Rail transit dodging lampshade and vehicle-mounted lamp

Abstract

The lampshade comprises a first bottom plate and two first side plates, the inner side of the first bottom plate is a light inlet face, the outer side of the first bottom plate is a light outlet face, the light inlet face is a smooth plane, multiple rows and multiple columns of circular bosses are arranged on the light outlet face, multiple annular grooves are formed in the circular bosses, and the annular grooves and the circular bosses are concentric circles; and the annular groove is a triangular tooth groove. According to the dodging lampshade, the light inlet face is the smooth plane, the multiple rows and columns of circular bosses are arranged on the light outlet face, the multiple concentric annular grooves are formed in the circular bosses, when the annular grooves are triangular tooth grooves, emitted light can be more dispersed, and therefore the excellent dodging effect is achieved.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted lighting technology, and in particular to a rail transit uniform light lampshade and a vehicle-mounted lamp. Background Art

[0002] Traditional train lighting fixtures primarily use LED lamps. Due to their concentrated, glaring light, they require additional lampshades. The structure of common rail transit strip lamps can be found in Chinese patent application CN110566905A, titled "A Strip Lamp Shade and Strip Lamp." The lamps consist of a heat sink housing, a light panel, and a lampshade. The lampshade typically uses a Lambertian light distribution principle, employing diffuse reflection. However, its light uniformity is relatively weak and needs improvement. Utility Model Content

[0003] In order to solve the technical problem of weak light uniformity in existing rail transit lampshades, the utility model provides a rail transit light uniformity lampshade and a vehicle-mounted lamp.

[0004] On the one hand, the technical solution provided by the present application is as follows: a rail transit uniform light lampshade, comprising a first base plate and two first side plates, the inner side of the first base plate is a light incident surface, and the outer side is a light emitting surface, the light incident surface is a smooth plane, and the light emitting surface is provided with multiple rows and columns of circular bosses, and the circular bosses are provided with multiple annular grooves, the annular grooves are concentric circles with the circular bosses, and the annular grooves are triangular tooth grooves.

[0005] By adopting the above technical solution: the light incident surface of the uniform light lampshade of this application adopts a smooth plane, and multiple rows and columns of circular bosses are set on the light output surface, and multiple concentric annular grooves are provided on the circular bosses. When the annular grooves are triangular tooth grooves, the emitted light will be more dispersed, thereby achieving an excellent uniform light effect.

[0006] Preferably, the base-to-height ratio of the triangular tooth groove is greater than or equal to 5. The vertex angle of the triangular tooth groove is greater than or equal to 120°.

[0007] By adopting the above technical solution: According to the experimental data of the applicant, the above data is the preferred range, which can achieve a better uniform light effect.

[0008] Preferably, adjacent circular bosses intersect with each other, and the intersection distance is less than 1 / 4 of the diameter of the circular boss.

[0009] By adopting the above technical solution, if the circular bosses do not intersect, there will be a large area of ​​light output where the annular grooves cannot be arranged, and the light uniformity effect in this area cannot be improved. Because the annular grooves in the intersection area are no longer complete, the light uniformity effect is slightly worse than that in the area with complete annular grooves. Therefore, it is not advisable to excessively expand the intersection area.

[0010] Preferably, the two first side panels are inclined inwardly to form a dovetail shape with the first bottom panel.

[0011] 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.

[0012] On the other hand, the present application also provides the following technical solution: a rail transit vehicle-mounted lamp, comprising the lampshade, heat dissipation shell, lamp board and power supply mentioned above, wherein the lamp board is fixed to the inner top wall of the heat dissipation shell, and the lampshade is arranged at the lower end of the heat dissipation shell.

[0013] By adopting the above technical solution, the light emitted by the lamp using the uniform light lampshade described in this application is more uniform, and the anti-glare effect is also improved.

[0014] Preferably, the heat dissipation shell includes a second bottom plate and two second side plates, and the inner sides of the lower ends of the two second side plates are provided with a card slot; the top end of the first side plate of the lampshade is provided with a card strip, and the card strip elastically fits into the card slot, thereby fixing the lampshade on the heat dissipation shell.

[0015] 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.

[0016] Preferably, one of the first side panels has a first extension portion extending upward from the card strip for guiding the card strip to fit into the card slot; the second side panel matching the other first side panel has a second extension portion extending downward from the card slot for guiding the card strip to fit into the card slot.

[0017] By adopting the above technical solution, when assembling the lampshade, whether the right side clip is assembled first or the left side clip is assembled first, 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 lampshade of this application is provided with an annular groove with triangular teeth, which makes the emitted light more dispersed, thus achieving an excellent uniform light effect;

[0022] 2. The light emitted by the lamp using the uniform light lampshade described in this application is more uniform, and the anti-glare effect is also improved;

[0023] 3. When assembling the lampshade, whether you assemble the right clip first or the left clip first, it can ensure the convenience of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional diagram of the lampshade described in an embodiment of the present application;

[0025] Figure 2 is a three-dimensional diagram of the lampshade according to the embodiment of the present application from another angle;

[0026] Figure 3 is a top view of the lampshade described in an embodiment of the present application;

[0027] Figure 4 is a schematic diagram of the cross-sectional structure of the lampshade described in an embodiment of the present application;

[0028] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 is a three-dimensional diagram of the lamp described in the embodiment of the present application;

[0030] Figure 7 is a three-dimensional diagram of the lamp according to the embodiment of the present application from another angle;

[0031] Figure 8 is a schematic diagram of a half-section structure of the lamp according to an embodiment of the present application;

[0032] Figure 9 is a schematic diagram of the exploded structure of the lamp described in the embodiment of the present application;

[0033] Figure 10 This is a schematic diagram of an assembly operation of installing the lampshade of the lamp according to an embodiment of the present application to the heat dissipation housing;

[0034] Figure 11 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.

[0035] Explanation of the accompanying drawings: 1. Lampshade; 11. First base plate; 111. Light incident surface; 112. Light emitting surface; 113. Circular boss; 114. Annular groove; 12. First side plate; 121. Clip; 122. First extension portion; 2. Heat dissipation housing; 21. Second base plate; 22. Second side plate; 23. Clip groove; 24. Second extension portion; 3. Lamp board; 4. Sealing plate. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 11 This application is described in further detail.

[0037] Reference Figures 1 to 5, Embodiment 1 of the present application discloses a rail transit uniform light lampshade 1, comprising a first base plate 11 and two first side plates 12, wherein the inner side of the first base plate 11 is a light incident surface 111, and the outer side is a light emitting surface 112, the light incident surface 111 is a smooth plane, and the light emitting surface 112 is provided with multiple rows and columns of circular bosses 113, and the circular bosses 113 are provided with multiple annular grooves 114, the annular grooves 114 are concentric circles with the circular bosses 113, and the annular grooves 114 are triangular tooth grooves.

[0038] The light incident surface 111 of the uniform light lampshade 1 of the present application adopts a smooth plane, and multiple rows and columns of circular bosses 113 are set on the light output surface 112, and multiple concentric annular grooves 114 are provided on the circular bosses 113. When the annular grooves 114 are triangular tooth grooves, the emitted light will be more dispersed, thereby achieving an excellent uniform light effect.

[0039] In this embodiment, referring to Figure 5 According to the experimental data of the present applicant, the base-to-height ratio of the triangular tooth groove is greater than or equal to 5; the vertex angle of the triangular tooth groove is greater than or equal to 120°, which can achieve a better uniform light effect.

[0040] In this embodiment, adjacent circular bosses 113 intersect with each other, with the intersecting distance being less than 1 / 4 of the diameter of the circular bosses 113. If the circular bosses 113 do not intersect with each other, a large area of ​​the light-emitting region will be left without the annular grooves 114. This area will not improve the light uniformity, thus adversely affecting the overall light uniformity of the mask. Because the annular grooves 114 in the intersecting region are no longer complete, the light uniformity in the region with intact annular grooves 114 is slightly worse. Therefore, excessively expanding the intersecting region is not recommended.

[0041] Reference Figures 6 to 11 The second embodiment of the present application discloses a rail transit vehicle-mounted lamp, comprising the lampshade 1 described in the above embodiment, as well as a heat dissipation housing 2, a lamp board 3, and a power supply (not shown). The lamp board 3 is fixed to the inner top wall of the heat dissipation housing 2, and the lampshade 1 is disposed at the lower end of the heat dissipation housing 2. A lamp using the uniform light lampshade 1 described in this application produces more uniform light and has improved anti-glare properties.

[0042] Reference Figure 10 and Figure 11 The heat dissipation housing 2 includes a second bottom plate 21 and two second side plates 22. Each of the two second side plates 22 has a slot 23 formed on its inner lower end. A clip 121 is provided at the top of the first side plate 12 of the lampshade 1. The clip 121 elastically snaps into the slot 23, securing the lampshade 1 to the heat dissipation housing 2. Leveraging the elastic deformation properties of the plastic material of the lampshade 1, it is squeezed and deformed to snap onto the heat dissipation housing 2, making assembly and disassembly and maintenance-friendly.

[0043] Reference Figure 4 The two first side panels 12 are inclined inwardly to form a dovetail shape with the first bottom panel 11. Compared with vertical side panels, the slots 23 and the card strips 121 are easier to align, which is more conducive to quick installation.

[0044] Reference Figure 10 and Figure 11 One of the first side panels 12 has a first extension 122 extending upward from the clip 121 to guide the clip 121 into the slot 23. The second side panel 22, which matches the other first side panel 12, has a second extension 24 extending downward from the slot 23 to guide the clip 121 into the slot 23. When the right clip 121 is assembled first, the first extension 122 serves as a barrier and guide, preventing the left first side panel 12 from moving outside the second side panel 22 and affecting assembly efficiency. When the left clip 121 is assembled first, the second extension 24 guides the right clip 121 inward to smoothly enter the right slot 23. Regardless of the assembly method, ease of assembly is guaranteed.

[0045] Reference Figure 9 The two end faces of the heat dissipation shell 2 are also provided with sealing plates 4 for sealing the space between the heat dissipation shell 2 and the lampshade 1 to prevent mosquitoes and dust from entering the space.

[0046] 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 rail transit uniform light lampshade, characterized in that: The invention comprises a first bottom plate (11) and two first side plates (12), wherein the inner side of the first bottom plate (11) is a light incident surface (111), and the outer side is a light emitting surface (112), the light incident surface (111) is a smooth plane, the light emitting surface (112) is provided with multiple rows and columns of circular bosses (113), the circular bosses (113) are provided with multiple annular grooves (114), the annular grooves (114) and the circular bosses (113) are concentric circles, and the annular grooves (114) are triangular tooth grooves.

2. The rail transit uniform light lampshade according to claim 1, characterized in that: The base-to-height ratio of the triangular tooth groove is greater than or equal to 5.

3. The rail transit uniform light lampshade according to claim 2, characterized in that: The vertex angle of the triangular tooth groove is greater than or equal to 120°.

4. The rail transit uniform light lampshade according to claim 1, characterized in that: Adjacent circular bosses (113) intersect with each other, and the intersection distance is less than 1 / 4 of the diameter of the circular bosses (113).

5. The rail transit uniform light lampshade according to claim 1, characterized in that: The two first side plates (12) are inclined inwards and form a dovetail shape with the first bottom plate (11).

6. A rail transit vehicle-mounted lamp, characterized in that: The invention comprises a lampshade (1) according to any one of claims 1 to 5, a heat dissipation housing (2), a lamp board (3) and a power supply, wherein the lamp board (3) is fixed to the inner top wall of the heat dissipation housing (2), and the lampshade (1) is arranged at the lower end of the heat dissipation housing (2).

7. The rail transit vehicle-mounted lamp according to claim 6, characterized in that: The heat dissipation housing (2) comprises a second bottom plate (21) and two second side plates (22), and the inner sides of the lower ends of the two second side plates (22) are each provided with a card slot (23); the top end of the first side plate (12) of the lampshade (1) is provided with a card strip (121), and the card strip (121) is elastically snapped into the card slot (23), thereby fixing the lampshade (1) on the heat dissipation housing (2).

8. The rail transit vehicle-mounted lamp according to claim 7, characterized in that: One of the first side plates (12) further has a first extension portion (122) extending upward from the clamping strip (121) for guiding the clamping strip (121) to be clamped into the clamping slot (23); and a second extension portion (24) extending downward from the clamping slot (23) of the second side plate (22) matched with the other first side plate (12) for guiding the clamping strip (121) to be clamped into the clamping slot (23).

9. The rail transit vehicle-mounted lamp according to claim 6, characterized in that: The two end surfaces of the heat dissipation housing (2) are further provided with sealing plates (4) for sealing the space between the heat dissipation housing (2) and the lampshade (1).

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