Back door mounting structure and vehicle

Abstract

This application relates to the field of tailgate installation technology, disclosing a tailgate installation structure and a vehicle. The tailgate installation structure provided in this application includes a pillar, a crossbeam, and a reinforcing assembly. The pillar includes an inner pillar plate and an outer pillar plate, with the outer pillar plate disposed on the inner pillar plate. The crossbeam includes an inner crossbeam plate and an outer crossbeam plate, with the inner crossbeam plate connected to the inner pillar plate. On the side of the outer pillar plate facing away from the inner pillar plate, the outer crossbeam plate and the outer pillar plate have an overlapping area. The reinforcing assembly includes a first reinforcing plate and a second reinforcing plate. The first reinforcing plate and the inner pillar plate together define a first cavity, which is opposite to the overlapping area. The first reinforcing plate has a mounting portion for installing the tailgate. The second reinforcing plate is located between the first reinforcing plate and the outer pillar plate, and connects the first reinforcing plate and the outer pillar plate. This application embodiment improves the structural strength and rigidity of the tailgate installation foundation, thereby improving the durability of the tailgate.

Description

Technical Field

[0001] This application relates to the field of tailgate installation technology, and more particularly to a tailgate installation structure and vehicle. Background Technology

[0002] In vehicles, the tailgate is an important opening and closing component, and the reliability of its connection with the vehicle body directly affects the overall performance and safety of the vehicle.

[0003] In related technologies, the tailgate of a car is movably connected to the vehicle body to meet the opening and closing requirements of the tailgate. However, the structure on which the tailgate is mounted on the vehicle body has low rigidity, resulting in low durability of the tailgate. Utility Model Content

[0004] In view of this, the present application provides a tailgate mounting structure and vehicle, which improves the rigidity and structural strength of the tailgate mounting structure at the tailgate mounting position, thereby improving the durability of the tailgate. At the same time, it can also effectively prevent the tailgate from sagging, making abnormal noises and other problems.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] In one aspect, embodiments of this application provide a rear door mounting structure.

[0007] The rear door mounting structure provided in this application embodiment includes:

[0008] A column, the column comprising an inner plate and an outer plate, the outer plate being disposed on the inner plate;

[0009] A crossbeam, comprising an inner plate and an outer plate, wherein the inner plate is connected to the inner plate of the column; the outer plate is disposed on the inner plate, and the outer plate and the outer plate are located on the same side of the inner plate, and on the side of the outer plate away from the inner plate, the outer plate and the outer plate have an overlapping area.

[0010] The reinforcing assembly includes a first reinforcing plate and a second reinforcing plate. The first reinforcing plate is located on the side of the inner plate of the column facing the outer plate of the column, and together with the inner plate of the column, defines a first cavity, which is opposite to the overlapping area. The first reinforcing plate has a mounting portion for mounting a rear door. The second reinforcing plate is located between the first reinforcing plate and the outer plate of the column, and connects the first reinforcing plate and the outer plate of the column. Furthermore, the second reinforcing plate, the outer plate of the column, and the outer plate of the crossbeam are all provided with a clearance structure, which is used to expose the mounting portion to the outside of the crossbeam.

[0011] The tailgate mounting structure of this application embodiment enables the tailgate to be installed on the tailgate mounting structure through the mounting portion on the first reinforcing plate. Furthermore, the first cavity is defined by the first reinforcing plate and the inner plate of the pillar. Compared to a plate-shaped reinforcing member, the first cavity has a larger moment of inertia. Moreover, when the tailgate is installed on the tailgate mounting structure, the stress can be evenly distributed along the walls of the first cavity when subjected to external force, thereby reducing the possibility of deformation of the first reinforcing plate due to excessive local stress, and improving the structural strength and rigidity of the tailgate mounting structure around the mounting portion. In addition, since the second reinforcing plate is located between the first reinforcing plate and the outer plate of the column, and connects the first reinforcing plate and the outer plate of the column, as well as the avoidance structure on the second reinforcing plate, the outer plate of the column and the outer plate of the crossbeam, it ensures that the tailgate can be installed in the mounting part and realizes the installation of the tailgate on the tailgate mounting structure. At the same time, the second reinforcing plate also enhances the connection strength between the first reinforcing plate and the outer plate of the column, making the connection between the entire reinforcing assembly and the column and crossbeam more stable. It can further reduce the situation where the first reinforcing plate is easily deformed under stress, so as to further improve the structural strength and rigidity of the tailgate mounting structure around the mounting part.

[0012] Therefore, this embodiment, through the setting of the first cavity defined by the first reinforcing plate, the second reinforcing plate, and the inner plate of the column, can effectively improve the structural strength and rigidity of the tailgate mounting structure around the mounting part, thereby improving the durability of the tailgate and effectively avoiding problems such as tailgate sagging and abnormal noise caused by insufficient rigidity of the tailgate mounting structure around the mounting part.

[0013] In one possible implementation of this application, the outer plate of the beam and the outer plate of the column are connected to each other in the overlapping area.

[0014] In one possible implementation of this application, the avoidance structures on the second reinforcing plate, the outer plate of the column, and the outer plate of the beam are all arranged opposite to the mounting part.

[0015] In one possible implementation of this application, the projection of the mounting part onto the avoidance structure is located within the avoidance structure.

[0016] In one possible implementation of this application, the first reinforcing plate includes a mounting portion and a plurality of connecting portions, the plurality of connecting portions surrounding the periphery of the mounting portion and connected to the inner plate of the column;

[0017] There is a gap between the mounting part and the inner plate of the column, and the mounting part, the connecting part and the inner plate of the column together form a first cavity.

[0018] In one possible implementation of this application, a portion of the second reinforcing plate, together with the first reinforcing plate and the inner plate of the column, defines a second cavity, the second cavity being located on one side of the first cavity.

[0019] In one possible implementation of this application, the second reinforcing plate has an adhesive portion, a first bending portion, and a second bending portion. The adhesive portion is located between the mounting portion and the outer plate of the column, and connects the mounting portion and the outer plate of the column.

[0020] The first bend and the second bend are located on different sides of the mounting portion in the circumferential direction and are connected. The first bend is connected to at least a portion of the connecting portion on the side away from the inner plate of the column, and the second bend is connected to the inner plate of the column.

[0021] The first bend, the second bend, the first reinforcing plate, and the inner plate of the column together form the second cavity.

[0022] In one possible implementation of this application, a portion of the second bend is also sandwiched between the inner plate of the column and the outer plate of the beam to connect the inner plate of the column and the outer plate of the beam.

[0023] In one possible implementation of this application, the connecting portion adjacent to the inner plate of the beam is also sandwiched between the inner plate of the beam and the inner plate of the column, and is connected to the inner plate of the beam and the inner plate of the column.

[0024] Secondly, embodiments of this application provide a vehicle including a tailgate and the aforementioned tailgate mounting structure, wherein the tailgate is movably mounted on the mounting structure of the tailgate mounting structure.

[0025] This application provides a vehicle that, due to having the aforementioned tailgate mounting structure, also has the effect of a tailgate mounting structure. That is, the first cavity is defined by the first reinforcing plate and the inner plate of the pillar, which improves the structural strength and rigidity of the tailgate mounting base, thereby improving the installation stability of the tailgate and thus helping to improve the durability of the tailgate. Attached Figure Description

[0026] Figure 1 A schematic diagram of the rear door installation structure provided in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram showing the unfolded installation structure of the rear door provided in an embodiment of this application;

[0028] Figure 3 A partial cross-sectional schematic diagram of the overlapping area of ​​the rear door mounting structure provided in the embodiments of this application;

[0029] Figure 4 This is a cross-sectional schematic diagram of the rear door mounting structure provided in an embodiment of this application;

[0030] Figure 5 A cross-sectional schematic diagram of the connected state of the rear door mounting structure provided in the embodiment of this application;

[0031] Figure 6 A schematic diagram of the installation of the reinforcing components of the rear door mounting structure provided in the embodiments of this application;

[0032] Figure 7 for Figure 6 A schematic diagram of the structure without the second reinforcing plate.

[0033] Figure label:

[0034] 10 - First cavity; 20 - Second cavity; 30 - Overlapping area; 40 - Avoidance structure;

[0035] 100 - Column; 110 - Inner panel of column; 120 - Outer panel of column;

[0036] 200 - Horizontal beam; 210 - Inner plate of the horizontal beam; 220 - Outer plate of the horizontal beam;

[0037] 300 - Reinforcing component; 310 - First reinforcing plate; 311 - Mounting part; 312 - Connecting part; 313 - Flanged part; 320 - Second reinforcing plate; 321 - First bending part; 322 - Second bending part; 323 - Fitting part. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0039] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0040] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0041] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0042] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0043] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0044] The vehicle mentioned in this application can refer to large vehicles, small vehicles, special-purpose vehicles, etc. For example, according to vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. Generally, a vehicle is equipped with wheels, a power source, and a transmission system between the wheels and the power source. The transmission system can transmit the power provided by the power source to the wheels, causing the wheels to rotate and thus driving the vehicle.

[0045] In this application embodiment, the type of power source of the vehicle is not limited. For example, for a fuel vehicle, the power source may refer to a fuel engine such as a gasoline engine or a diesel engine; for an electric vehicle, the power source may refer to an electric motor; for a hybrid vehicle, the power source may refer to an engine or an electric motor; for a vehicle powered by other means, the power source may refer to a device that generates power.

[0046] Vehicles typically include a tailgate located at the rear, used to open and close the trunk or cargo compartment for easy loading and unloading of items. The tailgate's installation position generally corresponds to the rear body frame of the vehicle. Specifically, the tailgate is mounted on the upper part of the body structure at the rear of the car, primarily composed of structural components such as the upper section of the side rear pillars, the rear roof crossbeam, and the rear upper beam. The upper section of the side rear pillars forms the vertical support structure at the rear of the vehicle's sides, while the rear roof crossbeam connects the side rear pillars on both sides of the vehicle body and the transverse structural component located at the rear of the roof. The rear upper beam runs along the upper edge of the rear of the vehicle body. These structural components connect to form a stable frame, providing the foundation for the tailgate's installation.

[0047] The tailgate typically uses a hinge connection to achieve a movable connection between the tailgate and the vehicle body. Generally, the hinge consists of two mating flaps. One flap is fixedly connected to structural components such as the upper section of the rear pillar on the side of the vehicle body or the rear crossbeam of the roof, while the other flap is fixedly connected to a corresponding position on the tailgate. The two flaps are rotatably connected by a pin or other connecting component.

[0048] During use, the tailgate is subjected to repeated bending moments and shear forces due to the combined effects of its own weight, the impact force during opening and closing, and the vibration load during vehicle operation. Over a long period of use, the mounting parts with limited rigidity are prone to deformation or even fatigue damage, resulting in low tailgate durability.

[0049] In related technologies, a hinge reinforcement plate is added to the rear roof crossbeam to improve the rigidity of the hinge mounting area. This reinforcement plate is positioned between and fitted to the outer and inner panels of the rear roof crossbeam, with the aim of enhancing the overall rigidity of the mounting area through its structure. However, because the hinge reinforcement plate is a plate-like structure, its inherent structural characteristics limit the rigidity improvement it can provide, resulting in insufficient rigidity at the hinge mounting area.

[0050] Based on this, the present application provides a tailgate mounting structure and vehicle, aiming to solve the above-mentioned technical problems of the prior art.

[0051] Specifically, the tailgate mounting structure, through the mounting portion on the first reinforcing plate, enables the tailgate to be installed on the mounting structure. The first reinforcing plate, together with the inner panel of the pillar, defines the first cavity, improving the structural strength and rigidity of the tailgate mounting structure around the mounting portion. The second reinforcing plate further enhances the connection strength between the first reinforcing plate and the outer panel of the pillar, making the connection between the entire reinforcing assembly and the pillar and crossbeam more stable. This further reduces the likelihood of deformation of the first reinforcing plate under stress, thereby further improving the structural strength and rigidity of the tailgate mounting structure around the mounting portion.

[0052] Therefore, the tailgate mounting structure of this embodiment improves the rigidity and structural strength of the tailgate hinge mounting part, thereby improving the installation stability of the tailgate and thus helping to improve the durability of the tailgate.

[0053] The rear door installation structure mentioned in the embodiments of this application will be further described below with reference to the accompanying drawings and examples.

[0054] Please refer to Figure 1 and Figure 2 The rear door installation structure provided in this application embodiment includes a column 100, a crossbeam 200, and a reinforcing component 300.

[0055] The column 100 includes an inner plate 110 and an outer plate 120, with the outer plate 120 mounted on the inner plate 110.

[0056] The pillar 100 is typically located on the side of the vehicle body, providing support and connection points for the installation, opening, and closing of the tailgate. The inner pillar panel 110, as the main load-bearing component, provides a stable support foundation for the entire pillar 100 and can withstand the vertical load transmitted by the tailgate. The outer pillar panel 120 plays a certain protective and connecting role on the outside and can be connected with the inner pillar panel 110 to form the basic frame of the pillar 100.

[0057] In this embodiment, the column 100 can be a support column such as the C-pillar or D-pillar at the rear of the car.

[0058] The crossbeam 200 includes an inner plate 210 and an outer plate 220. The inner plate 210 is connected to the inner plate 110 of the column. The outer plate 220 is located on the inner plate 210, and the outer plate 220 and the outer plate 120 of the column are located on the same side of the inner plate 110. On the side of the outer plate 120 away from the inner plate 110, the outer plate 220 and the outer plate 120 of the column have an overlapping area 30.

[0059] The inner panel 210 and outer panel 220 of the crossbeam are connected to form the main structure of the crossbeam 200, which can jointly bear the weight of the rear door and other external loads. The outer panel 220 of the crossbeam and the outer panel 120 of the column are located on the same side of the inner panel 110 of the column, so that an overlapping area 30 can be formed between the outer panel 220 of the crossbeam and the outer panel 120 of the column. The overlapping area 30 can be a part of the outer panel 120 of the column covering the outer panel 220 of the crossbeam, or a part of the outer panel 220 of the crossbeam covering the outer panel 120 of the column.

[0060] The overlapping area 30 provides an installation base for the reinforcing component 300. At the same time, the outer plate 220 of the crossbeam and the outer plate 120 of the column are connected to each other here, which helps to disperse local stress to a larger area so as to withstand the impact load transmitted by the rear door through the hinge and suppress stress concentration.

[0061] Please see Figures 3 to 5 , Figure 3 A schematic diagram of the rear door installation structure to conceal the outer panel 220 of the crossbeam and to partially cut through the second reinforcing plate 320. Figure 4 and Figure 5 This is a cross-sectional schematic diagram of the hinge mounting area of ​​the rear door. The reinforcing assembly 300 includes a first reinforcing plate 310 and a second reinforcing plate 320. The first reinforcing plate 310 is located on the side of the inner plate 110 of the pillar facing the outer plate 120 of the pillar, and together with the inner plate 110 of the pillar, defines a first cavity 10, which is opposite to the overlapping area 30. The first reinforcing plate 310 has a mounting portion 311 for mounting the rear door. The second reinforcing plate 320 is located between the first reinforcing plate 310 and the outer plate 120 of the pillar, and connects the first reinforcing plate 310 and the outer plate 120 of the pillar. The second reinforcing plate 320, the outer plate 120 of the pillar, and the outer plate 220 of the crossbeam are all provided with a clearance structure 40, which is used to expose the mounting portion 311 to the outside of the crossbeam 200. In other words, when the rear door mounting structure does not obstruct other structures, the mounting part 311 can be seen through the clearance structure 40, so that the rear door can be connected to the mounting part 311 and the rear door can be installed on the rear door mounting structure.

[0062] Please see Figure 4 The first cavity 10, defined by the first reinforcing plate 310 and the inner plate 110 of the column, is a cavity structure. Compared to a plate structure, the cavity structure has a larger moment of inertia. Specifically, the cavity structure allows impact loads to be transmitted and dispersed along its walls, thereby reducing deformation caused by local stress concentration. At the same time, the enclosed cavity can form a truss-like mutually supporting structure, enabling the cavity walls to work together to resist external forces, thus improving the structural strength of the first reinforcing plate 310. Therefore, the first cavity 10, defined by the first reinforcing plate 310 and the inner plate 110 of the column, can effectively improve the overall stiffness of the hinge mounting area.

[0063] The second reinforcing plate 320 is located between and connects the first reinforcing plate 310 and the outer plate 120 of the column, playing a role in force transmission and dispersion. When the first reinforcing plate 310 is subjected to load, part of the load is transferred to the outer plate 120 of the column through the second reinforcing plate 320, so that the load is dispersed over a larger area and stress concentration is reduced. At the same time, the second reinforcing plate 320 also enhances the connection strength between the first reinforcing plate 310 and the outer plate 120 of the column, making the connection between the entire reinforcing assembly 300 and the column 100 and the beam 200 more stable.

[0064] The clearance structure 40 on the second reinforcing plate 320, the column outer plate 120, and the crossbeam outer plate 220 allows the mounting part 311 to be exposed outside the crossbeam 200, thereby providing a mounting base for the hinge to enable the installation of the rear door.

[0065] In summary, the first reinforcing plate 310 and the second reinforcing plate 320 of this embodiment adopt a split structure. The first reinforcing plate 310 and the inner plate 110 of the column form a first cavity 10. The moment of inertia brought by the cavity structure effectively improves the overall rigidity of the rear door mounting part. At the same time, the setting of the second reinforcing plate 320 further disperses the load and reduces stress concentration, thereby solving the problem of poor durability of the rear door caused by insufficient rigidity in related technologies.

[0066] Please see Figure 4 and Figure 5 In some embodiments of this application, the outer plate of the beam 220 and the outer plate of the column 120 are connected to each other in the overlapping area 30.

[0067] The interconnection between the outer panel 220 of the horizontal beam and the outer panel 120 of the vertical column allows the horizontal beam 200 and the vertical column 100 to form an integrated structure in the overlapping area 30, thereby improving the structural strength of the overlapping area 30. When the rear door is opened, the vertical load generated acts on the horizontal beam 200. Through the connection of the overlapping area 30, part of the load can be transferred to the vertical column 100, where it is jointly borne by the vertical column 100 and the horizontal beam 200, thus enhancing the overall load-bearing capacity of the frame structure.

[0068] For example, the outer plate 220 of the beam and the outer plate 120 of the column are connected by welding or other methods. Compared with other connection methods, welding the outer plate 220 of the beam and the outer plate 120 of the column helps to improve the connection strength between them.

[0069] Please continue reading. Figure 4 and Figure 5 In some embodiments of this application, the avoidance structures 40 on the second reinforcing plate 320, the column outer plate 120, and the crossbeam outer plate 220 are all arranged opposite to the mounting part 311.

[0070] The clearance structure 40 is positioned opposite the mounting part 311 to ensure that the mounting part 311 is not obstructed by the second reinforcing plate 320, the outer panel 120 of the upright, and the outer panel 220 of the crossbeam when connected to the tailgate, allowing the mounting part 311 to be exposed to the outside of the crossbeam 200 through the clearance structure 40. During tailgate installation, fasteners such as bolts can directly pass through the clearance structure 40 and connect to the mounting part 311 without requiring additional adjustments or processing to these components.

[0071] Meanwhile, since the avoidance structure 40 is opposite to the mounting part 311, it can provide sufficient space for the mounting part 311 and the related connecting parts 312 of the rear door, avoiding interference such as collision and friction between the rear door and the second reinforcing plate 320, the column outer plate 120 or the crossbeam outer plate 220 when the rear door moves due to the positional deviation of the avoidance structure 40.

[0072] Therefore, in this embodiment, the mounting part 311 is arranged opposite to the avoidance structure 40, which ensures that the rear door hinge can be smoothly and accurately installed on the mounting part 311, thus guaranteeing the reliability of the installation.

[0073] In some embodiments, please refer to Figure 3 The clearance structure 40 can be a clearance hole, bolt hole, or other through hole. The clearance hole can be a boss extending from the inside to the outside of the crossbeam 200 on the second reinforcing plate 320, the outer plate 120 of the column, and the outer plate 220 of the crossbeam. When the mounting part 311 protrudes outside the crossbeam 200, the boss can provide additional space for the mounting part 311, avoiding interference with surrounding components. At the same time, the through hole in the boss can ensure that the mounting structure and the rear door connection part 312 are smoothly installed and fixed.

[0074] In some embodiments of this application, please refer to Figure 4 The projection of the mounting part 311 on the avoidance structure 40 is at least inside the avoidance structure 40, so as to ensure that the mounting part 311 can be fully exposed outside the crossbeam 200.

[0075] In the direction from the inner plate 210 of the crossbeam to the outer plate 220 of the crossbeam, that is, in the direction indicated by the dashed arrow in the figure, the projection of the mounting part 311 on the clearance part is located within the clearance structure 40. In other words, the projection of the mounting part 311 will not exceed the boundary of the clearance structure 40. It can be completely inside the clearance structure 40, or it can just coincide with the boundary of the clearance structure 40, so that each part of the mounting part 311 can correspond to the range of the clearance structure 40 and will not be blocked by the second reinforcing plate 320, the column outer plate 120 and the crossbeam outer plate 220.

[0076] In this way, the structure of the mounting part 311 itself, as well as the connecting parts used for subsequent connection with the tailgate, can be smoothly operated or moved through the clearance structure 40. For example, when the mounting part 311 is a bolt hole, its projection is located within the clearance structure 40, which ensures that the bolt hole is not blocked, so that the bolt can pass smoothly through the clearance structure 40 and connect with the bolt hole.

[0077] In some embodiments of this application, please refer to Figure 7 The first reinforcing plate 310 includes a mounting part 311 and a plurality of connecting parts 312. The plurality of connecting parts 312 surround the periphery of the mounting part 311 and are connected to the inner plate 110 of the column.

[0078] There is a gap between the mounting part 311 and the inner plate 110 of the column, and the mounting part 311, the connecting part 312 and the inner plate 110 of the column together form the first cavity 10.

[0079] The main function of the mounting part 311 is to provide the mounting position for the tailgate hinge, and to achieve a stable connection with the tailgate through the mounting structure thereon, bearing various loads transmitted from the tailgate. The connecting part 312 serves two purposes: firstly, it connects the mounting part 311 and the inner plate 110 of the pillar, fixing the mounting part 311 to the inner plate 110 of the pillar and ensuring the overall stability of the first reinforcing plate 310; secondly, multiple connecting parts 312 surround the mounting part 311, and together with the mounting part 311 and the inner plate 110 of the pillar, they form the sidewall of the first cavity 10, providing support for the cavity structure.

[0080] For example, the connecting part 312 can be a bent structure on the first reinforcing plate 310. One end of the bent structure is connected to the mounting part 311, and the other end can be bent toward one side of the inner plate 110 of the column to ensure that the connecting part 312 can fix the mounting part 311 to the inner plate 110 of the column.

[0081] The first cavity 10, formed by the mounting part 311, the connecting part 312, and the inner plate 110 of the pillar, utilizes the high rigidity of the enclosed cavity structure. When the load of the tailgate is transmitted to the mounting part 311, the mounting part 311 distributes the force to each connecting part 312, and the connecting part 312 then transmits the force to the inner plate 110 of the pillar. The cavity structure allows the force to be distributed more evenly during transmission, reducing stress concentration. At the same time, the enclosed cavity can effectively resist bending and torsional deformation, and compared with a simple plate structure, it can withstand greater external forces without easily deforming.

[0082] Therefore, in this embodiment, the mounting part 311 is surrounded by multiple connecting parts 312 and connected to the inner plate 110 of the column to form a first cavity 10, thereby improving the rigidity of the hinge mounting part.

[0083] In some embodiments of this application, please refer to Figure 4 and Figure 5 The second reinforcing plate 320, together with the first reinforcing plate 310 and the inner plate 110 of the column, defines a second cavity 20, which is located on one side of the first cavity 10.

[0084] The second cavity 20 is formed by a portion of the second reinforcing plate 320, a portion of the first reinforcing plate 310, and a portion of the inner plate 110 of the column. Its spatial form is similar to that of the first cavity 10, both being relatively closed cavity structures. Furthermore, the second cavity 20 is located to one side of the first cavity 10, and is both independent of and adjacent to the first cavity 10.

[0085] The second cavity 20 works in conjunction with the first cavity 10 to distribute and bear loads over a wider range. When the load of the tailgate is transmitted to the mounting part 311 and distributed to the first cavity 10, the second cavity 20, located on one side of the first cavity 10, can share part of the force transmitted from the first cavity 10, or directly bear the load transmitted from the surrounding structure, thus playing an auxiliary load-bearing role.

[0086] Meanwhile, the dual-cavity structure formed by the second cavity 20 and the first cavity 10, compared to a single-cavity structure, allows for more paths for force transmission, further reducing stress concentration. Furthermore, the multi-cavity structure better resists bending and torsional deformation in different directions, enhancing the overall deformation resistance of the installation area.

[0087] Therefore, this embodiment further improves the overall rigidity and structural stability of the hinge mounting part through the second cavity 20, which can cope with more complex and larger loads and further reduce the deformation of the mounting part.

[0088] In some embodiments of this application, please refer to Figure 4 and Figure 6 The second reinforcing plate 320 has a fitting part 323, a first bending part 321 and a second bending part 322. The fitting part 323 is located between the mounting part 311 and the column outer plate 120 and connects the mounting part 311 and the column outer plate 120.

[0089] The fitting part 323 directly connects the mounting part 311 and the outer plate 120 of the column, which can transfer part of the load borne by the mounting part 311 to the outer plate 120 of the column. At the same time, it enhances the connection strength between the second reinforcing plate 320, the mounting part 311, and the outer plate 120 of the column, so that the three form an integral load-bearing unit and reduce relative displacement. It can be understood that the fitting part 323 is located between the mounting part 311 and the outer plate 120 of the column, and its shape is adapted to the corresponding contact surfaces of the mounting part 311 and the outer plate 120 of the column. The mounting part 311 and the outer plate 120 of the column can be connected by welding or other means.

[0090] The first bend 321 and the second bend 322 are located on different sides of the mounting portion 311 in the circumferential direction and are connected. The first bend 321 is connected to at least part of the connecting portion 312 on the side away from the inner plate 110 of the column, and the second bend 322 is connected to the inner plate 110 of the column.

[0091] The first bending part 321, the second bending part 322, the first reinforcing plate 310 and the inner plate 110 of the column together form the second cavity 20.

[0092] The first bend 321 and the second bend 322 can be flanged structures, thereby improving the structural rigidity of the second reinforcing plate 320 itself. The first bend 321 is connected to the side of the connecting part 312 away from the inner plate 110 of the column. On the one hand, it can support the connecting part 312 and enhance its resistance to deformation; on the other hand, it can transfer the load borne by the connecting part 312 to the second bend 322. The second bend 322 is connected to the inner plate 110 of the column, which can further transfer the force transmitted from the first bend 321 to the inner plate 110 of the column, realizing multi-level transmission and distribution of load.

[0093] The first bend 321 and the second bend 322 may be located on adjacent sides or opposite sides of the mounting portion 311. The first bend 321 is connected to at least one part of the connecting portion 312 on the side away from the inner plate 110 of the column, that is, the first bend 321 is attached to the outer surface of the connecting portion 312 and fixed; the second bend 322 is connected to the inner plate 110 of the column, and can also be fixed by welding or other methods.

[0094] Therefore, this embodiment improves its rigidity and structural strength through the bonding portion 323, the first bending portion 321 and the second bending portion 322 on the second reinforcing plate 320, and forms a second cavity 20 by enclosing it, which together with the first cavity 10 forms a multi-cavity structure that shares the load.

[0095] In some embodiments of this application, please refer to Figure 4 and Figure 6 The second bend 322 is also sandwiched between the inner plate 110 of the column and the outer plate 220 of the beam to connect the inner plate 110 of the column and the outer plate 220 of the beam.

[0096] In this embodiment, the second bending portion 322 connects the inner plate 110 of the column and the outer plate 220 of the beam, forming a more robust overall frame that jointly resists external loads, further improving the overall rigidity of the hinge mounting area. Furthermore, after the second bending portion 322 connects the two, it can transfer the force on the inner plate 110 of the column to the outer plate 220 of the beam, and vice versa, achieving mutual transfer and distribution of force between the column 100 and the beam 200, which helps reduce fatigue at the connection point 312.

[0097] In some embodiments of this application, please refer to Figure 7 The connecting part 312 of the adjacent beam inner plate 210 is also sandwiched between the beam inner plate 210 and the column inner plate 110, and is connected to the beam inner plate 210 and the column inner plate 110.

[0098] The connecting part 312 adjacent to the inner plate of the beam 210 is provided between the inner plate of the beam 210 and the inner plate of the column 110. This connecting part 312 can transmit the force on the inner plate of the beam 210 to the inner plate of the column 110, and can also transmit the force on the inner plate of the column 110 to the inner plate of the beam 210, realizing the bidirectional transmission and sharing of force between the beam 200 and the column 100, thereby further improving the connection strength between the inner plate of the beam 210 and the inner plate of the column 110.

[0099] For example, the connecting portion 312 includes a flange portion 313 located at its edge, which is sandwiched between the inner plate of the beam 210 and the inner plate of the column 110.

[0100] In some embodiments, please refer to Figure 4 and Figure 6 At least part of the first bend 321 is also sandwiched between the connecting part 312 and the inner plate of the crossbeam 210, so as to realize the bidirectional transmission and distribution of force between the connecting part 312 and the inner plate of the crossbeam 210, thereby enhancing the connection strength of this part.

[0101] Based on this, this application also provides a vehicle, including a tailgate and a tailgate mounting structure as described in any of the above embodiments. The tailgate is movably mounted on the mounting portion 311 of the tailgate mounting structure.

[0102] The tailgate mounting structure in a vehicle serves to support and secure the tailgate, providing a stable mounting base. The frame structure composed of the upright 100 and the crossbeam 200 acts as the main support, bearing the weight of the tailgate and various external loads. The reinforcing component 300, through the cavity structure formed by the first reinforcing plate 310 and the second reinforcing plate 320, effectively improves the rigidity of the corresponding mounting part of the tailgate and ensures that the tailgate mounting structure is not easily deformed during tailgate movement.

[0103] The tailgate is movably mounted on the mounting structure, and its rotation characteristics, such as those of the hinges, allow users to utilize the trunk or cargo compartment. For example, the hinge support is first mounted on the mounting portion 311 of the tailgate mounting structure, and then the tailgate and hinge are rotatably connected via a pivot or pin, thus achieving the movable connection of the tailgate.

[0104] When the tailgate is movably installed on the mounting part 311, the tailgate can be flipped to the top side of the vehicle body to open the tailgate, or it can be flipped to the bottom side of the vehicle body to close the tailgate.

[0105] It is understood that the vehicle in this embodiment has the beneficial effects of the tailgate mounting structure in any of the above embodiments, so it will not be described in detail here.

[0106] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A tailgate mounting structure, characterized in that, include: A column (100) includes an inner plate (110) and an outer plate (120), wherein the outer plate (120) is disposed on the inner plate (110); A crossbeam (200) includes an inner plate (210) and an outer plate (220). The inner plate (210) is connected to the inner plate (110) of the column. The outer plate (220) is disposed on the inner plate (210), and the outer plate (220) and the outer plate (120) of the column are located on the same side of the inner plate (110). The outer plate (120) of the column is on the side away from the inner plate (110). The outer plate (220) of the crossbeam and the outer plate (120) of the column have an overlapping area (30). A reinforcing assembly (300) includes a first reinforcing plate (310) and a second reinforcing plate (320). The first reinforcing plate (310) is located on the side of the inner plate (110) of the column facing the outer plate (120) of the column, and together with the inner plate (110), defines a first cavity (10). The first cavity (10) is opposite to the overlapping area (30). The first reinforcing plate (310) has a mounting portion for mounting a rear door. (311); The second reinforcing plate (320) is located between the first reinforcing plate (310) and the column outer plate (120), and connects the first reinforcing plate (310) and the column outer plate (120); and the second reinforcing plate (320), the column outer plate (120) and the beam outer plate (220) are all provided with a clearance structure (40), which is used to expose the mounting part (311) to the outside of the beam (200).

2. The rear door mounting structure according to claim 1, characterized in that, The outer plate of the crossbeam (220) and the outer plate of the column (120) are connected to each other in the overlapping area (30).

3. The rear door mounting structure according to claim 1, characterized in that, The avoidance structures (40) on the second reinforcing plate (320), the column outer plate (120), and the crossbeam outer plate (220) are all arranged opposite to the mounting part (311).

4. The tailgate mounting structure according to claim 3, characterized in that, The projection of the mounting part (311) on the avoidance structure (40) is located within the avoidance structure (40).

5. The tailgate mounting structure according to any one of claims 1-4, characterized in that, The first reinforcing plate (310) includes the mounting part (311) and a plurality of connecting parts (312), the plurality of connecting parts (312) surrounding the periphery of the mounting part (311) and connected to the inner plate (110) of the column; There is a gap between the mounting part (311) and the inner plate of the column (110), and the mounting part (311), the connecting part (312) and the inner plate of the column (110) together form a first cavity (10).

6. The tailgate mounting structure according to claim 5, characterized in that, The second reinforcing plate (320) also defines a second cavity (20) together with the first reinforcing plate (310) and the inner plate of the column (110), the second cavity (20) being located on one side of the first cavity (10).

7. The tailgate mounting structure according to claim 6, characterized in that, The second reinforcing plate (320) has a fitting part (323), a first bending part (321) and a second bending part (322). The fitting part (323) is located between the mounting part (311) and the column outer plate (120) and connects the mounting part (311) and the column outer plate (120). The first bend (321) and the second bend (322) are located on different sides of the mounting portion (311) in the circumferential direction and are connected. The first bend (321) is connected to at least a portion of the connecting portion (312) on the side away from the inner plate of the column (110), and the second bend (322) is connected to the inner plate of the column (110). The first bending portion (321), the second bending portion (322), the first reinforcing plate (310), and the inner plate of the column (110) together form the second cavity (20).

8. The tailgate mounting structure according to claim 7, characterized in that, Part of the second bend (322) is also sandwiched between the inner plate of the column (110) and the outer plate of the beam (220) to connect the inner plate of the column (110) and the outer plate of the beam (220).

9. The tailgate mounting structure according to claim 5, characterized in that, The connecting portion (312) adjacent to the inner plate of the beam (210) is also sandwiched between the inner plate of the beam (210) and the inner plate of the column (110), and is connected to the inner plate of the beam (210) and the inner plate of the column (110).

10. A vehicle, characterized in that, include: Rear door; The tailgate mounting structure according to any one of claims 1 to 9, wherein the tailgate is movably mounted on the mounting portion (311) of the tailgate mounting structure.

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