Matching structure of tail lamp and automobile

By using the mating structure of the gradually expanding stop and the cover plate, the problem of excessive light gap in the split taillight is solved, achieving improvements in aesthetics and light efficiency, and ensuring that the welding surface is effectively shielded.

CN224080035UActive Publication Date: 2026-04-03GAC TOYOTA MOTOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In split taillights, the gap between the body taillights and the tailgate taillights is too large, which affects the aesthetics and makes it difficult to effectively cover the welding points.

Method used

The gradually expanding stop section and cover plate are used to cover the welding seam. The design of the gradually expanding stop section and cover plate of the body taillight and tailgate taillight reduces the light emission gap and hides the welding surface. The thick-walled parts are used to ensure uniform light diffusion.

Benefits of technology

It effectively reduces the light-emitting gap, improves the aesthetics and visual continuity of the taillights, while maintaining the uniformity of light effect and the stability of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a taillight matching structure which comprises a vehicle body taillight and a tailgate taillight, the vehicle body taillight comprises a vehicle body lamp shade, a vehicle body lamp shell and a vehicle body cover plate, the vehicle body lamp shade comprises a first shade body and a first stopping part, one end of the first stopping part is connected with the first shade body, and the first stopping part is arranged in a gradually expanding mode in the extending direction of the first stopping part. The automobile body cover plate shields a parting seam formed in the welding position of the first stopping part and the automobile body lamp shell. The tail door tail lamp comprises a tail door lampshade, a tail door lamp shell and a tail door cover plate, the tail door lampshade comprises a second lampshade body and a second stopping part, one end of the second stopping part is connected with the second lampshade body, the other end of the second stopping part is welded to the tail door lamp shell through a second welding rib, and the second stopping part is arranged in the extending direction of the second stopping part in a gradually-expanding mode. The tail door cover plate shields a parting seam formed at the welding position of the second stopping part and the tail door lamp shell. According to the automobile tail lamp, the light-emitting gap between the automobile body tail lamp and the tail door tail lamp can be reduced, meanwhile, the welding position is effectively shielded, and therefore the overall attractiveness is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a taillight assembly structure and an automobile. Background Technology

[0002] With the rapid development of automotive lighting technology and increasingly higher customer demands for the appearance of car lights, the design of automotive taillights is constantly being innovated and optimized. Automotive taillights include split taillights, which consist of body taillights and tailgate taillights. The body taillights are fixed in positions on the vehicle body, while the tailgate taillights are located on the tailgate. When the tailgate is closed, the body taillights and tailgate taillights visually form a unified whole. This design not only enhances the vehicle's aesthetics but also strengthens the functionality and visibility of the taillights.

[0003] However, because split taillights consist of body taillights and tailgate taillights, the two parts are structurally separate, mounted on the body and tailgate respectively. This results in a light-emitting gap between the body taillights and the tailgate taillights. The light-emitting gap refers to the distance between the light-emitting surfaces of the body taillights and the tailgate taillights. In existing technology, such as... Figure 1 As shown, the tailgate taillight 2' is formed by welding the tailgate taillight housing 21' and the tailgate taillight cover 22' to create a sealed space to prevent water from entering the tailgate taillight 2'. To conceal the weld, a tailgate cover is provided to cover the seam formed at the joint between the tailgate taillight housing 21' and the tailgate taillight cover 22', preventing the welded surface from being seen through the seam. Furthermore, a tailgate baffle 221' is provided at the end of the tailgate taillight cover 22' to prevent the weld from being directly visible from the rear. The structure of the body taillight 1' is similar to that of the tailgate taillight 2', and will not be described further here.

[0004] Due to the presence of the tailgate retaining rib 221' and the body retaining rib 121', the light-emitting gap between the body taillight 1' and the tailgate taillight 2' is relatively large. Removing the tailgate retaining rib 221' and the body retaining rib 121' would reduce the light-emitting gap, but it would also make the weld joint directly visible to the user, thus affecting the aesthetics of the taillights. Therefore, how to reduce the light-emitting gap between the body taillight 1' and the tailgate taillight 2' while ensuring the weld joint between the lamp housing and the lamp cover is properly concealed has become a pressing problem to be solved. Utility Model Content

[0005] The main purpose of this utility model is to propose a taillight matching structure and automobile, aiming to solve the problem of excessive light emission gap between the body taillight and the tailgate taillight in split taillights.

[0006] To achieve the above objectives, this utility model proposes a taillight assembly structure and a vehicle. The taillight assembly structure includes a body taillight and a tailgate taillight. The body taillight is mounted on the vehicle body and includes a body lamp cover, a body lamp housing, and a body cover. The body lamp cover includes a first cover and a first stop portion. One end of the first stop portion is connected to the first cover portion, and the other end of the first stop portion is welded to the body lamp housing via a first weld bead. The first stop portion extends from rear to front and gradually widens along its extension direction. One end of the body cover is positioned close to the first stop portion and... The first stop and the welded joint of the body light housing form a gap that is covered; the tailgate taillight is installed on the tailgate of the car, and the tailgate taillight includes a tailgate light cover, a tailgate light housing and a tailgate cover. The tailgate light cover includes a second cover and a second stop. One end of the second stop is connected to the second cover, and the other end of the second stop is welded to the tailgate light housing through a second weld bead. The second stop extends from back to front and is gradually widened along its extension direction. One end of the tailgate cover is located close to the second stop and covers the gap formed by the welded joint of the second stop and the tailgate light housing.

[0007] In one embodiment, the first weld bead is disposed near the inner side of the first stop portion, and the connection between the first weld bead and the first stop portion forms a first stepped surface, with one end of the vehicle body cover disposed near the first stepped surface.

[0008] In one embodiment, the second weld bead is disposed near the inner side of the second stop portion, and the connection between the second weld bead and the second stop portion forms a second stepped surface, with one end of the vehicle body cover disposed near the second stepped surface.

[0009] In one embodiment, the body lamp cover and the body lamp housing form a first cavity, and the taillight mating structure further includes a first thick-walled member disposed within the first cavity.

[0010] In one embodiment, the tailgate lamp cover and the tailgate lamp housing form a second cavity, and the taillight mating structure further includes a second thick-walled member disposed within the second cavity.

[0011] In one embodiment, the outer side of the first stop portion and the outer side of the vehicle body cover are located on the same horizontal plane; the outer side of the second stop portion and the outer side of the tailgate cover are located on the same horizontal plane.

[0012] In one embodiment, the taillight further includes a body bracket, and the taillight housing is fixed to the body bracket.

[0013] In one embodiment, the tailgate taillight further includes a tailgate bracket, and the tailgate taillight housing is fixed to the tailgate bracket.

[0014] In one embodiment, the first cover and the first stop are integrally molded parts; the second cover and the second stop are integrally molded parts.

[0015] In addition, this utility model also provides a car that uses the above-mentioned taillight matching structure.

[0016] The present invention provides a taillight assembly structure and automobile, including a body taillight and a tailgate taillight. The two are connected by a progressively widening stop and a cover plate to cover the welding seam, thereby reducing the gap and hiding the welding surface. This has the advantages of effectively covering the welding area while reducing the light emission gap and improving the aesthetics. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the fitting structure of a taillight in the prior art;

[0019] Figure 2 A schematic diagram of an embodiment of the taillight assembly structure provided by this utility model;

[0020] Figure 3 for Figure 2 A magnified structural diagram of area A in the middle.

[0021] Figure 1 Explanation of icon numbers:

[0022] 1' Body taillight; 11' Body light housing; 12' Body light cover; 121' Body baffle; 2' Tailgate taillight; 21' Tailgate light housing; 22' Tailgate light cover; 221' Tailgate baffle.

[0023] Figure 2 and Figure 3 Explanation of icon numbers:

[0024] 100. Taillight assembly structure; 1. Body taillight; 11. Body lamp cover; 111. First cover; 112. First stop; 12. Body lamp housing; 13. Body cover plate; 14. First weld bead; 141. First stepped surface; 15. First cavity; 16. First thick-walled component; 17. Body bracket

[0025] 2. Tailgate taillight; 21. Tailgate lamp cover; 211. Second cover; 212. Second stop; 22. Tailgate lamp housing; 23. Tailgate cover plate; 24. Second weld bead; 241. Second step surface; 25. Second cavity; 26. Second thick-walled component; 18. Tailgate bracket.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Please refer to Figure 1 In existing technology, split taillights consist of a body taillight 1' and a tailgate taillight 2', which are structurally separate and installed on the body and tailgate respectively. This results in a light-emitting gap between the body taillight 1' and the tailgate taillight 2'. The light-emitting gap refers to the distance between the light-emitting surfaces of the body taillight 1' and the tailgate taillight 2'. Existing technologies, such as... Figure 1In the above description, the light-emitting gap is d', where d' = a' + b' + c', and c' is the gap between the body taillight 1' and the tailgate taillight 2'. a' is the distance from the light-emitting surface of the body taillight 1' to the taillight itself, and b' is the distance from the light-emitting surface of the tailgate taillight 2' to the tailgate, to prevent the welding point from being directly visible from the rear. The structure of the body taillight 1' is similar to that of the tailgate taillight 2', and will not be described further here. The presence of the tailgate baffle 221' and the body baffle 121' increases the light-emitting gap between the body taillight 1' and the tailgate taillight 2'. Removing the tailgate baffle 221' and the body baffle 121' would reduce the light-emitting gap, but would allow users to directly see the welding point from behind the vehicle, thus affecting the aesthetics of the taillights. Therefore, how to reduce the light-emitting gap between the body taillight 1' and the tailgate taillight 2' while ensuring the welding point between the lamp housing and the lamp cover is concealed has become a pressing problem to be solved.

[0031] Please refer to Figure 2 and then Figure 3 This utility model proposes a taillight assembly structure and an automobile, wherein the taillight assembly structure 100 includes a body taillight 1 and a tailgate taillight 2. The body taillight 1 is installed on the automobile body and includes a body lamp cover 11, a body lamp housing 12, and a body cover 13. The body lamp cover 11 includes a first cover body 111 and a first stop portion 112. One end of the first stop portion 112 is connected to the first cover body 111, and the other end of the first stop portion 112 is welded to the body lamp housing 12 through a first welding rod 14. The first stop portion 112 extends from rear to front and is gradually widened along its extension direction. One end of the body cover 13 is located close to the first stop portion 112 and covers the seam formed at the weld between the first stop portion 112 and the body lamp housing 12. Tailgate taillight 2 is installed on the tailgate of the car. Tailgate taillight 2 includes tailgate light cover 21, tailgate light housing 22 and tailgate cover 23. Tailgate light cover 21 includes a second cover 211 and a second stop 212. One end of the second stop 212 is connected to the second cover 211, and the other end of the second stop 212 is welded to the tailgate light housing 22 through a second weld bead 24. The second stop 212 extends from back to front and is gradually widened along its extension direction. One end of the tailgate cover 23 is located close to the second stop 212 and covers the gap formed at the weld between the second stop 212 and the tailgate light housing 22.

[0032] In the above embodiment, the light-emitting gap between the vehicle taillight 1 and the tailgate taillight 2 is d, where d = a + b + c, a is the distance from the light-emitting surface of the vehicle taillight 1 to its end, b is the distance from the light-emitting surface of the tailgate taillight 2 to its end, and c is the gap between the vehicle taillight 1 and the tailgate taillight 2. The gradually widening configuration refers to the width gradually increasing from back to front. This shape allows the front end of the stop portion to have a larger shielding area to cover the weld bead area, while the rear width decreases to reduce the size of 'a'.

[0033] In this embodiment, the first stop portion 112 of the vehicle taillight 1 and the second stop portion 212 of the tailgate taillight 2, with their gradually expanding shapes, form a parallel, gradually changing gap between their adjacent edges. Due to the narrow width design of the rear ends of the first stop portion 112 and the second stop portion 212, the dimensions of a and b are reduced. Simultaneously, the wider rear end design allows the first stop portion 112 and the second stop portion 212 to respectively cover the corresponding first weld bead 14 and second weld bead 24. This application significantly reduces the light-emitting gap between the vehicle taillight 1 and the tailgate taillight 2 while maintaining complete concealment of the weld seam. The matching design of the extending direction of the gradually expanding stop portion with the line of sight ensures both visual concealment of the weld bead area and optimizes the gap dimensions between the edges of adjacent vehicle taillight 1 and tailgate taillight 2, ultimately achieving visual continuity and improved overall aesthetics of the taillights.

[0034] In one embodiment, the first weld bead 14 is disposed near the inner side of the first stop portion 112, and a first stepped surface 141 is formed at the connection between the first weld bead 14 and the first stop portion 112. One end of the vehicle body cover 13 is disposed near the first stepped surface 141. In this embodiment, the inner side of the first stop portion 112 refers to the side of the first stop portion 112 facing the interior of the vehicle body taillight 1. By moving the welding position inward, the degree of structural expansion can be reduced. The first stepped surface 141 refers to the vertical positioning surface formed by the height difference between the first weld bead 14 and the first stop portion 112. Specifically, it is achieved by controlling the difference between the height of the first weld bead 14 and the thickness of the first stop portion 112. This stepped surface provides an axial limiting reference for the vehicle body cover 13.

[0035] Specifically, the first weld bead 14 extends along the inner side of the first stop portion 112 and is welded to the body lamp housing 12. The connection between the two forms a stepped structure with a height difference due to the thickness difference. During installation, the body cover 13 directly abuts against the vertical sidewall of the stepped surface, achieving precise axial positioning control. Thus, the body cover 13 completely covers the weld seam without needing to extend outwards to cover the area, thereby avoiding an increase in the volume of the taillight 1 due to the outward protrusion of the covering structure. The vertical sidewall of the stepped surface and the end of the body cover 13 form a complementary L-shaped covering path, ensuring that the weld seam is completely covered in both the horizontal and vertical directions.

[0036] In one embodiment, the second weld bead 24 is disposed near the inner side of the second stop portion 212, and a second stepped surface 241 is formed at the connection between the second weld bead 24 and the second stop portion 212. One end of the vehicle body cover 13 is disposed near the second stepped surface 241. The second stepped surface 241 refers to a vertical positioning surface formed by the height difference between the second weld bead 24 and the second stop portion 212, specifically achieved by controlling the difference between the height of the second weld bead 24 and the thickness of the second stop portion 212. This stepped surface provides an axial limiting reference for the vehicle body cover 13.

[0037] Specifically, the second weld bead 24 extends along the inner side of the second stop portion 212 and is welded to the tailgate lamp housing 22. The connection between the two forms a stepped structure with a height difference due to the thickness difference. When the tailgate cover 23 is installed, its end directly abuts against the vertical sidewall of the stepped surface, achieving precise axial limiting control. Thus, the body cover 13 completely covers the weld seam without needing to extend outwards to cover the area, thereby avoiding an increase in the size of the tailgate taillight 2 due to the outward protrusion of the covering structure. The vertical sidewall of the stepped surface and the end of the body cover 13 form a complementary L-shaped covering path, ensuring that the weld seam is completely covered in both the horizontal and vertical directions.

[0038] In one embodiment, the body lamp cover 11 and the body lamp housing 12 form a first cavity 15. The taillight mating structure 100 further includes a first thick-walled member 16, which is disposed within the first cavity 15. The first cavity 15 refers to the enclosed space formed by welding the body lamp cover 11 and the body lamp housing 12. The first thick-walled member 16, installed within the first cavity 15, serves as a light guide. By providing the first thick-walled member 16, it can evenly diffuse the light emitted by the LED light source in the taillight 1 throughout the entire taillight 1 area, resulting in a uniform and soft light effect when the taillight is illuminated.

[0039] In one embodiment, the tailgate lamp cover 21 and tailgate lamp housing 22 form a second cavity 25. The taillight mating structure 100 also includes a second thick-walled member 26, which is disposed within the second cavity 25. The second cavity 25 refers to the enclosed space formed by welding the body lamp cover 11 and the body lamp housing 12. The second thick-walled member 26, installed within the second cavity 25, serves as a light guide. By providing the second thick-walled member 26, it can evenly diffuse the light emitted by the LED light source in the taillight 1 to the entire taillight 1 area, resulting in a uniform and soft light effect when the taillight is illuminated.

[0040] In one embodiment, the outer side of the first stop portion 112 and the outer side of the vehicle body cover 13 are located on the same horizontal plane; the outer side of the second stop portion 212 and the outer side of the tailgate cover 23 are located on the same horizontal plane. The outer side of the first stop portion 112 refers to the side of the first stop portion 112 closest to the second stop portion 212, and the outer side of the second stop portion 212 refers to the side of the second stop portion 212 closest to the first stop portion 112. The coplanar arrangement of the first stop portion 112 and the vehicle body cover 13, compared to a staggered arrangement, reduces the width of the first stop portion 112 and the vehicle body cover 13. Similarly, the coplanar arrangement of the second stop portion 212 and the tailgate cover 23, compared to a staggered arrangement, also reduces the width of the second stop portion 212 and the tailgate cover 23.

[0041] In one embodiment, the vehicle taillight 1 further includes a vehicle body bracket 17, to which the vehicle taillight housing 12 is fixed. The tailgate taillight 2 further includes a tailgate bracket 18, to which the tailgate taillight housing 22 is fixed. The vehicle body bracket 17 provides stable support for the vehicle taillight housing 12. The tailgate bracket 18 provides stable support for the tailgate taillight housing 22. This increases the structural strength of the vehicle taillight 1 and tailgate taillight 2 in this embodiment.

[0042] In one embodiment, the first cover 111 and the first stop 112 are integrally molded parts; the second cover 211 and the second stop 212 are also integrally molded parts. Integrating the cover and the first stop 112 into a single injection-molded part avoids the gaps caused by assembly errors in a split structure. The first stop 112 and the cover form a continuous transition surface, reducing the overall size of the taillight 1 while maintaining the function of shielding the weld joint. Similarly, the integral molding of the second cover 211 and the second stop 212 makes the tailgate taillight 2 structure more compact, eliminating the cumulative dimensional errors caused by separate welding, thereby reducing the light-emitting gap between the taillight 1 and the tailgate taillight 2 when the tailgate is closed. This molding method achieves structural continuity through mold precision control, maintaining the shielding effect of the stop on the weld bead while optimizing the lamp body fitting gap.

[0043] In addition, this utility model also provides an automobile that uses the aforementioned taillight assembly structure 100. Since this automobile adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0044] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A taillight assembly structure, characterized in that, include: The vehicle taillight is mounted on the vehicle body. The vehicle taillight includes a body lamp cover, a body lamp housing, and a body cover. The body lamp cover includes a first cover body and a first stop portion. One end of the first stop portion is connected to the first cover body, and the other end of the first stop portion is welded to the body lamp housing through a first weld bead. The first stop portion extends from rear to front and is gradually widened along its extension direction. One end of the body cover portion is located close to the first stop portion and covers the gap formed at the weld between the first stop portion and the body lamp housing. A tailgate taillight is installed on the tailgate of a vehicle. The tailgate taillight includes a tailgate light cover, a tailgate light housing, and a tailgate cover. The tailgate light cover includes a second cover body and a second stop portion. One end of the second stop portion is connected to the second cover body, and the other end of the second stop portion is welded to the tailgate light housing through a second weld bead. The second stop portion extends from rear to front and is gradually widened along its extension direction. One end of the tailgate cover portion is located close to the second stop portion and covers the seam formed at the weld between the second stop portion and the tailgate light housing.

2. The taillight mating structure as described in claim 1, characterized in that, The first weld bead is disposed near the inner side of the first stop portion, and the connection between the first weld bead and the first stop portion forms a first stepped surface. One end of the vehicle body cover is disposed near the first stepped surface.

3. The taillight mating structure as described in claim 1, characterized in that, The second weld bead is disposed near the inner side of the second stop portion, and the connection between the second weld bead and the second stop portion forms a second stepped surface. One end of the vehicle body cover is disposed near the second stepped surface.

4. The taillight mating structure as described in claim 1, characterized in that, The body lamp cover and the body lamp housing form a first cavity, and the taillight's mating structure also includes a first thick-walled member, which is disposed within the first cavity.

5. The taillight mating structure as described in claim 1, characterized in that, The tailgate lamp cover and the tailgate lamp housing form a second cavity, and the taillight's mating structure also includes a second thick-walled member, which is disposed within the second cavity.

6. The taillight mating structure as described in claim 1, characterized in that, The outer side of the first stop and the outer side of the vehicle body cover are on the same horizontal plane; the outer side of the second stop and the outer side of the tailgate cover are on the same horizontal plane.

7. The taillight mating structure as described in claim 1, characterized in that, The taillight also includes a body bracket, and the taillight housing is fixed to the body bracket.

8. The taillight mating structure as described in claim 1, characterized in that, The tailgate taillight also includes a tailgate bracket, and the tailgate taillight housing is fixed to the tailgate bracket.

9. The taillight mating structure as described in any one of claims 1 to 8, characterized in that, The first cover and the first stop are integrally molded parts; the second cover and the second stop are integrally molded parts.

10. A car, characterized in that, The automobile application has a taillight assembly structure as described in any one of claims 1 to 9.