Ambient lighting for rail transit

Abstract

This utility model discloses an ambient light for rail transit, comprising a housing, a light diffusion substrate, a light source assembly, and a light-shielding layer. The housing has a mounting groove, in which the light diffusion substrate is embedded. The back side of the light diffusion substrate has a receiving slot extending along its length. The light source assembly is disposed inside the receiving slot and includes a flexible PCB board and LED particles arrayed thereon. The light-shielding layer covers the light source assembly, so that the top side of the light diffusion substrate serves as the light-emitting surface. The sidewall of the housing has a clamping structure for detachable connection. Through the above methods, this utility model has a compact structure, is easy to install, and offers rich colors. The light is concentrated and emitted from the side, achieving the purpose of a linear light source. It can effectively adapt to the complex environment of rail transit, providing a stable and comfortable lighting atmosphere inside the carriage.

Description

Technical Field

[0001] This utility model relates to the field of rail transit lighting technology, and in particular to an ambient light for rail transit. Background Technology

[0002] Currently, ambient lights on the market are mainly divided into two categories: ambient lights made of flexible silicone material and ambient lights made of polycarbonate material.

[0003] Flexible silicone ambient lights are bendable and easy to install, making them suitable for irregularly shaped structures. However, they have the following drawbacks: insufficient product quality stability; low mechanical strength, making it difficult to fix the ultra-thin light-emitting surface of about 2mm in place, which is prone to deformation and detachment; poor light efficiency consistency and insufficient batch stability, which affects the overall aesthetics of the vehicle and makes it difficult to use them on a large scale in high-end scenarios such as high-speed trains.

[0004] Polycarbonate ambient lights have high structural strength, are impact-resistant and high-temperature resistant, making them suitable for harsh working conditions. However, the manufacturing process is complex, suppliers are scarce, and procurement costs are high.

[0005] In summary, ambient lights currently on the market generally suffer from defects such as fragile light source structures and limited color options.

[0006] Therefore, there is an urgent need to develop a new type of ambient light that is structurally stable, easy to install, has excellent light efficiency, and is cost-effective, in order to make up for the shortcomings of existing products and meet the market demand for high-quality ambient lights. Utility Model Content

[0007] The main technical problem solved by this utility model is to provide an ambient light for rail transit that is compact in structure, easy to install, and rich in color. The light is concentrated and emitted from the side to achieve the purpose of a linear light source, which can effectively adapt to the complex environment of rail transit and provide a stable and comfortable lighting atmosphere for the carriage.

[0008] To solve the above-mentioned technical problems, the present invention provides an ambient light for rail transit, comprising:

[0009] A housing having a mounting groove;

[0010] A light diffusion substrate is embedded in a mounting groove, and its back side is provided with a receiving groove extending along the length direction.

[0011] The light source assembly, located inside the receiving slot, includes a flexible PCB board and LED particles arrayed thereon;

[0012] A light-shielding layer covering the light source assembly;

[0013] The housing sidewall is provided with a clamping structure to achieve a detachable connection.

[0014] In a preferred embodiment of this utility model, the light diffusion substrate is a polycarbonate plate with a thickness of 1.8~4mm. The polycarbonate plate has good strength and good light diffusion performance.

[0015] In a preferred embodiment of this utility model, the thickness of the polycarbonate sheet is 2mm.

[0016] In a preferred embodiment of this utility model, the LED particles are uniformly distributed on a flexible PCB board by welding, and the thickness of the flexible PCB board is 0.2~0.5mm.

[0017] In a preferred embodiment of this utility model, the thickness of the flexible PCB board is 0.3 mm.

[0018] In a preferred embodiment of this utility model, the LED particles include red, green and blue chips, which can be configured according to actual needs.

[0019] In a preferred embodiment of this invention, the light-shielding layer is made of light-shielding paper or a high light-blocking film.

[0020] In a preferred embodiment of this utility model, the light-shielding layer covers the front, back and bottom sides of the light-diffusing substrate, so that the top side forms a continuous light-emitting surface, thereby achieving the purpose of a linear light source.

[0021] In a preferred embodiment of this utility model, the clamping structure includes a tightening screw on the housing to achieve the locking installation of the ambient light on the rail vehicle, and the installation method is firm and reliable.

[0022] The beneficial effects of this utility model are: compact structure, convenient installation, rich colors, and can effectively adapt to the complex environment of rail transit, providing a stable and comfortable lighting atmosphere for the carriage; it achieves linear light emission with a 2mm light-emitting surface, the light is concentrated, uniform and soft, with good light emission effect, which improves product quality and grade and enhances competitiveness; the processing method is flexible, which effectively reduces costs and achieves cost reduction and efficiency improvement. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0024] Figure 1 This is a schematic diagram of a preferred embodiment of the housing of the ambient light for rail transit according to this utility model;

[0025] Figure 2 This is a schematic diagram of a preferred embodiment of the light diffusion substrate with a light source component for an ambient light for rail transit according to the present invention.

[0026] Figure 3 This is a schematic diagram of a preferred embodiment of the ambient light for rail transit according to this utility model;

[0027] The components in the attached diagram are labeled as follows:

[0028] 1. Housing; 11. Mounting slot; 2. Light diffusion substrate; 21. Receiving slot; 3. Light source assembly; 4. Light shielding layer; 5. Tightening screw; 6. Light emitting surface. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] This utility model relates to a preferred embodiment of an ambient light for rail transit.

[0032] Please see Figures 1 to 3 The ambient light for rail transit includes a housing 1, a light diffusion substrate 2, a light source assembly 3, a light shielding layer 4, and a pressing structure. Through the cooperation of these structures, the ambient light achieves stable light output and convenient installation.

[0033] Specifically, firstly, there is the housing 1, which serves as the basic supporting structure for the ambient light. The top of the housing 1 is recessed inward to form a mounting groove 11 extending along the length direction. The size of the mounting groove 11 is adapted to the light diffusion substrate 2. At the same time, the side wall of the housing 1 is provided with a clamping structure.

[0034] In this embodiment, the clamping structure uses a top screw 5. By tightening the screw, the ambient light can be firmly locked to the installation position of the rail vehicle without the need for an additional bracket, thus improving the convenience of installation and maintenance.

[0035] Secondly, there is a light diffusion substrate 2, which is embedded in the mounting groove 11 of the housing 1, and has a receiving groove 21 extending along the length direction on the back side, which is used to accommodate the light source assembly 3.

[0036] The receiving groove 21 can be machined on the back of the polycarbonate sheet. For mass production, it can also be processed by opening an extrusion profile mold to ensure that the groove size is accurate and highly consistent.

[0037] Furthermore, the light diffusion substrate 2 is made of polycarbonate material, which has good strength, excellent light transmittance, impact resistance and temperature resistance, and can meet the long-term use requirements in the rail transit environment. At the same time, its fire retardant performance can meet the relevant requirements of EN45545-2, HL2 and above.

[0038] Furthermore, the thickness of the polycarbonate substrate is set to 1.8~4mm. When the thickness is 2mm, the best light diffusion effect can be achieved while ensuring structural strength, making the output light softer and more uniform.

[0039] Then there is the light source assembly 3, which includes a flexible PCB board and LED particles arrayed thereon.

[0040] The thickness of the flexible PCB board is 0.2~0.5mm, preferably 0.3mm. This thickness ensures good flexibility to adapt to the curvature requirements of different installation scenarios, while also providing sufficient structural strength to support the LED chips.

[0041] Furthermore, LED particles are evenly distributed on a flexible PCB board through welding to form a continuous light-emitting array. The LED particles include red, green, and blue chips, and the ratio of the three colors can be adjusted by the control system to achieve rich color changes and meet the needs of creating different atmospheres in rail transit carriages.

[0042] Furthermore, there is a light-shielding layer 4, which covers the light source component 3. The light-shielding layer 4 is made of light-shielding paper or a high light-blocking film to limit the propagation of light and prevent light leakage from affecting the effect of the ambient light.

[0043] In this embodiment, the light-shielding layer 4 covers the front (non-light-emitting surface), back and bottom sides of the light-diffusing substrate, leaving only the top side of the light-diffusing substrate 2 as a continuous light-emitting surface 6, so that the light can be concentrated and emitted from the top side to form a clear and uniform linear light-emitting band.

[0044] The beneficial effects of this utility model of ambient lighting for rail transit are:

[0045] It features a compact structure, convenient installation, and rich colors, and can effectively adapt to the complex environment of rail transit, providing a stable and comfortable lighting atmosphere inside the carriage;

[0046] It achieves linear light emission with a 2mm luminous surface, resulting in concentrated, uniform, and soft light, which improves the accuracy and aesthetics of lighting and meets the high-quality requirements for atmosphere creation in rail transit carriages.

[0047] The flexible processing methods effectively reduce costs and achieve "cost reduction and efficiency improvement" for the products;

[0048] It has a good luminous effect, which improves the quality and grade of the product and enhances its competitiveness.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An ambient light for rail transit, characterized in that, include: A housing having a mounting groove; A light diffusion substrate is embedded in a mounting groove, and its back side is provided with a receiving groove extending along the length direction. The light source assembly, located inside the receiving slot, includes a flexible PCB board and LED particles arrayed thereon; A light-shielding layer covering the light source assembly; The housing sidewall is provided with a clamping structure to achieve a detachable connection.

2. The ambient light for rail transit according to claim 1, characterized in that, The light diffusion substrate is made of polycarbonate sheet with a thickness of 1.8~4mm.

3. The ambient light for rail transit according to claim 2, characterized in that, The polycarbonate sheet has a thickness of 2 mm.

4. The ambient light for rail transit according to claim 1, characterized in that, The LED particles are uniformly distributed on a flexible PCB board by welding, and the thickness of the flexible PCB board is 0.2~0.5mm.

5. The ambient light for rail transit according to claim 4, characterized in that, The thickness of the flexible PCB board is 0.3 mm.

6. The ambient light for rail transit according to claim 4, characterized in that, The LED particles include red, green, and blue chips.

7. The ambient light for rail transit according to claim 1, characterized in that, The light-shielding layer is made of light-shielding paper or a high light-blocking film.

8. The ambient light for rail transit according to claim 1, characterized in that, The light-shielding layer covers the front, back, and bottom sides of the light-diffusing substrate, so that the top side forms a continuous light-emitting surface.

9. The ambient light for rail transit according to claim 1, characterized in that, The clamping structure includes a clamping screw on the housing to achieve the locking installation of the ambient light on the rail vehicle.

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