A vehicle body structure

Abstract

The embodiment of the application provides a kind of car body structure, it is related to rail transit technical field, it includes end wall, side wall, roof and roof boundary beam, both sides of roof are connected with side wall by roof boundary beam, end wall is located at the end of side wall and is connected with side wall, roof longitudinal beam is arranged at both sides of roof, roof longitudinal beam is parallel with roof boundary beam, roof longitudinal beam is located at the inside of roof, and roof longitudinal beam is connected with roof, roof boundary beam, the end of roof longitudinal beam is connected with end wall, and roof boundary beam is at least partially connected with end wall, to pass through roof boundary beam and roof longitudinal beam and transfer the load that end wall area bears, improve the compression resistance of end wall area.

Description

Technical Field

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

[0002] High-low roof vehicles can effectively utilize the vehicle's clearance space. They generally divide the roof into a flat roof and a dome roof, with components such as air conditioning units installed in the flat roof area.

[0003] High-low roof vehicles generally also include end walls, side walls, roof and underframe. A side wall is set on each side of the extension direction of the roof. The side walls and the two sides of the roof are connected by the roof side beams. The side walls are also connected to the two sides of the underframe. The end walls are set at the ends of the side walls and are connected to both side walls at the same time to form a carrying space with the side walls, underframe and roof.

[0004] Currently, the end walls of high- and low-roof vehicles are generally spot-welded to the side walls, and the load is transferred through the connection with the side walls. However, the side wall panels are relatively thin, resulting in weak compressive strength in the end wall area. Once the end wall area is subjected to a large impact, it is extremely easy to shift and deform, which may cause the entire vehicle to deform accordingly and cause a major safety accident. Summary of the Invention

[0005] This application provides a vehicle body structure to improve the compressive strength of the end wall area.

[0006] This application provides a vehicle body structure, including an end wall, side walls, a roof, and roof edge beams. The two sides of the roof are connected to the side walls via the roof edge beams. The end wall is located at the end of the side wall and is connected to the side wall. Roof longitudinal beams are provided on both sides of the roof. The roof longitudinal beams are parallel to the roof edge beams and are located on the inner side of the roof. The roof longitudinal beams are connected to the roof and the roof edge beams. The end of the roof longitudinal beam is connected to the end wall. The roof edge beams are at least partially connected to the end wall.

[0007] In some possible implementations, a first reinforcing plate is provided on the inner side of the end wall, and both the roof side beam and the roof longitudinal beam are connected to the first reinforcing plate.

[0008] In some possible implementations, at least one first stiffening plate is also provided on the roof longitudinal beam. The first stiffening plate has a first connecting portion and a second connecting portion. The extension direction of the first connecting portion is parallel to the extension direction of the roof longitudinal beam, and the first connecting portion is connected to the roof longitudinal beam. The extension direction of the second connecting portion is parallel to the width direction of the end wall, and the second connecting portion is connected to the first reinforcing plate.

[0009] In some possible implementations, the first stiffener further includes a third connecting portion, the first connecting portion and the second connecting portion are respectively connected to both ends of the third connecting portion, the third connecting portion has a gap with the roof longitudinal beam and the first reinforcing plate, the side of the third connecting portion away from the roof longitudinal beam is set as arc-shaped, and the connection between the third connecting portion and the first connecting portion and the second connecting portion away from the roof longitudinal beam is a smooth transition.

[0010] In some possible implementations, the roof longitudinal beam includes a first connecting plate, a second connecting plate, and a third connecting plate connected in sequence. One surface of the first connecting plate is attached to the inner side of the roof and connected to the roof. The second connecting plate and the third connecting plate are perpendicular to each other. A second reinforcing plate is provided on the side of the second connecting plate and the third connecting plate facing the roof. At least one second stiffening plate is provided between two second reinforcing plates. A plurality of fourth connecting plates are provided on the end of the third connecting plate away from the second connecting plate. One surface of the fourth connecting plate is attached to the inner surface of the roof side beam and connected to the roof side beam.

[0011] In some possible implementations, a connecting assembly is also included. The side wall also includes a window and a lower window crossbeam located below the window. The connecting assembly is provided below the roof side beam and at the lower window crossbeam. The connecting assembly is used to connect the side wall and the end wall.

[0012] In some possible implementations, the side wall further includes a side wall panel, a third reinforcing plate, and at least one side wall column. The side wall column is perpendicular to the lower crossbeam of the window. The side wall column includes a top plate and two webs perpendicular to the top plate. The two webs are respectively disposed on opposite sides of the top plate. A flange is provided on the side of the web away from the top plate. The flange is parallel to the top plate and extends in a direction away from the top plate. The flange is attached to and connected to the inner surface of the side wall panel. The third reinforcing plate is covered on one of the flanges adjacent to the end wall.

[0013] The connecting assembly includes a first angle iron and a second angle iron. Both the first angle iron and the second angle iron include a first vertical plate and a second vertical plate that are perpendicular to each other. The first vertical plate of the first angle iron is connected to the top plate on the side away from the side wall plate. The second vertical plate of the first angle iron is connected to the end wall. The first vertical plate of the second angle iron is parallel to and connected to the first vertical plate of the first angle iron. The second vertical plate of the second angle iron is connected to the end wall, and the two second vertical plates extend in opposite directions.

[0014] In some possible implementations, at least two side wall columns are arranged side by side, and the side wall also includes a fifth connecting plate. The top plate adjacent to the end wall, on the side away from the side wall plate, is partially connected to the first vertical plate of the first angle iron, and the other part is connected to the fifth connecting plate. The end of the fifth connecting plate abuts against the end of the first vertical plate. The other top plate adjacent to the top plate, on the side away from the side wall plate, is also connected to the fifth connecting plate.

[0015] In some possible implementations, the sidewall further includes a plurality of sidewall beams and a plurality of sixth connecting plates. The sidewall beams are parallel to the lower beam of the window and are located between adjacent sidewall columns and connected to the sidewall columns. The sixth connecting plates are located between the sidewall columns and the fifth connecting plates, and are correspondingly connected to the top plates of the two sidewall columns, the sidewall beams located between the two top plates, and the fifth connecting plates.

[0016] In some possible implementations, at least three side wall columns are provided: a sixth connecting plate adjacent to the roof longitudinal beam and a sixth connecting plate located at the corresponding position of the lower crossbeam of the window, extending from one end away from the end wall to another side wall crossbeam.

[0017] The side wall also includes at least one seventh connecting plate, one end of which is connected to the fifth connecting plate away from the end wall, and the other end extends in the direction away from the end wall until it overlaps with the top plate of another side wall beam, and is connected to the top plate through an eighth connecting plate. The middle part of the seventh connecting plate is connected to the side wall beam between the two side wall columns.

[0018] In some possible implementations, a third angle iron, a fourth angle iron, and a connector are also included. The third angle iron, the fourth angle iron, and the connector are all located at the lower crossbeam of the window. One vertical plate of the third angle iron is connected to the fifth connecting plate and the first vertical plate of the first angle iron, and the other vertical plate is connected to the connector. The connector is connected to the end wall at one end away from the third angle iron to form a cavity between the first angle iron, the third angle iron, the connector, and the end wall. The fourth angle iron is located in the cavity, and the two vertical plates of the fourth angle iron are connected to the first vertical plate and the second vertical plate of the first angle iron, respectively.

[0019] In some possible implementations, a ninth connecting plate is also included, which is parallel to the fifth connecting plate and connected to the side of the fifth connecting plate away from the side wall column, with one end of the ninth connecting plate abutting against the end of the third angle iron away from the end wall.

[0020] The vehicle body structure provided in this application embodiment, by setting roof longitudinal beams on both sides of the roof, with the upper part of the roof longitudinal beams connected to the roof and the lower part connected to the roof side beams, and the ends of the roof longitudinal beams connected to the end walls, while the roof side beams are at least partially connected to the end walls, can transfer longitudinal loads through the roof side beams and roof longitudinal beams when the upper part of the end wall area is under pressure, so that the longitudinal loads can be distributed to the side walls, roof and other positions, thereby effectively improving the compressive strength of the end wall area and improving the stability of the vehicle body. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic diagram of the existing connection structure between the end wall and the side wall;

[0023] Figure 2 This is a schematic diagram of the vehicle body structure provided in the embodiments of this application;

[0024] Figure 3 for Figure 2 A schematic diagram of the vehicle body structure after adding roof longitudinal beams;

[0025] Figure 4 for Figure 3 A schematic diagram of the vehicle body structure after the addition of the first stiffener.

[0026] Figure 5 for Figure 4 A schematic diagram of a partial structure in the vehicle body structure;

[0027] Figure 6 A schematic diagram illustrating the connection structure between the roof longitudinal beam and the roof and roof side beams in the vehicle body structure provided in this embodiment of the application;

[0028] Figure 7 This is a structural schematic diagram of the roof longitudinal beam in the vehicle body structure provided in the embodiments of this application;

[0029] Figure 8 This is a schematic diagram of the sidewall structure in the vehicle body structure provided in the embodiments of this application;

[0030] Figure 9 for Figure 8 A schematic diagram of the end of the side wall structure in the middle;

[0031] Figure 10 for Figure 8 Top view of the side wall structure;

[0032] Figure 11 This is a schematic diagram of the end wall in the vehicle body structure provided in the embodiments of this application;

[0033] Figure 12 for Figure 11 A magnified structural diagram of circle A in the diagram;

[0034] Figure 13 for Figure 11 A magnified structural diagram of circle B in the diagram;

[0035] Figure 14 A schematic diagram of the connection structure between the end wall and the side wall below the roof longitudinal beam in the vehicle body structure provided in this application embodiment;

[0036] Figure 15 for Figure 14 A structural schematic diagram of the vehicle body structure from another perspective;

[0037] Figure 16 A schematic diagram of the connection structure between the end wall and the side wall at the lower crossbeam of the window in the vehicle body structure provided in this application embodiment;

[0038] Figure 17 for Figure 16 A schematic diagram of the vehicle body structure after the addition of the ninth connecting plate;

[0039] Figure 18 for Figure 17 A structural diagram of the vehicle body from another perspective.

[0040] Figure label:

[0041] 100 - Roof; 110 - Roof longitudinal beam; 111 - First connecting plate; 112 - Second connecting plate; 113 - Third connecting plate; 114 - Fourth connecting plate; 115 - Second reinforcing plate; 116 - Second stiffening plate; 120 - First stiffening plate; 121 - First connecting part; 122 - Third connecting part; 123 - Second connecting part;

[0042] 200-Side wall; 210-Window; 220-Side wall column; 221-Top plate; 222-Web plate; 223-Flanged edge; 230-Third reinforcing plate; 240-Side wall plate; 250-Side wall beam; 251-Sixth connecting plate; 252-Tenth connecting plate; 260-Adjusting cavity; 270-Fifth connecting plate; 280-Seventh connecting plate; 290-Eighth connecting plate;

[0043] 300 - End wall; 310 - First reinforcing plate; 320 - Top bending beam; 330 - Upper crossbeam; 340 - Lower crossbeam;

[0044] 400 - Roof Beam;

[0045] 510 - First angle iron; 511 - First vertical plate; 512 - Second vertical plate; 520 - Second angle iron;

[0046] 600-Third Angle Iron;

[0047] 700-Fourth Angle Iron;

[0048] 800-Connector;

[0049] 900 - Ninth Connecting Plate.

[0050] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0051] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0052] Currently, there are two main types of stainless steel subway cars: one type uses a continuous dome and laser-welded side walls, while the other type uses a high-low dome and spot-welded side walls.

[0053] Vehicle bodies with high and low roofs and spot-welded side walls can effectively utilize vehicle clearance space, but their end wall areas generally have poor compressive strength, often failing to meet the requirements of relevant standards for a compressive load of 150kN at the lower edge of the roof and 300kN at the lower edge of the windows.

[0054] In related technologies, such as Figure 1 As shown, a connection structure between a side wall and an end wall is disclosed. A narrow cavity similar to a tubular structure is formed between the side wall panel 20 and the end wall frame 10 through the side wall end corner post 30 and the connecting angle iron 40. The longitudinal load is transmitted through the tubular structure. However, the side wall panel 20 is relatively thin, generally only 1.5 mm thick, which makes the tubular structure have a weak wall, and the compressive strength of the end wall area is difficult to effectively improve.

[0055] To avoid the aforementioned problems, this application provides a vehicle body structure in which the roof side beams and roof longitudinal beams are connected to the end walls, and structures for transmitting longitudinal loads are provided below the roof side beams and at the position of the crossbeams below the windows, thereby distributing the longitudinal load borne by the end walls to other components from multiple positions, effectively improving the compressive strength of the end wall area and enhancing the safety of the vehicle body during use.

[0056] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0057] Please see Figure 2 and Figure 3 As shown, this embodiment provides a vehicle body structure, including an end wall 300, a side wall 200, a roof 100, and a roof side beam 400.

[0058] The roof side beams 400, roof 100, and side walls 200 extend in the same direction. The roof side beams 400 are located on opposite sides of the roof 100 and are connected to the roof 100. The top of the side wall 200 is connected to the roof side beams 400, while the end wall 300 is located at the end of the side wall 200. The two sides of the end wall 300 are connected to the ends of the two side walls 200 respectively. The roof side beams 400 are also at least partially connected to the end wall 300. The roof 100, side walls 200, and end walls 300 are then combined with the vehicle's chassis to form a carrying space.

[0059] For example, the portion of the roof side beam 400 within the transport space is welded to the end wall 300. This can be achieved by directly abutting the inner surface of the end wall 300 and then welding it. Of course, this connection method has relatively strict requirements on the length of the roof side beam 400. If the length of the roof side beam 400 is slightly short and cannot abut against the end wall 300, a connecting block can be added. The extension direction of the connecting block is parallel to the roof side beam 400, and it fits against the inner wall of the roof side beam 400 and is welded to the roof side beam 400. At the same time, one end of the connecting block abuts against the end wall 300 and is welded to the end wall 300.

[0060] In addition, roof longitudinal beams 110 are provided on both sides of the roof 100. The roof longitudinal beams 110 are parallel to the roof side beams 400. The roof longitudinal beams 110 are located on the inner side of the roof 100, that is, the side of the roof 100 facing the transport space. The roof longitudinal beams 110 are connected to the roof 100 and the roof side beams 400. The ends of the roof longitudinal beams 110 are welded to the end wall 300.

[0061] Of course, the roof longitudinal beam 110 can be installed only on the connection side between the side wall 200 and the end wall 300, that is, only at the end, and not in the middle. The roof longitudinal beam 110 can extend from the side door adjacent to the side wall 200 and the end wall 300 to the very end of the side wall 200. Here, the side door refers to the side of the side door closest to the end wall. The shape of the roof longitudinal beam 110 can also be adapted to the shape of the roof 100, the roof side beam 400 and the end wall 300, as long as it can be stably connected with the three. This embodiment does not limit it.

[0062] After adding the roof longitudinal beam 110, the roof longitudinal beam 110 can connect the roof 100, the roof side beam 400 and the end wall 300. The roof side beam 400 also connects the roof 100, the side wall 200 and the end wall 300. When the end wall 300 bears the longitudinal load, in addition to transmitting the longitudinal load through the connection point between the end wall 300 and the side wall 200, it can also transmit the longitudinal load synchronously through the connection points with the roof longitudinal beam 110 and the roof side beam 400. Thus, the longitudinal load borne by the end wall 300 can be quickly transmitted to components such as the roof 100 and the side wall 200, effectively improving the compressive strength of the end wall area.

[0063] For some possible implementations, please refer to Figure 5 As shown, a first reinforcing plate 310 is provided on the inner side of the end wall 300. The roof side beam 400 and the roof longitudinal beam 110 are both connected to the first reinforcing plate 310, which can be a welded connection. It can be understood that the first reinforcing plate 310 is added at the position where the end wall 300 is used to connect with the roof longitudinal beam 110 and the roof side beam 400, thereby increasing the rigidity of the end wall 300 at that position.

[0064] For some possible implementations, please refer to Figure 4 and Figure 5 As shown, at least one first stiffening plate 120 is also provided on the roof longitudinal beam 110. The first stiffening plate 120 has a first connecting part 121 and a second connecting part 123. The extending direction of the first connecting part 121 is parallel to the extending direction of the roof longitudinal beam 110, and the first connecting part 121 is connected to the roof longitudinal beam 110. The extending direction of the second connecting part 123 is parallel to the width direction of the end wall 300, and the second connecting part 123 is connected to the first reinforcing plate 310.

[0065] After the first stiffener 120 is set, the first connecting part 121 has a relatively large contact surface with the roof longitudinal beam 110, and the second connecting part 123 has a relatively large contact surface with the end wall 300. This can help transmit longitudinal force and also help improve the connection strength between the roof longitudinal beam 110 and the end wall 300.

[0066] It is understood that one or more first stiffeners 120 can be provided. When multiple first stiffeners 120 are provided, they can be arranged sequentially along the vertical direction. This embodiment does not limit this.

[0067] In addition, the first stiffening plate 120 also includes a third connecting part 122. The first connecting part 121 and the second connecting part 123 are respectively connected to the two ends of the third connecting part 122. The third connecting part 122 has a gap with the roof longitudinal beam 110 and the first reinforcing plate 310 so as to avoid the weld between the roof longitudinal beam 110 and the first reinforcing plate 310 through the gap. The side of the third connecting part 122 away from the roof longitudinal beam 110 is set as arc-shaped, and the arc-shaped side of the third connecting part 122 and the connection between the first connecting part 121 and the second connecting part 123 are all smoothly transitioned, thereby reducing stress concentration and improving strength.

[0068] It is understandable that the first connecting part 121, the second connecting part 123, and the third connecting part 122 are integrally formed stainless steel plates to effectively transmit longitudinal forces and improve strength.

[0069] For some possible implementations, please refer to Figure 6 and Figure 7 As shown, the roof longitudinal beam 110 includes a first connecting plate 111, a second connecting plate 112, and a third connecting plate 113 connected in sequence. One surface of the first connecting plate 111 is attached to the inner side of the roof 100 and connected to the roof 100. That is, the curvature of the first connecting plate 111 is consistent with that of the roof 100, so as to weld with the roof 100, improve the connection strength with the roof 100, and increase the contact surface between the two to better transmit longitudinal force.

[0070] The second connecting plate 112 and the third connecting plate 113 are perpendicular to each other. Both the second connecting plate 112 and the third connecting plate 113 have a second reinforcing plate 115 on the side facing the roof 100, which enhances the strength of the second connecting plate 112 and the third connecting plate 113. At least one second stiffening rib 116 is provided between the two second reinforcing plates 115. The second stiffening rib 116 can be a right-angled triangle, with one side conforming to the surface of the second reinforcing plate 115 on the second connecting plate 112, one side conforming to the surface of the second reinforcing plate 115 on the third connecting plate 113, and the hypotenuse facing the roof side beam 400. Thus, the second stiffening rib 116 further enhances the strength of the roof longitudinal beam 110.

[0071] The third connecting plate 113 has multiple fourth connecting plates 114 at one end away from the second connecting plate 112. The multiple fourth connecting plates 114 are spaced apart along the extension direction of the third connecting plate 113. One surface of the fourth connecting plate 114 is attached to the inner surface of the roof side beam 400 and connected to the roof side beam 400. That is, the fourth connecting plate 114 is attached to the side of the roof side beam 400 facing the transport space and welded to the roof side beam 400, thereby improving the connection strength between the roof side beam 400 and the roof longitudinal beam 110 and increasing the contact surface between the two to better transmit longitudinal force.

[0072] It is understandable that, in order to facilitate welding, welding openings can be made at corresponding positions on the first connecting plate 111 and the fourth connecting plate 114 for plug welding or in-hole fillet welding.

[0073] In addition, the first connecting plate 111, the second connecting plate 112, the third connecting plate 113, and the fourth connecting plate 114 can be integrally formed to improve strength.

[0074] For some possible implementations, please refer to Figure 8 As shown, the vehicle body structure also includes connecting components. The side wall 200 also includes a window 210 and a lower window crossbeam located below the window 210. The lower window crossbeam is the crossbeam on the side wall 200 that is closest to the window 210 below the window 210. Connecting components are provided below the roof side beam 400 and at the lower window crossbeam. The connecting components are used to connect the side wall 200 and the end wall 300, thereby assisting in transferring the stress borne by the end wall 300 to the side wall 200 frame through the connecting components, thereby improving the compressive strength of the end wall area.

[0075] For some possible implementations, please refer to Figure 9 and Figure 10 As shown, the side wall 200 also includes a side wall panel 240, a third reinforcing plate 230 and at least one side wall column 220. When multiple side wall columns 220 are provided, they can be arranged side by side along the extension direction of the side wall panel 240. The side wall column 220 is perpendicular to the lower crossbeam of the window. The side wall column 220 includes a top plate 221 and two web plates 222 perpendicular to the top plate 221. The two web plates 222 are located on opposite sides of the top plate 221. A flange 223 is provided on the side of the web plate 222 away from the top plate 221. The flange 223 is parallel to the top plate 221, thus forming a side wall column 220 in a Z-shape. The flange 223 extends away from the top plate 221 and is attached to and connected to the inner surface of the side wall plate 240. A third reinforcing plate 230 is installed on the flange 223 adjacent to the end wall 300 and is connected to the flange 223. That is, the third reinforcing plate 230 is only provided at the end of the side wall plate 240. The height of the third reinforcing plate 230 is basically the same as the height of the side wall plate 240, thereby increasing the strength of the connection area between the side wall plate 240 and the end wall 300 through the third reinforcing plate 230.

[0076] Meanwhile, a Z-shaped component can be added between the two web plates 222 of the side wall column 220. The two flanges and one top edge of the Z-shaped component are connected to the two web plates 222 respectively, thereby further improving the strength of the side wall column 220 and enhancing its resistance to deformation.

[0077] The end wall 300 may include an end wall frame and an end wall plate. The end wall plate is located on the outside of the end wall frame and is connected to the end wall frame. A skirt may be provided at the end that contacts the third reinforcing plate 230. The skirt extends in a direction away from the side wall column 220 and is parallel to the third reinforcing plate 230. The two are in contact with each other, which further enhances the connection strength between the end wall 300 and the side wall 200.

[0078] Please see Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, the connecting assembly includes a first angle iron 510 and a second angle iron 520. Both the first angle iron 510 and the second angle iron 520 include a first vertical plate 511 and a second vertical plate 512 that are perpendicular to each other. The first vertical plate 511 of the first angle iron 510 is connected to the side of the top plate 221 away from the side wall plate 240. The second vertical plate 512 of the first angle iron 510 is connected to the end wall 300. The first vertical plate 511 of the second angle iron 520 is parallel to and connected to the first vertical plate 511 of the first angle iron 510. That is, the length of the first vertical plate 511 of the second angle iron 520 in the extension direction of the side wall plate 240 is less than the length of the first vertical plate 511 of the first angle iron 510, and one surface of the two first vertical plates 511 is in contact with each other. The second vertical plate 512 of the second angle iron 520 is connected to the end wall 300, and the extension directions of the two second vertical plates 512 are opposite. That is, the L-shape formed by the first angle iron 510 and the second angle iron 520 faces opposite directions.

[0079] This configuration creates an adjustment cavity 260 between the second angle iron 520 of the side wall column 220 and the end wall 300. The second angle iron 520 is located within this adjustment cavity 260, which enhances the strength of the side wall and end wall plate adjacent to the adjustment cavity 260 and the end wall 300. The third reinforcing plate 230 further enhances the strength of the other side wall adjacent to the adjustment cavity 260 and the end wall 300, thereby effectively improving the deformation resistance of the adjustment cavity 260. The first angle iron 510 and the second angle iron 520 also work together to form a load-bearing structure similar to two hands supporting a load. The load is transmitted through the two palms pushing the end wall 300, while the arms continuously transfer the load to the side wall 200, thus improving the compressive strength of the end wall 300.

[0080] The length of the adjusting cavity 260 in the extension direction of the side wall plate 240 should preferably be less than 65mm, so as to avoid the adjusting cavity 260 being too large and causing buckling deformation of each component under longitudinal load.

[0081] For example, please see Figure 15As shown, at least two side wall columns 220 are arranged side by side. The side wall 200 also includes a fifth connecting plate 270. One end of the first vertical plate 511 of the first angle iron 510 and the fifth connecting plate 270 extends to the outside of the top plate 221 adjacent to the end wall 300 and each covers a part of the top plate 221. The first vertical plate 511 of the first angle iron 510 and the fifth connecting plate 270 are both connected to the top plate 221. At the same time, the other end of the fifth connecting plate 270 extends to the outside of another top plate 221 adjacent to the top plate 221 and connects to it. Of course, the first vertical plate 511 of the first angle iron 510 and one end of the fifth connecting plate 270 abut against each other.

[0082] Specifically, of the two side wall columns 220 closest to the end wall 300, the one closest to the end wall 300 is designated as the first column and the other as the second column. The first vertical plate 511 of the first angle iron 510 covers a portion of the top plate 221 of the first column, while the fifth connecting plate 270 covers another portion of the top plate 221. At the same time, the fifth connecting plate 270 extends towards the second column until it covers the top plate 221 of the second column. In addition, at the top plate 221 of the first column, the fifth connecting plate 270 and the vertical plate of the first angle iron 510 are in contact, thereby assisting in the transmission of longitudinal force to the adjacent side wall column 220 through the fifth connecting plate 270, further improving the compressive strength of the end wall area.

[0083] Further, please see Figure 14 and Figure 15 As shown, the side wall 200 also includes multiple side wall beams 250 and multiple sixth connecting plates 251. The side wall beams 250 are parallel to the lower beam of the window and are located between adjacent side wall columns 220 and connected to the side wall columns 220. Together with the side wall columns 220, they support the side wall panel 240 and allow the load to be transferred between adjacent side wall columns 220. Of course, the side wall beams 250 can also be set in a U-shape, in which case the two sides of the U-shape of the side wall beams 250 are connected to the side wall panel 240. The sixth connecting plate 251 is located between the side wall column 220 and the fifth connecting plate 270. That is, the sixth connecting plate 251 is only set at the two side wall columns 220 closest to the end wall 300. The sixth connecting plate 251 is connected to the top plate 221 of the two side wall columns 220, the side wall beam 250 located between the two top plates 221, and the fifth connecting plate 270. The number of sixth connecting plates 251 corresponds to the number of side wall beams 250. That is, the sixth connecting plate 251 can be set as an H-shaped structure, with its middle part parallel to and connected to the side wall beam 250, and the plates at both ends connected to the top plate 221 of the two side wall columns 220. Thus, the load transfer effect is further improved through the sixth connecting plate 251.

[0084] In addition, a tenth connecting plate 252 can be set between two adjacent sixth connecting plates 251. The tenth connecting plate 252 is connected to the top plate 221 on the side away from the side wall plate 240, and the thickness of the tenth connecting plate 252 is the same as the thickness of the sixth connecting plate 251, so that the fifth connecting plate 270 can be welded to the sixth connecting plate 251 and the tenth connecting plate 252, effectively improving the fixing effect of the fifth connecting plate 270.

[0085] In addition, when three or more side wall pillars 220 are provided, the sixth connecting plate 251 adjacent to the roof longitudinal beam 110 and the sixth connecting plate 251 located at the corresponding position of the lower crossbeam of the window extend from the end wall 300 to the other side wall crossbeam 250. That is, the side wall pillar 220 on the side of the second pillar away from the first pillar is referred to as the third pillar. The end of the sixth connecting plate 251 extends to the side wall crossbeam 250 between the second pillar and the third pillar and connects with the side wall crossbeam 250.

[0086] The side wall 200 also includes at least one seventh connecting plate 280. One end of the seventh connecting plate 280 is connected to the end of the fifth connecting plate 270 away from the end wall 300, and the other end extends in the direction away from the end wall 300 until it overlaps with the top plate 221 of the side wall beam 250, and is connected to the top plate 221 through the eighth connecting plate 290. The middle part of the seventh connecting plate 280 is connected to the sixth connecting plate 251, that is, the eighth connecting plate 290 is connected to the top plate 221 of the third column. One end of the seventh connecting plate 280 abuts against the end of the fifth connecting plate 270 away from the first angle iron 510, and the other end extends towards the third column and fits against the side of the eighth connecting plate 290 away from the side wall plate 240. At the same time, the two can be welded together, thereby further improving the load transfer effect through the seventh connecting plate 280 and reducing the compressive strength of the end wall area.

[0087] Understandably, in order to facilitate welding the fifth connecting plate 270 onto the sixth connecting plate 251 and the seventh connecting plate 280 onto the eighth connecting plate 290, multiple welding holes can be made on the fifth connecting plate 270 and the seventh connecting plate 280 for welding.

[0088] For some possible implementations, please refer to Figure 16As shown, the vehicle body structure also includes a third angle iron 600, a fourth angle iron 700, and a connector 800. The third angle iron 600, fourth angle iron 700, and connector 800 are all located at the lower crossbeam of the window. One vertical plate of the third angle iron 600 is connected to the fifth connecting plate 270 and the first vertical plate 511 of the first angle iron 510, and the other vertical plate is connected to the connector 800. The end of the connector 800 facing away from the third angle iron 600 is connected to the end wall 300, so as to connect the first angle iron 510 and the third angle iron 600. 0. A cavity is formed between the connector 800 and the end wall 300. The fourth angle iron 700 is located in the cavity, and the two vertical plates of the fourth angle iron 700 are connected to the first vertical plate 511 and the second vertical plate 512 of the first angle iron 510. Of course, the width of the two vertical plates of the fourth angle iron 700 is smaller than the width of the first vertical plate 511 and the second vertical plate of the first angle iron 510, so as to reinforce the first angle iron 510 through the fourth angle iron 700 and improve the rigidity of the first angle iron 510.

[0089] The connector 800 may include a first plate, a second plate, and a third plate. The first plate and the third plate are parallel to each other and perpendicular to the second plate. The first plate and the third plate are respectively connected to the two sides of the second plate. Meanwhile, the first plate extends toward the first angle iron 510 so as to be opposite the end of the first angle iron 510. Of course, there is a gap between the first plate and the end of the first angle iron 510. At the same time, the first plate is parallel to the end wall plate and fits against the end wall plate. The third plate extends away from the first angle iron 510 and fits against the surface of a vertical plate of the third angle iron 600, thereby further improving the deformation resistance of the end wall area.

[0090] When the end wall 300 bears a load, the load at the lower crossbeam of the window will be transferred through the first angle iron 510, the second angle iron 520, the connector 800, and the third angle iron 600, which improves the stress transfer effect. Furthermore, the fourth angle iron 700 and the third reinforcing plate 230 can provide reinforcement to increase rigidity, thereby effectively improving the compressive strength of the end wall area.

[0091] Understandably, two connecting components are provided, and two corresponding first angle irons 510 and second angle irons 520 are also provided. The end wall 300 also includes a top bending beam 320, an upper crossbeam 330, and a lower crossbeam 340. The first reinforcing plate 310 is located below the top bending beam 320. The first angle iron 510 and the second angle iron 520 adjacent to the roof longitudinal beam 110 are located between the first reinforcing plate 310 and the upper crossbeam 330. Among the first angle irons 510 and the second angle iron 520 at the lower crossbeam of the window, the first angle iron 510 can extend from the upper crossbeam 330 to the lower crossbeam 340, while the second angle iron 520 can be provided only at the lower crossbeam of the window. The lower edge of the roof 100 and the lower crossbeam of the window are the easily deformable areas of the end wall 300. This arrangement can effectively improve the compressive strength of the end wall 300 in the end wall area at the roof longitudinal beam 110 and the lower crossbeam of the window, without causing a significant change in the weight of the vehicle body.

[0092] To further enhance the compressive strength of the end wall area at the lower crossbeam of the vehicle window, please refer to [link / reference needed]. Figure 17 and Figure 18 As shown, the vehicle body structure also includes a ninth connecting plate 900, which is parallel to the fifth connecting plate 270 and connected to the side of the fifth connecting plate 270 away from the side wall column 220. One end of the ninth connecting plate 900 abuts against the end of the third angle iron 600 away from the end wall 300, and the other end can extend to the side of the seventh connecting plate 280 away from the side wall beam 250, partially overlapping with the end of the seventh connecting plate 280 near the fifth connecting plate 270. Thus, the ninth connecting plate 900 assists in transferring loads and improves the deformation resistance of the third angle iron 600.

[0093] Of course, to facilitate connection, multiple welding holes can be made on the ninth connecting plate 900, and the ninth connecting plate 900 and the fifth connecting plate 270 can be welded through the welding holes.

[0094] In general, this embodiment of the application connects the roof longitudinal beam 110, the roof side beam 400, and the first reinforcing plate 310 to transfer longitudinal loads. Below the roof longitudinal beam 110 and at the lower crossbeam of the window, the adjustment cavity between the side wall column 220 and the end wall 300 prevents uncontrollable buckling deformation caused by excessive distance. The side wall plate 240 has increased stiffness by adding a third reinforcing plate 230, and the load transfer between the end wall 300 and the side wall 200 is achieved by forming a two-handed supporting force structure through the first angle iron 510 and the second angle iron 520. This makes the compressive strength of the end wall area of ​​the vehicle body structure provided by this embodiment of the application meet the 150kN compressive load at the lower edge of the roof 100 and the 300kN compressive load at the lower edge of the window 210 as specified in EN12663-1, effectively improving the safety and stability of the vehicle body.

[0095] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A vehicle body structure, comprising an end wall (300), a side wall (200), a roof (100), and a roof edge beam (400), wherein the two sides of the roof (100) are connected to the side wall (200) via the roof edge beam (400), and the end wall (300) is located at the end of the side wall (200) and connected to the side wall (200), characterized in that, A roof longitudinal beam (110) is provided on both sides of the roof (100). The roof longitudinal beam (110) is parallel to the roof side beam (400). The roof longitudinal beam (110) is located on the inner side of the roof (100) and is connected to the roof (100) and the roof side beam (400). The end of the roof longitudinal beam (110) is connected to the end wall (300). The roof side beam (400) is at least partially connected to the end wall (300). The side wall (200) also includes a window (210), a lower crossbeam below the window (210), a side wall panel (240), and at least one side wall column (220); the side wall column (220) includes a top plate (221); The vehicle body structure also includes connecting components, which are provided below the roof side beam (400) and at the lower crossbeam of the window. The connecting components are used to connect the side wall (200) and the end wall (300). The connecting assembly includes a first angle iron (510) and a second angle iron (520). Both the first angle iron (510) and the second angle iron (520) include a first vertical plate (511) and a second vertical plate (512) that are perpendicular to each other. The first vertical plate (511) of the first angle iron (510) is connected to the top plate (221) on the side away from the side wall plate (240). The second vertical plate (512) of the first angle iron (510) is connected to the end wall (300). The first vertical plate (511) of the second angle iron (520) is parallel to and connected to the first vertical plate (511) of the first angle iron (510). The second vertical plate (512) of the second angle iron (520) is connected to the end wall (300), and the two second vertical plates (512) extend in opposite directions. At least two side wall columns (220) are arranged side by side. The side wall (200) also includes a fifth connecting plate (270). The top plate (221) adjacent to the end wall (300) is away from the side wall plate (240). Part of it is connected to the first vertical plate (511) of the first angle iron (510), and the other part is connected to the fifth connecting plate (270). The end of the fifth connecting plate (270) abuts against the end of the first vertical plate (511). The other top plate (221) adjacent to the top plate (221) is also connected to the fifth connecting plate (270) on the side away from the side wall plate (240).

2. The vehicle body structure according to claim 1, characterized in that, The inner side of the end wall (300) is provided with a first reinforcing plate (310), and the roof side beam (400) and the roof longitudinal beam (110) are both connected to the first reinforcing plate (310).

3. The vehicle body structure according to claim 2, characterized in that, The roof longitudinal beam (110) is also provided with at least one first stiffening plate (120). The first stiffening plate (120) has a first connecting part (121) and a second connecting part (123). The extension direction of the first connecting part (121) is parallel to the extension direction of the roof longitudinal beam (110), and the first connecting part (121) is connected to the roof longitudinal beam (110). The extension direction of the second connecting part (123) is parallel to the width direction of the end wall (300), and the second connecting part (123) is connected to the first reinforcing plate (310).

4. The vehicle body structure according to claim 3, characterized in that, The first stiffener (120) also includes a third connecting part (122), the first connecting part (121) and the second connecting part (123) are respectively connected to both ends of the third connecting part (122), the third connecting part (122) has a gap with the roof longitudinal beam (110) and the first reinforcing plate (310), the side of the third connecting part (122) away from the roof longitudinal beam (110) is set as arc, and the connection between the third connecting part (122) and the first connecting part (121) and the second connecting part (123) away from the roof longitudinal beam (110) is a smooth transition.

5. The vehicle body structure according to claim 1, characterized in that, The roof longitudinal beam (110) includes a first connecting plate (111), a second connecting plate (112), and a third connecting plate (113) connected in sequence. One surface of the first connecting plate (111) is attached to the inner side of the roof (100) and connected to the roof (100). The second connecting plate (112) and the third connecting plate (113) are perpendicular to each other. The second connecting plate (112) and the third connecting plate (113) are each provided with a second reinforcing plate (115) on the side facing the roof (100). At least one second stiffening plate (116) is provided between the two second reinforcing plates (115). The third connecting plate (113) is provided with a plurality of fourth connecting plates (114) on the side away from the second connecting plate (112). One surface of the fourth connecting plate (114) is attached to the inner surface of the roof side beam (400) and connected to the roof side beam (400).

6. The vehicle body structure according to claim 1, characterized in that, The side wall (200) also includes a third reinforcing plate (230). The side wall column (220) is perpendicular to the lower crossbeam of the window. The side wall column (220) also includes two web plates (222) perpendicular to the top plate (221). The two web plates (222) are respectively located on opposite sides of the top plate (221). The web plate (222) is provided with a flange (223) on the side away from the top plate (221). The flange (223) is parallel to the top plate (221) and extends away from the top plate (221). The flange (223) is attached to and connected to the inner surface of the side wall plate (240). The third reinforcing plate (230) is covered on one of the flanges (223) adjacent to the end wall (300).

7. The vehicle body structure according to claim 1, characterized in that, The side wall (200) also includes multiple side wall beams (250) and multiple sixth connecting plates (251). The side wall beams (250) are parallel to the lower beam of the window and are located between adjacent side wall columns (220) and connected to the side wall columns (220). The sixth connecting plate (251) is located between the side wall columns (220) and the fifth connecting plate (270). The sixth connecting plate (251) is correspondingly connected to the top plate (221) of the two side wall columns (220), the side wall beam (250) located between the two top plates (221), and the fifth connecting plate (270).

8. The vehicle body structure according to claim 7, characterized in that, At least three side wall columns (220) are provided, including the sixth connecting plate (251) adjacent to the roof longitudinal beam (110) and the sixth connecting plate (251) located at the corresponding position of the lower crossbeam of the window, which extends from the end wall (300) to another side wall crossbeam (250). The side wall (200) also includes at least one seventh connecting plate (280), one end of which is connected to the fifth connecting plate (270) away from the end wall (300), and the other end extends in the direction away from the end wall (300) until it overlaps with the top plate (221) of another side wall beam (250), and is connected to the top plate (221) through an eighth connecting plate (290). The middle part of the seventh connecting plate (280) is connected to the sixth connecting plate (251) between the two side wall columns (220).

9. The vehicle body structure according to claim 7, characterized in that, It also includes a third angle iron (600), a fourth angle iron (700), and a connector (800), all of which are located at the lower crossbeam of the window. One vertical plate of the third angle iron (600) is connected to the fifth connecting plate (270) and the first vertical plate (511) of the first angle iron (510), and the other vertical plate is connected to the connector (800). The end of the first angle iron (510) away from the third angle iron (600) is connected to the end wall (300) to form a cavity between the first angle iron (510), the third angle iron (600), the connector (800) and the end wall (300). The fourth angle iron (700) is located in the cavity, and the two vertical plates of the fourth angle iron (700) are connected to the first vertical plate (511) and the second vertical plate (512) of the first angle iron (510) respectively.

10. The vehicle body structure according to claim 9, characterized in that, It also includes a ninth connecting plate (900), which is parallel to the fifth connecting plate (270) and connected to the side of the fifth connecting plate (270) away from the side wall column (220). One end of the ninth connecting plate (900) abuts against the end of the third angle iron (600) away from the end wall (300).

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