Vehicle tail lamp device and vehicle
By using the synergistic effect of the diffusion layer and the Fresnel lens layer in the taillight device, the problem of high luminescence cost of LED module lamps is solved, and the visual effect of large-scale luminescence is achieved and cost-saving.
Patent Information
- Application Number
- CN202422300007.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-19
AI Technical Summary
In the prior art, in order to achieve a large-scale light emission effect, the number of LED modules is usually required to increase, resulting in a high cost of taillights.
A taillight device including a mounting plate, a light emitting module and an inner lampshade is adopted. The inner lampshade consists of a diffusion layer and a Fresnel lens layer. The Fresnel lens layer polymerizes light and radiates to the diffusion layer. The diffusion layer diffuses light to the outside of the vehicle. Through the synergy between the Fresnel lens layer and the diffusion layer, light loss is reduced and a large-scale light emission is achieved.
A small number of light emitting modules can achieve a large-scale light emitting visual effect, effectively saving costs, and improving the efficiency and uniformity of light emitting from the vehicle.
Smart Images
Figure CN223137671U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, and particularly relates to a taillight device for a vehicle and a vehicle. Background Art
[0002] Taillights are an important part of a vehicle's safety system, and they include various different types of lights, such as width indicator lights, brake lights, turn signal lights, reverse lights, and fog lights. With the upgrading of light source technology and the upgrading of the functions of vehicle lamps, taillights have gradually been upgraded from traditional halogen lamps to LED module lamps. However, LED module lamps often have the problem of concentrated light-emitting areas and cannot achieve the visual effect of large-range light emission. Currently, in order to achieve the large-range light-emitting effect of LED module lamps, the common practice is to arrange a large number of LED modules over a large area, which results in a relatively high cost of the taillights due to the increase in the number of LED modules. Summary of the Utility Model
[0003] The main object of the utility model is to propose a taillight device for a vehicle and a vehicle, aiming to solve the technical problem in the prior art that in order to achieve the large-range light-emitting effect of LED module lamps, a large number of LED modules are arranged over a large area, resulting in a relatively high cost.
[0004] To achieve the above object, the taillight device for a vehicle proposed by the utility model includes a mounting plate, a light-emitting module, and an inner lamp cover. The mounting plate is installed at the rear of the vehicle; the light-emitting module is connected to the side of the mounting plate facing away from the vehicle; the light-emitting module is externally covered with the inner lamp cover. The inner lamp cover includes a diffusion layer and a Fresnel lens layer arranged in a stacked manner. Among them, the Fresnel lens layer is connected to the side of the mounting plate facing away from the vehicle. The side of the Fresnel lens layer facing away from the vehicle forms a mounting surface. The diffusion layer is formed on the mounting surface, and the diffusion layer matches the shape of the mounting surface and is mutually attached thereto. The Fresnel lens layer is used to converge the light emitted by the light-emitting module and project the light onto the diffusion layer, and the diffusion layer is used to diffuse the light outside the vehicle.
[0005] In one embodiment, the middle part of the inner lamp cover is recessed towards the direction close to the light-emitting module to form a recessed part. The light-emitting module is arranged corresponding to the recessed part, and the periphery of the recessed part extends towards the direction away from the light-emitting module to form an unfolded part.
[0006] In one embodiment, a fitting surface is formed on the side of the diffusion layer facing the Fresnel lens layer, and the fitting surface is used to mutually attach to the mounting surface. A diffusion surface is formed on the side of the diffusion layer facing away from the Fresnel lens layer, and the diffusion surface is provided with diffusion patterns for diffusing the light.
[0007] In one embodiment, the number of the diffusion patterns is multiple. Each of the diffusion patterns extends along a first direction, and the multiple diffusion patterns are arranged at intervals along a second direction. Moreover, the multiple diffusion patterns are gradually and densely distributed from the recessed portion to the unfolded portion. The diffusion layer and the Fresnel lens layer are stacked along a third direction, and the first direction, the second direction, and the third direction are different from each other.
[0008] In one embodiment, an installation area is formed at the edge of the unfolded portion. A screw installation post is arranged on one side of the installation area facing the installation plate, and the inner lamp housing is fastened to the installation plate by screws mounted on the screw installation posts.
[0009] In one embodiment, the installation surface is a toothed surface with tooth patterns engraved thereon, and the surface of the Fresnel lens layer facing away from the diffusion layer is a smooth surface.
[0010] In one embodiment, installation holes are formed in the installation plate. The light-emitting module is in plug-in fit with the installation holes, and the light-emitting end of the light-emitting module faces the Fresnel lens layer.
[0011] In one embodiment, the tail lamp device further includes an outer lamp housing, and the outer lamp housing is covered on one side of the inner lamp housing facing the outside of the vehicle.
[0012] In one embodiment, the light-emitting module is an LED module.
[0013] The present utility model further provides a vehicle, which is applied with the above-mentioned tail lamp device.
[0014] For the tail lamp device and the vehicle provided by the present utility model, the light emitted by the light-emitting module is aggregated by the Fresnel lens layer, and the aggregated light is diffused to the outside of the vehicle through the diffusion layer. Through the synergistic effect of the Fresnel lens layer and the diffusion layer, the light is diffused after aggregation, which can effectively reduce the light loss during the process of the light being transmitted from the Fresnel lens layer to the diffusion layer, so as to improve the diffusion effect of the diffusion layer and achieve the large-range diffusion of the vehicle tail light. As a result, the visual effect of large-range light emission can be achieved with a smaller number of light-emitting modules, effectively saving costs. It should be noted that the Fresnel lens layer and the diffusion layer are arranged in close contact with each other, which can further reduce the light loss during the process of the light being transmitted from the Fresnel lens layer to the diffusion layer, increase the efficiency and uniformity of the light emitted outside the vehicle, and improve the light-emitting effect of the tail lamp device. Description of the Drawings
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0016] Figure 1 FIG. 4 is a schematic structural diagram of an embodiment of the taillight device provided by the present invention;
[0017] Figure 2 FIG. 8 is a schematic structural diagram of an embodiment of the light-emitting module and the mounting plate in the taillight device provided by the present invention;
[0018] Figure 3 FIG. 12 is a schematic cross-sectional structural diagram of an embodiment of the taillight device provided by the present invention;
[0019] Figure 4 FIG. 16 is a schematic cross-sectional structural diagram of an embodiment of a partial structure in the taillight device provided by the present invention.
[0020] Explanation of the reference numerals in the drawings:
[0021] 10. Mounting plate; 11. Mounting hole; 20. Light-emitting module; 30. Inner lamp cover; 31. Concave part; 32. Expanding part; 33. Diffusion pattern; 34. Screw mounting post; 35. Screw.
[0022] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. Detailed implementation manners
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0025] In addition, if descriptions such as "first", "second", etc. are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0026] In vehicle tail lights, LED module lights often have the problem of concentrated light-emitting areas and cannot achieve the visual effect of large-area light emission. To achieve the large-area light emission effect of LED module lights, the usual method is to arrange a large number of LED modules over a large area, which results in a relatively high cost for the tail lights due to the increase in the number of LED modules.
[0027] The present utility model provides a tail light device for a vehicle, which includes a mounting plate 10, a light-emitting module 20, and an inner lamp cover 30. The mounting plate 10 is installed at the rear of the vehicle; the light-emitting module 20 is connected to the side of the mounting plate 10 facing away from the vehicle; an inner lamp cover 30 is provided outside the light-emitting module 20. The inner lamp cover 30 includes a diffusion layer and a Fresnel lens layer arranged in a stacked manner. Among them, the Fresnel lens layer is connected to the side of the mounting plate 10 facing away from the vehicle, and the side of the Fresnel lens layer facing away from the vehicle forms a mounting surface. The diffusion layer is formed on the mounting surface, and the diffusion layer matches the shape of the mounting surface and fits with each other. The Fresnel lens layer is used to converge the light emitted by the light-emitting module 20 and project the light onto the diffusion layer, and the diffusion layer is used to diffuse the light outside the vehicle.
[0028] Please refer to Figure 1 , the light-emitting module 20 and the inner lamp cover 30 are connected to the side of the mounting plate 10 facing away from the vehicle to be installed at the rear of the vehicle. The side of the inner lamp cover 30 facing the vehicle is the Fresnel lens layer, and the side facing away from the vehicle is the diffusion layer. The side of the Fresnel lens layer facing the diffusion layer forms a mounting surface, and the diffusion layer fits with the mounting surface. The light-emitting end of the light-emitting module 20 is arranged facing the Fresnel lens layer. Since the Fresnel lens has a light-concentrating effect, when the light emitted by the light-emitting module 20 is projected onto the Fresnel lens layer, it can be converged under the action of the Fresnel lens, and the light is projected onto the diffusion layer in the same direction. The diffusion layer diffuses the light and projects it outside the vehicle, thereby making the vehicle tail light visible.
[0029] The taillight device of a vehicle proposed by the present utility model aggregates the light emitted by the light-emitting module 20 through the Fresnel lens layer, diffuses the aggregated light to the outside of the vehicle through the diffusion layer. Through the synergistic effect of the Fresnel lens layer and the diffusion layer, the light is diffused after aggregation, which can effectively reduce the light loss during the transmission of the light from the Fresnel lens layer to the diffusion layer, so as to improve the diffusion effect of the diffusion layer, realize the large-range diffusion of the taillight of the vehicle, and thus achieve the visual effect of large-range light emission with a smaller number of light-emitting modules 20, effectively saving costs. It should be noted that the Fresnel lens layer and the diffusion layer are arranged in a mutually attached manner, which can further reduce the light loss during the transmission of the light from the Fresnel lens layer to the diffusion layer, increase the efficiency and uniformity of the light emitted outside the vehicle, and improve the light-emitting effect of the taillight device.
[0030] In one embodiment, the middle part of the inner lamp cover 30 is recessed towards the direction close to the light-emitting module 20 to form a recessed part 31. The light-emitting module 20 is arranged corresponding to the recessed part 31, and the periphery of the recessed part 31 extends towards the direction away from the light-emitting module 20 to form an unfolded part 32.
[0031] Please refer to Figure 1 , the recessed part 31 is recessed towards the light-emitting module 20, so that the light-emitting end of the light-emitting module 20 is as close as possible to the recessed part 31, and the light emitted by the light-emitting module 20 can be more effectively emitted to the inner lamp cover 30, reducing the light loss during the propagation process. The periphery of the recessed part 31 extends towards the direction away from the light-emitting module 20, effectively increasing the diffusion range of the light, thereby achieving the visual effect of large-range light emission. It should be noted that the Fresnel lens layer and the diffusion layer are mutually attached, the middle parts of the Fresnel lens layer and the diffusion layer are both located in the recessed part 31, and the edges are both located in the unfolded part 32.
[0032] In one embodiment, a fitting surface is formed on the side of the diffusion layer facing the Fresnel lens layer. The fitting surface is used to fit with the installation surface. A diffusion surface is formed on the side of the diffusion layer facing away from the Fresnel lens layer, and diffusion patterns 33 for diffusing light are arranged on the diffusion surface.
[0033] It can be understood that the side of the diffusion layer facing the vehicle is the fitting surface, and the side of the Fresnel lens layer facing away from the vehicle is the installation surface. The fitting surface and the installation surface are mutually attached, so that the diffusion layer and the Fresnel lens layer are firmly connected, and the light aggregated by the Fresnel lens layer can be smoothly transmitted to the diffusion surface, reducing the light loss during the transmission process. The side of the diffusion layer facing away from the vehicle is the diffusion surface, and the surface of the diffusion patterns 33 on the diffusion surface is uneven, which can effectively diffuse the light in all directions and increase the diffusion range of the light. In one embodiment, the materials of the diffusion layer and the Fresnel lens layer are the same, further reducing the light loss during the transmission process and improving the light diffusion effect.
[0034] In one embodiment, the number of diffusion patterns 33 is multiple. Each diffusion pattern 33 extends in a first direction. The multiple diffusion patterns 33 are arranged at intervals in a second direction, and the multiple diffusion patterns 33 are gradually denser from the concave portion 31 to the unfolding portion 32. The diffusion layer and the Fresnel lens layer are stacked in a third direction. The first direction, the second direction, and the third direction are different from each other.
[0035] Further, please refer to Figure 1 and Figure 2 , the diffusion pattern 33 is strip-shaped, and light can diverge along the extending direction of the diffusion pattern 33. The extending direction of each diffusion pattern 33 is perpendicular to the interval direction of the multiple diffusion patterns 33, and the multiple diffusion patterns 33 are gradually denser from the concave portion 31 to the unfolding portion 32, which helps the unfolding portion 32 to diffusely spread the light more uniformly and effectively, and effectively increases the diffusion range of the light.
[0036] In one embodiment, an installation area is formed at the edge of the unfolding portion 32. A screw installation post 34 is provided on one side of the installation area facing the installation plate 10. The inner lamp cover 30 is fastened to the installation plate 10 by a screw 35 installed on the screw installation post 34.
[0037] Please refer to Figure 3 and Figure 4 , multiple screw installation posts 34 facing the installation plate 10 are provided in the installation area. Each screw installation post 34 is correspondingly provided with a screw 35. Each screw 35 passes through the inner lamp cover 30 and is installed on the corresponding screw installation post 34 to fasten the inner lamp cover 30 to the installation plate 10, facilitating the quick disassembly and assembly of the inner lamp cover 30.
[0038] In one embodiment, the installation surface is a toothed surface with tooth patterns engraved on it. The surface of the Fresnel lens layer facing away from the diffusion layer is a smooth surface. It can be understood that the Fresnel lens layer can converge the light rays incident on the smooth surface from multiple directions and make the converged light rays exit from the toothed surface in the same direction. The fitting surface of the diffusion layer matches the shape of the tooth patterns on the toothed surface to closely fit with the toothed surface, realizing the tight connection between the Fresnel lens layer and the diffusion layer.
[0039] In one embodiment, an installation hole 11 is provided on the installation plate 10. The light-emitting module 20 is inserted and matched with the installation hole 11, and the light-emitting end of the light-emitting module 20 faces the Fresnel lens layer.
[0040] Please refer to Figure 3, the mounting hole 11 is formed in the middle of the mounting plate 10, and the screw 35 passes through the edge of the mounting plate 10. When the light-emitting module 20 is inserted into the mounting hole 11, the light-emitting module 20 is arranged corresponding to the polymerization part of the inner lamp cover 30, so that the light-emitting end of the light-emitting module 20 is close to the polymerization part, ensuring that the light is transmitted to the inner lamp cover 30 more effectively. It can be explained that a clamping groove is formed around the mounting hole 11, and a clamping buckle for clamping and cooperating with the clamping groove is arranged on the side wall of the light-emitting module 20, so as to ensure the stable connection between the light-emitting module 20 and the mounting plate 10 when the light-emitting module 20 is inserted into the mounting hole 11, which is convenient for loading and unloading.
[0041] In an embodiment, the tail lamp device further includes an outer lamp cover, and the outer lamp cover covers the side of the inner lamp cover 30 facing the outside of the vehicle. It can be understood that the outer lamp cover is connected to the mounting plate 10, the outer lamp cover is arranged on the side of the inner lamp cover 30 facing away from the vehicle, and the inner lamp cover 30 and the light-emitting module 20 are covered inside the outer lamp cover to provide protection for the inner lamp cover 30 and the light-emitting module 20 and prevent pollutants in the external environment from entering the tail lamp device.
[0042] In an embodiment, the light-emitting module 20 is an LED module.
[0043] It should be noted that when the light-emitting module 20 is an LED module, the number of LED modules can be single. Through the tail lamp device proposed by the present invention, the light of a single LED module can be polymerized and then diffused, so that the light emitted by a single LED module can be effectively diffused, reducing the cost of the vehicle tail lamp device.
[0044] The present invention also provides a vehicle, which includes the above-mentioned tail lamp device. The specific structure of the tail lamp device refers to the above embodiments. Since this vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the tail lamp device is installed at the rear of the vehicle. The light emitted by the light-emitting module 20 is polymerized and then diffused through the inner lamp cover 30, so as to achieve the visual effect of large-range light emission with a smaller number of light-emitting modules 20, effectively saving costs.
[0045] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A taillight device for a vehicle, characterized in that, Comprising: A mounting plate which is mounted on the rear of the vehicle; A light-emitting module which is connected to the side of the mounting plate facing away from the vehicle; An inner lamp cover, the light-emitting module is externally covered with the inner lamp cover, the inner lamp cover includes a diffusion layer and a Fresnel lens layer arranged in a stacked manner. Wherein, the Fresnel lens layer is connected to the side of the mounting plate facing away from the vehicle, the side of the Fresnel lens layer facing away from the vehicle forms a mounting surface, the diffusion layer is formed on the mounting surface, and the diffusion layer matches the shape of the mounting surface and fits with each other. The Fresnel lens layer is used to converge the light emitted by the light-emitting module and project the light towards the diffusion layer, and the diffusion layer is used to diffuse the light outside the vehicle.
2. The taillight device of a vehicle according to claim 1, characterized in that, The middle part of the inner lamp cover is recessed towards the direction close to the light-emitting module to form a recessed part, the light-emitting module is arranged corresponding to the recessed part, and the periphery of the recessed part extends towards the direction away from the light-emitting module to form an unfolded part.
3. The taillight device of a vehicle according to claim 2, wherein, The side of the diffusion layer facing the Fresnel lens layer forms a fitting surface for fitting with the mounting surface, the side of the diffusion layer facing away from the Fresnel lens layer forms a diffusion surface, and the diffusion surface is provided with diffusion patterns for diffusing the light.
4. The tail lamp device of a vehicle according to claim 3, characterized in that, The number of the diffusion patterns is multiple, each of the diffusion patterns extends along a first direction, the multiple diffusion patterns are arranged at intervals along a second direction, and the multiple diffusion patterns are gradually denser from the recessed part to the unfolded part; the diffusion layer and the Fresnel lens layer are stacked along a third direction, and the first direction, the second direction and the third direction are different from each other.
5. The taillight device of a vehicle according to claim 2, characterized in that, The edge of the unfolded part forms a mounting area, a screw mounting post is arranged on the side of the mounting area facing the mounting plate, and the inner lamp cover is fastened to the mounting plate by screws mounted on the screw mounting posts.
6. The taillight device of a vehicle according to any one of claims 1 to 5, characterized in that, The mounting surface is a toothed surface, tooth patterns are engraved on the toothed surface, and the surface of the Fresnel lens layer facing away from the diffusion layer is a smooth surface.
7. The taillight device of a vehicle according to any one of claims 1 to 5, characterized in that, Mounting holes are formed on the mounting plate, the light-emitting module is in plug-in fit with the mounting holes, and the light-emitting end of the light-emitting module faces the Fresnel lens layer.
8. The tail lamp device of a vehicle according to any one of claims 1 to 5, characterized in that, The tail lamp device further includes an outer lamp cover, and the outer lamp cover covers the side of the inner lamp cover facing outside the vehicle.
9. The tail lamp device of a vehicle according to any one of claims 1 to 5, characterized in that, The light-emitting module is an LED module.
10. A vehicle, characterized in that, A tail lamp device according to any one of claims 1 to 9 is applied.