Track light sign for track area

Abstract

The utility model provides a track light board in a track area, and relates to the technical field of light boards. The track light board in a track area comprises a floodlight (1), a light absorbing plate (3), a light board frame (4), and a back plate (5), wherein the floodlight (1) is arranged at the top of the light board frame (4), and projects light into the light board frame (4) through the linear wall washing principle to form a rectangular light-emitting surface (2); the light absorbing plate (3) is arranged at the bottom of the light board frame (4); the floodlight (1), the light absorbing plate (3) and the light board frame (4) are all installed on the back plate (5). The utility model can solve the problem of the visual impact of the light source glare on the driver, and solve the problem of the unsightly environment caused by the light scattering outside the picture.

Description

Technical Field

[0001] The utility model relates to the technical field of light boards, and in particular to a track light board in a track area. Background Art

[0002] For many years, advertising light boxes in rail transit track areas have been mainly box-type structures. Although the light source technology has been upgraded from traditional fluorescent lamps to LED light sources in recent years, there has been no fundamental change in the overall structure of the light box and the display method of advertising images. Passengers pay less and less attention to the content of traditional small-format advertising light boxes, resulting in the commercial effect and appeal of advertising in track areas becoming weaker and weaker.

[0003] In order to increase passengers' attention to the advertising screens in the rail area while waiting for the train, the existing small-format advertising light boxes are obviously no longer suitable. Therefore, various rail companies and advertising operators have adopted the method of increasing the display format of the light boxes to increase passengers' attention and the time they stay in sight. Large-format box-type advertising light boxes have significantly improved the display effect, but because the weight of the single unit increases dramatically, the construction difficulty and safety risks increase, and there are also many pain points in the later maintenance issues.

[0004] Rail billboards came into being under the above circumstances. They not only increase the display area of ​​advertisements and significantly improve passengers' attention, but also significantly reduce the size and weight. They are an important development direction for future rail transit advertising display media.

[0005] At present, the application of rail brand is still in the exploratory stage, and there are several problems:

[0006] 1. The average brightness of the surface is not enough. Because the track sign is relatively large, most of the current product solutions are implemented through traditional line lights or floodlights. The lighting distribution is unreasonable, resulting in a relatively low effective brightness on the surface, which is difficult to reach more than 2000 Lux. At the same time, because the brightness of the platform itself is relatively high, after the track sign is viewed through the screen door, the visual sensitivity of the picture is significantly reduced;

[0007] 2. The brightness uniformity is very poor. Since the width of the upper and lower formats is about 3 meters, and it is limited by the safe distance of the lamps in the track area, and most of the current product designs are based on brightness uniformity, without considering that the reflective surface should be designed according to brightness uniformity. Different from the working principle of the transmissive light box, because it is a reflective interface, the actual brightness uniformity of most sign surfaces is below 0.6, so there are obvious light and dark areas on the screen, and the visual sensory comfort experience is very poor. The following figure is a visual comparison of illumination uniformity and brightness uniformity;

[0008] 3. Serious glare. From the application cases of several subway companies that have been tested and put into use, whether it is the up and down lighting method or the side lighting method, due to the inaccurate light control of the lamp itself, there is an obvious glare problem when looking from the direction of the subway driving path, which will affect the visual comfort and operating safety of the locomotive driver;

[0009] 4. The pipelines in the track area are highlighted, affecting the appearance. Due to the inaccurate light control of the current track sign, the area around the track sign is illuminated, causing all the hidden pipelines in the track area to be highlighted, seriously affecting the visual appearance;

[0010] The above problems result in unsatisfactory display effects of railway signs. The technical direction of future railway signs will be towards large format, high uniformity, low glare, no surrounding stray light, simple and reliable structure, and more convenient maintenance. Utility Model Content

[0011] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a track light sign in a track area, which has uniform brightness and is comfortable to watch. It can accurately control the light output range, solve the problem of the visual impact of light source glare on the driver, and solve the problem of unsightly environment caused by light scattering outside the picture.

[0012] The purpose of the utility model is achieved through the following technical solutions:

[0013] A track light sign in a track area, comprising a floodlight, a light absorbing plate, a light sign frame, and a back plate, wherein:

[0014] The floodlight is arranged on the top of the frame of the light board, and projects light into the frame of the light board through the linear wall washing principle to form a rectangular luminous surface; the projection principle of the floodlight is as follows Figure 3 As shown; the light absorbing plate is arranged at the bottom of the light board frame; the floodlight, the light absorbing plate and the light board frame are all installed on the back plate.

[0015] Optionally or preferably, the floodlight includes multiple LED light sources, a dimming constant current power supply, a multi-curved light distribution lens and a metal casing; the multiple LED light sources are powered by the dimming constant current power supply, are installed in the metal casing, and the multi-curved light distribution lens guides the light to the side.

[0016] Optionally or preferably, the power of a single LED light source is 3-5W; the total power of the floodlight is 50W-100W, and the luminous efficiency is ≥100Lm / W; the multi-curved light distribution lens is made of optical PC; and the metal housing is made of die-cast aluminum.

[0017] Optionally or preferably, the light board frame is a rectangular frame; the number of the floodlights is four; the four floodlights are evenly spaced and installed on the top of the light board frame.

[0018] Optionally or preferably, the floodlight adopts COB light engine technology to directly integrate multiple LED chips on a substrate and package them into a high-power density LED light source module.

[0019] Optionally or preferably, the floodlight comprises a plurality of LED chips; each of the LED chips is coated with fluorescent powder.

[0020] Based on the above technical solution, the following technical effects can be produced:

[0021] The utility model can accurately control the light emission range of the light, avoid the influence of glare on the vision of the driver, and improve the viewing comfort and aesthetics of the light sign. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the floodlight in the utility model;

[0025] Figure 3 This is a projection principle diagram of the floodlight of the utility model;

[0026] In the figure: 1-floodlight, 2-rectangular light-emitting surface, 3-light-absorbing plate, 4-light board frame, 5-back plate. DETAILED DESCRIPTION

[0027] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] This embodiment provides a track light sign in a track area, such as Figure 1As shown, it includes a floodlight 1, a light absorbing plate 3, a light board frame 4, and a back plate 5, wherein:

[0031] The floodlight 1 is arranged at the top of the light board frame 4, and projects light into the light board frame 4 through the linear wall washing principle to form a rectangular light-emitting surface 2; the light absorbing plate 3 is arranged at the bottom of the light board frame 4 to solve the problem of light overflow; the floodlight 1, the light absorbing plate 3 and the light board frame 4 are all installed on the back panel 5.

[0032] In this embodiment, Figure 2 As shown, the floodlight 1 includes multiple LED light sources, a dimming constant current power supply, a multi-curved light distribution lens and a metal shell; the multiple LED light sources are powered by the dimming constant current power supply, installed in the metal shell, and the multi-curved light distribution lens guides the light to the side.

[0033] In this embodiment, the power of a single LED light source is 3 to 5W; the total power of the floodlight 1 is 50W to 100W, the luminous efficiency is ≥100Lm / W, and the color temperature is about 6000K; the multi-curved light distribution lens is made of optical PC to improve aging resistance; the metal shell is made of die-cast aluminum to ensure reliable heat dissipation.

[0034] In this embodiment, the light board frame 4 is a rectangular frame; the number of the floodlights 1 is four; and the four floodlights 1 are evenly installed on the top of the light board frame 4.

[0035] In this embodiment, the floodlight 1 adopts COB light engine technology to directly integrate multiple LED chips on a substrate and package them into a high-power density LED light source module.

[0036] In this embodiment, the floodlight 1 includes a plurality of LED chips; each of the LED chips is coated with fluorescent powder.

[0037] This embodiment has the following advantages:

[0038] (1) The surface illumination of the track sign provided in this embodiment reaches 2000 Lux, and the color rendering index is above Ra80, so the display effect of the picture is fully displayed;

[0039] (2) The surface brightness uniformity of this embodiment reaches above 0.8, which improves viewing comfort;

[0040] (3) This embodiment uses a floodlight to precisely control the light emission range, thereby solving the problem of the glare of the light source affecting the driver's vision; and uses a light-absorbing plate to solve the problem of the light scattering outside the screen, which causes an unsightly environment;

[0041] (4) The floodlight in this embodiment uses COB light engine technology and phosphor technology to achieve the required high luminous flux and a rectangular luminous surface with a certain brightness gradient.

[0042] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A track light sign in a track area, characterized by: It comprises a floodlight (1), a light absorbing plate (3), a light board frame (4), and a back plate (5), wherein: The floodlight (1) is arranged at the top of the light board frame (4), and projects light into the light board frame (4) through the linear wall washing principle to form a rectangular light-emitting surface (2); the light absorbing plate (3) is arranged at the bottom of the light board frame (4); the floodlight (1), the light absorbing plate (3) and the light board frame (4) are all mounted on a back plate (5).

2. A track light sign in a track area according to claim 1, characterized in that: The floodlight (1) comprises a plurality of LED light sources, a dimming constant current power supply, a multi-curved light distribution lens and a metal casing; the plurality of LED light sources are powered by the dimming constant current power supply, are installed upright in the metal casing, and are guided to emit light to the side by the multi-curved light distribution lens.

3. A track light sign in a track area according to claim 2, characterized in that: The power of a single LED light source is 3-5W; the total power of the floodlight (1) is 50W-100W, and the light efficiency is ≥100Lm / W; the multi-curved light distribution lens is made of optical PC; and the metal shell is made of die-cast aluminum.

4. A track light sign in a track area according to claim 2, characterized in that: The light board frame (4) is a rectangular frame; the number of the projection lamps (1) is four; the four projection lamps (1) are evenly spaced and installed on the top of the light board frame (4).

5. The track light sign in the track area according to claim 1, characterized in that: The floodlight (1) adopts COB light engine technology to directly integrate multiple LED chips on a substrate and package them into a high-power density LED light source module.

6. The track light sign in the track area according to claim 1, characterized in that: The floodlight (1) comprises a plurality of LED chips; each of the LED chips is coated with fluorescent powder.

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