Annular top lamp and rail car

Abstract

The utility model discloses an annular ceiling lamp and a rail car. The annular ceiling lamp comprises an annular lamp and a top plate used for being assembled to the rail car. The first lighting source plate is located in the annular lamp and arranged at the top of the annular lamp; the second lighting source plate is located in the annular lamp and arranged at the bottom of the annular lamp. According to the annular lamp, the illumination light source plates are arranged at the top and the bottom in the annular lamp correspondingly, and combination and switching of multiple lighting effects can be achieved; the first illumination light source plate at the top is used for providing basic and uniform illumination to ensure that the brightness of the whole carriage is sufficient and is uniformly distributed; and the second lighting source plate at the bottom is used for decorative lighting, provides local or dynamic lighting effects (such as particle light and horse race lamp effects), and improves the visual experience and aesthetic property of the space. According to the distribution design of the upper and lower positions of the two illumination light source plates, different light source functions can be effectively integrated, the annular ceiling lamp can adapt to various use scenes and requirements, and a more flexible illumination scheme is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, and particularly to an annular ceiling lamp and a rail vehicle. Background Art

[0002] At present, the ceiling lamps in the passenger compartments of traditional rail trains adopt a lighting-only lamp as the auxiliary lighting solution. Specifically, the lamps installed on the roof of the existing rail vehicle include a lamp cover and a single lighting light source board. The lighting light source board is installed in the lamp cover and only serves for lighting, but it cannot adapt to various application scenarios and requirements and cannot provide a more flexible lighting solution.

[0003] Therefore, the existing technology still needs to be improved and developed. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an annular ceiling lamp and a rail vehicle aiming at realizing multi-functional light effects and enhancing diversity in view of the above defects of the existing technology.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0006] An annular ceiling lamp, comprising:

[0007] An annular lamp for assembling to the roof of a rail vehicle;

[0008] A first lighting light source board located inside the annular lamp and arranged at the top of the annular lamp;

[0009] A second lighting light source board located inside the annular lamp and arranged at the bottom of the annular lamp.

[0010] For the annular ceiling lamp, horizontally, the first lighting light source board and the second lighting light source board are offset from each other.

[0011] For the annular ceiling lamp, the projection parts of the first lighting light source board and the second lighting light source board towards the ground overlap partially.

[0012] For the annular ceiling lamp, the first lighting light source board is close to the inner side of the second lighting light source board.

[0013] For the annular ceiling lamp, the annular lamp comprises:

[0014] A lamp cover;

[0015] An annular lamp body arranged above the lamp cover; both the first lighting light source board and the second lighting light source board are located inside the annular lamp body;

[0016] A support plate, located within the annular accommodation space formed by the annular lamp body and detachably connected to the annular lamp body; the support plate and the annular lamp body enclose an accommodation cavity;

[0017] A driving power supply, disposed within the accommodation cavity and electrically connected to the first lighting source board and the second lighting source board respectively.

[0018] The annular ceiling lamp, wherein the annular lamp body includes:

[0019] An outer ring, detachably connected above the lamp shade;

[0020] An inner ring, coaxially arranged with the outer ring and detachably connected above the lamp shade;

[0021] An annular mounting plate, detachably connected to the outer ring and the inner ring respectively; both the outer ring and the inner ring are located between the annular mounting plate and the lamp shade; the first lighting source board is located on the annular mounting plate, and the second lighting source board is located on the lamp shade.

[0022] The annular ceiling lamp, wherein the inner ring includes:

[0023] A first annular flat plate, coaxially arranged with the support plate and detachably connected to the support plate;

[0024] A second annular flat plate, coaxially arranged with the annular mounting plate and detachably connected to the annular mounting plate;

[0025] A first cylinder body, located between the first annular flat plate and the second annular flat plate and connected to the outer circumferential surface of the first annular flat plate and the inner circumferential surface of the second annular flat plate respectively.

[0026] The annular ceiling lamp, wherein the outer ring includes:

[0027] A first annular backing plate, located below the annular mounting plate and detachably connected to the annular mounting plate;

[0028] A second annular backing plate, symmetrically arranged with the first annular backing plate; the second annular backing plate is located above the lamp shade and detachably connected to the lamp shade; the second lighting source board is located between the first annular backing plate and the second annular backing plate and detachably connected to the second annular backing plate;

[0029] A second cylinder body, located between the first annular backing plate and the second annular backing plate and connected to the outer circumferential surface of the first annular backing plate and the outer circumferential surface of the second annular backing plate respectively.

[0030] The annular ceiling lamp, wherein the second lighting source board includes:

[0031] PCB board;

[0032] A plurality of LED particles are arranged on the PCB board.

[0033] An orbital vehicle includes the annular ceiling lamp described in any one of the above.

[0034] Beneficial effects: In this application, a lighting light source board is respectively arranged above and below the annular lamp, and a combination and switching of multiple light effects can be realized. On the one hand, the upper first lighting light source board is used to provide basic and uniform lighting to ensure sufficient and evenly distributed brightness throughout the carriage; on the other hand, the lower second lighting light source board is used for decorative lighting to provide local or dynamic light effects (such as particle light, running light effect, etc.), enhancing the visual experience and aesthetics of the space. This distribution design of the upper and lower positions of the two lighting light source boards can effectively integrate different light source functions, enabling the annular ceiling lamp to adapt to a variety of usage scenarios and requirements and providing a more flexible lighting solution. Description of the Drawings

[0035] Figure 1 is a schematic internal structure diagram of the annular ceiling lamp in the present utility model;

[0036] Figure 2 is a schematic structural diagram of the annular lamp body in the present utility model;

[0037] Figure 3 is a schematic distribution structure diagram of the first lighting light source board and the second lighting light source board in the present utility model. Detailed Embodiments

[0038] The following will describe the embodiments of the present utility model with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be understood that the preferred embodiments are only for illustrating the present utility model and not for limiting the protection scope of the present utility model.

[0039] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0040] The present utility model provides an annular ceiling lamp, asFigure 1 As shown, the annular ceiling lamp includes an annular lamp 1, a first lighting source board 2, and a second lighting source board 3; the annular lamp 1 is used to be assembled to the top plate of the rail vehicle; the first lighting source board 2 is located inside the annular lamp 1 and is arranged at the top of the annular lamp 1; the second lighting source board 3 is located inside the annular lamp 1 and is arranged at the bottom of the annular lamp 1.

[0041] Specifically, the first lighting source board 2 and the second lighting source board 3 are distributed on the upper and lower sides inside the annular lamp 1; among them, the first lighting source board 2 is located at the top of the annular lamp 1, close to the top plate; the second lighting source board 3 is located at the bottom of the annular lamp 1, away from the top plate.

[0042] In this application, by respectively arranging lighting source boards above and below inside the annular lamp 1, combinations and switching of multiple light effects can be achieved. On the one hand, the upper first lighting source board 2 is used to provide basic and uniform lighting to ensure sufficient and evenly distributed brightness throughout the carriage; on the other hand, the lower second lighting source board 3 is used for decorative lighting to provide local or dynamic light effects (such as particle light, running light effect, etc.) to enhance the visual experience and aesthetics of the space. This distribution design of the upper and lower positions of the two lighting source boards can effectively integrate different light source functions, enabling the annular ceiling lamp to adapt to a variety of usage scenarios and requirements and providing a more flexible lighting solution.

[0043] By respectively arranging the two lighting source boards above and below inside the annular lamp 1, the diffusion and direction of light can be better controlled: the upper first lighting source board 2 mainly scatters light evenly into the entire space through reflection and diffusion, while the lower second lighting source board 3 for decoration is closer to the passengers' line of sight, which is beneficial for concentrating on displaying decorative light effects. Such an arrangement can avoid direct glare, improve the comfort of passengers, and at the same time ensure that the light directions of different light sources meet the design requirements.

[0044] Meanwhile, the two lighting source plates above and below are separated in position, which can avoid mutual interference between light effects. Basic lighting and decorative light effects often have different spectral and brightness requirements, and different light paths. Through physical upper and lower separation, the lighting light effect and the decorative light effect can be made non-interfering with each other; the first lighting source plate 2 mainly provides uniform white light or warm light for basic lighting, while the second lighting source plate 3 is mainly used for decoration to provide more dynamic and diverse decorative light effects. Such a design enables the two light sources to present completely different effects in the same ceiling lamp, enhancing the visual hierarchy and overall aesthetics, and allowing different light effect switching in different scenarios. For example, when the train is static or at rest, the first lighting source plate 2 can be turned on to use a soft lighting mode; when the train enters the station or in special occasions, it can be switched to the decoration mode, turn on the second lighting source plate 3, and use blue light or flashing effects to increase the dynamic feeling and atmosphere of the carriage.

[0045] In one embodiment of the present application, as Figure 1 , Figure 2 and Figure 3 shown, along the horizontal direction, the first lighting source plate 2 and the second lighting source plate 3 are mutually misaligned.

[0046] In this embodiment, through horizontal misalignment installation, the light paths of the first lighting source plate 2 and the second lighting source plate 3 are relatively separated, which can effectively prevent the light rays of the two light effects from interfering with each other. The first lighting source plate 2 is responsible for providing uniform and soft basic light for lighting, while the second lighting source plate 3 is responsible for providing visually attractive light effects (such as blue light, granular effect, running light effect, etc.); through misalignment installation, it is ensured that the two light sources can work independently when in use, avoiding mixing into an unsatisfactory light effect.

[0047] The first lighting source plate 2 generally requires a larger light-emitting area to provide uniform light coverage, while the second lighting source plate 3 needs to be displayed in a more prominent position in order to produce a more dynamic light effect; through horizontal misalignment installation, the first lighting source plate 2 can be placed in a position suitable for uniform lighting, and the second lighting source plate 3 can be placed in a position more conducive to visual display, thereby optimizing the light effect performance of the two light sources; misalignment installation can make the ceiling lamp produce different light effects in different areas, increasing the visual hierarchy of the ceiling lamp. The first lighting source plate 2 illuminates the entire area with a uniform light effect, creating a basic light environment; while the second lighting source plate 3 enhances the decoration and atmosphere of the space through specific light effects. This horizontal misalignment design makes the light effect of the ceiling lamp more variable and hierarchical, making the carriage space more interesting and modern.

[0048] In an embodiment of the present embodiment, the projection of the first lighting light source board 2 onto the ground overlaps with that of the second lighting light source board 3.

[0049] Specifically, if the first lighting light source board 2 and the second lighting light source board 3 are completely separated, it may lead to an obvious demarcation line between the two lighting effects, thus affecting the visual aesthetic. Therefore, in this embodiment, the first lighting light source board 2 and the second lighting light source board 3 are arranged with a horizontal offset from each other, but the projection of the first lighting light source board 2 onto the ground overlaps with that of the second lighting light source board 3, which can help achieve a natural transition and fusion between the lighting effects. For example, the first lighting light source board 2 provides soft and uniform basic light, while the second lighting light source board 3 provides local or specific lighting effects (such as blue light, running light effect). Through partial overlap, the decorative lighting effect can be naturally integrated into the basic lighting effect without generating a rigid demarcation or obvious light spots, making the overall lighting effect more coordinated and unified.

[0050] At the same time, the overlapping of the projection of the first lighting light source board 2 onto the ground with that of the second lighting light source board 3 can also help distribute the light more evenly, reducing shadows or dark areas; in the overlapping area, the light from the two light sources can complement each other, making the overall lighting effect of the ring-shaped ceiling lamp more uniform and soft, thereby improving the visual comfort of passengers.

[0051] In an embodiment of the present embodiment, the first lighting light source board 2 is close to the inner side of the second lighting light source board 3.

[0052] Specifically, the light projected by the first lighting light source board 2 on the inner side is mainly concentrated in the central area of the carriage for lighting; while the light projected by the second lighting light source board 3 on the outer side is mainly in the peripheral area, forming a decorative effect. Such an arrangement can enable the two lighting effects to operate independently without interference, while avoiding the blurring and mixing of the lighting effects.

[0053] The second lighting light source board 3 is close to the outer side, and this design is to enhance the visibility of the decorative effect. The lighting effects of the second lighting light source board 3 (such as blue light, granular effect, running light effect, etc.) are mainly for visual attraction and aesthetics. Installing it on the outer side in an area closer to the passengers' line of sight can make these decorative lighting effects more prominent and eye-catching, enhancing the technological sense and dynamic sense of the carriage.

[0054] At the same time, through this horizontal offset and inner-outer zoning design of the first lighting light source board 2 and the second lighting light source board 3, the visual hierarchy of the ring-shaped ceiling lamp is enhanced; the first lighting light source board 2 on the inner side provides uniform basic light, creating an overall bright environment; while the second lighting light source board 3 on the outer side provides lighting effects with a sense of movement and change, constituting a richer visual hierarchy and making the entire carriage look more three-dimensional and modern.

[0055] In one embodiment of the present application, along the horizontal direction, the width of the second lighting source board 3 is smaller than the width of the first lighting source board 2.

[0056] Specifically, the main purpose of the first lighting source board 2 is to provide uniform basic lighting. Therefore, by designing the first lighting source board 2 to have a larger width, a wider area can be covered, ensuring that the light is evenly distributed throughout the carriage or lighting area, avoiding the appearance of dark areas or light spots, providing a soft and uniform lighting effect, and ensuring that passengers have sufficient light and a comfortable visual experience in the carriage.

[0057] The main function of the second lighting source board 3 is to provide specific visual effects, such as color changes, particle light effects, marquee light effects, etc.; therefore, the second lighting source board 3 does not need to cover a wide area, but rather focuses more on the presentation of visual effects. For example, a narrow light band is used to highlight a specific lighting pattern or dynamic effect. The second lighting source board 3 with a narrower width can more intensively highlight the decorative effect, making it more distinctive and attractive in the overall design of the ring-shaped ceiling lamp.

[0058] At the same time, the narrower second lighting source board 3 can make the light effect more concentrated and more visually impactful. For example, blue light, marquee lights or flashing effects will be more eye-catching when distributed in a narrow area than in a wide area; this design makes the brightness and effect of the decorative light source more concentrated, enhancing the contrast of the light effect and making it more visually attractive and technological in the overall lighting environment.

[0059] As Figure 1 and Figure 2 shown, the ring-shaped lamp 1 includes a lamp shade 11, a ring-shaped lamp body 12, a support plate 13 and a driving power supply 14 (as Figure 1 and Figure 3 shown); the ring-shaped lamp body 12 is arranged above the lamp shade 11; both the first lighting source board 2 and the second lighting source board 3 are located inside the ring-shaped lamp body 12; the support plate 13 is located inside the annular accommodation space formed by the ring-shaped lamp body 12 and is detachably connected to the ring-shaped lamp body 12; the support plate 13 and the ring-shaped lamp body 12 enclose a accommodation cavity 100 (as Figure 1 shown); the driving power supply 14 is arranged inside the accommodation cavity 100 and is electrically connected to both the first lighting source board 2 and the second lighting source board 3 respectively.

[0060] Specifically, the first lighting source board 2 and the second lighting source board 3 are connected in parallel, so that the driving power supply 14 can independently control the first lighting source board 2 and the second lighting source board 3 respectively, enabling the ring-shaped ceiling lamp to turn on and off the first lighting source board 2 and the second lighting source board 3 according to actual needs.

[0061] Generally, the space height on the ceiling of the passenger compartment is limited. Since important components such as air ducts are provided above the ceiling of the rail vehicle, if a middle ceiling lamp needs to be installed at the middle ceiling, the height space of the middle ceiling lamp will surely be limited. In the present application, the ring-shaped lamp 1 adopts a ring-shaped structure and forms the ring-shaped accommodation cavity 100, so that the driving power supply 14 can be accommodated in the accommodation cavity 100, thereby realizing the staggered arrangement of the ring-shaped lamp 1 and the driving power supply 14, and reducing the overall height space of the ring-shaped ceiling lamp.

[0062] As Figure 2 shown, the ring-shaped lamp body 12 includes an outer ring 121, an inner ring 122 and a ring-shaped mounting plate 123; the outer ring 121 is detachably connected above the lamp shade 11; the inner ring 122 is coaxially arranged with the outer ring 121 and is detachably connected above the lamp shade 11; the ring-shaped mounting plate 123 is respectively detachably connected to the outer ring 121 and the inner ring 122; both the outer ring 121 and the inner ring 122 are located between the ring-shaped mounting plate 123 and the lamp shade 11; the first lighting source board 2 is located on the ring-shaped mounting plate 123, and the second lighting source board 3 is located on the lamp shade 11.

[0063] The detachable connection of the ring-shaped mounting plate 123 with the inner ring 122 and the outer ring 121 enables the first lighting source board 2 and the second lighting source board 3 to be exposed by removing the ring-shaped mounting plate 123 when the first lighting source board 2 and / or the second lighting source board 3 need to be maintained or replaced, thereby improving the convenience of maintaining the first lighting source board 2 and the second lighting source board 3.

[0064] As Figure 2 shown, the inner ring 122 includes a first ring-shaped flat plate 1221, a second ring-shaped flat plate 1222 and a first cylinder 1223; the first ring-shaped flat plate 1221 is coaxially arranged with the support plate 13 and is detachably connected to the support plate 13; the second ring-shaped flat plate 1222 is coaxially arranged with the ring-shaped mounting plate 123 and is detachably connected to the ring-shaped mounting plate 123; the first cylinder 1223 is located between the first ring-shaped flat plate 1221 and the second ring-shaped flat plate 1222 and is respectively connected to the outer circumferential surface of the first ring-shaped flat plate 1221 and the inner circumferential surface of the second ring-shaped flat plate 1222.

[0065] The first annular flat plate 1221 is located on a side of the support plate 13 away from the lampshade 11 to save space between the support plate 13 and the lampshade 11, further reducing the overall height of the annular ceiling lamp and saving space.

[0066] The connection between the first annular flat plate 1221, the first cylinder 1223 and the second annular flat plate 1222 makes the axial cross-section of the inner ring 122 into a Z shape, and the inner ring 122 is positioned between the annular mounting plate 123 and the support plate 13, and while supporting the annular mounting plate 123, it provides the annular lamp 1 with installation space for the first lighting source plate 2 and the second lighting source plate 3.

[0067] like Figure 2 As shown, the outer ring 121 includes a first annular pad 1211, a second annular pad 1212 and a second cylinder 1213; the first annular pad 1211 is located below the annular mounting plate 123 and is detachably connected to the annular mounting plate 123; the second annular pad 1212 is symmetrically arranged with the first annular pad 1211; the second annular pad 1212 is located above the lampshade 11 and is detachably connected to the lampshade 11; the second cylinder 1213 is located between the first annular pad 1211 and the second annular pad 1212, and is respectively connected to the outer circumferential surface of the first annular pad 1211 and the outer circumferential surface of the second annular pad 1212.

[0068] Specifically, the second lighting light source board 3 is located between the first annular pad 1211 and the second annular pad 1212, and is detachably connected to the second annular pad 1212; after the first annular pad 1211, the second cylinder 1213 and the second annular pad 1212 are connected in sequence, they not only support the annular mounting plate 123, but also provide an installation space for the second lighting light source board 3, so that after the second lighting light source board 3 is installed on the second annular pad 1212, it can be lifted by the second annular pad 1212 without directly contacting the lampshade 11, thereby providing heat dissipation space for the second lighting light source board 3 and ensuring the luminous effect of the second lighting light source board 3.

[0069] In one embodiment of the present application, the second lighting source board 3 includes a PCB board and a plurality of LED particles; the plurality of LED particles are arranged on the PCB board. Since the LED particles are close to the lampshade 11, the second lighting source board 3 can present a granular effect on the lampshade 11.

[0070] In an embodiment of the present application, the first lighting source board 2 emits yellowish-white light, uses yellowish-white LED particles, and in cooperation with the control of the controller over the driving power supply 14, can achieve dimming and color temperature adjustment to present different lighting states. The second lighting source board 3 emits blue light, uses blue LED particles, and in cooperation with the control of the controller over the driving power supply 14, can achieve cyclic alternation of effects such as a running light chasing effect, intermittent lighting, and flashing.

[0071] In an embodiment of the present application, the lamp shade 11 is a PC lamp shade.

[0072] The present application further provides a rail vehicle, which includes the annular ceiling lamp as described in any one of the above.

[0073] In summary, the present application provides an annular ceiling lamp and a rail vehicle. The annular ceiling lamp includes an annular lamp, which is used to be assembled to the top plate of the rail vehicle; a first lighting source board, which is located inside the annular lamp and is arranged at the top of the annular lamp; and a second lighting source board, which is located inside the annular lamp and is arranged at the bottom of the annular lamp. In the present application, lighting source boards are respectively arranged above and below inside the annular lamp, so that a combination and switching of multiple light effects can be achieved; on the one hand, the upper first lighting source board is used to provide basic and uniform lighting to ensure sufficient and evenly distributed brightness throughout the carriage; on the other hand, the lower second lighting source board is used for decorative lighting to provide local or dynamic light effects (such as particle light, running light effect, etc.) to enhance the visual experience and aesthetics of the space. This distribution design of the upper and lower positions of the two lighting source boards can effectively integrate different light source functions, enable the annular ceiling lamp to adapt to a variety of usage scenarios and requirements, and provide a more flexible lighting solution.

[0074] It should be understood that the application of the present utility model is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A ring-shaped ceiling light, characterized in that: It includes: Ring light fixture for mounting to the roof of a rail car; A first lighting source plate is located in the annular lamp and is arranged on the top of the annular lamp; The second lighting source plate is located in the annular lamp and is arranged at the bottom of the annular lamp.

2. The annular ceiling light according to claim 1, characterized in that: Along the horizontal direction, the first lighting light source board and the second lighting light source board are offset from each other.

3. The annular ceiling light according to claim 2, characterized in that: The projections of the first lighting source panel and the second lighting source panel toward the ground partially overlap.

4. The annular ceiling light according to claim 2, characterized in that: The first lighting source board is close to the inner side of the second lighting source board.

5. The annular ceiling light according to claim 1, characterized in that: The ring lamp comprises: lampshade; An annular lamp body is arranged above the lampshade; the first lighting source board and the second lighting source board are both located in the annular lamp body; A support plate is located in the annular accommodation space formed by the annular lamp body and is detachably connected to the annular lamp body; the support plate and the annular lamp body together form an accommodation cavity; A driving power source is disposed in the accommodating cavity and is electrically connected to the first lighting source board and the second lighting source board respectively.

6. The annular ceiling light according to claim 5, characterized in that: The annular lamp body comprises: An outer ring, detachably connected to the upper part of the lampshade; An inner ring is coaxially arranged with the outer ring and detachably connected to the top of the lampshade; An annular mounting plate is detachably connected to the outer ring and the inner ring respectively; the outer ring and the inner ring are both located between the annular mounting plate and the lampshade; the first lighting source plate is located on the annular mounting plate, and the second lighting source plate is located on the lampshade.

7. The annular ceiling light according to claim 6, characterized in that: The inner ring comprises: A first annular flat plate, coaxially arranged with the support plate and detachably connected to the support plate; A second annular flat plate is coaxially arranged with the annular mounting plate and detachably connected to the annular mounting plate; The first cylinder is located between the first annular plate and the second annular plate, and is connected to the outer circumferential surface of the first annular plate and the inner circumferential surface of the second annular plate respectively.

8. The annular ceiling light according to claim 7, characterized in that: The outer ring comprises: A first annular pad, located below the annular mounting plate and detachably connected to the annular mounting plate; A second annular pad is symmetrically arranged with the first annular pad; the second annular pad is located above the lampshade and is detachably connected to the lampshade; the second lighting source plate is located between the first annular pad and the second annular pad and is detachably connected to the second annular pad; The second cylinder is located between the first annular pad and the second annular pad, and is connected to the outer circumferential surface of the first annular pad and the outer circumferential surface of the second annular pad respectively.

9. The annular ceiling light according to claim 1, characterized in that: The second lighting source panel comprises: PCB board; A plurality of LED particles are arranged on the PCB board.

10. A rail vehicle, characterized in that: It comprises the annular ceiling light as described in any one of claims 1-9.

Images