. 7. A tunnel low-level lighting fixture according to claim 1, wherein the power supply box is powered by 220V, and the power is 12w. 8. A tunnel low-position lighting fixture according to any one of claims 1-7, wherein the angle-adjustable fixing bracket includes a connecting rod and a fixing seat, the connecting rod is hinged to the fixing seat, and the The fixing seat is connected with the lamp body.