Ground door and vehicle

Abstract

The invention discloses a ground door and a vehicle, and relates to the technical field of vehicles, the ground door comprises an inner plate and an outer plate, the inner plate comprises a plate body and an air door lock catch mounting part which are integrally formed, a mounting cavity is formed between the plate body and the outer plate, the air door lock catch mounting part is arranged in the mounting cavity in a protruding mode, and the air door lock catch mounting part is arranged in the mounting cavity. A containing space used for installing a sky door lock catch is constructed, and the sky door lock catch is used for achieving detachable locking fit between the ground door and the sky door. According to the technical scheme, the structure of the ground door is simplified, and the production and assembly efficiency of the ground door is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a ground door and a vehicle. Background Technology

[0002] In recent years, the design of car tailgates has become increasingly diverse, with the split-door style often being promoted as a highlight on passenger vehicles. In related technologies, the split-door typically adds an additional mounting bracket for installing the top door latch on top of the inner and outer panels, resulting in a complex overall structure, an increased number of parts, and reduced production and assembly efficiency. Summary of the Invention

[0003] The main objective of this invention is to propose a ground door and vehicle that simplifies the ground door structure and improves the production and assembly efficiency of the ground door.

[0004] To achieve the above objectives, the present invention proposes a ground door comprising an inner panel and an outer panel. The inner panel comprises an integrally formed panel body and a top door latch mounting part. An mounting cavity is formed between the panel body and the outer panel. The top door latch mounting part protrudes from the mounting cavity and constructs an accommodating space for mounting the top door latch. The top door latch is used to achieve a detachable locking engagement between the ground door and the top door.

[0005] In one embodiment, the gate latch mounting portion includes a first support portion and two second support portions that surround and form the accommodating space. Each side of the first support portion is connected to a second support portion, and the gate latch is mounted on the first support portion.

[0006] In one embodiment, the gate latch mounting part further includes two third support parts, which are disposed on opposite sides of the two second support parts, and the third support parts and the corresponding second support parts surround to form a cavity.

[0007] In one embodiment, the plate body has a first communication port communicating with the cavity, and the second support portion and the third support portion are also configured to form a second communication port communicating with the cavity, with the first communication port and the second communication port being disposed opposite to each other.

[0008] In one embodiment, the edge of the first support portion is bent to provide a first abutment portion, and the third support portion includes a second abutment portion. The two ends of the first abutment portion are respectively connected to two second abutment portions, and both the first abutment portion and the second abutment portion abut against the outer plate.

[0009] In one embodiment, the first abutment portion and / or the second abutment portion are connected to the outer plate by fasteners.

[0010] In one embodiment, the first support portion is provided with a first mounting hole for the gantry lock to be connected by a fastener, and a first reinforcing protrusion is provided on the side of the first support portion opposite to the accommodating space, and the first mounting hole passes through the first reinforcing protrusion.

[0011] In one embodiment, the plate body has a first protrusion on the side facing the mounting cavity, the first protrusion has a recessed space on the side facing away from the mounting cavity, and the first reinforcing protrusion is connected to the first protrusion.

[0012] In one embodiment, the inner plate is integrally formed by die casting.

[0013] In one embodiment, the inner plate is configured to be made of magnesium alloy.

[0014] In one embodiment, the outer panel is configured to be made of aluminum alloy.

[0015] In one embodiment, the plate body is provided with a weight-reduction opening.

[0016] The present invention also proposes a vehicle that includes the aforementioned ground door.

[0017] In this invention, the plate body and the gantry lock mounting part are integrally formed, allowing the mounting point of the gantry lock to be directly integrated into the integrally formed structure of the inner plate. This eliminates the need for additional independent supports, welded parts, or additional mounting plates, reducing the number of parts, simplifying the assembly process, and improving production efficiency and assembly accuracy. Simultaneously, the mounting cavity formed by the plate body and the outer plate provides a reliable mounting space for the gantry lock. Furthermore, placing the gantry lock within this space further ensures its installation stability, guaranteeing reliable locking and smooth disengagement between the gantry and the outer door during opening and closing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the ground door provided by the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 A cross-sectional view of an embodiment of the ground door provided by the present invention; Figure 4 A schematic diagram of the structure of an embodiment of the ground door provided by the present invention, showing the inner panel facing the outer panel; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 for Figure 5 A schematic diagram of the local structure from another perspective; Figure 7 for Figure 4 A structural schematic diagram of the inner panel from another perspective; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9 for Figure 7 A magnified view of a section at point D; Figure 10 for Figure 7 A magnified view of a section at point E in the middle; Figure 11 for Figure 4 A structural diagram of the inner panel after the relevant functional components are installed; Figure 12 for Figure 11 A magnified view of a section at point F in the middle; Figure 13 for Figure 11 A magnified view of a section at point G in the middle; Figure 14 for Figure 11 A magnified view of a section at point H in the middle; Figure 15 A schematic diagram of the structure of an embodiment of the inner panel of the ground door facing away from the outer panel provided by the present invention; Figure 16 for Figure 15 A magnified view of a section at point J; Figure 17 for Figure 15 A structural schematic diagram of the inner panel from another perspective; Figure 18 for Figure 17 A magnified view of a section at point K; Figure 19 for Figure 17 A magnified view of a section at point L; Figure 20 for Figure 15 A schematic diagram of the inner panel after the relevant functional components are installed; Figure 21 for Figure 20 A magnified view of a section at point M; Figure 22 for Figure 20 A magnified view of a portion of point N in the middle; Figure 23 for Figure 20 A magnified view of a section at point P in the middle; Figure 24 for Figure 20 A magnified view of a portion of point Q.

[0021] Explanation of icon numbers: 101. Mounting cavity; 11. Inner panel; 12. Outer panel; 12a. Edge banding; 12b. Sixth mounting hole; 100. Plate body; 110. Main body; 120. First folded edge; 130. Second folded edge; 131. Avoidance recess; 200. Reinforcing structure; 211. First reinforcing rib; 212. Second reinforcing rib; 221. First reinforcing protrusion; 222. Second reinforcing protrusion; 223. Third reinforcing protrusion; 230. First convex hull; 241. First alignment protrusion; 242. Second alignment protrusion; 243. Third alignment protrusion; 250. Second convex hull; 251. Clearance opening; 252. Reinforcing wall; 253. Supporting wall; 260. Third convex hull; 270. Weight reduction through the opening; 300. Tianmen lock mounting part; 301. Accommodation space; 302. Second mounting hole; 310. First support portion; 311. First mounting hole; 312. First abutment portion; 313. Groove; 320. Second support portion; 330. Third support part; 331. Cavity; 332. Second abutment part; 333. First connecting port; 334. Second connecting port; 400. Door latch mounting part; 401. First side; 402. Second side; 403. Third mounting hole; 500, hinge mounting position; 501, fourth mounting hole; 600, First driver mounting position; 601, Fifth mounting hole; 602, First clearance through hole; 700, Cable mechanism mounting position; 701, Seventh mounting hole; 702, Second clearance hole; 703, Eighth mounting hole; 20. Top door latch; 30. Bottom door latch; 40. Hinges; 50. Driver; 51. Connecting rod; 52. Transmission link; 60. Cable mechanism; 61. Cable body; 62. Cable mounting body; 63. Base; 64. Mounting support.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes a ground door.

[0027] Please see Figures 1 to 3 In one embodiment of the present invention, the ground door includes an inner panel 11 and an outer panel 12. The inner panel 11 includes an integrally formed panel body 100 and a top door latch mounting part 300. An mounting cavity 101 is formed between the panel body 100 and the outer panel 12. The top door latch mounting part 300 protrudes from the mounting cavity 101 and forms an accommodating space 301 for mounting a top door latch 20. The top door latch 20 is used to realize a detachable locking engagement between the ground door and the top door.

[0028] In this invention, the plate body 100 and the top door latch mounting part 300 are integrally formed, allowing the mounting point of the top door latch 20 to be directly integrated into the integrally formed structure of the inner plate 11. This eliminates the need for additional independent brackets, welded parts, or additional mounting plates, reducing the number of parts, simplifying the assembly process, and improving production efficiency and assembly accuracy. Simultaneously, the mounting cavity 101 formed by the plate body 100 and the outer plate 12 provides a reliable mounting space for the top door latch 20. Furthermore, placing the top door latch 20 within the accommodating space 301 formed by the top door latch mounting part 300 further ensures the installation stability of the top door latch 20, guaranteeing reliable locking and smooth disengagement between the top and bottom doors during opening and closing.

[0029] In one embodiment, the outer periphery of the plate body 100 and the outer periphery of the outer plate 12 are connected. Thus, the overall structural stability of the ground door is further enhanced by the reliable connection between the plate body 100 and the outer plate 12 at the outer periphery.

[0030] In one embodiment, please refer to Figure 3 The outer panel 12 has a edging portion 12a formed on its outer periphery, which covers the outer periphery of the panel body 100. This enhances the structural continuity between the inner panel 11 and the outer panel 12 in the connection area and effectively improves the rigidity and deformation resistance of the door edge. Simultaneously, the edging structure provides some shielding, improves the overall appearance, and helps improve sealing performance, reducing the risk of rainwater or dust intrusion.

[0031] Furthermore, in this embodiment, the outer periphery of the outer panel 12 and the outer periphery of the panel body 100 are connected by fasteners. This ensures a strong and reliable mechanical connection after assembly. This connection method balances assembly convenience and connection strength, guaranteeing the structural integrity of the mounting cavity 101 while facilitating later maintenance or disassembly. It also avoids loosening or gaps that may occur due to relying solely on edge banding, further enhancing the overall structural stability and durability of the door. The fasteners include screws, bolts, rivets, pins, etc. In other embodiments, the two can also be connected by welding.

[0032] In one embodiment, please refer to Figure 3 and Figure 4The plate body 100 includes a main body portion 110, a first folded edge portion 120, and a second folded edge portion 130 connected by sequential bending. The first folded edge portion 120 bends towards the outer plate 12 relative to the main body portion 110, and the second folded edge portion 130 extends away from the main body portion 110 relative to the first folded edge portion 120. Thus, by forming a spatially layered plate body 100 configuration through multiple bending segments, not only is a reasonable arrangement space provided for the integrally formed structure on the plate body 100, but the bending stiffness and local load-bearing capacity of the inner plate 11 are also significantly improved. Specifically, the first folded edge portion 120 extends towards the outer plate 12, which facilitates its cooperation with the outer plate 12 to form the mounting cavity 101. The second folded edge portion 130 extends further outward, serving as an overlapping area or fastening connection area that cooperates with the edging portion 12a of the outer plate 12, enhancing connection reliability. Furthermore, this multi-folded structure optimizes the mechanical transmission path within the inner panel 11, which is beneficial for effective load distribution and vibration suppression, thereby improving the structural response performance and durability of the door during use. In other embodiments, the panel body 100 may also be a structure with a flat middle and folded edges on the sides.

[0033] Specifically, please refer to Figure 4 and Figure 7 The top door latch mounting part 300 protrudes from the main body part 110 on the side facing the outer plate 12. The top door latch mounting part 300 is centrally located in the length direction of the bottom door and is located on the side of the main body part 110 away from the second folded edge part 130.

[0034] It can be understood that the length direction of the gate corresponds to the Y direction of the vehicle. Specifically, the vehicle's driving direction is set as the X direction, which is the forward and backward direction; the vehicle's height direction is set as the Z direction, which is the up and down direction; and the vehicle's width direction is set as the Y direction, which is the left and right direction.

[0035] On the one hand, the centrally located mounting part 300 of the gate lock ensures that the gate lock 20 installed there and the corresponding mating parts on the gate are subjected to symmetrical forces when closed, thus improving the locking reliability. On the other hand, this area is usually within the natural reach of the user's hand, which facilitates manual unlocking or emergency operation, thereby improving the user experience.

[0036] Further, please refer to Figure 5 , Figure 8 and Figure 12In this embodiment, the gantry lock mounting portion 300 includes a first support portion 310 and two second support portions 320 that enclose the accommodating space 301. Each side of the first support portion 310 is connected to one of the second support portions 320, and the gantry lock 20 is mounted on the first support portion 310. Thus, the first support portion 310 provides a stable mounting reference for the gantry lock 20, and the two second support portions 320 provide reliable lateral restraint for the gantry lock 20, effectively preventing it from shifting, loosening, or even falling off under vehicle vibration, bumps, or collision conditions, ensuring the long-term reliability of the gantry lock 20 mechanism. In other embodiments, the gantry lock mounting portion 300 can also be configured with other structures, such as simply providing a mounting platform for the gantry lock 20.

[0037] Further, in this embodiment, please refer to Figure 5 , Figure 8 , Figure 12 and Figure 18 The gate latch mounting part 300 further includes two third support parts 330, which are respectively disposed on opposite sides of the two second support parts 320. The third support parts 330 and the corresponding second support parts 320 surround to form a cavity 331. In this way, the overall rigidity and torsional resistance of the gate latch mounting part 300 can be enhanced while avoiding increasing the weight of the inner plate 11, which is conducive to achieving a lightweight design of the inner plate 11. In other embodiments, the structural strength can also be enhanced by setting ribs.

[0038] Further, in this embodiment, please refer to Figure 8 and Figure 18 The plate body 100 has a first connecting port 333 communicating with the cavity 331, and the second support portion 320 and the third support portion 330 are also configured to form a second connecting port 334 communicating with the cavity 331. The first connecting port 333 and the second connecting port 334 are disposed opposite to each other. In other embodiments, the cavity 331 may also be configured as a closed structure or a structure closed at one end.

[0039] This embodiment, by setting up a first connecting port 333 and a second connecting port 334 arranged opposite to each other, not only achieves communication between the cavity 331 and the external environment while ensuring the overall structural strength of the top door latch mounting part 300, but also facilitates subsequent processing of the inner surface of the inner plate 11. For example, in the electrophoretic coating process, this connecting structure can ensure that the bath liquid flows fully into the cavity 331, achieving uniform coverage of the electrophoretic paint, thereby effectively improving the corrosion resistance and service life of the inner plate 11.

[0040] When the inner plate 11 is integrally formed by die casting, the first connecting port 333 can be used as a mold release outlet for core pulling and demolding; while the end where the second connecting port 334 is located can be a closed structure after die casting, and the second connecting port 334 can be formed by subsequent machining methods such as milling.

[0041] Furthermore, the cavity 331 gradually expands along the direction from the second connecting port 334 to the first connecting port 333 to facilitate smooth demolding during the die-casting process. Specifically, the third support portion 330 includes two opposing walls arranged in the Z direction. These two walls extend in opposite directions at an angle from the second connecting port 334 toward the first connecting port 333, causing the distance between them to gradually increase, thereby forming a gradually expanding channel with a demolding slope, significantly reducing core-pulling resistance and improving the feasibility and yield of die-casting.

[0042] Further, in this embodiment, please refer to Figure 8 and Figure 12 The first support portion 310 is provided with a first mounting hole 311 for the gantry lock 20 to be connected by fasteners. The reinforcing structure 200 includes a first reinforcing protrusion 221, which protrudes from the side of the first support portion 310 opposite to the accommodating space 301. The first mounting hole 311 penetrates the first reinforcing protrusion 221. Thus, by locally adding the first reinforcing protrusion 221 in the area of ​​the first mounting hole 311, the structural thickness and rigidity of the gantry lock 20 connection part are significantly improved, effectively dispersing the preload and working load of the fasteners, and greatly improving the tensile strength, shear strength, and fatigue resistance of the mounting point, thereby ensuring the reliability and safety of the gantry lock 20 for long-term use. In other embodiments, the gantry lock 20 can also be fixed to the first support portion 310 by a snap-fit ​​connection.

[0043] Furthermore, in this embodiment, the height of the first reinforcing protrusion 221 is 15mm to 18mm. Within this size range, the first reinforcing protrusion 221 can provide sufficient structural reinforcement without significantly increasing weight, while also considering formability. Specifically, the height of the first reinforcing protrusion 221 can be 15mm, 16mm, 17mm, or 18mm. In other embodiments, the height of the first reinforcing protrusion 221 can also be 13mm, 14mm, 19mm, or 20mm.

[0044] Further, in this embodiment, please refer to Figure 5 , Figure 18 and Figure 21The plate body 100 has a first protrusion 230 on the side facing the mounting cavity 101, and a recessed space is formed on the side of the first protrusion 230 facing away from the mounting cavity 101. The first reinforcing protrusion 221 is connected to the first protrusion 230. By adding the first protrusion 230 as a reinforcing structure 200, the structural strength is enhanced without significantly increasing the amount of material used. In addition, the connection of the first reinforcing protrusion 221 to the first protrusion 230 can effectively improve the overall rigidity and load-bearing capacity of the mounting area of ​​the door latch 20, and also significantly enhance the deformation resistance and fatigue resistance of this position, thereby reliably ensuring the installation stability and long-term reliability of the door latch 20.

[0045] Further, in this embodiment, please refer to Figures 1 to 3 The outer plate 12 is connected to the gate latch mounting part 300. That is, the gate latch mounting part 300 not only serves as the mounting structure for the gate latch 20, but also functions as the connection between the inner plate 11 and the outer plate 12. This improves the connection stability between the inner and outer plates 12 while avoiding the need for additional independent connecting brackets or reinforcing components, thus simplifying the overall structure of the inner plate 11. This helps reduce the number of parts, lighten the weight, and improve assembly efficiency. In other embodiments, the inner plate 11 and the outer plate 12 can also be connected at other locations.

[0046] Furthermore, in this embodiment, the door latch mounting part 300 is attached to and connected to the outer plate 12 around the periphery of the accommodating space 301. Thus, the door latch mounting part 300 and the outer plate 12 form a continuous and tight contact interface around the accommodating space 301, uniformly transferring loads through the close connection, avoiding localized stress concentration, and improving the structural durability of the door under vibration, impact, and other conditions. In addition, the outer plate 12 provides additional support to the mounting structure of the door latch 20, further ensuring the positional accuracy and operational reliability of the door latch 20 during long-term use. In other embodiments, the outer plate 12 may also be connected only to the first support part 310 or the second support part 320 of the door latch mounting part 300.

[0047] Further, in this embodiment, please refer to Figure 8 The first support portion 310 is provided with a bent first abutment portion 312, and each of the two second support portions 320 is provided with a bent second abutment portion 332. The two ends of the first abutment portion 312 are respectively connected to the two second abutment portions 332, and both the first abutment portion 312 and the second abutment portion 332 abut against the outer plate 12. In this way, a flange-like structure is formed to abut against the outer plate 12, ensuring a close fit between the gate latch mounting portion 300 and the outer plate 12. In other embodiments, an insertable protrusion adapted to the gate latch mounting portion 300 can also be formed on the outer plate 12. The insertable protrusion is inserted into the receiving space 301 and fits against each support portion.

[0048] Further, in this embodiment, please refer to Figure 8 The bending directions of both the first abutment portion 312 and the second abutment portion 332 are configured to face away from the accommodating space 301. This effectively prevents the abutment portions from encroaching on the effective installation area inside the accommodating space 301, thus preventing interference with the assembly of the gantry latch 20. In other embodiments, the first abutment portion 312 or the second abutment portion 332 may also be folded inwards towards the accommodating space 301.

[0049] Further, in this embodiment, please refer to Figure 8 At least one of the first abutment portion 312 and the second abutment portion 332 is provided with a second mounting hole 302, and the outer plate 12 is connected to the second mounting hole 302 by fasteners. Thus, the gantry lock mounting portion 300 can be connected to the outer plate 12 by fasteners, which is convenient to operate and has high connection reliability. In other embodiments, the first abutment portion 312 or the second abutment portion 332 can also be connected to the outer plate 12 by welding or bonding.

[0050] Further, in this embodiment, please refer to Figure 6 The first abutment portion 312 has a groove 313 on the side opposite to the outer plate 12, and the second mounting hole 302 is provided corresponding to the groove 313. In this way, the thickness at the location of the second mounting hole 302 can be reduced by providing the groove 313, facilitating fastener connection and ensuring the reliability of the fastener connection. Specifically, the groove 313 can be formed by milling, which helps to create a flat mating surface, ensuring the reliable connection between the latch mounting portion 300 and the outer plate 12.

[0051] Specifically, the third support portion 330 includes the second abutment portion 332. That is, the second abutment portion 332 is part of the third support portion 330. Specifically, the second abutment portion 332 is the upper wall of the third support portion 330. Since the cavity 331 is formed by first demolding and then milling, it is beneficial to ensure that the wall thickness of the second abutment portion 332 is suitable for fastener connection.

[0052] Further, in this embodiment, please refer to Figure 5 and Figure 8The reinforcing structure 200 also includes a third protrusion 260, which protrudes towards the outer panel 12. The third protrusion 260 forms a recessed space on the side opposite to the outer panel 12. A first protrusion 230 is formed within the recessed space of the third protrusion 260. The top door latch mounting part 300 is connected to the bottom wall of the third protrusion 260. This further enhances the overall rigidity and load-bearing capacity of the top door latch 20 mounting area, reliably ensuring the installation stability and long-term reliability of the top door latch 20. The outline of the third protrusion 260 can be trapezoidal, with its two bottom edges distributed along the width direction of the door. The bottom edge closer to the first folded edge 120 is shorter, while the bottom edge further away from the first folded edge 120 is longer. The shorter bottom edge also has a bent edge to enhance the structural strength of the third protrusion 260.

[0053] In one embodiment, a reinforcing structure 200 is integrally formed on the plate body 100, and the reinforcing structure 200 is at least located on the side of the plate body 100 facing the outer plate 12. Thus, by integrally forming the reinforcing structure 200 on the inner plate 11, the structural strength and rigidity of the inner plate 11 itself are effectively improved. This eliminates the need for additional reinforcing plates, independent supports, welded parts, or additional mounting plates, thereby meeting the overall mechanical performance requirements of the door and the installation needs of related functional components. This design not only simplifies the overall structure of the door and reduces the number of parts, but also reduces the complexity of manufacturing and assembly, which is beneficial for improving production efficiency and assembly accuracy.

[0054] Furthermore, the inner plate 11 is integrally formed with multiple mounting structures, and at least each mounting structure has a reinforcing structure 200 on its side. The mounting structure is used to install the top door latch 20, the bottom door latch 30, the hinge 40, the cable mechanism 60, or the driver 50. The mounting cavity 101 is used to accommodate the top door latch 20, the cable mechanism 60, or the driver 50. The mounting structure includes a top door latch mounting part 300.

[0055] In this embodiment, by integrally molding a dedicated mounting structure on the inner panel 11 and integrating a reinforcing structure 200 on its side, high-strength and high-precision mounting points can be provided for various key functional components without adding additional brackets or mounting plates. The placement of the reinforcing structure 200 adjacent to the mounting area effectively improves the local stiffness and fatigue resistance of the mounting point, avoiding deformation or failure caused by long-term stress. At the same time, the relevant functional components are directly arranged within the mounting cavity 101, which not only saves external layout space but also helps to improve the simplicity and aesthetics of the vehicle's rear design. Thus, by integrating the mounting structure and the reinforcing structure 200 into the inner panel 11 using an integral molding process, the number of parts and assembly steps are further reduced, which is conducive to modular manufacturing and improves production assembly efficiency.

[0056] Of course, it is also possible to improve the structural strength of the inner plate 11 by using a crisscrossing rib structure 200 on the inner plate 11 as a reinforcing structure.

[0057] In one embodiment, please refer to Figure 19 and Figure 22 The installation structure includes a ground door latch mounting part 400, which protrudes from the side of the plate body 100 opposite to the outer plate 12. The ground door latch mounting part 400 is used to install a ground door latch 30, which is used to achieve a detachable locking engagement between the ground door and the vehicle body. In this embodiment, by directly integrating the mounting point of the ground door latch 30 into the integrally formed structure of the inner plate 11, there is no need to set up additional independent brackets, welded parts or additional mounting plates, which significantly reduces the number of parts, simplifies the assembly process, and improves the geometric accuracy and long-term stability of the installation position, ensuring that the ground door can still be reliably locked to the vehicle body during frequent opening and closing.

[0058] Specifically, please refer to Figure 15 and Figure 17 The main body 110 has a door lock mounting portion 400 on each side of the door along its length. The door lock mounting portion 400 protrudes from the side of the main body 110 opposite to the outer panel 12 and is located on the side of the main body 110 away from the second folded edge portion 130. This symmetrical arrangement not only matches the installation requirements of the locking mechanisms on both sides of the vehicle body but also makes the load distribution more uniform, improving the overall structural stress balance and torsional stiffness.

[0059] Further, in this embodiment, please refer to Figure 19 The ground door latch mounting portion 400 has opposing first side 401 and second side 402. The ground door latch 30 is mounted on the first side 401, and the second side 402 is connected to the reinforcing structure 200. Thus, after the ground door latch 30 is mounted on the first side 401, the reinforcing structure 200 can enhance the structural strength of the ground door latch mounting portion 400 by connecting to the second side 402, effectively resisting the bending moment and shear force generated during latch operation. Specifically, the first side 401 and the second side 402 are arranged opposite each other in the Y-direction, with the first side 401 of the two ground door latch mounting portions 400 located on opposite sides.

[0060] Further, in this embodiment, please refer to Figure 19The ground door latch mounting part 400 is provided with a third mounting hole 403 for the ground door latch 30 to be connected by fasteners. The reinforcing structure 200 includes a second reinforcing protrusion 222 disposed opposite to the third mounting hole 403. In this way, the structural strength of the fastener connection position can be improved by the second reinforcing protrusion 222, which can effectively bear the pre-tightening force and working load of the fastener, prevent the inner plate 11 from collapsing locally or the periphery of the third mounting hole 403 from tearing, and improve the installation reliability of the ground door latch 30.

[0061] Further, in this embodiment, please refer to Figure 19 The reinforcing structure 200 further includes a first reinforcing rib 211, which is connected to the plate body 100 and the second reinforcing protrusion 222. This further enhances the structural strength of the mounting position of the door latch 30, thereby improving the installation reliability of the door latch 30.

[0062] Furthermore, in this embodiment, the height of the second reinforcing protrusion 222 is 12mm to 15mm. Within this size range, the second reinforcing protrusion 222 can provide sufficient structural reinforcement without significantly increasing weight, while also considering formability. Specifically, the height of the second reinforcing protrusion 222 can be 12mm, 13mm, 14mm, or 15mm. In other embodiments, the height of the second reinforcing protrusion 222 can also be 10mm, 11mm, 16mm, or 18mm.

[0063] Further, in this embodiment, please refer to Figure 19 The first side surface 401 is provided with a first alignment protrusion 241 corresponding to the third mounting hole 403. This first alignment protrusion 241 serves as a positioning reference during the assembly process of the door latch 30, guiding the door latch 30 to accurate positioning during installation, significantly improving assembly accuracy and reducing misalignment or tilting caused by manual operation deviations. Furthermore, the first alignment protrusion 241 is achieved by forming a small protrusion in a localized area around the third mounting hole 403, eliminating the need to increase the overall thickness of the door latch mounting portion 400, saving materials and avoiding impact on the surrounding structural layout. The locally protruding first alignment protrusion 241 also facilitates the subsequent formation of a flat, high-precision mating surface on its top through milling or other machining methods, ensuring uniform force distribution when the fastener is tightened, improving the fastener's fit, preload retention, and long-term reliability.

[0064] Further, in this embodiment, the height of the first alignment protrusion 241 is 0.1mm to 0.5mm. Within this range, the height of the first alignment protrusion 241 achieves precise positioning, reliable limiting, and good fit, while also facilitating molding. Specifically, the height of the first alignment protrusion 241 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm. In other embodiments, the height of the first alignment protrusion 241 can also be 0.05mm, 0.08mm, 0.6mm, or 0.7mm.

[0065] Further, in this embodiment, please refer to Figure 9 and Figure 19 The plate body 100 has a second protrusion 250 on the side facing the outer plate 12. The second protrusion 250 has a recessed space on the side facing away from the outer plate 12. The door latch mounting part 400, the second reinforcing protrusion 222, and the first reinforcing rib 211 are all located in the recessed space of the second protrusion 250. The door latch mounting part 400 and the first reinforcing rib 211 are both connected to the sidewall of the second protrusion 250. By setting the second protrusion 250 as a local reinforcing structure 200, the overall rigidity of the inner plate 11 can be effectively improved without significantly increasing the material usage. Furthermore, the connection of the door latch mounting part 400 and the first reinforcing rib 211 to the second protrusion 250 effectively improves the overall rigidity and load-bearing capacity of the door latch 30 mounting area, and significantly enhances the deformation resistance and fatigue resistance of this location, thereby reliably ensuring the installation stability and long-term reliability of the door latch 30.

[0066] Further, in this embodiment, please refer to Figure 9 The reinforcing structure 200 includes multiple intersecting second reinforcing ribs 212. The second reinforcing ribs 212 are located on the side of the plate body 100 near the outer plate 12 and connected to the sidewall of the second protrusion 250. This design allows the reinforcing structure 200 on the outer side of the second protrusion 250 and the reinforcing structure 200 in the inner recessed space to form a cooperative force transmission path through the sidewall of the second protrusion 250, further improving the overall structural stability of the installation area of ​​the door latch 30, effectively suppressing fretting caused by vibration and load, thereby ensuring the long-term reliability of the door latch 30 connection.

[0067] Further, in this embodiment, please refer to Figure 9 and Figure 19The bottom wall of the second protrusion 250 has a clearance opening 251 on the side where the first side 401 is located. This clearance opening 251 provides necessary space for the assembly operation of the ground door latch 30 (such as tightening fasteners or inserting tools), effectively avoiding structural interference and improving assembly convenience and accessibility for later maintenance. On the other hand, it can also avoid corresponding structures on the vehicle body that cooperate with the ground door latch 30 (such as locking pins, locking rings, etc.), ensuring smooth movement of the ground door during opening and closing, and improving the stability and reliability of the locking engagement.

[0068] Further, in this embodiment, please refer to Figure 9 and Figure 19 The bottom wall of the second protrusion 250 includes a reinforcing wall 252, which is located on the side where the first side 401 is located and connected to the first side 401. It can be understood that the reinforcing wall 252 and the clearance opening 251 are both located on the side where the first side 401 is located and are arranged adjacent to each other. That is, in this area, part of the bottom wall of the second protrusion 250 is cut off to form the clearance opening 251, while part is retained to form the reinforcing wall 252. This design, while meeting functional clearance requirements, effectively supports the first side 401 by partially retaining material to form structural reinforcement, improving the rigidity and deformation resistance of the latch installation area, thus balancing functionality and structural strength.

[0069] In one embodiment, please refer to Figure 15 , Figure 17 and Figure 20 The mounting structure includes a hinge mounting position 500, which is formed on the side of the plate body 100 opposite to the outer plate 12. The hinge mounting position 500 is used to mount a hinge 40, which enables a rotatable connection between the door and the vehicle body. In this embodiment, the hinge mounting position 500 on the plate body 100 allows the hinge 40 to be directly connected and installed without the need for additional independent brackets, welded parts, or additional mounting plates, thus reducing the number of parts and simplifying the assembly process.

[0070] Specifically, the hinge mounting position 500 is formed on the side of the first folded edge 120 opposite to the outer panel 12, and at least two hinge mounting positions 500 are distributed along the length of the door. This arrangement allows the door to be rotatably connected to the vehicle body through at least two hinge points in its side area, which not only improves the redundancy and torsional stiffness of the connection structure between the door and the vehicle body, but also effectively suppresses the shaking and swaying of the door during opening or closing, thereby ensuring the smoothness and consistency of the opening and closing action.

[0071] Further, in this embodiment, please refer to Figure 16The hinge mounting position 500 is provided with a fourth mounting hole 501, and the hinge 40 is mounted in the fourth mounting hole 501 by fasteners. In this way, it can be ensured that the hinge 40 is reliably connected to the hinge mounting position 500, ensuring the connection stability between the door and the vehicle body. At the same time, the fastener connection facilitates assembly and subsequent maintenance, which helps to improve the assembly efficiency of the vehicle.

[0072] Further, in this embodiment, please refer to Figure 10 The reinforcing structure 200 includes a third reinforcing protrusion 223 corresponding to the fourth mounting hole 501, located on the side of the plate body 100 facing the outer plate 12. Thus, the third reinforcing protrusion 223 enhances the thickness of the inner plate 11 at the fourth mounting hole 501, thereby improving the structural strength of the fastener connection location. This effectively supports the preload and working load of the fasteners, preventing local collapse of the inner plate 11 or tearing around the fourth mounting hole 501, and improving the reliability of the connection between the door and the hinge 40.

[0073] Further, in this embodiment, please refer to Figure 10 The fourth mounting hole 501 penetrates the third reinforcing protrusion 223. Thus, the fastener can be connected to the third reinforcing protrusion 223, thereby further improving the connection stability between the hinge 40 and the door.

[0074] Furthermore, in this embodiment, the height of the third reinforcing protrusion 223 is 15mm to 18mm. Within this size range, the third reinforcing protrusion 223 can provide sufficient structural reinforcement without significantly increasing weight, while also considering formability. Specifically, the height of the third reinforcing protrusion 223 can be 15mm, 16mm, 17mm, or 18mm. In other embodiments, the height of the third reinforcing protrusion 223 can also be 13mm, 14mm, 19mm, or 20mm.

[0075] Further, in this embodiment, please refer to Figure 10 The second reinforcing rib 212 is connected to the third reinforcing protrusion 223. Thus, by adding the second reinforcing rib 212 around the third reinforcing protrusion 223, the concentrated load borne by the hinge 40 mounting area is effectively transferred to the plate body 100, thereby further improving the overall rigidity and deformation resistance of the hinge 40 mounting position, ensuring the installation stability of the hinge 40, and thus ensuring the long-term reliability of the rotating connection between the door and the vehicle body.

[0076] Further, in this embodiment, please refer to Figure 10The different sides of the third reinforcing protrusion 223 are all connected to the plate body 100 via the second reinforcing rib 212. Specifically, taking the side of the third reinforcing protrusion 223 connected to the plate body 100 as the bottom side, its top and peripheral sides are all connected to the plate body 100 via the second reinforcing rib 212. In this way, the structural strength of the hinge 40 mounting position can be further enhanced to ensure the installation stability of the hinge 40, thereby ensuring the reliability of the connection between the door and the vehicle body.

[0077] Further, in this embodiment, please refer to Figure 15 The second folded edge 130 has a clearance recess 131 for avoiding the hinge 40. Since the hinge 40 typically has a certain volume and rotation space requirements, if the inner panel 11 lacks a clearance design at its edge, it may limit the maximum opening angle of the door, or even lead to assembly difficulties or operational jamming. This embodiment, by providing a clearance recess 131 in the second folded edge 130, not only ensures the free movement of the hinge 40 but also improves the smoothness of the door's opening and closing. Furthermore, the clearance recess 131 can be integrally formed into the inner panel 11 without additional cutting or post-processing, balancing functionality and manufacturing efficiency.

[0078] In one embodiment, please refer to Figure 7 and Figure 11 The mounting structure includes a first driver mounting position 600, which is formed on the side of the plate body 100 facing the outer plate 12. The first driver mounting position 600 is used to mount a driver 50, which is configured to drive the connection to the hinge 40. In this embodiment, the first driver mounting position 600 on the plate body 100 allows the housing of the driver 50 to be directly connected for fixed mounting, eliminating the need for additional independent brackets, welded parts, or additional mounting plates, thus reducing the number of parts and simplifying the assembly process.

[0079] Specifically, please refer to Figure 7 The first driver mounting position 600 is formed on the side of the first folded edge 120 facing the outer plate 12. This position is close to the hinge 40 mounting area, which facilitates the mechanical connection between the output end of the driver 50 and the hinge 40, shortens the transmission path, and reduces energy loss and structural complexity.

[0080] Further, in this embodiment, please refer to Figure 10 The first driver mounting position 600 is provided with a fifth mounting hole 601, and the housing of the driver 50 is connected to the fifth mounting hole 601 by fasteners. In this way, the driver 50 can be mounted to the first driver mounting position 600 by fasteners, which is convenient to operate and has high connection reliability. In other embodiments, the housing of the driver 50 can also be fixed to the first driver mounting position 600 by plugging, welding, or other methods.

[0081] Further, in this embodiment, please refer to Figure 10 The first driver mounting position 600 is further provided with a second alignment protrusion 242, and the fifth mounting hole 601 is provided corresponding to the second alignment protrusion 242. This second alignment protrusion 242 serves as a positioning reference during the assembly process of the driver 50, guiding the driver 50 to accurate positioning during installation, significantly improving assembly accuracy and reducing misalignment or tilting caused by human error. Furthermore, the second alignment protrusion 242 is achieved by forming a small protrusion in a localized area around the fifth mounting hole 601, eliminating the need to increase the overall plate thickness at the first folded edge 120, saving material and avoiding impact on the surrounding structural layout. This locally protruding second alignment protrusion 242 also facilitates the subsequent formation of a flat, high-precision mating surface on its top through milling or other machining methods, ensuring uniform force distribution during fastener tightening, and improving the fastener's fit, preload retention, and long-term reliability.

[0082] Further, in this embodiment, the height of the second alignment protrusion 242 is 0.1mm to 0.5mm. Within this range, the height of the second alignment protrusion 242 achieves precise positioning, reliable limiting, and good fit, while also facilitating molding. Specifically, the height of the second alignment protrusion 242 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm. In other embodiments, the height of the second alignment protrusion 242 can also be 0.05mm, 0.08mm, 0.6mm, or 0.7mm.

[0083] Further, in this embodiment, please refer to Figure 10 , Figure 13 and Figure 23 The driver 50 is installed in the mounting cavity 101. The first driver mounting position 600 is formed on the side of the first folded edge 120 facing the outer plate 12. The first folded edge 120 is also provided with a first clearance through hole 602. The first clearance through hole 602 is used to avoid the connecting rod 51 of the driver 50. The driver 50 is driven to be connected to the hinge 40 through the connecting rod 51.

[0084] The actuator 50 is installed inside the mounting cavity 101, protecting its working environment and improving system reliability and the simplicity of the vehicle's rear design. Meanwhile, the first clearance hole 602 prevents the inner plate 11 from interfering with the movement of the connecting rod 51, ensuring that the actuator 50 can reliably drive the hinge 40 and rotate the bottom door.

[0085] Specifically, a transmission link 52 is rotatably connected to the output shaft of the driver 50. One end of the connecting rod 51 is rotatably connected to the end of the transmission link 52 through a ball joint structure, and the other end is rotatably connected to the ball head bolt on the rotating arm of the hinge 40 through a ball joint structure, thus realizing the driving connection between the driver 50 and the hinge 40.

[0086] Furthermore, in this embodiment, the outer plate 12 is provided with a second driver mounting position for connecting the housing of the driver 50. In this way, the housing of the driver 50 can be fixedly connected to the first driver mounting position 600 of the inner plate 11 and the second driver mounting position of the outer plate 12 at different positions, forming a stable mounting structure with multi-point support, which significantly improves the vibration resistance and positional stability of the driver 50 under vibration, shock and other working conditions.

[0087] Furthermore, in this embodiment, the second driver mounting position is provided on the side of the main body 110 away from the first folded edge 120. Thus, the driver 50 housing is supported on both sides along its height direction by the outer plate 12 and the inner plate 11 respectively, which helps optimize load distribution and avoid fatigue failure caused by cantilever effect.

[0088] Further, in this embodiment, please refer to Figure 1 The second driver mounting position is provided with a sixth mounting hole 12b, and the housing of the driver 50 is connected to the sixth mounting hole 12b by fasteners. In this way, the housing of the driver 50 can be fixed to the second driver mounting position of the outer plate 12 by fasteners, which is convenient to operate and has high connection reliability. In other embodiments, the housing of the driver 50 can also be fixed to the second driver mounting position by plugging, welding, or other methods.

[0089] Further, in this embodiment, please refer to Figure 7 At least the main body 110 and the first folded edge 120 are provided with a second reinforcing rib 212 on the side facing the outer plate 12. In this way, the second reinforcing rib 212 can be distributed in most areas of the inner plate 11 to strengthen the structural strength of the inner plate 11, especially to strengthen the structure of the first folded edge 120, which can ensure the stable installation of components such as the hinge 40 and the driver 50.

[0090] In one embodiment, please refer to Figure 14 and Figure 24 The vehicle includes a cable mechanism 60, which includes a cable mounting body 62 and a cable body 61. The cable body 61 is connected to the vehicle body. Please refer to [further details]. Figure 7The mounting structure includes a cable mechanism mounting position 700, which is formed on the side of the plate body 100 facing the outer plate 12. The cable mechanism mounting position 700 is used to mount the cable mounting body 62.

[0091] It is understandable that the cable body 61 extends and retracts during the opening and closing of the ground door; after the ground door is opened, the cable can provide Z-axis support for the ground door to prevent the ground door from falling or shaking due to gravity, thereby improving the stability of the ground door in the open state.

[0092] In this embodiment, the cable mechanism mounting position 700 on the plate body 100 can be directly connected to the cable mounting body 62 to fix the cable mechanism 60. There is no need to set up an independent bracket, welded parts or additional mounting plate, which reduces the number of parts, simplifies the assembly process, and improves the geometric accuracy of the installation position and the long-term connection reliability.

[0093] Specifically, the cable mechanism mounting position 700 is formed on the side of the first folded edge 120 facing the outer panel 12; wherein, along the length of the door, one cable mechanism mounting position 700 is provided on each side of the first folded edge 120, and the main body 110 is located between the two cable mechanism mounting positions 700. This symmetrical arrangement ensures that the cable mechanism 60 is evenly stressed on both sides of the door, improving the overall support rigidity, and matches the cable anchor points on both sides of the vehicle body, ensuring that the door opens smoothly and without tilting. At the same time, the first folded edge 120 is partially arranged around the main body 110, which is beneficial for forming an inner panel 11 with higher structural strength, thereby improving the structural stability of the door.

[0094] Furthermore, in this embodiment, the cable mounting body 62 is installed in the cable mechanism mounting position 700 using fasteners. Thus, the cable mounting body 62 can be fixed to the inner plate 11 by fasteners, which is convenient to operate and provides high connection reliability. In other embodiments, the cable mounting body 62 can also be fixed to the first driver mounting position 600 by plugging, welding, or other methods.

[0095] Further, in this embodiment, please refer to Figure 9 and Figure 14The cable mechanism mounting position 700 has a second clearance through hole 702 and at least two seventh mounting holes 701. The second clearance through hole 702 is used to avoid the cable body 61. The at least two seventh mounting holes 701 are arranged around the second clearance through hole 702. The cable mounting body 62 includes a seat 63, which is connected to the seventh mounting holes 701 by fasteners. In this way, the second clearance through hole 702 can avoid the cable body 61's threading path, ensuring the cable body 61's extension and retraction space. The seat 63 is fixed at multiple points, enhancing its torsional and vibration resistance, and preventing loosening or failure due to long-term dynamic loads. Specifically, the seventh mounting holes 701 are configured as flared holes to facilitate demolding and core pulling during the die-casting process, thereby achieving integral molding of the seventh mounting holes 701 and the inner plate 11, significantly reducing subsequent machining processes and workload, while ensuring hole position accuracy and structural integrity.

[0096] Further, in this embodiment, please refer to Figure 9 The plate body 100 has a third alignment protrusion 243 on the side facing the outer plate 12, and the seventh mounting hole 701 is provided corresponding to the third alignment protrusion 243. This third alignment protrusion 243 serves as a positioning reference during the assembly process of the cable mounting body 62, guiding the cable mounting body 62 to accurate positioning during installation, significantly improving assembly accuracy and reducing misalignment or tilting caused by human error. Furthermore, the third alignment protrusion 243 is achieved by forming a small protrusion in a localized area around the seventh mounting hole 701, eliminating the need to increase the overall plate thickness at the first folded edge 120, saving materials and avoiding impact on the surrounding structural layout. This locally protruding third alignment protrusion 243 also facilitates the formation of a flat, high-precision mating surface on its top through subsequent milling or other machining methods, ensuring uniform force distribution during fastener tightening and improving the fastener's fit, preload retention, and long-term reliability. Specifically, the seventh mounting hole 701 gradually widens in the direction approaching the third alignment protrusion 243.

[0097] Further, in this embodiment, the height of the third alignment protrusion 243 is 0.1mm to 0.5mm. Within this range, the height of the third alignment protrusion 243 achieves precise positioning, reliable limiting, and good fit, while also facilitating molding. Specifically, the height of the third alignment protrusion 243 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm. In other embodiments, the height of the third alignment protrusion 243 can also be 0.05mm, 0.08mm, 0.6mm, or 0.7mm.

[0098] Further, in this embodiment, please refer to Figure 9The third alignment protrusion 243 is provided in at least two forms, with each seventh mounting hole 701 corresponding to one of the third alignment protrusions 243. This allows for individual positioning of each seventh mounting hole 701, achieving multi-point positioning assembly and further improving assembly consistency. In other embodiments, only one third alignment protrusion 243 may be provided, with each seventh mounting hole 701 corresponding to the third alignment protrusion 243.

[0099] Further, in this embodiment, please refer to Figure 9 and Figure 14 The cable mechanism mounting position 700 is also provided with an eighth mounting hole 703, which is located on the bottom wall of the second protrusion 250. The cable mounting body 62 includes a mounting leg 64, which is connected to the eighth mounting hole 703 by fasteners.

[0100] Specifically, the bottom wall of the second protrusion 250 also includes a support wall 253. The support wall 253 and the reinforcing wall 252 are distributed on opposite sides of the clearance opening 251. The support wall 253 is located at the corner of the second protrusion 250, and the eighth mounting hole 703 is provided on the support wall 253. The location of the second protrusion 250 already forms a local reinforcement structure. The mounting leg 64 is connected to the bottom wall of the second protrusion 250 by fasteners, which helps to improve the connection stability between the cable mounting body 62 and the inner plate 11, thereby ensuring the installation reliability of the cable mechanism 60.

[0101] Furthermore, the eighth mounting hole 703 is located adjacent to the clearance opening 251, which facilitates visual inspection or tool operation of the assembly status of the mounting leg 64 and the eighth mounting hole 703 through the clearance opening 251, ensuring that it is properly tightened. In particular, when the fastener passes through the eighth mounting hole 703 from the side of the inner plate 11 away from the outer plate 12 and is then connected to the mounting leg 64, it helps to further improve the assembly quality and reliability.

[0102] Furthermore, the second reinforcing rib 212 is distributed on the first folded edge 120 and connected to the side wall of the second protrusion 250. This not only improves the overall rigidity of the inner plate 11, but also enhances the local load-bearing capacity of the cable mechanism 60 installation area. It effectively suppresses structural deformation or fatigue damage caused by the working load of the cable body 61, and further ensures the stable installation and reliable operation of the cable mechanism 60.

[0103] In one embodiment, the inner plate 11 is integrally formed by die casting. Die casting enables the manufacturing of high-precision, highly complex integrated structures, avoiding the splicing of multiple parts and subsequent welding processes. On the one hand, it significantly reduces the number of parts and assembly time, improving production efficiency; on the other hand, the integrally formed structure has no weld seams or connection gaps, resulting in superior overall rigidity and fatigue performance. In other embodiments, the inner plate 11 can also be formed by other methods, such as stamping or hydroforming.

[0104] In one embodiment, the inner panel 11 is made of magnesium alloy. Using magnesium alloy as the material for the inner panel 11 can significantly reduce the weight of the door assembly while ensuring sufficient strength and rigidity, contributing to overall vehicle lightweighting. Simultaneously, magnesium alloy possesses excellent specific strength, vibration damping performance, and electromagnetic shielding capabilities, which are beneficial for improving the durability and NVH performance of the door under high-frequency vibration environments. Combined with the aforementioned die-casting process, magnesium alloy is particularly suitable for manufacturing complex thin-walled structures, further leveraging its advantages in lightweighting and functional integration. In other embodiments, the inner panel 11 can also be made of other materials, such as aluminum alloy or carbon fiber composite material.

[0105] In one embodiment, the outer panel 12 is made of aluminum alloy. Using aluminum alloy as the material for the outer panel 12 effectively reduces the weight of the door, working in conjunction with the magnesium alloy inner panel 11 to achieve overall weight reduction. Simultaneously, aluminum alloy has excellent surface treatment properties, meeting high appearance quality requirements, and its good corrosion resistance also extends the service life of the door in harsh environments such as humidity and salt spray. In other embodiments, the outer panel 12 can also be made of other materials, such as steel or engineering plastics.

[0106] In one embodiment, the plate body 100 is provided with a weight-reduction passage 270. It can be understood that the weight-reduction passage 270 is a through-hole or hollow structure formed by removing part of the material in non-critical load-bearing areas. It typically avoids the installation areas of functional components and the main load transmission paths, effectively reducing the mass of the inner plate 11 without significantly affecting the overall structural stiffness and strength, thus further promoting lightweight design. Simultaneously, the weight-reduction passage 270 can also serve a process function, such as acting as an venting channel during die casting, improving the flow of molten metal, and reducing casting defects such as porosity and shrinkage. In the coating process, it can also promote the flow of electrophoretic solution and improve the uniformity of the anti-corrosion coating coverage in the inner cavity. Specifically, the plate body 100 is provided with multiple weight-reduction passages 270, one of which is positioned relative to and connected to the accommodating space 301, achieving both localized weight reduction and enhanced process accessibility within the accommodating space 301.

[0107] The present invention also proposes a vehicle including a ground door, the specific structure of which is as described in the above embodiments. Since the vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0108] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A ground door, used in a vehicle, characterized in that, The ground door includes an inner panel and an outer panel. The inner panel includes an integrally formed panel body and a top door latch mounting part. An mounting cavity is formed between the panel body and the outer panel. The top door latch mounting part protrudes into the mounting cavity and forms an accommodating space for installing the top door latch. The top door latch is used to realize a detachable locking engagement between the ground door and the top door.

2. The ground door as described in claim 1, characterized in that, The gate lock mounting part includes a first support part and two second support parts that form the accommodating space. Each side of the first support part is connected to a second support part, and the gate lock is mounted on the first support part.

3. The ground door as described in claim 2, characterized in that, The Tianmen lock mounting part also includes two third support parts, which are located on opposite sides of the two second support parts. The third support parts and the corresponding second support parts form a cavity.

4. The ground door as described in claim 3, characterized in that, The plate body has a first communication port that connects to the cavity, and the second support portion and the third support portion are also configured to form a second communication port that connects to the cavity. The first communication port and the second communication port are arranged opposite to each other.

5. The ground door as described in claim 3, characterized in that, The first support portion has a first abutment portion with its edge bent, and the third support portion includes a second abutment portion. The two ends of the first abutment portion are respectively connected to the two second abutment portions, and both the first abutment portion and the second abutment portion abut against the outer plate.

6. The ground door as described in claim 5, characterized in that, The first abutting part and / or the second abutting part are connected to the outer plate by fasteners.

7. The ground door as described in claim 2, characterized in that, The first support portion is provided with a first mounting hole for the gantry lock to be connected by a fastener. The first support portion has a first reinforcing protrusion on the side opposite to the accommodating space, and the first mounting hole passes through the first reinforcing protrusion.

8. The ground door as described in claim 7, characterized in that, The plate body has a first protrusion on the side facing the mounting cavity, and the first protrusion has a recessed space on the side facing away from the mounting cavity. The first reinforcing protrusion is connected to the first protrusion.

9. The ground door as described in any one of claims 1 to 8, characterized in that, The inner plate is integrally formed by die casting. And / or, the inner plate is configured to be made of magnesium alloy; And / or, the outer panel is configured to be made of aluminum alloy; And / or, the plate body is provided with a weight-reduction opening.

10. A vehicle, characterized in that, Includes the ground door as described in any one of claims 1 to 9.

Images