Vehicle tail lamp device

Abstract

The utility model discloses a vehicle tail lamp device which comprises a shell with an opening in the front side, a lampshade covering the opening of the shell, a support assembly arranged in the shell, a light source connected with the support assembly and a light guide assembly connected with the light source. The support assembly comprises an upper substrate and a reflecting bowl located below the upper substrate, the support assembly is provided with an opening facing the lampshade, a black coating is arranged on the lower surface of the upper substrate, and a reflecting layer is arranged on the upper surface of the reflecting bowl. According to the vehicle tail lamp, on the premise that the lampshade is kept transparent, the black coating of the upper substrate is reflected through the reflecting layer of the reflecting bowl in the support assembly, so that the vehicle tail lamp shows the overall blackening effect under the condition that the vehicle tail lamp is not turned on, and when the vehicle tail lamp is turned on, the transparent lampshade can prevent a lighting dark area from occurring, and the light-emitting effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle tail light structure technical field especially relates to a vehicle tail light device. BACKGROUND

[0002] In the design of automobile lamps, the fumigation blackening treatment as a fashionable and unique appearance design element is increasingly favored by the market. However, the traditional fumigation blackening technology generally fumigates the lampshade black, or fumigates the inside of the vehicle lamp black, often faces technical problems such as obvious dark area, uneven light emission, especially in the design of vehicle tail light device.

[0003] The existing vehicle tail light structure mainly has two kinds, one of which is a light guide type structure, and the vehicle tail light is completed by a long light guide and a small amount of lamp at both ends; the other is a flat type structure, a large number of LED lamps are evenly arranged on the entire transverse length of the tail door or trunk lid, and the lighting of each function is completed.

[0004] Among them, the light guide type structure has less LED lamps, lower cost, but it is not easy to form a wide area light emitting modeling, and the light emitting intensity of the middle part of the light guide is difficult to keep flat with both ends, and the intuitive feeling when lighting is that the middle part of the vehicle is dark. If combined with the fumigation blackening design of the vehicle tail light, the fumigation blackened vehicle tail light combined with the existing light guide type structure of the vehicle tail light will more easily produce a dark area, thereby affecting the overall visual effect and light emitting effect of the vehicle tail light. INVENTION CONTENTS

[0005] The utility model aims at overcoming the deficiency that the existing fumigation blackening vehicle tail light technology is easy to produce a dark area, and provides a vehicle tail light device, which improves the support inside, reflects the black coating of the upper substrate through the reflection layer of the reflector bowl in the support assembly, so that the vehicle tail light presents a whole fumigation blackening effect in the unopened state, and the transparent lampshade can prevent the appearance of a dark area when the vehicle tail light is turned on, ensuring the light emitting effect, and further improving the light emitting uniformity and brightness of the vehicle tail light by setting the light guide assembly.

[0006] The utility model technical scheme provides a vehicle tail light device, which comprises a shell with an opening on the front side, a lampshade covering the opening of the shell, a support assembly arranged in the shell, a light source connected with the support assembly and a light guide assembly connected with the light source.

[0007] The support assembly comprises an upper substrate and a reflector bowl located below the upper substrate, the support assembly has an opening facing the direction of the lampshade, the lower surface of the upper substrate is provided with a black coating, and the upper surface of the reflector bowl is provided with a reflection layer.

[0008] In an optional technical solution, the light guide assembly comprises a light guide arranged on the inner wall of the bracket assembly and a thick wall member covering the opening of the bracket assembly.

[0009] In an optional technical solution, the surface of the thick wall member is provided with light guide patterns to improve light beam utilization.

[0010] In an optional technical solution, the light guide patterns on the front surface of the thick wall member facing the lampshade are triangular lines, and / or the light guide patterns on the rear surface of the thick wall member are spherical patterns.

[0011] In an optional technical solution, the thick wall member is a curved plate structure, and the minimum bending radius of the thick wall member is 100 mm.

[0012] In an optional technical solution, the front end of the upper substrate and the front end of the reflector bowl are respectively provided with outer decorative rings, and the upper end and the lower end of the thick wall member are respectively clamped with the outer decorative rings.

[0013] In an optional technical solution, the front end of the upper substrate and the front end of the reflector bowl are respectively provided with outer decorative rings, and the upper end and the lower end of the thick wall member are respectively clamped with the outer decorative rings.

[0014] In an optional technical solution, the light guide comprises two integrally formed and side-by-side arranged tubular light guides.

[0015] In an optional technical solution, the bracket assembly comprises a position lamp bracket, a brake lamp bracket and a turn signal lamp bracket arranged in sequence from top to bottom.

[0016] In an optional technical solution, the position lamp bracket is provided with a light guide and a thick wall member, and the brake lamp bracket is provided with another thick wall member.

[0017] The above technical solution has the following beneficial effects:

[0018] The vehicle tail lamp device provided by the utility model has the following beneficial effects: the black coating of the upper substrate is reflected by the reflecting layer of the reflector bowl in the bracket assembly, the vehicle tail lamp device as a whole appears to be smoked black through the local black inner wall and the reflecting relationship under the condition that the vehicle tail lamp is not turned on, the lampshade can be kept transparent or light-colored while keeping beautiful, so as to ensure the light emitting effect of the vehicle tail lamp; when the vehicle tail lamp is turned on, the reflecting layer can reflect the light inside outward, the bracket can concentrate the light, the lampshade which is not subjected to the smoking black treatment can prevent the appearance of the dark illumination area, so as to ensure the overall light emitting effect of the vehicle tail lamp device; the light guide assembly is further arranged, the diffusion effect in the bracket is further improved, and the illumination uniformity and the illumination intensity of the vehicle tail lamp are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosure will become more readily understood by reference to the accompanying drawings. It should be understood that these drawings are only for purposes of illustration and are not intended to limit the scope of the present application. In the drawings:

[0020] Figure 1 A side sectional view of a vehicle tail lamp device according to an embodiment of the present application;

[0021] Figure 2 A top view of a thick-walled part according to an embodiment of the present application;

[0022] Figure 3 A ray refraction diagram of a thick-walled part according to an embodiment of the present application;

[0023] Figure 4 A front partial view of a thick-walled part according to an embodiment of the present application;

[0024] Figure 5 A partial view of a light guide assembly according to an embodiment of the present application.

[0025] Reference numerals in the drawings:

[0026] 1. A housing;

[0027] 2. A lampshade;

[0028] 3. A support assembly; 31. An upper substrate; 311. A black coating; 32. A reflector bowl; 321. A reflection layer; 33. An outer trim ring; 34. An inner trim ring;

[0029] 4. A light source;

[0030] 5. A light guide assembly; 51. A light guide; 52. A thick-walled part; 521. Triangular scale lines; 522. Spherical patterns. DETAILED DESCRIPTION

[0031] The specific embodiments of the present application will be further described with reference to the accompanying drawings. Identical parts are denoted by identical reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions toward or away from the geometric center of a particular part.

[0032] In the utility model, unless another definite provision and limitation, the term "fixed" and the like should do the broad sense understanding, for example, "fixed" can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless another definite limitation, for the ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0033] As Figure 1 The utility model discloses an embodiment provides a vehicle tail light device, including the shell 1 with the opening of front side, the lamp shade 2 covering the opening of shell 1, the support assembly 3 being arranged in shell 1, the light source 4 being connected with support assembly 3 and the light guide assembly 5 being connected with light source 4. Support assembly 3 includes upper substrate 31 and the light bowl 32 below upper substrate 31, support assembly 3 has the opening of the direction of facing lamp shade 2, and the lower surface of upper substrate 31 is equipped with black coating 311, and the upper surface of light bowl 32 is equipped with reflection layer 321.

[0034] Wherein, the basic structure of vehicle tail light device includes a shell 1 with an opening in the front side, which is used to accommodate and protect the internal components. A transparent lamp shade 2 is covered on the shell 1, which is tightly fitted at the opening of the shell 1 to prevent moisture and dust from entering, while allowing light to pass out. In the shell 1, a support assembly 3 is provided, which is composed of at least one upper substrate 31 and one light bowl 32, forming a stable support structure. The side ends of the upper substrate 31 and the light bowl 32 can be connected to form an opening in the same direction as the opening of the shell 1. The light source 4 is connected with the support assembly 3 and guides the light to different areas of the tail light through the light guide assembly 5. If the vehicle tail light device is a light guide type structure, for example, in the tail light area and brake light area, the light source 4 is arranged at the side end of the shell 1 and the light guide assembly 5, and the light is uniformly guided into the entire vehicle tail light device through the light guide assembly 5. If the vehicle tail light device is a flat type structure, for example, in the steering light area, the light source 4 is evenly laid in the inner side away from the opening of the support assembly 3. By providing a black coating 311 on the lower surface of the upper substrate 31, the black coating 311 is made by blackening treatment to cooperate with the reflection layer 321 provided on the upper surface of the light bowl 32, realizing the effect of observing the vehicle tail light assembly as a whole blackening from the outside. The reflection layer 321 is made by aluminum plating treatment, and at this time, the lamp shade 2 does not need to be blackened, so as to improve the light utilization rate and lighting effect.

[0035] As preferred, as Figure 1As shown, the support assembly 3 includes a position lamp support, a brake lamp support and a turn signal lamp support stacked from top to bottom. The position lamp support includes a first upper base plate 31 and a first reflector bowl 32, the brake lamp support includes a second upper base plate 31 and a second reflector bowl 32, and the turn signal lamp support includes a third upper base plate 31 and a third reflector bowl 32. The position lamp support, the brake lamp support and the turn signal lamp support can share part of the base plate, and the upper base plate 31 in each support can be a plate body made of black material, which is bent to form a support structure. The position lamp support, the brake lamp support and the turn signal lamp support form independent tail lamp area, brake lamp area and turn signal lamp area respectively. Among them, the tail lamp area and the brake lamp area adopt a light guide type structure, and the turn signal lamp area adopts a flat type structure. The light guide assembly can be arranged only in the position lamp support and the brake lamp support, and a small number of LED lamps are arranged on both sides of the light guide assembly as light sources 4. The turn signal lamp area with higher brightness requirement is flatly arranged with a large number of LED lamps as light sources 4 on the rear side of the turn signal lamp support.

[0036] The materials of the shell 1 and the lampshade 2 can be selected according to cost, light transmittance and durability, such as high light transmittance glass or reinforced plastic. The materials, area and thickness of the black coating 311 and the reflective layer 321 can also be adjusted according to specific functional requirements to achieve the best visual effect and lighting performance.

[0037] In summary, the vehicle tail lamp device provided by the embodiment of the utility model has the advantages that the reflective layer 321 of the reflector bowl 32 in the support assembly 3 reflects the black coating 311 of the upper base plate 31. In the case that the vehicle tail lamp is not turned on, the vehicle tail lamp device as a whole appears to be blackened by the local black inner wall and the reflection relationship. While maintaining the appearance, the lampshade 2 can also remain transparent or light-colored. The basic structural design is reasonable, which ensures the stability and sealing performance of the tail lamp device, optimizes the light distribution of the vehicle tail lamp device after blackening treatment, and improves the lighting effect.

[0038] In addition, when the vehicle tail lamp is turned on, the reflective layer 321 can reflect the internal light outward, so that the support plays a role in light gathering, and the lampshade 2 without blackening treatment can prevent the occurrence of dark illumination area, thereby ensuring the overall lighting effect of the vehicle tail lamp device. By arranging the light guide assembly 5, the diffusion effect in the support is further improved, so as to improve the lighting uniformity and light intensity of the vehicle tail lamp.

[0039] In one embodiment, as shown in Figure 1 The light guide assembly 5 includes a light guide member 51 arranged on the inner wall of the support assembly 3 and a thick wall member 52 covering the opening of the support assembly 3.

[0040] In this embodiment, the composition of the light guide assembly 5 is further clarified, specifically, the light guide assembly 5 includes a light guide 51 arranged on the inner wall of the bracket assembly 3 and a thick wall piece 52 covering the opening of the bracket assembly 3. The light guide 51 is responsible for guiding the light emitted by the light source 4 to different areas of the tail lamp, while the thick wall piece 52 plays a role in enhancing light scattering and distribution, optimizing light guidance, and improving the brightness and uniformity of each functional area of the vehicle tail lamp. The shape, number and arrangement of the light guide 51 can be designed according to specific lighting needs. The material, thickness and surface treatment of the thick wall piece 52 can also be adjusted as needed to optimize light distribution and visual effects. The composition of the light guide assembly 5 enables light to be more evenly distributed in each functional area of the tail lamp, improving lighting effects and visual aesthetics.

[0041] In one embodiment, as shown in Figure 2 The surface of the thick wall piece 52 is provided with light guide patterns to improve light beam utilization. Further, the light guide patterns on the front surface of the thick wall piece 52 facing the lampshade 2 are triangular lines 521, and the light guide patterns on the back surface of the thick wall piece 52 are spherical patterns 522. In other embodiments of the present application, the triangular lines 521 or spherical patterns 522 provided on the surface of the thick wall piece 52 can be provided on the front surface or back surface of the thick wall piece 52.

[0042] In this embodiment, the structure of the thick wall piece 52 is further optimized, and light guide pattern structures are provided on the surface of the thick wall piece 52 to improve light beam utilization. Specifically, as shown in Figure 4 The end of the thick wall piece 52 connected to the light source 4 is provided with a horn-shaped light inlet, which can effectively focus and reflect light inside the thick wall piece 52 to improve light beam utilization, and can increase the light utilization rate of the light source 4 to 40%. As shown in Figure 3 The triangular lines 521 and spherical patterns 522 are provided on the front surface and back surface of the thick wall piece 52, respectively, which can reflect and refract the light beam passing through the inside of the thick wall piece 52 multiple times through the matching triangular lines 521 and spherical patterns 522, so that the light beam can pass through the inside of the thick wall piece 52 in a sufficient flow, to improve the utilization rate of the light emitted by the light source 4, and further improve the scattering and distribution effect of the light. By optimizing the surface treatment of the thick wall piece 52, the light source can ensure the lighting state of the vehicle tail lamp at different angles, the double patterns present a three-dimensional effect, which can also increase the aesthetics of the vehicle tail lamp, and further improve the utilization rate of the light and the lighting effect, so that the vehicle tail lamp is more eye-catching and clear at night or in bad weather conditions.

[0043] According to the use requirements, the shape, size and arrangement of the light guide patterns can be adjusted according to specific requirements. In addition, microstructure or nanotechnology can also be considered to optimize the surface treatment of the thick-walled part 52. For example, in the tail lamp area where diffuse reflection is required, fisheye patterns and skin patterns can be arranged on the surface of the thick-walled part 52 to achieve the corresponding diffuse reflection tail lamp lighting effect.

[0044] In one embodiment, as shown in Figure 2 and Figure 3 , the thick-walled part 52 is a curved plate structure, and the minimum bending radius of the thick-walled part 52 is 100mm.

[0045] In this embodiment, the thick-walled part 52 is bent to better adapt to different modeling requirements of the tail lamp while maintaining the stability and aesthetics of the structure, and further improving the scattering and distribution effect of light. The size of the bending radius of the thick-walled part 52 can be adjusted according to specific design requirements. In addition, other shapes and structures can also be considered to replace the curved plate structure to meet different application scenarios.

[0046] In one embodiment, as shown in Figure 1 , the front end of the upper substrate 31 and the front end of the reflector bowl 32 are respectively provided with an outer trim ring 33, and the upper end and the lower end of the thick-walled part 52 are respectively connected with the outer trim ring 33. Further, the front end of the upper substrate 31 and the front end of the reflector bowl 32 are provided with an inner trim ring 34 between the outer trim ring 33.

[0047] In this embodiment, the front end of the upper substrate 31 and the front end of the reflector bowl 32 are respectively provided with an outer trim ring 33, and the upper end and the lower end of the thick-walled part 52 are respectively connected with the outer trim ring 33 to achieve stable connection. In addition, an inner trim ring 34 is arranged between the outer trim ring 33 and the upper substrate 31 and the reflector bowl 32 to increase the aesthetics, the inner trim ring 34 can shield the buckle or welding slag, and the light guide patterns of the thick-walled part 52 are reversely welded on the inner trim ring 34 by ultrasonic welding, so that the inner trim ring 34 is turned over to shield the welding ribs, and the defects inside the vehicle tail lamp device such as welding slag cannot be seen when the vehicle tail lamp is not lit, but it does not affect the lighting effect when the vehicle tail lamp is lit. The material, shape and size of the outer trim ring 33 and the inner trim ring 34 can be selected and designed according to specific requirements. In addition, other connection methods such as screw fixation and adhesion can also be considered to replace the outer trim ring 33 connection.

[0048] In one embodiment, as shown in Figure 1 and Figure 5 , the light guide 51 includes two integrally formed and side-by-side arranged tubular light guides.

[0049] In this embodiment, the structure of the light guide 51 is improved to enable the light to be uniformly propagated and distributed to different areas of the tail lamp along the double-layered tubular light guide. The number, shape and arrangement of the tubular light guide can be adjusted according to specific lighting requirements. In addition, other types of light guides 51 such as flat light guides, optical fibers, etc. can also be considered to replace the tubular light guide. The structure design of the tubular light guide enables the light to propagate more uniformly and efficiently, improving the lighting effect and visual effect of the tail lamp.

[0050] In one embodiment, as shown in Figure 1 The light guide 51 and a thick wall member 52 are arranged in the position lamp bracket, and another thick wall member 52 is arranged in the brake lamp bracket. The upper end and the lower end of the two thick wall members 52 are connected with the outer trim ring 33, and the connection modes include but are not limited to buckling, ultrasonic welding, and two-color integral molding.

[0051] In this embodiment, the position lamp bracket, the brake lamp bracket and the turn signal lamp bracket are stacked from top to bottom, which not only enables different light sources 4 to be arranged in order and controlled independently, but also improves the compactness and stability of the overall structure. At the same time, the light guide 51 and the thick wall member 52 can be selectively arranged in the position lamp bracket and the brake lamp bracket to optimize the lighting effect.

[0052] According to the needs, the above technical solutions can be combined to achieve the best technical effect.

[0053] The above is only the principle and preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, on the basis of the principle of the present application, a number of other variants can also be made, which should be considered as the protection scope of the present application.

Claims

1. A vehicle taillight device, characterized in that, It includes a housing (1) with an opening on the front side, a lampshade (2) covering the opening of the housing (1), a bracket assembly (3) disposed in the housing (1), a light source (4) connected to the bracket assembly (3), and a light guide assembly (5) connected to the light source (4); The bracket assembly (3) includes an upper substrate (31) and a reflector bowl (32) located below the upper substrate (31). The bracket assembly (3) has an opening facing the lampshade (2). The lower surface of the upper substrate (31) is provided with a black coating (311), and the upper surface of the reflector bowl (32) is provided with a reflective layer (321).

2. The vehicle taillight device according to claim 1, characterized in that, The light guide assembly (5) includes a light guide (51) disposed on the inner wall of the bracket assembly (3) and a thick-walled member (52) covering the opening of the bracket assembly (3).

3. The vehicle taillight device according to claim 2, characterized in that, The surface of the thick-walled component (52) is provided with a light guide pattern to improve the utilization rate of the light beam.

4. The vehicle taillight device according to claim 3, characterized in that, The light guide pattern on the front surface of the thick-walled member (52) facing the lampshade (2) is a triangular etched line (521), and / or the light guide pattern on the rear surface of the thick-walled member (52) is a spherical pattern (522).

5. The vehicle taillight device according to claim 4, characterized in that, The thick-walled component (52) is a curved plate structure, and the minimum bending radius at each point on the thick-walled component (52) is 100 mm.

6. The vehicle taillight device according to claim 3, characterized in that, The front end of the upper substrate (31) and the front end of the reflector bowl (32) are respectively provided with an outer decorative ring (33). The upper end and the lower end of the thick-walled part (52) are respectively engaged with the outer decorative ring (33), or the two are welded together by ultrasonic welding.

7. The vehicle taillight device according to claim 6, characterized in that, An inner ring (34) is provided between the front end of the upper substrate (31) and the front end of the reflector bowl (32) and the outer trim ring (33).

8. The vehicle taillight device according to claim 2, characterized in that, The light guide (51) includes two integrally formed tubular light guides arranged side by side.

9. The vehicle taillight device according to any one of claims 2-8, characterized in that, The bracket assembly (3) includes a position light bracket, a brake light bracket and a turn light bracket stacked from top to bottom.

10. The vehicle taillight device according to claim 9, characterized in that, The position light bracket is provided with a light guide (51) and a thick-walled member (52), and the brake light bracket is provided with another thick-walled member (52).

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