Vehicle headliner light-emitting assembly and vehicle

Abstract

A vehicle headliner light-emitting assembly and a vehicle. The vehicle headliner light-emitting assembly is arranged in a cabin and covers and is held on a headliner. The vehicle headliner light-emitting assembly comprises: a main body, which covers and is held on the headliner, wherein a plurality of mounting holes are formed in the main body; and a plurality of optical fibers, wherein when each optical fiber is separately inserted from the top of the main body and held in the corresponding mounting hole, an assembly gap is formed between the tip of each optical fiber and the lower surface of the main body, so as to conceal the optical fiber in the mounting hole. In the vehicle headliner light-emitting assembly, by providing the assembly gap between each optical fiber and the main body, the tip of the optical fiber is concealed in the corresponding mounting hole, making it difficult for external light sources to irradiate the tip of the optical fiber, thereby avoiding the generation of additional refracted light spots or flickers that will affect the visual effect, ensuring the integrity of the lower surface of the main body, preventing the optical fibers from being seen by passengers in the cabin, and improving the overall aesthetics of the vehicle headliner light-emitting assembly structure.

Description

Vehicle roof lighting assembly and vehicle

[0001] The present disclosure claims priority to a patent application filed with the China Patent Office on June 20, 2024, with the application number 202410801646.3, and the patent application title "Vehicle roof lighting assembly and vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of vehicle interiors, in particular to a vehicle roof lighting assembly. The present disclosure also relates to a vehicle provided with the above-mentioned vehicle roof lighting assembly. BACKGROUND

[0003] With the continuous development of the automobile and new energy automobile industry, in addition to pursuing the driving performance and safety of vehicles, people have gradually paid more attention to the comfort of driving and riding. As a factor that affects the comfort of driving and riding of vehicles, people have increasingly high requirements for the "texture" of automobile interiors, and vehicle interiors have become a key factor affecting consumers' purchase of vehicles. Reasonable and aesthetic structural design of vehicle interiors is crucial to improving the overall quality of vehicles.

[0004] Among them, the light in the vehicle as part of the automobile interior, its application has not only been limited to providing sufficient illumination for the vehicle, people also hope to obtain a soothing indoor light environment in the vehicle, and the functional atmosphere lamp is a light decoration for creating atmosphere in the vehicle, which can meet the various sensory needs of passengers in different environments. The lighting assembly provided on the roof of the vehicle can serve as an atmosphere lamp, which can meet the lighting needs of the vehicle and create an atmosphere in the vehicle, improve the quality of the vehicle, and improve the comfort of driving and riding. Among them, the starry sky roof as a kind of vehicle roof lighting assembly has the optical effect of simulating starlight in the night sky, and is increasingly favored by consumers.

[0005] At present, the starry sky roof is usually provided on the vehicle roof. In the production of the starry sky roof, optical fibers are generally used as light sources, but it is found in use that the existing optical fiber starry sky roof is prone to producing light spots due to the transmission of light emitted by the optical fibers, or producing light spots or causing the head of the optical fiber to flicker due to the illumination of external light sources, thereby resulting in poor visual effect of the starry sky roof. SUMMARY

[0006] Therefore, the present disclosure aims to provide a vehicle roof lighting assembly to improve the visual effect and thus improve the use quality of the vehicle.

[0007] To achieve the above-mentioned purpose, the technical solution of the present disclosure is as follows:

[0008] A vehicle roof lighting assembly arranged in a vehicle cabin and covering a roof held thereon, the vehicle roof lighting assembly comprising: a roof body covering and held on the roof; a plurality of mounting holes formed on the roof body; a plurality of optical fibers, when each of the optical fibers is inserted and held in a corresponding one of the mounting holes from above the roof body, a fitting gap is formed between a head of each of the optical fibers and a lower surface of the roof body to constitute a hiding of the optical fibers in the mounting holes.

[0009] Further, the fitting gap is set to 0.45mm-0.55mm.

[0010] Further, a hole diameter of each of the mounting holes is greater than a diameter of each of the optical fibers to form a clearance between the optical fibers and a hole wall of the mounting holes.

[0011] Further, the hole diameter of the mounting holes / the diameter of the optical fibers≥1.5.

[0012] Further, each of the optical fibers is fixed at the mounting hole of the roof body by a structural adhesive bonding;

[0013] The structural adhesive seals the mounting hole on an upper surface of the roof body.

[0014] Further, a buffer layer is coated on an outer surface of each of the optical fibers.

[0015] Further, the buffer layer adopts a soft glue material coated on the outer surface of the optical fibers.

[0016] Further, each of the optical fibers is classified and constrained into a bundle shape above the roof body.

[0017] Further, a support seat is fixed above the roof body, the support seat is set to a plurality corresponding to a number of the optical fibers in the bundle shape, each of the optical fibers in the bundle shape is supported by the support seat to form a gap between each of the optical fibers and an upper surface of the roof body.

[0018] Further, each of the support seats is arranged with an interval.

[0019] Further, each of the optical fibers is connected with a corresponding light source arranged on a roof of a vehicle body, the vehicle roof lighting assembly is arranged with the light source through a controller to control different light sources to realize a full star shape, a meteor shower shape, a single color, a breathing, a flickering, and a brightness adjustable function.

[0020] Further, the roof body has a compression amount along a thickness direction.

[0021] When the lower surface of the top body is pressed by an external force along the thickness direction of the top body, the clearance of the adjacent side of the optical fiber increases, and the head of the adjacent optical fiber is not lower than the lower surface of the top body.

[0022] Further, the top body comprises a substrate layer, a non-woven fabric layer and an appearance layer which are arranged in a top-down manner.

[0023] The substrate layer is a main structural component of the top body structure, the non-woven fabric layer is attached and fixed on the substrate layer, the appearance layer is attached on the non-woven fabric layer by adhesive, and the mounting hole is a through hole penetrating through the substrate layer, the non-woven fabric layer and the appearance layer.

[0024] Further, the appearance layer is made of imitation suede.

[0025] The surface of the imitation suede is configured as fine and uniform fluff.

[0026] Compared with the related art, the present disclosure has the following advantages:

[0027] The assembly gap a between the head of the optical fiber and the top body of the vehicle roof lighting assembly is set so that the head of the optical fiber is hidden in the mounting hole, so that the external light source is difficult to irradiate the head of the optical fiber to produce additional refraction spot or flicker, which affects the visual effect, and the head of the optical fiber is hidden in the mounting hole, which can ensure the integrity of the lower surface of the top body, avoid the observation of the optical fiber between the passengers in the vehicle cabin, and improve the overall aesthetic degree of the structure of the vehicle roof lighting assembly.

[0028] The assembly gap between the head of the optical fiber and the lower surface of the top body is set to 0.45mm-0.55mm, so as to avoid the external light source from easily irradiating on the optical fiber to produce spot or flicker, at the same time, prevent the head of the optical fiber from being too deep into the top body, which will cause the visual angle of the light emitting point to decrease, and to a certain extent, avoid the light emitted by the optical fiber from decreasing in brightness due to the too deep mounting hole, so as to ensure the optical effect of the light emitting of the optical fiber.

[0029] Through the setting of the clearance between the optical fiber 3 and the hole wall of the mounting hole 2, the light emitted by the optical fiber 3 is difficult to transmit through the material of the lower surface of the top body 1 to produce a light spot, so that the light area of the light emitting point of the light emitting assembly is small, and the boundary between the light area and the lower surface of the top body 1 is obvious, so as to effectively simulate the optical visual effect of starlight. At the same time, through the setting of the assembly gap between the optical fiber and the top body and the clearance between the optical fiber and the hole wall of the mounting hole, the head of the optical fiber is hidden in the mounting hole, so that the light emitting point of the vehicle roof lighting assembly can better simulate the actual optical effect of starlight, so as to improve the visual effect and improve the use quality of the vehicle.

[0030] The ratio of the hole diameter of the mounting hole to the diameter of the optical fiber is greater than or equal to 1.5, which can avoid the hole of the lower surface of the top body being too large to be directly observed by the passenger, and can also avoid the ratio of the hole diameter to the diameter being too small, so that the light of the optical fiber is easily transmitted through the material of the lower surface of the top body, and a light spot is generated to interfere with the optical effect of the vehicle roof lighting assembly, thereby improving the visual effect and facilitating the installation of the optical fiber.

[0031] The outer surface of each optical fiber is coated with a buffer layer, which can form a buffer when a collision occurs between the optical fibers or between the optical fiber and the top body, thereby protecting the optical fiber from damage and affecting the optical effect. At the same time, it can also reduce the generation of abnormal noise when a collision occurs, thereby improving the comfort of the passengers.

[0032] Each optical fiber is classified and constrained into a bundle shape above the top body, so as to facilitate the fixation and bundling of the optical fibers, and reduce the collision between the optical fibers. At the same time, the optical fibers for realizing different functions can be classified and bundled together, thereby facilitating the installation and later maintenance of the optical fibers.

[0033] A plurality of support seats for the bundled optical fibers are fixed above the top body, and the bundled optical fibers are supported by the support seats to form a gap between the optical fibers and the upper surface of the top body. This prevents the optical fibers from colliding with the top body due to vehicle movement and vibration, thereby reducing the generation of abnormal noise to some extent, and the spacing between the optical fibers and the top body provides a certain heat dissipation space for the optical fibers.

[0034] The support seats are spaced apart from each other, which provides effective support for the optical fibers, increases the heat dissipation space of the optical fibers, and reduces the number of installed support seats, thereby facilitating the installation of the support seats. The vehicle roof lighting assembly is provided with a controller and the light source, which controls different light sources to realize the functions of full star, meteor shower, single color, breathing, flickering, and adjustable brightness, thereby providing the lighting assembly with better visual effects.

[0035] The top body has a compression amount along the thickness direction, and when the lower surface of the top body is pressed along the thickness direction of the top body, the adjacent optical fiber on one side of the top body is pulled to increase the clearance, and the head of the adjacent optical fiber is not lower than the lower surface of the top body, so as to prevent the head of the optical fiber from protruding and injuring the passenger when the passenger touches it, thereby improving the safety of the lighting assembly.

[0036] The top body includes a base material layer, a non-woven fabric layer, and an appearance layer stacked from top to bottom to form the top body, and the appearance layer is made of imitation suede. The pile surface of the imitation suede makes the vehicle roof lighting assembly have a better appearance, thereby improving the aesthetic degree.

[0037] In addition, another object of the present disclosure is to provide a vehicle provided with the vehicle roof lighting assembly as described above.

[0038] The vehicle of the present disclosure has the same beneficial effects as the vehicle roof lighting assembly compared with the prior art, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0039] The accompanying drawings, which form a part of the present disclosure, are intended to provide further understanding of the present disclosure, and are used to interpret the illustrative embodiments of the present disclosure and their descriptions, and do not constitute improper limitations on the present disclosure. In the drawings:

[0040] Fig. 1 is a schematic view of a partial structure of a vehicle roof lighting assembly according to an embodiment of the present disclosure;

[0041] Fig. 2 is a partial cross-sectional view of a position indicated by A in Fig. 1 according to an embodiment of the present disclosure;

[0042] Explanation of reference signs:

[0043] 1, top body;

[0044] 101, base material layer; 102, non-woven fabric layer; 103, appearance layer;

[0045] 2, mounting hole;

[0046] 201, structural adhesive;

[0047] 3, optical fiber; 3a, bundle-shaped optical fiber; 4, support seat;

[0048] a, assembly pitch; b, aperture; c, diameter. DETAILED DESCRIPTION

[0049] In order to make the technical solutions of the present disclosure and their advantages clearer and more apparent, the present disclosure will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0050] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0051] In addition, in the description of the present disclosure, it should be noted that if terms indicating orientation or position relationship such as "upper", "lower", "inner", "outer" and the like appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure. In addition, if the terms "first", "second" and the like appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0052] In addition, in the description of the present disclosure, the terms "mount", "connect", "connection", "connector" should be understood broadly unless otherwise explicitly limited. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood in conjunction with the specific circumstances.

[0053] In the present disclosure, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0054] In the following, the present disclosure will be specifically described through exemplary embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description.

[0055] The embodiments of the first aspect of the present disclosure provide a vehicle roof lighting assembly arranged in a vehicle cabin and covering a holding on a roof, and the vehicle roof lighting assembly can improve the visual effect of the starry sky roof.

[0056] In the related art, when the starry sky roof in the vehicle is made, an optical fiber is generally used as a light source, and an opening also needs to be made on the inner lining plate at the vehicle roof, that is, the top body, to expose one end of the optical fiber, and the remaining part of the optical fiber is fixed inside the roof of the vehicle cabin. Since one end of the optical fiber is directly exposed at the lower surface of the top body, the light emitted by the optical fiber is easy to transmit through the material of the lower surface of the top body, thereby producing a light spot in the axial direction of the above opening, or producing a light spot or causing the head of the optical fiber to flicker due to the irradiation of an external light source, which all result in poor visual effect of the starry sky roof.

[0057] In view of this, in order to overcome the deficiencies existing in the related art, in the vehicle roof lighting assembly of the present embodiment, as shown in FIGS. 1 and 2, the overall design includes a top body 1 and a plurality of optical fibers 3.

[0058] Wherein, the top body 1 covers and holds on the roof, and a plurality of installation holes 2 are formed on the top body 1, while each optical fiber 3 is inserted and held in the corresponding installation hole 2 from the top of the top body 1, a fitting gap a is formed between the head of each optical fiber 3 and the lower surface of the top body 1, so that the optical fiber 3 is hidden in the installation hole 2.

[0059] It can be understood that the optical fiber 3 emits light by connecting the optical fiber 3 with the light source arranged on the roof of the vehicle body, making the optical fiber 3 conduct the light emitted by the light source, and finally the light is emitted from the head of the optical fiber 3. In the process of conducting light by the optical fiber 3, most of the light is emitted through the end face of the head of the optical fiber 3, the optical fiber 3 is made of transparent material, and the end face is usually a flat end face, so that the head of the optical fiber 3 will reflect under external light. Especially in the dark cabin, the light emitted by other light-emitting components in the cabin or the electronic device screen of the passenger in the cabin will be refracted by the head of the optical fiber 3 into the cabin, causing additional light spots in the cabin, destroying the light effect atmosphere created by the vehicle roof lighting assembly in the cabin, and thus causing the decline of visual effect.

[0060] In addition, when the head of the optical fiber 3 is flush with the lower surface of the top body 1, and in the daytime and in the closed state of the vehicle roof lighting assembly, the optical fiber 3 does not emit light, because the material of the head of the optical fiber 3 is obviously different from that of the lower surface of the top body 1, the passenger can obviously observe the optical fiber 3 in the structure of the vehicle roof lighting assembly, and under the irradiation of the external light source, the head of the optical fiber 3 made of transparent material will flicker to a certain extent due to the irradiation of the external light source. Thus, the easily observed optical fiber 3 destroys the integrity and aesthetic degree of the vehicle roof lighting assembly.

[0061] In the embodiment, the fitting gap a between the head of the optical fiber 3 and the top body 1 can hide the head of the optical fiber 3 in the installation hole 2, so that the external light source is difficult to irradiate the head of the optical fiber 3 to produce additional refracted light spots or flicker, which affects the visual effect. And the head of the optical fiber 3 is hidden in the installation hole 2, which can ensure the integrity of the lower surface of the top body 1, and also avoid the passengers in the cabin from observing the optical fiber 3, and improve the overall aesthetic degree of the structure of the vehicle roof lighting assembly.

[0062] In addition, in some exemplary embodiments of the present embodiment, the hole diameter b of each installation hole 2 is greater than the diameter c of each optical fiber 3, so as to form a clearance between the optical fiber 3 and the hole wall of the installation hole 2. It can be understood that part of the light conducted by the optical fiber 3 will be emitted through the outer peripheral surface of the optical fiber 3, and the lower surface of the top body 1 usually adopts the commonly used material of the interior trim of the cabin, such as leather, plastic parts, etc. The material usually cannot completely block light, and when the light irradiates on one side of the material, the other side will produce light spots due to incomplete transmission of light.

[0063] Therefore, when the hole diameter b of the mounting hole 2 and the diameter c of the optical fiber 3 are equal, part of the light emitted from the outer circumferential surface of the optical fiber 3 will be projected into the material constituting the lower surface of the roof body 1 and transmitted through the lower surface of the roof body 1, which will to some extent easily cause the annular light spot due to the transmission of the light through the material of the lower surface of the roof body 1 to be generated in the circumferential direction of the light emitting point of the vehicle roof lighting assembly, and the brightness of the light spot gradually decreases outward from the optical fiber 3. This will cause the light emitting point of the vehicle roof lighting assembly to have an increased light area, and the boundary between the light emitting point and the lower surface of the roof body 1 is not clear, which makes it difficult to form a small light spot like a star, resulting in a decrease in the visual effect of the lighting assembly.

[0064] In the present embodiment, the space between the optical fiber 3 and the wall of the mounting hole 2 is arranged to make it difficult for the light emitted by the optical fiber 3 to form a light spot by transmitting through the material of the lower surface of the roof body 1, so that the light emitting point of the lighting assembly has a smaller light area, and the boundary between the light emitting point and the lower surface of the roof body 1 is clear, thereby effectively simulating the optical visual effect of starlight. At the same time, the assembly spacing a between the optical fiber 3 and the lower surface, and the space between the optical fiber 3 and the mounting hole 2, in combination, can also make the end surface of the head of the optical fiber 3 and the light emitted from the outer circumferential surface of the optical fiber 3 to be fully diffused in the mounting hole 2, and finally make the fully diffused light to be emitted from the mounting hole 2 into the vehicle, which can to some extent improve the visual angle of the light emitting point of the lighting assembly and improve the visual effect.

[0065] In specific implementation, as an example, the diameter c of the optical fiber 3 can be set to 0.5-1mm to ensure that the optical fiber 3 has good light guiding performance and the light emitting point of the lighting assembly can emit sufficient brightness. In addition, the optical fiber 3 in the present embodiment is made of polymethyl methacrylate (PMMA), which has good light transmission, heat resistance and rigidity, so as to ensure that the optical fiber 3 is not easily damaged by external force and vibration of the vehicle in the vehicle roof, thereby prolonging the service life.

[0066] In addition, in some exemplary embodiments of the present embodiment, each optical fiber 3 can be fixed at the mounting hole 2 of the roof body 1 by means of structural adhesive 201 bonding, so as to ensure the fixation of the optical fiber 3 and maintain the assembly spacing a between the head of the optical fiber 3 and the lower surface and the space between the head of the optical fiber 3 and the wall of the mounting hole 2. In specific implementation, the structural adhesive 201 can be a conventional structural adhesive 201 known to those skilled in the art, which has good bonding effect. In the process of bonding the optical fiber 3, the structural adhesive should be ensured to close the mounting hole 2 on the upper surface of the roof body 1, and the structural adhesive 201 should be prevented from entering the mounting hole 2, so as to ensure the stable bonding of the optical fiber 3 while preventing the structural adhesive 201 from damaging the optical effect of the optical fiber 3 by entering the mounting hole 2.

[0067] As described above, by setting the assembly gap a between the optical fiber 3 and the top body 1 and the clearance between the optical fiber 3 and the hole wall of the mounting hole 2, the head of the optical fiber 3 is hidden in the mounting hole 2, avoiding the generation of light spots and flicker due to the illumination of the head of the optical fiber 3 by external light sources, and enabling the light emitting point of the light emitting assembly to better simulate the actual optical effect of starlight, thereby improving the visual effect and enhancing the use quality of the vehicle.

[0068] Based on the above overall introduction, specifically, since the brightness of the optical fiber 3 is limited, the assembly gap a between the head of the optical fiber 3 and the lower surface should be set within a suitable range to ensure the optical effect of the light emitting point. In some exemplary embodiments, the assembly gap a between the head of the optical fiber 3 and the lower surface of the top body 1 is set to 0.45mm-0.55mm. When the assembly gap a between the head of the optical fiber 3 and the lower surface of the top body 1 is too small, at a certain angle, the external light source is still likely to illuminate the optical fiber 3 to generate light spots or flicker, or is easily observed by the passengers in the vehicle cabin, affecting the visual effect. When the assembly gap a between the head of the optical fiber 3 and the lower surface of the top body 1 is too large, the head of the optical fiber 3 is too deep into the top body 1, which can cause the visual angle of the light emitting point to decrease.

[0069] In addition, the light emitted by the optical fiber 3 is difficult to be emitted through the mounting hole 2 in the deep mounting hole 2, and after excessive diffuse reflection in the deep mounting hole 2, the light intensity decreases, resulting in a decrease in the brightness of the light emitting point of the light emitting assembly, thereby reducing the visual effect. Therefore, by setting the assembly gap a between the head of the optical fiber 3 and the lower surface of the top body 1 to 0.45mm-0.55mm, additional light spots caused by the optical fiber 3 can be avoided, the light emitting point has better brightness, and the light emitting point of the light emitting assembly has better optical effect. In specific implementation, the assembly gap a between the head of the optical fiber 3 and the lower surface of the top body 1 can be set to 0.45mm, 0.47mm, 0.49mm, 0.51mm, 0.53mm or 0.55mm.

[0070] It can be understood that when the ratio of the hole diameter b of the mounting hole 2 to the diameter c of the optical fiber 3 is too large, the hole diameter b of the mounting hole 2 is large, the hole of the lower surface of the top body 1 is large, and the light emitting assembly is easily observed by the passengers in the vehicle cabin, resulting in a decrease in the aesthetic degree of the light emitting assembly. When the light emitted by the optical fiber 3 illuminates the hole wall of the mounting hole 2, the hole wall is illuminated by the light, and the large hole diameter b is easily observed by the passengers, thereby causing the visual effect of the light emitting point to decrease. When the ratio of the hole diameter b of the mounting hole 2 to the diameter c of the optical fiber 3 is too small, the light of the optical fiber 3 is still likely to transmit through the material of the lower surface of the top body 1, and the annular light spot as described above is formed.

[0071] Therefore, the above two cases will cause the light emitting point to be difficult to effectively simulate the starlight emitting effect, and the visual effect of the light emitting assembly is reduced. In order to ensure the optical fiber 3 effect of the light emitting point of the light emitting assembly, in some exemplary embodiments of the present embodiment, the ratio of the hole diameter b of the mounting hole 2 to the diameter c of the optical fiber 3 can be ≥1.5. Therefore, by setting the ratio of the hole diameter b of the mounting hole 2 to the diameter c of the optical fiber 3 to be ≥1.5, the optical fiber 3 and the mounting hole 2 have a suitable clearance, thereby improving the visual effect of the light emitting assembly. In specific implementation, the hole diameter b of the mounting hole 2 of the present embodiment can be set to 1.1mm, and the diameter c of the optical fiber 3 is 0.75mm. While ensuring the optical effect, the optical fiber 3 is facilitated to be arranged in the mounting hole 2.

[0072] In order to simulate the optical visual effect of star point flickering in the night sky, a large number of light emitting points are arranged on the top body 1, that is, the mounting holes 2 and the heads of the optical fibers 3 arranged in the mounting holes 2, and the other end of each optical fiber 3 is connected with a light source, and the main body of each optical fiber 3 is retained on the top body 1. During the movement of the vehicle, the main bodies of the optical fibers 3 wound on the top body 1 will collide and rub with each other, or the optical fibers 3 will collide with the top body 1 and other structures of the top, resulting in abnormal noise at the structure of the light emitting assembly of the vehicle. At the same time, the collision between the optical fibers 3 and other structures will also cause damage to the outer surface of the optical fiber 3, thereby causing the light guiding effect of the optical fiber 3 to decrease and the service life to decrease.

[0073] In order to avoid abnormal noise and improve the service life of the optical fiber 3, in some exemplary embodiments of the present embodiment, a buffer layer is coated on the outer surface of each optical fiber 3. The buffer layer has a buffering effect when the optical fibers 3 collide with each other or the optical fibers 3 collide with other vehicle body structures, and has a soundproof effect, which can avoid abnormal noise and damage to the optical fiber 3 to a certain extent, thereby improving the service life of the optical fiber 3. In specific implementation, as an example, the buffer layer can be made of soft foam, soft rubber and other soft materials. In order to facilitate the coating of the buffer layer and minimize the radial size of the optical fiber 3, in some exemplary embodiments, the buffer layer can be made of soft rubber, such as silicone, TPE soft rubber, TPU soft rubber and the like, which is easy to coat on the optical fiber 3, has good buffering effect and thin thickness.

[0074] In order to further avoid the bumping of the optical fibers 3 and eliminate the abnormal sound, the optical fibers 3 can be bundled to reduce the bumping between the optical fibers 3. Meanwhile, in order to make the light emitting assembly have better visual effect, in some example embodiments of the present embodiment, based on the aforementioned connection of the optical fibers 3 with the light sources arranged on the vehicle roof, the vehicle roof light emitting assembly can also be set by the controller in cooperation with the light sources to control different light sources to realize the functions of full star, meteor shower, single color, breathing, flickering, and brightness adjustment. At this time, the arrangement positions of the optical fibers 3 need to be planned to facilitate the connection of different optical fibers 3 with corresponding light sources. In order to prevent the optical fibers 3 used to realize the functions from being directly mixed and arranged on the top body 1, which affects the installation and connection of the light emitting assembly optical fibers 3 and is beneficial to the later maintenance and inspection.

[0075] Therefore, in some example embodiments of the present embodiment, the optical fibers 3 can be classified and bundled above the top body 1. After the optical fibers 3 are bundled, the bumping between the optical fibers 3 is reduced, the generation of abnormal sound is reduced to a certain extent, and the service life of the optical fibers 3 is improved. Meanwhile, the optical fibers 3 belonging to the same type can be concentrated and bundled, and finally connected with corresponding light sources. In specific implementation, the classified and bundled optical fibers 3 should be marked with corresponding functions to make the levels of the optical fibers 3 clear, which facilitates the installation and later maintenance of the optical fibers 3.

[0076] When the bundled optical fibers 3a are kept on the top body 1, the vibration of the vehicle body during the movement of the vehicle can cause the bundled optical fibers 3a to vibrate and then impact the top body 1 and the roof, resulting in the generation of abnormal sound. In order to eliminate the abnormal sound to a certain extent, in some example embodiments of the present embodiment, support seats 4 are fixed above the top body 1. The support seats 4 are arranged in a number corresponding to the number of the bundled optical fibers 3a. The bundled optical fibers 3 are supported by the support seats 4 to form a gap between the optical fibers 3 and the upper surface of the top body 1.

[0077] It can be understood that the bundled optical fibers 3a can be raised by the support seats 4 to avoid the generation of abnormal sound due to the vibration of the vehicle, which affects the comfort of the ride. In specific implementation, the bundled optical fibers 3a can be fixed on the support seats 4 by a cable tie. The support seats 4 can be made of polyethylene terephthalate (PET) material to raise the bundled optical fibers 3a. The pad has good mechanical properties and service life, and has a relatively light weight, which can effectively support the bundled optical fibers 3a while facilitating the installation on the top body 1. The height of the pad can be set to 20 mm to increase the distance between the bundled optical fibers 3a and the top body 1, preventing the vehicle with the vehicle roof light emitting structure from touching the top body 1 after a long time of use, which causes abnormal sound.

[0078] In order to reduce the number of support seats 4 while maintaining the support of the bundle-shaped optical fiber 3a, in some exemplary embodiments, the support seats 4 are spaced apart. It is understood that installing too many support seats 4 can not only increase costs, but also can result in the installation of some support seats 4 not meeting production requirements, causing the support seats 4 to fall off or detach during actual use of the vehicle and the light assembly, causing abnormal noise and affecting the use quality of the vehicle. In specific implementation, the support seats 4 are spaced apart by 200 mm to reduce the number of support seats 4 while providing the bundle-shaped optical fiber 3a with a certain sag space and providing the bundle-shaped optical fiber 3a with a certain heat dissipation space, thereby prolonging the service life of the optical fiber 3.

[0079] In related art, improper operation of the passenger on the light assembly structure, that is, when the passenger touches the light assembly on the top of the vehicle compartment, the top body 1 is easily pressed and the head of the optical fiber 3 is exposed, thereby causing the situation of the passenger touching the light assembly being pricked by the optical fiber 3. In order to avoid the above situation, in some exemplary embodiments, the top body 1 can be provided with a compression amount along the thickness direction, which makes the lower surface of the top body 1 relatively soft and does not cause injury to the passenger due to bumps. At the same time, when the lower surface of the top body is pressed by external force along the thickness direction of the top body 1, the clearance of the adjacent optical fiber 3 on one side is increased, and the head of the adjacent optical fiber 3 is not lower than the lower surface of the top body 1. That is, when the lower surface of the top body 1 of the light assembly is touched and pressed, the compression amount of the top body 1 is limited, and the head of the optical fiber 3 is not exposed, thereby avoiding the situation of pricking the hand and improving the protection of the passengers in the vehicle compartment, thereby improving the use quality of the vehicle.

[0080] Specifically, in some exemplary embodiments, the top body 1 includes, for example, a substrate layer 101, a non-woven fabric layer 102, and an appearance layer 103 stacked from top to bottom, and the appearance layer 103 faces the interior of the vehicle cabin. The substrate layer 101 is the main structural component of the top body 1 structure, and the non-woven fabric layer 102 is attached to the substrate layer 101 to replace the polyester sponge filling layer in the related art, which can be used to limit the compression amount in the thickness direction of the top body 1, prevent the head of the optical fiber 3 from being exposed when the lower surface of the top body 1 is pressed, and prevent the hand from being pricked. At the same time, the non-woven fabric layer 102 can facilitate the fixation of the appearance layer 103 on the substrate layer 101, and facilitate the production and manufacturing of the top body 1. In a specific implementation, the thickness of the non-woven fabric layer 102 is 0.6 mm. The mounting hole 2 on the top body 1 is a through hole penetrating through the substrate layer 101, the non-woven fabric layer 102, and the appearance layer 103, the optical fiber 3 is inserted into the mounting hole 2 from the side of the substrate layer 101 away from the vehicle cabin, and the appearance layer 103 is attached to the non-woven fabric layer 102 by adhesive.

[0081] In order to improve the appearance of the vehicle roof lighting assembly, in some exemplary embodiments, the appearance layer 103 can be made of imitation suede, for example. Specifically, the imitation suede can be made of imitation suede materials known to those skilled in the art, which has a good appearance to improve the appearance of the vehicle roof lighting assembly.

[0082] In addition, since the surface of the imitation suede is usually constructed as fine and uniform fluff, that is, in a specific implementation, the surface of the imitation suede can be constructed as fine and uniform fluff, which can shield the appearance layer 103, that is, the mounting hole 2 on the top body 1 to some extent, so that passengers in the vehicle cabin cannot easily observe the existence of the mounting hole 2 in the off state of the vehicle roof lighting assembly, and the optical effect of the simulated night sky starlight can be quickly highlighted in the on state of the vehicle roof lighting assembly, and the quick highlighting of the starry sky effect can bring passengers a better visual shock, thereby improving the visual effect of the vehicle roof lighting assembly and improving the use quality of the vehicle.

[0083] It is worth noting that, for the vehicle roof lighting assembly of the present embodiment, based on the above exemplary embodiments, as a preferred embodiment, the vehicle roof lighting assembly still includes the top body 1 formed with a plurality of mounting holes 2 and a plurality of optical fibers 3, as shown in FIGS. 1 and 2.

[0084] In the preferred embodiment, when each optical fiber 3 is inserted into and held in the corresponding mounting hole 2 from above the top body 1, a fitting clearance a is formed between the head of each optical fiber 3 and the lower surface of the top body 1 to hide the optical fiber 3 in the mounting hole 2, and the diameter of each mounting hole 2 is greater than the diameter of each optical fiber 3 to form a gap between the optical fiber 3 and the hole wall of the mounting hole 2.

[0085] In the preferred embodiment, the fitting clearance a is set to be between 0.45 mm and 0.55 mm, the ratio between the diameter b of each mounting hole 2 and the diameter c of each optical fiber 3 is greater than or equal to 1.5, each optical fiber 3 is fixed to the mounting hole 2 of the top body 1 by adhesive bonding, and a buffer layer is wrapped around the outer surface of each optical fiber 3.

[0086] In the preferred embodiment, each optical fiber 3 is bundled after being sorted from above the top body 1, and a plurality of support seats 4 are fixed above the top body 1, each optical fiber 3 is supported by the corresponding support seat 4, and a gap is formed between each optical fiber 3 and the upper surface of the top body 1. Meanwhile, the top body 1 specifically includes a substrate layer 101, a non-woven fabric layer 102, and an appearance layer 103 stacked from top to bottom. The substrate layer 101 constitutes the main structural member of the top body 1 structure, the non-woven fabric layer 102 is attached and fixed to the substrate layer 101, and the appearance layer 103 is attached to the non-woven fabric layer 102 by adhesive, and the mounting hole 2 is a through hole penetrating through the substrate layer 101, the non-woven fabric layer 102, and the appearance layer 103.

[0087] In the above preferred embodiment, the specific settings and arrangement of the top body 1, the mounting hole 2, the optical fiber 3, the fitting clearance a, the ratio between the diameter b of the mounting hole 2 and the diameter c of the optical fiber 3, and the support seat 4, etc. can still refer to the descriptions in the aforementioned exemplary embodiments. Furthermore, the top body 1, the mounting hole 2, the optical fiber 3, the fitting clearance a, the ratio between the diameter b of the mounting hole 2 and the diameter c of the optical fiber 3, and the support seat 4, etc. based on the beneficial effects brought by their designs can also refer to the descriptions in the aforementioned exemplary embodiments.

[0088] In summary, the vehicle roof lighting assembly of the present embodiment hides the head of the optical fiber 3 in the mounting hole 2 by setting the fitting clearance a between the optical fiber 3 and the top body 1 and the gap between the optical fiber 3 and the hole wall of the mounting hole 2, avoids the generation of light spots and flickering due to the irradiation of the head of the optical fiber 3 by external light sources, and further enables the light emitting point to better simulate the actual optical effect of starlight, thereby improving the visual effect of the vehicle roof lighting assembly and enhancing the use quality of the vehicle.

[0089] The embodiments of the second aspect of the present disclosure provide a vehicle, which is provided with the vehicle roof lighting assembly as described above in the overall structure.

[0090] As described above, the vehicle of the present embodiment can produce a visual effect of simulated starlight on the roof in the vehicle cabin through the vehicle roof light-emitting assembly, so as to create an atmosphere in the vehicle and improve the driving comfort of the vehicle, thereby improving the use quality of the vehicle.

[0091] The above merely describes some embodiments of the present disclosure and is not intended to limit the present disclosure. The technical features or structures in the foregoing different embodiments can be combined as needed to form other specific technical solutions. Various modifications and changes can be made to the present disclosure by those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the claims of the present disclosure.

Claims

1. A vehicle roof light-emitting assembly, disposed inside the vehicle compartment and covering and held on the roof, characterized in that, Comprising: a top body (1) covering and being held on the roof; a plurality of mounting holes (2) are formed on the top body (1); a plurality of optical fibers (3), when each of the optical fibers (3) is respectively inserted and held in the corresponding mounting hole (2) from above the top body (1), a fitting gap (a) is formed between the head of each of the optical fibers (3) and the lower surface of the top body (1) to constitute the hiding of the optical fibers (3) in the mounting hole (2).

2. The vehicle roof lighting assembly according to claim 1, characterized in that: the fitting gap (a) is set to 0.45mm-0.55mm.

3. The vehicle roof lighting assembly according to claim 1, characterized in that: the hole diameter of each of the mounting holes (2) is larger than the diameter of each of the optical fibers (3) to form a clearance between the optical fibers (3) and the hole wall of the mounting hole (2).

4. The vehicle roof lighting assembly according to claim 3, characterized in that: the hole diameter (b) of the mounting hole (2) / the diameter (c) of the optical fiber (3) ≥1.

5.

5. The vehicle roof lighting assembly according to claim 1, characterized in that: each of the optical fibers (3) is fixed at the mounting hole (2) of the top body (1) by means of structural adhesive (201) bonding; the structural adhesive (201) seals the mounting hole (2) on the upper surface of the top body (1).

6. The vehicle roof lighting assembly according to claim 1, characterized in that: a buffer layer is coated on the outer surface of each of the optical fibers (3).

7. The vehicle roof lighting assembly according to claim 6, characterized in that: the buffer layer adopts a soft glue material coated on the outer surface of the optical fiber (3).

8. The vehicle roof lighting assembly according to claim 1, characterized in that: each of the optical fibers (3) is classified and constrained into a bundle shape above the top body (1).

9. The vehicle roof lighting assembly according to claim 8, characterized in that: a support seat (4) is fixed above the top body (1), the support seat (4) is set to be multiple corresponding to the number of the optical fibers (3) in a bundle shape, and each of the optical fibers (3) in a bundle shape is supported by the support seat (4) to form a gap between each of the optical fibers (3) and the upper surface of the top body (1).

10. The vehicle roof lighting assembly according to claim 9, characterized in that: each of the support seats (4) is arranged with an interval.

11. The vehicle roof lighting assembly according to claim 8, characterized in that: each of the optical fibers (3) is connected with a corresponding light source arranged on the roof of the vehicle body, and the vehicle roof lighting assembly can control different light sources to realize the functions of full star shape, meteor shower shape, single color, breathing, flickering and adjustable brightness through the cooperation of the controller and the light source.

12. The vehicle roof lighting assembly according to any one of claims 1 to 11, characterized in that: the top body (1) has a compression amount along the thickness direction. When the lower surface of the top body (1) is pressed by an external force along the thickness direction of the top body (1) to increase the clearance on the side adjacent to the optical fiber (3), the head of the optical fiber (3) is not lower than the lower surface of the top body (1).

13. The vehicle roof lighting assembly of claim 12, wherein: The top body (1) comprises a substrate layer (101), a non-woven fabric layer (102) and an appearance layer (103) arranged in a top-down stack; The substrate layer (101) is a main structural component constituting the structure of the top body (1), the non-woven fabric layer (102) is fixedly attached to the substrate layer (101), the appearance layer (103) is attached to the non-woven fabric layer (102) by adhesive, and the mounting hole (2) is a through hole penetrating through the substrate layer (101), the non-woven fabric layer (102) and the appearance layer (103).

14. The vehicle roof lighting assembly of claim 13, wherein: The appearance layer (103) is made of imitation suede; The surface of the imitation suede is configured as fine and uniform fluff.

15. A vehicle, characterized in that: The vehicle is provided with the vehicle roof lighting assembly of any one of claims 1 to 14.

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