Rear body frame and vehicle

Abstract

The present invention discloses a vehicle body rear frame and a vehicle, wherein the vehicle body rear frame includes: a rear floor longitudinal beam, located below the vehicle body rear frame and extending in the front-to-back direction of the vehicle body; a CD column connecting beam disposed above the rear floor longitudinal beam, the CD column connecting beam connected to the vehicle body C-pillar and the vehicle body D-pillar, the CD column connecting beam and the rear floor longitudinal beam spaced apart in the vehicle body height direction, and located outside the rear floor longitudinal beam in the left-right direction of the vehicle body; a shock absorber mounting seat, the upper end of which is connected to the CD column connecting beam and the lower end is connected to the rear floor longitudinal beam; a shelf longitudinal beam is connected between the shelf front cross beam and the rear floor upper cross beam, a first connecting beam is provided between the shelf front cross beam and the shock absorber mounting seat, and / or a second connecting beam is provided between the shelf longitudinal beam and the shock absorber mounting seat. The vehicle body rear structure of the embodiment of the present invention can improve the rigidity of the vehicle body rear by providing multiple annular structures, and can transmit force in multiple directions through the shock absorber tower mounting seat, thereby improving the force transmission effect.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle body rear frame and a vehicle. Background Art

[0002] The rear body, D-pillar and roof together form a square-shaped D-ring. The rear structure, especially the rear trunk and the lower connection area of ​​the D-pillar, is a key structure that affects the torsional stiffness of the body frame. This is especially evident in SUVs, MPVs and other models. Regardless of the type of vehicle, the rear structure of the body has to withstand greater deformation and greater stress.

[0003] The rigidity and force transmission effect of the existing rear vehicle body structure cannot withstand greater deformation and greater stress, and its structure needs to be improved. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a vehicle body rear frame that can improve the rigidity of the vehicle body rear, transmit force in multiple directions, and improve the force transmission effect.

[0005] According to an embodiment of the present invention, the rear vehicle body frame includes: a rear floor longitudinal beam, which is located below the rear vehicle body frame and extends along the front-to-rear direction of the vehicle body; a CD column connecting beam, which is arranged above the rear floor longitudinal beam, and the CD column connecting beam is connected to the vehicle body C-pillar and the vehicle body D-pillar, the CD column connecting beam and the rear floor longitudinal beam are spaced apart in the vehicle body height direction, and along the left-right direction of the vehicle body, the CD column connecting beam is located on the outside of the rear floor longitudinal beam; a shock absorber mounting seat, the upper end of the shock absorber mounting seat is connected to the CD column connecting beam and the lower end is connected to the rear floor longitudinal beam; a shelf front cross beam and a rear floor upper cross beam, a shelf longitudinal beam is connected between the shelf front cross beam and the rear floor upper cross beam, a first connecting beam is provided between the shelf front cross beam and the shock absorber mounting seat, and / or a second connecting beam is provided between the shelf longitudinal beam and the shock absorber mounting seat.

[0006] According to the rear frame of the vehicle body according to the embodiment of the present invention, a ring structure is formed by forming a front cross beam of the shelf and the first connecting beam, the second connecting beam and the longitudinal beam of the shelf. At the same time, a ring structure is also formed between the first connecting beam and the shock absorber mounting seat and the structure above the CD column and the front cross beam of the shelf. There is also a ring structure formed between the front cross beam of the shelf, the longitudinal beam of the shelf, the cross beam on the rear floor and the shock absorber mounting seat, etc. Multiple ring structures can enhance the overall strength of the rear frame of the vehicle body. At the same time, the force can be transmitted to the CD column connecting beam and then to the front cross beam of the shelf through the shock absorber mounting seat, and / or transmitted to the first connecting beam and then to the front cross beam of the shelf through the shock absorber mounting seat, transmitted to the shelf longitudinal beam through the second connecting beam and transmitted to the front cross beam of the shelf through the shelf longitudinal beam. Force can be transmitted in multiple directions, the force transmission is dispersed, and the force transmission effect is enhanced.

[0007] According to an embodiment of the present invention, the rear vehicle body frame further includes a roof side beam, a window beam is connected between the CD column connecting beam and the roof side beam, and the end of the shelf front cross beam is connected to the window beam.

[0008] According to the rear vehicle body frame of an embodiment of the present invention, the first connecting beam is arranged between the front cross beam of the shelf and the shock absorber mounting seat at an angle toward the interior of the vehicle body, and / or the second connecting beam is arranged parallel to the front cross beam of the shelf.

[0009] According to the vehicle body rear frame of the embodiment of the present invention, the included angle between the first connecting beam and the second connecting beam is an acute angle.

[0010] According to the vehicle body rear frame of the embodiment of the present invention, the first connecting beam and the second connecting beam are connected at a position where the shock absorber mounting seat is connected.

[0011] According to the vehicle body rear frame of the embodiment of the present invention, the side of the shock absorber mounting seat close to the middle of the vehicle body is configured as an arc-shaped curved surface.

[0012] According to the vehicle body rear frame of an embodiment of the present invention, the shock absorber mounting seat includes an arched portion and a flanged portion, the flanged portion is distributed around the arched portion, the CD column connecting beam and the rear floor longitudinal beam are respectively connected to the flanged portion, and the arched portion is used to install and fix the shock absorber.

[0013] According to an embodiment of the present invention, the rear vehicle body frame further includes: a wheel house sheet metal, wherein the wheel house sheet metal is located between the CD pillar connecting beam and the rear floor longitudinal beam, and the flange portion includes an upper flange, a side flange and a lower flange, the upper flange is connected to the upper side of the arch portion and is used to be connected to the CD pillar connecting beam, the side flanges are connected to both sides of the arch portion and are used to be connected to the wheel house sheet metal, and the lower flange is connected to the lower side of the arch portion and is used to be connected to the rear floor longitudinal beam.

[0014] According to the vehicle body rear frame of the embodiment of the present invention, the CD pillar connecting beam and the rear floor longitudinal beam are made of aluminum extrusions, and the shock absorber mounting seat is made of a casting.

[0015] According to the vehicle body rear frame of the embodiment of the present invention, at least one of the shelf longitudinal beam, the shelf front cross beam, the rear floor upper cross beam, the first connecting beam and the second connecting beam is made of aluminum extrusion.

[0016] The embodiment of the present invention also discloses a vehicle.

[0017] A vehicle according to an embodiment of the present invention includes the aforementioned vehicle body rear frame.

[0018] The advantages of the vehicle and the above-mentioned rear vehicle body frame over the prior art are the same and will not be described in detail here.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0021] Figure 1 1 is a schematic structural diagram of a vehicle body rear frame according to an embodiment of the present invention;

[0022] Figure 2 is a perspective schematic diagram of a vehicle body rear frame according to an embodiment of the present invention;

[0023] Figure 3 It is a partial schematic diagram of the connection of the shelf longitudinal beam, the first connecting beam and the shelf front cross beam according to an embodiment of the present invention.

[0024] Icons: 100-rear body frame; 1-front crossbeam of the shelf; 2-longitudinal beam of the shelf; 21-first connecting notch; 3-first connecting beam; 31-second connecting notch; 4-second connecting beam; 5-CD pillar connecting beam; 6-upper crossbeam of the rear floor; 7-wheel arch sheet metal; 8-window beam; 9-longitudinal beam of the rear floor; 10-shock absorber mounting bracket; 11-roof side beam. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] Reference below Figure 1-Figure 3 The vehicle body rear frame 100 according to an embodiment of the present invention is described. The vehicle body rear structure according to the embodiment of the present invention includes multiple annular structures, which can improve the rigidity of the vehicle body rear and can transmit force in multiple directions through the shock absorber mounting seat 10 to improve the force transmission effect.

[0027] like Figure 1-Figure 3 As shown, the embodiment of the present invention discloses a vehicle body rear frame 100, including a rear floor longitudinal beam 9, a CD column connecting beam 5, a shock absorber mounting seat 10, a shelf front cross beam 1 and a rear floor upper cross beam 6.

[0028] Among them, the rear floor longitudinal beam 9 is located below the rear frame 100 of the vehicle body and extends along the front and rear direction of the vehicle body; the CD column connecting beam 5 is arranged above the rear floor longitudinal beam 9, and the CD column connecting beam 5 is connected to the C-pillar and the D-pillar of the vehicle body. The CD column connecting beam 5 and the rear floor longitudinal beam 9 are spaced apart in the height direction of the vehicle body, and along the left and right direction of the vehicle body, the CD column connecting beam 5 is located on the outside of the rear floor longitudinal beam 9; the upper end of the shock absorber mounting seat 10 is connected to the CD column connecting beam 5 and the lower end is connected to the rear floor longitudinal beam 9; the shelf longitudinal beam 2 is connected between the shelf front cross beam 1 and the upper cross beam 6 on the rear floor, and a first connecting beam 3 is provided between the shelf front cross beam 1 and the shock absorber mounting seat 10 and / or a second connecting beam 4 is provided between the shelf longitudinal beam 2 and the shock absorber mounting seat 10.

[0029] In practice, the CD column connecting beam 5 is located in the longitudinal direction of the vehicle body, and the rear floor longitudinal beam 9 is also along the longitudinal direction of the vehicle body and located on the inner side of the vehicle body. In addition, along the left-right direction of the vehicle body, the CD column connecting beam 5 is located on the outer side of the rear floor longitudinal beam 9. This allows a certain space to be formed between the rear floor longitudinal beam 9 and the CD column connecting beam 5, and the connected shock absorber mounting seat 10 presents a tendency to bulge into the vehicle body, and the shock absorber is installed in the space below the shock absorber mounting seat 10. The front cross beam 1 of the shelf is connected to the upper part of the width direction of the interior of the vehicle body, and the cross beam 6 on the rear floor is in the width direction of the vehicle body. Below the shelf, a longitudinal beam 2 can be set between the front cross beam 1 of the shelf and the upper cross beam 6 on the rear floor. The longitudinal beam 2 can be inclined with respect to the front cross beam 1 of the shelf, that is, the angle between the longitudinal beam 2 and the front cross beam 1 of the shelf can be an obtuse angle or an acute angle. Of course, the longitudinal beam 2 of the shelf can also be perpendicular to the front cross beam 1 of the shelf. The longitudinal beam 2 of the shelf in the embodiment of the present invention is perpendicular to the front cross beam 1 of the shelf, so that the front cross beam 1 of the shelf can be better supported after the front cross beam 1 of the shelf is connected to the cross beam 6 on the rear floor, and the stability can be enhanced.

[0030] In addition, the first connecting beam 3 and the second connecting beam 4 of the embodiment of the present invention are both connected to the shock absorber mounting seat 10. At this time, a ring structure is formed between the shelf plate longitudinal beam 2 and the shelf plate front cross beam 1, the first connecting beam 3, and the second connecting beam 4. At the same time, the shelf plate longitudinal beam 2, the second connecting beam 4, the shock absorber mounting seat 10 and the structure above the CD column connecting beam 5 and the shelf plate front cross beam 1 also form a ring structure. At the same time, a ring structure is formed between the first connecting beam 3, the shock absorber mounting seat 10, the structure above the CD column connecting beam 5 and the shelf plate front cross beam 1, and the shelf plate longitudinal beam 2, the rear An annular structure is also formed between the crossbeam 6 on the floor, the shock absorber mounting seat 10 and the structure above the shock absorber mounting seat 10, and the front crossbeam 1 of the shelf, or an annular structure is also formed between the longitudinal beam 2 of the shelf, the second connecting beam 4, the shock absorber mounting seat 10 and the crossbeam 6 on the rear floor, etc. At the same time, the front crossbeam 1 of the shelf, the longitudinal beam 2 of the shelf, the crossbeam 6 on the rear floor, the shock absorber mounting seat 10 and the structure above the CD column connecting beam 5 also form a larger annular structure. The embodiment of the present invention can enhance the strength and stability of the rear structure of the vehicle body and improve the rigidity of the rear vehicle body by setting these multiple annular structures.

[0031] Moreover, the first connecting beam 3 and the second connecting beam 4 of the embodiment of the present invention are respectively connected to the shock absorber mounting seat 10, and are respectively connected to the front cross beam 1 and the longitudinal beam 2 of the shelf board. The force of the shock absorber is transmitted to the surrounding parts through the shock absorber mounting seat 10 through the CD column connecting beam 5, the front cross beam 1 and the longitudinal beam 2 of the shelf board. It can also be transmitted to the surrounding parts through the first connecting beam 3 and the second connecting beam 4. This disperses the transmission of the force when receiving external force, reasonably decomposes the collision energy, and has a better force transmission effect.

[0032] In some embodiments, a roof side beam 11 is further included, a window beam 8 is connected between the CD column connecting beam 5 and the roof side beam 11 , and an end of the shelf front cross beam 1 is connected to the window beam 8 .

[0033] Reference Figure 2 As shown, the roof side beam 11 serves as the outline of the vehicle body roof, and the window beam 8 is tilted toward the interior of the vehicle and connected to the CD column connecting beam 5. In this way, when force is transmitted, after the shock absorber is subjected to external force, there is a force transmission path that is first transmitted to the CD column connecting beam 5 through the shock absorber mounting seat 10, and then transmitted to the obliquely set window beam 8. In this way, the force received at the window beam 8 is a vertical component force, which has a better collision force transmission and dispersion effect.

[0034] In some embodiments, the first connecting beam 3 is arranged obliquely toward the interior of the vehicle body between the front cross beam 1 of the shelf and the shock absorber mounting seat 10, and / or the second connecting beam 4 is arranged parallel to the front cross beam 1 of the shelf.

[0035] In practice, the first connecting beam 3 is connected obliquely, and one end of the first connecting beam 3 can be connected to the shock absorber mounting seat 10, and the other end is connected to the shelf front cross beam 1 near the window beam 8, or one end of the first connecting beam 3 is connected to the shock absorber mounting seat 10 and the other end extends toward a position close to the interior of the vehicle body and is connected to the shelf front cross beam 1. Regardless of the connection method, the first connecting beam 3 is connected between the shock absorber mounting seat 10 and the shelf front cross beam 1, and is used to support the shock absorber mounting seat 10 and the shelf front cross beam 1, so that the annular structure formed between the shelf front cross beam 1, the shelf longitudinal beam 2, the shock absorber mounting seat 10, and the window beam 8 is divided into two annular structures, which can enhance the overall stability, and at the same time enable the shock absorber mounting seat 10 to directly transfer the force to the shelf front cross beam 1 through the first connecting beam 3.

[0036] In practice, one end of the second connecting beam 4 is connected to the shock absorber mounting seat 10, and the other end of the second connecting beam 4 can be arranged obliquely upward or obliquely downward to be connected to the shelf longitudinal beam 2. In this way, the force applied to the shock absorber mounting seat 10 can be transmitted to the shelf longitudinal beam 2 through the second connecting beam 4, and then transmitted to the rear floor crossbeam 6 and the shelf front crossbeam 1 through the shelf longitudinal beam 2. In the embodiment of the present invention, the second connecting beam 4 is arranged parallel to the shelf front crossbeam 1, while the shelf longitudinal beam 2 and the shelf front crossbeam 1 are perpendicular. When the second connecting beam 4 is arranged parallel to the shelf front crossbeam 1, the connection between the shelf front crossbeam 1 and the shelf longitudinal beam 2 is perpendicular. When the force transmitted from the shock absorber mounting seat 10 reaches the connection between the second connecting beam 4 and the shelf longitudinal beam 2, the force is balanced. At the same time, the shelf front crossbeam 1 and the shelf longitudinal beam 2, the second connecting beam 4 and the first connecting beam 3 can also form a right-angled trapezoidal structure, which is more stable.

[0037] In some embodiments, the included angle between the first connecting beam 3 and the second connecting beam 4 is an acute angle.

[0038] Reference Figure 1 As shown, the annular structure formed by the shelf front cross beam 1, the shelf longitudinal beam 2, the second connecting beam 4 and the first connecting beam 3 is a first annular structure, and the annular structure formed between the shelf front cross beam 1, the first connecting beam 3, the shock absorber mounting seat 10 and the window beam 8 is a second annular structure. The shock absorber is close to the side of the vehicle body. One end of the first connecting beam 3 is connected to the shock absorber mounting seat 10 and the angle between it and the second connecting beam 4 is an acute angle, and the angle between the other end of the first connecting beam 3 and the shelf front cross beam 1 is an obtuse angle, which can make the sizes of the first annular structure and the second annular structure basically balanced without too much difference. In this way, the supporting effect of the first connecting beam 3 is better, and at the same time, it can also ensure that the stability and strength of the annular structure formed by the shelf front cross beam 1, the shelf longitudinal beam 2, the second connecting beam 4, the shock absorber mounting seat 10 and the window beam 8 are better.

[0039] In some embodiments, the first connecting beam 3 and the second connecting beam 4 are connected at the position where the shock absorber mounting seat 10 is connected. Figure 1 As shown, when the first connecting beam 3 and the second connecting beam 4 are connected to the shock absorber mounting seat 10, the positions of the first connecting beam 3 and the second connecting beam 4 are connected, and the front cross beam 1 of the shelf, the longitudinal beam 2 of the shelf, the second connecting beam 4 and the first connecting beam 3 can also form a stable annular structure, and the force from the shock absorber mounting seat 10 can be transmitted to the first connecting beam 3 and the second connecting beam 4 at the same position, so that the force transmitted to the first connecting beam 3 and the force transmitted to the second connecting beam 4 remain basically balanced.

[0040] In addition, it should be noted that the second connecting beam 4 of the embodiment of the present invention is parallel to and staggered with the front cross beam 1 of the shelf, and the second connecting beam 4 is also parallel to and staggered with the upper cross beam 6 on the rear floor. Moreover, the front cross beam 1 of the shelf, the second connecting beam 4 and the upper cross beam 6 on the rear floor are staggered in sequence from the front to the rear of the vehicle body. At the same time, a plate body is provided between the front cross beam 1 of the shelf, the second connecting beam 4 and the upper cross beam 6 on the rear floor, and the plate body is connected to the inner position surrounded by the above-mentioned multiple annular structures, so that the bottom of the plate body is provided with a connecting flange, which is connected to the upper cross beam 6 on the rear floor through the connecting flange and the connecting piece, and the top of the plate body is also provided with a connecting flange, which is connected to the bottom of the front cross beam 1 of the shelf through the connecting flange and the connecting piece. Firstly, the embodiment of the present invention can make the entire support structure from the front cross beam 1 of the shelf board to the cross beam 6 on the rear floor an oblique support by staggering and paralleling the front cross beam 1 of the shelf board, the second connecting beam 4 and the upper cross beam 6 on the rear floor from the front to the rear of the vehicle body, thereby increasing the length of the shelf longitudinal beam 2 between the upper cross beam 6 on the rear floor and the front cross beam 1 of the shelf board, thereby lengthening the force transmission path and enhancing the force release effect. At the same time, the oblique support of the plate body between the upper cross beam 6 on the rear floor and the front cross beam 1 of the shelf board can also improve the stability between the front cross beam 1 of the shelf board and the cross beam 6 on the rear floor.

[0041] In some embodiments, the side of the shock absorber mount 10 near the center of the vehicle body is configured as an arc-shaped surface. In practice, the shock absorber mount 10 can serve as the primary structure connecting the first connecting beam 3 and the second connecting beam 4. One end of the shock absorber mount 10 is connected to the rear floor longitudinal beam 9, and the other end is connected to the CD pillar connecting beam 5. This arc-shaped structure of the shock absorber mount 10 provides excellent collision protection, capable of withstanding significant pressure without causing stress concentration.

[0042] Specifically, there are two shock absorber mounting seats 10, one for the left shock absorber and the other for the right shock absorber; there are two shelf longitudinal beams 2, one for the left shelf longitudinal beam close to the left shock absorber and the other for the right shelf longitudinal beam close to the right shock absorber; the connection method between the left shock absorber and the left shelf longitudinal beam and the shelf front cross beam 1 is symmetrical to the connection method between the right shock absorber and the right shelf longitudinal beam and the shelf front cross beam 1.

[0043] There are two shelf longitudinal beams 2, and the two shelf longitudinal beams 2 are parallel to each other. The parallel arrangement of the shelf longitudinal beams 2 can make the force more uniform, and a ring structure is formed between the two shelf longitudinal beams 2 and the shelf front cross beam 1 and the rear floor cross beam 6, thereby improving the strength of the middle position of the rear part of the vehicle body. In addition, when the left shelf longitudinal beam, the right shelf longitudinal beam and the shelf front cross beam 1 are connected, refer to Figure 3 As shown, the shelf longitudinal beam 2 has a first connection notch 21. The first connection notch 21 allows the shelf longitudinal beam 2 to be connected to the rear of the shelf front crossbeam 1 or to the bottom of the shelf front crossbeam 1. This increases the contact area between the shelf longitudinal beam 2 and the shelf front crossbeam 1, and also increases the reliability of the connection between the shelf longitudinal beam 2 and the shelf front crossbeam 1. Moreover, when force is transmitted, it can be transmitted to the shelf front crossbeam 1 in different directions through the shelf longitudinal beam 2, effectively dispersing the force and improving the force transmission effect. Similarly, when the first connecting beam 3 is connected to the shelf front crossbeam 1, a second connection notch 31 is also provided. Through the second connection notch 31, the shelf front crossbeam 1 can be connected to the rear side or the bottom of the shelf front crossbeam 1, thereby increasing the stability and reliability of the connection between the first connecting beam 3 and the shelf front crossbeam 1.

[0044] Moreover, the middle portion of the shelf longitudinal beam 2 and the shock absorber mounting seat 10 are connected via the second connecting beam 4. In the embodiment of the present invention, by connecting the middle portion of the shelf longitudinal beam 2 to the shock absorber mounting seat 10, the distance between the upper and lower shelf front cross beams 1 and the upper cross beam 6 on the rear floor can be evenly divided into two parts from the second connecting beam 4. The force from the shock absorber mounting seat 10 can be evenly transmitted to the upper shelf front cross beam 1 and the lower rear floor cross beam 6, and the force from the shock absorber mounting seat 10 can be better balanced and dispersed to the upper and lower positions of the vehicle body, thereby maintaining the stability of the rear vehicle body frame 100.

[0045] In some embodiments, the shock absorber mounting seat 10 includes an arched portion and a flanged portion. The flanged portion is distributed around the arched portion. The CD pillar connecting beam 5 and the rear floor longitudinal beam 9 are respectively connected to the flanged portion. The arched portion is used to install and fix the shock absorber.

[0046] Among them, the arched portion is arc-shaped, and the center of the arc is located on the outer side of the vehicle. The flanged portion is distributed around the arched portion. Specifically, the flanged portion can be distributed at both ends in the height direction of the vehicle body, or can be distributed at the front and rear sides in the length direction of the vehicle body. The flanged portion at one end in the height direction is used to connect to the upper side rail, and the flanged portion at the other end is connected to the rear floor longitudinal beam 9. In addition, the front and rear positions of the arched portion along the length direction of the vehicle body can also be connected to other structures as a whole. By setting the shock absorber mounting seat 10 as an arched portion as a whole, stress concentration of the shock absorber on the shock absorber mounting seat 10 can be avoided, and the force applied by the shock absorber can be better and more evenly dispersed. At the same time, the arched portion can also make the connection point of the shock absorber mounting seat 10 more evenly stressed when it is connected to the first connecting beam 3 and the second connecting beam 4. When the shock absorber mounting seat 10 applies force to the first connecting beam 3 or the second connecting beam 4, the force can be better dispersed in all directions of the connection between the shock absorber mounting seat 10 and the first connecting beam 3, and the force can be dispersed in all directions of the connection between the shock absorber mounting seat 10 and the second connecting beam 4.

[0047] In some embodiments, it also includes: a wheel house sheet metal 7, the wheel house sheet metal 7 is located between the CD column connecting beam 5 and the rear floor longitudinal beam 9, and the flange portion of the above-mentioned shock absorber mounting seat 10 includes an upper flange, a side flange and a lower flange, the upper flange is connected to the upper side of the arch portion and is used to be connected to the CD column connecting beam 5, the side flanges are connected to both sides of the arch portion and are used to be connected to the wheel house sheet metal 7, and the lower flange is connected to the lower side of the arch portion and is used to be connected to the rear floor longitudinal beam 9.

[0048] Among them, by arranging the wheel cover sheet metal 7 and the shock absorber mounting seat 10 into one body, the wheel cover sheet metal 7 and the shock absorber mounting seat 10 can be distributed along the length direction of the vehicle body, and the wheel cover sheet metal 7 is located at the rear of the vehicle body. By connecting the side flange of the shock absorber mounting seat 10 with the wheel cover sheet metal 7, the connection between the two can be achieved more reliably and conveniently, and the strength of the shock absorber mounting seat 10 can be enhanced. The wheel cover sheet metal 7 can also enhance the vehicle's anti-collision performance when the vehicle is hit by external impact.

[0049] In some embodiments, the CD pillar connecting beam 5 and the rear floor longitudinal beam 9 are made of aluminum extrusions, and the shock absorber mounting seat 10 is made of a casting.

[0050] Through the above scheme, the shock absorber mounting seat 10 serves as a key component for installing the shock absorber. By setting the shock absorber mounting seat 10 as a casting and cooperating with the extruded parts of the CD column connecting beam 5 and the rear floor longitudinal beam 9, it can be ensured that it has sufficient strength to bear the impact of the shock absorber. The embodiment of the present invention adopts a method of cooperating with castings and extruded aluminum profiles, utilizing the main bearing capacity of the castings, and dispersing the force through extruded parts such as extruded aluminum profiles. A cavity is formed inside the extruded aluminum profile, and the cavity facilitates smooth force transmission.

[0051] In some embodiments, at least one of the shelf longitudinal beam 2 , the shelf front cross beam 1 , the rear floor upper cross beam 6 , the first connecting beam 3 and the second connecting beam 4 is made of aluminum extrusion.

[0052] Specifically, if the shelf longitudinal beam 2 is set to an aluminum extrusion with a cavity inside, its own weight can be reduced. In addition, the aluminum extrusion can absorb impact energy, maintain strength and flexibility under load, and rebound from impact. At the same time, the production method of the extrusion has great production flexibility. It only needs to replace the mold to produce products of different shapes and sizes. The mold replacement time is short and the production efficiency is high, which is of great significance for small-batch production. Similarly, one or more of the shelf front cross beam 1, the rear floor upper cross beam 6, the first connecting beam 3 and the second connecting beam 4 can be selected as aluminum extrusions. The internal cavity facilitates smooth force transmission, while also facilitating weight reduction and energy absorption.

[0053] An embodiment of the present invention also discloses a vehicle.

[0054] The vehicle according to the embodiment of the present invention includes the above-mentioned rear vehicle body frame 100. The multiple annular structures of the rear vehicle body frame 100 can improve the rigidity of the rear vehicle body, and can transmit force in multiple directions through the shock tower mounting seat 10, thereby improving the force transmission effect and enhancing the user experience of the vehicle.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to 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 invention 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 should not be understood as limiting the present invention.

[0056] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0057] In the description of the present invention, "plurality" means two or more.

[0058] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0059] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A vehicle body rear frame, characterized in that: include: A rear floor longitudinal beam, located below the rear frame of the vehicle body and extending along the front-rear direction of the vehicle body; a CD-pillar connecting beam, the CD-pillar connecting beam being disposed above the rear floor longitudinal beam, the CD-pillar connecting beam being connected to the C-pillar and the D-pillar of the vehicle body, the CD-pillar connecting beam being spaced apart from the rear floor longitudinal beam in a vehicle body height direction, and being located outboard of the rear floor longitudinal beam in a vehicle body left-right direction; a shock absorber mounting seat, wherein the upper end of the shock absorber mounting seat is connected to the CD column connecting beam and the lower end is connected to the rear floor longitudinal beam; A front cross beam of the shelf and an upper cross beam on the rear floor, a longitudinal beam of the shelf is connected between the front cross beam of the shelf and the cross beam on the rear floor, a first connecting beam is provided between the front cross beam of the shelf and the shock absorber mounting seat and / or a second connecting beam is provided between the longitudinal beam of the shelf and the shock absorber mounting seat.

2. The vehicle body rear frame according to claim 1, characterized in that: It also includes a roof side beam, a window beam is connected between the CD column connecting beam and the roof side beam, and the end of the front cross beam of the shelf is connected to the window beam.

3. The vehicle body rear frame according to claim 1, characterized in that: The first connecting beam is arranged between the front cross beam of the storage board and the shock absorber mounting seat and is tilted toward the interior of the vehicle body, and / or the second connecting beam is arranged parallel to the front cross beam of the storage board.

4. The vehicle body rear frame according to claim 3, characterized in that: An included angle between the first connecting beam and the second connecting beam is an acute angle.

5. The vehicle body rear frame according to claim 1, wherein: The first connecting beam and the second connecting beam are connected at a position where they are connected to the shock absorber mounting seat.

6. The vehicle body rear frame according to claim 1, characterized in that: The side of the shock absorber mounting seat close to the middle of the vehicle body is configured as an arc-shaped surface.

7. The vehicle body rear frame according to claim 1, characterized in that: The shock absorber mounting seat includes an arched portion and a flanged portion, the flanged portion is distributed around the arched portion, the CD column connecting beam and the rear floor longitudinal beam are respectively connected to the flanged portion, and the arched portion is used to install and fix the shock absorber.

8. The vehicle body rear frame according to claim 7, characterized in that: Also includes: The wheel arch sheet metal is located between the CD pillar connecting beam and the rear floor longitudinal beam, and the flange portion includes an upper flange, a side flange and a lower flange, the upper flange is connected to the upper side of the arch portion and is used to be connected to the CD pillar connecting beam, the side flanges are connected to both sides of the arch portion and are used to be connected to the wheel arch sheet metal, and the lower flange is connected to the lower side of the arch portion and is used to be connected to the rear floor longitudinal beam.

9. The vehicle body rear frame according to claim 1, characterized in that: The CD pillar connecting beam and the rear floor longitudinal beam are made of aluminum extrusion parts, and the shock absorber mounting seat is made of a casting part.

10. The vehicle body rear frame according to claim 1, wherein: At least one of the shelf longitudinal beam, the shelf front cross beam, the rear floor upper cross beam, the first connecting beam and the second connecting beam is made of aluminum extrusion.

11. A vehicle, characterized in that: The vehicle body rear frame comprises the vehicle body rear frame according to any one of claims 1 to 10.

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