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

Abstract

The invention relates to a vehicle rear side wall assembly, a vehicle rear side wall system and a vehicle. The D-column assembly is connected to the C-column roof side rail, a rear longitudinal beam is fixed to the end, away from the C-column roof side rail, of the D-column assembly, the rear longitudinal beam extends in the X direction of the vehicle, and a shock absorber fixing piece is installed on the rear longitudinal beam; one end of the reinforcing beam assembly is fixed to the side, close to the C-column upper edge beam, of the D-column assembly, the other end of the reinforcing beam assembly is fixed to the rear longitudinal beam, and the reinforcing beam assembly is connected to the shock absorber fixing piece and used for reinforcing the rigidity of a shock absorber mounting point in the shock absorber fixing piece. By arranging the stiffening beam assembly, the overall rigidity of the C-column-free vehicle is improved, the stiffening beam assembly is connected to the shock absorber fixing piece, the rigidity around a shock absorber installation point can be enhanced, the situation that the installation point is loosened or damaged due to the fact that the shock absorber bears too large force is avoided, and when the vehicle is collided, collision force borne by the upper edge beam of the C column can also be transmitted to the stiffening beam assembly, so that the vehicle is prevented from being damaged. And the overall safety is enhanced.

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 passenger 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 supporting 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, which includes: 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 two 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 two 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.

[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 also includes a rear pillar connecting beam, one end of the rear pillar connecting beam is installed 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 reinforcements are installed in the first cavity and the second cavity, and the outer periphery of the skeleton reinforcements is respectively adhered to the inner walls 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 upper side beam of the C-pillar, 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 implementation, 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 enclosure system, which includes the above-mentioned vehicle rear side enclosure assembly, and the vehicle rear side enclosure 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 brought by the technical solution 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 the static rigidity around the shock absorber mounting point can also be enhanced to prevent 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 the overall safety. This solves the technical problem in the related technology 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 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 structure of the rear side panel assembly of a vehicle provided in an embodiment of the present application;

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

[0021] Figure 4 A schematic diagram of the structure 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 A schematic diagram of the structure in which the skeleton reinforcement provided in an embodiment of the present application is installed in the first cavity and the second cavity.

[0024] In the figure:

[0025] 1. C-pillar upper side beam; 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. Reinforced beam assembly; 51. First reinforced beam; 52. Second reinforced beam; 53. Reinforced cross beam; 54. Center section;

[0030] 6. Rear pillar connecting beam;

[0031] 71. skeleton frame; 711. skeleton reinforcement cavity; 72. sheet metal reinforcement member;

[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 solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, 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 assembly provided by an embodiment of the present application may include: a C-pillar upper side beam 1; a D-pillar assembly 2, wherein the D-pillar assembly 2 is connected to the C-pillar upper side beam 1, and a rear longitudinal beam 3 is fixed to one end of the D-pillar assembly 2 away from the C-pillar upper side beam 1, and the rear longitudinal beam 3 extends along the X direction of the vehicle, and a shock absorber fixing part 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 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 part 4, and is used to strengthen the rigidity of the shock absorber mounting point in the shock absorber fixing part 4. The shock absorber fixing part 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 may be fixed in other ways other than welding, such as bolt connection. 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 sets a reinforcing beam assembly 5 between the D-pillar assembly 2 and the rear longitudinal beam 3. The reinforcing beam assembly 5 has a certain supporting function between the D-pillar assembly 2 and the rear longitudinal beam 3, and the reinforcing beam assembly 5 can be welded and fixed to the D-pillar assembly 2 and the rear longitudinal beam 3 respectively, so that the D-pillar assembly 2 and the rear longitudinal beam 3 can be transmitted through the reinforcing beam assembly 5, thereby increasing the overall rigidity of the vehicle without a C-pillar. In addition, the reinforcing beam assembly 5 is connected to the shock absorber fixing member 4, which can also enhance the rigidity around the shock absorber installation point, prevent the installation point from loosening or being damaged due to excessive force on the shock absorber, so that the vehicle without a C-pillar can meet the viewing field of the occupants while enhancing the stability of the vehicle. During the driving process of the vehicle, the large load transmitted to the vehicle body by the road surface and the tire can be effectively dispersed and transmitted to the rear side frame member of the vehicle, thereby preventing the shock absorber fixing member 4 from stress concentration, cracking and other problems. 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 at 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 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.

[0039] In some optional embodiments, the reinforcing beam assembly 5 may include: a first reinforcing beam 51, wherein 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, wherein the second reinforcing beam 52 is spaced apart from the first reinforcing beam 51, and two ends of the second reinforcing beam 52 are respectively fixed to the D-pillar assembly 2 and the rear longitudinal beam 3, wherein the second reinforcing beam 52 and the first reinforcing beam 51 are connected via a reinforcing cross beam 53, such 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 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 anti-collision ability and overall safety performance, the provision of the reinforcing cross beam 53 can also enable some structures in the reinforcing beam assembly 5 to be specifically 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 the supporting 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 manufactured into four sections, and the second reinforcing beam 52 is also manufactured into four sections, so as to reduce the manufacturing difficulty of each section, and enable the manufactured sections to be more closely 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 first reinforcing beam 51, the section close to the reinforcing cross beam 53, the section close to the reinforcing cross beam 53 in the second reinforcing beam 52 and the reinforcing cross beam 53 can be integrally formed, and the section can be regarded as the central section 54. The integrally formed central section 54 can have a stronger strength and can more effectively bear and disperse the load from all directions of the vehicle. In addition to the reinforcing cross beam 53 being fixed to the shock absorber fixing member 4, the section of the first reinforcing beam 51 in the central section 54 and the section of the first reinforcing beam 51 can also be fixed to the shock absorber fixing member 4, increasing the contact and fixed area between the reinforcing beam assembly 5 and the shock absorber fixing member 4, so that the reinforcing beam assembly 5 can have a greater force on the shock absorber fixing member 4, thereby improving the stability and durability of the shock absorber. Further, the top surface of the reinforcing cross beam 53 along the vehicle height direction can be flush with the top surface of the shock absorber fixing member 4, so that the connection surface between the reinforcing beam assembly 5 and the shock absorber fixing member 4 can be more concentrated, making the connection more firm 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 is connected to the C-pillar upper side beam 1, and a middle segment 22 is 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 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. That is, the first reinforcing beam 51 and the second reinforcing beam 52 are respectively fixed to different segments in the D-pillar assembly 2, and by dispersing and strengthening the connection points, the connection strength of the vehicle body structure can be enhanced, and the anti-collision ability of the vehicle is improved. 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 beam 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 enclosure assembly further includes a rear pillar connecting beam 6, one end of which is mounted on the D-pillar assembly 2, and the other end of which is obliquely extended and 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 reinforcing beam 51 and forms a first reinforcing cavity with the first reinforcing beam 51. One end of the pillar connecting beam can be welded and fixed to the D-pillar assembly 2, and the other end is welded and fixed to the pedal beam 31, which increases the force transmission path of the vehicle rear side enclosure assembly. A certain inclination angle is formed between the pillar connecting beam and the rear longitudinal beam 3, which can enhance the support performance of the pillar connecting beam. The oblique extension can better bear the load and impact force from the side of the vehicle, and further, it can also realize the force transmission between the D-pillar assembly 2 and the rear longitudinal beam 3. In addition, welding and fixing at least part of the pillar connecting beam to the first reinforcing beam 51 to form a first reinforcing cavity helps to absorb and disperse the impact force, and further protect the safety of passengers.

[0043] In some optional embodiments, the vehicle rear side enclosure assembly further includes a connecting outer panel, which is fixed to the second reinforcing beam 52, and the connecting outer panel and the second reinforcing beam 52 cooperate to enclose a second reinforcing cavity. The connecting outer panel and the second reinforcing beam 52 can also be welded and fixed, and the second reinforcing cavity enclosed by them also helps to absorb and disperse the impact force, further protecting the safety of passengers. One end of the connecting outer panel can be welded to the D-pillar assembly 2, and the other end can be fixed to the fender above the rear wheel hub of the vehicle; the pillar connecting beam can also extend a certain length along the circumference of the fender above the rear wheel hub of the vehicle, which reasonably utilizes the structure and space of the vehicle.

[0044] In some optional embodiments, the C-pillar upper side beam 1 has a first cavity 11; the D-pillar assembly 2 includes an upper segment 21, the upper segment 21 is connected to the C-pillar upper side beam 1, and the upper segment 21 has a second cavity 211 connected to the first cavity 11; the first cavity 11 and the second cavity 211 are both installed with skeleton reinforcements, and the outer periphery of the skeleton reinforcements is respectively attached to the inner wall 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 passengers, the cross-sectional size of the C-pillar upper side beam 1 can be reduced. At this time, the sheet metal of the C-pillar upper side beam 1 can be overlapped and welded with the D-pillar assembly 2 to form a tighter connection and support each other. In order to reduce the cross-sectional size of the C-pillar upper side beam 1 while also reducing the impact on the vehicle's rigidity and stability, a skeleton reinforcement is installed in the first cavity 11. The skeleton reinforcement can extend from the first cavity 11 to the second cavity 211, and its peripheral sides are respectively attached to the inner side walls of the first cavity 11 and the inner side walls of the second cavity 211, so as to enhance the direct force transmission performance between the C-pillar upper side beam 1 and the upper segment 21, and also achieve the lightweight of the vehicle. The "H"-shaped reinforcement beam assembly 5 structure in the front side panel assembly and the rear side panel assembly is connected through the C-pillar upper side beam 1 skeleton. Under side collision and top pressure conditions, the side collision force is effectively transmitted and supported in the "H"-shaped reinforcement beam assembly 5, greatly improving the structural safety of the side panel without a C-pillar.

[0045] Preferably, the upper segment 21 includes a D-pillar reinforcement plate and a D-pillar inner plate connected to the D-pillar reinforcement plate, the D-pillar reinforcement plate and the D-pillar inner plate enclose the second cavity 211, and the outer periphery of the skeleton reinforcement member located in the second cavity 211 is respectively attached to the D-pillar inner plate and the D-pillar reinforcement plate. The D-pillar reinforcement plate and the D-pillar inner plate are manufactured separately to reduce the manufacturing difficulty, and they are welded and fixed after the manufacturing is completed; the end of the rear pillar connecting beam 6 close to the D-pillar assembly 2 can be connected to the D-pillar reinforcement plate, and the end of the first longitudinal beam close to the D-pillar assembly 2 can be fixed to the D-pillar inner plate.

[0046] See also Figure 6As shown, in some optional embodiments, the skeleton reinforcement member 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 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. The peripheral sides of the skeleton frame 71 are respectively attached and fixed to the inner side walls of the first cavity 11 and the second cavity 211, so that the skeleton frame 71 can support the upper segment 21 and the C-pillar upper side beam 1 respectively, and the plurality of sheet metal reinforcement members 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 respectively glued and fixed to the C-pillar upper side beam 1 and the upper segment 21. In the embodiment of the present application, the skeleton frame 71 is made of PA66-GF35 material, and the material used to glue and fix the skeleton frame 71 to the C-pillar upper side beam 1 and the upper segment 21 is a foaming material, and the foaming material 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 foaming 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 foaming 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] Through CAE analysis and comparison of 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, can significantly improve the top pressure result and can effectively improve the safety of the side panel frame structure.

[0049]

[0050] Preferably, see Figure 5 As shown, 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. The rear door opening area 81 is connected to the rear triangular window area 82 to realize a C-pillar-free structure of the vehicle.

[0051] The embodiment of the present application also provides a vehicle rear side enclosure system, which may include the vehicle rear side enclosure assembly as described above, characterized in that the vehicle rear side enclosure system further includes: a rear pillar inner plate 9, the rear pillar inner plate 9 is connected to the rear longitudinal beam 3, and the rear pillar inner plate 9 is installed at the connection between the rear longitudinal beam 3 and the first reinforcing beam 51; a rear seat cross beam 10, 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 reinforcing beam 52. The rear pillar inner plate 9 is installed at the connection between the rear longitudinal beam 3 and the first reinforcing beam 51, so that the first reinforcing beam 51 can transfer force to the rear pillar inner plate 9 when it is hit by a collision or an accident; the rear seat cross beam 10 is installed at the connection between the rear longitudinal beam 3 and the second reinforcing beam 52, so that the second reinforcing beam 52 can also transfer force to the rear seat cross beam 10 when it is hit by a collision or an accident, further realizing the transmission of force of the whole 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] The torsional stiffness of the body in white is compared 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 the present application, it should be noted that the terms "upper", "lower", etc. 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 the present application and simplifying the description, rather than indicating or implying 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 the present 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present 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 only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such 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 including 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A vehicle rear side panel assembly, characterized in that: It includes: C-pillar upper side beam (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 which 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).

2. The vehicle rear side panel assembly according to claim 1, characterized in that: The reinforcing beam assembly (5) comprises: A first reinforcing beam (51), wherein 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), wherein the second reinforcing beam (52) and the first reinforcing beam (51) are spaced apart, and two ends of the second reinforcing beam (52) are respectively fixed to the D-pillar assembly (2) and the rear longitudinal beam (3), and the second reinforcing beam (52) and the first reinforcing beam (51) are connected via 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).

3. The vehicle rear side panel assembly according to claim 2, 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).

4. The vehicle rear side panel assembly according to claim 2, characterized in that: The vehicle rear side assembly also includes a rear pillar connecting beam (6), one end of which is mounted on the D-pillar assembly (2), and the other end of which is obliquely extended and fixed to a pedal beam (31) of the rear longitudinal beam (3), and the rear pillar connecting beam (6) is at least partially fixed to the first reinforcing beam (51) and forms a first reinforcing cavity with the first reinforcing beam (51).

5. The vehicle rear side panel assembly according to claim 2, characterized in that: The vehicle rear side panel assembly also includes a connecting outer panel, which is fixed to the second reinforcing beam (52), and the connecting outer panel and the second reinforcing beam (52) cooperate to form a second reinforcing cavity.

6. The 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 component is installed in both the first cavity (11) and the second cavity (211), and the outer periphery of the skeleton reinforcement component is respectively attached to the inner side wall of the first cavity (11) and the second cavity (211).

7. The vehicle rear side panel assembly according to claim 6, 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.

8. The 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).

9. A vehicle rear side panel system, comprising the vehicle rear side panel assembly according to any one of claims 2 to 5, characterized in that: The vehicle rear side system comprises: 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 the connection between the rear longitudinal beam (3) and the first reinforcing beam (51); A rear row seat cross beam (10), wherein the rear row seat cross beam (10) is connected to the rear longitudinal beam (3), and the rear row seat cross beam (10) is installed at the connection between the rear longitudinal beam (3) and the second reinforcing beam (52).

10. A vehicle, characterized in that: It comprises the vehicle rear side panel assembly as claimed in any one of claims 1 to 8.

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