Vehicle and rear cabin assembly thereof

Abstract

The utility model provides a vehicle and a rear cabin assembly thereof. The rear cabin assembly of the vehicle comprises rear shock absorption towers arranged on the left side and the right side respectively, a rear cabin upper longitudinal beam and a rear cabin lower longitudinal beam which are connected to the front sides of the rear shock absorption towers on the sides, and rear cabin rear longitudinal beams connected to the rear sides of the rear shock absorption towers on the sides. In addition, a plurality of rear cabin cross beams are connected between the rear shock absorption towers on the two sides, and power assembly suspension installation supports are arranged on the rear cabin lower longitudinal beams on the two sides and one of the rear cabin cross beams respectively. According to the vehicle rear cabin assembly, the longitudinal beams and the transverse beams are arranged to form the rear cabin assembly of a frame type structure so as to facilitate preparation of the rear cabin assembly and increase of the structural strength of the rear cabin assembly, meanwhile, the power assembly can be conveniently arranged in the rear cabin assembly through arrangement of the power assembly suspension installation points, and the vehicle rear cabin assembly is convenient to assemble and disassemble. And the power assembly suspension mounting points are arranged in a triangular shape, so that the mounting stability of the power assembly is ensured, and the quality of the whole vehicle is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle rear cabin assembly. The utility model also relates to a vehicle provided with the vehicle rear cabin assembly. Background Art

[0002] The existing high-performance vehicles with low streamlined bodies generally use the body structure of traditional passenger cars in their rear cabins, which has the problems of high manufacturing costs and insufficient overall structural strength. At the same time, due to the current layout of the beam structure in the rear cabin of the vehicle body, it is also difficult to arrange the powertrain in the rear cabin, and the rigidity of the powertrain installation point needs to be increased, which is not conducive to improving the stability of the powertrain installation and easily affects the overall quality of the vehicle. Utility Model Content

[0003] In view of this, the utility model aims to provide a vehicle rear compartment assembly to improve its structural strength and the stability of the power assembly installation.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vehicle rear cabin assembly, comprising rear shock towers disposed on left and right sides, a rear cabin upper longitudinal beam and a rear cabin lower longitudinal beam connected to the front side of the rear shock towers on each side, and a rear cabin rear longitudinal beam connected to the rear side of the rear shock towers on each side;

[0006] A plurality of rear cabin cross beams are connected between the rear shock towers on both sides, and powertrain suspension mounting brackets are respectively provided on the rear cabin lower longitudinal beams on both sides and on one of the rear cabin cross beams.

[0007] Furthermore, the plurality of rear compartment cross beams include a first cross beam, a second cross beam and a third cross beam which are arranged at intervals in the vertical direction of the vehicle;

[0008] The first cross beam is connected between the tops of the rear shock towers on both sides, the third cross beam is connected between the bottoms of the rear shock towers on both sides, the second cross beam is located between the first cross beam and the third cross beam, and the powertrain suspension mounting bracket is provided on the second cross beam.

[0009] Furthermore, an upper reinforcing longitudinal beam is connected between the upper longitudinal beam of the rear cabin on each side and the first cross beam;

[0010] From the vertical direction of the vehicle, the upper reinforcing longitudinal beams on each side are arranged crosswise with the upper longitudinal beams of the rear compartment on the same side, and the front ends of the upper reinforcing longitudinal beams on each side are connected to the front ends of the upper longitudinal beams of the rear compartment on the same side, and the rear ends of the upper reinforcing longitudinal beams on each side are connected to the first cross beam;

[0011] The rear ends of the upper reinforcing longitudinal beams on both sides are arranged close to the middle of the first cross beam in the left-right direction.

[0012] Furthermore, the rear cabin lower longitudinal beam on each side includes a lower longitudinal beam front section and a lower longitudinal beam rear section connected between the lower longitudinal beam front section and the rear shock tower;

[0013] The rear section of the lower longitudinal beam extends rearward and upward and is connected to the middle of the rear shock tower, and the powertrain suspension mounting brackets are respectively provided on the front sections of the lower longitudinal beams on both sides.

[0014] Furthermore, a reinforcing crossbeam is connected between the lower longitudinal beams of the rear cabin on both sides, and lower reinforcing longitudinal beams are respectively connected between the reinforcing crossbeam and the bottom of the rear shock towers on both sides;

[0015] The front ends of the lower reinforcing longitudinal beams on both sides are arranged close to the middle of the reinforcing cross beam in the left-right direction.

[0016] Furthermore, a reinforcing vertical beam is connected between the front section of the lower longitudinal beam on each side and the upper longitudinal beam of the rear cabin on the same side; and / or,

[0017] The powertrain suspension mounting brackets on the front sections of the lower longitudinal beams on both sides are integrally formed on the front sections of the lower longitudinal beams.

[0018] Furthermore, an anti-collision beam is connected between the rear ends of the rear longitudinal beams of the rear cabin on both sides; and / or,

[0019] A plurality of connection grooves are provided on the rear shock absorber towers on both sides, and the upper longitudinal beam of the rear cabin, the lower longitudinal beam of the rear cabin, and the rear longitudinal beam of the rear cabin are all connected to the corresponding connection grooves.

[0020] Furthermore, the rear shock absorber towers on both sides are integrally formed, and are annular in shape, and each of the rear shock absorber towers is provided with a through hole for the transmission shaft to pass through, a shock absorber mounting portion, and a plurality of swing arm mounting portions;

[0021] The shock absorber mounting portion is located at the top of the rear shock tower, and a plurality of swing arm mounting portions are arranged around the through hole.

[0022] Further, the shock absorber mounting portion includes a shock absorber mounting boss provided on the rear shock absorber tower, the shock absorber mounting boss is provided with a shock absorber mounting hole, and each of the swing arm mounting portions includes a swing arm mounting boss provided on the rear shock absorber tower, the swing arm mounting boss is provided with a swing arm mounting hole;

[0023] The rear shock absorber tower is provided with a reinforcing rib connected to the shock absorber mounting boss, and the reinforcing rib is arranged along the height direction of the rear shock absorber tower.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] The vehicle rear cabin assembly described in the utility model is provided with upper and lower longitudinal beams of the rear cabin located in front of the rear shock absorber tower, a rear longitudinal beam of the rear cabin located behind the rear shock absorber tower, and a rear cabin cross beam between the rear shock absorber towers on both sides, and powertrain suspension installation points are provided on the lower longitudinal beams of the rear cabin on both sides and the rear cabin cross beam. It can not only utilize the arrangement of each longitudinal beam and cross beam to form a rear cabin assembly with a frame structure, so as to facilitate the preparation of the rear cabin assembly and increase its structural strength, but also utilize the arrangement of each powertrain suspension installation point to facilitate the arrangement of the powertrain in the rear cabin assembly, and utilize the triangular arrangement between each powertrain suspension installation point to ensure the stability of the powertrain installation, which helps to improve the quality of the whole vehicle.

[0026] In addition, by arranging the rear cabin cross beams between the top and bottom of the rear shock absorber towers on both sides, the lateral stiffness between the rear shock absorber towers on both sides can be ensured. By arranging the upper reinforcing longitudinal beams, not only can the upper reinforcing longitudinal beams be used to strengthen the connection between the upper longitudinal beams and the first cross beam of the rear cabin on each side, thereby improving the overall stiffness of the upper part of the rear cabin, but also when the vehicle collides, a force transmission channel can be added between the vehicle cabin and the first cross beam and the rear shock absorber tower, thereby helping to improve the collision force transmission effect.

[0027] Secondly, the rear cabin lower longitudinal beam assembly includes a front section of the lower longitudinal beam and a rear section of the lower longitudinal beam, which is beneficial to the preparation of the rear cabin lower longitudinal beam; and extending the rear section of the lower longitudinal beam rearward and upward is beneficial to the transmission of the rear impact force at the rear shock tower in the direction pointing to the bottom of the cabin, which can reduce the intrusion of the rear cabin into the cabin and help improve rear impact safety.

[0028] By setting up a reinforcing crossbeam, the lateral rigidity of the vehicle's rear compartment can be further improved, and it is also beneficial to improve the stability of the powertrain suspension mounting bracket on the rear compartment lower longitudinal beam. Setting up a lower reinforcing longitudinal beam can not only utilize the connection between the lower longitudinal beam of the rear compartment on each side and the rear shock tower to strengthen the overall rigidity of the lower part of the rear compartment, but also increase the force transmission channel when the vehicle collides, which helps to improve the collision force transmission effect. The front end of the lower reinforcing longitudinal beams on both sides is arranged close to the middle of the reinforcing crossbeam, so that the lower reinforcing longitudinal beams on both sides are arranged in an "eight" shape, which is beneficial to improve the reinforcing effect of the reinforcing longitudinal beams.

[0029] In addition, by setting up reinforced vertical beams, it can have better vertical supporting capabilities, can provide better supporting effects between the upper longitudinal beam of the rear cabin and the lower longitudinal beam of the rear cabin, and ensure the stability of the upper and lower longitudinal beams of the rear cabin; the powertrain suspension mounting bracket on the front section of the lower longitudinal beam is integrally formed on the front section of the lower longitudinal beam, which can ensure the reliability of the powertrain suspension mounting bracket setting.

[0030] By setting up the anti-collision beam, a ring structure can be formed with the rear longitudinal beam of the rear cabin, the rear cross beam and the rear shock tower, which is conducive to improving the overall rigidity of the rear cabin. The rear shock tower is provided with a connecting groove connected to the upper longitudinal beam of the rear cabin, the lower longitudinal beam of the rear cabin and the rear longitudinal beam of the rear cabin, which not only facilitates the connection between the rear shock tower and the longitudinal beams, but also improves the connection firmness.

[0031] In addition, the rear shock absorber tower is configured in a ring shape, and a shock absorber mounting portion and a swing arm mounting portion are arranged thereon. The high strength of the ring structure can be utilized to increase the structural strength of the rear shock absorber tower. At the same time, it is also conducive to the integrated design of the mounting structure on the rear shock absorber tower, which helps to reduce the difficulty of designing and preparing the mounting structure.

[0032] The shock absorber mounting part and the swing arm mounting part adopt a mounting boss with mounting holes arranged on the rear shock absorber tower, which has a simple structure, is easy to form, and is also conducive to the installation operation of the shock absorber and the swing arm. By providing a reinforcing rib connected to the shock absorber mounting boss and arranged along the height direction of the rear shock absorber tower, the stiffness of the shock absorber mounting point can be increased, which can improve the reliability of the shock absorber installation.

[0033] Another object of the present invention is to provide a vehicle, wherein the vehicle rear compartment assembly as described above is provided in the vehicle.

[0034] The vehicle described in the utility model has all the beneficial effects of the above-mentioned vehicle rear compartment assembly, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0036] Figure 1 It is a structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model at a first viewing angle;

[0037] Figure 2 It is a structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model at a second viewing angle;

[0038] Figure 3 It is a structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model at a third viewing angle;

[0039] Figure 4 It is a structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model at a fourth viewing angle;

[0040] Figure 5 It is a structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model at a fifth viewing angle;

[0041] Figure 6 It is a structural schematic diagram of the rear shock tower according to an embodiment of the utility model;

[0042] Figure 7 It is a structural schematic diagram of the rear shock tower according to an embodiment of the utility model from another perspective;

[0043] Figure 8 This is a schematic structural diagram of the second crossbeam described in an embodiment of the utility model;

[0044] Fig. 9 This is a schematic structural diagram of the first mounting bracket according to an embodiment of the utility model;

[0045] Fig.10 It is a structural schematic diagram of the first mounting bracket according to an embodiment of the utility model at another viewing angle;

[0046] Fig.11 It is a partial structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model;

[0047] Fig.12 It is a partial structural schematic diagram of the vehicle rear compartment assembly according to an embodiment of the utility model;

[0048] Fig.13 This is a schematic diagram of the structure of the connecting bracket according to an embodiment of the utility model;

[0049] Fig.14 This is a schematic diagram of the structure of the connecting socket according to an embodiment of the utility model;

[0050] Fig.15 This is a schematic structural diagram of the connecting socket according to an embodiment of the utility model from another perspective;

[0051] Fig.16 This is a schematic structural diagram of the front section of the lower longitudinal beam according to an embodiment of the utility model;

[0052] Fig.17 It is a structural schematic diagram of the front section of the lower longitudinal beam according to an embodiment of the utility model in another viewing angle;

[0053] Fig.18 This is a schematic structural diagram of the rear section of the lower longitudinal beam according to an embodiment of the utility model;

[0054] Fig.19 This is a schematic diagram of the structure of the connecting frame according to an embodiment of the utility model;

[0055] Description of reference numerals:

[0056] 1. Rear shock tower; 2. Upper longitudinal beam of rear cabin; 3. Second cross beam; 4. First cross beam; 5. Third cross beam; 6. Front section of lower longitudinal beam; 7. Rear section of lower longitudinal beam; 8. Strengthening vertical beam; 9. Upper strengthening longitudinal beam; 10. Connecting seat; 11. Connecting bracket; 12. First mounting bracket; 13. Rear longitudinal beam of rear cabin; 14. Anti-collision beam; 15. First connecting plate; 16. Second connecting plate; 17. Strengthening cross beam; 18. Lower strengthening longitudinal beam; 19. Connecting frame; K. Through hole;

[0057] 101, shock absorber avoidance groove; 1011, shock absorber mounting boss; 1012, reinforcement rib; 102, swing arm avoidance groove; 1021, swing arm mounting boss; 103, first connecting groove; 104, fourth connecting groove; 105, reinforcement rib; 106, second connecting groove; 107, connecting boss; 108, third connecting groove; 109, mounting column;

[0058] 301, middle part; 302, end part;

[0059] 601, insertion slot; 602, second mounting bracket; 6021, mounting plate; 6022, bottom plate; 6023, rib plate;

[0060] 1001, front wall; 1002, bottom wall; 1003, folding plate; 1004, side plate; 1005, first tank body; 1006, second tank body;

[0061] 1101, first slot;

[0062] 1201, connecting ear; 1202, groove;

[0063] 1901. Second slot. DETAILED DESCRIPTION

[0064] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0065] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the 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 cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0066] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0067] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0068] The present embodiment relates to a vehicle rear cabin assembly, including rear shock towers 1 disposed on left and right sides, a rear cabin upper longitudinal beam 2 and a rear cabin lower longitudinal beam connected to the front side of each rear shock tower 1, and a rear cabin rear longitudinal beam 13 connected to the rear side of each rear shock tower 1. In addition, a plurality of rear cabin cross beams are connected between the rear shock towers 1 on both sides, and powertrain suspension mounting brackets are respectively disposed on the rear cabin lower longitudinal beams on both sides and on one of the rear cabin cross beams.

[0069] The vehicle rear cabin assembly of this embodiment is provided with the rear cabin upper and lower longitudinal beams located in front of the rear shock tower 1, the rear cabin rear longitudinal beam 13 on the rear side of the rear shock tower 1, and the rear cabin cross beam between the rear shock towers 1 on both sides, and the powertrain suspension installation points are provided on the rear cabin lower longitudinal beams and the rear cabin cross beams on both sides. It can not only form a frame-type rear cabin assembly by using the arrangement of each longitudinal beam and cross beam, so as to facilitate the preparation of the rear cabin assembly and increase its structural strength. At the same time, by using the arrangement of each powertrain suspension installation point, it is also possible to facilitate the arrangement of the powertrain in the rear cabin assembly, and by using the triangular arrangement between each powertrain suspension installation point, the stability of the powertrain installation is ensured, which helps to improve the quality of the whole vehicle.

[0070] Based on the above overall introduction, an exemplary structure of the vehicle rear compartment assembly of this embodiment is referred to as follows: Figures 1 to 5 As shown in , the plurality of rear cabin cross beams include a first cross beam 4, a second cross beam 3 and a third cross beam 5 arranged at intervals in the vertical direction of the vehicle. In addition, the first cross beam 4 is connected between the tops of the rear shock absorber towers 1 on both sides, the third cross beam 5 is connected between the bottoms of the rear shock absorber towers 1 on both sides, the second cross beam 3 is located between the first cross beam 4 and the third cross beam 5, and a powertrain suspension mounting bracket is provided on the second cross beam 3. In this embodiment, by respectively arranging the rear cabin cross beams between the tops and the bottoms of the rear shock absorber towers 1 on both sides, the lateral stiffness between the rear shock absorber towers 1 on both sides can be ensured.

[0071] In order to facilitate the understanding of this embodiment, the structure of the rear shock tower 1 is first introduced. Figure 6 and Figure 7As shown in , the rear shock absorber towers 1 on both sides of this embodiment are integrally formed, and are annular, and are respectively provided with a through hole K for the transmission shaft to pass through, a shock absorber mounting portion, and a plurality of swing arm mounting portions on each rear shock absorber tower 1. In addition, the shock absorber mounting portion is located at the top of the rear shock absorber tower 1, and the plurality of swing arm mounting portions are arranged around the through hole K.

[0072] In this embodiment, preferably, the rear shock tower 1 is integrally cast, which is convenient for the preparation of the rear shock tower 1, reduces the preparation cost, and ensures the structural strength of the rear shock tower 1. By setting the rear shock tower 1 in a ring shape and arranging a shock absorber mounting portion and a swing arm mounting portion on the rear shock tower 1, not only can the structural strength of the rear shock tower 1 be increased by utilizing the high strength of the ring structure, but also the preparation of the rear shock tower 1 can be facilitated and the preparation cost can be reduced. At the same time, it can also facilitate the integrated design of the installation structure on the rear shock tower 1, which helps to reduce the difficulty of designing and preparing the installation structure, and can improve the comprehensive performance of the rear shock tower 1.

[0073] Specifically, combined with Figure 6 and Figure 7 As shown in , the through hole K for the transmission shaft to pass through is roughly a long hole extending in the vertical direction of the vehicle. The rear shock tower 1 is arranged in the shape of the through hole K, and a protruding portion protruding upward is provided on the top of the rear shock tower 1, and the protruding portion is used to connect to the upper longitudinal beam 2 of the rear cabin. In addition, as shown in Figure 7 As shown in , the rear shock tower 1 is provided with a side plate arranged along its edge, so that the rear shock tower 1 has a good structural strength. In addition, the side plate extends to one side of the vehicle interior to improve the aesthetics of the rear shock tower 1 and also reduce the occupied space.

[0074] In addition, as a preferred embodiment, in this embodiment, in the left and right directions of the vehicle, Figure 1 and Figure 6 As shown in , the shock absorber mounting part and each swing arm mounting part are arranged on the side of the rear shock absorber tower 1 facing the outside of the vehicle, and a plurality of reinforcing ribs 105 are arranged on the side of the rear shock absorber tower 1 facing the inside of the vehicle. By arranging the reinforcing ribs 105 on the rear shock absorber tower 1, the structural strength of the rear shock absorber tower 1 can be increased, the reliability of the vehicle suspension installation in the vehicle body can be improved, and the overall rigidity of the vehicle body can also be improved. In addition, as a preferred embodiment, the reinforcing ribs 105 are connected to the above-mentioned side plates, and are multiple interlaced and connected, so as to better improve the structural strength of the rear shock absorber tower 1.

[0075] Specifically, combined with Figure 1 and Figure 6As shown in , the swing arm mounting parts of this embodiment are five and are arranged at intervals along the circumference of the through hole K. It is understandable that, in specific implementation, the number of swing arm mounting parts can be adjusted accordingly according to design requirements. In addition, as a specific embodiment, the shock absorber mounting part of this embodiment includes a shock absorber mounting boss 1011 arranged on the rear shock absorber tower 1, and the shock absorber mounting boss 1011 is provided with a shock absorber mounting hole. The shock absorber mounting boss 1011 is arranged on the above-mentioned protruding part, and in order to improve the installation stability of the shock absorber, as shown in FIG. Figure 6 As shown in FIG. 1 , there are two shock absorber mounting bosses 1011 arranged opposite to each other.

[0076] In addition, as a further embodiment, Figure 1 and Figure 6 As shown in , the rear shock absorber tower 1 is provided with a shock absorber avoidance groove 101, and the shock absorber mounting boss 1011 is located in the shock absorber avoidance groove 101. The provision of the shock absorber avoidance groove 101 is not only conducive to the installation and arrangement of the shock absorber on the rear shock absorber tower 1, but also makes each mounting boss located in the avoidance groove, which also helps to reduce the protruding height of the shock absorber mounting boss 1011, reduce the overall volume of the rear shock absorber tower 1, and facilitate its arrangement in the vehicle.

[0077] In addition, as a further embodiment, in combination with Figure 1 and Figure 6 As shown in , the rear shock tower 1 is provided with a reinforcing rib 1012 connected to the shock absorber mounting boss 1011, and the reinforcing rib 1012 is arranged along the height direction of the rear shock tower 1. Among them, as a specific embodiment, the reinforcing rib 1012 is arranged in a one-to-one correspondence with the shock absorber mounting boss 1011. In this embodiment, by providing the reinforcing rib 1012 connected to the shock absorber mounting boss 1011 and arranged along the height direction of the rear shock tower 1, the stiffness of the shock absorber mounting point can be increased, and the reliability of the shock absorber installation can be improved. In order to further improve the installation reliability of the shock absorber, the reinforcing rib 1012 of this embodiment is triangular, so as to take advantage of the high strength of the triangular structure and further improve the reinforcement effect. It can be understood that the number and shape of the reinforcing ribs 1012 can be changed according to design requirements.

[0078] Continue to refer to Figure 6 As shown in , each swing arm mounting part of this embodiment includes a swing arm mounting boss 1021 disposed on the rear shock absorber tower 1, and a swing arm mounting hole is provided on the swing arm mounting boss 1021. The swing arm mounting part of this embodiment adopts a swing arm mounting boss 1021 with a swing arm mounting hole disposed on the rear shock absorber tower 1, which has a simple structure, is easy to form, and is also conducive to the installation operation of the swing arm. In addition, in order to improve the installation firmness of the swing arm, as shown in FIG. Figure 1 As shown in , as a preferred embodiment, each swing arm mounting portion includes two swing arm mounting bosses 1021 arranged opposite to each other.

[0079] In addition, in order to further improve the use effect of the rear shock tower 1, as Fig.12 As shown in , as a further embodiment, a swing arm avoidance groove 102 is provided on the rear shock absorber tower 1, and a swing arm mounting boss 1021 is located in the swing arm avoidance groove 102. Such a design is not only conducive to the installation and arrangement of the swing arm on the rear shock absorber tower 1, but also helps to reduce the protruding height of the mounting boss, which can reduce the overall volume of the rear shock absorber tower 1 and facilitate its arrangement in the vehicle.

[0080] Here, it should be noted that, in addition to setting the shock absorber avoidance groove 101 and the swing arm avoidance groove 102 at the same time as above, it is also possible to only set the shock absorber avoidance groove 101 according to design requirements, that is, in this case, the swing arm mounting boss 1021 protrudes toward the outside of the vehicle relative to the rear shock absorber tower 1. In addition, it is also possible to only set the swing arm avoidance groove 102 according to design requirements, that is, in this case, the shock absorber mounting boss 1011 protrudes toward the outside of the vehicle relative to the rear shock absorber tower 1. This setting will obviously increase the space occupied by the rear shock absorber tower 1 on the whole vehicle.

[0081] In addition, in order to facilitate the connection between the rear shock tower 1 and each beam body, a plurality of connection grooves are provided on the rear shock towers 1 on both sides, and the rear cabin upper longitudinal beam 2, the rear cabin lower longitudinal beam, and the rear cabin rear longitudinal beam 13 are all connected to the corresponding connection grooves. This design not only facilitates the connection between the rear shock tower 1 and each longitudinal beam, but also improves the connection firmness.

[0082] Specifically, combined with Figure 1 and Figure 6 As shown in , the front end of the rear shock tower 1 is provided with a first connecting groove 103 for connecting with the upper longitudinal beam 2 of the rear cabin, and as a preferred embodiment, the first connecting groove 103 of this embodiment is roughly triangular. Figure 7 As shown in FIG. 1 , a second connecting groove 106 is provided on the inner side of the rear shock tower 1 , and the second connecting groove 106 is provided for the end of the second cross beam 3 to be embedded, and can be specifically welded to the end of the second cross beam 3 . Fig.13 As shown in the figure, in order to improve the connection strength between the rear shock tower 1 and the second cross beam 3, a plurality of interlaced ribs are provided in the second connecting groove 106 to improve the structural strength of this part, thereby improving the installation firmness of the second cross beam 3 and further improving the installation firmness of the powertrain.

[0083] In addition, still combined Figure 1 , Figure 6 and Figure 7As shown in FIG, a third connecting groove 108 is provided in the middle of the front end of the rear shock tower 1, and a fourth connecting groove 104 is provided in the middle of the rear end of the rear shock tower 1. The third connecting groove 108 is used for inserting the rear end of the lower longitudinal beam rear section 7 described below, and is connected to the lower longitudinal beam rear section 7. The second connecting groove 106 is used for inserting the front end of the rear longitudinal beam 13 of the rear cabin, and is connected to the rear longitudinal beam 13 of the rear cabin.

[0084] It should be noted that, in addition to providing the connection groove on the rear shock absorber tower 1 , it is also possible not to provide the connection groove on the rear shock absorber tower 1 , and it is also feasible to directly connect each beam body to the side surface of the rear shock absorber tower 1 .

[0085] As a preferred embodiment, the cross section of the first cross beam 4 of this embodiment is rectangular, so as to facilitate processing and manufacturing. It should be noted that in addition to setting the cross section of the first cross beam 4 to be rectangular, it is also feasible to set it to be circular or other shapes. In addition, as a preferred embodiment, Figure 8 As shown in FIG. 1 , the second cross member 3 of the present embodiment has an end portion 302 connected to each side rear shock tower 1 , and a middle portion 301 located between the end portions 302 on both sides.

[0086] In addition, a powertrain suspension mounting bracket is provided on the middle portion 301, and the outline of each end portion 302 projected in the left-right direction of the vehicle is larger than the outline of the middle portion 301 projected in the left-right direction of the vehicle. In this embodiment, by making the projected outline of the end portion 302 of the second cross beam 3 larger than the projected outline of the middle portion 301, the larger cross-sectional size of the end portion of the second cross beam 3 can be utilized to increase the stability of the connection with the rear shock tower 1.

[0087] like Figure 4 As shown in , in order to further improve the lateral support effect of the second cross beam 3, a plurality of cavities arranged at intervals are formed on the end portion 302, and correspondingly, a cavity connected to some of the cavities is provided on the middle portion 301. Such an arrangement can also make the second cross beam 3 have a higher structural strength and better connection reliability with the rear shock tower 1.

[0088] In addition, for the sake of convenience, the powertrain suspension mounting bracket on the second cross beam 3 is referred to as the "first mounting bracket 12", and the powertrain suspension mounting bracket provided on the lower longitudinal beam of the rear cabin is referred to as the "second mounting bracket 202". Fig. 9 and Fig.10As shown in , as a specific implementation, the front end of the first mounting bracket 12 of this embodiment has a groove 1202 adapted to be provided on the second cross beam 3, and the rear end has two connecting ears 1201 arranged opposite to each other, and a connecting hole is provided on each connecting ear 1201. The rear end of the second cross beam 3 is embedded in the groove 1202 and is welded to the first mounting bracket 12, and the powertrain suspension can be connected to the two connecting ears 1201 by bolts.

[0089] Here, it should be noted that the structure of the first mounting bracket 12 is not limited to Fig. 9 The structure shown in , which can be adjusted accordingly according to design requirements. In addition, in addition to the middle portion 301 and the end portion 302 having different profiles as described above, the second cross beam 3 can be set to have the same cross section at each portion.

[0090] Combination Fig.11 and Fig.12 As shown in the figure, the cross section of the third cross beam 5 of the embodiment is flat, and the cross section is roughly in the shape of a long strip extending along the front-rear direction of the vehicle. This design can not only increase the connection area between the third cross beam 5 and the rear shock tower 1, so as to better increase the overall rigidity of the rear part of the vehicle body. At the same time, it can also fully reduce the space occupied by the third cross beam 5 in the upper and lower directions of the vehicle, which is conducive to the installation of other components on the vehicle body.

[0091] In order to further enhance the lateral support function of the third cross beam 5, continue to refer to Fig.11 As shown in , a plurality of partition ribs are provided in the third cross beam 5, and the partition ribs divide the interior of the third cross beam 5 into a plurality of sub-cavities arranged in sequence along the front-rear direction of the vehicle. Such a configuration not only makes the lower cross beam have a better structural strength, but also can further improve the overall rigidity of the rear part of the vehicle body.

[0092] Combination Figure 1 and Fig.11 As shown in , in this embodiment, as a further implementation, a first connecting plate 15 and a second connecting plate 16 are connected between the third cross beam 5 and each side rear shock tower 1. The first connecting plate 15 is arranged horizontally and connected between the third cross beam 5 and the bottom of the rear shock tower 1. Specifically, as Figure 1 and Fig.11 As shown in FIG. 1 , as a preferred embodiment, the first connecting plate 15 of this embodiment is triangular in shape, so as to utilize the high strength of the triangular structure to further increase its connection strengthening capability.

[0093] In addition, in order to facilitate the connection between the first connecting plate 15 and the rear shock tower 1, as shown in FIG. Figure 1 and Figure 6As shown in FIG, a downwardly extending mounting column 109 is provided on the swing arm mounting boss 1021 at the bottom of the rear shock tower 1, and the first connecting plate 15 is connected between the mounting column 109 and the bottom of the third cross beam 5. Moreover, as a specific embodiment, a threaded hole is provided on the mounting column 109, one end of the first connecting plate 15 is welded to the bottom of the third cross beam 5, and the other end is screwed to the mounting column 109 by bolts.

[0094] In addition, combined Figure 1 As shown in , the second connecting plate 16 of this embodiment is arranged vertically and connected between the side of the third cross beam 5 and the inner side of the rear shock absorber tower 1, and the inner side of the rear shock absorber tower 1 is the side of the rear shock absorber tower 1 facing the inside of the vehicle in the left-right direction of the vehicle. Figure 1 As shown in, as a preferred embodiment, Fig.12 As shown in , a connecting boss 107 is provided on the inner side of the rear shock tower 1, and the second connecting plate 16 is connected to the connecting boss 107. In addition, the second connecting plate 16 of this embodiment is triangular, so as to utilize the high strength of the triangular structure to further increase its connection strengthening capability.

[0095] Here, it should be noted that the shapes of the first connecting plate 15 and the second connecting plate 16 are not limited to the triangle shown in the figure. In specific implementation, the first connecting plate 15 or the second connecting plate 16 can be set to a rectangular, circular or other shape according to design requirements. In addition, it should also be mentioned that in addition to designing the first connecting plate 15 and the second connecting plate 16 at the same time, only the first connecting plate 15 or the second connecting plate 16 can be set according to design requirements.

[0096] Reference Figures 1 to 5 As shown in , as a further embodiment, an upper reinforcing longitudinal beam 9 is connected between the upper longitudinal beam 2 of each rear compartment and the first cross beam 4. Moreover, from the vertical direction of the vehicle, the upper reinforcing longitudinal beam 9 on each side is arranged crosswise with the upper longitudinal beam 2 of the rear compartment on the same side, and the front end of the upper reinforcing longitudinal beam 9 on each side is connected to the front end of the upper longitudinal beam 2 of the rear compartment on the same side, and the rear end of the upper reinforcing longitudinal beam 9 on each side is connected to the first cross beam 4.

[0097] In this embodiment, by providing the upper reinforcing longitudinal beam 9, not only can the upper reinforcing longitudinal beam 9 be used to strengthen the connection between the upper longitudinal beam 2 of the rear cabin on each side and the first cross beam 4, thereby improving the overall rigidity of the upper part of the rear cabin, but also, when the vehicle collides, a force transmission channel can be added between the vehicle cabin and the first cross beam 4 and the rear shock tower 1, which helps to improve the collision force transmission effect.

[0098] And, as a preferred embodiment, Figure 1As shown in , the rear ends of the upper reinforcing longitudinal beams 9 on both sides are arranged close to the middle of the first cross beam 4 in the left-right direction. In this embodiment, the rear ends of the upper reinforcing longitudinal beams 9 on both sides are arranged close to the middle of the first cross beam 4, so that the upper reinforcing longitudinal beams 9 on both sides are arranged in an "eight" shape, which is conducive to improving the reinforcing effect of the upper reinforcing longitudinal beams 9. Among them, as a preferred embodiment, in order to facilitate processing and manufacturing, the cross section of the upper reinforcing longitudinal beam 9 in this embodiment is rectangular. Of course, in addition to being rectangular, it is also feasible to set the cross section of the upper reinforcing longitudinal beam 9 to be circular or other shapes.

[0099] In addition, as a further embodiment, Figure 1 and Figure 3 As shown in , the rear ends of the upper reinforcing longitudinal beams 9 on both sides are arranged close to the middle of the left-right direction of the first cross beam 4, and each upper reinforcing longitudinal beam 9 is connected to the first cross beam 4 through a connecting bracket 11. And, as a preferred embodiment, the structure of the connecting bracket 11 of this embodiment is as follows Fig.13 As shown in , a first slot 1101 adapted to the rear end of the upper reinforcing longitudinal beam 9 is formed at its front end, and the rear end is used to connect with the first cross beam 4. In addition, in order to improve the connection effect between the upper reinforcing longitudinal beam 9 and the first cross beam 4, as a further embodiment, the cross section of the connecting bracket 11 gradually increases from the front to the rear. As a result, the connection area between the connecting bracket 11 and the first cross beam 4 can be increased, and the two can be connected by welding. At the same time, the rear end of the upper reinforcing longitudinal beam 9 is inserted into the first slot 1101 and connected to the connecting bracket 11 by welding.

[0100] In addition, to further improve the connection strength, e.g. Figure 7 As shown in , a plurality of ribs are provided on the connecting bracket 11 to further improve the structural strength of the connecting bracket 11, thereby improving the connection strength between the upper reinforcing longitudinal beam 9 and the first cross beam 4. As a further embodiment, Figure 1 and Figure 3 As shown in the figure, the front end of the upper longitudinal beam 2 of each side of the rear cabin is provided with a connecting seat 10, and the upper longitudinal beam 2 of each side of the rear cabin is connected to the vehicle cabin through the connecting seat 10, and the front end of the upper reinforcing longitudinal beam 9 on each side is connected to the connecting seat 10 on the same side. In this embodiment, by providing the connecting seat 10, it is not only convenient to connect the upper longitudinal beam 2 of the rear cabin with the vehicle cabin, but also helpful to connect the upper longitudinal beam 2 of the rear cabin with the reinforcing longitudinal beam.

[0101] Furthermore, as a preferred embodiment, the structure of the connection base 10 of this embodiment refers to Fig.14 and Fig.15As shown in the figure, it includes a front wall 1001 connected to the vehicle cabin, a bottom wall 1002 arranged at the bottom of the front wall 1001, a side plate 1004 arranged below the bottom wall 1002, and a folding plate 1003 arranged between the front wall 1001 and the bottom wall 1002. In addition, a first trough body 1005 and a second trough body 1006 are formed between the folding plate 1003 and the front wall 1001 and the bottom wall 1002, and the first trough body 1005 and the second trough body 1006 are respectively arranged on two opposite sides of the folding plate.

[0102] In addition, the top of the front wall 1001 has a flange that bends backwards. This arrangement can not only improve its structural strength, but also facilitate connection with the reinforcing vertical beam 8 described below. The front end of the upper longitudinal beam 2 of the rear cabin of this embodiment is inserted into the second trough 1006 and is welded to the connecting seat 10. The connection by welding can better improve the overall rigidity of the rear part of the vehicle. In addition, the front end of the upper reinforcing longitudinal beam 9 is inserted between the front wall 1001 and the flange, and is welded to the front wall 1001 and the flange. It should be noted that the connection between the upper reinforcing longitudinal beam 9 and the first cross beam 4 and the connecting seat 10 can be connected by other means such as screw connection in addition to welding.

[0103] In addition, as a preferred embodiment, Figure 1 and Figure 2 As shown in , the lower longitudinal beams of each side rear compartment of this embodiment include a lower longitudinal beam front section 6, and a lower longitudinal beam rear section 7 connected between the lower longitudinal beam front section 6 and the rear shock tower 1. In addition, the lower longitudinal beam rear section 7 extends upward and backward and is connected to the middle of the rear shock tower 1, and powertrain suspension mounting brackets are respectively provided on the lower longitudinal beam front sections 6 on both sides. In this embodiment, the powertrain suspension mounting bracket is referred to as a "second mounting bracket 602". In addition, because the lower longitudinal beam front section 6 is located on the left and right sides of the vehicle body, the second mounting bracket 602 is mounted on the lower longitudinal beam front section 6, and the first mounting bracket 12 is mounted on the second cross beam 3, so that the first mounting bracket 12 and the two second mounting brackets 602 are arranged in a triangle.

[0104] The rear cabin lower longitudinal beam assembly of this embodiment includes a lower longitudinal beam front section 6 and a lower longitudinal beam rear section 7, which is convenient for preparing the rear cabin lower longitudinal beam. The lower longitudinal beam rear section 7 is extended to the rear and upward direction, which is convenient for the rear impact force at the rear shock tower 1 to be transmitted in the direction pointing to the bottom of the cabin, which can reduce the intrusion of the rear cabin into the cabin and help improve the safety of rear impact.

[0105] Among them, as a preferred embodiment, Fig.16 and Fig.17As shown in , the powertrain suspension mounting brackets (i.e., the second mounting brackets 602) on the front sections 6 of the lower longitudinal beams on both sides are all integrally formed on the front section 6 of the lower longitudinal beam. In order to improve the connection effect with the rear section 7 of the lower longitudinal beam, an insertion groove 601 is provided at the rear end of the front section 6 of the lower longitudinal beam, and the front end of the lower longitudinal beam section is inserted into the insertion groove 601 and connected to the front section 6 of the lower longitudinal beam. In addition, a weight reduction groove with a notch facing the outside of the vehicle is formed on the front section 6 of the lower longitudinal beam, and the weight reduction groove extends along the length direction of the front section 6 of the lower longitudinal beam. In addition, in order to improve the structural strength of the front section 6 of the lower longitudinal beam, a plurality of staggered ribs are provided in the weight reduction groove, and each rib is supported between the upper and lower side walls of the weight reduction groove, so that the strength of the front section 6 of the lower longitudinal beam in the upper and lower directions of the whole vehicle can be improved.

[0106] In addition, continue to refer to Fig.16 and Fig.17 As shown in , the second mounting bracket 602 of this embodiment includes two mounting plates 6021 arranged at intervals along the front-rear direction of the vehicle, and a bottom plate 6022 disposed between the bottoms of the two mounting plates 6021. In addition, to improve the mounting strength, a rib plate 6023 is disposed between each side mounting plate 6021 and the front section 6 of the lower longitudinal beam. The power assembly can be connected to the two mounting plates 6021 by fasteners such as bolts.

[0107] The front section 6 of the lower longitudinal beam of the present embodiment adopts the above structure, which is not only conducive to lightweight design, but also has good structural strength, which is conducive to improving the overall strength and rigidity of the side structure of the rear compartment of the vehicle. At this time, in order to further improve the overall strength and rigidity of the side structure of the rear compartment of the vehicle, as shown in FIG. Fig.18 As shown in , the interior of the rear section 7 of the lower longitudinal beam is divided into a plurality of cavities, each of which extends along its length direction, so that the rear section 7 of the lower longitudinal beam has a better structural strength, thereby being able to improve the supporting effect between the rear shock tower 1 and the front section 6 of the lower longitudinal beam.

[0108] As a further embodiment, in combination Figure 1 , Figure 3 and Figure 5 As shown in the figure, a reinforcing crossbeam 17 is connected between the lower longitudinal beams of the rear cabin on both sides, and lower reinforcing longitudinal beams 18 are respectively connected between the reinforcing crossbeam 17 and the bottom of the rear shock towers 1 on both sides, and the front ends of the lower reinforcing longitudinal beams 18 on both sides are arranged close to the middle of the reinforcing crossbeam 17 in the left and right directions.

[0109] In this embodiment, by setting the reinforcing crossbeam 17, the lateral rigidity of the vehicle rear compartment can be further improved, and it is also beneficial to improve the stability of the installation of the powertrain suspension mounting bracket on the rear compartment lower longitudinal beam. The lower reinforcing longitudinal beam 18 is set, which can not only utilize the connection between the lower longitudinal beam of the rear compartment on each side and the rear shock tower 1 to improve the overall rigidity of the lower part of the rear compartment, but also increase the force transmission channel when the vehicle collides, which helps to improve the collision force transmission effect. The front ends of the lower reinforcing longitudinal beams 18 on both sides are arranged close to the middle of the reinforcing crossbeam 17, so that the lower reinforcing longitudinal beams 18 on both sides are arranged in an "eight" shape, which is beneficial to improve the reinforcing effect of the reinforcing longitudinal beams.

[0110] Furthermore, as a preferred embodiment, as a preferred implementation, for the convenience of processing and manufacturing, the cross section of the lower reinforcing longitudinal beam 18 is rectangular. Of course, in the specific implementation, the cross section of the lower reinforcing longitudinal beam 18 can also be set to a circular shape or other shapes. As a preferred implementation, Figure 3 and Figure 5 As shown in FIG. 1 , each lower reinforcing longitudinal beam 18 of this embodiment is connected to the reinforcing cross beam 17 through a connecting frame 19. This design can facilitate the connection between the lower reinforcing longitudinal beam 18 and the reinforcing cross beam 17. In order to improve the connection firmness between the lower reinforcing longitudinal beam 18 and the reinforcing cross beam 17, as a preferred embodiment, the structure of the connecting frame 19 of this embodiment is as follows: Fig.19 As shown in , a second slot 1901 adapted to the front end of the lower reinforcing longitudinal beam 18 is formed at its rear end, and the front end is connected to the reinforcing cross beam 17 .

[0111] In addition, in order to improve the connection effect between the lower reinforcing longitudinal beam 18 and the reinforcing cross beam 17, as a further implementation method, the cross section of the connecting frame 19 is gradually increased from the back to the front. In this way, the connection area between the connecting frame 19 and the reinforcing cross beam 17 can be increased, and the two are specifically connected by bolts. At the same time, the front end of the lower reinforcing longitudinal beam 18 is inserted into the second slot 1901 and welded to the connecting frame 19, wherein the connection method between the connecting bracket 11 and the lower reinforcing longitudinal beam 18 and the reinforcing cross beam 17 can be adjusted according to design requirements. In addition, in this embodiment, in order to further improve the connection strength, such as Fig.19 As shown in , a plurality of ribs are provided on the connecting frame 19 to further improve the structural strength of the connecting frame 19 , thereby improving the connection strength between the lower reinforcing longitudinal beam 18 and the reinforcing cross beam 17 .

[0112] In addition, combined Figure 1 and Figure 2As shown in the figure, as a further embodiment, a reinforcing vertical beam 8 is connected between the front section 6 of the lower longitudinal beam on each side and the upper longitudinal beam 2 of the rear cabin on the same side. By setting the reinforcing vertical beam 8, a better vertical support capacity can be provided, and a better support effect can be provided between the upper longitudinal beam 2 of the rear cabin and the lower longitudinal beam of the rear cabin, thereby ensuring the stability of the upper and lower longitudinal beams of the rear cabin. Of course, in the specific implementation, the number of reinforcing vertical beams 8 is not limited to that shown in the figure, and even the reinforcing vertical beam 8 may not be set according to the design requirements.

[0113] In addition, an anti-collision beam 14 is connected between the rear ends of the rear longitudinal beams 13 of the two sides of the rear cabin. In this embodiment, by providing the anti-collision beam 14, a ring structure can be formed with the rear longitudinal beam 13 of the rear cabin, the rear cabin cross beam and the rear shock tower 1, which is conducive to improving the overall rigidity of the rear cabin. In order to improve the use effect, a plurality of cavities are formed in the anti-collision beam 14, and each cavity is extended along the length direction of the anti-collision beam 14, so that the anti-collision beam 14 can have a good structural strength.

[0114] The vehicle rear cabin assembly of the present embodiment, by adopting the above structure, can be advantageous for the preparation of the rear cabin assembly and increase its structural strength. At the same time, by utilizing the setting of each powertrain suspension mounting point, it can also be convenient for arranging the powertrain in the rear cabin assembly, and by utilizing the triangular arrangement between each powertrain suspension mounting point, the stability of the powertrain installation can be ensured, which helps to improve the quality of the entire vehicle.

[0115] In addition, the present embodiment also relates to a vehicle, in which the vehicle rear compartment assembly as described above is provided.

[0116] The vehicle of this embodiment has all the beneficial effects of the above-mentioned vehicle rear compartment assembly, which will not be described in detail here.

[0117] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle rear compartment assembly, characterized in that: It comprises rear shock absorbing towers (1) arranged on the left and right sides, a rear cabin upper longitudinal beam (2) and a rear cabin lower longitudinal beam connected to the front side of the rear shock absorbing towers (1) on each side, and a rear cabin rear longitudinal beam (13) connected to the rear side of the rear shock absorbing towers (1) on each side; A plurality of rear cabin cross beams are connected between the rear shock absorbing towers (1) on both sides, and powertrain suspension mounting brackets are respectively provided on the rear cabin lower longitudinal beams on both sides and on one of the rear cabin cross beams.

2. The vehicle rear compartment assembly according to claim 1, characterized in that: The plurality of rear compartment cross beams include a first cross beam (4), a second cross beam (3) and a third cross beam (5) which are arranged at intervals in the vertical direction of the vehicle; The first cross beam (4) is connected between the tops of the rear shock absorber towers (1) on both sides, the third cross beam (5) is connected between the bottoms of the rear shock absorber towers (1) on both sides, the second cross beam (3) is located between the first cross beam (4) and the third cross beam (5), and the powertrain suspension mounting bracket is provided on the second cross beam (3).

3. The vehicle rear compartment assembly according to claim 2, characterized in that: An upper reinforcing longitudinal beam (9) is connected between the upper longitudinal beam (2) of the rear cabin on each side and the first transverse beam (4); From the vertical direction of the vehicle, the upper reinforcing longitudinal beam (9) on each side is arranged crosswise with the upper longitudinal beam (2) of the rear compartment on the same side, and the front end of the upper reinforcing longitudinal beam (9) on each side is connected to the front end of the upper longitudinal beam (2) of the rear compartment on the same side, and the rear end of the upper reinforcing longitudinal beam (9) on each side is connected to the first cross beam (4); The rear ends of the upper reinforcing longitudinal beams (9) on both sides are arranged close to the middle of the first cross beam (4) in the left-right direction.

4. The vehicle rear compartment assembly according to claim 2, characterized in that: The rear cabin lower longitudinal beam on each side comprises a lower longitudinal beam front section (6) and a lower longitudinal beam rear section (7) connected between the lower longitudinal beam front section (6) and the rear shock tower (1); The rear section (7) of the lower longitudinal beam extends rearward and upward and is connected to the middle of the rear shock tower (1), and the powertrain suspension mounting brackets are respectively provided on the front sections (6) of the lower longitudinal beam on both sides.

5. The vehicle rear compartment assembly according to claim 4, characterized in that: A reinforcing crossbeam (17) is connected between the lower longitudinal beams of the rear cabin on both sides, and lower reinforcing longitudinal beams (18) are respectively connected between the reinforcing crossbeam (17) and the bottom of the rear shock tower (1) on both sides; The front ends of the lower reinforcing longitudinal beams (18) on both sides are arranged close to the middle of the reinforcing cross beam (17) in the left-right direction.

6. The vehicle rear compartment assembly according to claim 4, characterized in that: A reinforcing vertical beam (8) is connected between the front section (6) of the lower longitudinal beam on each side and the upper longitudinal beam (2) of the rear compartment on the same side; and / or, The powertrain suspension mounting brackets on the lower longitudinal beam front sections (6) on both sides are integrally formed on the lower longitudinal beam front sections (6).

7. The vehicle rear compartment assembly according to claim 1, characterized in that: An anti-collision beam (14) is connected between the rear ends of the rear longitudinal beams (13) of the rear compartment on both sides; and / or, The rear shock absorbing towers (1) on both sides are provided with a plurality of connection grooves, and the upper longitudinal beam (2) of the rear cabin, the lower longitudinal beam of the rear cabin, and the rear longitudinal beam (13) of the rear cabin are all connected to the corresponding connection grooves.

8. The vehicle rear compartment assembly according to any one of claims 1 to 7, characterized in that: The rear shock absorber towers (1) on both sides are integrally formed, and are annular in shape, and each of the rear shock absorber towers (1) is provided with a through hole (K) for the transmission shaft to pass through, a shock absorber mounting portion, and a plurality of swing arm mounting portions; The shock absorber mounting portion is located at the top of the rear shock absorber tower (1), and a plurality of swing arm mounting portions are arranged around the through hole (K).

9. The vehicle rear compartment assembly according to claim 8, characterized in that: The shock absorber mounting portion comprises a shock absorber mounting boss (1011) disposed on the rear shock absorber tower (1), the shock absorber mounting boss (1011) being provided with a shock absorber mounting hole, and each swing arm mounting portion comprises a swing arm mounting boss (1021) disposed on the rear shock absorber tower (1), the swing arm mounting boss (1021) being provided with a swing arm mounting hole; The rear shock absorber tower (1) is provided with a reinforcing rib (1012) connected to the shock absorber mounting boss (1011), and the reinforcing rib (1012) is arranged along the height direction of the rear shock absorber tower (1).

10. A vehicle, characterized in that: The vehicle is provided with the vehicle rear compartment assembly according to any one of claims 1 to 9.

Images