A vehicle body side inner panel assembly and vehicle

Abstract

The application provides a car body side wall inner plate assembly, which comprises a side wall plate, a side wall upper beam assembly, a side wall reinforcing beam assembly, a door opening sealing beam assembly and a side wall lower beam assembly; the side wall plate is provided with a door opening; the door opening sealing beam assembly is arranged around the door opening and is welded to the side wall plate near the inside of the car; the side wall upper beam assembly is welded to the side wall plate near the inside of the car and is located at the top of the side wall plate; the side wall lower beam assembly is welded to the side wall plate near the inside of the car and is located at the bottom of the side wall plate; the side wall reinforcing beam assembly is connected with the side wall upper beam assembly at one end and is connected with the side wall lower beam assembly at the other end and is welded to the side wall plate near the inside of the car. The application can solve the problems of long design period and high cost of the existing car body side wall inner plate assembly and vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle body side panel assembly technology, and particularly to a vehicle body side panel inner panel assembly and a vehicle. Background Technology

[0002] The side panel assembly is a key component of the vehicle's side structure, typically consisting of an outer side panel assembly and an inner side panel assembly, which work in conjunction with the door assembly to achieve a seal. In traditional mass production of pre-designed vehicles, the side panel assembly is generally formed by stamping the inner side panel as a single piece using a large mold, and a door opening sealing beam structure is simultaneously formed at the door opening during the stamping process.

[0003] However, this unibody molding method has significant shortcomings for small-batch production series of vehicles with various replacement and modification needs. First, developing a large mold for unibody molding is time-consuming, which lengthens the overall vehicle design cycle. Second, unibody molding molds have poor versatility; when the vehicle model undergoes minor changes (such as different door opening sizes or different reinforcing beam lengths), it is often necessary to re-mold, leading to a significant increase in costs during production, manufacturing, maintenance, and material transportation. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle body side panel assembly and vehicle to solve the problems of long design cycle and high cost of existing vehicle body side panel assemblies and vehicles.

[0005] To solve the above-mentioned technical problems, the present invention provides a vehicle body side panel assembly, including a side panel, an upper side beam assembly, a side reinforcement beam assembly, a door opening sealing beam assembly, and a lower side beam assembly; the side panel has a door opening; the door opening sealing beam assembly is wrapped around the door opening and welded to the side panel near the vehicle interior; the upper side beam assembly is welded to the side panel near the vehicle interior and located at the top of the side panel; the lower side beam assembly is welded to the side panel near the vehicle interior and located at the bottom of the side panel; one end of the side reinforcement beam assembly is connected to the upper side beam assembly, and the other end is connected to the lower side beam assembly and welded to the side panel near the vehicle interior.

[0006] Optionally, the door opening sealing beam assembly includes an outer door opening sealing beam and an inner door opening sealing beam. One end of the outer door opening sealing beam and the side of the inner door opening sealing beam near one end are respectively welded to the side panel. The side of the outer door opening sealing beam near the other end is welded to the side of the inner door opening sealing beam near the other end. The outer door opening sealing beam, the inner door opening sealing beam, and the side panel form a structural cavity.

[0007] Optionally, the door opening sealing beam assembly includes a door lock reinforcing beam disposed within the structural cavity. The side of the door lock reinforcing beam near one end is welded to the side panel, and the side near the other end is welded to the inner door opening sealing beam.

[0008] Optionally, the side panel upper crossbeam assembly includes an upper inner beam and an upper outer beam. The two ends of the upper inner beam are respectively welded to the side panel, and the upper inner beam is welded to the side of the door opening sealing outer beam near the side panel. The upper inner beam and the side panel form an installation cavity. The side of the upper outer beam near one end is welded to the door opening sealing outer beam, the middle part of the upper outer beam is welded to the upper inner beam, and the other end of the upper outer beam is a free end.

[0009] Optionally, the two ends of the side reinforcement beam assembly are respectively welded to the side panel, and the side reinforcement beam assembly and the side panel form a reinforcement cavity.

[0010] Optionally, the cross-section of the reinforcing cavity is rectangular.

[0011] Optionally, the side panel is further provided with a window opening, and the inner side panel assembly of the vehicle body also includes a window sealing beam assembly, which is welded to the side panel and is arranged around the window opening.

[0012] Optionally, the window sealing beam assembly includes a window beam body and a reinforcing member. The window beam body and the reinforcing member are arranged around the window opening. One end of the window beam body is welded to the side panel, and the other end is welded to the reinforcing member. The reinforcing member is closer to the inner side of the vehicle body side panel assembly than the window beam body.

[0013] Optionally, it also includes the side auxiliary reinforcing beam assembly, one end of which is connected to the side upper crossbeam assembly, and the other end is connected to the lower part of the side panel. The side auxiliary reinforcing beam assembly and the side reinforcing beam assembly are processed into reinforcing beams to be cut using the same set of molds, and then the reinforcing beams to be cut are cut into different lengths.

[0014] The present invention also provides a vehicle including the above-described body side panel assembly.

[0015] The present invention provides a vehicle body side panel assembly and a vehicle, which have the following beneficial effects: By breaking down the body side panel assembly into several functional modules—side panel, upper side beam assembly, side reinforcement beam assembly, door opening sealing beam assembly, and lower side beam assembly—each module is individually formed before being welded together. Compared to traditional unibody stamping, this approach offers several advantages. First, each module has smaller parts and simpler shapes, significantly reducing the complexity of the corresponding forming mold structure. This effectively lowers mold design and manufacturing costs, as well as subsequent maintenance and material transportation costs. Second, the shortened mold development cycle reduces the overall design cycle. On the other hand, this modular design significantly improves the versatility of parts: when the door opening dimensions of different models are the same, the molding mold for the door opening sealing beam assembly can be universal; when the lengths of the side reinforcement beam assemblies are different, they can also be processed into reinforcement beams to be cut using the same set of molds, and then cut into different lengths; when the lengths of the side upper crossbeam assemblies are different, they can also be processed into upper crossbeams to be cut using the same set of molds, and then cut into different lengths; when the lengths of the side lower crossbeam assemblies are different, they can also be processed into lower crossbeams to be cut using the same set of molds, and then cut into different lengths. In this way, the versatility of molding molds in different models can be improved, and development and production costs can be reduced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main view structure of the inner side panel assembly of the vehicle body in an embodiment of the present invention; Figure 2 yes Figure 1 A cross-sectional schematic diagram of the inner side panel assembly of the vehicle body along line AA; Figure 3 yes Figure 1 A cross-sectional schematic diagram of the inner side panel assembly of the vehicle body along the BB line; Figure 4 This is a schematic diagram of the main structure of the inner side panel assembly of the vehicle body in another embodiment of the present invention; Figure 5 yes Figure 4 A cross-sectional schematic diagram of the inner side panel assembly of the vehicle body along the CC line.

[0017] Explanation of reference numerals in the attached figures: 100-Side panel; 200-Upper side beam assembly; 210-Upper inner beam; 220-Upper outer beam; 300-Side reinforcement beam assembly; 400-Door opening sealing beam assembly; 410-Door opening sealing outer beam; 420-Door opening sealing inner beam; 430-Door lock reinforcement beam; 500-Lower side beam assembly; 600-Window sealing beam assembly; 610-Window beam main body; 620-Reinforcing component; 710-Structural cavity; 720-Mounting cavity; 730-Reinforcing cavity; 800-Side auxiliary reinforcement beam assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] refer to Figure 1, Figure 2 and Figure 3 , Figure 1 This is a front view structural schematic diagram of the vehicle body side panel assembly in an embodiment of the present invention. Figure 2 yes Figure 1 A cross-sectional schematic diagram of the inner side panel assembly of the vehicle body along line AA. Figure 3 yes Figure 1 A cross-sectional schematic diagram of the inner side panel assembly along the BB line is shown in this embodiment. This embodiment provides an inner side panel assembly including a side panel 100, an upper side beam assembly 200, a side reinforcing beam assembly 300, a door opening sealing beam assembly 400, and a lower side beam assembly 500. The side panel 100 has a door opening. The door opening sealing beam assembly 400 is wrapped around the door opening and welded to the side of the side panel 100 near the interior of the vehicle. The upper side beam assembly 200 is welded to the side panel 100 near the interior of the vehicle and is located at the top of the side panel 100; the lower side beam assembly 500 is welded to the side panel 100 near the interior of the vehicle and is located at the bottom of the side panel 100; one end of the side panel reinforcing beam assembly 300 is connected to the upper side beam assembly 200, and the other end is connected to the lower side beam assembly 500 and welded to the side panel 100 near the interior of the vehicle.

[0025] First, the side panel 100 is used as the basic load-bearing component, and door openings are pre-formed on it. Then, the independently prefabricated upper side beam assembly 200, side reinforcement beam assembly 300, door opening sealing beam assembly 400, and lower side beam assembly 500 are individually welded to the interior side of the side panel 100 according to their respective positional requirements. The side reinforcement beam assembly 300 is further connected to the upper beam assembly 200 and the lower beam assembly 500, thus forming a complete force transmission path from the top door frame to the bottom sill. After all components are welded, a single, multi-dimensional reinforced inner side panel assembly is formed.

[0026] By breaking down the body side panel assembly into several functional modules—side panel 100, upper side beam assembly 200, side reinforcing beam assembly 300, door opening sealing beam assembly 400, and lower side beam assembly 500—each module is individually formed before being welded together. Compared to traditional unibody stamping, this approach offers several advantages. First, each module has smaller parts and simpler shapes, significantly reducing the complexity of the corresponding forming mold structure. This effectively lowers mold design and manufacturing costs, as well as subsequent maintenance and material transportation costs. Second, the shortened mold development cycle reduces the overall design cycle. On the other hand, this modular design significantly improves the versatility of parts: when the door opening dimensions of different models are the same, the molding mold for the door opening sealing beam assembly 400 can be universal; when the lengths of the side reinforcement beam assembly 300 are different, they can also be processed into reinforcement beams to be cut using the same set of molds, and then the reinforcement beams to be cut can be cut into different lengths; when the lengths of the side upper crossbeam assembly 200 are different, they can also be processed into upper crossbeams to be cut using the same set of molds, and then the upper crossbeams to be cut can be cut into different lengths; when the lengths of the side lower crossbeam assembly 500 are different, they can also be processed into lower crossbeams to be cut using the same set of molds, and then the lower crossbeams to be cut can be cut into different lengths. In this way, the versatility of molding molds in different models can be improved, and development and production costs can be reduced.

[0027] The door opening sealing beam assembly 400 includes an outer door opening sealing beam 410 and an inner door opening sealing beam 420. One end of the outer door opening sealing beam 410 and the side of the inner door opening sealing beam 420 near one end are respectively welded to the side panel 100. The side of the outer door opening sealing beam 410 near the other end is welded to the side of the inner door opening sealing beam 420 near the other end. The outer door opening sealing beam 410, the inner door opening sealing beam 420 and the side panel 100 form a structural cavity 710.

[0028] The doorway sealing beam assembly 400 is not a single plate, but rather a combination of an outer beam 410 and an inner beam 420. During assembly, one end of the outer beam 410 and the area near one end of the inner beam 420 are welded and fixed to the side panel 100; simultaneously, the area near the other end of the outer beam 410 is welded to the area near the other end of the inner beam 420. In this way, the outer beam 410, the inner beam 420, and the side panel 100 form a closed box-shaped space, namely the structural cavity 710.

[0029] By setting an outer sealing beam 410 and an inner sealing beam 420 for the door opening, and having them form a structural cavity 710 with the side panel 100, the structural cavity 710 significantly improves the section modulus of the door opening sealing beam assembly 400. When subjected to the impact of the door closing or the torsional load of the vehicle body, this cavity structure can provide higher bending and torsional stiffness with a lighter weight, thereby enhancing the structural stability around the door opening and ensuring the accuracy of the sealing surface during long-term use.

[0030] The door opening sealing beam assembly 400 includes a door lock reinforcing beam 430, which is disposed within the structural cavity 710. The side of the door lock reinforcing beam 430 near one end is welded to the side panel 100, and the side near the other end is welded to the inner sealing beam 420. The addition of the door lock reinforcing beam 430 creates a denser force transmission network within the original structural cavity 710. When the door latch is installed in the corresponding position and bears locking force or side impact force, this reinforcing beam can effectively distribute and transfer this localized concentrated force to the side panel 100 and the inner sealing beam 420, avoiding local deformation caused by stress concentration, significantly improving the local stiffness and strength of the door lock mounting point, and thus improving the reliability and durability of door closure.

[0031] The side panel upper crossbeam assembly 200 includes an upper inner beam 210 and an upper outer beam 220. The two ends of the upper inner beam 210 are welded to the side panel 100, and the upper inner beam 210 is welded to the side of the door opening sealing outer beam 410 near the side panel 100. The upper inner beam 210 and the side panel 100 form an installation cavity 720. The side of the upper outer beam 220 near one end is welded to the door opening sealing outer beam 410, and the middle of the upper outer beam 220 is welded to the upper inner beam 210. The other end of the upper outer beam 220 is a free end. The installation cavity 720 formed by the upper inner beam 210 and the side panel 100 provides a regular space for the roof wiring harness, side curtain air module, etc., facilitating their arrangement and fixation. Simultaneously, the installation cavity 720 significantly increases the section modulus of the side panel upper crossbeam assembly 200. When subjected to impact or torsional loads, this cavity structure provides higher bending and torsional stiffness with a lighter weight, thereby enhancing the strength and rigidity of the vehicle side panel assembly. The multi-point welding of the upper outer beam 220 with the upper inner beam 210 and the door opening sealing outer beam 410 forms a cantilever-like reinforced structure, ensuring the structural strength of the roof side area and providing a supporting boundary for the installation of the headliner. Simultaneously, the free end design of the upper outer beam 220 can absorb certain assembly tolerances, reducing the stringent requirements on component precision. Furthermore, since the upper inner beam 210 and the door opening sealing outer beam 410 are welded close to the side panel 100, the strength and rigidity of the upper inner beam 210 are further enhanced. Moreover, the mounting cavity 720 is adjacent to the structural cavity 710, further enhancing the strength and rigidity of the vehicle side panel assembly.

[0032] Specifically, the upper inner beam 210 includes multiple bent segments connected in sequence, and one end of the cross-section of the upper inner beam 210 is open.

[0033] Preferably, the cross-section of the mounting cavity 720 is trapezoidal, which can enhance the strength and rigidity of the vehicle body side panel assembly.

[0034] The two ends of the side panel reinforcement beam assembly 300 are welded to the side panel 100, and the side panel reinforcement beam assembly 300 and the side panel 100 form a reinforcement cavity 730. The side panel reinforcement beam assembly 300 is not flat against the side panel 100; rather, its main body maintains a certain distance from the side panel 100, with only its two ends welded to the side panel 100, thus naturally forming a closed cavity between the beam and the panel, i.e., the reinforcement cavity 730. By forming the reinforcement cavity 730 with the beam and the side panel 100, and utilizing the bending resistance characteristics of the cavity structure, the bending and compressive strength of the side panel reinforcement beam assembly 300 is geometrically improved with only a small increase in weight. When a side collision occurs, the reinforcement cavity 730 can effectively absorb and disperse the collision energy and stably transfer the collision force from the upper crossbeam assembly 200 to the lower crossbeam assembly 500, protecting the survival space of the occupants.

[0035] The reinforcing cavity 730 has a rectangular cross-section. The rectangular cross-section is designed because, given the material thickness and cavity perimeter, it offers extremely high structural efficiency. Its straight walls distribute the material away from the neutral axis under bending loads, maximizing the material's strength potential. Furthermore, the regular rectangular cross-section is easy to manufacture through rolling or stamping, and welding positioning is more convenient, representing a good balance between strength and manufacturability.

[0036] The side panel 100, the upper side beam assembly 200, the side reinforcing beam assembly 300, the door opening sealing beam assembly 400, and the lower side beam assembly 500 are each individually molded using different molds. It is explicitly stated that each of these components is produced using its own independent mold. This means that each mold is only responsible for molding relatively simple, small parts (compared to an integrated side panel), resulting in a simpler mold structure, shorter development cycle, and lower cost. More importantly, when a component requires a design change (such as only changing the shape of the upper beam assembly 200), only the mold corresponding to that component needs modification; other molds and parts remain completely unaffected. This is extremely advantageous for small-batch, frequently updated vehicle development models.

[0037] When there are multiple door openings, and these door openings are identical, the door opening sealing beam assemblies 400 corresponding to these multiple door openings are manufactured using the same set of molds. When multiple door openings of identical dimensions exist within the same vehicle model or series (for example, the four door openings of a four-door vehicle may be identical in pairs, or the front and rear door openings of a sliding door vehicle may be identical), these identical door opening sealing beam assemblies 400 can share the same set of molds for production. This reduces the cost of a single mold through mass production, decreases the number of molds and warehousing management costs, and is a direct manifestation of modular and universal design.

[0038] In this embodiment, the door opening sealing beam assembly 400 is formed by processing the same set of molds, which includes molds for cutting, bending, welding, etc.

[0039] refer to Figure 4 and Figure 5 , Figure 4 This is a front view structural schematic diagram of the vehicle body side panel assembly in another embodiment of the present invention. Figure 5 yes Figure 4 A cross-sectional schematic diagram of the inner side panel assembly along the CC line is shown. In another embodiment, the side panel 100 also has a window opening. The inner side panel assembly further includes a window sealing beam assembly 600, which is welded to the side panel 100 and surrounds the window opening. Adding an independent window sealing beam assembly 600 to the side panel 100 and surrounding the window opening provides a dedicated, high-rigidity frame for the raising and lowering and sealing of the window glass, in addition to sealing the door opening. This allows for independent control of the window sealing strip mounting surface precision, preventing the smoothness and sealing of the window from being affected by deformation of the vehicle body. This is particularly suitable for vehicles requiring frequent window raising and lowering or those with high requirements for sound insulation and waterproofing.

[0040] In another embodiment, the window sealing beam assembly 600 includes a window beam body 610 and a reinforcing member 620. The window beam body 610 and the reinforcing member 620 are arranged around the entire window opening. One end of the window beam body 610 is welded to the side panel 100, and the other end is welded to the reinforcing member 620. The reinforcing member 620 is closer to the inner side of the vehicle body side panel assembly than the window beam body 610. The outer window beam body 610 is welded to the side panel 100, and the inner reinforcing member 620 is then welded to the window beam body 610. This double-layer structure further enhances the rigidity of the window frame. Placing the reinforcing member 620 closer to the interior of the vehicle provides a more secure mounting point for the window regulator, interior trim panels, etc., without affecting the flatness of the outer surface of the window, and also more effectively resists impact loads from door closing or side collisions.

[0041] Specifically, the main body 610 of the window beam is bent into a multi-step shape, which facilitates the installation of the sealing strip and improves the rigidity of the main body 610 of the window beam, making the window sealing beam assembly 600 less prone to deformation.

[0042] In another embodiment, the inner side panel assembly further includes a side auxiliary reinforcing beam assembly 800. One end of the side auxiliary reinforcing beam assembly 800 is connected to the upper side crossbeam assembly 200, and the other end is connected to the lower part of the side panel 100. The side auxiliary reinforcing beam assembly 800 and the side reinforcing beam assembly 300 are processed into reinforcing beams to be cut using the same set of molds, and then the reinforcing beams to be cut are cut into different lengths. When the body structure requires additional reinforcement, the side auxiliary reinforcing beam assembly 800 is added. This auxiliary beam maintains the same cross-sectional profile as the main reinforcing beam. During production, the same set of long-line forming molds (such as a roll forming line) is used to continuously produce long strip-shaped "reinforcing beams to be cut," and then they are cut to fixed lengths according to the different lengths required by the main reinforcing beam and the auxiliary reinforcing beam. This maximizes the flexibility of the molds and production line, and achieves parallel production of reinforcing beams of various lengths without increasing mold investment, further reducing the manufacturing cost of serialized models.

[0043] This embodiment also provides a vehicle including the body side panel assembly described in the above embodiments. By employing any of the aforementioned body side panel assemblies, the vehicle can flexibly adapt to various modification and replacement needs during the design phase, shortening the development cycle; during the manufacturing phase, it can reduce mold investment and production costs; and during after-sales maintenance, it offers high component interchangeability and low spare parts costs. Ultimately, this results in a higher cost-performance ratio and greater market competitiveness for the vehicle.

[0044] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A vehicle body side panel inner panel assembly, characterized in that, Including side panels, upper side beam assembly, side reinforcement beam assembly, door opening sealing beam assembly, and lower side beam assembly; The side panel is provided with a door opening; The door opening sealing beam assembly is wrapped around the entire door opening and welded to the side panel near the interior of the vehicle. The side panel upper crossbeam assembly is welded to the side of the side panel closest to the vehicle interior and is located at the top of the side panel; The lower crossbeam assembly of the side panel is welded to the side of the side panel that is closer to the interior of the vehicle and is located at the bottom of the side panel; One end of the side panel reinforcing beam assembly is connected to the upper side panel crossbeam assembly, and the other end is connected to the lower side panel crossbeam assembly, and is welded to the side of the side panel closest to the vehicle interior.

2. The vehicle body side panel assembly as described in claim 1, characterized in that, The door opening sealing beam assembly includes an outer door opening sealing beam and an inner door opening sealing beam. One end of the outer door opening sealing beam and the side of the inner door opening sealing beam near one end are respectively welded to the side panel. The side of the outer door opening sealing beam near the other end is welded to the side of the inner door opening sealing beam near the other end. The outer door opening sealing beam, the inner door opening sealing beam, and the side panel form a structural cavity.

3. The vehicle body side panel assembly as described in claim 2, characterized in that, The door opening sealing beam assembly includes a door lock reinforcing beam, which is disposed within the structural cavity. The side of the door lock reinforcing beam near one end is welded to the side panel, and the side near the other end is welded to the inner door opening sealing beam.

4. The vehicle body side panel assembly as described in claim 3, characterized in that, The side panel upper crossbeam assembly includes an upper inner beam and an upper outer beam. The two ends of the upper inner beam are respectively welded to the side panel, and the upper inner beam is welded to the side of the door opening sealing outer beam near the side panel. The upper inner beam and the side panel form an installation cavity. The side of the upper outer beam near one end is welded to the door opening sealing outer beam, the middle part of the upper outer beam is welded to the upper inner beam, and the other end of the upper outer beam is a free end.

5. The vehicle body side panel assembly as described in claim 1, characterized in that, The two ends of the side reinforcement beam assembly are respectively welded to the side panel, and the side reinforcement beam assembly and the side panel form a reinforcement cavity.

6. The vehicle body side panel assembly as described in claim 5, characterized in that, The cross-section of the reinforcing cavity is rectangular.

7. The vehicle body side panel assembly as described in claim 1, characterized in that, The side panel is also provided with a window opening, and the inner side panel assembly of the vehicle body also includes a window sealing beam assembly, which is welded to the side panel and is arranged around the window opening.

8. The vehicle body side panel assembly as described in claim 7, characterized in that, The window sealing beam assembly includes a window beam body and a reinforcing member. The window beam body and the reinforcing member are arranged around the window opening. One end of the window beam body is welded to the side panel, and the other end is welded to the reinforcing member. The reinforcing member is closer to the inner side of the vehicle body side panel assembly than the window beam body.

9. The vehicle body side panel assembly as described in claim 8, characterized in that, It also includes the side auxiliary reinforcing beam assembly, one end of which is connected to the side upper crossbeam assembly, and the other end is connected to the lower part of the side panel. The side auxiliary reinforcing beam assembly and the side reinforcing beam assembly are processed into reinforcing beams to be cut using the same set of molds, and then the reinforcing beams to be cut are cut into different lengths.

10. A vehicle, characterized in that, Includes the vehicle body side panel assembly as described in any one of claims 1-9.

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