Rear wall assembly of vehicle and vehicle

Abstract

The utility model relates to the technical field of automobiles, and discloses a rear wall assembly of a vehicle and the vehicle, the rear wall assembly comprises tail columns which are symmetrically arranged at the tail of the vehicle, each tail column comprises a cavity structure and a function integration structure, the cavity structures are arranged in the longitudinal extension direction of the tail columns, and the function integration structures are arranged in the longitudinal extension direction of the tail columns; the function integration structures are located between the adjacent cavity structures in the horizontal direction. The rear enclosing plate is located between the tail columns, and the rear enclosing plate is fixedly connected with the tail columns; and the cross beam structure is arranged on the rear enclosing plate, and the cross beam structure is fixedly connected with the rear enclosing plate. According to the rear wall assembly of the vehicle, the tail column with the cavity structure and the function integration structure is matched with the rear wall plate and the cross beam structure, a stable frame is constructed, the torsional strength of the vehicle body and the sinking resistance of the rear wall are improved, driving safety is guaranteed, meanwhile, the space utilization rate is optimized, and multiple use requirements are met.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to a rear assembly of a vehicle and the vehicle itself. Background Technology

[0002] With the continued growth in market demand for recreational vehicles (RVs) and multi-purpose commercial vehicles, users are placing higher demands on the versatility and space utilization of vehicles. Especially in diverse scenarios such as long-distance travel, outdoor camping, and business commuting, users expect to integrate living functions such as kitchens and bathrooms within a limited vehicle space, achieving a multi-functional user experience. This demand is driving the industry towards functional integration and space efficiency, requiring vehicles to improve their versatility while controlling overall weight, optimizing payload, and balancing energy conservation, environmental protection, and driving performance.

[0003] Currently, most recreational vehicles (RVs) use independent modular designs for their kitchen and bathroom functions. This involves installing separate modules such as the kitchen stove, washing facilities, and storage units inside the vehicle or in the trunk area via additional fixed brackets, without organic integration with the rear structure. This traditional approach results in low space utilization. The lack of integrated design between the independent modules and the vehicle structure leads to numerous redundant gaps between modules and the body, and between modules themselves, hindering maximum space utilization. This not only affects usability but also results in a disorganized and cluttered interior layout. Furthermore, the load-bearing capacity of the kitchen and bathroom modules is not considered; their weight relies entirely on the additional brackets. The connection points between the brackets and the body experience concentrated stress, and vibrations during long-term driving can lead to insufficient load-bearing stability, causing problems such as rear panel deformation and module displacement, affecting structural durability. Finally, the poor assembly coordination between the independent modules and the body and brackets negatively impacts the driving experience and safety.

[0004] Therefore, it is particularly important to develop a rear assembly and vehicle that can improve the torsional strength and rear bumper dent resistance of the vehicle body, ensure driving safety, optimize space utilization, and meet diverse usage needs. Utility Model Content

[0005] To address the aforementioned technical issues, this application provides a door structure and a vehicle. By constructing a stable frame through a rear pillar containing a cavity structure and a functional integration structure, in conjunction with a rear panel and a crossbeam structure, and by setting up a functional integration structure, the current lack of a rear assembly and vehicle that can improve the torsional strength of the vehicle body and the anti-dent resistance of the rear panel, ensure driving safety, optimize space utilization, and meet diverse usage needs is addressed.

[0006] To achieve the above objectives, the main technical solutions adopted in this application include:

[0007] In a first aspect, this application provides a rear assembly for a vehicle, the rear assembly comprising:

[0008] The tail pillar is symmetrically arranged at the rear of the vehicle. The tail pillar includes a cavity structure and a functional integrated structure. The cavity structure is arranged along the longitudinal extension direction of the tail pillar, and the functional integrated structure is located between adjacent cavity structures in the horizontal direction.

[0009] A rear panel, located between the tail posts, and fixedly connected to the tail posts;

[0010] A crossbeam structure is provided on the rear panel and is fixedly connected to the rear panel.

[0011] In some optional embodiments, the tail column includes a tail column outer plate and a tail column inner plate;

[0012] The outer plate of the tail column protrudes in a first preset direction within the target area, and the inner plate of the tail column protrudes in a second preset direction within the target area. The cavity structure is located between the protruding outer plate of the tail column and the protruding inner plate of the tail column.

[0013] The first preset direction is from the vehicle body to the rear of the vehicle, and the second preset direction is from the rear of the vehicle to the vehicle body.

[0014] In some optional embodiments, the tail column includes an upper tail column structure, the upper tail column structure includes an upper outer tail column plate and an upper inner tail column plate, and the cavity structure includes a plurality of upper cavities, the upper cavities being located between the upper outer tail column plate and the upper inner tail column plate.

[0015] In some optional embodiments, the tail column further includes a lower tail column structure, which includes a lower outer tail column plate and a lower inner tail column plate. The cavity structure also includes a plurality of lower cavities located between the lower outer tail column plate and the lower inner tail column plate.

[0016] In some optional embodiments, the functional integration structure includes several upper functional integration structures and several lower functional integration structures, wherein the upper functional integration structures are located between two adjacent upper cavities in the horizontal direction, and the lower functional integration structures are located between two adjacent lower cavities in the horizontal direction.

[0017] In some optional implementations, the plurality of upper functional integration structures are symmetrically arranged, and the plurality of lower functional integration structures are symmetrically arranged.

[0018] In some alternative embodiments, the beam structure includes a first beam, a second beam, and a third beam, with the first beam disposed at the top of the rear panel, the third beam disposed at the bottom of the rear panel, and the second beam disposed between the first beam and the third beam.

[0019] In some alternative embodiments, the rear assembly of the vehicle further includes a rear pillar disposed between the first crossbeam and the second crossbeam, one end of the rear pillar being fixedly connected to the rear panel, and the other end of the rear pillar being fixedly connected to the first crossbeam.

[0020] In some alternative implementations, the rear assembly of the vehicle further includes a storage structure located between the tail pillars.

[0021] Secondly, this application proposes a vehicle that includes a rear assembly of the vehicle as described in any of the above embodiments.

[0022] The rear assembly of the vehicle provided in this application includes: a rear pillar symmetrically disposed at the rear of the vehicle, the rear pillar comprising a cavity structure and a functional integrated structure, the cavity structure being disposed along the longitudinal extension direction of the rear pillar, and the functional integrated structure being located between adjacent cavity structures in the horizontal direction; a rear bulkhead disposed between the rear pillars and fixedly connected to the rear pillars; and a crossbeam structure disposed on the rear bulkhead and fixedly connected to the rear bulkhead. By using the rear pillars containing the cavity structure and functional integrated structure, in conjunction with the rear bulkhead and crossbeam structure, a stable frame is constructed, improving the torsional strength of the vehicle body and the rear bulkhead's resistance to dents, ensuring driving safety. Simultaneously, the functional integrated structure optimizes space utilization, meeting diverse usage needs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a first-view schematic diagram of the rear assembly of a vehicle according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic cross-sectional view of the tail pillar of a vehicle according to an embodiment of the present invention;

[0026] Figure 3This is a second-view schematic diagram of the rear assembly of a vehicle according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the force transmission channel of the rear assembly of a vehicle according to an embodiment of the present invention;

[0028] Figure 5 This is a third-view schematic diagram of the rear assembly of a vehicle according to an embodiment of the present invention.

[0029] The following is supplementary explanation of the attached figures:

[0030] 1-Tail column; 11-Cavity structure; 12-Functional integrated structure; 13-Tail column outer plate; 14-Tail column inner plate; 111-Upper cavity; 112-Lower cavity; 121-Upper functional integrated structure; 122-Lower functional integrated structure;

[0031] 2-Rear panel; 3-Crossbeam structure; 31-First crossbeam; 32-Second crossbeam; 33-Third crossbeam;

[0032] 4-Rear column; 5-Storage structure. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Current recreational vehicle (RV) solutions suffer from low space utilization, impacting usability. Vibrations during long-term driving can lead to insufficient load-bearing stability, and poor coordination between independent modules and the vehicle body / frame assembly negatively affects driving experience and safety. Therefore, to improve vehicle body torsional strength and rear panel dent resistance, ensuring driving safety, while optimizing space utilization and meeting diverse usage needs, this application provides a rear panel assembly and vehicle.

[0035] Please see Figure 1 , Figure 1 This is a first-view schematic diagram of a vehicle rear assembly according to an embodiment of the present invention. In one aspect, this application provides a vehicle rear assembly comprising:

[0036] Tail pillar 1, the tail pillar 1 is symmetrically arranged at the rear of the vehicle, the tail pillar 1 includes a cavity structure 11 and a functional integrated structure 12, the cavity structure 11 is arranged along the longitudinal extension direction of the tail pillar 1, and the functional integrated structure 12 is located between adjacent cavity structures 11 in the horizontal direction.

[0037] Rear panel 2, the rear panel 2 is located between the tail posts 1, and the rear panel 2 is fixedly connected to the tail posts 1;

[0038] A crossbeam structure 3 is provided on the rear panel 2 and is fixedly connected to the rear panel 2.

[0039] Optionally, the rear pillar 1 is the D pillar of the vehicle. The rear pillar 1 is symmetrically arranged along the rear of the vehicle, runs longitudinally through the upper and lower areas of the rear of the vehicle, connects to the top frame of the vehicle body above and the bottom load-bearing structure of the rear of the vehicle below, and forms longitudinal support on both sides of the rear of the vehicle through rigid connection with the rear panel 2 and the crossbeam structure 3. The integrated connection of the rear pillar 1, the side panel assembly, the rear panel 2 and the crossbeam structure 3 forms a three-way structure.

[0040] Optionally, the cavity structure 11 is arranged along the longitudinal direction of the tail post 1 and is formed by the tail post outer plate 13 and the tail post inner plate 14. There are cavities on both sides of the tail post 1, and the tail post 1 uses a double cavity structure at both the top and bottom. Specifically, the cavity structure 11 is further divided into an upper cavity 111 and a lower cavity 112, forming a layered double cavity pattern.

[0041] Optionally, the functional integrated structure 12 is located in the horizontal direction, between the lateral adjacent cavity structures 11 of the vehicle. This structure is a solid connecting section inside the tail pillar 1, rigidly connecting adjacent cavities to avoid structural deformation caused by independent force on the cavities. The functional integrated structure 12 can improve the lateral stiffness of the tail pillar 1 and work together with the cavity structure 11 to form a reinforced structure, balancing lightweight and load-bearing capacity.

[0042] Optionally, the rear panel 2 is horizontally arranged between the left and right rear pillars 1, with its left and right edges fixedly connected to the rear pillars 1 to form a completely enclosed rear panel structure. This ensures that the rear panel 2 and the rear pillars 1 form a rigid whole, preventing vibration and abnormal noise during driving. The rear panel 2 serves as a connection between the rear pillars 1 and the crossbeam structure 3, integrating the longitudinal support force of the two rear pillars with the lateral force of the crossbeam to form a closed-loop force frame, improving the overall structural strength of the rear of the vehicle. At the same time, the inner side of the rear panel 2 can be divided into a kitchen area and a bathroom area, providing an installation reference surface for kitchen and bathroom equipment, and working in conjunction with the functional integration structure 12 of the rear pillars 1 to achieve a functional layout.

[0043] Optionally, the crossbeam structure 3 is set laterally on the rear panel 2 along the left and right sides of the vehicle, and is tightly fitted and fixedly connected to the rear panel 2. Specifically, a combination of mortise and tenon splicing and high-strength bolt fastening is adopted, and the joints are filled with structural adhesive to form a rigid connection without loosening or gaps, so as to avoid long-term deformation caused by the weight of the kitchen and bathroom module and storage structure.

[0044] In an optional embodiment, the tail column 1 includes a tail column outer plate 13 and a tail column inner plate 14;

[0045] The tail column outer plate 13 protrudes in a first preset direction within the target area, and the tail column inner plate 14 protrudes in a second preset direction within the target area. The cavity structure 11 is located between the protruding tail column outer plate 13 and the protruding tail column inner plate 14.

[0046] The first preset direction is from the vehicle body to the rear of the vehicle, and the second preset direction is from the rear of the vehicle to the vehicle body.

[0047] Please see Figure 2 , Figure 2 This is a schematic cross-sectional view of the rear pillar of a vehicle according to an embodiment of the present invention. Optionally, the outer plate 13 and the inner plate 14 of the rear pillar are load-bearing plates constituting the rear pillar 1, which are high-strength stamped parts. The rear pillar 1 adopts a combination of double-layer plates of outer and inner plates to ensure structural rigidity and assembly consistency. The first preset direction is the vehicle body protruding outward towards the rear of the vehicle, and the outer plate 13 of the rear pillar protrudes in this direction in the target area to form an outward arc-shaped or trapezoidal protrusion structure, providing an external enclosure space for the cavity structure; the second preset direction is the vehicle rear protruding inward towards the vehicle body, and the inner plate 14 of the rear pillar protrudes in this direction in the same target area to form a corresponding inward protrusion structure, which, together with the protrusion of the outer plate, forms the enclosure shape of the cavity. The target area is the extension area of ​​the cavity structure 11, that is, the protrusion of the outer plate 13 and the inner plate 14 of the rear pillar is not a local single point, but a continuous or segmented protrusion covering the upper and lower sections, ensuring the continuous formation of the upper and lower cavity structures.

[0048] Optionally, the raised outer tail pillar plate 13 and the raised inner tail pillar plate 14 can be sealed together by edge welding or other methods, and the raised areas of the two form a closed cavity structure 11. This cavity structure 11 reduces the amount of material used while ensuring structural strength, which is in line with the trend of lightweight automotive development; and provides a basic structure for the "open" force transmission channel, so that the rear torsional force and impact force can be rigidly transmitted to the side assembly and the main body through the plates around the cavity, solving the problem of insufficient load-bearing strength of traditional D-pillars.

[0049] In an optional embodiment, the tail post 1 includes an upper tail post structure, the upper tail post structure includes an upper outer tail post plate and an upper inner tail post plate, and the cavity structure 11 includes a plurality of upper cavities 111, the upper cavities 111 being located between the upper outer tail post plate and the upper inner tail post plate.

[0050] In an optional embodiment, the tail post 1 further includes a lower tail post structure, which includes a lower outer tail post plate and a lower inner tail post plate. The cavity structure 11 further includes a plurality of lower cavities 112, which are located between the lower outer tail post plate and the lower inner tail post plate.

[0051] In an optional embodiment, the functional integration structure 12 includes a plurality of upper functional integration structures 121 and a plurality of lower functional integration structures 122. The upper functional integration structures 121 are located between two adjacent upper cavities 111 in the horizontal direction, and the lower functional integration structures 122 are located between two adjacent lower cavities 112 in the horizontal direction.

[0052] In an optional embodiment, the plurality of upper functional integration structures 121 are symmetrically arranged, and the plurality of lower functional integration structures 122 are symmetrically arranged.

[0053] Optionally, please refer to Figure 3 , Figure 3 This is a second-view schematic diagram of the rear assembly of a vehicle according to an embodiment of the present invention. The upper structure of the tail pillar is the section of the tail pillar 1 located in the upper middle part of the vehicle body. The upper outer panel of the tail pillar protrudes in a first preset direction, and the upper inner panel of the tail pillar protrudes in a second preset direction. The closed cavity formed by the two is the upper cavity 111. There are two upper cavities 111 on each tail pillar, which are arranged side by side in the horizontal direction. Adjacent upper cavities 111 are separated by an upper functional integration structure 121.

[0054] Optionally, the solid plate around the upper cavity 111 is machined to form a recessed platform structure, which serves as the mounting reference surface for the kitchen and bathroom storage components. This allows for integrated fixing of the components to the upper part of the tail column without the need for additional supports. At the same time, the upper cavity 111 can help distribute the weight load of the storage components, avoiding deformation of the plate caused by localized stress concentration.

[0055] Optionally, the lower structure of the tail pillar is the section of tail pillar 1 located in the lower middle part of the vehicle body. It is spliced ​​and fused with the upper structure plate in the middle of the tail pillar to form a complete longitudinal structure of the tail pillar, ensuring the continuity of force transmission between the upper and lower structures. The lower outer plate of the tail pillar protrudes in a first preset direction, and the lower inner plate of the tail pillar protrudes in a second preset direction. The closed cavity formed by the two is the lower cavity 112. Consistent with the upper cavity 111, there are also two lower cavities 112 on each tail pillar, which are distributed side by side in the horizontal direction to form the upper and lower double cavity structure of tail pillar 1. Adjacent lower cavities 112 are separated by a lower functional integration structure 122. The cross-sectional area of ​​the lower cavity 112 is slightly larger than that of the upper cavity 111 to meet the space requirements of pipeline layout. The lower cavities 112 of the left and right tail pillars are symmetrically distributed to ensure the left and right weight balance of the vehicle body.

[0056] Optionally, the functional integrated structure 12 and the cavity structure 11 are distributed at intervals, and the whole is divided into an upper functional integrated structure 121 and a lower functional integrated structure 122, which correspond to the upper structure and lower structure of the tail column, respectively, and are adapted to the cavity structures of the upper and lower sections to ensure the structural continuity and functional consistency of the tail column 1 from top to bottom.

[0057] Optionally, the upper functional integrated structure 121 is located between two adjacent upper cavities 111 in the horizontal direction. Each tail column upper structure has two parallel upper cavities 111, and the solid partition between two adjacent upper cavities 111 is the upper functional integrated structure 121. The upper functional integrated structure 121 is a solid structure integrally formed with the upper outer plate and upper inner plate of the tail column. Its lateral width needs to match the spacing of adjacent upper cavities 111, and its longitudinal height needs to ensure that it can effectively separate the cavities and bear the installation load.

[0058] Optionally, the upper functional integration structure 121 is symmetrical about the left and right tail pillars 1, with the position and size of the upper functional integration structure 121 on the upper part of the left tail pillar corresponding to the upper functional integration structure 121 on the upper part of the right tail pillar. The symmetry of the lower functional integration structure 122 is the same as that of the upper functional integration structure 121. The symmetrically distributed functional integration structures 12 can evenly transmit the lateral force of the tail pillar 1, avoiding the force imbalance caused by too many integrated structures on one side, thereby preventing tail pillar deformation or body torsional imbalance and improving the overall structural stability; the symmetrical arrangement ensures that the kitchen and bathroom functions on the left and right sides are consistent, which not only meets the user's need for symmetrical use of the vehicle's interior functions, but also facilitates standardized operations during production and assembly, reducing manufacturing errors; in addition, it can ensure that the force is not offset when transmitted laterally, ensuring the efficiency of the force transmission channel and avoiding force transmission loss or local stress concentration caused by structural asymmetry.

[0059] Optionally, the lower functional integration structure 122 is located between two adjacent lower cavities 112 in the horizontal direction. The lower structure of the stern post also has two juxtaposed lower cavities 112, and the solid separation part between adjacent lower cavities 112 is the lower functional integration structure 122. The lateral width of the lower functional integration structure 122 can be slightly larger than that of the upper functional integration structure 121 according to the lower functional requirements, ensuring the separation stability and load-bearing reliability of the lower cavities 112.

[0060] Optionally, the functional integration structure 12 enhances the lateral torsional stiffness of the stern post 1. A flat counterbore is machined on the inner side of the upper functional integration structure 121, which can be used as the exclusive installation reference surface for the bathroom storage table and the kitchen ingredient rack table, enabling the integrated fixation of the kitchen and bathroom components to the stern post without additional brackets; the lower functional integration structure 122 can provide positioning and support for the embedded pipelines such as the kitchen water channel, the bathroom water channel, and the water guide groove, preventing the pipelines from shaking in the lower cavity 112 and ensuring the stability of sewage guidance.

[0061] In an optional embodiment, the crossbeam structure 3 includes a first crossbeam 31, a second crossbeam 32, and a third crossbeam 33. The first crossbeam 31 is arranged at the top of the rear panel 2, the third crossbeam 33 is arranged at the bottom of the rear panel 2, and the second crossbeam 32 is arranged between the first crossbeam 31 and the third crossbeam 33.

[0062] Optionally, the crossbeam structure 3 is a rigid support system that runs through the rear panel 2 in the vehicle's transverse direction. Based on the vertical height of the rear panel 2, the first crossbeam 31, the second crossbeam 32, and the third crossbeam 33 are distributed from top to bottom in sequence. Both ends of the crossbeam structure 3 are fixed and connected by means of mortise and tenon joints and high-strength bolt fastening, with structural adhesive filled at the joints, ensuring the uniform transmission of the tail force and the structural stability.

[0063] Optionally, the first crossbeam 31, i.e., the upper crossbeam of the rear panel, is horizontally arranged in the top area of the rear panel 2 to ensure structural continuity. The first crossbeam 31 is closely attached to the inner side of the rear panel 2 to ensure a gapless rigid connection with the rear panel, avoiding force transmission loss, forming a rigid node for the transverse and longitudinal structures, providing the upper horizontal support for the "day" - shaped force transmission channel, and simultaneously preventing the lack of rigidity at the top of the tail due to the lack of transverse support.

[0064] Optionally, the second crossbeam 32 is horizontally arranged between the first crossbeam 31 and the third crossbeam 33, located in the middle area of the rear bulkhead 2. The two ends are correspondingly connected to the middle parts of the left and right tail pillars 1, that is, the connection part between the upper functional integration structure 121 and the lower functional integration structure 122. The second crossbeam 32 is processed by hot gas inflation technology and is made of hot-formed steel with a tensile strength greater than or equal to 1500 Mpa, which is the same material as the first crossbeam 31, ensuring high-strength bearing capacity in the middle area and can cope with the concentrated load after the installation of kitchen and bathroom equipment. As the middle support, the second crossbeam 32承接 the upper load transmitted by the first crossbeam and the lower load transmitted by the third crossbeam, and disperses the concentrated load to the left and right tail pillars and the rear bulkhead through its own high-strength material, avoiding structural deformation caused by excessive local stress, and forming a complete closed force transmission unit with the first crossbeam 31 and the rear bulkhead upright post 4, ensuring the continuous transmission of lateral force and torsional load, and further improving the dent resistance of the middle area of the rear bulkhead.

[0065] Optionally, the third crossbeam 33 is horizontally arranged in the bottom area of the rear bulkhead 2. The third crossbeam 33采用 a honeycomb aluminum beam structure, which significantly reduces the weight of the crossbeam itself while ensuring the support strength, meeting the development trend of automotive lightweight; at the same time, the honeycomb aluminum material has good buffering performance and can absorb the impact force generated by minor collisions at the bottom.

[0066] The three crossbeams共同参与 the tail force transmission. The first crossbeam主导 the construction of the upper "day" character force transmission channel, the second crossbeam负责 the load dispersion, and the third crossbeam承接 the bottom load transmission. The three integrate the lateral force, longitudinal force, and torsional load into a multi-dimensional force transmission path, significantly improving the torsional strength and mode of the white body. Moreover, with the differential material design of hot-formed steel and honeycomb aluminum, the material performance is accurately matched according to the load requirements of different regions, achieving the balance between strength and lightweight.

[0067] In an optional embodiment, the rear bulkhead assembly of the vehicle further includes a rear bulkhead upright post 4. The rear bulkhead upright post 4 is arranged between the first crossbeam 31 and the second crossbeam 32. One end of the rear bulkhead upright post 4 is fixedly connected to the rear bulkhead 2, and the other end of the rear bulkhead upright post 4 is fixedly connected to the first crossbeam 31.

[0068] Optionally, the rear bulkhead upright post 4 is vertically arranged between the first crossbeam 31 and the second crossbeam 32,构成 the longitudinal connection between the two crossbeams. The position of the rear bulkhead upright post 4 is located at the longitudinal separation of the two major functional areas, providing longitudinal support for functional components. The rear bulkhead upright post 4与 the first crossbeam 31, the second crossbeam 32, and the rear bulkhead 2共同围合 to form a closed "day" character force transmission unit, significantly improving the torsional strength and mode of the white body.

[0069] Please refer to Figure 4 , Figure 4 It should be noted that there are some inaccuracies in the original Chinese content, such as "承接" which is not a standard English expression in this context. I have tried my best to translate according to the overall meaning while maintaining the integrity of the text. You may need to further adjust and refine the translation according to the actual situation.Schematic diagram of the force transmission channel of the rear enclosure assembly of a vehicle according to an embodiment of the present utility model. As can be seen from the figure, in the longitudinal dimension, a "Kai" character force transmission channel is formed through the double-chamber structure 11 of the tail pillar 1. The left and right symmetrical tail pillars 1 serve as longitudinal supports, and the cavity structure 11 is a force conduction cavity. When the tail bears longitudinal loads, the force is transmitted from the rear enclosure panel 2 to the tail pillar 1 and then dispersed longitudinally along the double-chamber structure to the side enclosure assembly and the vehicle body main body, avoiding local stress concentration. The first crossbeam 31, the rear enclosure column 4, and the second crossbeam 32 enclose multiple juxtaposed "Ri" character force transmission units. The left and right tail pillars 1 serve as the left and right boundaries of the "Ri" character. When the vehicle bears lateral loads or torsional loads, the force is transmitted from the rear enclosure panel 2 to the crossbeam structure 3. The first crossbeam 31 transmits the force to the rear enclosure column 4, and then the column disperses the force downward to the second crossbeam 32. At the same time, the connection of both ends of the crossbeam to the tail pillar 1 further transmits the lateral force to the side enclosure assembly, realizing a closed-loop transmission. The entire force transmission channel eliminates connection gaps through tenon-and-mortise splicing, high-strength bolt fastening, and structural adhesive filling at the joints of all components, and cooperates with high-strength materials to ensure lossless and non-offset transmission of force. Moreover, the "Kai" character and "Ri" character force transmission paths are intertwined, enabling any-direction loads at the tail to be shunted through multiple paths, forming a closed force-bearing framework, which not only significantly improves the torsional strength and mode of the white vehicle body but also effectively bears additional loads such as kitchen and bathroom equipment and storage structures, avoiding problems such as bracket loosening and rear enclosure panel deformation caused by traditional independent modules. At the same time, during a collision, the force is quickly dispersed to the whole vehicle's load-bearing structure, reducing safety risks.

[0070] In an optional embodiment, the rear enclosure assembly of the vehicle further includes a storage structure 5, and the storage structure 5 is located on the rear enclosure panel 2.

[0071] Please refer to Figure 5 , Figure 5 Third perspective schematic diagram of the rear enclosure assembly of a vehicle according to an embodiment of the present utility model. Optionally, the storage structure 5 is divided into an upper storage area and a lower storage area along the vertical direction of the rear enclosure panel 2. The storage structure 5 is overall symmetrically distributed left and right or divided into two independent left and right storage units. Exemplarily, the left storage unit is adapted to the kitchen area for storing kitchen utensils, food ingredients, etc.; the right storage unit is adapted to the bathroom area for storing toiletries, cleaning tools, etc., ensuring clear functional partitioning and balanced stress. The functional subdivision design fits the kitchen and bathroom usage scenarios of recreational vehicles and multi-functional commercial vehicles, improving the use convenience. At the same time, the sealing and anti-slip designs ensure the use safety during driving.

[0072] Optionally, the storage structure 5 can adopt the form of a pull-out storage box or storage grid, and the overall is an embedded structure. When not in use, it is stored in the space enclosed by the rear enclosure panel 2, the crossbeam structure 3, and the tail pillar 1, without occupying the activity space, solving the problem of space waste of traditional independent storage modules and optimizing the space utilization rate.

[0073] The closed force-bearing frame formed by the rigid connection of the crossbeam structure 3 provides a stable bearing foundation for the storage structure 5, avoiding local stress concentration. The rear enclosure column 4 is located between the first crossbeam 31 and the second crossbeam 32. As the longitudinal separator of the upper storage area, it not only strengthens the lateral stability of the storage structure but also avoids the conflict between the storage box body and the "day" character force transmission channel, ensuring that the force transmission efficiency is not affected.

[0074] On the other hand, the present application provides a vehicle, which includes the rear enclosure assembly of the vehicle as described in any one of the above embodiments.

[0075] The rear enclosure assembly of the vehicle provided by the present application includes: a tail column symmetrically arranged at the rear of the vehicle. The tail column includes a cavity structure and a function integration structure. The cavity structure is arranged along the longitudinal extension direction of the tail column, and the function integration structure is located between the horizontally adjacent cavity structures; a rear enclosure panel located between the tail columns and fixedly connected to the tail columns; a crossbeam structure arranged on the rear enclosure panel and fixedly connected to the rear enclosure panel. The rear enclosure assembly of the vehicle provided by the present application has the following beneficial effects:

[0076] (1) The tail column adopts a three-way double-cavity structure to form an "open" character force transmission channel, and the crossbeam structure and the rear enclosure columns enclose to form multiple "day" character force transmission units. The two types of channels are intertwined to construct a three-dimensional force transmission network, which can quickly disperse the longitudinal collision force, lateral centrifugal force and torsional load to the side enclosure assembly and the vehicle body main body, significantly improving the torsional strength and mode of the white vehicle body, and effectively reducing the safety risk and installation stability;

[0077] (2) The upper cavity space of the tail column has a sunken platform in the function integration structure, which directly serves as the installation base for the bathroom storage table and the kitchen ingredient rack. The lower cavity is used to hide and arrange the kitchen water pipe, bathroom water pipe and water guide groove, avoiding the pipeline exposure and occupying space; the upper and lower inner cavity areas enclosed by the rear enclosure panel and the crossbeam are adapted to the pull-out storage structure, symmetrically distributed along the transverse direction and accurately corresponding to the kitchen and bathroom areas, meeting the multiple needs of the kitchen and bathroom, storage, etc., and realizing the efficient utilization of space;

[0078] (3) Through the integrated integration and material optimization, the weight of the redundant structure is reduced, avoiding the ineffective occupation of the effective load of the vehicle, achieving significant weight reduction on the premise of ensuring strength, not only reducing the fuel consumption and energy consumption but also improving the comprehensive driving performance of the vehicle.

[0079] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

[0080] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A rear assembly for a vehicle, characterized in that, The rear assembly of the vehicle includes: Tail pillar (1), the tail pillar (1) is symmetrically arranged at the rear of the vehicle, the tail pillar (1) includes a cavity structure (11) and a functional integration structure (12), the cavity structure (11) is arranged along the longitudinal extension direction of the tail pillar (1), and the functional integration structure (12) is located between adjacent cavity structures (11) in the horizontal direction. Rear panel (2), the rear panel (2) is located between the tail posts (1), and the rear panel (2) is fixedly connected to the tail posts (1); A crossbeam structure (3) is provided on the rear panel (2) and the crossbeam structure (3) is fixedly connected to the rear panel (2).

2. The rear assembly of the vehicle according to claim 1, characterized in that, The tail column (1) includes a tail column outer plate (13) and a tail column inner plate (14). The tail column outer plate (13) protrudes in a first preset direction within the target area, and the tail column inner plate (14) protrudes in a second preset direction within the target area. The cavity structure (11) is located between the protruding tail column outer plate (13) and the protruding tail column inner plate (14). The first preset direction is from the vehicle body to the rear of the vehicle, and the second preset direction is from the rear of the vehicle to the vehicle body.

3. The rear assembly of the vehicle according to claim 2, characterized in that, The tail column (1) includes an upper tail column structure, which includes an upper outer tail column plate and an upper inner tail column plate. The cavity structure (11) includes several upper cavities (111), which are located between the upper outer tail column plate and the upper inner tail column plate.

4. The rear assembly of the vehicle according to claim 3, characterized in that, The tail column (1) also includes a lower tail column structure, which includes a lower outer tail column plate and a lower inner tail column plate. The cavity structure (11) also includes several lower cavities (112), which are located between the lower outer tail column plate and the lower inner tail column plate.

5. The rear assembly of the vehicle according to claim 4, characterized in that, The functional integration structure (12) includes several upper functional integration structures (121) and several lower functional integration structures (122). The upper functional integration structure (121) is located between two adjacent upper cavities (111) in the horizontal direction, and the lower functional integration structure (122) is located between two adjacent lower cavities (112) in the horizontal direction.

6. The rear assembly of the vehicle according to claim 5, characterized in that, The plurality of upper functional integration structures (121) are symmetrically arranged, and the plurality of lower functional integration structures (122) are symmetrically arranged.

7. The rear assembly of the vehicle according to claim 1, characterized in that, The crossbeam structure (3) includes a first crossbeam (31), a second crossbeam (32), and a third crossbeam (33). The first crossbeam (31) is located at the top of the rear panel (2), the third crossbeam (33) is located at the bottom of the rear panel (2), and the second crossbeam (32) is located between the first crossbeam (31) and the third crossbeam (33).

8. The rear assembly of the vehicle according to claim 7, characterized in that, The rear assembly of the vehicle also includes a rear pillar (4), which is disposed between the first crossbeam (31) and the second crossbeam (32). One end of the rear pillar (4) is fixedly connected to the rear panel (2), and the other end of the rear pillar (4) is fixedly connected to the first crossbeam (31).

9. The rear assembly of the vehicle according to claim 1, characterized in that, The rear assembly of the vehicle also includes a storage structure (5) located on the rear panel (2).

10. A vehicle, characterized in that, The vehicle includes the rear assembly of the vehicle as claimed in any one of claims 1 to 9.

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