Vehicle rear side panel assembly, vehicle rear side panel system and vehicle

Abstract

The present application relates to a vehicle rear side panel assembly, a vehicle rear side panel system, and a vehicle, which includes: a C-pillar upper side rail; a D-pillar assembly, wherein the D-pillar assembly is connected to the C-pillar upper side rail, a rear longitudinal beam is fixed to the end of the D-pillar assembly away from the C-pillar upper side rail, the rear longitudinal beam extends along the X-direction of the vehicle, and a shock absorber fixing member is installed on the rear longitudinal beam; a reinforcing beam assembly, wherein one end of the reinforcing beam assembly is fixed to the side of the D-pillar assembly near the C-pillar upper side rail and the other end is fixed to the rear longitudinal beam, the reinforcing beam assembly is connected to the shock absorber fixing member, and is used to strengthen the rigidity of the shock absorber mounting point in the shock absorber fixing member. By providing the reinforcing beam assembly, the overall rigidity of a vehicle without a C-pillar is increased. The reinforcing beam assembly is connected to the shock absorber fixing member and can also strengthen the rigidity around the shock absorber mounting point, preventing the mounting point from loosening or being damaged due to excessive force on the shock absorber. When the vehicle is hit, the impact force on the C-pillar upper side rail can also be transmitted to the reinforcing beam assembly, thereby enhancing overall safety.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle structure design, and in particular to a vehicle rear side panel assembly, a vehicle rear side panel system and a vehicle. Background Art

[0002] Currently, some car models choose to remove the C-pillar of the vehicle to achieve a larger light-transmitting area in the traditional rear triangular window area, enhance passenger comfort and meet passengers' vision needs.

[0003] However, removing the C-pillar of the vehicle may affect the overall supporting strength of the vehicle and reduce the rigidity of the vehicle. Summary of the Invention

[0004] The present application provides a vehicle rear side panel assembly, a vehicle rear side panel system and a vehicle, which can solve the technical problem in the related art that after the C-pillar of the vehicle is removed, the overall support strength of the vehicle may be affected and the rigidity of the vehicle may be reduced.

[0005] In a first aspect, an embodiment of the present application provides a vehicle rear side panel assembly, comprising: a C-pillar upper side beam; a D-pillar assembly, wherein the D-pillar assembly is connected to the C-pillar upper side beam, a rear longitudinal beam is fixed to one end of the D-pillar assembly away from the C-pillar upper side beam, the rear longitudinal beam extends along the X-direction of the vehicle, and a shock absorber fixing is installed on the rear longitudinal beam; a reinforcing beam assembly, wherein one end of the reinforcing beam assembly is fixed to a side of the D-pillar assembly close to the C-pillar upper side beam, and the other end is fixed to the rear longitudinal beam, the reinforcing beam assembly is connected to the shock absorber fixing member, and is used to strengthen the rigidity of the shock absorber mounting point in the shock absorber fixing member.

[0006] In combination with the first aspect, in one embodiment, the reinforcing beam assembly includes: a first reinforcing beam, wherein both ends of the first reinforcing beam are respectively fixed to the D-pillar assembly and the rear longitudinal beam; a second reinforcing beam, wherein the second reinforcing beam is spaced apart from the first reinforcing beam, and both ends of the second reinforcing beam are respectively fixed to the D-pillar assembly and the rear longitudinal beam, and the second reinforcing beam and the first reinforcing beam are connected by a reinforcing cross beam, so that the first reinforcing beam, the second reinforcing beam and the reinforcing cross beam form an "H"-shaped beam, and the reinforcing cross beam is connected to the shock absorber fixing member.

[0007] In combination with the first aspect, in one embodiment, the D-pillar assembly includes an upper section, the upper section is connected to the C-pillar upper side beam, and a middle section is fixed to one end of the upper section away from the C-pillar upper side beam; the two ends of the first reinforcing beam are respectively fixed to the upper section and the rear longitudinal beam, and the two ends of the second reinforcing beam are respectively fixed to the middle section and the rear longitudinal beam.

[0008] In combination with the first aspect, in one embodiment, the vehicle rear side panel assembly further includes a rear pillar connecting beam, one end of the rear pillar connecting beam is mounted on the D-pillar assembly, and the other end is obliquely extended and fixed to the pedal beam of the rear longitudinal beam, and the rear pillar connecting beam is at least partially fixed to the first reinforcing beam and forms a first reinforcing cavity with the first reinforcing beam.

[0009] In combination with the first aspect, in one embodiment, the vehicle rear side panel assembly further includes a connecting outer panel, the connecting outer panel is fixed to the second reinforcing beam, and the connecting outer panel and the second reinforcing beam cooperate to form a second reinforcing cavity.

[0010] In combination with the first aspect, in one embodiment, the C-pillar upper side beam has a first cavity; the D-pillar assembly includes an upper segment, the upper segment is connected to the C-pillar upper side beam, and the upper segment has a second cavity connected to the first cavity; skeleton reinforcement parts are installed in the first cavity and the second cavity, and the outer periphery of the skeleton reinforcement parts is respectively adhered to the inner wall of the first cavity and the second cavity.

[0011] In combination with the first aspect, in one embodiment, the skeleton reinforcement member includes a skeleton frame, which extends along the extension direction of the C-pillar upper side beam, and has a skeleton reinforcement cavity; a plurality of sheet metal reinforcement members are fixed at intervals along the extension direction of the skeleton frame, and the plurality of sheet metal reinforcement members divide the reinforcement cavity into a plurality of skeleton reinforcement chambers.

[0012] In combination with the first aspect, in one embodiment, the C-pillar upper side beam and the rear longitudinal beam enclose a rear door opening area and a rear triangular window area, and the rear door opening area is connected to the rear triangular window area.

[0013] In a second aspect, an embodiment of the present application provides a vehicle rear side panel system, which includes the above-mentioned vehicle rear side panel assembly, and the vehicle rear side panel system includes: a rear pillar inner panel, the rear pillar inner panel is connected to the rear longitudinal beam, and the rear pillar inner panel is installed at the connection between the rear longitudinal beam and the first reinforcing beam; a rear seat cross beam, the rear seat cross beam is connected to the rear longitudinal beam, and the rear seat cross beam is installed at the connection between the rear longitudinal beam and the second reinforcing beam.

[0014] In a second aspect, an embodiment of the present application provides a vehicle comprising the above-mentioned vehicle rear side panel assembly.

[0015] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0016] By arranging a reinforcing beam assembly between the D-pillar assembly and the rear longitudinal beam, the overall rigidity of a vehicle without a C-pillar can be increased. The reinforcing beam assembly is connected to the shock absorber fixings, and can also enhance the static rigidity around the shock absorber mounting point, preventing the mounting point from loosening or being damaged due to excessive force on the shock absorber. The upper side beam of the C-pillar is connected to the D-pillar assembly. When the vehicle is hit, the impact force on the upper side beam of the C-pillar can also be transmitted to the reinforcing beam assembly through the D-pillar, thereby enhancing overall safety. This solves the technical problem in the related art that after the C-pillar of the vehicle is removed, the overall support strength of the vehicle may be affected and the rigidity of the vehicle may be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a vehicle rear side panel assembly provided in an embodiment of the present application;

[0019] Figure 2 A schematic side view of the rear side panel assembly of a vehicle provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the partial structure of the reinforcement beam assembly provided in an embodiment of the present application;

[0021] Figure 4 A schematic structural diagram of a force transmission path in a vehicle rear side panel assembly provided in an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the structure of the rear door opening area and the rear triangular window area provided in an embodiment of the present application;

[0023] Figure 6 This is a structural diagram of the skeleton reinforcement provided in an embodiment of the present application installed in the first cavity and the second cavity.

[0024] In the picture:

[0025] 1. C-pillar upper side member; 11. First cavity;

[0026] 2. D-pillar assembly; 21. upper segment; 211. second cavity; 22. middle segment; 23. lower segment;

[0027] 3. Rear longitudinal beam; 31. Pedal beam;

[0028] 4. Shock absorber fixings;

[0029] 5. Reinforcement beam assembly; 51. First reinforcement beam; 52. Second reinforcement beam; 53. Reinforcement cross beam; 54. Center section;

[0030] 6. Rear pillar connecting beam;

[0031] 71. Skeleton frame; 711. Skeleton reinforcement cavity; 72. Sheet metal reinforcement;

[0032] 81. Rear door opening area; 82. Rear triangular window area;

[0033] 9. Rear pillar inner plate;

[0034] 10. Rear seat crossbeam. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] An embodiment of the present application provides a vehicle rear side panel assembly, which can solve the technical problem in the related art that after the C-pillar of the vehicle is removed, the overall supporting strength of the vehicle may be affected and the rigidity of the vehicle may be reduced.

[0037] See also Figure 1 As shown, a vehicle rear side panel assembly provided in an embodiment of the present application may include: a C-pillar upper side member 1; a D-pillar assembly 2, wherein the D-pillar assembly 2 is connected to the C-pillar upper side member 1, a rear longitudinal beam 3 is fixed to one end of the D-pillar assembly 2 away from the C-pillar upper side member 1, the rear longitudinal beam 3 extends along the X-direction of the vehicle, and a shock absorber fixing member 4 is installed on the rear longitudinal beam 3; a reinforcing beam assembly 5, wherein one end of the reinforcing beam assembly 5 is fixed to a side of the D-pillar assembly 2 close to the C-pillar upper side member 1 and the other end is fixed to the rear longitudinal beam 3, the reinforcing beam assembly 5 is connected to the shock absorber fixing member 4 and is used to strengthen the rigidity of the shock absorber mounting point in the shock absorber fixing member 4. The shock absorber fixing member 4 may refer to a chassis shock absorber mounting plate, and the reinforcing beam assembly 5 may be fixed to the D-pillar assembly 2 and the rear longitudinal beam 3 by welding or other fixing methods other than welding, such as bolting. It should be understood that in the direction facing the front of the vehicle, the left and right sides of the vehicle should be symmetrically provided with structures such as the reinforcing beam assembly 5 of the embodiment of the present application.

[0038] The embodiment of the present application disposes a reinforcement beam assembly 5 between the D-pillar assembly 2 and the rear longitudinal beam 3. The reinforcement beam assembly 5 provides a certain degree of support between the D-pillar assembly 2 and the rear longitudinal beam 3. Furthermore, the reinforcement beam assembly 5 can be welded to the D-pillar assembly 2 and the rear longitudinal beam 3, respectively, enabling force transmission between the D-pillar assembly 2 and the rear longitudinal beam 3 through the reinforcement beam assembly 5, thereby increasing the overall rigidity of the C-pillar-less vehicle. Furthermore, the reinforcement beam assembly 5 is connected to the shock absorber mounting member 4, further enhancing the rigidity around the shock absorber mounting point, preventing loosening or damage to the mounting point due to excessive shock absorber force. This allows the C-pillar-less vehicle to maintain a satisfactory viewing angle for the occupants while also enhancing vehicle stability. During driving, the significant loads transmitted to the vehicle body from the road surface and tires are effectively dispersed and transferred to the vehicle's rear side panel frame, preventing stress concentration and cracking in the shock absorber mounting member 4. Furthermore, the C-pillar upper side beam 1 is connected to the D-pillar assembly 2. When the vehicle is hit, the impact force received by the C-pillar upper side beam 1 can also be transmitted to the reinforcing beam assembly 5 through the D-pillar, thereby realizing the force transmission of the vehicle during the collision, enhancing the overall safety, and solving the technical problem in the related technology that the removal of the C-pillar of the vehicle may affect the overall supporting strength of the vehicle and reduce the rigidity of the vehicle.

[0039] In some optional embodiments, the reinforcing beam assembly 5 may include: a first reinforcing beam 51, the two ends of the first reinforcing beam 51 are respectively fixed to the D-pillar assembly 2 and the rear longitudinal beam 3; a second reinforcing beam 52, the second reinforcing beam 52 is spaced apart from the first reinforcing beam 51, and the two ends of the second reinforcing beam 52 are respectively fixed to the D-pillar assembly 2 and the rear longitudinal beam 3, the second reinforcing beam 52 and the first reinforcing beam 51 are connected by a reinforcing cross beam 53, so that the first reinforcing beam 51, the second reinforcing beam 52 and the reinforcing cross beam 53 form an "H"-shaped beam, and the reinforcing cross beam 53 is connected to the shock absorber fixing member 4. In the embodiment of the present application, the first reinforcing beam 51 and the second reinforcing beam 52 can be arranged at intervals along the X-direction of the vehicle, and the two beams are respectively used to connect the D-pillar assembly 2 and the rear longitudinal beam 3. In addition to further enhancing the support of the reinforcing beam assembly 5, the force transmission between the D-pillar assembly 2 and the rear longitudinal beam 3 can also be made more efficient. In addition to improving the vehicle's collision resistance and overall safety performance, the provision of the reinforcing cross beam 53 also enables some structures in the reinforcing beam assembly 5 to be targetedly connected to the shock absorber fixing part 4, thereby improving the stability and durability of the shock absorber.

[0040] See also Figure 3As shown, further, for comprehensive consideration of the production process and support strength, the first reinforcing beam 51 and the second reinforcing beam 52 can be divided into multiple sections along their respective length directions. In the embodiment of the present application, the first reinforcing beam 51 is divided into four sections for manufacturing, and the second reinforcing beam 52 is also divided into four sections for manufacturing, so as to reduce the manufacturing difficulty of each section, and enable the manufactured sections to be more tightly connected with other structures on the vehicle when arranged on the vehicle, thereby enhancing the connection stability, reducing the vibration and noise of the vehicle during driving, and improving the ride comfort; at the same time, it also helps to improve the collision resistance and overall safety of the vehicle. Preferably, the section of the first reinforcing beam 51 adjacent to the reinforcing crossbeam 53, the section of the second reinforcing beam 52 adjacent to the reinforcing crossbeam 53, and the reinforcing crossbeam 53 can be integrally formed. This section can be considered the central section 54. The integrally formed central section 54 can have greater strength and can more effectively withstand and distribute loads from all directions of the vehicle. In addition to the reinforcing crossbeam 53 being secured to the shock absorber mounting 4, the sections of the first reinforcing beam 51 in the central section 54 and the sections of the first reinforcing beam 51 can also be secured to the shock absorber mounting 4. This increases the contact and securing area between the reinforcing beam assembly 5 and the shock absorber mounting 4, allowing the reinforcing beam assembly 5 to exert a greater force on the shock absorber mounting 4, thereby improving the stability and durability of the shock absorber. Furthermore, the top surface of the reinforcing crossbeam 53 along the vehicle height direction can be flush with the top surface of the shock absorber mounting 4, so that the connection surface between the reinforcing beam assembly 5 and the shock absorber mounting 4 is more concentrated, making the connection more secure and reliable, and improving the stability and durability of the entire structure. In some other embodiments, the first reinforcement beam 51 , the second reinforcement beam 52 and the reinforcement cross beam 53 may also be integrally formed.

[0041] See also Figure 2 As shown, in some optional embodiments, the D-pillar assembly 2 includes an upper segment 21, the upper segment 21 being connected to the C-pillar upper side rail 1, and a middle segment 22 being fixed to the end of the upper segment 21 away from the C-pillar upper side rail 1; the two ends of the first reinforcing beam 51 are respectively fixed to the upper segment 21 and the rear longitudinal beam 3, and the two ends of the second reinforcing beam 52 are respectively fixed to the middle segment 22 and the rear longitudinal beam 3. In other words, the first reinforcing beam 51 and the second reinforcing beam 52 are respectively fixed to different segments in the D-pillar assembly 2. By dispersing and strengthening the connection points, the connection strength of the vehicle body structure can be enhanced, thereby improving the vehicle's collision resistance. Preferably, the second reinforcing beam 52 is fixed to the side of the middle segment 22 close to the upper segment 21, and the first reinforcing beam 51 is fixed to the side of the upper segment 21 close to the C-pillar upper side rail 1. Furthermore, a lower segment 23 may be fixed to one end of the middle segment 22 away from the upper segment 21 , and one end of the lower segment 23 away from the middle segment 22 is connected to the rear longitudinal beam 3 .

[0042] In some optional embodiments, the vehicle rear side panel assembly further includes a rear pillar connecting beam 6, one end of which is mounted to the D-pillar assembly 2 and the other end of which extends obliquely and is fixed to the pedal beam 31 of the rear longitudinal beam 3. The rear pillar connecting beam 6 is at least partially fixed to the first reinforcement beam 51 and forms a first reinforcement cavity with the first reinforcement beam 51. One end of the pillar connecting beam can be welded to the D-pillar assembly 2, while the other end is welded to the pedal beam 31. This increases the force transmission path of the vehicle rear side panel assembly. The angled extension between the pillar connecting beam and the rear longitudinal beam 3 enhances its support performance. The oblique extension better supports loads and impact forces from the vehicle side and further facilitates force transmission between the D-pillar assembly 2 and the rear longitudinal beam 3. Furthermore, welding at least a portion of the pillar connecting beam to the first reinforcement beam 51 to form the first reinforcement cavity helps absorb and disperse impact forces, further protecting passenger safety.

[0043] In some optional embodiments, the vehicle's rear side panel assembly further includes a connecting outer panel secured to the second reinforcing beam 52. The connecting outer panel and the second reinforcing beam 52 cooperate to form a second reinforcing cavity. The connecting outer panel and the second reinforcing beam 52 can also be welded together, creating a second reinforcing cavity that also helps absorb and disperse impact forces, further protecting passenger safety. One end of the connecting outer panel can be welded to the D-pillar assembly 2, while the other end is secured to the fender above the vehicle's rear wheel hub. The pillar connecting beam can also extend a certain length around the fender above the vehicle's rear wheel hub, effectively utilizing the vehicle's structure and space.

[0044] In some optional embodiments, the C-pillar upper side beam 1 has a first cavity 11 therein; the D-pillar assembly 2 includes an upper segment 21, the upper segment 21 being connected to the C-pillar upper side beam 1, and the upper segment 21 having a second cavity 211 in communication with the first cavity 11; a skeleton reinforcement is installed in each of the first cavity 11 and the second cavity 211, and the outer periphery of the skeleton reinforcement is respectively adhered to the inner side walls of the first cavity 11 and the second cavity 211. In the embodiment of the present application, in order to further increase the space inside the vehicle and enhance the riding comfort of the passengers, the cross-sectional size of the C-pillar upper side beam 1 can be reduced. In this case, the sheet metal of the C-pillar upper side beam 1 can be overlapped and welded to the D-pillar assembly 2 to form a tighter connection and mutual support. To reduce the cross-sectional dimensions of the C-pillar upper side rail 1 while also minimizing the impact on the vehicle's rigidity and stability, a skeleton reinforcement is installed within the first cavity 11. The skeleton reinforcement can extend from the first cavity 11 into the second cavity 211, and its circumferential sides are respectively adhered to the inner side walls of the first cavity 11 and the inner side walls of the second cavity 211, thereby enhancing the direct force transmission performance between the C-pillar upper side rail 1 and the upper segment 21, and also achieving vehicle lightweighting. The "H"-shaped reinforcement beam assembly 5 structure in the front and rear side panel assemblies is connected through the C-pillar upper side rail 1 skeleton. In side collision and top pressure conditions, the side collision force is effectively transmitted and supported within the "H"-shaped reinforcement beam assembly 5, significantly improving the structural safety of the side panel assemblies without C-pillars.

[0045] Preferably, the upper segment 21 includes a D-pillar reinforcement plate and a D-pillar inner panel connected to the D-pillar reinforcement plate. The D-pillar reinforcement plate and the D-pillar inner panel enclose a second cavity 211. The outer periphery of the skeleton reinforcement member located within the second cavity 211 is respectively attached to the D-pillar inner panel and the D-pillar reinforcement plate. Separately manufacturing the D-pillar reinforcement plate and the D-pillar inner panel can reduce manufacturing difficulty, and can be welded and secured after completion. The end of the rear pillar connecting beam 6 near the D-pillar assembly 2 can be connected to the D-pillar reinforcement plate, and the end of the first longitudinal beam near the D-pillar assembly 2 can be fixed to the D-pillar inner panel.

[0046] See also Figure 6As shown, in some optional embodiments, the skeleton reinforcement includes a skeleton frame 71, the skeleton frame 71 extends along the extension direction of the C-pillar upper side beam 1, and the skeleton frame 71 has a skeleton reinforcement cavity 711; a plurality of sheet metal reinforcements 72 are fixed at intervals along the extension direction of the skeleton frame 71, and the plurality of sheet metal reinforcements 72 divide the reinforcement cavity into a plurality of skeleton reinforcement chambers. The circumferential sides of the skeleton frame 71 are respectively attached to and fixed to the inner side walls of the first cavity 11 and the inner side walls of the second cavity 211, so that the skeleton frame 71 can respectively support the upper segment 21 and the C-pillar upper side beam 1. The plurality of sheet metal reinforcements 72 fixed along the extension direction of the skeleton frame 71 can enhance the overall rigidity of the skeleton frame 71 and enhance its support for the upper segment 21 and the C-pillar upper side beam 1. The plurality of skeleton reinforcement chambers can be arranged to be interconnected or independent of each other.

[0047] Preferably, the skeleton reinforcement is glued and fixed to the C-pillar upper side beam 1 and the upper segment 21 respectively. In the embodiment of the present application, the skeleton frame 71 is made of PA66-GF35 material, and the material used to glue the skeleton frame 71 to the C-pillar upper side beam 1 and the upper segment 21 is a foam material, which is a modified epoxy resin. The material is foamed after baking in an electrophoresis drying furnace, and the surrounding sheet metal parts are connected to the skeleton. After cooling, the foam material solidifies to form a high-strength foam structure. Compared with traditional metal materials, PA66-GF35 material has a lighter weight. The lightweight design of the vehicle can be achieved, and the use of modified epoxy resin foam material as an adhesive can achieve efficient connection between the skeleton reinforcement and the C-pillar upper side beam 1 and the upper segment 21.

[0048] CAE analysis was used to compare the performance improvement of the rear side panel by the structural reinforcement parts. It was found that this structure, combined with the rear side panel beam structure, significantly improved the top pressure result, which can effectively improve the safety of the side panel skeleton structure.

[0049]

[0050] Preferably, see Figure 5 As shown, the C-pillar upper side member 1 and the rear longitudinal member 3 enclose a rear door opening area 81 and a rear triangular window area 82, and the rear door opening area 81 is connected to the rear triangular window area 82. By connecting the rear door opening area 81 and the rear triangular window area 82, a C-pillar-free structure of the vehicle is realized.

[0051] The present application also provides a vehicle rear side panel system, which may include the vehicle rear side panel assembly described above, and is characterized in that the vehicle rear side panel system further includes: a rear pillar inner panel 9, which is connected to the rear longitudinal beam 3 and installed at the connection between the rear longitudinal beam 3 and the first reinforcement beam 51; and a rear seat cross beam 10, which is connected to the rear longitudinal beam 3 and installed at the connection between the rear longitudinal beam 3 and the second reinforcement beam 52. The rear pillar inner panel 9 is installed at the connection between the rear longitudinal beam 3 and the first reinforcement beam 51, so that the first reinforcement beam 51 can transmit force to the rear pillar inner panel 9 in the event of a collision or accident; and the rear seat cross beam 10 is installed at the connection between the rear longitudinal beam 3 and the second reinforcement beam 52, so that the second reinforcement beam 52 can also transmit force to the rear seat cross beam 10 in the event of a collision or accident, thereby further realizing force transmission throughout the vehicle.

[0052] In the embodiment of the present application, by designing an "H"-shaped reinforcement beam assembly 5, the design of a traditional C-pillar connecting beam structure can be eliminated. Through this "H"-shaped reinforcement beam assembly 5, the load of the D-pillar assembly 2 of the fastback type can be effectively and evenly transferred to the rear longitudinal beam 3, adapting to the rear side of the fastback type white body.

[0053] Comparison of body-in-white torsional stiffness through CAE analysis, such as Figure 4 The six key paths in the rear side assembly of the vehicle are shown, and the corresponding changes in the torsional stiffness of the vehicle body can be seen:

[0054]

[0055] The embodiment of the present application further provides a vehicle, which includes the vehicle rear side panel assembly described above. The vehicle in the embodiment of the present application includes the vehicle rear side panel assembly described in any of the above embodiments, which will not be described in detail here.

[0056] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0057] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0058] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A vehicle rear side panel assembly without a C-pillar, characterized in that: It includes: C-pillar upper side member (1); A D-pillar assembly (2), the D-pillar assembly (2) being connected to the C-pillar upper side beam (1), a rear longitudinal beam (3) being fixed to one end of the D-pillar assembly (2) away from the C-pillar upper side beam (1), the rear longitudinal beam (3) extending along the X direction of the vehicle, and a shock absorber fixing member (4) being installed on the rear longitudinal beam (3); A reinforcing beam assembly (5), one end of the reinforcing beam assembly (5) is fixed to a side of the D-pillar assembly (2) close to the C-pillar upper side beam (1), and the other end is fixed to the rear longitudinal beam (3), and the reinforcing beam assembly (5) is connected to the shock absorber fixing member (4) to strengthen the rigidity of the shock absorber mounting point in the shock absorber fixing member (4); The reinforcement beam assembly (5) comprises: a first reinforcing beam (51), wherein both ends of the first reinforcing beam (51) are respectively fixed to the D-pillar assembly (2) and the rear longitudinal beam (3); a second reinforcing beam (52), the second reinforcing beam (52) and the first reinforcing beam (51) being spaced apart, and the two ends of the second reinforcing beam (52) being fixed to the D-pillar assembly (2) and the rear longitudinal beam (3), respectively; the second reinforcing beam (52) and the first reinforcing beam (51) being connected via a reinforcing crossbeam (53), so that the first reinforcing beam (51), the second reinforcing beam (52) and the reinforcing crossbeam (53) form an "H"-shaped beam; the first reinforcing beam (51), the second reinforcing beam (52) and the reinforcing crossbeam (53) are connected to the shock absorber fixing member (4); The vehicle rear side assembly further comprises a rear pillar connecting beam (6), one end of the rear pillar connecting beam (6) being mounted on the D-pillar assembly (2), and the other end of the rear pillar connecting beam (6) being obliquely extended and fixed to the pedal beam (31) of the rear longitudinal beam (3), and the rear pillar connecting beam (6) being at least partially fixed to the first reinforcing beam (51) and forming a first reinforcing cavity with the first reinforcing beam (51).

2. The C-pillar-less vehicle rear side panel assembly according to claim 1, characterized in that: The D-pillar assembly (2) comprises an upper segment (21), the upper segment (21) being connected to the C-pillar upper side beam (1), and a middle segment (22) being fixed to one end of the upper segment (21) away from the C-pillar upper side beam (1); The two ends of the first reinforcing beam (51) are respectively fixed to the upper section (21) and the rear longitudinal beam (3), and the two ends of the second reinforcing beam (52) are respectively fixed to the middle section (22) and the rear longitudinal beam (3).

3. The C-pillar-less vehicle rear side panel assembly according to claim 1, characterized in that: The vehicle rear side panel assembly further comprises a connecting outer panel, the connecting outer panel being fixed to the second reinforcement beam (52), and the connecting outer panel and the second reinforcement beam (52) cooperate to form a second reinforcement cavity.

4. The C-pillar-less vehicle rear side panel assembly according to claim 1, characterized in that: The C-pillar upper side beam (1) has a first cavity (11) therein; The D-pillar assembly (2) comprises an upper segment (21), the upper segment (21) being connected to the C-pillar upper side beam (1), and the upper segment (21) having a second cavity (211) in communication with the first cavity (11); A skeleton reinforcement is installed in both the first cavity (11) and the second cavity (211), and the outer periphery of the skeleton reinforcement is respectively fitted to the inner sidewalls of the first cavity (11) and the second cavity (211).

5. The C-pillar-less vehicle rear side panel assembly according to claim 4, characterized in that: The skeleton reinforcement member comprises a skeleton frame (71), the skeleton frame (71) extends along the extension direction of the C-pillar upper side beam (1), and a skeleton reinforcement cavity (711) is provided in the skeleton frame (71); A plurality of sheet metal reinforcement members (72) are fixed at intervals along the extension direction of the skeleton frame (71), and the plurality of sheet metal reinforcement members (72) divide the reinforcement cavity into a plurality of skeleton reinforcement chambers.

6. The C-pillar-less vehicle rear side panel assembly according to claim 1, characterized in that: The C-pillar upper side beam (1) and the rear longitudinal beam (3) enclose a rear door opening area (81) and a rear triangular window area (82), and the rear door opening area (81) is connected to the rear triangular window area (82).

7. A vehicle rear side panel system, comprising the C-pillar-free vehicle rear side panel assembly according to claim 2 or 3, characterized in that: The vehicle rear side system includes: a rear pillar inner plate (9), the rear pillar inner plate (9) being connected to the rear longitudinal beam (3), and the rear pillar inner plate (9) being installed at a connection between the rear longitudinal beam (3) and the first reinforcing beam (51); A rear seat cross beam (10), wherein the rear seat cross beam (10) is connected to the rear longitudinal beam (3), and the rear seat cross beam (10) is installed at the connection between the rear longitudinal beam (3) and the second reinforcement beam (52).

8. A vehicle, characterized in that: It includes the vehicle rear side panel assembly without a C-pillar as described in any one of claims 1 to 6.

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