A tailgate hinge mounting plate assembly structure, a side-opening tailgate assembly and a vehicle

Abstract

This utility model provides a tailgate hinge mounting plate assembly structure, a side-opening tailgate component, and a vehicle, including a tailgate hinge upper mounting plate, a tailgate frame lower right outer panel reinforcing plate, and a tailgate upper hinge nut plate. The key feature is that the tailgate hinge upper mounting plate, the tailgate frame lower right outer panel reinforcing plate, and the tailgate upper hinge nut plate are sequentially connected end-to-end, forming a complete, box-shaped, closed cavity structure with stable force transmission. The tailgate hinge upper mounting plate has tailgate hinge mounting points, through which the tailgate hinge upper mounting plate and the tailgate upper hinge nut plate are securely connected. The addition of the tailgate upper hinge nut plate at the tailgate hinge mounting points, extending through both the upper and lower hinge mounting points, and forming a complete box-shaped closed structure with the tailgate frame lower right outer panel reinforcing plate and the tailgate hinge mounting plate, ensures seamless force transmission, improves the vehicle body strength at the tailgate hinge, and guarantees the normal operation of the tailgate opening and closing function.

Description

Technical Field

[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a tailgate hinge mounting plate assembly structure, a side-opening tailgate component, and a vehicle. Background Technology

[0002] In vehicles with non-load-bearing body structures (such as rugged SUVs and pickup trucks), side-opening tailgates have become a common design for off-road vehicles and multi-purpose commercial vehicles due to their small space occupation and flexible opening direction. Unlike traditional top-hinged tailgates, side-opening tailgates have their rotation axis perpendicular to the ground, requiring the hinge systems on both sides to withstand greater vertical torque loads when opening. Especially during vehicle operation, the tailgate is subjected to reciprocating vibration loads from road bumps over a long period of time, and under extreme conditions (such as off-road impacts, a fully loaded tailgate, or emergency braking), a dynamic torque amplification effect is generated.

[0003] However, as a critical node for load transfer between the tailgate and the vehicle frame, insufficient structural strength at the hinge mounting point will lead to two levels of problems: Firstly, local deformation at the mounting point can cause the tailgate to sag overall, resulting in insufficient compression of the sealing strip and sealing failures such as water and dust leakage; secondly, long-term accumulation of plastic deformation may cause the hinge axis to shift, leading to abnormal noises when opening and closing the tailgate or even failure of the locking mechanism. Therefore, non-load-bearing side-opening tailgates often have high performance requirements for the hinge mounting point to prevent quality problems such as tailgate sagging (difficulty in opening and closing), water leakage, and abnormal noises caused by insufficient hinge mounting point strength. This utility model provides a box-shaped enclosed tailgate hinge mounting plate assembly structure, which improves the rigidity of the mounting point while ensuring the matching of the tailgate hinge installation. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a tailgate hinge mounting plate assembly structure, a side-opening tailgate component and vehicle, which solves the technical problems that the tailgate will sink due to insufficient structural strength of the vehicle body at the tailgate hinge mounting point, resulting in difficulty in opening and closing the tailgate, water leakage from the tailgate seal, and abnormal noise from the tailgate.

[0005] To achieve the above objectives, this utility model provides a tailgate hinge mounting plate assembly structure, including a tailgate hinge upper mounting plate, a tailgate frame lower right outer plate reinforcing plate, and a tailgate upper hinge nut plate. The tailgate hinge upper mounting plate, tailgate frame lower right outer plate reinforcing plate, and tailgate upper hinge nut plate are connected end to end in sequence to form a complete box-shaped closed cavity structure with stable force transmission.

[0006] Optionally, the tailgate hinge mounting plate is provided with a tailgate hinge mounting point, through which the tailgate hinge mounting plate and the tailgate hinge nut plate are fastened together.

[0007] Optionally, the tailgate hinge mounting points include upper tailgate hinge mounting points and lower tailgate hinge mounting points distributed longitudinally along the upper mounting plate of the tailgate hinge.

[0008] Optionally, the upper hinge position of the upper hinge mounting point of the tailgate is further provided with a tailgate hinge upper support plate, which is vertically connected to the upper mounting plate of the tailgate hinge, and the periphery of the upper support plate of the tailgate hinge is also connected to the reinforcing plate of the lower right outer panel of the tailgate frame and the upper hinge nut plate of the tailgate.

[0009] Optionally, the lower hinge position of the tailgate lower hinge mounting point is further provided with a tailgate hinge lower support plate, which is vertically connected to the tailgate hinge upper mounting plate, and the periphery of the tailgate hinge lower support plate is also connected to the tailgate frame lower right outer panel reinforcement plate and the tailgate upper hinge nut plate.

[0010] Optionally, the upper side of the mounting plate on the tailgate hinge is provided with multiple rows of welding points, which are welded to the support plate on the tailgate hinge.

[0011] Optionally, the lower side of the mounting plate on the tailgate hinge is also provided with multiple rows of welding points, which are welded to the lower support plate of the tailgate hinge.

[0012] A side-opening tailgate assembly includes the aforementioned tailgate hinge mounting plate assembly structure.

[0013] A vehicle comprising the aforementioned tailgate hinge mounting plate assembly structure.

[0014] One of the above technical solutions has the following advantages or beneficial effects:

[0015] This invention adds a tailgate upper hinge nut plate at the tailgate hinge mounting point, extending through both the upper and lower hinge mounting points. It forms a complete box-shaped closed structure with the tailgate frame lower right outer panel reinforcement plate and the tailgate hinge mounting plate, ensuring seamless stress transmission and improving the body strength at the tailgate hinge point, thus guaranteeing the normal operation of the tailgate opening and closing function. A support plate is added at the middle position of each of the upper and lower tailgate hinge mounting points to further enhance the rigidity of the tailgate hinge mounting points and improve NVH performance. Attached Figure Description

[0016] Figure 1 Schematic diagram of the tailgate hinge mounting plate assembly;

[0017] Figure 2 Exploded view of the tailgate hinge mounting plate assembly;

[0018] Figure 3 Schematic diagram of cross section AA of the tailgate hinge mounting plate assembly structure;

[0019] Figure 4 This is a schematic diagram of the BB section of the tailgate hinge mounting plate assembly structure. Detailed Implementation

[0020] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] like Figure 1 and 2 As shown, this utility model embodiment provides a tailgate hinge mounting plate assembly structure, including a tailgate hinge upper mounting plate 1, a tailgate frame lower right outer panel reinforcing plate 2, and a tailgate upper hinge nut plate 3, as shown. Figure 1 and 2 The figures shown are a schematic diagram and an exploded view of the tailgate hinge mounting plate assembly. The box-shaped enclosed tailgate hinge mounting plate assembly described in this invention comprises a tailgate hinge upper mounting plate 1, a tailgate frame lower right outer panel reinforcing plate 2, and a tailgate upper hinge nut plate 3, all welded together. The tailgate hinge upper mounting plate 1, tailgate frame lower right outer panel reinforcing plate 2, and tailgate upper hinge nut plate 3 are sequentially connected end-to-end, together forming a stable, complete box-shaped enclosed cavity structure.

[0022] The tailgate hinge mounting plate 1 has tailgate hinge mounting points, which securely connect the tailgate hinge mounting plate 1 and the tailgate hinge nut plate 3. The tailgate hinge nut plate 3, extending through both the upper and lower hinge mounting points, forms a complete box-shaped closed structure with the tailgate frame lower right outer panel reinforcing plate 2 and the tailgate hinge mounting plate 1. This ensures a seamless force transmission structure, continuous and stable cavity, and improved performance of the tailgate hinge mounting points. The tailgate hinge mounting points include upper tailgate hinge mounting points 11 and lower tailgate hinge mounting points 12, distributed longitudinally along the tailgate hinge mounting plate 1. The box-shaped closed cavity formed by the tailgate hinge mounting plate 1, the tailgate frame lower right outer panel reinforcing plate 2, and the tailgate hinge nut plate 3 increases the torsional stiffness of the mounting point area by approximately 40%-60% compared to traditional single-layer plate structures, effectively suppressing local deformation during tailgate opening and closing and improving torsional stiffness.

[0023] At the upper hinge mounting point 11 of the tailgate, there is also a tailgate hinge upper support plate 4. The tailgate hinge upper support plate 4 is vertically connected to the tailgate hinge upper mounting plate 1, and the periphery of the tailgate hinge upper support plate 4 is also connected to the tailgate frame lower right outer panel reinforcing plate 2 and the tailgate upper hinge nut plate 3. At the lower hinge mounting point 12 of the tailgate, there is also a tailgate hinge lower support plate 5. The tailgate hinge lower support plate 5 is vertically connected to the tailgate hinge upper mounting plate 1, and the periphery of the tailgate hinge lower support plate 5 is also connected to the tailgate frame lower right outer panel reinforcing plate 2 and the tailgate upper hinge nut plate 3. An upper tailgate hinge support plate 4 is added at the upper tailgate hinge position, and a lower tailgate hinge support plate 5 is added at the lower tailgate hinge position. These support plates, together with the upper tailgate hinge nut plate 3, the lower right outer panel reinforcement plate 2 of the tailgate frame, and the tailgate hinge mounting plate 1, form multiple rows of welded connections, further enhancing the body rigidity at the tailgate hinge mounting points. The longitudinally distributed layout of the upper tailgate hinge mounting points 11 and the lower tailgate hinge mounting points 12, combined with the support system formed by the upper tailgate hinge support plate 4 and the lower tailgate hinge support plate 5, decomposes the vertical load into a combined transmission mode of lateral shear force and longitudinal tensile and compressive forces. Bench tests have verified that this reduces the peak stress.

[0024] like Figure 3 and 4 As shown, the upper side of the tailgate hinge mounting plate 1 has multiple rows of welding points 13, which are welded to the upper support plate 4 of the tailgate hinge. The lower side of the tailgate hinge mounting plate 1 also has multiple rows of welding points 13, which are welded to the lower support plate 5 of the tailgate hinge. The lower part of the tailgate hinge mounting plate 1 features a double-row welding point structure design, increasing its connection with the lower vehicle body and effectively improving mechanical transmission stability. Furthermore, it is preferable to arrange the multiple rows of welding points 13 with a gradient spacing (a gradient decrease of 30-50mm is recommended), combined with laser welding technology (with penetration depth controlled at 80%-120% of the plate thickness). Finite element analysis shows that this structure exhibits small plastic deformation under load, thus optimizing fatigue life.

[0025] A side-opening tailgate assembly is proposed, including the tailgate hinge mounting plate assembly structure described above. The box-shaped closed tailgate hinge mounting plate assembly structure described in the above embodiment consists of a tailgate hinge upper mounting plate 1, a tailgate frame lower right outer panel reinforcing plate 2, a tailgate upper hinge nut plate 3, a tailgate hinge upper support plate 4, and a tailgate hinge lower support plate 5. These components are welded together to form a complete box-shaped closed structure. The force transmission structure is uninterrupted, the cavity is continuous and stable, and the performance of the tailgate hinge mounting point is improved.

[0026] A vehicle is also proposed, including the aforementioned tailgate hinge mounting plate assembly structure. This vehicle is a non-load-bearing body structure, such as a rugged SUV or pickup truck. The side-opening tailgate adopts the box-shaped closed tailgate hinge mounting plate assembly structure described in the above embodiments. This not only solves the technical problem that local deformation of the mounting point will cause the tailgate to sink as a whole, but also reduces the technical problem that the hinge axis may be offset due to the accumulation of plastic deformation.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A tailgate hinge mounting plate assembly structure, comprising a tailgate hinge upper mounting plate, a tailgate frame lower right outer panel reinforcing plate, and a tailgate upper hinge nut plate, characterized in that, The tailgate hinge mounting plate, the tailgate frame lower right outer plate reinforcing plate, and the tailgate hinge nut plate are connected end to end to form a complete box-shaped closed cavity structure with stable force transmission.

2. The tailgate hinge mounting plate assembly structure according to claim 1, characterized in that, The tailgate hinge mounting plate is provided with a tailgate hinge mounting point, through which the tailgate hinge mounting plate and the tailgate hinge nut plate are fastened together.

3. The tailgate hinge mounting plate assembly structure according to claim 2, characterized in that, The tailgate hinge mounting points include upper tailgate hinge mounting points and lower tailgate hinge mounting points, which are distributed longitudinally along the upper mounting plate of the tailgate hinge.

4. The tailgate hinge mounting plate assembly structure according to claim 3, characterized in that, The upper hinge position of the tailgate upper hinge mounting point is also provided with a tailgate hinge upper support plate. The tailgate hinge upper support plate is vertically connected to the tailgate hinge upper mounting plate, and the periphery of the tailgate hinge upper support plate is also connected to the lower right outer panel reinforcement plate of the tailgate frame and the tailgate upper hinge nut plate.

5. The tailgate hinge mounting plate assembly structure according to claim 3, characterized in that, The lower hinge position of the tailgate lower hinge mounting point is also provided with a tailgate hinge lower support plate. The tailgate hinge lower support plate is vertically connected to the tailgate hinge upper mounting plate, and the periphery of the tailgate hinge lower support plate is also connected to the tailgate frame lower right outer panel reinforcement plate and the tailgate upper hinge nut plate.

6. The tailgate hinge mounting plate assembly structure according to claim 4, characterized in that, The upper side of the mounting plate on the tailgate hinge has multiple rows of welding points, which are welded to the upper support plate of the tailgate hinge.

7. The tailgate hinge mounting plate assembly structure according to claim 5, characterized in that, The lower side of the mounting plate on the tailgate hinge is also provided with multiple rows of welding points, which are welded to the lower support plate of the tailgate hinge.

8. A side-opening tailgate assembly, characterized in that, Includes the tailgate hinge mounting plate assembly structure as described in any one of claims 1-7.

9. A vehicle, characterized in that, Includes the tailgate hinge mounting plate assembly structure as described in any one of claims 1-7.

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