Tailgate frame and vehicle

Abstract

The application provides a back tail door framework and a vehicle, and belongs to the technical field of vehicle body structure, and comprises a ring beam, two longitudinal beams and a middle cross beam; the ring beam is enclosed to form a closed loop along the edge contour of an engine compartment, has a front beam section and a rear beam section opposite in the front-rear direction of the vehicle body, and has two side beam sections opposite in the width direction of the vehicle body; the two longitudinal beams are arranged in the ring beam at intervals in the width direction of the vehicle body, the front ends of the two longitudinal beams are fixedly connected to the front beam section and connected to the vehicle body framework through a tail door hinge; the middle cross beam is connected between the two longitudinal beams and connected to a lock buckle mounting plate between the rear beam section; wherein the front beam section, the two longitudinal beams and the middle cross beam jointly enclose a perspective window, and a decorative plate mounting plate is connected between the longitudinal beam and the side beam section on the same side of the perspective window. The back tail door framework provided by the application can increase the perspective visual field range inside the engine compartment, and can also consider the overall structural rigidity and lightweight index of the back tail door.

Description

Technical Field

[0001] This application belongs to the field of vehicle body structure technology, and more specifically, relates to a rear tailgate frame and a vehicle. Background Technology

[0002] Vehicle engines come in two configurations: front-mounted and rear-mounted. Rear-mounted engine structures are commonly found in performance vehicles such as supercars. With the increasing market demand for rear-mounted engine vehicles, the engine hood, serving as the tailgate, is a critical component of the vehicle body, making its rigidity and lightweight design paramount. Structurally, the tailgate of a rear-mounted engine vehicle consists of an inner panel as the frame and an outer panel as the trim, with their edges overlapping and fixed together. To ensure rigidity, the inner panel typically incorporates reinforcing ribs through welding or direct one-piece stamping.

[0003] Currently, rear-engine vehicles, especially supercars, require visibility into the engine compartment. Therefore, a glass window is often added to the tailgate. However, because the inner tailgate panel has reinforcing ribs, the glass window must avoid these ribs, resulting in a very limited field of vision and preventing a true view of the engine compartment. Furthermore, installing the glass window requires corresponding openings on both the inner and outer panels, leading to a loss of rigidity in the window area. Adding reinforcing structures at the window location would complicate the overall tailgate structure, negatively impacting weight reduction. Utility Model Content

[0004] The purpose of this application is to provide a rear tailgate frame that increases the field of vision inside the engine compartment while taking into account the overall structural rigidity and lightweight performance of the rear tailgate.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: Firstly, embodiments of this application provide a rear tailgate frame, comprising: The ring beam forms a closed loop along the edge contour of the engine compartment, and has a front beam section and a rear beam section that are opposite each other in the front-rear direction of the vehicle body, as well as two side beam sections that are opposite each other in the width direction of the vehicle body. Two longitudinal beams are spaced apart within the ring beam along the width of the vehicle body. The front ends of both longitudinal beams are fixedly connected to the front beam section and connected to the vehicle body frame via the tailgate hinge. The middle crossbeam connects the two longitudinal beams and is connected to the rear beam section by a locking mounting plate; The front beam, two longitudinal beams, and the middle transverse beam together form a viewing window, and decorative panel mounting plates are connected between the longitudinal beams and the side beams on the same side as the viewing window.

[0006] Compared with the prior art, the solution shown in this application uses a rear tailgate frame composed of a ring beam, two longitudinal beams and a middle cross beam to replace the traditional rear tailgate inner panel. The two longitudinal beams are fixed inside the ring beam and can form a force transmission path along the front and rear directions of the vehicle body. The middle cross beam is supported between the two longitudinal beams along the width direction of the vehicle body and can form a force transmission path in the width direction of the vehicle body. The trim panel mounting plate provides the rear tailgate trim panel mounting point and can also form a force transmission path between the longitudinal beams and the side beams. The latch mounting plate provides the tailgate latch mounting point and can also form a force transmission path between the middle cross beam and the rear beams. This not only ensures the rigidity performance of the overall structure of the rear tailgate in the front and rear and width directions of the vehicle body, but also saves a lot of reinforcing components, which is conducive to improving the lightweight performance of the rear tailgate assembly.

[0007] The front end of the longitudinal beam serves as both a force transmission path along the front-rear direction of the vehicle body and a force transmission path constructed in the width direction of the vehicle body based on the trim panel mounting plate. Therefore, connecting the front ends of the two longitudinal beams to the vehicle body frame through the tailgate hinge helps to improve the connection strength between the tailgate frame and the vehicle body frame, thereby improving the stability of the tailgate opening and closing movement.

[0008] By using two longitudinal beams in conjunction with the front beam section and the middle cross beam, a large viewing window can be formed inside the ring beam. Compared with the traditional structural form, it can not only greatly increase the viewing area and truly achieve complete visualization of the cabin interior, but also has a simple structure that does not require additional reinforcing components to ensure the rigidity of the viewing window area, which is conducive to further promoting the achievement of lightweight indicators.

[0009] In some embodiments, the aforementioned ring beam, longitudinal beam, and central cross beam are all rectangular tube beams formed by extrusion aluminum profile process, while the latch mounting plate and decorative panel mounting plate are made of stamped plates.

[0010] In conjunction with the first aspect, in one possible implementation, the ring beam includes: The front crossbeam, as the front beam section, is located at the front of the engine compartment; The curved beam has one end fixedly connected to one end of the front crossbeam, and the other end extends along the edge contour of the engine compartment and is fixedly connected to the other end of the front crossbeam. The portion of the curved beam opposite the front crossbeam forms the rear beam segment, and the portions of the curved beam on both sides of the rear beam segment form the side beam segments.

[0011] In the above technical solution, the ring beam is composed of two beams connected together. The front crossbeam extends along the width of the vehicle body and is located at the front end of the engine compartment, which can provide a force transmission path in the width of the vehicle body. The curved beam is formed into a C-shaped structure after being bent twice in the same direction. This allows the front crossbeam and the curved beam to form a complete closed ring beam structure with only two connection points. This not only helps to reduce the number of connection points and promote the improvement of the overall structural strength, but also helps to reduce the cumulative error of the connection, thereby improving the overall assembly accuracy and reducing the production cycle time.

[0012] In some embodiments, the two ends of the rear beam segment are respectively connected to the corresponding side beam segments by arc segments, and the rear ends of the two longitudinal beams are respectively fixed to the two arc segments.

[0013] In the above technical solution, setting an arc segment between the side beam segment and the rear beam segment for transition is beneficial to the overall forming of the curved beam and can avoid stress concentration. Fixing the rear end of the longitudinal beam to the arc segment can maximize the spacing between the two longitudinal beams in the vehicle width direction, thereby improving the field of view of the perspective window.

[0014] For example, multiple trim panel mounting plates are connected between the longitudinal beam and the side beam segment on the same side, and the trim panel mounting plates are spaced apart along the front-rear direction of the vehicle body.

[0015] In the above technical solution, by arranging multiple trim panel mounting plates along the front and rear directions of the vehicle body, the longitudinal beams and side beams can effectively transmit force and distribute loads at various positions along the width direction of the vehicle body. This not only improves the overall structural rigidity but also ensures that the tailgate trim panel has sufficient and uniform mounting points, thereby improving the installation stability of the tailgate trim panel on the rear tailgate frame.

[0016] For example, the trim panel mounting plate has overlapping edges on both sides along the width of the vehicle body, and the overlapping edges on both sides are respectively connected and fixed to the side beam section and the longitudinal beam. The trim panel mounting plate also has reinforcing folded edges on both sides along the front and rear directions of the vehicle body.

[0017] In the above technical solution, considering that the structure of the rear-mounted engine compartment is characterized by being wider at the front and narrower at the rear, the space between the longitudinal beams and the side beams gradually narrows from front to rear. Therefore, the trim panel mounting plate is provided with overlapping edges that overlap the longitudinal beams and the side beams, and is fixed to the longitudinal beams and the side beams using the overlapping edges. On this basis, reinforced folded edges are provided on the front and rear sides of the trim panel mounting plate, which can improve the support stiffness of the trim panel mounting plate in the width direction of the vehicle body, thereby improving the structural stiffness of the overall structure in the width direction of the vehicle body.

[0018] For example, since the longitudinal beams and side beams are spaced far apart in the area near the front beam, the trim panel mounting plate in this area can be fixed directly to the side walls opposite the longitudinal beams and side beams without overlapping edges. Of course, in order to ensure sufficient contact area and overall structural rigidity, the trim panel mounting plate can adopt a structure in which its edges form a continuous folded edge.

[0019] In conjunction with the first aspect, in one possible implementation, both the trim panel mounting plate and the latch mounting plate have several recessed or raised mounting surfaces, and each mounting surface is provided with mounting holes suitable for fasteners.

[0020] In the above technical solution, the recessed or raised mounting platform can ensure the stability of the tailgate trim panel on the trim panel mounting plate. At the same time, the mounting platform makes the surface of the trim panel mounting plate uneven, which can improve the structural strength without increasing the weight compared to a flat trim panel mounting plate.

[0021] In some embodiments, both the trim mounting plate and the latch mounting plate have several reinforcing ribs.

[0022] In the above technical solution, the structural strength of the trim panel mounting plate and the latch mounting plate can be improved by arranging reinforcing ribs, thereby increasing the overall structural rigidity of the rear tailgate frame. Specifically, these reinforcing ribs can be integrally stamped grooves or protrusions, thus avoiding an increase in the weight of the trim panel mounting plate and the latch mounting plate, thereby ensuring structural rigidity while also achieving lightweight performance.

[0023] In some embodiments, the tailgate hinge includes: The fixed arm is fixedly connected to the front end of the longitudinal beam at one end, and bent and extended to the front side of the front beam section at the other end. The connecting seat is fixedly connected to the vehicle frame and hinged to the extension end of the fixed arm.

[0024] In the above technical solution, the fixed arm serves to bypass the front beam section and connect to the front end of the longitudinal beam, thereby improving the reliability and stability of the connection with the body frame by utilizing the comprehensive force transmission path obtained by the longitudinal beam in the front-rear direction of the vehicle body and in the width direction of the vehicle body based on the trim panel mounting plate; after the connecting seat is fixed to the body frame, it is hinged at the end of the fixed arm before the front beam section is straightened. The structure is simple and stable, and can avoid the cumulative error problem caused by multiple connecting parts, thereby improving the assembly position accuracy.

[0025] For example, the front beam section is located between the two longitudinal beams, and the two longitudinal beams and the rear beam section together form an installation frame. The upper surface of the installation frame is provided with a ring of adhesive strips. The installation frame and the transparent cover are bonded and fixed by continuously applying adhesive to the side of the adhesive strips.

[0026] In the above technical solution, the transparent cover can be fixed to the upper surface of the mounting frame by adhesive bonding with a complete structure that completely covers the mounting frame. At the same time, in order to prevent adhesive loss, a retaining strip is set on the upper surface of the mounting frame to block and constrain the adhesive, thereby ensuring the continuity and reliability of the adhesive bonding and improving the installation stability of the transparent cover.

[0027] Secondly, embodiments of this application also provide a vehicle including the aforementioned rear tailgate frame.

[0028] The beneficial effects of the vehicle provided in this application embodiment are that, compared with the prior art, the aforementioned rear tailgate frame can replace the traditional rear tailgate inner panel using a rear tailgate frame composed of a ring beam, two longitudinal beams, and a middle cross beam. The two longitudinal beams, fixed inside the ring beam, can form a force transmission path along the front-rear direction of the vehicle body. The middle cross beam, supported between the two longitudinal beams along the width direction of the vehicle body, can also form a force transmission path in the width direction of the vehicle body. The trim panel mounting plate provides the rear tailgate trim panel mounting point and also forms a force transmission path between the longitudinal beams and the side beams. The latch mounting plate provides the tailgate latch mounting point and also forms a force transmission path between the middle cross beam and the rear beam. This eliminates a large number of reinforcing components, while maintaining the overall structural rigidity and lightweight performance of the rear tailgate. Furthermore, by using the two longitudinal beams in conjunction with the front beam and the middle cross beam, a large viewing window can be formed inside the ring beam. Compared with traditional structural forms, this not only greatly increases the viewing area but also truly achieves complete visualization of the interior of the engine compartment. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A three-dimensional structural diagram of the rear tailgate frame (including a transparent cover plate, but excluding the tailgate trim plate) provided in an embodiment of this application; Figure 2 A three-dimensional structural diagram of the rear tailgate frame (excluding the transparent cover and tailgate trim) provided in the embodiments of this application; Figure 3 A bottom view of the rear tailgate frame provided in an embodiment of this application; Figure 4 This is a three-dimensional structural diagram of the decorative panel mounting plate used in an embodiment of this application; Figure 5 This is a three-dimensional structural diagram of the decorative panel mounting plate used in another embodiment of this application; Figure 6A three-dimensional structural schematic diagram of the decorative panel mounting plate used in another embodiment of this application; Figure 7 This is a three-dimensional structural diagram of the latch mounting plate used in the embodiments of this application; Figure 8 This is a cross-sectional view of the assembly structure of the rear tailgate frame and the transparent cover in an embodiment of this application.

[0031] In the diagram: 10. Ring beam; 100. Mounting frame; 101. Front beam section; 102. Rear beam section; 103. Side beam section; 104. Arc section; 11. Front crossbeam; 12. Curved beam; 20. Longitudinal beam; 200. Viewing window; 30. Tailgate hinge; 31. Fixed arm; 32. Connecting seat; 40. Middle crossbeam; 50. Lock mounting plate; 60. Trim panel mounting plate; 61. Overlap edge; 62. Reinforced folded edge; 63. Continuous folded edge; 64. Mounting platform; 65. Mounting hole; 66. Reinforcing rib; 70. Sealing strip; 700. Adhesive; 80. Viewing cover plate. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0035] It should be noted that the directions or positional relationships indicated by "front", "rear", "inner", "outer", "up", and "down" in this embodiment are based on the vehicle's own orientation. The front of the vehicle represents "front", the rear of the vehicle represents "rear", the top of the vehicle represents "up", the bottom of the vehicle represents "down", the "inner" side refers to the side facing the driver's cab, and the "outer" side refers to the side facing the driver's cab.

[0036] In addition, the front-rear direction of the vehicle body as defined in the embodiments of this application refers to the front-rear direction of the vehicle's forward direction during driving; the left-right direction of the vehicle body as defined refers to the left-right direction of the vehicle's forward direction during driving; and the up-down direction of the vehicle body as defined refers to the up-down direction of the vehicle's forward direction during driving.

[0037] It should be noted that in existing technologies, the engine compartment cover, i.e., the tailgate, of rear-engine vehicles is structurally composed of an inner panel and an outer panel with their edges interlocked to form a double-layer panel structure. The inner panel features U-shaped ribs arranged by welding or integral stamping to increase rigidity. Considering the installation requirements of the glass window, the inner panel, based on these ribs, generally presents a U-shaped structure, serving as the tailgate's frame. The outer panel has openings in the corresponding middle area of ​​the inner panel to install a transparent glass panel. The drawback of this tailgate structure is that the glass window area is relatively small, and the area through which the engine compartment can be directly seen is very limited, thus falling far short of the expected effect of complete visibility into the engine compartment. Furthermore, the complex rib structure on the inner panel makes it difficult to achieve lightweight specifications for the tailgate.

[0038] Please refer to the following: Figures 1 to 8 The rear tailgate frame provided in this application is described below. The rear tailgate frame includes a ring beam 10, two longitudinal beams 20, and a middle cross beam 40. The ring beam 10 forms a closed loop along the edge contour of the engine compartment and has a front beam section 101 and a rear beam section 102 that are opposite each other in the front-rear direction of the vehicle body, and two side beam sections 103 that are opposite each other in the width direction of the vehicle body. The two longitudinal beams 20 are spaced apart in the ring beam 10 in the width direction of the vehicle body. The front ends of the two longitudinal beams 20 are fixedly connected to the front beam section 101 and connected to the vehicle body frame through the tailgate hinge 30. The middle cross beam 40 is connected between the two longitudinal beams 20 and a latch mounting plate 50 is connected between it and the rear beam section 102. The front beam section 101, the two longitudinal beams 20, and the middle cross beam 40 together form a viewing window 200. A trim panel mounting plate 60 is connected between the longitudinal beams 20 and the side beam sections 103 on the same side as the viewing window 200.

[0039] It should be explained that the rear tailgate frame provided in this embodiment replaces the function of the inner panel in the traditional rear tailgate structure. Therefore, the rear tailgate assembly can be formed by assembling the transparent panel and tailgate trim panel on the rear tailgate frame as the mounting base. The rear tailgate frame is different from the traditional inner panel structure. Instead, it is a frame structure composed only of the ring beam 10, longitudinal beam 20 and middle cross beam 40. Therefore, it has a significant advantage in terms of lightweight performance. In addition, the traditional inner panel needs to achieve lightweight by opening weight reduction holes, but opening weight reduction holes often causes a loss of rigidity. The frame structure adopted in this application can ensure sufficient rigidity. The transparent panel and tailgate trim panel installed on the rear tailgate frame mainly serve the functions of transparency and surface decoration.

[0040] In this embodiment, the ring beam 10, longitudinal beam 20, and central transverse beam 40 are all formed using extruded aluminum profiles. Specifically, they can be rectangular tube beams, square tube beams, or channel beams. Of course, considering structural stiffness, beams with closed cross sections, such as rectangular tube beams and square tube beams, are preferred. The latch mounting plate 50 and the decorative panel mounting plate 60 can be made of stamped plates, thus balancing lightweight performance and structural stiffness.

[0041] It should be noted that in this embodiment, the entire area formed between the two longitudinal beams 20 serves as the mounting surface for the transparent panel. Except for a small portion of this area occupied by the locking mounting plate 50 between the middle crossbeam 40 and the rear beam segment 102, the majority of this space serves as the transparent window 200. This transparent window 200 allows for a view of most or even all of the engine compartment interior, thus achieving true visualization of the engine compartment interior. The area excluding the transparent panel corresponds to the position between the longitudinal beams 20 and the side beam segment 103. This area is secured to the tailgate trim panel using the trim panel mounting plate 60, thereby creating a spliced ​​structure on the outer surface of the rear tailgate assembly with a transparent panel in the middle and tailgate trim panels on both sides.

[0042] Compared with the prior art, the rear tailgate frame provided in this application uses a ring beam 10, two longitudinal beams 20 and a middle cross beam 40 to replace the traditional rear tailgate inner panel. The two longitudinal beams 20 are fixed inside the ring beam 10 and can form a force transmission path along the front and rear directions of the vehicle body. The middle cross beam 40 is supported between the two longitudinal beams 20 along the width direction of the vehicle body and can form a force transmission path in the width direction of the vehicle body. The trim panel mounting plate 60 provides the rear tailgate trim panel mounting point and can also form a force transmission path between the longitudinal beams 20 and the side beam section 103. The latch mounting plate 50 provides the tailgate latch mounting point and can also form a force transmission path between the middle cross beam 40 and the rear beam section 102. This not only ensures the rigidity performance of the overall structure of the rear tailgate in the front and rear and width directions of the vehicle body, but also saves a lot of reinforcing components, which is conducive to improving the lightweight performance of the rear tailgate assembly.

[0043] The front end of the longitudinal beam 20 serves as both a force transmission path along the front-rear direction of the vehicle body and a force transmission path constructed in the width direction of the vehicle body based on the trim panel mounting plate 60. Therefore, connecting the front ends of the two longitudinal beams 20 to the vehicle body frame through the tailgate hinge 30 helps to improve the connection strength between the tailgate frame and the vehicle body frame, thereby improving the stability of the tailgate opening and closing movement.

[0044] By using two longitudinal beams 20 in conjunction with the front beam section 101 and the middle cross beam 40, a large-area viewing window 200 can be formed inside the ring beam 10. Compared with the traditional structural form, it can not only greatly increase the area of ​​the viewing area and truly realize the complete visualization of the cabin interior, but also has a simple structure. It can ensure the rigidity of the viewing window 200 area without the need for additional reinforcing components, which is conducive to further promoting the achievement of lightweight indicators.

[0045] In this embodiment, the longitudinal beam 20 and the ring beam 10 can be connected by welding or riveting, with MIG welding (metal inert gas welding) being the preferred method. The decorative panel mounting plate 60 and the latch mounting plate 50 can also be fixed by welding or riveting, and no specific limitation is made here.

[0046] In some embodiments, the ring beam 10 may be adopted as follows: Figure 2 and Figure 3 The structure is shown. The ring beam 10 includes a front crossbeam 11 and a curved beam 12; the front crossbeam 11 is provided as a front beam section 101 at the front end of the engine compartment; one end of the curved beam 12 is fixedly connected to one end of the front crossbeam 11, and the other end extends along the edge contour of the engine compartment and is fixedly connected to the other end of the front crossbeam 11; wherein, the part of the curved beam 12 opposite to the front crossbeam 11 forms a rear beam section 102, and the parts of the curved beam 12 on both sides of the rear beam section 102 respectively form side beam sections 103.

[0047] The ring beam 10 is composed of two beams connected together. The front crossbeam 11 extends along the width of the vehicle body and is located at the front end of the engine compartment, providing a force transmission path in the width of the vehicle body. The curved beam 12 is formed into a C-shaped structure after being bent twice in the same direction. As a result, the front crossbeam 11 and the curved beam 12 only have two connection points to form a complete closed ring beam 10 structure. This not only helps to reduce the number of connection points and promote the improvement of the overall structural strength, but also helps to reduce the cumulative error of the connection, thereby improving the overall assembly accuracy and reducing the production cycle time.

[0048] Specifically, the curved beam 12 is integrally formed by extrusion molding of a rectangular tube beam with equal cross-section. Its two ends are respectively abutted against the two ends of the front cross beam 11 and welded and fixed. Thus, the entire ring beam 10 has only two welding positions, which not only helps to improve the overall structural rigidity, but also helps to reduce the number of connection points and achieve the purpose of weight reduction.

[0049] Specifically, such as Figure 3 As shown, in this embodiment, the two ends of the rear beam segment 102 are respectively connected to the corresponding side beam segment 103 through the arc segment 104, and the rear ends of the two longitudinal beams 20 are respectively fixed to the two arc segments 104.

[0050] The use of an arc segment 104 between the side beam segment 103 and the rear beam segment 102 facilitates the overall forming of the curved beam 12 and avoids stress concentration. Fixing the rear end of the longitudinal beam 20 to the arc segment 104 maximizes the spacing between the two longitudinal beams 20 in the vehicle width direction, thereby improving the field of view of the perspective window 200.

[0051] Considering that the engine compartment of a rear-engine vehicle is usually narrowed from front to back, and the tailgate frame should match the outline of the engine compartment, the distance between the two side beam segments 103 gradually decreases from front to back. On this basis, the connection between the rear end of the longitudinal beam 20 and the arc segment 104 can maximize the perspective window 200 while forming an approximately triangular stable structure on both sides of the perspective window 200, thereby improving the overall structural rigidity.

[0052] It should be noted that you should refer to [link / reference]. Figure 2 and Figure 3 Multiple trim panel mounting plates 60 are connected between the aforementioned longitudinal beam 20 and the side beam segment 103 on the same side, and the trim panel mounting plates 60 are distributed at intervals along the front and rear direction of the vehicle body.

[0053] By arranging multiple trim panel mounting plates 60 along the front and rear directions of the vehicle body, the longitudinal beam 20 and the side beam segment 103 can effectively transmit force and distribute loads along the width direction of the vehicle body. This not only improves the overall structural rigidity but also ensures that the tailgate trim panel has sufficient and uniform mounting points, thereby improving the installation stability of the tailgate trim panel on the rear tailgate frame.

[0054] Specifically, each of the aforementioned trim panel mounting plates 60 can be constructed as an I-shaped force transmission structure along the width direction of the vehicle body between the longitudinal beam 20 and the side beam segment 103. Multiple trim panel mounting plates 60 construct a trapezoidal overall force transmission path on the side of the perspective window 200, thereby greatly improving the overall structural rigidity of the rear tailgate frame.

[0055] like Figure 2 As shown, the latch mounting plate 50 constructs an I-shaped force transmission structure between the middle crossbeam 40 and the rear beam section 102 to transmit force along the front-rear direction of the vehicle body, thereby further improving the structural rigidity of the rear tailgate frame in the front-rear direction of the vehicle body.

[0056] Optionally, see Figure 4In this embodiment, the trim panel mounting plate 60 has overlapping edges 61 on both sides along the width direction of the vehicle body. The overlapping edges 61 on both sides are respectively overlapped and fixed to the side beam section 103 and the longitudinal beam 20. The trim panel mounting plate 60 has reinforcing folded edges 62 on both sides along the front and rear directions of the vehicle body.

[0057] Considering that the rear-mounted engine compartment has a structure that is wider at the front and narrower at the rear, the space between the longitudinal beam 20 and the side beam segment 103 gradually narrows from front to rear. Therefore, the trim panel mounting plate 60 is provided with an overlapping edge 61 that overlaps the longitudinal beam 20 and the side beam segment 103. The overlapping edge 61 is used to fix the trim panel mounting plate 60 to the longitudinal beam 20 and the side beam segment 103. On this basis, the front and rear sides of the trim panel mounting plate 60 are provided with reinforcing folded edges 62, which can improve the support stiffness of the trim panel mounting plate 60 in the width direction of the vehicle body, thereby improving the structural stiffness of the overall structure in the width direction of the vehicle body.

[0058] For example, see Figure 3 and Figure 5 Since the longitudinal beam 20 and the side beam segment 103 have a large distance between them in the area near the front beam segment 101, the trim panel mounting plate 60 in this area can be directly fixed to the opposite side walls of the longitudinal beam 20 and the side beam segment 103 without the need for the overlapping edge 61. Of course, in order to ensure sufficient contact area and overall structural rigidity, the trim panel mounting plate 60 can adopt a structure in which its edge forms a continuous folded edge 63.

[0059] In some embodiments, please refer to Figures 4 to 7 The aforementioned decorative panel mounting plate 60 and latch mounting plate 50 are each provided with a number of recessed or raised mounting surfaces 64, and each mounting surface 64 is provided with mounting holes 65 suitable for fasteners to be inserted.

[0060] The recessed or raised mounting surface 64 ensures the stability of the tailgate trim panel on the trim panel mounting plate 60. At the same time, the mounting surface 64 creates an uneven reinforcing structure on the surface of the trim panel mounting plate 60, which improves the structural strength without increasing the weight compared to a flat trim panel mounting plate 60.

[0061] To further improve structural strength, such as Figure 4 and Figure 7 As shown, both the trim panel mounting plate 60 and the latch mounting plate 50 are equipped with a number of reinforcing ribs 66. The arrangement of these reinforcing ribs 66 improves the structural strength of the trim panel mounting plate 60 and the latch mounting plate 50, thereby enhancing the overall structural rigidity of the tailgate frame. Specifically, these reinforcing ribs 66 can be integrally stamped grooves or protrusions, thus preventing an increase in the weight of the trim panel mounting plate 60 and the latch mounting plate 50, thereby ensuring structural rigidity while also achieving lightweight performance.

[0062] Specifically, the reinforcing ribs 66 can be arranged as multiple intersecting or non-intersecting strips horizontally, vertically, or diagonally on the side of the mounting surface 64. Additionally, as... Figure 6 As shown, considering that the distance between the longitudinal beam 20 and the side beam segment 103 near the rear beam segment 102 is small, the area of ​​the decorative panel mounting plate 60 at this position is also small. Therefore, the decorative panel mounting plate 60 provided here can meet the rigidity requirements based on the reinforcing structure formed by the mounting platform 64 mentioned above. Therefore, it is not necessary to provide reinforcing ribs 66.

[0063] For some possible implementations, please refer to [link / reference]. Figure 1 and Figure 8 The tailgate hinge 30 includes a fixed arm 31 and a connecting seat 32; one end of the fixed arm 31 is fixedly connected to the front end of the longitudinal beam 20, and the other end is bent and extended to the front side of the front beam section 101; the connecting seat 32 is fixedly connected to the vehicle frame and is hinged to the extended end of the fixed arm 31.

[0064] The function of the fixed arm 31 is to bypass the front beam section 101 and fix it to the front end of the longitudinal beam 20, thereby improving the reliability and stability of the connection with the body frame by means of the comprehensive force transmission path obtained by the longitudinal beam 20 in the front-rear direction of the vehicle body and in the width direction of the vehicle body based on the trim panel mounting plate 60; after the connecting seat 32 is fixed to the body frame, it is hinged to the end of the fixed arm 31 before the front beam section 101 is straightened. The structure is simple and stable, and can avoid the cumulative error problem caused by multiple connecting parts, thereby improving the assembly position accuracy.

[0065] Specifically, the aforementioned fixed arm 31 can be made of round or rectangular tube to ensure its own structural rigidity. In order to avoid the front beam section 101, the fixed arm 31 can be bent and extended in an arc shape to reach the position before the front beam section 101. The connecting seat 32 can be made of stamped seat to form a U-shaped groove suitable for the extension end of the fixed arm 31 to enter. Then, a reliable hinge is achieved by passing a pin through the U-shaped groove and the part where the fixed arm 31 enters the U-shaped groove. This can ensure the connection strength between the rear tailgate frame and the body frame, and also ensure the connection position accuracy of the rear tailgate frame on the body frame.

[0066] Based on the aforementioned rear tailgate frame structure, please refer to Figure 3 and Figure 8 The front beam section 101 is located between the two longitudinal beams 20. The two longitudinal beams 20 and the rear beam section 102 together form the mounting frame 100. The upper surface of the mounting frame 100 is provided with a ring of adhesive strip 70. The mounting frame 100 and the transparent cover plate 80 are bonded and fixed by adhesive 700 continuously applied to the side of the adhesive strip 70.

[0067] The aforementioned transparent cover plate 80 can be made of single-layer tempered glass or laminated tempered glass to ensure its structural strength. The adhesive 700 is glass glue. The transparent cover plate 80 can be a complete structure that completely covers the mounting frame 100 and is bonded and fixed to the upper surface of the mounting frame 100 by the adhesive 700. At the same time, in order to prevent the adhesive 700 from flowing out, a ring of adhesive strip 70 is provided on the upper surface of the mounting frame 100 to block and constrain the adhesive 700, thereby ensuring the continuity and reliability of the adhesive 700 bonding, and thus improving the installation stability of the transparent cover plate 80.

[0068] As a specific embodiment of the aforementioned rear tailgate frame, the front crossbeam 11, curved beam 12, longitudinal beam 20, and middle crossbeam 40 are all made of rectangular aluminum tubing with a width of 25-35mm, a height of 15-25mm, and a wall thickness of 0.8-1.2mm. The two ends of the curved beam 12 are fixed to the front crossbeam 11, the front end of the longitudinal beam 20 is fixed to the front crossbeam 11, the rear end of the longitudinal beam 20 is fixed to the curved beam 12, and the two ends of the middle crossbeam 40 are fixed to the longitudinal beam 20 by MIG welding. The trim panel near the front crossbeam 11 is installed... The plate 60 is directly embedded between the longitudinal beam 20 and the side beam section 103 and fixed by MIG welding. The remaining trim panel mounting plates 60 are attached to the lower surfaces of the longitudinal beam 20 and the side beam section 103 by overlapping edges 61 and then riveted. The latch mounting plate 50 is embedded between the middle cross beam 40 and the rear beam section 102 and abuts against them, and is then fixed by MIG welding. The two tailgate hinges 30 are bolted to the front end of the longitudinal beam 20 for easy disassembly, replacement and maintenance.

[0069] The transparent cover 80 is bonded and fixed to the mounting frame 100 by a uniformly applied ring of adhesive 700. At the same time, the adhesive strip 70 is used to ensure that the assembly gap between the transparent cover 80 and the mounting frame 100 is uniform and consistent, and to prevent the adhesive 700 from being lost during assembly. The tailgate trim panel is connected and fixed to the mounting holes 65 on the trim panel mounting plate 60 by fasteners such as bolts. The tailgate latch is connected and fixed to the latch mounting plate 50 by fasteners and the mounting holes 65 on the latch mounting plate 50.

[0070] Based on the same inventive concept, please combine Figures 1 to 8 It is understood that this application also provides a vehicle including the aforementioned rear tailgate frame.

[0071] Compared with the prior art, the vehicle provided in this application adopts the above-mentioned rear tailgate frame, which can replace the traditional rear tailgate inner panel with the rear tailgate frame composed of ring beam 10, two longitudinal beams 20 and middle cross beam 40. The two longitudinal beams 20 are fixed inside the ring beam 10 and can form a force transmission path along the front and rear direction of the vehicle body. The middle cross beam 40 is supported between the two longitudinal beams 20 along the width direction of the vehicle body and can form a force transmission path in the width direction of the vehicle body. The trim panel mounting plate 60 provides the rear tailgate trim panel mounting point and can also form a force transmission path between the longitudinal beams 20 and the side beam section 103. The latch mounting plate 50 provides the tailgate latch mounting point and can also form a force transmission path between the middle cross beam 40 and the rear beam section 102. This can save a lot of reinforcing components and take into account the overall structural rigidity and lightweight indicators of the rear tailgate. Based on this, by using two longitudinal beams 20 in conjunction with the front beam section 101 and the middle cross beam 40, a large-area perspective window 200 can be formed inside the ring beam 10. Compared with the traditional structural form, this can not only greatly increase the area of ​​the perspective area, but also truly realize the complete visualization of the cabin interior.

[0072] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rear tailgate frame, characterized in that, include; The ring beam forms a closed loop along the edge contour of the engine compartment, and has a front beam section and a rear beam section that are opposite each other in the front-rear direction of the vehicle body, as well as two side beam sections that are opposite each other in the width direction of the vehicle body. Two longitudinal beams are spaced apart within the ring beam along the width of the vehicle body. The front ends of both longitudinal beams are fixedly connected to the front beam section and connected to the vehicle body frame via the tailgate hinge. The middle crossbeam connects the two longitudinal beams and is connected to the rear beam section by a locking mounting plate; The front beam segment, the two longitudinal beams, and the middle cross beam together form a viewing window, and a decorative panel mounting plate is connected between the longitudinal beam and the side beam segment located on the same side of the viewing window.

2. The rear tailgate frame as described in claim 1, characterized in that, The ring beam includes: The front crossbeam, as the front beam section, is located at the front end of the engine compartment; The curved beam has one end fixedly connected to one end of the front crossbeam, and the other end extends along the edge contour of the engine compartment and is fixedly connected to the other end of the front crossbeam. The portion of the curved beam opposite to the front crossbeam forms the rear beam segment, and the portions of the curved beam located on both sides of the rear beam segment respectively form the side beam segments.

3. The rear tailgate frame as described in claim 2, characterized in that, The two ends of the rear beam segment are respectively connected to the corresponding side beam segment through arc segments, and the rear ends of the two longitudinal beams are respectively fixed to the two arc segments.

4. The rear tailgate frame as described in claim 1, characterized in that, Multiple trim panel mounting plates are connected between the longitudinal beam and the side beam segment on the same side, and the trim panel mounting plates are spaced apart along the front-rear direction of the vehicle body.

5. The rear tailgate frame as described in claim 1, characterized in that, The trim panel mounting plate has overlapping edges on both sides along the width direction of the vehicle body. The overlapping edges on both sides are respectively overlapped and fixed to the side beam segment and the longitudinal beam. The trim panel mounting plate also has reinforcing folded edges on both sides along the front and rear directions of the vehicle body.

6. The rear tailgate frame as described in claim 1, characterized in that, Both the decorative panel mounting plate and the latch mounting plate have several recessed or raised mounting surfaces, and each mounting surface is provided with mounting holes suitable for fasteners.

7. The rear tailgate frame as described in claim 1, characterized in that, Both the decorative panel mounting plate and the latch mounting plate have several reinforcing ribs.

8. The rear tailgate frame as described in claim 1, characterized in that, The tailgate hinge includes: A fixed arm, one end of which is fixedly connected to the front end of the longitudinal beam, and the other end is bent and extended to the front side of the front beam section; The connecting seat is fixedly connected to the vehicle frame and hinged to the extension end of the fixed arm.

9. The rear tailgate frame as described in any one of claims 1-8, characterized in that, The front beam section is located between the two longitudinal beams, and the two longitudinal beams and the rear beam section together form an installation frame. The upper surface of the installation frame is provided with a ring of adhesive strips. The installation frame and the transparent cover plate are bonded and fixed by continuously applying adhesive to the side of the adhesive strips.

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

Images