Vehicle body and vehicle

Abstract

The application discloses a vehicle body and a vehicle, and belongs to the technical field of vehicle bodies.The vehicle body comprises a front wall assembly, a floor assembly and a rear wall assembly.The front wall assembly is provided with a transversely extending front wall force transmission cavity.The floor assembly is arranged at the rear end of the front wall assembly and is provided with a longitudinally extending middle channel force transmission cavity.The front end of the middle channel force transmission cavity corresponds to the front wall force transmission cavity.The rear wall assembly is arranged at the rear end of the floor assembly and comprises a rear wall plate and a rear wall reinforcing part.The rear wall reinforcing part is arranged at the front side of the rear wall plate.A rear wall force transmission cavity is formed between the rear wall reinforcing part and the rear wall plate.The rear end of the middle channel force transmission cavity corresponds to the rear wall force transmission cavity.The lower end of the rear wall reinforcing part is fixedly connected to the top of the rear end of the floor assembly.The front wall force transmission cavity, the middle channel force transmission cavity and the rear wall force transmission cavity jointly form a force transmission channel.The weight of the vehicle can be reduced, the crash performance of the vehicle can be improved, the torsional rigidity of the vehicle body can be improved, the crash force can be better transmitted and decomposed, and the stress at each position can be more uniform.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a vehicle body and a vehicle. Background Technology

[0002] In related technologies, the front bulkhead assembly, floor assembly, and rear bulkhead assembly are set up separately, without being combined into a single structure. This prevents effective force transmission and distribution during a collision, leading to uneven force distribution and potentially causing greater damage to the vehicle. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a vehicle body that can reduce the weight of the vehicle and improve the overall collision performance of the vehicle, increase the torsional stiffness of the body, and better transmit and decompose the collision force when the vehicle is hit, thereby making the force distribution more uniform throughout the vehicle.

[0004] The present invention further proposes a vehicle.

[0005] The vehicle body according to the present invention includes: a front bulkhead assembly having a laterally extending front bulkhead force transmission cavity formed thereon; a floor assembly disposed at the rear end of the front bulkhead assembly having a longitudinally extending central channel force transmission cavity formed thereon, the front end of the central channel force transmission cavity corresponding to the front bulkhead force transmission cavity; and a rear bulkhead assembly disposed at the rear end of the floor assembly, the rear bulkhead assembly including: a rear bulkhead panel and a rear bulkhead reinforcement member, the rear bulkhead reinforcement member being disposed at the front side of the rear bulkhead panel, a rear bulkhead force transmission cavity being formed between the rear bulkhead reinforcement member and the rear bulkhead panel, the rear end of the central channel force transmission cavity corresponding to the rear bulkhead force transmission cavity, and the lower end of the rear bulkhead reinforcement member being fixedly connected to the top of the rear end of the floor assembly; the front bulkhead force transmission cavity, the central channel force transmission cavity, and the rear bulkhead force transmission cavity together form a force transmission channel.

[0006] The vehicle body according to the present invention can not only reduce the weight of the vehicle, but also improve the overall collision performance of the vehicle and increase the torsional stiffness of the body. In addition, when the vehicle is hit, the collision force can be better transmitted and decomposed, so that the force is more evenly distributed and the stress on other parts can be reduced.

[0007] In some examples of the present invention, the floor assembly includes: a floor, a central channel, and a central channel reinforcement, wherein the central channel is disposed on the floor, and the central channel reinforcement is disposed on the central channel and forms a central channel force transmission cavity between the central channel and the central channel.

[0008] In some examples of the present invention, the central channel reinforcement includes: a first central channel reinforcement, there are two first central channel reinforcements, both of which are disposed at the top of the central channel, and a force transmission cavity of the central channel is formed between the first central channel reinforcement and the central channel.

[0009] In some examples of the present invention, the front bulkhead assembly includes a front bulkhead front panel and a front bulkhead rear panel, the front bulkhead rear panel being connected to the rear side of the front bulkhead front panel, a front bulkhead force transmission cavity being formed between the front bulkhead rear panel and the front bulkhead front panel, the front bulkhead force transmission cavity corresponding to the front end of the first central channel reinforcement member.

[0010] In some examples of the present invention, the central channel reinforcement further includes: a second central channel reinforcement, wherein there are two second central channel reinforcements disposed at the bottom outside the central channel, and a force transmission cavity of the central channel is formed between the second central channel reinforcements, the central channel and the floor.

[0011] In some examples of the present invention, the front bulkhead assembly further includes: a lower front bulkhead plate, the lower front bulkhead plate being connected to the rear lower side of the rear front bulkhead plate, the front bulkhead force transmission cavity being formed between the lower front bulkhead plate and the rear front bulkhead plate, and one lateral end of the front bulkhead force transmission cavity corresponding to the front end of the second middle channel reinforcement member.

[0012] In some examples of the present invention, the rear assembly further includes: a rear crossbeam, the rear crossbeam having a rear force transmission cavity formed inside, the rear crossbeam including: an upper rear crossbeam, a middle rear crossbeam, and a lower rear crossbeam, the upper rear crossbeam being disposed at the upper end of the rear panel, the middle rear crossbeam being disposed at the middle of the rear panel, the rear end of the first middle channel reinforcement corresponding to the middle rear crossbeam, the lower rear crossbeam being disposed at the lower end of the rear panel, and the rear end of the second middle channel reinforcement corresponding to the lower rear crossbeam.

[0013] In some examples of the present invention, the rear bulkhead reinforcement is fixedly connected to the top of the rear end of the central channel, and both ends of the central channel are open along the length of the vehicle body. The front and rear ends of the force transmission cavity of the central channel are respectively connected to the front bulkhead force transmission cavity and the rear bulkhead force transmission cavity.

[0014] In some examples of the present invention, the rear reinforcement has protrusions on both sides, the protrusions form the rear force transmission cavity, the two protrusions form a V-shape, and the two protrusions correspond to the force transmission cavity of the central channel.

[0015] The vehicle according to the present invention includes: the body of the vehicle described above.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of the vehicle body at a first angle according to an embodiment of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the vehicle body at a second angle according to an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of the vehicle body from a first angle according to an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the vehicle body from a second angle according to an embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional view of the vehicle body from a third angle according to an embodiment of the present invention;

[0023] Figure 6 This is a structural schematic diagram of the rear reinforcement component.

[0024] Figure label:

[0025] 1. Vehicle body;

[0026] 10. Front bulkhead assembly; 11. Front bulkhead force transmission cavity; 12. Front bulkhead front panel; 13. Front bulkhead rear panel; 14. Front bulkhead lower panel; 20. Floor assembly; 21. Central channel force transmission cavity; 22. Floor; 23. Central channel; 24. Central channel reinforcement; 25. First central channel reinforcement; 26. Second central channel reinforcement; 30. Rear bulkhead assembly; 31. Rear bulkhead panel; 32. Rear bulkhead crossbeam; 33. Rear bulkhead force transmission cavity; 34. Rear bulkhead central crossbeam; 35. Rear bulkhead lower crossbeam; 36. Rear bulkhead reinforcement; 37. Rear bulkhead upper crossbeam; 38. Upper reinforcement plate; 39. Main reinforcement plate; 40. Lower reinforcement plate; 41. Protrusion. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0028] The following is for reference. Figures 1-6 The vehicle body 1 is described according to an embodiment of the present invention.

[0029] like Figure 1 and Figure 2As shown, the vehicle body 1 according to an embodiment of the present invention includes: a front bulkhead assembly 10, a floor assembly 20, and a rear bulkhead assembly 30. The front bulkhead assembly 10 is generally disposed between the driver's cab and the engine compartment of the vehicle, serving as a support and mounting point between the two. The floor assembly 20 is generally disposed at the lower end of the vehicle, providing support and reinforcement for the vehicle's interior. The rear bulkhead assembly 30 is generally disposed at the rear end of the vehicle, absorbing impact forces and reducing injuries to occupants in the event of a traffic accident.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the floor assembly 20 is located at the rear end of the front bulkhead assembly 10. This arrangement is reasonable, as the floor assembly 20 can provide some support for the front bulkhead assembly 10 and facilitates the overall installation of the floor assembly 20 on the vehicle.

[0031] like Figure 1 As shown, the rear assembly 30 is located at the rear end of the floor assembly 20. The rear assembly 30 includes a rear panel 31 and a rear reinforcement 36. The rear panel 31 is the main body of the rear assembly 30. By positioning the rear panel 31 at the rear end of the floor assembly 20, the rear panel 31 can be located at the rear end of the vehicle. The rear reinforcement 36 can enhance the structural strength of the rear assembly 30. The rear reinforcement 36 is positioned on the front side of the rear panel 31 for ease of installation.

[0032] like Figures 3-5 As shown, a transversely extending front force transmission cavity 11 is formed on the front bulkhead assembly 10, and a longitudinally extending central channel force transmission cavity 21 is formed on the floor assembly 20. The front end of the central channel force transmission cavity 21 corresponds to the front bulkhead force transmission cavity 11. A rear bulkhead force transmission cavity 33 is formed between the rear bulkhead reinforcement 36 and the rear bulkhead plate 31. The rear end of the central channel force transmission cavity 21 corresponds to the rear bulkhead force transmission cavity 33. The lower end of the rear bulkhead reinforcement 36 is fixedly connected to the top of the rear end of the floor assembly 20. In other words, the front bulkhead force transmission cavity 11, the middle channel force transmission cavity 21, and the rear bulkhead force transmission cavity 33 are correspondingly arranged, so that the front bulkhead assembly 10, the floor assembly 20, and the rear bulkhead assembly 30 can form a complete cavity structure. The front bulkhead force transmission cavity 11, the middle channel force transmission cavity 21, and the rear bulkhead force transmission cavity 33 together form a force transmission channel. This not only reduces the weight of the vehicle but also improves the overall collision performance of the vehicle and increases the torsional stiffness of the body 1. In addition, when the vehicle is hit, the collision force can be better transmitted and decomposed, so that the force is more evenly distributed and the stress on other parts can be reduced.

[0033] Among them, such as Figure 1 , Figure 2 and Figure 5As shown, the floor assembly 20 includes a floor 22, a central channel 23, and a central channel reinforcement 24. The central channel 23 is disposed on the floor 22, and the central channel reinforcement 24 is disposed on the central channel 23, forming a central channel force transmission cavity 21 between the central channel reinforcement 24 and the central channel 23. The floor 22 is the main body of the floor assembly 20 and provides support. The central channel 23 is disposed on the floor 22 and is located in the middle of the floor 22, which is located in the transverse middle position of the vehicle body 1. The central channel reinforcement 24 provides reinforcement; by placing the central channel reinforcement 24 on the central channel 23, the structural strength of the central channel 23 is enhanced, and the vibration intensity at the central channel 23 is reduced. Furthermore, a central channel force transmission cavity 21 can be formed between the central channel reinforcement 24 and the central channel 23. This can reduce the weight of the vehicle and improve the overall collision performance of the vehicle and the torsional stiffness of the body 1. In addition, the collision force can be transmitted and decomposed through the central channel force transmission cavity 21, thereby making the force distribution more uniform.

[0034] According to an optional embodiment of the present invention, such as Figure 5 As shown, the central channel reinforcement 24 includes a first central channel reinforcement 25, which is disposed at the top of the central channel 23, and a central channel force transmission cavity 21 is formed between the first central channel reinforcement 25 and the central channel 23. By disposing the first central channel reinforcement 25 at the top of the central channel 23, the first central channel reinforcement 25 can reinforce the top of the central channel 23, reducing the vibration intensity at the top of the central channel 23. Furthermore, the central channel force transmission cavity 21 formed between the first central channel reinforcement 25 and the top of the central channel 23 allows the impact force to be transmitted and distributed through the central channel force transmission cavity 21, thereby making the force distribution more uniform.

[0035] It should be noted that a groove is provided at the top of the central channel 23. The groove is located at the top of the central channel 23. The groove can cooperate with the peripheral parts provided on the outside of the central channel 23 to form a box-shaped cavity, thereby providing structural strength at the position of the central channel 23 and facilitating force transmission. One end of the first central channel reinforcement 25 is connected to the bottom wall of the groove, which can further improve the structural strength at the groove and prevent the groove from deforming under force. Among them, there are two first central channel reinforcements 25, which are provided on the left and right sides of the bottom wall of the groove and are respectively connected to the side wall of the central channel 23 on the corresponding side.

[0036] Optionally, such as Figure 1 and Figure 4As shown, the rear assembly 30 also includes a rear crossbeam 32, which is mounted on the rear panel 31. The rear crossbeam 32 has a rear force transmission cavity 33 formed inside it. The rear crossbeam 32 includes an upper rear crossbeam 37, a middle rear crossbeam 34, and a lower rear crossbeam 35. The upper rear crossbeam 222, middle rear crossbeam 220, and lower rear crossbeam 221 all serve a reinforcing function. The upper rear crossbeam 222, middle rear crossbeam 220, and lower rear crossbeam 221 are mounted on the rear panel 21, which is a reasonable arrangement. The upper rear crossbeam 222, middle rear crossbeam 220, and lower rear crossbeam 221 are spaced apart in the vertical direction, thus avoiding interference between them.

[0037] In addition, such as Figures 2-4 As shown, the front bulkhead assembly 10 includes a front bulkhead front panel 12 and a front bulkhead rear panel 13. The front bulkhead rear panel 13 is connected to the rear side of the front bulkhead front panel 12. A front bulkhead force transmission cavity 11 is formed between the front bulkhead rear panel 13 and the front bulkhead front panel 12. The front bulkhead force transmission cavity 11 corresponds to the front end of the first central channel reinforcement member 25. The rear bulkhead central crossbeam 34 is disposed in the middle of the rear bulkhead panel 31, and the rear end of the first central channel reinforcement member 25 corresponds to the rear bulkhead central crossbeam 34. The rear bulkhead central crossbeam 34 can play a reinforcing role. By disposing of the rear bulkhead central crossbeam 34 in the middle of the rear bulkhead panel 31, the rear bulkhead central crossbeam 34 can strengthen the structural strength of the middle part of the rear bulkhead panel 31. The rear bulkhead central crossbeam 34 forms a rear bulkhead force transmission cavity 33.

[0038] In other words, a front bulkhead force transmission cavity 11 can be formed between the front bulkhead rear panel 13 and the front bulkhead front panel 12, and the front bulkhead force transmission cavity 11 corresponds to the front end of the first middle channel reinforcement 25. A middle channel force transmission cavity 21 can be formed between the first middle channel reinforcement 25 and the top of the middle channel 23. In this way, when the vehicle is hit by a collision, the collision force can be transmitted between the front bulkhead force transmission cavity 11 and the middle channel force transmission cavity 21. The rear end of the first middle channel reinforcement 25 corresponds to the rear bulkhead middle crossbeam 34, so the collision force can be transmitted through the middle channel force transmission cavity 21 to the rear bulkhead force transmission cavity 33 of the rear bulkhead middle crossbeam 34. This can realize the transmission and decomposition of the collision force, making the force distribution more uniform and avoiding large damage to the vehicle.

[0039] Of course, such as Figure 1 , Figure 2 and Figure 5As shown, the central channel reinforcement 24 also includes a second central channel reinforcement 26, which is disposed at the bottom outside the central channel 23. A central channel force transmission cavity 21 is formed between the second central channel reinforcement 26, the central channel 23, and the floor 22. By disposing the second central channel reinforcement 26 at the bottom outside the central channel 23, it can reinforce the bottom of the central channel 23, reducing the vibration intensity at the bottom of the central channel 23. Furthermore, the central channel force transmission cavity 21 formed between the second central channel reinforcement 26, the central channel 23, and the floor 22 allows the impact force to be transmitted and distributed through the central channel force transmission cavity 21, thereby making the force distribution more uniform.

[0040] In addition, such as Figures 1-4 As shown, the front bulkhead assembly 10 also includes: a lower front bulkhead plate 14, which is connected to the lower rear side of the rear front bulkhead plate 13. A front bulkhead force transmission cavity 11 is formed between the lower front bulkhead plate 14 and the rear front bulkhead plate 13. One lateral end of the front bulkhead force transmission cavity 11 corresponds to the front end of the second middle channel reinforcement member 26. A lower rear bulkhead crossbeam 35 is disposed at the lower end of the rear bulkhead plate 31, and the rear end of the second middle channel reinforcement member 26 corresponds to the lower rear bulkhead crossbeam 35. The lower rear bulkhead crossbeam 35 can play a reinforcing role. By disposing of the lower rear bulkhead crossbeam 35 at the lower end of the rear bulkhead plate 31, the lower rear bulkhead crossbeam 35 can enhance the structural strength of the lower end of the rear bulkhead plate 31. The lower rear bulkhead crossbeam 35 forms a rear bulkhead force transmission cavity 33.

[0041] In other words, a front bulkhead force transmission cavity 11 can be formed between the front lower panel 14 and the front rear panel 13, and one lateral end of the front bulkhead force transmission cavity 11 corresponds to the front end of the second middle channel reinforcement 26. A middle channel force transmission cavity 21 can be formed between the second middle channel reinforcement 26, the middle channel 23 and the floor 22. In this way, when the front end of the vehicle is hit by a collision, the collision force can be transmitted between the front bulkhead force transmission cavity 11 and the middle channel force transmission cavity 21. The rear end of the second middle channel reinforcement 26 corresponds to the rear lower crossbeam 35, so the collision force can be transmitted through the middle channel force transmission cavity 21 to the rear bulkhead force transmission cavity 33 of the rear lower crossbeam 35. This can realize the transmission and decomposition of the collision force, making the force distribution more uniform and avoiding large damage to the vehicle.

[0042] In this way, the collision force can be transmitted to the rear force transmission cavity 33 of the rear middle crossbeam 34 and the rear force transmission cavity 33 of the rear lower crossbeam 35 respectively, increasing the transmission and decomposition path of the collision force, thereby further improving the overall collision performance of the vehicle and the torsional stiffness of the body 1.

[0043] It should be noted that, as Figure 5As shown, there are two first middle channel reinforcement members 25, both of which are located at the top of the middle channel 23. The two first middle channel reinforcement members 25 are spaced apart in the horizontal direction. The front ends of the two first middle channel reinforcement members 25 correspond to the front force transmission cavity 11 located above, and the rear ends of the two first middle channel reinforcement members 25 correspond to the rear middle crossbeam 34. And / or there are two second middle channel reinforcement members 26, which are located on the horizontal sides outside the middle channel 23. The front ends of the two second middle channel reinforcement members 26 correspond to the front force transmission cavity 11 located below, and the rear ends of the two second middle channel reinforcement members 26 correspond to the rear lower crossbeam 35.

[0044] In other words, the first central channel reinforcement 25 and / or the second central channel reinforcement 26 are further configured as two, with both first central channel reinforcements 25 located at the top within the central channel 23 and spaced laterally. This avoids interference between the two first central channel reinforcements 25 and facilitates their arrangement. The front ends of both first central channel reinforcements 25 correspond to the upper front bulkhead force transmission cavity 11, and the rear ends correspond to the rear bulkhead central crossbeam 34. Thus, when the front of the vehicle is impacted, the impact force can be transmitted through the front bulkhead force transmission cavity 11 to the central channel force transmission cavities 21 formed by the two first central channel reinforcements 25, and further transmitted through the two central channel force transmission cavities 21 to the rear bulkhead force transmission cavity 33 of the rear bulkhead central crossbeam 34. This achieves the transmission and decomposition of the impact force, making the force distribution more even and preventing excessive damage to the vehicle.

[0045] Two second central channel reinforcement members 26 are positioned on the lateral sides outside the central channel 23. This avoids interference between the two second central channel reinforcement members 26 and facilitates their arrangement. The front ends of both second central channel reinforcement members 26 correspond to the front bulkhead force transmission cavity 11 located below, and the rear ends correspond to the rear bulkhead lower crossbeam 35. Thus, when the front of the vehicle is impacted, the impact force can be transmitted through the front bulkhead force transmission cavity 11 to the central channel force transmission cavities 21 formed by the two second central channel reinforcement members 26, and can continue to be transmitted through the two central channel force transmission cavities 21 to the rear bulkhead force transmission cavity 33 of the rear bulkhead lower crossbeam 35. This achieves the transmission and decomposition of the impact force, making the force distribution more even and preventing excessive damage to the vehicle.

[0046] Specifically, such as Figure 2 and Figure 6As shown, the rear crossbeam 32 also includes an upper rear crossbeam 37, which is located at the upper end of the rear panel 31. The rear reinforcement 36 includes an upper reinforcement plate 38, a main reinforcement plate 39, and a lower reinforcement plate 40. The upper reinforcement plate 38 and the lower reinforcement plate 40 are connected to the upper and lower ends of the main reinforcement plate 39. The upper reinforcement plate 38 is fixedly connected to the upper rear crossbeam 37, and the main reinforcement plate 39 is fixedly connected to the rear panel 31. The lower reinforcement plate 40 is bent forward and fixedly connected to the top of the rear end of the central channel 23. The upper rear crossbeam 37 can serve a reinforcing function. By placing the upper rear crossbeam 37 at the upper end of the rear panel 31, the upper rear crossbeam 37 can enhance the structural strength of the upper end of the rear panel 31. The upper rear crossbeam 37 forms a rear force transmission cavity 33.

[0047] The upper reinforcing plate 38 and the lower reinforcing plate 40 are connected to the upper and lower ends of the main reinforcing plate 39, thus forming a whole and facilitating the installation and setting of the rear reinforcement 36. The upper reinforcing plate 38 is fixedly connected to the upper crossbeam 37 of the rear enclosure, so that the impact force transmitted to the rear reinforcement 36 can be further transmitted to the rear force transmission cavity 33 of the upper crossbeam 37, and the cavity structure can better absorb the impact energy. The main reinforcing plate 39 is fixedly connected to the rear panel 31, so that the rear reinforcement 36 can be fixed as a whole to the rear panel 31, thereby improving the structural strength of the rear panel 31. The lower reinforcing plate 40 is bent forward and fixedly connected to the top of the rear end of the central channel 23, so that when the impact force is transmitted to the force transmission cavity 21 of the central channel, it can be further transmitted to the rear reinforcement 36, realizing the transmission and decomposition of the impact force.

[0048] According to an optional embodiment of the present invention, such as Figure 2 As shown, the rear reinforcement 36 is fixedly connected to the top rear end of the central channel 23. Furthermore, both ends of the central channel 12 are open along the length of the vehicle body 1. The front and rear ends of the central channel force transmission cavity 21 are respectively connected to the front force transmission cavity 11 and the rear force transmission cavity 33. The fixed connection between the rear reinforcement 36 and the top rear end of the central channel 23 strengthens the structural strength of the central channel 23. The open ends of the central channel 12 allow for better connection between the central channel force transmission cavity 21 and the front and rear force transmission cavities 11 and 33. Thus, the front force transmission cavity 11, the central channel force transmission cavity 21, and the rear force transmission cavity 33 together form a force transmission channel. When the vehicle is impacted, the collision force can be better transmitted and decomposed, resulting in more even force distribution and reduced stress on other parts.

[0049] In addition, such as Figure 2 and Figure 6As shown, protrusions 41 are provided on both sides of the rear reinforcement 36, and rear force transmission cavities 33 are formed within the protrusions 41. A V-shape is formed between the two protrusions 41, and the two protrusions 41 correspond to the force transmission cavities 21 of the central channel, respectively. Protrusions 243 are provided on both sides of the rear reinforcement 36, and rear force transmission cavities 33 can be formed within the protrusions 243. A V-shape is formed between the two protrusions 243. In this way, the rear force transmission cavities 33 formed by the two protrusions 243 can better correspond to the two force transmission cavities 21 of the central channel, thereby improving the transmission and decomposition of collision forces.

[0050] The vehicle according to an embodiment of the present invention includes: the vehicle body 1 described in the above embodiments.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0053] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle body, characterized in that, include: Front assembly (10), on which a laterally extending front force transmission cavity (11) is formed. Floor assembly (20), the floor assembly (20) is disposed at the rear end of the front bulkhead assembly (10), the floor assembly (20) has a longitudinally extending central channel force transmission cavity (21), the front end of the central channel force transmission cavity (21) corresponds to the front bulkhead force transmission cavity (11); The rear enclosure assembly (30) is located at the rear end of the floor assembly (20). The rear enclosure assembly (30) includes a rear enclosure plate (31) and a rear enclosure reinforcement (36). The rear enclosure reinforcement (36) is located on the front side of the rear enclosure plate (31). A rear enclosure force transmission cavity (33) is formed between the rear enclosure reinforcement (36) and the rear enclosure plate (31). The rear end of the central channel force transmission cavity (21) corresponds to the rear enclosure force transmission cavity (33). The lower end of the rear enclosure reinforcement (36) is fixedly connected to the top of the rear end of the floor assembly (20). The front force transmission cavity (11), the middle channel force transmission cavity (21), and the rear force transmission cavity (33) together form a force transmission channel; The floor assembly (20) includes: floor (22), central channel (23) and central channel reinforcement (24). The central channel (23) is disposed on the floor (22), and the central channel reinforcement (24) is disposed on the central channel (23) and forms a central channel force transmission cavity (21) between the central channel (23) and the central channel (23). The central channel reinforcement (24) includes: a first central channel reinforcement (25), which is disposed at the top of the central channel (23), and a central channel force transmission cavity (21) is formed between the first central channel reinforcement (25) and the central channel (23). The central channel reinforcement (24) further includes: a second central channel reinforcement (26), which is disposed at the bottom outside the central channel (23), and a central channel force transmission cavity (21) is formed between the second central channel reinforcement (26), the central channel (23) and the floor (22). The rear assembly (30) further includes a rear crossbeam (32), which has a rear force transmission cavity (33) inside. The rear crossbeam (32) includes an upper rear crossbeam (37), a middle rear crossbeam (34), and a lower rear crossbeam (35). The upper rear crossbeam (37) is located at the upper end of the rear panel (31), the middle rear crossbeam (34) is located at the middle of the rear panel (31), the rear end of the first middle channel reinforcement (25) corresponds to the middle rear crossbeam (34), the lower rear crossbeam (35) is located at the lower end of the rear panel (31), and the rear end of the second middle channel reinforcement (26) corresponds to the lower rear crossbeam (35).

2. The vehicle body according to claim 1, characterized in that, There are two first middle channel reinforcement members (25), and both first middle channel reinforcement members (25) are disposed at the top of the middle channel (23).

3. The vehicle body according to claim 1, characterized in that, The front bulkhead assembly (10) includes a front bulkhead front panel (12) and a front bulkhead rear panel (13). The front bulkhead rear panel (13) is connected to the rear side of the front bulkhead front panel (12). A front bulkhead force transmission cavity (11) is formed between the front bulkhead rear panel (13) and the front bulkhead front panel (12). The front bulkhead force transmission cavity (11) corresponds to the front end of the first middle channel reinforcement member (25).

4. The vehicle body according to claim 1, characterized in that, There are two second middle channel reinforcement members (26), and the two second middle channel reinforcement members (26) are disposed at the bottom outside the middle channel (23).

5. The vehicle body according to claim 3, characterized in that, The front bulkhead assembly (10) further includes: a front bulkhead lower plate (14), which is connected to the rear lower side of the front bulkhead rear plate (13), and a front bulkhead force transmission cavity (11) is formed between the front bulkhead lower plate (14) and the front bulkhead rear plate (13), and one lateral end of the front bulkhead force transmission cavity (11) corresponds to the front end of the second middle channel reinforcement (26).

6. The vehicle body according to claim 1, characterized in that, The rear reinforcement (36) is fixedly connected to the top of the rear end of the central channel (23), and both ends of the central channel (23) are open along the length direction of the vehicle body (1). The front and rear ends of the central channel force transmission cavity (21) are respectively connected to the front force transmission cavity (11) and the rear force transmission cavity (33).

7. The vehicle body according to claim 6, characterized in that, The rear reinforcement member (36) has protrusions (41) on both sides, and the rear force transmission cavity (33) is formed in the protrusion (41). A V-shape is formed between the two protrusions (41), and the two protrusions (41) correspond to the middle channel force transmission cavity (21) respectively.

8. A vehicle, characterized in that, include: The vehicle body (1) of any one of claims 1-7.

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