Side wall upper beam and vehicle

Abstract

The application relates to the technical field of vehicle bodies, and provides a side wall upper edge beam and a vehicle. The side wall upper edge beam comprises an edge beam body formed by sequentially connecting a plurality of segments, and a connecting core pipe arranged between two adjacent segments. The edge beam body and the connecting core pipe are both formed by stretch bending of a metal pipe profile; the front half and the rear half of the connecting core pipe are respectively inserted into the inner cavities of the two adjacent segments and are respectively riveted and fixedly connected with the outer walls of the two segments. The side wall upper edge beam has the advantages that the edge beam body and the connecting core pipe are both formed by stretch bending of a metal pipe profile, the excellent structural performance of the beam body is guaranteed, the connecting core pipe and the segments are fixedly connected through a riveting structure, the connection is stable, the edge beam body is arranged through the top of the side wall in the front-rear direction of the vehicle, a stable beam body foundation is provided for the lap joint and fixed connection of the A column, the B column, the C column in the side wall framework and each cross beam at the top of the vehicle, and the overall structural performance and the force transmission effect of the top of the side wall framework are improved.

Description

Technical Field

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

[0002] The upper side beam is located at the top of the side assembly and the side edge of the roof. It is a beam structure that connects and is shared by the side frame and the roof frame. Therefore, the structural strength of the upper side beam itself has an important impact on the overall structure of the vehicle side and the vehicle roof.

[0003] The side upper beam of traditional car models is generally made up of multiple sheet metal parts and their reinforcing plates distributed at the top of the A-pillar, B-pillar and C-pillar. The welding is complicated, the assembly operation is labor-intensive, and the overall weight is relatively heavy. Utility Model Content

[0004] In view of this, this application proposes a side panel upper beam, which aims to provide a stable beam foundation for the overlapping and fixing of each column in the side panel frame and each crossbeam on the vehicle roof.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A side panel upper edge beam includes an edge beam body formed by connecting multiple segments in sequence, and a connecting core tube disposed between two adjacent segments; both the edge beam body and the connecting core tube are made of bent metal tubular profiles; the front half and the rear half of the connecting core tube are respectively inserted into the inner cavity of the two adjacent segments, and respectively riveted and fixed to the outer wall of the two segments.

[0006] Furthermore, the cross-section of the outer wall is an irregular polygon, and the cross-sectional shape of the connecting core tube follows the cross-sectional shape of the inner cavity.

[0007] Furthermore, the portion of the inner cavity not into which the connecting core tube is inserted is provided with supporting ribs, which divide the inner cavity into multiple sub-cavities.

[0008] Furthermore, the inner cavity is provided with multiple supporting ribs, each of which extends outward from the center of the inner cavity toward the surrounding outer wall and connects to the bending part of the outer wall.

[0009] Furthermore, the cross-section of the outer wall is an irregular heptagon, there are three supporting ribs, and the bending portions connected by each supporting rib are not adjacent.

[0010] Furthermore, the side beam body is formed by connecting the front section and the rear section of the side beam, and the connection point between the front section and the rear section of the side beam is located between the B-column and the C-column in the side frame.

[0011] Furthermore, the connecting core tube and the segment are fixed together by multiple blind rivets, and each blind rivet is distributed on multiple sides of the outer wall.

[0012] Furthermore, two adjacent segments are joined together and welded together.

[0013] Furthermore, the outer edge of the end face of the segment is chamfered, and when two adjacent segments abut together, a V-shaped notch for welding is formed at the chamfer of the two segments.

[0014] Compared with related technologies, this application has the following advantages: (1) The side upper beam of this application adopts a segmented design, and the various segments of the side beam body are connected by connecting core tubes to form a beam structure that runs through the front and rear directions of the vehicle at the top of the side wall. The side beam body and the connecting core tube are both made of metal tubular profiles by bending, which ensures the excellent structural performance of the beam itself. The connecting core tube and the segments are fixed by riveting structure, which ensures the connection stability of the connection parts between the segments. When the side beam body adopts the tubular profile bending process, the side upper beam can adapt to the rich curve shape needs of the top of the vehicle side frame, thus providing a stable beam foundation for the overlapping and fixed connection of the A-pillar, B-pillar, C-pillar and other columns in the side frame as well as the various crossbeams on the top of the vehicle, which is conducive to improving the overall structural performance and force transmission effect of the top of the side frame.

[0015] (2) If the cross-section of the side beam body is set to an irregular polygonal shape, the outer wall of the side beam body will have sides facing multiple directions, which can well adapt to the overlapping assembly needs of the beam and the reinforcing plate located at the top and the outer side; the cross-sectional shape of the connecting core tube is designed to fit the connecting core tube tightly into the inner cavity of the side beam body, realizing the tight embedding connection between the connecting core tube and each segment of the side beam body. Combined with the riveting between the connecting core tube and the outer wall, the connection reliability between each segment can be further improved.

[0016] (3) Based on the need for inserting the connecting core tube, the part of the inner cavity where the connecting core tube needs to be inserted should not be provided with support ribs; providing support ribs in other parts and dividing the inner cavity into multiple sub-cavities can further improve the structural performance of the side beam body, thereby improving the compressive and bending resistance of the side beam body.

[0017] (4) Multiple support ribs are set in the inner cavity in a divergent distribution pattern, and the ends of the support ribs are connected to the bending parts of the outer wall, that is, the corners of the irregular polygons. Then the support ribs and the various sides of the outer wall can construct multiple triangular or irregular quadrilateral cavity structures, which can further improve the structural strength of the side beam.

[0018] (5) The cross-section of the outer wall is designed as an irregular heptagon shape, which not only provides enough sides for the side frame and the crossbeam of the vehicle roof to overlap, but also sets up a chamfer-like side between the sides for overlapping; and the number of seven sides is moderate, which is also convenient for the processing and manufacturing of the side beam body.

[0019] (6) The side beam body adopts a two-section design, which avoids the increase in connection and assembly caused by too many sections. Moreover, the separate bending and forming design of the front and rear sections of the side beam can well meet the overall length and trend requirements of the top of the side frame. The connection between the front and rear sections of the side beam is set between the B and C columns, which is central and avoids the position with high structural strength requirements. This is conducive to ensuring the structural reinforcement effect of the side beam in the entire side frame.

[0020] (7) The core tube and the segment are fixed together by multiple blind rivets, which ensures the reliability of the riveting. The multiple blind rivets are distributed on different sides of the outer wall to avoid the blind rivets being too concentrated, which is conducive to further improving the reliability of the riveting connection between adjacent segments.

[0021] (8) By joining two adjacent segments together on the basis of riveting and connecting them by welding methods such as laser welding, the strength of the connection between the segments is further improved.

[0022] (9) By setting a chamfer on the outer edge of the end face of the segment, when two adjacent segments abut together, the chamfer part forms a V-shaped notch on the circumference of the side beam body, which becomes the most suitable position for setting the weld bead. Welding at this position is beneficial to improving the reliability of the welding.

[0023] Another object of this application is to provide a vehicle that adopts the side upper beam described in this application. The vehicle of this application has the technical advantages of the aforementioned side upper beam. Attached Figure Description

[0024] 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. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this application. In the accompanying drawings: Figure 1 This is a structural schematic diagram of the upper side beam of the side wall as described in the embodiment of this application, viewed from the rear side of the vehicle. Figure 2 for Figure 1 A structural schematic diagram of the upper side beam shown from another perspective; Figure 3 for Figure 2 A magnified view of the area shown in section A; Figure 4 for Figure 3 Exploded views of the components shown; Figure 5 for Figure 4 A structural schematic diagram of the rear section of the side beam from another perspective; Figure 6 This is a front view of the upper side beam described in the embodiment of this application; Figure 7 for Figure 6 A magnified view of the area shown in section B; Figure 8 for Figure 7 Cross-sectional view of the part shown in CC; Figure 9 for Figure 7 A schematic diagram of the cross-sectional structure of the part shown in DD; Figure 10 for Figure 7 A schematic diagram of the cross-sectional structure of the part shown in EE; Figure 11 This is a schematic diagram of the overall structure of the vehicle frame described in the embodiments of this application; Figure 12 This is a schematic diagram of the vehicle frame structure described in this application embodiment after the top and side panels have been removed.

[0025] Explanation of reference numerals in the attached figures: 1. Side beam body; 10. Inner cavity; 11. Front section of side beam; 12. Rear section of side beam; 13. Connecting core tube; 14. Blind rivet; 15. V-shaped notch; 100. Cavity division; 101. Outer wall; 102. Supporting rib; 103. Bending part; 2. Column A; 3. Column B; 4. Column C; 5. Column D; 6. Wheel arch reinforcement beam; 7. Front windshield crossbeam; 8. Roof frame; 81. Front crossbeam of roof; 82. Middle crossbeam of roof; 83. Rear crossbeam of roof; 9. Rear frame; 91. Rear crossbeam of luggage compartment; 92. Partition crossbeam. Detailed Implementation

[0026] 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.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] Furthermore, it should be stated in the description of this application that if terms indicating orientation or positional relationship, such as "up," "down," "left," "right," "front," "rear," "inner," and "outer," appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and for clarity and conciseness of expression, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Taking the vehicle described in this application as an example, the directional terms such as "up," "down," "left," "right," "front," and "rear" used in the embodiments are defined based on the vehicle's vertical direction (also known as the height direction), horizontal direction (also known as the width direction), and front-back direction (also known as the length direction). Specifically, as shown in the accompanying drawings, the X direction is the vehicle's front-back direction, where the side pointed by the arrow is "front," and the opposite is "rear." The Y direction is the vehicle's horizontal direction, where the side pointed by the arrow is "left," and the opposite is "right." The Z direction is the vehicle's vertical direction, where the side pointed by the arrow is "up," and the opposite is "down." "Inner" and "outer" are defined based on the outline of the corresponding components. For example, "inner" and "outer" are defined based on the outline of the vehicle. The side of the vehicle outline closer to the middle of the vehicle is "inner", and the other side is "outer".

[0029] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within 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.

[0030] 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.

[0031] The upper side beam is located at the top of the side assembly and the side edge of the roof. It is a beam structure that connects and is shared by the side frame and the roof frame. Therefore, the structural strength of the upper side beam itself has an important impact on the overall structure of the vehicle side and the vehicle roof.

[0032] Traditional vehicle side panel upper beams are typically constructed from multiple sheet metal sections and reinforcing plates located at the top of the A, B, and C pillars. This process is complex, involving extensive welding and assembly, and results in a relatively heavy overall weight. Furthermore, these segmented sheet metal sections do not extend through the A, B, C, and D pillars of the side panel frame, leading to an incomplete force transmission structure. This results in poor overall structure and force transmission performance at the top of the side panel frame, impacting vehicle safety in the event of collisions, roof crushes, or other hazards.

[0033] In view of the above-mentioned problems in the related technologies, this application innovatively proposes a brand-new side panel upper beam, which can provide a stable beam foundation for the overlapping and fixing of the A-pillar, B-pillar, C-pillar in the side panel frame and the various crossbeams on the vehicle roof.

[0034] 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.

[0035] An embodiment of the first aspect of this application provides a side upper beam, applied to the side and top frame construction of a vehicle; an exemplary structure is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown.

[0036] Overall, the side panel upper edge beam includes an edge beam body 1 composed of multiple segments connected in sequence, and a connecting core tube 13 disposed between two adjacent segments. Both the edge beam body 1 and the connecting core tube 13 are made of bent metal tubular profiles; the front and rear halves of the connecting core tube 13 are respectively inserted into the inner cavities 10 of the two adjacent segments and riveted to the outer walls 101 of the two segments respectively.

[0037] Based on the overall design concept described above, a segmented design is adopted, connecting each segment of the side beam body 1 through connecting core tubes 13 to form a beam structure that runs through the top of the side wall along the front-rear direction of the vehicle. Both the side beam body 1 and the connecting core tubes 13 are made of bent metal tubular profiles, ensuring the excellent structural performance of the beam itself. The connecting core tubes 13 are fixed to the segments using a riveting structure, ensuring the stability of the connection between the segments. With the side beam body 1 using a tubular profile bending process, the side beam can adapt to the rich curved shapes required at the top of the vehicle's side wall frame, thus providing a stable beam foundation for the overlapping and fixed connection of the A-pillars 2, B-pillars 3, C-pillars 4 in the side wall frame, as well as the various crossbeams on the vehicle's top, which is beneficial to improving the overall structural performance and force transmission effect of the top of the side wall frame.

[0038] It should be noted that both the side beam body 1 and the connecting core tube 13 are made of metal tubular profiles, processed using a tension bending process. This effectively meets the processing accuracy requirements for the curved shape of the side beam and ensures the structural strength of the beam. Tension bending is a forming process that applies axial tensile force to a metal profile to cause plastic deformation, thereby bending it into a specific curvature shape. It is mainly used to reduce springback and ensure forming accuracy. This process is controlled by changing the stress state of the neutral layer and includes types such as top bending, pressure bending, roll bending, and tension bending.

[0039] Based on the overall design concept described above, the technical solution of this application can adopt various different specific implementation structures, forms, or configuration sequences. For example, the side beam body 1 can be made of tubular profiles with a circular or square cross-section, or profiles of other shapes; the material of the side beam body 1 can be steel or aluminum. After the A-pillars 2, B-pillars 3, C-pillars 4 in the side frame and the various crossbeams on the vehicle roof are connected to the side beam body 1, they can be fixed by different methods such as welding, screwing, or riveting. The specific arrangement sequence and assembly method between the A-pillars 2, B-pillars 3, C-pillars 4 and the various crossbeams on the vehicle roof and the side beams on the side frame can also be flexibly adjusted. For parts required for the implementation of the overall solution but not covered in the overall setup described above, reasonable and flexible designs can be made by referring to mature setup methods in the field and the actual situation during implementation, which will not be elaborated here. The specific implementation schemes described below in this embodiment are only one of the many solutions that can be formed by the various combinations and variations described above. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the various combinations and variations of the above-mentioned specific forms that can form numerous solutions, as well as the specific implementation schemes of this embodiment, are all within the protection scope of this application.

[0040] As mentioned above, the specific materials for the side beam body 1 and the connecting core tube 13 can be steel tubing or aluminum tubing; preferably, aluminum tubing is used for bending to improve the overall lightweight design of the side upper side beam. The side beam body 1 adopts a segmented design, which facilitates the individual 3D bending processing of each segment. After the segments are connected into a whole side upper side beam by the connecting core tube 13, the side upper side beam can form a gradually curved shape in the X, Y, and Z directions of the vehicle, which can meet different vehicle exterior styling requirements.

[0041] Continue as Figures 5 to 10As shown, as a preferred exemplary embodiment among various feasible solutions, the cross-section of the outer wall 101 of the side beam body 1 in this embodiment is an irregular polygon, and the cross-sectional shape of the connecting core tube 13 is set to conform to the cross-sectional shape of the inner cavity 10. By setting the cross-section of the side beam body 1 to an irregular polygonal shape, the outer wall 101 of the side beam body 1 will have sides facing multiple directions, which can well adapt to the overlapping assembly needs of the beam and the reinforcing plate located at the top and the outer side; the conformal design of the cross-sectional shape of the connecting core tube 13 allows the connecting core tube 13 to be tightly inserted into the inner cavity 10 of the side beam body 1, realizing a tight embedded connection between the connecting core tube 13 and each segment of the side beam body 1. Combined with the riveting between the connecting core tube 13 and the outer wall 101, the connection reliability between each segment can be further improved.

[0042] Furthermore, preferably, support ribs 102 can be provided in the portion of the inner cavity 10 where the connecting core tube 13 is not inserted, thereby dividing the inner cavity 10 into multiple sub-cavities 100. Based on the need for inserting the connecting core tube 13, support ribs 102 should not be provided in the portions of the inner cavity 10 where the connecting core tube 13 needs to be inserted; providing support ribs 102 in other portions, and dividing the inner cavity 10 into multiple sub-cavities 100, can further improve the structural performance of the side beam body 1, thereby improving the compressive and bending resistance of the side beam body 1.

[0043] The specific number of support ribs 102 can be flexibly selected. In this embodiment, multiple support ribs 102 are provided in the inner cavity 10. Each support rib 102 extends outward from the center of the inner cavity 10 towards the outer wall 101 and connects to the bending portion 103 of the outer wall 101. By providing multiple support ribs 102 in the inner cavity 10 in a radiating distribution and connecting the ends of the support ribs 102 to the bending portion 103 of the outer wall 101, that is, the corner of the irregular polygon, the support ribs 102 and the various sides of the outer wall 101 can construct multiple triangular or irregular quadrilateral cavity structures, which can further improve the structural strength of the side beam body 1.

[0044] Based on the above configuration, preferably, the cross-section of the outer wall 101 of the side beam body 1 in this embodiment is an irregular heptagon, and the support ribs 102 are set to three, and the bending portions 103 connecting the support ribs 102 are not adjacent. Designing the cross-section of the outer wall 101 as an irregular heptagon shape not only provides sufficient sides on the outer wall 101 for the side frame and the crossbeam of the vehicle roof to overlap, but also allows for the setting of chamfer-like sides between the overlapping sides; the number of seven sides is moderate, which also facilitates the processing, forming and manufacturing of the side beam body 1.

[0045] Based on the number of side ribs of the outer wall 101, three support ribs 102 are provided in the inner cavity 10. The ends of the three support ribs 102 are connected to three of the seven bends 103 on the outer wall 101, thus ensuring the arrangement principle of connecting the support ribs 102 with the non-adjacent bends 103. The support ribs 102 and the various side ribs of the outer wall 101 together form two triangular and one quadrilateral cavity structure. The shape and size of these three cavities 100 are moderate, which not only facilitates the processing and forming of the side beam body 1, but also further improves the structural performance of the side beam body 1.

[0046] The number of segments in the side beam body 1 can be flexibly set; the more segments, the greater the workload of connection and assembly. Therefore, preferably, the side beam body 1 in this embodiment adopts a two-segment design, specifically composed of a front segment 11 and a rear segment 12 connected together; and the connection point between the front segment 11 and the rear segment 12 is located between column B 3 and column C 4 in the side frame. The two-segment design of the side beam body 1 avoids the increased workload of connection and assembly caused by too many segments, and the separate bending and forming design of the front segment 11 and the rear segment 12 can well meet the overall length and trend requirements of the top of the side frame. Positioning the connection point between the front segment 11 and the rear segment 12 between column B 3 and column C 4 is centrally located and avoids positions with high structural strength requirements, which helps ensure the structural reinforcement effect of the side beam within the entire side frame.

[0047] like Figure 4 , Figure 9 and Figure 10 As shown, in this embodiment, as a preferred exemplary implementation among various feasible solutions, the connecting core tube 13 and the segment are fixedly connected by multiple blind rivets 14, which are distributed on multiple sides of the outer wall 101. The connection between the connecting core tube 13 and the segment via multiple blind rivets 14 ensures the reliability of the riveting; distributing the multiple blind rivets 14 on different sides of the outer wall 101 avoids the blind rivets 14 being too concentrated, which further improves the reliability of the riveting connection between adjacent segments.

[0048] Furthermore, the two adjacent segmented edge beams 1 abut together and are welded together. By joining the two adjacent segments together on the basis of riveting and connecting them using welding methods such as laser welding, the strength of the connection between the segments can be further improved.

[0049] Based on the above configuration, chamfers can also be provided at the outer edges of the end faces of each segment. When two adjacent segments abut together, a V-shaped notch 15 for welding will be formed at the chamfer. By providing chamfers at the outer edges of the end faces of the segments, when two adjacent segments abut together, the chamfered area forms a V-shaped notch 15 on the circumference of the side beam body, which is the most suitable position for welding. Welding at this position helps to improve the reliability of the welding.

[0050] In summary, the side upper beam of this embodiment adopts a segmented design, connecting each segment of the side beam body 1 through connecting core tubes 13 to form a beam structure that runs through the top of the side wall along the front-rear direction of the vehicle. Both the side beam body 1 and the connecting core tubes 13 are made of bent metal tubular profiles, ensuring the excellent structural performance of the beam itself. The connecting core tubes 13 are fixed to the segments using a riveting structure, ensuring the stability of the connection between the segments. With the side beam body 1 using a tubular profile bending process, the side upper beam can adapt to the rich curved shapes required at the top of the vehicle's side frame, thus providing a stable beam foundation for the overlapping and fixed connection of the A-pillars 2, B-pillars 3, C-pillars 4 in the side frame and the various crossbeams on the vehicle's top, which is beneficial to improving the overall structural performance and force transmission effect of the top of the side frame.

[0051] An embodiment of the second aspect of this application provides a vehicle that employs the side upper beam provided in the embodiment of the first aspect of this application; an exemplary structure of the vehicle's body frame is as follows: Figure 11 and Figure 12 As shown.

[0052] Overall, the vehicle's body frame includes a side frame and an upper side beam provided by an embodiment of the first aspect located on top of the side frame.

[0053] The upper side beam is made of bent metal profiles and extends along the side edge of the roof from the front windshield crossbeam 7 to the rear of the vehicle. The A-pillars 2, B-pillars 3, and C-pillars 4 in the side frame all overlap with this upper side beam. By continuously installing the upper side beam along the front-rear direction of the vehicle at the top of the side frame, the tops of the A-pillars 2, B-pillars 3, and C-pillars 4 in the side frame can be connected. This also provides a foundation for the overlapping of multiple crossbeams on the vehicle roof, avoiding the traditional design of forming side beams by welding numerous sheet metal parts at the top of the side frame, thus simplifying assembly. Furthermore, the upper side beam, made of bent metal profiles, has good structural strength, which helps improve the overall structural performance and force transmission effect of the side frame top, thereby enhancing the torsional stiffness, roof crush, and collision performance of the vehicle body frame.

[0054] Continue as Figure 12 and combined Figures 1 to 4 As shown, as a relatively preferred exemplary implementation form among various feasible solutions, the side body frame of this embodiment further includes a wheel arch reinforcement beam 6 extending rearward from the middle part of the C-pillar 4, and the tail end of the wheel arch reinforcement beam 6 is lapped on the side body upper beam. Providing the wheel arch reinforcement beam 6 at the rear side of the C-pillar 4, and lapping and fixedly connecting the tail end of the wheel arch reinforcement beam 6 to the side body upper beam, can effectively improve the overall structural strength of the rear part of the side body frame.

[0055] Based on the above arrangement situation, the side body frame of this embodiment further includes a D-pillar 5 extending upward from the middle part of the wheel arch reinforcement beam 6, and the top end of the D-pillar 5 is also lapped on the side body upper beam. By providing the upward extending D-pillar 5 in the middle part of the wheel arch reinforcement beam 6, and fixedly connecting the top end of the D-pillar 5 to the side body upper beam, the rear half section of the side body upper beam, the D-pillar 5 and the wheel arch reinforcement beam 6 can jointly form a triangular support structure, which is beneficial to further improve the structural stability of the tail part of the side body frame.

[0056] Of course, there are multiple design forms for the frame structure at the top of the vehicle. The side body upper beam of this embodiment includes a roof frame 8; the roof frame 8 includes a front roof cross member 81, a middle roof cross member 82 and a rear roof cross member 83 which are sequentially arranged at intervals in the front-rear direction of the vehicle; both ends of the front roof cross member 81, the middle roof cross member 82 and the rear roof cross member 83 are respectively lapped on the side body upper beams on both sides. By respectively lapping both ends of the front roof cross member 81, the middle roof cross member 82, the rear roof cross member 83 and the like in the roof frame 8 on the side body upper beams on both sides of the vehicle, each cross member in the roof frame 8 and the side body upper beams on both sides jointly form a top frame structure similar to the shape of the Chinese character "mu", which is beneficial to improving the overall structural strength of the vehicle top, and further improving the roof pressure resistance performance of the vehicle body frame.

[0057] For the specific arrangement of the specific number of the middle roof cross members 82, of course, there are a variety of different technical solutions to choose from; for example, it can be one, two, three or more, which can be flexibly adjusted according to whether a sunroof is provided on the roof and other situations. In this embodiment, a plurality of middle roof cross members 82 are arranged at intervals. Arranging a plurality of middle roof cross members 82 at intervals in the roof frame 8 can further improve the structural strength of the middle part of the vehicle roof.

[0058] In addition, the side roof rail of this embodiment further includes a tail frame 9; the tail frame 9 includes a luggage compartment rear cross member 91 disposed at the vehicle tail, and two ends of the luggage compartment rear cross member 91 are respectively connected to the tail ends of the side roof rails on both sides. By arranging the luggage compartment rear cross member 91 in the tail frame 9 of the vehicle, and fixedly connecting the two ends of the luggage compartment rear cross member 91 to the tail ends of the side roof rails on both sides respectively, the tail frame 9 and the side roof rails on both sides form an integral frame, which can effectively improve the structural strength of the vehicle tail; when the vehicle is subjected to a rear-end collision, the impact force generated by the collision can be transmitted through the side roof rails on both sides and dispersed to the entire body frame.

[0059] In addition to the above-mentioned luggage compartment rear cross member 91, the tail frame 9 of this embodiment further includes a partition cross member 92 disposed corresponding to the partition in the luggage compartment, and two ends of the partition cross member 92 are also respectively lapped on the side roof rails on both sides. By arranging the partition cross member 92 corresponding to the partition in the luggage compartment and lapping the two ends of the partition cross member 92 on the side roof rails on both sides, the partition cross member 92 and the luggage compartment rear cross member 91 of the tail frame 9 together with the side roof rails on both sides can jointly form a frame structure in a shape of a Chinese character "kou" (mouth), which not only provides a stable foundation for the arrangement of the partition, but also can further improve the overall structural strength of the vehicle tail.

[0060] In summary, by arranging the side roof rail to extend through the top of the side body in the front-rear direction of the vehicle, the tops of the A-pillar 2, B-pillar 3, C-pillar 4 and the like in the side body frame can be connected, and a lapping foundation is provided for a plurality of cross members at the top of the vehicle, avoiding the structural form in the traditional design that the side rail is formed by tailor-welding a large number of sheet metal parts at the top of the side body frame, so that the assembly is simpler; the side roof rail is made by stretch-bending a metal profile, which has good structural strength, is beneficial to improving the overall structural performance and force transmission effect of the top of the side body frame, and further can improve the torsional stiffness, roof pressure resistance and collision performance of the body frame.

[0061] Moreover, by arranging the above-mentioned side roof rail on the vehicle, since the rail body 1 is a beam structure penetrating front and rear, it can completely cover the A-pillar 2, B-pillar 3, C-pillar 4 and D-pillar 5, so that reliable connection can be realized between the rail body 1 and each pillar in the side body frame, and the wheel housing reinforcing beam 6 is arranged in the front-rear direction of the vehicle, thereby forming a good support and force transmission channel between the D-pillar 5 and the tail part of the rail body 1, and constituting a balanced force transmission structure at the side part of the vehicle. At the same time, the rail body 1 is lapped and fixedly connected with the front windshield cross member 7, the front roof cross member 81, the middle roof cross member 82, the rear roof cross member 83, the luggage compartment rear cross member 91, the partition cross member 92 and the like at the top of the vehicle, so that a plurality of frame structures in a shape of a Chinese character "mu" (eye) are formed at the top of the vehicle, constituting a top force transmission structure, which greatly improves the overall structural stability of the top of the vehicle. Through the above arrangement, the torsional stiffness, roof pressure resistance and collision performance of the vehicle body can be greatly improved Furthermore, the side beam body 1 of this application adopts a 3D bending structure, with varying trends in the X, Y, and Z directions of the vehicle, conforming to the streamlined shape of the vehicle roof and the changing trend of the glass surface. The cross-section of the side beam body 1 adopts an irregular heptagonal structure, and the hollow design structure can achieve a weight reduction effect; moreover, the inner cavity 10 is divided into three sub-cavities 100 by setting three supporting ribs 102, which greatly improves the structural performance of the side beam body 1 itself and ensures the reliable decomposition and transmission of force when the side beam body 1 is subjected to pressure on the side and top.

[0062] The above description is merely a preferred embodiment of this application. Detailed explanations of configurations, examples of specific structural arrangements, and descriptions of assembly and connection methods are provided to ensure sufficient disclosure so that those skilled in the art can better implement this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A side panel upper beam, characterized in that: It includes a side beam body (1) composed of multiple segments connected in sequence, and a connecting core tube (13) disposed between two adjacent segments. The side beam body (1) and the connecting core tube (13) are both made of metal tubular profiles bent by bending. The front half and the rear half of the connecting core tube (13) are respectively inserted into the inner cavity (10) of the two adjacent segments and respectively riveted to the outer wall (101) of the two segments.

2. The side upper beam according to claim 1, characterized in that: The cross-section of the outer wall (101) is an irregular polygon, and the cross-sectional shape of the connecting core tube (13) follows the cross-sectional shape of the inner cavity (10).

3. The side upper beam according to claim 2, characterized in that: The portion of the inner cavity (10) where the connecting core tube (13) is not inserted is provided with a support rib (102), which divides the inner cavity (10) into multiple sub-cavities (100).

4. The side upper beam according to claim 3, characterized in that: The inner cavity (10) is provided with a plurality of support ribs (102), each support rib (102) extending outward from the middle of the inner cavity (10) toward the outer wall (101) and connecting to the bending part (103) of the outer wall (101).

5. The side upper beam according to claim 4, characterized in that: The outer wall (101) has an irregular heptagonal cross-section, and there are three supporting ribs (102), and the bending parts (103) connected by each supporting rib (102) are not adjacent.

6. The side upper beam according to claim 1, characterized in that: The side beam body (1) is formed by connecting the front section (11) and the rear section (12) of the side beam. The connection between the front section (11) and the rear section (12) of the side beam is located between the B column (3) and the C column (4) in the side frame.

7. The side upper beam according to claim 1, characterized in that: The connecting core tube (13) is fixed to the segment by multiple pull rivets (14), and each of the pull rivets (14) is distributed on multiple sides of the outer wall (101).

8. The side upper beam according to any one of claims 1 to 7, characterized in that: The two adjacent segments are joined together and welded together.

9. The side upper beam according to claim 8, characterized in that: The outer edge of the end face of the segment is chamfered, and when two adjacent segments abut together, a V-shaped notch (15) for welding is formed at the chamfer of the two segments.

10. A vehicle, characterized in that: The vehicle uses the side upper beam as described in any one of claims 1 to 9.

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