Vehicle body cross member and vehicle

Abstract

The application relates to the technical field of a vehicle body, and provides a vehicle body cross beam and a vehicle. The vehicle body cross beam comprises a cross beam body, a middle channel reinforcing beam arranged at the top of the cross beam body, and a first seat mounting module. The middle channel reinforcing beam and the first seat mounting module are made of an extruded profile, the first seat mounting module and the middle channel reinforcing beam are lapped together through step structures matched and arranged on the two, and a connecting piece is arranged at the lapped position between the first seat mounting module and the middle channel reinforcing beam. The lapped position between the first seat mounting module and the middle channel reinforcing beam is welded together, and the connecting piece fixes the middle channel reinforcing beam and the first seat mounting module together. The application helps to improve the rigidity of the vehicle body and the stability of seat mounting, and is favorable for improving the use quality of the whole vehicle.

Description

Technical Field

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

[0002] Currently, taking the seat crossbeam at the front floor of the vehicle as an example, the seat crossbeam is usually equipped with a central channel reinforcing beam and a seat mounting module. In some designs, the central channel reinforcing beam and the seat mounting module are made of aluminum alloy profiles, and the two are often connected by MIG (Melt Inert-gas Welding) welding.

[0003] During welding, since the welding gun cannot reach the inside of the central channel reinforcement beam and the seat mounting module, the two can only be welded together after the seat mounting module is connected to the end of the central channel reinforcement beam on one side. This results in limited connection strength between the central channel reinforcement beam and the seat mounting module, making it difficult to fully utilize the material properties of the extruded profile. This restricts the improvement of body rigidity and seat installation stability, which is not conducive to improving the overall quality of the vehicle. Utility Model Content

[0004] In view of this, this application aims to propose a vehicle body crossbeam to improve the overall quality of vehicle use.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A vehicle body crossbeam includes a crossbeam body, a central channel reinforcing beam disposed on the top of the crossbeam body, and a first seat mounting module. The central channel reinforcing beam and the first seat mounting module are made of extruded profiles, and the first seat mounting module and the central channel reinforcing beam are overlapped by matching stepped structures on both, and a connector is provided at the overlap position between the first seat mounting module and the central channel reinforcing beam; The overlap between the first seat mounting module and the central channel reinforcing beam is welded together, and the connector fixes the central channel reinforcing beam and the first seat mounting module together.

[0006] Furthermore, the bottom of the first seat mounting module is provided with a first notch, and the top of the central channel reinforcing beam is provided with a second notch. The first notch and the second notch together form the central channel reinforcing beam and the stepped structure that is matched and provided on the first seat mounting module. The first seat mounting module is provided with a connection hole located in the first notch, and the middle channel reinforcing beam is provided with a connection through hole communicating with the second notch. The connector passes through the connection through hole and is connected in the connection hole.

[0007] Furthermore, the central channel reinforcing beam is provided with a reinforcing rib plate, and the second notch is located above the reinforcing rib plate; The connecting via includes a first via on the reinforcing rib plate and a second via on the bottom wall of the central channel reinforcing beam, wherein the diameter of the second via is larger than the diameter of the first via.

[0008] Furthermore, the first seat mounting module is provided with a reinforcing structure, which includes a plurality of reinforcing columns and connecting stiffeners connected to the reinforcing columns; The bottom of the reinforcing post is located within the first notch, and the connecting hole is located on the reinforcing post.

[0009] Furthermore, the bottom of the side wall of the first seat mounting module protrudes downward relative to the bottom of the reinforcing structure, and forms a communicating space below the reinforcing structure; The connecting space allows the inner cavity of the first seat mounting module to communicate with the inner cavity of the central channel reinforcing beam.

[0010] Furthermore, the first seat mounting module is connected to the end of the central channel reinforcing beam, and the first seat mounting module is connected to both ends of the central channel reinforcing beam respectively; The top of the crossbeam body is provided with a second seat mounting module corresponding to each of the first seat mounting modules. The second seat mounting module is arranged near the end of the crossbeam body and is made of extruded profile.

[0011] Furthermore, the crossbeam body is made of extruded profile, and the bottom of the crossbeam body is provided with a clearance groove, which is located below the central channel reinforcing beam.

[0012] Compared with related technologies, this application has the following advantages: (1) The vehicle body crossbeam described in this application, based on the use of extruded profiles for the central channel reinforcing beam and the first seat mounting module at the top of the crossbeam body, is connected by overlapping and welding the central channel reinforcing beam and the first seat mounting module through a matching stepped structure. At the same time, a connector is provided at the overlap position between the central channel reinforcing beam and the first seat mounting module to fix the two together. The stepped structure on the central channel reinforcing beam and the first seat mounting module can be used to increase the weld length after welding. Combined with the connecting effect of the connector, the connection strength between the central channel reinforcing beam and the first seat mounting module can be effectively increased. This helps to give full play to the material properties of the central channel reinforcing beam and the first seat mounting module made of extruded profiles, so as to increase the overall rigidity of the vehicle body crossbeam, improve the torsional rigidity of the middle of the vehicle body and the stability of the seat installation, and thus improve the overall quality of the vehicle.

[0013] (2) A first notch is provided at the bottom of the first seat mounting module, and a second notch is provided at the top of the middle channel reinforcing beam. The first and second notches form a stepped structure that matches the middle channel reinforcing beam and the first seat mounting module. The structure is simple, easy to process and form, and also facilitates a more stable connection between the middle channel reinforcing beam and the first seat mounting module. At the same time, a connecting hole is provided in the first notch on the first seat mounting module, and a connecting through hole communicating with the second notch is provided on the middle channel reinforcing beam. The connecting parts pass through the connecting through hole and are connected in the connecting hole. This facilitates the setting of the connecting parts between the middle channel reinforcing beam and the first seat mounting module, and also helps to ensure the reliability of the connection between the connecting parts between the middle channel reinforcing beam and the first seat mounting module.

[0014] (3) By setting a reinforcing rib plate in the middle channel reinforcing beam, the connecting through hole on the middle channel reinforcing beam includes a first through hole located on the reinforcing rib plate and a second through hole located on the bottom wall of the middle channel reinforcing beam. The diameter of the second through hole is also larger than that of the first through hole. This not only reduces the length of the connector and further increases the connection strength of the connector, but also further ensures the reliability of the connection between the middle channel reinforcing beam and the first seat mounting module. At the same time, the larger diameter second through hole can be used as a tool through hole, which helps to connect the connector and improves the assembly efficiency of the middle channel reinforcing beam and the first seat mounting module.

[0015] (4) By setting a reinforcing structure including reinforcing columns and connecting stiffeners in the first seat mounting module, and making the bottom of one of the reinforcing columns located in the first notch, and making the connecting hole set on the reinforcing column, it is convenient to realize the setting of the connecting hole on the first seat mounting module. It is also possible to ensure the rigidity of the location of the connecting hole by taking advantage of the large structural strength of the reinforcing column itself and the synergistic reinforcing effect of the connecting stiffener, based on the extruded profile of the first seat mounting module. This is conducive to better ensuring the connection strength between the central channel reinforcing beam and the first seat mounting module, and better realizing the double insurance effect of the connector in the connection between the central channel reinforcing beam and the first seat mounting module.

[0016] (5) The bottom of the side wall of the first seat mounting module is convex relative to the bottom of the reinforcing structure, thereby forming a connecting space below the reinforcing structure in the first seat mounting module. At the same time, the inner cavity of the first seat mounting module can be connected to the inner cavity of the central channel reinforcing beam through the connecting space. This provides a fluid passage for cleaning fluid and electrophoresis fluid during subsequent body washing, electrophoresis and draining, which facilitates the flow of cleaning fluid and electrophoresis fluid between the central channel reinforcing beam and the first seat mounting module, and helps to improve the cleaning, electrophoresis and draining effect of the body.

[0017] (6) First seat mounting modules are connected to both ends of the central channel reinforcing beam. At the same time, corresponding to each first seat mounting module, a second seat mounting module is arranged near the end of the crossbeam body on the top of the crossbeam body. The second seat mounting module is also made of extruded profile. On the one hand, with the cooperation of the corresponding first seat mounting modules and second seat mounting modules, it is convenient to realize the installation arrangement of the left and right side seats arranged side by side in the vehicle. On the other hand, the use of extruded profile for the second seat mounting module facilitates the preparation of the second seat mounting module and ensures the structural strength of the second seat mounting module. This helps to ensure the rigidity of each mounting point of the seat and is conducive to ensuring the stability of the seat installation on the vehicle body.

[0018] (7) The crossbeam body is made of extruded profile and a clearance groove is provided at the bottom of the crossbeam body below the middle channel reinforcing beam. This facilitates the preparation of the crossbeam body and helps to ensure the structural strength of the crossbeam body. At the same time, the clearance groove can also be used to strengthen the crossbeam through the middle channel reinforcing beam to ensure the overall structural strength of the body crossbeam. This also allows the body crossbeam to effectively avoid the middle channel at the front floor position when it is installed in the body, which facilitates the arrangement of the body crossbeam in the front floor of the body.

[0019] Another object of this application is to provide a vehicle whose body includes sill beams disposed on the left and right sides, and a body crossbeam as described above connecting the sill beams on both sides.

[0020] Furthermore, the inner wall of the threshold beam is provided with a insertion hole, and the end of the crossbeam body is inserted into the insertion hole and fixedly connected to the threshold beam.

[0021] Furthermore, the sill beam is made of extruded profile, and the crossbeam body is welded to the sill beam; and / or, The inner wall of the threshold beam is provided with an outwardly protruding overlapping edge, which is located below the insertion hole, and the crossbeam body overlaps on the overlapping edge.

[0022] By adopting the aforementioned body crossbeams, the vehicle described in this application can increase the rigidity of the body crossbeams, thereby improving the torsional rigidity of the middle of the vehicle body and the stability of seat installation, which is beneficial to improving the overall quality of the vehicle.

[0023] Furthermore, by setting insertion holes on the inner wall of the sill beam and inserting the end of the body beam of the vehicle body beam into the insertion holes and fixing it together with the sill beam, the connection operation between the body beam and the sill beam can be facilitated by the insertion design between the end of the body beam and the sill beam. At the same time, the connection strength between the body beam and the sill beam can be increased by inserting the end of the body beam into the sill beam, which helps to improve the rigidity of the vehicle body.

[0024] In addition, the door sill beam is made of extruded profile, which facilitates the preparation of the door sill beam, reduces the manufacturing cost of the door sill beam, and ensures the structural strength of the door sill beam itself. At the same time, it allows the door sill beam to be welded together with the crossbeam body, which facilitates the connection between the door sill beam and the body crossbeam and ensures the reliability of the connection between the door sill beam and the body crossbeam.

[0025] By setting an outwardly protruding overlapping edge on the inner wall of the sill beam, the overlapping edge is located below the insertion hole, and the crossbeam body overlaps on the overlapping edge. On the one hand, the setting of the overlapping edge facilitates the connection between the body crossbeam and the front floor panel and the sill beam. On the other hand, it can also increase the contact area between the sill beam and the body crossbeam, further increasing the reliability of the connection between the sill beam and the body crossbeam, which is conducive to improving the overall rigidity of the vehicle body. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the vehicle body crossbeam described in the embodiments of this application; Figure 2 This is a schematic diagram showing the connection between the central channel reinforcing beam and the first seat mounting module as described in an embodiment of this application; Figure 3 for Figure 2 A schematic diagram of the structure shown from the bottom view; Figure 4 for Figure 2 Cross-sectional view at position AA; Figure 5 This is a schematic diagram of the structure of the central channel reinforcing beam described in the embodiment of this application; Figure 6 This is a schematic diagram of the structure of the first seat mounting module described in an embodiment of this application; Figure 7 This is a schematic diagram of the connected space described in the embodiments of this application; Figure 8 This is a schematic diagram of the vehicle body structure described in the embodiments of this application; Figure 9 for Figure 8 A magnified view of part B in the middle section; Figure 10 This is a schematic diagram of the sill beam described in an embodiment of this application; Figure 11 for Figure 10 A magnified view of part C in the middle; Explanation of reference numerals in the attached figures: 1. Crossbeam body; 2. Central channel reinforcing beam; 3. First seat mounting module; 4. Connecting parts; 5. First seat mounting module; 6. Sill beam; 101. Clearance groove; 2a. Second notch; 200. Bottom wall; 201. Connecting through hole; 2011. First through hole; 2012. Second through hole; 202. Reinforcing rib; 3a. First notch; 3b. Gap; 300. Side wall; 301. Connecting hole; 302. Reinforcing structure; 3021. Reinforcing column; 3022. Connecting rib; 601. Insertion hole; 602. Overlap edge; s, seam; Q, connected space; t, distance between the bottom of the reinforced structure and the bottom of the side wall. Detailed Implementation

[0027] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0029] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application 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 on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0031] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0033] An embodiment of the first aspect of this application provides a vehicle body crossbeam, which is a seat mounting crossbeam located at the front floor of the vehicle body. Through its innovative structural design, the vehicle body crossbeam of this embodiment helps to improve the rigidity of the vehicle body and the stability of the seat, thereby enhancing the overall quality of the vehicle.

[0034] Among related technologies, extruded profiles, especially aluminum alloy profiles, are increasingly used in vehicle bodies due to their advantages such as ease of manufacturing and high structural strength.

[0035] Taking the seat crossbeam at the front floor of the vehicle as an example, a central channel reinforcing beam 2 and a seat mounting module connected to the central channel reinforcing beam 2 are usually installed on the seat crossbeam. In some designs, the central channel reinforcing beam 2 and the seat mounting module are made of aluminum alloy profiles.

[0036] At this time, since the middle channel reinforcing beam 2 and the seat mounting module are mostly welded using MIG (Melt Inert-gas Welding), the welding gun inside the middle channel reinforcing beam 2 and the seat mounting module cannot be reached during welding. The two can only be welded together after the seat mounting module is connected to the end of the middle channel reinforcing beam 2 on one side.

[0037] The existing welding method results in limited connection strength between the central channel reinforcing beam 2 and the seat mounting module, making it difficult to fully utilize the material properties of the extruded profile. This restricts the improvement of vehicle body rigidity and seat mounting stability, thus hindering the improvement of the overall vehicle's quality of use.

[0038] In view of this, in order to overcome the shortcomings of related technologies, the vehicle body crossbeam in this embodiment is combined with... Figures 1 to 7 As shown, the overall design includes a crossbeam body 1, a central channel reinforcing beam 2 and a first seat mounting module 3 located on top of the crossbeam body 1.

[0039] Both the central channel reinforcing beam 2 and the first seat mounting module 3 are made of extruded profiles, and the first seat mounting module 3 and the central channel reinforcing beam 2 are connected together by a stepped structure that is matched on both, and a connector 4 is provided at the overlap position between the first seat mounting module 3 and the central channel reinforcing beam 2.

[0040] At the same time, the overlap between the first seat mounting module 3 and the central channel reinforcing beam 2 is welded together, and the connector 4 also fixes the central channel reinforcing beam 2 and the first seat mounting module 3 together.

[0041] Therefore, as described above, based on the extruded profiles of the central channel reinforcing beam 2 and the first seat mounting module 3 at the top of the crossbeam body 1, the central channel reinforcing beam 2 and the first seat mounting module 3 are connected and welded together by a matching stepped structure. At the same time, a connector 4 is provided at the overlap position between the central channel reinforcing beam 2 and the first seat mounting module 3 to fix the two together. This embodiment can utilize the stepped structure on the central channel reinforcing beam 2 and the first seat mounting module 3 to increase the weld length after welding. Based on this, combined with the connecting effect of the connector 4, the connection strength between the central channel reinforcing beam 2 and the first seat mounting module 3 can be effectively increased. This helps to fully utilize the material properties of the central channel reinforcing beam 2 and the first seat mounting module 3 made of extruded profiles, thereby increasing the overall rigidity of the vehicle body crossbeam, improving the torsional rigidity of the middle of the vehicle body and the stability of the seat installation, and thus achieving the effect of improving the overall quality of the vehicle.

[0042] Based on the above overall introduction, specifically, it is worth noting that, while the central channel reinforcing beam 2 and the first seat mounting module 3 are joined together by matching stepped structures on both, and the overlap between the first seat mounting module 3 and the central channel reinforcing beam 2 is welded together, it is still combined with... Figure 2 As shown, welds are formed at each seam s on the side and top of the first seat mounting module 3 and the central channel reinforcing beam 2.

[0043] Obviously, compared to the existing method of connecting one side of the seat mounting module to the end of the central channel reinforcing beam 2 and then welding the two together, the length of the weld between the first seat mounting module 3 and the central channel reinforcing beam 2 can be increased due to the step structure on the central channel reinforcing beam 2 and the first seat mounting module 3.

[0044] Given that weld connection strength = effective cross-sectional area of ​​weld × allowable stress of material × coefficient, and assuming the allowable stress of the material and the system are generally constant, it is clear that only by increasing the effective cross-sectional area of ​​the weld can the weld connection strength be increased. Increasing the effective cross-sectional area of ​​the weld by increasing the profile wall thickness would undoubtedly lead to a significant increase in weight. Therefore, while keeping the shape and wall thickness unchanged, increasing the length of the weld can increase the connection strength of the weld between the central channel reinforcing beam 2 and the first seat mounting module 3, thereby achieving the effect of increasing the connection strength between the central channel reinforcing beam 2 and the first seat mounting module 3.

[0045] Of course, while increasing the weld length between the central channel reinforcing beam 2 and the first seat mounting module 3, this embodiment, through the setting of the connecting piece 4, can add a layer of protection to the connection between the central channel reinforcing beam 2 and the first seat mounting module 3 by means of the connecting action of the connecting piece, so that the connection strength between the central channel reinforcing beam 2 and the first seat mounting module 3 can be effectively improved through the synergy of the weld and the connecting piece 4.

[0046] Furthermore, in this embodiment, it is worth noting that, for the central channel reinforcing beam 2 and the first seat mounting module 3, which are made of extruded profiles, in specific implementations, the central channel reinforcing beam 2 and the first seat mounting module 3 can, for example, be made of aluminum alloy profiles (such as 6082). However, in other embodiments, it is also possible to use magnesium alloy profiles for the central channel reinforcing beam 2 and the first seat mounting module 3. But considering factors such as cost, it is preferable to use aluminum alloy profiles for the central channel reinforcing beam 2 and the first seat mounting module 3.

[0047] In this embodiment, it is still by Figure 2 and Figure 3 and continue to combine Figure 5 and Figure 6 As shown, in some exemplary embodiments, for example, a first notch 3a may be provided at the bottom of the first seat mounting module 3, and a second notch 2a may be provided at the top of the central channel reinforcing beam 2. The second notch 2a is located at the end of the central channel reinforcing beam 2, and the first notch 3a and the second notch 2a form a stepped structure that is matched on the central channel reinforcing beam 2 and the first seat mounting module 3.

[0048] In addition, based on the above-mentioned first notch 3a and second notch 2a, a connecting hole 301 located in the first notch 3a can be further provided on the first seat mounting module 3, and a connecting through hole 201 communicating with the second notch 2a can be provided on the central channel reinforcing beam 2. The above-mentioned connector 4 passes through the connecting through hole 201 and is connected in the connecting hole 301.

[0049] Thus, it can be understood that by setting a first notch 3a at the bottom of the first seat mounting module 3 and a second notch 2a at the top of the central channel reinforcing beam 2, and forming a stepped structure that matches the central channel reinforcing beam 2 and the first seat mounting module 3 by the first notch 3a and the second notch 2a, it has the advantages of simple structure and easy processing and forming, and at the same time, it is also convenient to make the central channel reinforcing beam 2 and the first seat mounting module 3 more stably connected together.

[0050] Meanwhile, by providing a connecting hole 301 located in the first notch 3a on the first seat mounting module 3, and a connecting through hole 201 communicating with the second notch 2a on the central channel reinforcing beam 2, and by allowing the connector 4 to pass through the connecting through hole 201 and connect in the connecting hole 301, this embodiment can also facilitate the setting of the connector 4 between the central channel reinforcing beam 2 and the first seat mounting module 3. Furthermore, by using the connector 4 to be fixed in the first seat mounting module 3, it is clear that it also helps to ensure the reliability of the connection between the connector 4 and the central channel reinforcing beam 2 and the first seat mounting module 3.

[0051] In specific implementation, it is worth noting that, as a preferred embodiment, the aforementioned connecting hole 301 can be, for example, a threaded hole provided on the first seat mounting module 3, and correspondingly, the aforementioned connecting member 4 can be a bolt. This allows the connecting member 4 to adopt a threaded connection structure, which also has advantages such as simple structure, convenient connection operation, and guaranteed connection reliability.

[0052] In this embodiment, please refer to Figure 5 As shown, in some exemplary embodiments, the central channel reinforcing beam 2 is made of extruded profile, and a reinforcing rib plate 202 may be provided inside the central channel reinforcing beam 2, which extends along the length direction of the central channel reinforcing beam 2, and the second notch 2a is located above the reinforcing rib plate 202.

[0053] Meanwhile, based on the reinforcing rib plate 202 provided in the central channel reinforcing beam 2, the above-mentioned connecting through hole 201 also specifically includes a first through hole 2011 provided on the reinforcing rib plate 202 and a second through hole 2012 provided on the bottom wall 200 of the central channel reinforcing beam 2. In addition, in the design, the diameter of the second through hole 2012 is larger than the diameter of the first through hole 2011.

[0054] Therefore, by providing a reinforcing rib plate 202 inside the central channel reinforcing beam 2, the connecting through hole 201 on the central channel reinforcing beam 2 includes a first through hole 2011 located on the reinforcing rib plate 202 and a second through hole 2012 located on the bottom wall 200 of the central channel reinforcing beam 2, and also makes the diameter of the second through hole 2012 larger than that of the first through hole 2011. It can be understood that, combined with... Figure 4As shown, compared to the design where one end of the connector 4 (using bolts) is located outside the bottom wall 200, this embodiment can not only reduce the length of the connector 4, but also further increase the connection strength of the connector 4, thereby further ensuring the reliability of the connection between the central channel reinforcing beam 2 and the first seat mounting module 3.

[0055] Meanwhile, since the diameter of the second through hole 2012 on the bottom wall 200 is larger than that of the first through hole 2011, this embodiment can obviously also use the larger diameter second through hole 2012 as a tool through hole. When connecting the connector 4, tools such as socket wrenches can enter the interior of the central channel reinforcing beam 2, which helps to connect the connector 4 and improves the assembly efficiency of the central channel reinforcing beam 2 and the first seat mounting module 3.

[0056] In specific implementation, it is worth noting that the diameter of the first through hole 2011 on the reinforcing rib plate 202 is set according to the outer diameter of the connecting part of the connector 4. As long as the connecting part of the connector 4 can pass through smoothly and one end of the connector 4 can be locked on one side of the reinforcing rib plate 202, it is acceptable.

[0057] For the second through hole 2012 set on the bottom wall 200, its diameter can be set according to the outer diameter of the tool such as the socket wrench used. And while meeting the requirements for tool use, the diameter of the second through hole 2012 should generally be reduced as much as possible to reduce the adverse effects on the structural strength of the central channel reinforcing beam 2.

[0058] In this embodiment, we continue to combine Figure 6 and Figure 7 As shown, in some exemplary embodiments, the first seat mounting module 3 is also based on an extruded profile, and a reinforcing structure 302 may be provided within the first seat mounting module 3, for example.

[0059] The reinforcing structure 302 includes several reinforcing columns 3021 and connecting stiffeners 3022 connected to the reinforcing columns 3021. The bottom of one of the reinforcing columns 3021 is located in the first notch 3a, and the connecting hole 301 is provided on the reinforcing column 3021.

[0060] At this time, by setting a reinforcing structure 302 including a reinforcing column 3021 and a connecting stiffener 3022 in the first seat mounting module 3, and making the bottom of one of the reinforcing columns 3021 located in the first notch 3a, and making the connecting hole 301 set on the reinforcing column 3021, it can be understood that it can not only make use of the structural characteristics of the reinforcing column 3021 to facilitate the setting of the connecting hole 301 on the first seat mounting module 3, but also, based on the use of extruded profiles in the first seat mounting module 3, utilize the large structural strength of the reinforcing column 3021 itself, and with the help of the synergistic reinforcing effect of the connecting stiffener 3022, ensure the rigidity of the location of the connecting hole 301, which is conducive to better ensuring the connection strength between the central channel reinforcing beam 2 and the first seat mounting module 3, and better realizing the double insurance effect of the connector 4 in the connection between the central channel reinforcing beam 2 and the first seat mounting module 3.

[0061] In specific implementation, it is worth noting that, based on the setting of the reinforcing column 3021 in the reinforcing structure 302, in addition to setting the required connection hole 301 on one of the reinforcing columns 3021, since the first seat mounting module 3 is used to install the vehicle seat, those skilled in the art can also choose to set the seat mounting hole on one of the reinforcing columns 3021 so as to achieve the installation and arrangement of the vehicle seat through bolts and other structures.

[0062] Understandably, when using the reinforcing post 3021 as the basis for setting the vehicle seat mounting holes, to ensure the reliability of the vehicle seat installation, the vehicle seat mounting holes should generally be set on the reinforcing post 3021 that is not located within the first notch 2a at the bottom. This results in the connecting hole 301 and the vehicle seat mounting holes being distributed on different reinforcing posts 3021.

[0063] Furthermore, based on satisfying the connection of connector 4 and the installation of vehicle seats, the number of reinforcing columns 3021 in the reinforcing structure 302, the number of connecting stiffeners 3022 connected to the reinforcing columns 3021, and of course the arrangement of each reinforcing column 3021 and each connecting stiffener 3022 in the first seat installation module 3, can all be determined according to specific design needs such as structural strength and material cost, and there are no restrictions on them.

[0064] In this embodiment, combined with Figure 6 and Figure 7As shown, based on the aforementioned reinforcement structure 302 located within the first seat mounting module 3, in some exemplary embodiments, for example, the bottom of the side wall 300 of the first seat mounting module 3 may protrude downward relative to the bottom of the reinforcement structure 302, thereby forming a communicating space Q below the reinforcement structure 302. This communicating space Q then connects the inner cavity of the first seat mounting module 3 with the inner cavity of the central channel reinforcement beam 2 after the central channel reinforcement beam 2 is connected.

[0065] By making the bottom of the side wall 300 of the first seat mounting module 3 protrude downward relative to the bottom of the reinforcing structure 302, a communicating space Q is formed below the reinforcing structure 302 within the first seat mounting module 3. At the same time, the inner cavity of the first seat mounting module 3 can communicate with the inner cavity of the central channel reinforcing beam 2 through the communicating space Q. It can be understood that this embodiment can provide a fluid passage for cleaning fluid and electrophoresis fluid during subsequent vehicle body washing, electrophoresis, and draining, which facilitates the flow of cleaning fluid and electrophoresis fluid between the central channel reinforcing beam 2 and the first seat mounting module 3, thus helping to improve the washing, electrophoresis, and draining effects of the vehicle body.

[0066] In specific implementation, based on the aforementioned connecting space Q formed at the bottom of the first seat mounting module 3, the downward protrusion t of the bottom of the side wall 300 of the first seat mounting module 3 relative to the bottom of the reinforcing structure 302 can generally be set according to the thickness of the bottom wall 200 of the central channel reinforcing beam 2. That is, the downward protrusion t of the bottom of the side wall 300 of the first seat mounting module 3 is slightly greater than the thickness of the bottom wall 200 of the central channel reinforcing beam 2, so as to ensure that the inner cavity of the central channel reinforcing beam 2 and the inner cavity of the first seat mounting module 3 can be connected through the connecting space Q.

[0067] In this embodiment, it remains the same. Figures 1 to 3 As shown, in some exemplary embodiments, as mentioned above, the first seat mounting module 3 is specifically connected to the end of the central channel reinforcing beam 2, and the first seat mounting module 3 is connected to both ends of the central channel reinforcing beam 2 respectively.

[0068] Meanwhile, in this embodiment, a second seat mounting module 5 may also be provided on the top of the crossbeam body 1 corresponding to each of the first seat mounting modules 3. Each second seat mounting module 5 is arranged near the end of the crossbeam body 1, and each second seat mounting module 5 is also made of extruded profile.

[0069] At this time, by connecting and setting the first seat mounting modules 3 at both ends of the central channel reinforcing beam 2, and corresponding to each first seat mounting module 3, a second seat mounting module 5 is set on the top of the crossbeam body 1 near the end of the crossbeam body 1, and the second seat mounting module 5 is also made of extruded profile, it can be understood that this embodiment can facilitate the installation and arrangement of the left and right side seats arranged side by side in the vehicle with the cooperation of the corresponding first seat mounting modules 3 and second seat mounting modules 5.

[0070] On the other hand, this embodiment utilizes extruded profiles for the second seat mounting module 5, which facilitates the preparation of the second seat mounting module 5 and ensures the structural strength of the second seat mounting module 5. This helps to ensure the rigidity of each mounting point of the vehicle seat and is beneficial to ensuring the stability of the vehicle seat when mounted on the vehicle body.

[0071] In specific implementation, it is worth noting that, given that the second seat mounting module 5 also uses extruded profiles, preferably, the second seat mounting module 5 can also use aluminum alloy profiles. At the same time, in terms of structure, the second seat mounting module 5 can be basically the same as the first seat mounting module 3, except that the second seat mounting module 5 does not need to be provided with the first notch 3a and the connecting hole 301.

[0072] In this embodiment, please continue to refer to... Figure 1 As shown, in some exemplary embodiments, the beam body 1 may also be made of extruded profile, and a clearance groove 101 may be provided at the bottom of the beam body 1, which is specifically located below the central channel reinforcing beam 2.

[0073] Therefore, by using an extruded profile for the beam body 1 and providing a clearance groove 101 at the bottom of the beam body 1 located below the central channel reinforcing beam 2, this embodiment can obviously facilitate the preparation of the beam body 1 and help ensure the structural strength of the beam body 1.

[0074] By utilizing the aforementioned avoidance groove 101, this embodiment can strengthen the vehicle body beam through the central channel reinforcing beam 2, ensuring the overall structural strength of the vehicle body beam while allowing the vehicle body beam to effectively avoid the central channel at the front floor position when it is installed in the vehicle body, thus facilitating the arrangement of the vehicle body beam in the front floor of the vehicle body.

[0075] In specific implementation, it is worth noting that the crossbeam body 1 using extruded profiles can preferably also be made of aluminum alloy profiles. Meanwhile, the aforementioned clearance groove 101 can be provided through the width direction of the crossbeam body 1, and the length of the clearance groove 101 in the length direction of the crossbeam body 1 can be set according to the size of the central passage in the front floor of the vehicle body that needs to be cleared.

[0076] It is worth noting that, regarding the vehicle body crossbeam of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still made of... Figures 1 to 7 As shown, it may include, for example, a crossbeam body 1, and a central channel reinforcing beam 2, a first seat mounting module 3, and a second seat mounting module 5 disposed on the top of the crossbeam body 1.

[0077] Among them, the crossbeam body 1, the central channel reinforcing beam 2, the first seat mounting module 3 and the second seat mounting module 5 are all made of extruded profiles. At the same time, the two ends of the central channel reinforcing beam 2 are provided with the first seat mounting module 5, and the second seat mounting module 5 is also provided for each of the first seat mounting modules 3.

[0078] Each of the first seat mounting modules 3 and the central channel reinforcing beam 2 is connected together by a stepped structure that is matched on both. A connector 4 is provided at the overlap position between the first seat mounting module 3 and the central channel reinforcing beam 2. The overlap position between the first seat mounting module 3 and the central channel reinforcing beam 2 is welded together, and the connector 4 fixes the central channel reinforcing beam 2 and the first seat mounting module 3 together.

[0079] Furthermore, the bottom of the first seat mounting module 3 is provided with a first notch 3a, and the top of the central channel reinforcing beam 2 is provided with a second notch 2a. The first notch 3a and the second notch 2a form a stepped structure that matches the central channel reinforcing beam 2 and the first seat mounting module 3. At the same time, the first seat mounting module 3 is provided with a connecting hole 301 located in the first notch 3a, and the central channel reinforcing beam 2 is provided with a connecting through hole 201 communicating with the second notch 2a. The connector 4 passes through the connecting through hole 201 and is fixed in the connecting hole 301.

[0080] In the preferred embodiment of the vehicle body crossbeam described above, the specific configuration and arrangement of the crossbeam body 1, the central channel reinforcing beam 2, and each seat mounting module can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the crossbeam body 1, the central channel reinforcing beam 2, and each seat mounting module can also be referred to the descriptions in the above exemplary embodiments.

[0081] In addition, taking the above preferred embodiment as an example, in specific implementation, the central channel reinforcing beam 2 and the first seat mounting module 3 connected to the crossbeam body 1, as well as the second seat mounting module 5 and the crossbeam body 1, can all be connected by welding, and specifically, MIG welding can be used.

[0082] The vehicle body crossbeam of this embodiment adopts the above design. By increasing the weld length between the central channel reinforcing beam 2 and the first seat mounting module 3 after welding, and in conjunction with the connecting part 4 between the two, the connection strength between the central channel reinforcing beam 2 and the first seat mounting module 3 is effectively increased. This helps to fully utilize the material properties of the central channel reinforcing beam 2 and the first seat mounting module 3, which are made of extruded profiles. It can increase the overall rigidity of the vehicle body crossbeam, improve the torsional rigidity of the middle of the vehicle body and the stability of the seat installation, and thus improve the overall quality of the vehicle.

[0083] An embodiment of the second aspect of this application provides a vehicle, continuing in conjunction with... Figures 8 to 11 As shown, the vehicle body includes sill beams 6 on the left and right sides, and a body crossbeam as described in the first aspect embodiment above, which connects the two sill beams 6.

[0084] Specifically, in some exemplary embodiments of this embodiment, for example, a insertion hole 601 may be provided on the inner wall of the threshold beam 6, so that the end of the crossbeam body 1 is inserted into the insertion hole 601 and fixedly connected to the threshold beam 6.

[0085] Therefore, by providing a plug hole 601 on the inner wall of the sill beam 6, and by inserting the end of the crossbeam body 1 in the vehicle body crossbeam into the plug hole 601 and fixing it together with the sill beam 6, it can be understood that this embodiment can not only utilize the plug-in design between the end of the crossbeam body 1 and the sill beam 6, but also facilitate the connection operation between the vehicle body crossbeam and the sill beam 6.

[0086] At the same time, this embodiment can obviously also increase the connection strength between the vehicle body crossbeam and the sill beam 6 by inserting the end of the crossbeam body 1 into the sill beam 6, which helps to improve the rigidity of the vehicle body.

[0087] Based on the insertion arrangement of the crossbeam body 1 within the insertion hole 601 on the sill beam 6, in this embodiment, refer to... Figure 10 As shown, in some exemplary embodiments, the sill beam 6 may be made of an extruded profile, and the crossbeam body 1 is also welded to the sill beam 6 after insertion.

[0088] In specific implementation, the sill beam 6, which uses extruded profiles, can preferably also be made of aluminum alloy profiles, and the crossbeam body 1 and the sill beam 6 can be connected by MIG welding, for example.

[0089] By using extruded profiles for the sill beam 6, this embodiment facilitates its fabrication, reduces manufacturing costs, and ensures structural strength. Furthermore, welding the sill beam 6 to the crossbeam body 1 facilitates the connection between the sill beam 6 and the vehicle body crossbeam, and also helps ensure the reliability of this connection.

[0090] Continue to refer to Figure 9 and Figure 11 As shown, in some exemplary embodiments of this embodiment, in addition to providing the insertion hole 601, the inner wall of the threshold beam 6 may also be provided with an outwardly protruding overlapping edge 602, which is located below the insertion hole 601, and the crossbeam body 1 overlaps on the overlapping edge 602.

[0091] At this time, by setting an outwardly protruding overlapping edge 602 on the inner wall of the sill beam 6, the overlapping edge 602 is located below the insertion hole 601, and the crossbeam body 1 overlaps on the overlapping edge 602. It can be understood that, on the one hand, the setting of the overlapping edge 602 can facilitate the connection between the vehicle body crossbeam and the front floor panel and the sill beam 6. On the other hand, by increasing the contact area between the sill beam 6 and the vehicle body crossbeam, the reliability of the connection between the sill beam 6 and the vehicle body crossbeam can be further increased, which is conducive to improving the overall rigidity of the vehicle body.

[0092] In practical implementation, it is worth noting that, since the sill beam 6 is made of extruded profile, the aforementioned overlapping edge 602 can be integrally formed on its inner wall during the preparation of the sill beam 6. As for the aforementioned insertion hole 601, it can be formed by machining after the sill beam 6 is extruded, and the cross-sectional shape of the insertion hole 601 can be determined according to the cross-sectional shape of the end of the crossbeam body 1.

[0093] In addition, as Figure 8 As shown, it is worth noting that two body beams arranged at intervals front and rear can generally be connected between the two side door sill beams 6, so that the vehicle seat can be installed on the vehicle body together through the seat mounting modules on the two body beams.

[0094] When two body beams are provided, the two body beams can be structurally identical. However, in addition to being structurally identical, it is also possible to make the two body beams arranged in the front and rear slightly different in structure. Specifically, for example, the width of the body 1 of the two body beams can be different to meet the arrangement requirements of each body beam at the front floor position of the vehicle body, which is also more conducive to cost control.

[0095] The vehicle in this embodiment, by adopting the aforementioned body crossbeam, can increase the rigidity of the body crossbeam, improve the torsional rigidity of the middle of the body and the stability of the seat installation, which is beneficial to improving the overall quality of the vehicle and thus has good practicality.

[0096] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A vehicle body crossbeam, characterized in that: It includes a crossbeam body (1), a central channel reinforcing beam (2) and a first seat mounting module (3) located on the top of the crossbeam body (1); The central channel reinforcing beam (2) and the first seat mounting module (3) are made of extruded profiles, and the first seat mounting module (3) and the central channel reinforcing beam (2) are connected together by matching stepped structures on both, and a connector (4) is provided at the overlap position between the first seat mounting module (3) and the central channel reinforcing beam (2). The first seat mounting module (3) and the middle channel reinforcing beam (2) are welded together at the overlapping position, and the connector (4) fixes the middle channel reinforcing beam (2) and the first seat mounting module (3) together.

2. The vehicle body crossbeam according to claim 1, characterized in that: The bottom of the first seat mounting module (3) is provided with a first notch (3a), and the top of the middle channel reinforcing beam (2) is provided with a second notch (2a). The first notch (3a) and the second notch (2a) form the middle channel reinforcing beam (2) and the step structure matched on the first seat mounting module (3). The first seat mounting module (3) is provided with a connection hole (301) located in the first notch (3a), and the middle channel reinforcing beam (2) is provided with a connection through hole (201) communicating with the second notch (2a). The connector (4) passes through the connection through hole (201) and is connected in the connection hole (301).

3. The vehicle body crossbeam according to claim 2, characterized in that: The central channel reinforcing beam (2) is provided with a reinforcing rib plate (202), and the second notch (2a) is located above the reinforcing rib plate (202); The connecting via (201) includes a first via (2011) provided on the reinforcing rib plate (202) and a second via (2012) provided on the bottom wall (200) of the middle channel reinforcing beam (2), and the diameter of the second via (2012) is larger than the diameter of the first via (2011).

4. The vehicle body crossbeam according to claim 3, characterized in that: The first seat mounting module (3) is provided with a reinforcing structure (302), which includes a plurality of reinforcing columns (3021) and a connecting rib plate (3022) connected to the reinforcing columns (3021). The bottom of the reinforcing post (3021) is located within the first notch (3a), and the connecting hole (301) is provided on the reinforcing post (3021).

5. The vehicle body crossbeam according to claim 4, characterized in that: The bottom of the side wall (300) of the first seat mounting module (3) protrudes downward relative to the bottom of the reinforcing structure (302), and a communicating space (Q) is formed below the reinforcing structure (302). The connecting space (Q) allows the inner cavity of the first seat mounting module (3) to communicate with the inner cavity of the central channel reinforcing beam (2).

6. The vehicle body crossbeam according to claim 1, characterized in that: The first seat mounting module (3) is connected to the end of the central channel reinforcing beam (2), and the first seat mounting module (3) is connected to both ends of the central channel reinforcing beam (2). The top of the crossbeam body (1) is provided with a second seat mounting module (5) corresponding to each of the first seat mounting modules (3). The second seat mounting module (5) is arranged near the end of the crossbeam body (1), and the second seat mounting module (5) is made of extruded profile.

7. The vehicle body crossbeam according to any one of claims 1 to 6, characterized in that: The crossbeam body (1) is made of extruded profile, and the bottom of the crossbeam body (1) is provided with a relief groove (101), which is located below the middle channel reinforcing beam (2).

8. A vehicle, characterized in that: The vehicle body includes sill beams (6) on the left and right sides, and a body crossbeam of any one of claims 1 to 7 connecting the sill beams (6) on both sides.

9. The vehicle according to claim 8, characterized in that: The inner wall of the threshold beam (6) is provided with a plug hole (601), and the end of the crossbeam body (1) is inserted into the plug hole (601) and fixed together with the threshold beam (6).

10. The vehicle according to claim 9, characterized in that: The threshold beam (6) is made of extruded profile, and the crossbeam body (1) is welded to the threshold beam (6); and / or, The inner wall of the threshold beam (6) is provided with an outwardly protruding overlapping edge (602), the overlapping edge (602) is located below the insertion hole (601), and the crossbeam body (1) overlaps on the overlapping edge (602).

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