Rail transit vehicle-mounted low-glare lamp

Abstract

The rail transit vehicle-mounted low-glare lamp comprises a heat dissipation shell, a lamp panel, a lampshade, a light reflecting grating and a power source, and the light reflecting grating is arranged on the heat dissipation shell and located below the lampshade; the reflective grating comprises edge grating strips and middle grating strips, the middle grating strips are perpendicular to the lamp panel and arranged in a # shape, and the edge grating strips are arranged in a splayed shape. According to the lamp, the light reflecting grating is additionally arranged, the middle grating strips of the light reflecting grating are perpendicular to the lamp panel and are arranged in the shape like the Chinese character'jing ', the middle grating strips basically do not block emission of light rays, the influence on the light emitting efficiency is small, the light rays emitted by the LED lamp beads on the lamp panel can be reflected by the middle grating strips, the light rays are more dispersed, and the light emitting efficiency is improved. The illumination uniformity and the anti-dazzle effect are improved by changing light distribution; the edge grating strips are arranged in a splayed mode, the illumination range can be controlled, the brightness in the illumination range can be increased, and therefore the anti-dazzle purpose can be achieved while the illumination effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of train lighting, and in particular to a low-glare lamp mounted on a rail transit vehicle. Background Art

[0002] Traditional train lighting fixtures are relatively weak in anti-glare. The structure of common rail transit strip lamps can refer to the Chinese patent application with patent publication number CN110566905A, entitled "A Strip Lampshade and Strip Lamp". The lamp includes a heat dissipation shell, a lamp panel and a lampshade. The lampshade generally adopts atomizing plates, frosted plates, diffuser plates and other light-dissipating plates, which can play a certain anti-glare role. Some also make various anti-glare structures such as ribbed strips and wavy shapes on the lampshade, but the anti-glare improvement effect is relatively limited. Utility Model Content

[0003] In order to solve the technical problem that existing rail transit lamps have weak anti-glare properties, the utility model provides a rail transit vehicle-mounted low-glare lamp.

[0004] The technical solution provided in this application is as follows: a low-glare lamp for rail transit vehicles, including a heat dissipation shell, a lamp panel, a lampshade, a reflective grille and a power supply, the lamp panel is fixed to the inner top wall of the heat dissipation shell, the lampshade is arranged at the lower end of the heat dissipation shell, and the reflective grille is arranged on the heat dissipation shell and below the lampshade; the reflective grille includes edge grille bars and middle grille bars, the middle grille bars are perpendicular to the lamp panel and arranged in a criss-cross shape, and the edge grille bars are arranged in an outward-facing "X" shape.

[0005] By adopting the above technical solution: the rail transit vehicle-mounted lamp of this application is added with a reflective grille on the basis of the existing technology. The middle grille bar of the reflective grille is perpendicular to the light board and is arranged in a criss-cross shape. The middle grille bar basically does not block the emission of light, so it has little effect on the light output efficiency. The light emitted by the LED lamp beads on the light board will be reflected by the middle grille bar, making the light more dispersed, and improving the uniformity of lighting and anti-glare effect by changing the light distribution; the edge grille bars are arranged in an outward-facing "X" shape, which can control the lighting range and increase the brightness within the lighting range. Therefore, this application can meet the lighting effect while also achieving the purpose of anti-glare.

[0006] Preferably, the edge grille bars on both sides are inclined outward at angles that are smaller on one side and larger on the other side.

[0007] By adopting the above technical solution: when the lamps are arranged in two rows on the top of the rail vehicle, the edge grille bars with a small inclination angle are closer to the two sides of the car, so that the illumination range is more suitable for the lighting requirements of the car.

[0008] Preferably, the reflective grid includes a substrate and an electrochemical aluminum reflective film attached to the substrate.

[0009] By adopting the above technical solutions: the electrochemical aluminum reflective film has high reflection efficiency, high long-term stability and long service life.

[0010] Preferably, the heat dissipation shell is made of aluminum extrusion material, including a first base plate and two first side plates, and the inner sides of the lower ends of the two first side plates are provided with a card slot; the lampshade includes a second base plate and two second side plates, and the top end of the second side plate is provided with a card strip, and the card strip is elastically inserted into the card slot, thereby fixing the lampshade on the heat dissipation shell.

[0011] By adopting the above technical solution: utilizing the characteristic that the plastic material of the lampshade has a certain elastic deformation ability, the lampshade is clamped on the heat dissipation shell after being squeezed and deformed, which makes disassembly and assembly convenient and maintenance convenient.

[0012] Preferably, the two second side panels are inclined inwardly to form a dovetail shape with the second bottom panel.

[0013] By adopting the above technical solution: compared with vertical side panels, the card slots and card strips are easier to align, which is more conducive to quick installation.

[0014] Preferably, one of the second side plates further has a first extending portion extending upward at the clamping strip, for guiding the clamping strip to clamp into the clamping slot.

[0015] By adopting the above technical solution: when the right side clip is assembled first, the first extension portion has a blocking and guiding function, preventing the left side second side panel from running outside the first side panel and affecting assembly efficiency.

[0016] Preferably, a second extending portion extends downward from the card slot of the first side plate that matches the other second side plate, for guiding the card strip to be inserted into the card slot.

[0017] By adopting the above technical solution: when the left card strip is assembled first, the second extension portion can guide the right card strip to move inward so as to smoothly enter the right card slot; no matter which assembly method is adopted, the convenience of assembly can be guaranteed.

[0018] Preferably, two end surfaces of the heat dissipation housing are further provided with sealing plates for sealing the space between the heat dissipation housing and the lampshade.

[0019] By adopting the above technical solutions: mosquitoes and dust are prevented from entering the space.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The lamp in this application has a reflective grille, which has a minimal impact on light output efficiency. It disperses light through reflection, improving lighting uniformity and anti-glare effects by changing the light distribution. The edge grille bars are arranged in an outward-facing "X" shape, which can control the lighting range and increase the brightness within the lighting range. Therefore, this application can achieve the purpose of anti-glare while meeting the lighting effect.

[0022] 2. One of the second side panels has a first extension extending upward from the clipping strip, and the first side panel that matches the other second side panel also has a second extension extending downward from the clipping slot to guide the clipping strip into the clipping slot. Regardless of which assembly method is used, ease of assembly is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional diagram of the lamp described in the embodiment of the present application;

[0024] Figure 2 is a three-dimensional diagram of the lamp according to the embodiment of the present application from another angle;

[0025] Figure 3 is a schematic diagram of a half-section structure of the lamp according to an embodiment of the present application;

[0026] Figure 4 is a schematic diagram of the exploded structure of the lamp described in the embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of an assembly action of installing the lampshade of the lamp according to an embodiment of the present application to the heat dissipation housing;

[0028] Figure 6 This is another schematic diagram of the assembly action of installing the lampshade of the lamp described in the embodiment of the present application to the heat dissipation housing.

[0029] Explanation of the accompanying drawings: 1. Heat dissipation housing; 11. First bottom plate; 12. First side plate; 13. Card slot; 14. Second extension portion; 2. Lamp board; 3. Lamp cover; 31. Second bottom plate; 32. Second side plate; 33. Card strip; 34. First extension portion; 4. Reflective grille; 41. Edge grille bar; 42. Middle grille bar; 5. Sealing plate. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1 to 6 This application is described in further detail.

[0031] Reference Figures 1 to 4The embodiment of the present application discloses a low-glare lamp for rail transit vehicles, including a heat dissipation housing 1, a lamp board 2, a lampshade 3, a reflective grille 4 and a power supply (not shown). The lamp board 2 is fixed to the inner top wall of the heat dissipation housing 1, the lampshade 3 is arranged at the lower end of the heat dissipation housing 1, and the reflective grille 4 is arranged on the heat dissipation housing 1 and below the lampshade 3; the reflective grille 4 includes edge grille bars 41 and middle grille bars 42, the middle grille bars 42 are perpendicular to the lamp board 2 and are arranged in a well shape, and the edge grille bars 41 are arranged in an outward eight shape.

[0032] In this embodiment, the reflective grille 4 includes a substrate and an electrochemical aluminum reflective film attached to the substrate. The electrochemical aluminum reflective film has high reflection efficiency, high long-term stability and long service life.

[0033] Reference Figure 3 In this embodiment, the edge grille bars 41 on both sides are tilted outward at a smaller angle on one side and a larger angle on the other side. When the lamps are arranged in two rows on the top of the rail vehicle, the edge grille bars 41 with a smaller tilt angle are closer to the two sides of the car, and the edge grille bars 41 with a larger tilt angle are closer to the middle of the car. In this way, the illumination range is more adapted to the lighting requirements of the car.

[0034] Reference Figure 5 and Figure 6 The heat dissipation housing 1 is made of extruded aluminum and includes a first base plate 11 and two first side plates 12. Each of the lower inner sides of the two first side plates 12 has a retaining groove 13. The lampshade 3 includes a second base plate 31 and two second side plates 32. The tops of the second side plates 32 are provided with retaining strips 33 that elastically snap into the retaining grooves 13, thereby securing the lampshade 3 to the heat dissipation housing 1. Leveraging the elastic deformation properties of the plastic material of the lampshade 3, it is deformed and then snapped onto the heat dissipation housing 1, making assembly and disassembly easy and convenient for maintenance.

[0035] In this embodiment, the two second side panels 32 are inclined inwardly to form a dovetail shape with the second bottom panel 31. Compared with vertical side panels, the slots 13 and the strips 33 are easier to align, which is more conducive to quick installation.

[0036] Reference Figure 5 and Figure 6One of the second side panels 32 has a first extension 34 extending upward from the clip 33 to guide the clip 33 into the slot 13. The first side panel 12 that matches the other second side panel 32 also has a second extension 14 extending downward from the slot 13 to guide the clip 33 into the slot 13. When the right clip 33 is assembled first, the first extension 34 serves as a barrier and guide, preventing the left second side panel 32 from moving outside the first side panel 12 and affecting assembly efficiency. When the left clip 33 is assembled first, the second extension 14 guides the right clip 33 inward to smoothly enter the right slot 13. Regardless of the assembly method, ease of assembly is guaranteed.

[0037] Reference Figure 2 and Figure 4 The two end surfaces of the heat dissipation housing 1 are further provided with sealing plates 5 for sealing the space between the heat dissipation housing 1 and the lampshade 3 to prevent mosquitoes and dust from entering the space.

[0038] Based on the existing technology, the rail transit vehicle-mounted lamp of the present application has added a reflective grille 4. The middle grille bar 42 of the reflective grille 4 is perpendicular to the lamp board 2 and is arranged in a criss-cross shape. The middle grille bar 42 basically does not block the emission of light, so it has little effect on the light output efficiency. The light emitted by the LED lamp beads on the lamp board 2 will be reflected by the middle grille bar 42, making the light more dispersed, and improving the uniformity of lighting and anti-glare effect by changing the light distribution; the edge grille bars 41 are arranged in an outward-facing "X" shape, which can control the lighting range and increase the brightness within the lighting range. Therefore, the present application can meet the lighting effect while also achieving the purpose of anti-glare.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A low-glare lamp for rail transit vehicles, characterized in that: The invention comprises a heat dissipation housing (1), a lamp panel (2), a lampshade (3), a reflective grille (4) and a power supply, wherein the lamp panel (2) is fixed to the inner top wall of the heat dissipation housing (1), the lampshade (3) is arranged at the lower end of the heat dissipation housing (1), and the reflective grille (4) is arranged on the heat dissipation housing (1) and below the lampshade (3); the reflective grille (4) comprises edge grille bars (41) and middle grille bars (42), wherein the middle grille bars (42) are perpendicular to the lamp panel (2) and arranged in a well-shaped pattern, and the edge grille bars (41) are arranged in an outward-facing "X" pattern.

2. The low-glare lamp for rail transit vehicles according to claim 1, characterized in that: The edge grille bars (41) on both sides are inclined outwards at angles that are smaller on one side and larger on the other.

3. The low-glare lamp for rail transit vehicles according to claim 1, characterized in that: The reflective grid (4) comprises a substrate and an electrochemical aluminum reflective film attached to the substrate.

4. The low-glare lamp for rail transit vehicles according to claim 1, characterized in that: The heat dissipation housing (1) is made of aluminum extrusion material, and comprises a first bottom plate (11) and two first side plates (12), wherein the inner sides of the lower ends of the two first side plates (12) are each provided with a card slot (13); the lampshade (3) comprises a second bottom plate (31) and two second side plates (32), wherein the top ends of the second side plates (32) are provided with a card strip (33), wherein the card strip (33) is elastically snapped into the card slot (13), thereby fixing the lampshade (3) on the heat dissipation housing (1).

5. The low-glare lamp for rail transit vehicles according to claim 4, characterized in that: The two second side plates (32) are inclined inwards and form a dovetail shape with the second bottom plate (31).

6. The low-glare lamp for rail transit vehicles according to claim 5, characterized in that: One of the second side plates (32) further has a first extension portion (34) extending upwards at the clamping strip (33) for guiding the clamping strip (33) to be clamped into the clamping slot (13).

7. The low-glare lamp for rail transit vehicles according to claim 6, characterized in that: A second extension portion (14) extends downward from the slot (13) of the first side plate (12) matched with the other second side plate (32) to guide the clip (33) to clip into the slot (13).

8. The low-glare lamp for rail transit vehicles according to claim 1, characterized in that: The two end surfaces of the heat dissipation housing (1) are further provided with sealing plates (5) for sealing the space between the heat dissipation housing (1) and the lampshade (3).

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