Back door inner panel assembly and vehicle

Abstract

This utility model discloses a tailgate inner panel assembly and a vehicle, relating to the field of vehicle manufacturing technology. The tailgate inner panel assembly includes: a tailgate inner panel; a reinforcing structure comprising multiple interconnected reinforcing plates, each of which is connected to the longitudinal rear side of the tailgate inner panel; and a strut reinforcing plate connected to the longitudinal rear side of the multiple reinforcing plates. This utility model's tailgate inner panel assembly, by employing a split reinforcing structure to strengthen the vehicle's tailgate inner panel, effectively improves the structural strength of the tailgate inner panel. Furthermore, the split reinforcing plate has a simple structure, facilitating processing and installation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a tailgate inner panel assembly and a vehicle having the tailgate inner panel assembly. Background Technology

[0002] In vehicle structural design, to enhance functionality and appearance, taillights are typically integrated across the entire inner panel of the tailgate. Related technologies often employ an integrated design for the tailgate inner panel reinforcement plate; however, this type of reinforcement plate is difficult to stamp, presents challenges in mold development, suffers from low material utilization, and exhibits structural instability, thus impacting both vehicle production efficiency and quality. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a rear tailgate inner panel assembly, which is beneficial to improving the structural strength of the rear tailgate inner panel, and has a simple structure that is easy to process and install.

[0004] According to an embodiment of the present utility model, the rear tailgate inner panel assembly includes: a rear tailgate inner panel; a reinforcing structure, the reinforcing structure including a plurality of connected reinforcing plates, the plurality of reinforcing plates being respectively connected to the longitudinal rear side of the rear tailgate inner panel; and a strut reinforcing plate, the strut reinforcing plate being connected to the longitudinal rear side of the plurality of reinforcing plates.

[0005] According to the embodiment of the present utility model, the rear tailgate inner panel assembly strengthens the vehicle rear tailgate inner panel by adopting a split reinforcing structure, which helps to improve the structural strength of the rear tailgate inner panel. Moreover, the split reinforcing plate has a simple structure and is easy to process and install.

[0006] According to some embodiments of the present invention, the rear door inner panel assembly includes a plurality of reinforcing plates, including a main reinforcing plate, an upper reinforcing plate and a lower reinforcing plate. The upper reinforcing plate and the lower reinforcing plate are both connected to the lateral outer side of the main reinforcing plate. The upper reinforcing plate and the lower reinforcing plate are distributed vertically. At least a portion of the strut reinforcing plate is located on the longitudinal rear side of the main reinforcing plate.

[0007] According to some embodiments of the present invention, in the rear door inner panel assembly, the area of ​​the upper reinforcing plate is smaller than the area of ​​the main reinforcing plate;

[0008] And / or, the area of ​​the lower reinforcing plate is smaller than the area of ​​the main reinforcing plate.

[0009] According to some embodiments of the present invention, in the rear door inner panel assembly, the strut reinforcing plate is located on the longitudinal rear side of the central region of the main reinforcing plate in the vertical direction.

[0010] According to some embodiments of the present utility model, in the rear door inner panel assembly, the area of ​​the upper reinforcing plate is smaller than the area of ​​the strut reinforcing plate;

[0011] And / or, the area of ​​the lower reinforcing plate is smaller than the area of ​​the strut reinforcing plate.

[0012] According to some embodiments of the present utility model, in the rear door inner panel assembly, the lateral inner edge of the upper reinforcing plate is connected to the upper region of the lateral outer edge of the strut reinforcing plate.

[0013] And / or, the inner lateral edge of the lower reinforcing plate is connected to the lower region of the outer lateral edge of the strut reinforcing plate.

[0014] According to some embodiments of the present invention, the rear door inner panel assembly has a mounting groove formed in the lateral outer region of the rear door inner panel. The mounting groove is recessed longitudinally inward, and at least a portion of the main reinforcing plate and at least a portion of the strut reinforcing plate are disposed within the mounting groove.

[0015] According to some embodiments of the present invention, the rear door inner panel assembly includes two sets of reinforcing structures and two sets of strut reinforcing plates, which are installed one-to-one on the lateral side areas of the rear door inner panel.

[0016] According to some embodiments of the present utility model, the thickness of the reinforcing plate in the rear door inner panel assembly is d1, and satisfies: 1.35mm≤d1≤1.45mm;

[0017] And / or, the thickness of the strut reinforcement plate is d2, and satisfies: 2.3mm≤d2≤2.7mm.

[0018] This utility model also proposes a vehicle.

[0019] The vehicle according to the present invention includes the rear tailgate inner panel assembly of any of the above embodiments.

[0020] The advantages of the vehicle and the aforementioned tailgate inner panel assembly compared to the prior art are the same and will not be repeated here.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1This is a schematic diagram of the structure of the rear door inner panel assembly according to an embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the rear door inner panel assembly according to an embodiment of the present utility model. Figure 2 ;

[0025] Figure 3 This is a front view of the reinforcing structure and strut reinforcing plate of an embodiment of this utility model.

[0026] Figure label:

[0027] Rear tailgate inner panel assembly 100,

[0028] Rear tailgate inner panel 1, mounting groove 11,

[0029] Reinforcing structure 2, main reinforcing plate 21, upper reinforcing plate 22, lower reinforcing plate 23,

[0030] 3. Support reinforcement plate. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The following is for reference. Figures 1-3 The rear tailgate inner panel assembly 100 according to an embodiment of the present utility model uses a split reinforcing structure 2 to strengthen the rear tailgate inner panel 1 of the vehicle, which helps to improve the structural strength of the rear tailgate inner panel 1. Moreover, the split reinforcing plate has a simple structure and is easy to process and install.

[0035] like Figure 1 and Figure 2 As shown, the tailgate inner panel assembly 100 according to an embodiment of the present invention includes: a tailgate inner panel 1, a reinforcing structure 2, and a strut reinforcing plate 3. It should be noted that the tailgate inner panel assembly 100 and the tailgate outer panel assembly can be jointly constructed as a tailgate. The tailgate inner panel 1 is one of the frames of the vehicle tailgate, providing strength and rigidity for the tailgate and supporting the tailgate outer panel and other structural accessories; it is typically made of metal and composite materials.

[0036] The reinforcing structure 2 can be installed on the outer surface of the inner tailgate panel 1. That is, the reinforcing structure 2 can be located between the inner tailgate panel 1 and the outer tailgate panel and fixedly connected to the inner tailgate panel 1. This allows the reinforcing structure 2 to strengthen the inner tailgate panel 1, thereby giving the vehicle's tailgate a higher structural strength and rigidity, and enhancing structural stability. Furthermore, the reinforcing structure 2 can be flexibly installed on the inner tailgate panel 1. In other words, the installation position and number of reinforcing structures 2 can be flexibly adjusted according to the different areas on the inner tailgate panel 1 that require reinforcement, thus meeting the vehicle's structural strength requirements for the inner tailgate panel 1.

[0037] The reinforcing structure 2 comprises multiple interconnected reinforcing plates. In other words, the reinforcing structure 2 adopts a split design and includes multiple reinforcing plates. The number of reinforcing plates can be set to two, three, or more, with flexible selection. During actual processing, the multiple reinforcing plates can be formed individually. It should be noted that the rear door inner panel 1 has a complex structural shape, i.e., it is not a completely planar structure. When the reinforcing structure 2 is connected to the rear door inner panel 1, it needs to fit as closely as possible to the surface of the rear door inner panel 1. The reinforcing structure 2 is constructed by including multiple reinforcing plates, each of which can be formed according to the contour shape of different areas of the rear door inner panel 1. This allows for separate design and processing of the shape, size, and structural strength of the multiple reinforcing plates, minimizing the processing difficulty of a single reinforcing plate and reducing processing costs.

[0038] Furthermore, during actual installation, multiple reinforcing plates can be installed sequentially on the inner panel 1 of the rear tailgate, thereby reducing the installation precision required when the reinforcing structure 2 is installed as a whole on the inner panel 1 of the rear tailgate. Alternatively, multiple reinforcing plates can be connected as a whole and installed together on the inner panel 1 of the rear tailgate. Alternatively, multiple reinforcing plates can be connected to the inner panel 1 of the rear tailgate separately and then fixed relatively, all of which can achieve relative fixation between the multiple reinforcing plates and the inner panel 1 of the rear tailgate.

[0039] Therefore, multiple reinforcing plates can collectively strengthen the rear tailgate inner panel 1, resulting in better reinforcement and improved overall stability of the rear tailgate inner panel assembly 100. This also increases material utilization, and the separate reinforcing plates are simple to process and easy to install. Furthermore, connecting and fixing multiple reinforcing plates reduces the structural stress generated when a single structural component is installed on the rear tailgate inner panel 1. Especially when this reinforcing structure 2 is installed on the rear tailgate inner panel 1 with a through-type taillight, the multiple reinforcing plates effectively disperse stress concentration in the through-type taillight area, preventing damage and deformation of the reinforcing plates during the molding process and improving the reliability of the reinforcing structure 2.

[0040] Furthermore, the strut reinforcement plate 3 is connected to the longitudinal rear side of multiple reinforcement plates. That is, after multiple reinforcement plates are connected to the inner rear door panel 1, the strut reinforcement plate 3 can be installed on these plates, allowing the multiple reinforcement plates to work together with the strut reinforcement plate 3 for structural reinforcement. It should be noted that the front side of the inner rear door panel 1 has a connection point for connecting to the rear door strut. The strut reinforcement plate 3 is located on the rear side of the inner rear door panel and directly opposite this connection point, enabling the strut reinforcement plate to structurally reinforce this connection point and the surrounding area. This ensures the structural stability of the connection point of the rear door strut and prevents deformation, ensuring that the rear door strut provides stable support between the vehicle body and the inner rear door panel 1. Specifically, one end of the tailgate support rod can press against the outer surface of the tailgate inner panel 1. It can be connected to the tailgate support rod by bolts through the support rod reinforcing plate 3 and the tailgate inner panel 1 and fixed to it, so that one end of the tailgate support rod is fixedly connected to the tailgate inner panel 1. Thus, by combining and installing the support rod reinforcing plate 3 and multiple reinforcing plates, the support stability of the tailgate support rod is improved.

[0041] Meanwhile, the strut reinforcement plate 3 can provide auxiliary reinforcement to multiple reinforcement plates, increasing the local thickness and rigidity of the reinforcement plate at the strut reinforcement plate 3, thereby improving the compressive and tensile strength of the reinforcement plate at that location, reducing the risk of deformation under stress, and optimizing the force distribution transmitted from the tailgate strut, preventing stress concentration on the reinforcement plate or tailgate inner panel 1, which could lead to cracking or deformation; furthermore, the strut reinforcement plate 3 can strengthen the tailgate strut, improving its rigidity and stability. Thus, the reinforcement plates and strut reinforcement plate 3 can mutually reinforce each other, thereby improving the overall stability of the tailgate inner panel assembly 100.

[0042] According to the embodiment of the present utility model, the rear door inner panel assembly 100 can improve the structural strength and stability of the rear door inner panel 1 by providing a reinforcing structure 2 and a strut reinforcing plate 3 on the rear door inner panel 1. The reinforcing structure 2 is a split design including multiple reinforcing plates. The multiple reinforcing plates can be designed with different shapes, sizes and materials. The structure is simple, easy to process and install, and helps to improve the utilization rate of materials.

[0043] In some embodiments, the plurality of reinforcing plates include a main reinforcing plate 21, an upper reinforcing plate 22, and a lower reinforcing plate 23. The upper reinforcing plate 22 and the lower reinforcing plate 23 are both connected to the lateral outer side of the main reinforcing plate 21, that is, the upper reinforcing plate 22 and the lower reinforcing plate 23 are both located on the side of the main reinforcing plate 21 away from the center of the rear door inner panel 1. In other words, the reinforcing structure 2 includes three reinforcing plates, one of which is the main reinforcing plate 21 that plays a major role in reinforcing the rear door inner panel 1, and the other two are the upper reinforcing plate 22 and the lower reinforcing plate 23 that provide auxiliary reinforcement to the rear door inner panel 1, respectively. The upper reinforcing plate 22 and the lower reinforcing plate 23 can be reinforced in the upper and lower regions of the lateral outer side of the main reinforcing plate 21, respectively. Meanwhile, the main reinforcing plate 21, the upper reinforcing plate 22, and the lower reinforcing plate 23 can be connected and cooperate with each other so that the main reinforcing plate 21, the upper reinforcing plate 22, and the lower reinforcing plate 23 can not only reinforce different areas of the rear tailgate inner panel 1 respectively, but also be connected into a whole to reinforce the rear tailgate inner panel 1 structurally, greatly improving the structural stability of the rear tailgate inner panel assembly 100.

[0044] Furthermore, at least a portion of the strut reinforcement plate 3 is located on the longitudinal rear side of the main reinforcement plate 21. It should be noted that the main reinforcement plate 21 can be directly opposite the rear side of the connection position of the tailgate strut, and the main reinforcement plate 21 and the strut reinforcement plate together reinforce the connection position to avoid the problem of excessive force on the tailgate inner panel 1 at the connection position with the tailgate strut, which would cause serious structural deformation. This ensures the support stability of the tailgate strut. At the same time, the strut reinforcement plate 3 can provide auxiliary reinforcement to the main reinforcement plate 21, thereby improving the overall stability of the tailgate inner panel assembly 100.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, most of the main reinforcing plate 21 can be installed on the rear side of the inner panel 1 of the rear door. The upper reinforcing plate 22 and the lower reinforcing plate 23 are installed vertically on the outer side of the main reinforcing plate 21. That is, the strut reinforcing plate 3 is connected and fixed to the main reinforcing plate 21, and the strut reinforcing plate 3 is located on the longitudinal rear side of the main reinforcing plate 21. Thus, the reinforcing structure 2 and the strut reinforcing plate 3 work together to strengthen the inner panel 1 of the rear door, thereby improving the strength and stability of the structure.

[0046] In some embodiments, the area of ​​the upper reinforcing plate 22 is smaller than the area of ​​the main reinforcing plate 21; and / or, the area of ​​the lower reinforcing plate 23 is smaller than the area of ​​the main reinforcing plate 21. That is, the area of ​​at least one of the upper reinforcing plate 22 and the lower reinforcing plate 23 can be set to be smaller than the area of ​​the main reinforcing plate 21. In other words, the structural area of ​​the main reinforcing plate 21 can be set to be larger than the areas of the upper reinforcing plate 22 and the lower reinforcing plate 23, so that its supporting area for the inner panel 1 of the rear door is larger, so that the main reinforcing plate 21 can provide the main reinforcing effect for the inner panel 1 of the rear door. Thus, when the inner panel 1 of the rear door is subjected to force, the force on the inner panel 1 of the rear door can be evenly distributed through the main reinforcing plate 21, avoiding local stress concentration that could lead to deformation or cracking of the reinforcing plate.

[0047] In actual use, when the inner panel 1 of the rear door is deformed by external impact, the reinforcing structure 2 shares the impact force from the inner panel 1 of the rear door. The main reinforcing plate 21, which has a larger area, covers most of the area at the reinforcing position and bears most of the impact force, while the upper reinforcing plate 22 and the lower reinforcing plate 23 bear the remaining impact force, thereby preventing the inner panel 1 of the rear door from deforming. At the same time, the main reinforcing plate 21 can also provide structural support for the strut reinforcing plate 3. Thus, the reinforcing structure 2 can effectively strengthen the strut reinforcing plate 3 and the inner panel 1 of the rear door, allowing the reinforcing plate to fully exert its reinforcing performance and improve the overall strength and stability.

[0048] In some embodiments, the strut reinforcement plate 3 is located on the longitudinal rear side of the central region of the main reinforcement plate 21 in the vertical direction. That is, the installation and mating position of the strut reinforcement plate 3 and the main reinforcement plate 21 is located in the central region of the main reinforcement plate 21. In this way, when the strut reinforcement plate 3 is fixedly installed on the tailgate strut, the strut reinforcement plate 3 can share the force transmitted from the tailgate strut to the tailgate inner panel 1 and the main reinforcement plate 21, thereby preventing the main reinforcement plate 21 from deforming or cracking. This allows the main reinforcement plate 21 to fully realize its reinforcing effect on the tailgate inner panel 1, and the main reinforcement plate 21 can also provide auxiliary reinforcement to the strut reinforcement plate 3, thereby improving the overall stability of the tailgate inner panel assembly 100. At the same time, the strut reinforcement plate 3 can strengthen the tailgate strut to improve its rigidity and stability.

[0049] Specifically, such as Figure 1 and Figure 2As shown, the strut reinforcement plate 3 is located longitudinally rearward in the central vertical region of the main reinforcement plate 21. In actual use, the strut reinforcement plate 3 can share the force transmitted from the tailgate strut to the main reinforcement plate 21, thereby strengthening the main reinforcement plate 21. This prevents the supporting force from directly and excessively acting on the tailgate inner panel 1, avoiding severe deformation of the tailgate inner panel 1 under external impact. Thus, through the cooperation of the main reinforcement plate 21 and the strut reinforcement plate 3, the strengthening effect on the tailgate inner panel assembly 100 can be greatly improved, enhancing the structural strength and stability of the tailgate inner panel 1.

[0050] In some embodiments, the area of ​​the upper reinforcing plate 22 is smaller than the area of ​​the strut reinforcing plate 3; and / or, the area of ​​the lower reinforcing plate 23 is smaller than the area of ​​the strut reinforcing plate 3. That is, at least one of the areas of the upper reinforcing plate 22 and the lower reinforcing plate 23 can be set to be smaller than the area of ​​the strut reinforcing plate 3. This allows the upper reinforcing plate 22 and the lower reinforcing plate 23 to be connected to the strut reinforcing plate 3 respectively, so that the strut reinforcing plate 3 can provide support for the upper reinforcing plate 22 and the lower reinforcing plate 23 at their respective edges. This enables the upper reinforcing plate 22 and the lower reinforcing plate 23 to withstand greater external impact forces, thereby improving the structural strength and stability of the rear door inner panel 1.

[0051] Specifically, such as Figure 1 and Figure 2 As shown, the main reinforcing plate 21, the upper reinforcing plate 22, and the lower reinforcing plate 23 are respectively installed on the inner surface of the rear door inner panel 1 to structurally reinforce the rear door inner panel 1. Among them, the area of ​​the strut reinforcing plate 3 is larger than the area of ​​the upper reinforcing plate 22 and the lower reinforcing plate 23, and the edge of the upper reinforcing plate 22 is connected to the edge of the strut reinforcing plate 3 and the edge of the lower reinforcing plate 23 is connected to the edge of the strut reinforcing plate 3. Thus, when the rear door inner panel 1 is subjected to external impact force, the strut reinforcing plate 3 can provide support for the upper reinforcing plate 22 and the lower reinforcing plate 23 at the edge, so that the reinforcing plate will not deform or crack when subjected to external impact force, and maintain the reinforcing effect on the rear door inner panel 1.

[0052] In some embodiments, the inner lateral edge of the upper reinforcing plate 22 is connected to the upper region of the outer lateral edge of the strut reinforcing plate 3; that is, the upper reinforcing plate 22 is connected to the upper region of the strut reinforcing plate 3.

[0053] And / or, in other embodiments, the inner lateral edge of the lower reinforcing plate 23 is connected to the lower region of the outer lateral edge of the strut reinforcing plate 3, that is, the lower reinforcing plate 23 is connected to the lower region of the strut reinforcing plate 3. Thus, the strut reinforcing plate 3 provides support for the upper reinforcing plate 22 and the lower reinforcing plate 23 in its upper and lower regions respectively. The upper reinforcing plate 22 and the lower reinforcing plate 23 can provide better reinforcement for the rear door inner panel 1 at the corresponding positions, and the upper reinforcing plate 22 and the lower reinforcing plate 23 can share the force transmitted from the rear door strut to the strut reinforcing plate 3. Therefore, the upper reinforcing plate 22 and the lower reinforcing plate 23 can mutually reinforce the strut reinforcing plate 3, thereby improving the overall stability of the rear door inner panel assembly 100, and the strut reinforcing plate 3 can strengthen the rear door strut, improving the stiffness and stability of the rear door strut.

[0054] Specifically, such as Figure 1 and Figure 2 As shown, the inner lateral side of the upper reinforcing plate 22 is connected to the outer lateral side of the upper part of the strut reinforcing plate 3, and the inner lateral side of the lower reinforcing plate 23 is connected to the outer lateral side of the lower part of the strut reinforcing plate 3. This connects the strut reinforcing plate 3 to the upper reinforcing plate 22 and the lower reinforcing plate 23 respectively, providing support for both. In actual use, when the inner panel 1 of the rear door is subjected to external impact, the impact force is transmitted from the inner panel 1 to the reinforcing plate and then to the strut reinforcing plate 3. In other words, the upper reinforcing plate 22 and the lower reinforcing plate 23 transmit the impact force to the strut reinforcing plate 3, which provides support for both. Therefore, the upper reinforcing plate 22 and the lower reinforcing plate 23 can avoid deformation and cracking, thereby improving the structural strength and stability of the inner panel 1 of the rear door.

[0055] In some embodiments, a mounting groove 11 is formed in the lateral outer region of the inner panel 1 of the rear tailgate. For example, the mounting groove 11 may be located in the left side near the edge region of the inner panel 1 of the rear tailgate, or the left and right sides near the edge regions of the inner panel 1 of the rear tailgate may both have mounting grooves 11. The mounting groove 11 is recessed longitudinally inward to form a rearwardly open groove, and at least a portion of the main reinforcing plate 21 and at least a portion of the strut reinforcing plate 3 are disposed within the mounting groove 11.

[0056] In other words, the main reinforcing plate 21 is installed to the inner panel 1 of the rear door at the mounting groove 11. The mounting groove 11 makes the installation of the main reinforcing plate 21 more convenient and provides more installation space for the main reinforcing plate 21 and the support rod reinforcing plate 3. By installing the main reinforcing plate 21 with the inner panel 1 of the rear door at the mounting groove 11, the contact area between the two can be increased and the connection strength can be enhanced.

[0057] Meanwhile, a sealing strip is installed on the rear door frame of the vehicle. When the rear door is closed, the sealing strip can extend into the mounting groove 11. In other words, the mounting groove 11 is a reserved space for the sealing strip to extend into, thereby achieving the effects of sealing, waterproofing and sound insulation.

[0058] In some embodiments, both the reinforcing structure 2 and the strut reinforcing plate 3 are configured in two sets, with the two sets of reinforcing structures 2 and the two sets of strut reinforcing plates 3 installed one-to-one on the lateral side areas of the rear tailgate inner panel 1. That is, both sides of the rear tailgate inner panel 1 can be reinforced with reinforcing structures 2 and strut reinforcing plates 3, thereby improving the overall structural strength of the rear tailgate inner panel assembly 100. Specifically, one set of reinforcing structure 2 and one set of strut reinforcing plates 3 are respectively provided on the left and right sides of the rear tailgate inner panel 1 to increase the strength of the lateral side areas of the rear tailgate inner panel 1, enabling it to withstand greater external impact forces. Furthermore, greater structural strength can be achieved by using a smaller number of reinforcing structures 2 and strut reinforcing plates 3, which helps reduce costs.

[0059] In some embodiments, the thickness of the reinforcing plate is d1, and satisfies: 1.35mm ≤ d1 ≤ 1.45mm. For example, the thickness of the reinforcing plate can be set to 1.35mm, 1.37mm, 1.39mm, 1.40mm, 1.42mm, 1.44mm, 1.45mm, or other dimensions between 1.35mm and 1.45mm. Therefore, the reinforcing plate can provide sufficient tensile strength and yield strength for the inner panel 1 of the rear door, effectively improving the impact resistance of the inner panel 1. Furthermore, the reinforcing plate is lightweight, which can improve material utilization while meeting lightweight requirements, thus reducing costs. At the same time, it facilitates the processing and forming of the reinforcing plate.

[0060] And / or, in other embodiments, the thickness of the strut reinforcing plate 3 is d2, and satisfies: 2.3mm ≤ d2 ≤ 2.7mm. For example, the thickness of the strut reinforcing plate 3 can be set to 2.3mm, 2.5mm, 2.6mm, 2.7mm, or other dimensions between 2.3mm and 2.7mm. Therefore, the strut reinforcing plate 3 can effectively disperse the external impact force transmitted by the reinforcing plate, improve connection reliability, and meet lightweight requirements.

[0061] It should be noted that the reinforcing plate and the strut reinforcing plate 3 can be made of HC220 steel, and a galvanized coating can be added to their surfaces. HC220 steel is a cold-rolled low-alloy high-strength steel with good mechanical properties, meeting the requirements for lightweighting and easily stamped into complex shapes. When made into the strut reinforcing plate 3, it has high rigidity and can provide greater support for the reinforcing plate. At the same time, the galvanized coating on the surface of the reinforcing plate and the strut reinforcing plate 3 prevents corrosion of the reinforcing plate and the strut reinforcing plate 3 when the inner panel 1 of the rear door is in long-term contact with rainwater, thereby avoiding a decrease in structural strength.

[0062] This utility model also proposes a vehicle.

[0063] The vehicle according to the present invention includes a tailgate inner panel assembly 100 of any of the above embodiments. The structural strength and stability of the tailgate inner panel 1 are improved by providing a reinforcing structure 2 and a strut reinforcing plate 3 on the tailgate inner panel 1. The reinforcing structure 2 is a split design with multiple reinforcing plates, which is simple in structure, easy to process and install. Furthermore, the multiple reinforcing plates can be designed with different shapes, sizes, and materials, which helps to improve material utilization.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rear tailgate inner panel assembly, characterized in that, include: Rear door inner panel (1); The reinforcing structure (2) includes a plurality of interconnected reinforcing plates, which are respectively connected to the longitudinal rear side of the inner panel (1) of the rear door; A strut reinforcement plate (3) is connected to the longitudinal rear side of a plurality of reinforcement plates.

2. The rear tailgate inner panel assembly according to claim 1, characterized in that, The plurality of reinforcing plates include a main reinforcing plate (21), an upper reinforcing plate (22) and a lower reinforcing plate (23). The upper reinforcing plate (22) and the lower reinforcing plate (23) are both connected to the lateral outer side of the main reinforcing plate (21). The upper reinforcing plate (22) and the lower reinforcing plate (23) are distributed vertically. At least a portion of the strut reinforcing plate (3) is located on the longitudinal rear side of the main reinforcing plate (21).

3. The rear tailgate inner panel assembly according to claim 2, characterized in that, The area of ​​the upper reinforcing plate (22) is smaller than the area of ​​the main reinforcing plate (21); And / or, the area of ​​the lower reinforcing plate (23) is smaller than the area of ​​the main reinforcing plate (21).

4. The rear tailgate inner panel assembly according to claim 2, characterized in that, The strut reinforcement plate (3) is located on the longitudinal rear side of the central region of the main reinforcement plate (21) in the vertical direction.

5. The rear tailgate inner panel assembly according to claim 2, characterized in that, The area of ​​the upper reinforcing plate (22) is smaller than the area of ​​the strut reinforcing plate (3); And / or, the area of ​​the lower reinforcing plate (23) is smaller than the area of ​​the strut reinforcing plate (3).

6. The rear tailgate inner panel assembly according to claim 2, characterized in that, The inner lateral edge of the upper reinforcing plate (22) is connected to the upper region of the outer lateral edge of the strut reinforcing plate (3); And / or, the inner lateral edge of the lower reinforcing plate (23) is connected to the lower region of the outer lateral edge of the strut reinforcing plate (3).

7. The rear tailgate inner panel assembly according to claim 2, characterized in that, The outer lateral region of the inner panel (1) of the rear door has a mounting groove (11) which is recessed longitudinally. At least a portion of the main reinforcing plate (21) and at least a portion of the strut reinforcing plate (3) are located in the mounting groove (11).

8. The rear tailgate inner panel assembly according to any one of claims 1-7, characterized in that, The reinforcing structure (2) and the strut reinforcing plate (3) are both set in two groups, and the two groups of the reinforcing structure (2) and the two groups of strut reinforcing plates (3) are installed one-to-one on the horizontal side areas of the inner panel (1) of the rear door.

9. The rear tailgate inner panel assembly according to any one of claims 1-7, characterized in that, The thickness of the reinforcing plate is d1, and satisfies: 1.35mm≤d1≤1.45mm; And / or, the thickness of the strut reinforcement plate (3) is d2, and satisfies: 2.3mm≤d2≤2.7mm.

10. A vehicle, characterized in that, Includes the rear tailgate inner panel assembly as described in any one of claims 1-9.

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