Structure for improving mode of back door of through type tail lamp of automobile

Abstract

The invention belongs to the technical field of automobile through-type tail lamps, and relates to a structure for improving the mode of a back door of an automobile through-type tail lamp. Comprising an inner plate reinforcing plate body (5), a plurality of outer convex edges are arranged on the periphery of the inner plate reinforcing plate body (5), a plurality of bolts are arranged on the periphery of the inner plate reinforcing plate body (5), each outer convex edge of the inner plate reinforcing plate body (5) is welded with a back door inner plate (4) to form a welding point, and each bolt of the inner plate reinforcing plate body (5) is welded with the back door inner plate (4) to form a lap joint point. According to the structure for improving the mode of the back door of the through type tail lamp of the automobile, the structure is simple, the structure of the back door of the through type tail lamp can be effectively optimized, the overall bending and torsional rigidity of the back door is improved, and finally the overall mode of the back door is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive through-type taillights, and more specifically, it relates to a structure for improving the back door mode of an automotive through-type taillight. Background Art

[0002] With the continuous progress of automotive technology and the changing needs of consumers, vehicle models are designed to be more innovative and personalized, among which the design of through-type taillights is representative. First of all, the through-type taillight design can create a simple and smooth overall visual effect, enhancing the technological sense and fashion sense of the whole vehicle. Secondly, the through-type taillight design can add a sense of hierarchy and uniqueness to the rear of the vehicle, making the vehicle particularly conspicuous at night. However, the through-type taillight also has design defects. To meet the requirements of its unique shape, the entire back door structure needs to be disconnected in the middle to meet the space requirements of the through-type taillight. As a result, the bending and torsional stiffness of the entire back door is severely weakened. During vehicle driving, the excitation of the road surface is easily coupled with the back door mode, leading to an increase in interior road noise and seriously affecting the comfort of passengers. The prior art avoids the problem frequency by adding vibration absorbers to the back door body to achieve decoupling of the road surface excitation and the back door mode. However, this solution is costly and cannot fundamentally solve the problem.

[0003] In the prior art, there is a technology with the name of "a mounting bracket for a vehicle and a vehicle" and the publication (announcement) number of "CN213035635U". This technology provides a mounting bracket for a vehicle and a vehicle, which relates to the technical field of vehicle interior and exterior decoration. The mounting bracket is arranged between the inner panel and the outer panel of the vehicle back door and is in a plate shape. The mounting bracket has a first end connected to the outer panel of the back door and a second end connected to the inner panel of the back door. At least one first mounting hole for mounting a vehicle windshield wiper is provided near the first end of the mounting bracket, and at least one connecting portion for connecting a vehicle through-type taillight is provided near the second end of the mounting bracket. Compared with the prior art solution, the present utility model does not require the setting of vibration absorbers. Only one mounting bracket can connect the inner panel of the back door, the outer panel of the back door, and the through-type taillight together, that is, the continuity of the vehicle back door is realized, the NVH noise can be effectively reduced, and at the same time, the connection strength of the vehicle back door is strengthened. However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: aiming at the deficiencies of the prior art, to provide a structure that is simple, can effectively optimize the structure of the back door of the through-type taillight, improve the overall bending and torsional stiffness of the back door, and ultimately achieve the improvement of the overall mode of the back door, that is, a structure for improving the back door mode of the automotive through-type taillight.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0006] The present invention relates to a structure for improving the modality of the rear door of a vehicle with a through-type taillight, including a main body of an inner panel reinforcement plate. The main body of the inner panel reinforcement plate is provided with a plurality of outward convex edges along its periphery, and a plurality of bolts are arranged along the periphery of the main body of the inner panel reinforcement plate. Each outward convex edge of the main body of the inner panel reinforcement plate is respectively welded to the inner panel of the rear door to form a welding point, and each bolt of the main body of the inner panel reinforcement plate is respectively welded to the inner panel of the rear door to form a lapping point.

[0007] The rear door includes a lower section of the outer panel of the rear door, an upper section of the outer panel of the rear door, and a through-type taillight. A through-type taillight is arranged between the lower section 1 of the outer panel of the rear door and the upper section of the outer panel of the rear door.

[0008] The lower section of the outer panel of the rear door and the upper section of the outer panel of the rear door are respectively connected to the inner panel of the rear door, and the inner panel of the rear door is connected to the main body of the inner panel reinforcement plate.

[0009] The plurality of outward convex edges arranged around the main body of the inner panel reinforcement plate and the main body of the inner panel reinforcement plate are of an integral structure; the plurality of bolts arranged around the main body of the inner panel reinforcement plate and the main body of the inner panel reinforcement plate are of a welded connection structure.

[0010] The plurality of outward convex edges around the main body of the inner panel reinforcement plate are respectively outward convex edge a, outward convex edge b, outward convex edge c8, outward convex edge d, outward convex edge e, outward convex edge f, outward convex edge g16, outward convex edge h, and outward convex edge i.

[0011] The plurality of bolts around the main body of the inner panel reinforcement plate are respectively bolt a, bolt b, bolt c, and bolt d.

[0012] One or more bolts are arranged between one or more of the outward convex edges around the main body 5 of the inner panel reinforcement plate.

[0013] A local strengthening structure is arranged on the main body 5 of the inner panel reinforcement plate.

[0014] The welding points formed by welding the outward convex edges of the main body 5 of the inner panel reinforcement plate to the inner panel 4 of the rear door include welding point a, welding point b, welding point c, welding point d, welding point e, welding point f, welding point g, welding point h, and welding point i.

[0015] The lapping points formed by welding the bolts of the main body 5 of the inner panel reinforcement plate to the inner panel 4 of the rear door include lapping point a, lapping point b, lapping point c, and lapping point d.

[0016] Adopting the technical solution of the present invention, the working principle and beneficial effects are as follows:

[0017] The structure for improving the modal of the rear door of a vehicle with a through - type taillight according to the present invention innovates the structure of the inner panel reinforcement body to enhance the joint stiffness. The inner panel reinforcement body is extended in the upper, lower, left, and right directions and is fully overlapped with the rear door inner panel as much as possible. Specifically, first, multiple outward - protruding edges, namely outward - protruding edge a, outward - protruding edge b, outward - protruding edge c, outward - protruding edge d, outward - protruding edge e, outward - protruding edge f, outward - protruding edge g, outward - protruding edge h, and outward - protruding edge i, are used to overlap with the rear door inner panel to form multiple welding points, realizing the basic overlapping connection between the inner panel reinforcement body and the rear door inner panel. Secondly, bolts a, bolts b, bolts c, and bolts d are used to overlap with the rear door inner panel again to form multiple overlapping points, further improving the overlapping performance and simultaneously meeting the load - bearing installation requirements of other functional components. Based on the above - mentioned means, its essence lies in increasing the overlapping area between the inner panel reinforcement body and the rear door inner panel, and at the same time optimizing the features of the inner panel reinforcement body, such as local strengthening structures, to improve the joint stiffness at both ends of the rear door, further improving the overall bending and torsional stiffness of the rear door, and finally improving the overall modal of the rear door to meet the structural defects brought by the through - type taillight. This patent innovatively optimizes the structure of the rear door designed with a through - type taillight, avoids the stiffness defects in the rear door design caused by the through - type taillight design, improves the overall bending and torsional stiffness of the rear door, and finally achieves the purpose of improving the overall modal of the rear door. At the same time, simulation is used for theoretical verification, verifying the structural advantages of the present invention compared with the rear door of a traditional non - through - type taillight vehicle, which is of great significance for improving the performance of the whole vehicle. In addition, the structure of the present invention can be applied generally in similar vehicle designs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following briefly describes the content expressed by each drawing in this specification and the marks in the drawings:

[0019] Figure 1 is a schematic structural diagram of the rear door of a vehicle with a through - type taillight according to the present invention;

[0020] Figure 2 is a schematic structural diagram of the rear door of a vehicle with a hidden through - type taillight according to the present invention;

[0021] Figure 3 is a schematic structural diagram of the inner panel of the rear door of the vehicle according to the present invention;

[0022] Figure 4 is a schematic structural diagram of the inner panel of the rear door and the inner panel reinforcement body of the vehicle according to the present invention;

[0023] Figure 5 is a schematic structural diagram of the inner panel reinforcement body of the rear door of the vehicle according to the present invention;

[0024] Figure 6Parameter comparison diagram before and after the improvement of the rear door of the vehicle according to the present invention;

[0025] The labels in the attached drawings are respectively: 1, the lower section of the outer panel of the rear door; 2, the through-type taillight; 3, the upper section of the outer panel of the rear north door; 4, the inner panel of the rear door; 5, the main body of the inner panel reinforcement plate; 6, the convex edge a; 7, the convex edge b; 8, the convex edge c; 9, the bolt a; 10, the bolt b; 11, the convex edge d; 12, the convex edge e; 13, the bolt c; 14, the bolt d; 15, the convex edge f; 16, the convex edge g; 17, the convex edge h; 18, the convex edge i; 19, the local reinforcement structure. Specific embodiments

[0026] The following will make a further detailed description of the specific embodiments of the present invention, such as the shapes, structures, mutual positions and connection relationships between various parts, the functions and working principles of various parts, etc. of the components involved, with reference to the attached drawings and through the description of the embodiments:

[0027] As shown in the attached Figure 1 - attached Figure 5 As shown, the present invention is a structure for improving the mode of the rear door of a vehicle with a through-type taillight, including the main body 5 of the inner panel reinforcement plate. The main body 5 of the inner panel reinforcement plate is provided with a plurality of convex edges along the periphery, and a plurality of bolts are provided along the periphery of the main body 5 of the inner panel reinforcement plate. Each convex edge of the main body 5 of the inner panel reinforcement plate is respectively welded to the inner panel 4 of the rear door to form a welding point, and each bolt of the main body 5 of the inner panel reinforcement plate is respectively welded to the inner panel 4 of the rear door to form a lapping point. For the deficiencies in the prior art, the above structure proposes an improved technical solution. When setting the structure, in order to improve the joint stiffness, structural innovation is carried out on the main body 5 of the inner panel reinforcement plate. With reference to the attached Figure 4 and attached Figure 5A description is given as follows. The inner panel reinforcement plate body 5 is extended in the up, down, left, and right directions to fully overlap with the inner panel of the rear door 4 as much as possible. Specifically, first, it overlaps with the inner panel of the rear door 4 through a plurality of outward convex edges, namely outward convex edge a6, outward convex edge b7, 8-outward convex edge c8, outward convex edge d11, outward convex edge e12, outward convex edge f15, outward convex edge g16, outward convex edge h17, and outward convex edge i 18, forming a plurality of welding points (weld spots) to achieve the basic overlapping connection between the inner panel reinforcement plate body 5 and the inner panel of the rear door 4. Secondly, it overlaps with the inner panel of the rear door 4 again through bolt a9, bolt b10, bolt c13, and bolt d14, forming a plurality of overlapping points to further improve the overlapping performance and at the same time meet the load-bearing installation requirements of other functional components. Based on the above means, its essence lies in increasing the overlapping area between the inner panel reinforcement plate body 5 and the inner panel of the rear door 4, and at the same time optimizing the features of the inner panel reinforcement plate body 5, such as local strengthening structures, to improve the joint stiffness at both ends of the rear door, further improve the overall bending and torsion stiffness of the rear door, and finally improve the overall mode of the rear door to meet the structural defects brought by the through-type taillights. This patent innovatively optimizes the structure of the rear door with a through-type taillight design, effectively avoiding the stiffness defects in the rear door design caused by the through-type taillight design, improving the overall bending and torsion stiffness of the rear door, and finally achieving the purpose of improving the overall mode of the rear door. At the same time, simulation is used for theoretical verification, effectively verifying the structural advantages of the present invention compared with the rear door of the traditional non-through-type taillight, which is of great significance for improving the vehicle performance. In addition, the structure of the present invention can be applied generally in similar vehicle designs. The structure for improving the mode of the rear door of the vehicle with a through-type taillight described in the present invention has a simple structure, can effectively optimize the structure of the rear door with a through-type taillight, improve the overall bending and torsion stiffness of the rear door, and finally achieve the purpose of improving the overall mode of the rear door.

[0028] The rear door described includes the lower section 1 of the outer panel of the rear door, the upper section 3 of the outer panel of the rear door, and the through-type taillight 2. The through-type taillight 2 is arranged between the lower section 1 of the outer panel of the rear door and the upper section 3 of the outer panel of the rear door. Based on theoretical analysis, CAE simulation means are used for verification to verify the difference in the rear door mode between the optimized solution of the present invention and the solution in the prior art. The specific results are as shown in the appendix Figure 6 shown. The analysis results further confirm the structural defects of the basic design in the prior art, which cannot meet the performance requirements of the rear door mode. Based on this, the present invention innovatively proposes a new optimized structure to make up for the structural defects brought by the through-type taillight design.

[0029] The lower section 1 of the outer panel of the rear door and the upper section 3 of the outer panel of the rear north door are respectively connected to the inner panel 4 of the rear door, and the inner panel 4 of the rear door is connected to the main body 5 of the inner panel reinforcement plate. In the above structure, the inner panel 4 of the rear door is strengthened by the main body 5 of the inner panel reinforcement plate, and the lower section 1 of the outer panel of the rear door and the upper section 3 of the outer panel of the rear north door are strengthened by local improvements of the inner panel 4 of the rear door and the main body 5 of the inner panel reinforcement plate.

[0030] A plurality of outwardly convex edges provided around the main body 5 of the inner panel reinforcement plate are of an integral structure with the main body 5 of the inner panel reinforcement plate; a plurality of bolts provided around the main body 5 of the inner panel reinforcement plate are of a welded connection structure with the main body 5 of the inner panel reinforcement plate. In the above structure, through the arrangement of a plurality of bolts, the overlapping area between the main body 5 of the inner panel reinforcement plate and the inner panel 4 of the rear door is further increased, so as to improve the joint stiffness at both ends of the rear door, further improve the overall bending and torsion stiffness of the rear door, and finally improve the overall mode of the rear door to meet the structural defects brought by the through-type taillight.

[0031] The plurality of outwardly convex edges around the main body 5 of the inner panel reinforcement plate are respectively outwardly convex edge a6, outwardly convex edge b7, outwardly convex edge c8, outwardly convex edge d11, outwardly convex edge e12, outwardly convex edge f15, outwardly convex edge g16, outwardly convex edge h17, and outwardly convex edge i 18. In the above structure, as a specific embodiment, the outwardly convex edges are designed according to the above quantity and position. For rear doors of different models and sizes, the number of outwardly convex edges can be considered to be increased or decreased, and the positions and distances of different outwardly convex edges can be changed.

[0032] The plurality of bolts around the main body 5 of the inner panel reinforcement plate are respectively bolt a9, bolt b10, bolt c13, and bolt d14. In the above structure, as a specific embodiment, the bolts are designed according to the above quantity and position. For rear doors of different models and sizes, the number of bolts can be considered to be increased or decreased, and the positions and distances of different bolts can be changed to meet the actual requirements.

[0033] One or more bolts are arranged between one or more of the outwardly convex edges around the main body 5 of the inner panel reinforcement plate. In the above structure, the outwardly convex edges and the bolts are arranged in a staggered manner to ensure the overlapping area between different outwardly convex edges and bolts and the welding strength between them with the inner panel 4 of the rear door.

[0034] A local strengthening structure 19 is provided on the main body 5 of the inner panel reinforcement plate. In the above structure, through the arrangement of the local strengthening structure 19, the structure of the main body 5 of the inner panel reinforcement plate is strengthened again.

[0035] The welding points formed by welding the outer convex edge of the inner panel reinforcement plate body 5 and the inner panel of the rear door 4 include welding points a, b, c, d, e, f, g, h, and i. In the above structure, each outer convex edge is welded to the inner panel of the rear door 4 to form a corresponding welding point. As a specific embodiment, the welding points are designed according to the above quantity and position. For rear doors of different models and sizes, the quantity of welding points can be considered to be increased or decreased, and the positions and distances of different welding points can be changed.

[0036] The overlapping points formed by welding the bolts of the inner panel reinforcement plate body 5 and the inner panel of the rear door 4 include overlapping points a, b, c, and d. In the above structure, each bolt is welded to the inner panel of the rear door 4 to form a corresponding overlapping point. As a specific embodiment, the overlapping points are designed according to the above quantity and position. For rear doors of different models and sizes, the quantity of overlapping points can be considered to be increased or decreased, and the positions and distances of different overlapping points can be changed.

[0037] In the structure for improving the mode of the rear door of an automobile with a through-type taillight of the present invention, as shown in the attached Figure 1 figures, the schematic diagram of the rear door of the automobile with a through-type taillight is shown, including the lower section 1 of the outer panel of the rear door, the through-type taillight 2, and the upper section 3 of the outer panel of the rear door. As can be seen from the attached Figure 1 figures, due to the design requirements of the through-type taillight 2, the entire rear door is divided into upper and lower sections, and overall, there is inevitably a weakening in stiffness compared to traditional rear doors. The present invention proposes an optimized structure for the rear door with a through-type taillight to improve the bending and torsional stiffness of the automobile rear door, so as to achieve the purpose of improving the mode of the rear door. As shown in the attached Figure 2 and 3 figures, after hiding the through-type taillight 2 on the basis of the attached Figure 1 figures, it can be more intuitively seen that there are defects in the overall structure of the rear door, resulting in serious weakening of the overall bending and torsional stiffness. To make up for this defect, this patent proposes a new design scheme to improve the overall bending and torsional stiffness of the rear door, and finally achieve the purpose of improving the overall mode. It can be known from theory that to improve the overall bending and torsional stiffness of the rear door, the key is to improve the stiffness of the joints marked by circles in Figure 3 .

[0038] In the structure for improving the mode of the rear door of an automobile with a through-type taillight of the present invention, when the structure is set up, in order to improve the stiffness of the joints, the structure of the inner panel reinforcement plate body 5 is innovated. Combining the attached Figure 4 and the attached Figure 5A description will be given. The inner panel reinforcement plate body 5 is extended in the up, down, left, and right directions to fully overlap with the inner panel of the rear door 4 as much as possible. Specifically, as follows, first, multiple outward convex edges, namely outward convex edge a6, outward convex edge b7, 8-outward convex edge c8, outward convex edge d11, outward convex edge e12, outward convex edge f15, outward convex edge g16, outward convex edge h17, and outward convex edge i 18, overlap with the inner panel of the rear door 4 to form multiple welding points (weld spots), realizing the basic overlapping connection between the inner panel reinforcement plate body 5 and the inner panel of the rear door 4. Secondly, bolts a9, bolts b10, bolts c13, and bolts d14 overlap with the inner panel of the rear door 4 again to form multiple overlapping points, further improving the overlapping performance and simultaneously meeting the load-bearing installation requirements of other functional components. Based on the above means, its essence lies in increasing the overlapping area between the inner panel reinforcement plate body 5 and the inner panel of the rear door 4, and at the same time optimizing the local features of the inner panel reinforcement plate body 5, such as setting a local strengthening structure 19, to achieve the purpose of enhancing the joint stiffness at both ends of the rear door, further achieving the purpose of enhancing the overall bending and torsion stiffness of the rear door, and ultimately achieving the purpose of enhancing the overall mode of the rear door to meet the structural defects brought by the through-type taillights. This patent has innovatively optimized the structure of the rear door with a through-type taillight design, effectively avoiding the stiffness defects in the rear door design caused by the through-type taillight design, enhancing the overall bending and torsion stiffness of the rear door, and ultimately achieving the purpose of enhancing the overall mode of the rear door. At the same time, simulation was used to conduct theoretical verification, effectively verifying the structural advantages of the present invention compared with the rear door of the traditional non-through-type taillight, which is of great significance for improving the overall vehicle performance. In addition, the structure of the present invention can be applied generally in similar vehicle designs.

[0039] The present invention has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A structure for improving the mode of the rear door of a vehicle's through-type taillight, characterized in that: It includes an inner panel reinforcement body (5). The inner panel reinforcement body (5) is provided with a plurality of outward convex edges along its periphery, and a plurality of bolts are arranged along its periphery. Each outward convex edge of the inner panel reinforcement body (5) is respectively welded to the inner panel of the rear door (4) to form a welding point, and each bolt of the inner panel reinforcement body (5) is respectively welded to the inner panel of the rear door (4) to form a lapping point.

2. The structure for improving the mode of the rear door of the through-type taillight of the vehicle according to claim 1, wherein: The rear door described above includes a lower section of the outer panel of the rear door (1), an upper section of the outer panel of the rear north door (3), and a through-type taillight (2). The through-type taillight (2) is arranged between the lower section of the outer panel of the rear door (1) and the upper section of the outer panel of the rear north door (3).

3. The structure for improving the mode of the through-type taillight rear door of an automobile according to claim 1 or 2, characterized in that: The lower section of the outer panel of the rear door (1) and the upper section of the outer panel of the rear north door (3) are respectively connected to the inner panel of the rear door (4), and the inner panel of the rear door (4) is connected to the inner panel reinforcement body (5).

4. The structure for improving the mode of the through-type taillight rear door of an automobile according to claim 1 or 2, characterized in that: The plurality of outward convex edges provided along the periphery of the inner panel reinforcement body (5) and the inner panel reinforcement body (5) are of an integral structure; the plurality of bolts provided along the periphery of the inner panel reinforcement body (5) and the inner panel reinforcement body (5) are of a welded connection structure.

5. The structure for improving the modal of the through-type taillight rear door of an automobile according to claim 1 or 2, characterized in that: The plurality of outward convex edges along the periphery of the inner panel reinforcement body (5) are respectively an outward convex edge a (6), an outward convex edge b (7), an outward convex edge c (8), an outward convex edge d (11), an outward convex edge e (12), an outward convex edge f (15), an outward convex edge g (16), an outward convex edge h (17), and an outward convex edge i (18).

6. The structure for improving the mode of the rear door of the through-type taillight of the vehicle according to claim 5, characterized in that: The plurality of bolts along the periphery of the inner panel reinforcement body (5) are respectively a bolt a (9), a bolt b (10), a bolt c (13), and a bolt d (14).

7. The structure for improving the mode of the through-type taillight rear door of an automobile according to claim 6, wherein: One or more bolts are arranged between one or more of the outward convex edges along the periphery of the inner panel reinforcement body (5).

8. The structure for improving the mode of the through-type taillight rear door of an automobile according to claim 1 or 3, characterized in that: A local strengthening structure (19) is arranged on the inner panel reinforcement body (5).

9. The structure for improving the mode of the through-type taillight rear door of an automobile according to claim 5, wherein: The welding points formed by welding the outward convex edge of the inner panel reinforcement body (5) to the inner panel of the rear door (4) include welding points a, b, c, d, e, f, g, h, and i.

10. The structure for improving the mode of the through-type taillight rear door of an automobile according to claim 6, wherein: The lapping points formed by welding the bolts of the inner panel reinforcement body (5) to the inner panel of the rear door (4) include lapping points a, b, c, and d.

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