Vehicle body structure and vehicle

Abstract

The utility model provides a vehicle body structure and a vehicle. The vehicle body structure comprises a doorsill beam, a floor beam and a connecting piece, wherein the end of the floor beam is connected with the doorsill beam, and the connecting piece is arranged between the doorsill beam and the end of the floor beam. The end part of the floor cross beam is provided with a first part and a second part extending outwards relative to the first part, the first part is in butt joint with the side part of the doorsill beam, and the second part is in lap joint with the top of the doorsill beam; the connecting piece is located on one side of the first part and connected between the first part and the doorsill beam. According to the vehicle body structure, the connecting rigidity and strength between the doorsill beam and the floor cross beam can be improved, the force transmission effect between the doorsill beam and the floor cross beam is improved, and therefore the collision performance of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bodies, and in particular to a vehicle body structure. Meanwhile, the utility model also relates to a vehicle provided with the vehicle body structure. Background Art

[0002] As an important part of the vehicle, the body structure has a significant impact on the safety, power, economy, comfort and handling of the vehicle. Among them, the door sill beam and the floor crossbeam are important components of the body structure, and the connection stability between the two is related to the overall collision performance of the body structure. However, the existing body structure mostly uses steel plate stamping parts and is connected by welding. It is heavy and has low connection stiffness, which is not conducive to improving the force transmission effect. Utility Model Content

[0003] In view of this, the utility model aims to provide a vehicle body structure to improve the force transmission effect between the door sill beam and the floor cross beam.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vehicle body structure comprises a sill beam, a floor cross beam having an end connected to the sill beam, and a connecting member provided between the sill beam and the end of the floor cross beam;

[0006] The end of the floor beam has a first portion and a second portion extending outward relative to the first portion, the first portion is butted against the side of the threshold beam, and the second portion is overlapped on the top of the threshold beam;

[0007] The connecting member is located at one side of the first portion, and the connecting member is connected between the first portion and the sill beam.

[0008] Further, the first portion is connected to the side of the sill beam by welding, and / or the second portion is connected to the top of the sill beam by welding.

[0009] Furthermore, the second portion and the threshold beam are connected via rivets.

[0010] Furthermore, the connecting member is located below the first portion, and the connecting member is respectively connected to the side of the door sill beam and the bottom of the first portion.

[0011] Furthermore, the connecting member and the door sill beam, and / or the connecting member and the first part are connected via rivets.

[0012] Furthermore, the connecting member includes a first side wall abutting against the side portion of the sill beam, and a second side wall abutting against the bottom of the first portion; the front and rear ends of the first side wall are respectively provided with a first flange, the front and rear ends of the second side wall are respectively provided with a second flange, and the first flange and the second flange at the same end are connected together.

[0013] Furthermore, the connecting member is a sheet metal member formed by bending, and the first flange and the second flange located at the same end are connected by welding.

[0014] Furthermore, the door sill beam and the floor cross beam are both made of extruded aluminum profiles.

[0015] Furthermore, the outer contour of the cross section of the floor beam is trapezoidal, and reinforcing ribs are provided inside the floor beam, and the reinforcing ribs separate a plurality of cavities inside the floor beam.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The vehicle body structure described in the utility model can improve the connection stiffness and strength between the sill beam and the floor cross beam by connecting the first part of the floor cross beam with the side part of the sill beam and overlapping the second part with the top of the sill beam. At the same time, by providing a connecting piece, and connecting the connecting piece between the first part and the sill beam, the connection stiffness and strength between the sill beam and the floor cross beam can be further increased, thereby improving the force transmission effect between the two, thereby improving the collision safety of the entire vehicle.

[0018] In addition, welding is used between the first part and the side of the threshold beam, and between the second part and the top of the threshold beam, which can make the connection method simpler and ensure good connection strength. The second part and the threshold beam are connected by rivets, which can further improve the reliability of the connection between the floor beam and the threshold beam on the basis of welding. The connecting piece is arranged below the first part, and the connecting piece is connected to the threshold beam and the first part, which can play a connecting role and a supporting role at the same time, and can increase the reliability of the connection between the floor beam and the threshold beam.

[0019] Secondly, the connection between the connector and the threshold beam, and between the connector and the first part, is connected by rivets, which can improve the connection convenience between the connector and the threshold beam and the floor cross beam. The arrangement of the first side wall, the first flange, the second side wall and the second flange in the connector can simplify the overall structure of the connector and preliminarily enhance the structural strength of the connector. At the same time, the first flange and the second flange at the same end are connected together, which can further enhance the structural strength of the connector itself.

[0020] In addition, the use of sheet metal parts that are bent and formed is conducive to the preparation of connectors, and the flanges are welded together to form a self-welding structure, which helps to simplify the connector structure and further ensure the structural strength of the connector. The door sill beam and the floor beam are both made of extruded aluminum profiles, which can facilitate the preparation of the two beams, ensure the structural strength of each beam, and also help to reduce the weight of the vehicle body. The outer contour of the cross section of the floor beam is trapezoidal, and multiple cavities are separated in the floor beam by reinforcing ribs. The trapezoidal structure and the high strength of the cavity structure can be used to increase the structural strength of the floor beam.

[0021] Another object of the present invention is to provide a vehicle, wherein the vehicle is provided with the vehicle body structure as described above.

[0022] The vehicle described in the utility model can improve the connection rigidity and strength between the door sill beam and the floor cross beam by setting the above-mentioned body structure, so that there is a good force transmission effect between the two, thereby enhancing the collision safety of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the vehicle body structure according to an embodiment of the utility model;

[0025] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure of the structure shown in another perspective;

[0027] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of the connecting piece according to an embodiment of the utility model;

[0029] Figure 6 for Figure 5 A schematic diagram of the structure of the structure shown in another perspective;

[0030] Figure 7 The cross section of the floor beam according to the embodiment of the utility model;

[0031] Figure 8 It is a structural schematic diagram of the transmission path of the vehicle body structural force during a side collision according to an embodiment of the utility model;

[0032] Fig. 9 It is a structural schematic diagram of the transmission path of the vehicle body structural force during a head-on collision according to an embodiment of the utility model;

[0033] Description of reference numerals:

[0034] 1. Threshold beam; 11. Threshold bottom wall; 12. Threshold top wall; 13. Threshold side wall; 14. Reinforcement rib;

[0035] 2. Floor beam; 20. Cavity; 21. First part; 22. Second part; 23. Reinforcement rib; 24. Floor bottom wall; 25. Floor top wall; 26. Floor side wall;

[0036] 3. Connecting piece; 31. First side wall; 311. First flange; 32. Second side wall; 321. Second flange;

[0037] 4. Rivets. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] Taking the vehicle in which the vehicle body structure described in the utility model is located as an example, the directional words used in the embodiments, such as "up, down, left, right, front, and back", are defined based on the up and down direction (also known as the height direction, or the Z direction of the whole vehicle), the left and right direction (also known as the width direction, or the Y direction of the whole vehicle), and the front and rear direction (also known as the length direction, or the X direction of the whole vehicle). "Inside and outside" are defined based on the contour of the corresponding parts. For example, "inside" and "outside" are defined based on the contour of the vehicle, and the side of the vehicle contour close to the middle of the vehicle is "inside", and the opposite is "outside".

[0041] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] Embodiment 1

[0044] The present embodiment relates to a vehicle body structure having a high structural strength, which is more conducive to improving the force transmission effect, thereby being able to enhance the collision safety performance of the entire vehicle.

[0045] In terms of overall structure, Figures 1 to 7 As shown, the vehicle body structure of this embodiment includes a sill beam 1 , a floor cross beam 2 whose end is connected to the sill beam 1 , and a connecting member 3 provided between the sill beam 1 and the end of the floor cross beam 2 .

[0046] The end of the floor cross beam 2 has a first portion 21 and a second portion 22 extending outward relative to the first portion 21, the first portion 21 is butted against the side of the threshold beam 1, and the second portion 22 is overlapped on the top of the threshold beam 1. The connecting member 3 is located on one side of the first portion 21, and the connecting member 3 is connected between the first portion 21 and the threshold beam 1.

[0047] As configured above, by connecting the first portion 21 of the floor cross beam 2 with the side of the threshold beam 1 and overlapping the second portion 22 with the top of the threshold beam 1, the present embodiment can improve the connection stiffness and strength between the threshold beam 1 and the floor cross beam 2. At the same time, by providing the connecting member 3 and connecting the connecting member 3 between the first portion 21 and the threshold beam 1, the present embodiment can further increase the connection stiffness and strength between the threshold beam 1 and the floor cross beam 2, thereby achieving the effect of improving the force transmission capacity between the floor cross beam 2 and the threshold beam 1.

[0048] Based on the above overall introduction, specifically, in the vehicle body structure of the present embodiment, it is worth mentioning that it generally includes a sill beam 1 arranged on the left side of the vehicle body, and a sill beam 1 arranged on the right side of the vehicle body, and in specific implementation, the left and right ends of the above-mentioned floor cross beam 2 and the sill beams 1 on the left and right sides are connected by the above-mentioned connection method.

[0049] At this time, since the connection form between the left end of the floor cross beam 2 and the left side threshold beam 1, and between the right end of the floor cross beam 2 and the right side threshold beam 1 are the same, this embodiment is specifically described by taking the connection between the left end of the floor cross beam 2 and the left side threshold beam 1 as an example in the drawings and the following text.

[0050] In this embodiment, as a preferred implementation form, the first portion 21 is connected to the side of the door sill beam 1 by welding, so that the connection between the two is simpler and a better connection strength can be ensured.

[0051] Considering the requirement for connection stability between the second portion 22 and the top of the sill beam 1, as a preferred implementation, the second portion 22 and the top of the sill beam 1 are also welded together, thereby achieving the beneficial effects of simpler connection and higher connection strength.

[0052] In specific implementation, the above welding form preferably adopts MIG welding (Melt Inert-gas Welding). MIG welding has the advantages of easy operation by workers and good weld forming quality, and can ensure welding efficiency and effect.

[0053] In this embodiment, as a preferred implementation form, see Figure 2 and Figure 4 As shown in the figure, the second part 22 and the sill beam 1 are connected by rivets 4. The advantage of such a configuration is that, on the basis of welding the two, the reliability of the connection between the floor cross beam 2 and the sill beam 1 can be further improved, and the connection failure at the welding part of the two during the force transmission process can be avoided, which seriously affects the stability of the overall vehicle body structure, making the force transmission more reliable and stable.

[0054] Here, it is worth mentioning that the rivet 4 of this embodiment is preferably a blind rivet 4, so that the connection operation is more convenient and labor-saving, and has better connection stability compared with the traditional solid rivet 4. The number of rivets 4 can also be set and adjusted according to the connection requirements between the second part 22 and the threshold beam 1, for example, it is specifically two or three arranged at intervals in the front-to-back direction.

[0055] Furthermore, based on the coordinated arrangement of the first portion 21 and the second portion 22 in the present embodiment, a T-shaped joint can be formed at the end of the floor beam 2. Such a joint form is conducive to realizing multiple connections between the floor beam 2 and the threshold beam 1. In particular, except for the side where the first portion 21 is connected to the connecting piece 3, welding can be performed on the other sides where the first portion is connected to the side of the threshold beam 1 and all sides where the second portion is connected to the top of the threshold beam 1. Based on this, combined with the above-mentioned riveting form, the floor beam 2 and the threshold beam 1 are connected in all directions, front and back, left and right, thereby ensuring a good connection effect between the two.

[0056] In addition, in this embodiment, as a preferred implementation form, combined with Figure 3 and Figure 4 As shown, the connecting member 3 is located below the first portion 21 , and the connecting member 3 is respectively connected to the side of the door sill beam 1 and the bottom of the first portion 21 .

[0057] It is understandable that the connecting member 3 is arranged below the first portion 21 and is connected to the threshold beam 1 and the first portion 21 , which can play a connecting role as well as a supporting role, and can increase the reliability of the connection between the floor beam 2 and the threshold beam 1 .

[0058] If necessary, the connecting member 3 of the present embodiment can also have the function of pre-positioning when installing the floor cross beam 2, that is, after the connecting member 3 is first installed on the door sill beam 1, the floor cross beam 2 can be positioned by the connecting member 3 when it is installed, thereby simplifying the assembly process of the vehicle body structure and helping to reduce the investment in production lines and tooling.

[0059] In specific implementation, as a preferred implementation form, in this embodiment, the connecting member 3 and the threshold beam 1 are connected by a rivet 4, so as to simplify the connection process and improve the convenience of connection between the connecting member 3 and the threshold beam 1.

[0060] At the same time, as a preferred implementation form, the connecting member 3 and the first part 21 of this embodiment can also be connected by a rivet 4, which can also simplify the connection operation between the connecting member 3 and the first part 21 and improve the convenience of connection between the two.

[0061] Of course, the rivets 4 here are preferably the above-mentioned blind rivets 4 to ensure good connection convenience and better connection reliability. In addition, the number and arrangement of the rivets 4 between the connector 3 and the sill beam 1 and between the connector 3 and the first part 21 can be set and adjusted accordingly according to actual connection requirements. For example, the rivets 4 between the connector 3 and the sill beam 1 and the rivets 4 between the connector 3 and the first part 21 are all three arranged at intervals along the front-rear direction of the vehicle.

[0062] In this embodiment, as a preferred implementation form, see Figures 4 to 6 As shown in FIG. 1 , the connecting member 3 includes a first side wall 31 abutting against a side portion of the rocker beam 1 , and a second side wall 32 abutting against a bottom portion of the first portion 21 .

[0063] The first side wall 31 has first flanges 311 at both ends, and the second side wall 32 has second flanges 321 at both ends. The first flange 311 and the second flange 321 at the same end are connected together.

[0064] Here, by setting the first side wall 31, the first flange 311, the second side wall 32 and the second flange 321 in the connecting member 3, the overall structure of the connecting member 3 can be simplified, and the structural strength of the connecting member 3 can be preliminarily enhanced by utilizing the design of the structural shape. At the same time, the first flange 311 and the second flange 321 at the same end are connected together, which can further enhance the structural strength of the connecting member 3 itself.

[0065] It is worth mentioning that, in this embodiment, the connector 3 is specifically riveted to the side of the door sill beam 1 through the first side wall 31, and to the bottom of the first portion 21 through the second side wall 32. At the same time, the first side wall 31 and the second side wall 32 are connected and are L-shaped as a whole, so as to improve the torsion resistance of the connector 3. On this basis, the first flange 311 and the second flange 321 at the same end are connected together, which can further improve the structural stability of the connector 3 itself.

[0066] Moreover, as a preferred implementation form, in this embodiment, the connecting member 3 is a sheet metal member formed by bending, and the first flange 311 and the second flange 321 located at the same end are welded and connected.

[0067] With such a configuration, using a bent sheet metal part, this embodiment can facilitate the preparation of the connector 3, and the first flange 311 and the second flange 321 are welded together to form a self-welding structure, thereby helping to simplify the structure of the connector 3 and further ensure the structural strength of the connector 3.

[0068] In addition, in this embodiment, as a preferred implementation form, the threshold beam 1 and the floor cross beam 2 are both made of extruded aluminum profiles, which not only facilitates the preparation of the two beams and ensures the structural strength of each beam, but also helps to reduce the weight of the vehicle body.

[0069] Specifically, in this embodiment, as a preferred implementation form, see Figure 7 As shown in , the outer contour of the cross section of the floor beam 2 is trapezoidal, and a reinforcing rib 23 is provided inside the floor beam 2 , and the reinforcing rib 23 separates a plurality of cavities 20 inside the floor beam 2 .

[0070] By setting the outer contour of the cross section of the floor beam 2 to be trapezoidal and dividing a plurality of cavities 20 in the floor beam 2 by reinforcing ribs 23, the structural strength of the floor beam 2 can be increased by utilizing the characteristics of the trapezoidal structure and the high structural strength of the cavity 20.

[0071] It is still necessary to mention that the relevant structural parts not mentioned in the floor cross beam 2 of the present embodiment can refer to the various structures in the vehicle body well known to those skilled in the art, for example, it includes a floor bottom wall 24, floor side walls 26 arranged on the front and rear sides of the floor bottom wall 24, and a floor top wall 25 arranged on the top of the floor side walls 26 on both sides.

[0072] During specific implementation, the above-mentioned reinforcing ribs 23 can be set and adjusted accordingly according to the actual structural strength requirements of the floor cross beam 2. For example, it has a first reinforcing rib 23 extending along the height direction of the entire vehicle and connected between the floor bottom wall 24 and the floor top wall 25, and a second reinforcing rib 23 connected between the floor side walls 26 on both sides, and the second reinforcing rib 23 and the second reinforcing rib 23 are vertically crossed.

[0073] At the same time, the first reinforcing ribs 23 and the second reinforcing ribs 23 are cross-arranged, and the interior of the floor beam 2 is divided into four cavities 20. Of course, based on the number of cavities 20 or the structural strength requirements of the floor beam 2, the number and arrangement of the first reinforcing ribs 23 and the second reinforcing ribs 23 can also be adjusted accordingly. For example, the first reinforcing ribs 23 and the second reinforcing ribs 23 can both be set to two arranged at intervals, or the first reinforcing rib 23 can be set to one and the second reinforcing rib 23 can be set to two arranged at intervals, etc.

[0074] Moreover, in the present embodiment, since the connecting member 3 is located below the first portion 21 in the floor cross beam 2, the outer contour of the cross section of the floor cross beam 2 is set to be trapezoidal, so that the length of the first portion 21 in the front-rear direction of the vehicle can be longer, thereby increasing the butt joint length between the first portion 21 and the side of the door sill beam 1, thereby increasing the welding area, and at the same time, the connection length between the connecting member 3 and the first portion 21 can also be increased. If necessary, more rivets can be arranged to make a more stable connection between the first portion 21 and the connecting member 3.

[0075] In addition, related structural parts not mentioned in the sill beam 1 of the present embodiment can refer to various structures in the vehicle body well known to those skilled in the art, for example, it includes a sill bottom wall 11, sill side walls 13 arranged on the left and right sides of the sill bottom wall 11, and a sill top wall 12 connected to the tops of the sill side walls 13 on both sides, and based on the structural reinforcement requirements, reinforcing ribs 14 similar to the above-mentioned reinforcing ribs 23 can also be arranged inside the sill beam 1, and multiple cavities with the same function as the cavity 20 can be formed.

[0076] In addition, combined Figure 8 and Fig. 9 As shown, the vehicle body structure of this embodiment can ensure the connection reliability between the floor cross beam 2 and the sill beam 1 and ensure continuous and stable force transmission, regardless of whether it is subjected to a side collision or a head-on collision, based on the welding and riveting connection between the first part 21, the second part 22 and the sill beam 1, and the riveting coordination between the connecting member 3 and the sill beam 1 and the floor cross beam 2. This effectively reduces the risk of failure and makes the overall safety of the vehicle body structure higher.

[0077] The vehicle body structure of the present embodiment adopts the above design, and can preliminarily improve the connection stiffness and strength between the sill beam 1 and the floor cross beam 2 by connecting the first portion 21 of the floor cross beam 2 with the side portion of the sill beam 1, and overlapping the second portion 22 with the top portion of the sill beam 1. At the same time, by providing a connecting member 3, and connecting the connecting member 3 between the first portion 21 and the sill beam 1, the connection stiffness and strength between the sill beam 1 and the floor cross beam 2 can be further increased, and the force transmission effect between the two can be improved, which is beneficial to improving the collision safety of the entire vehicle.

[0078] Embodiment 2

[0079] This embodiment relates to a vehicle, in which the vehicle body structure in the first embodiment is provided.

[0080] The vehicle of this embodiment is provided with the body structure of the first embodiment, so that the connection stiffness and strength between the sill beam 1 and the floor cross beam 2 can be increased, and the force transmission effect between the two can be improved, which helps to improve the quality of the whole vehicle.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body structure, characterized in that: It comprises a threshold beam (1), a floor beam (2) whose end is connected to the threshold beam (1), and a connecting piece (3) provided between the threshold beam (1) and the end of the floor beam (2); The end of the floor crossbeam (2) comprises a first portion (21) and a second portion (22) extending outwardly relative to the first portion (21), the first portion (21) being butted against a side portion of the threshold beam (1), and the second portion (22) being overlapped on the top of the threshold beam (1); The connecting member (3) is located on one side of the first part (21), and the connecting member (3) is connected between the first part (21) and the sill beam (1).

2. The vehicle body structure according to claim 1, characterized in that: The first portion (21) is connected to the side of the sill beam (1) by welding, and / or the second portion (22) is connected to the top of the sill beam (1) by welding.

3. The vehicle body structure according to claim 2, characterized in that: The second part (22) and the door sill beam (1) are connected via rivets (4).

4. The vehicle body structure according to claim 1, characterized in that: The connecting member (3) is located below the first part (21), and the connecting member (3) is respectively connected to the side of the door sill beam (1) and the bottom of the first part (21).

5. The vehicle body structure according to claim 4, characterized in that: The connecting member (3) and the door sill beam (1), and / or the connecting member (3) and the first part (21) are connected via rivets (4).

6. The vehicle body structure according to claim 4, characterized in that: The connecting member (3) comprises a first side wall (31) abutting against a side portion of the door sill beam (1), and a second side wall (32) abutting against a bottom portion of the first portion (21); The first side wall (31) is provided with first flanges (311) at both ends, and the second side wall (32) is provided with second flanges (321) at both ends. The first flange (311) and the second flange (321) at the same end are connected together.

7. The vehicle body structure according to claim 6, characterized in that: The connecting member (3) is a sheet metal member formed by bending, and the first flange (311) and the second flange (321) located at the same end are connected by welding.

8. The vehicle body structure according to any one of claims 1 to 7, characterized in that: The threshold beam (1) and the floor cross beam (2) are both made of extruded aluminum profiles.

9. The vehicle body structure according to claim 8, characterized in that: The outer contour of the cross section of the floor beam (2) is trapezoidal, and a reinforcing rib (23) is provided inside the floor beam (2), wherein the reinforcing rib (23) separates a plurality of cavities (20) inside the floor beam (2).

10. A vehicle, characterized in that: The vehicle is provided with the vehicle body structure according to any one of claims 1 to 9.

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