Vehicle body threshold structure and vehicle

Abstract

The utility model provides a vehicle body doorsill structure and a vehicle. The vehicle body doorsill structure comprises a doorsill beam extending in the front-back direction of the whole vehicle and a reinforcing beam connected to the side, facing the outside of the vehicle, of the doorsill beam. The reinforcing beam is made of an extruded profile and extends in the front-back direction of the whole vehicle, and a side pedal mounting plate is arranged on the reinforcing beam; the side pedal mounting plate extends in the front-back direction of the whole vehicle, in the left-right direction of the whole vehicle, one side of the side pedal mounting plate is connected to the reinforcing beam, and the other side of the side pedal mounting plate extends towards the outside of the vehicle relative to the reinforcing beam. According to the vehicle body doorsill structure, a coherent structure is formed between the side pedal mounting plate and the doorsill beam through the reinforcing beam structure formed through extrusion molding, the side pedal mounting plate can effectively participate in collision force transmission in the side collision process, the energy absorption space of the side portion of a vehicle body can be increased through the side pedal mounting plate extending outwards, and therefore the side pedal mounting plate can be prevented from being damaged. And meanwhile, the reinforcing beam formed through extrusion is arranged on the outer side of the doorsill beam, and the problem that electrophoresis of the reinforcing beam structure is insufficient can be avoided.

Description

Technical Field

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

[0002] In existing vehicles, the sill position of the vehicle body usually adopts a sill beam composed of a steel sheet metal welding structure. And for models equipped with side steps, generally, the side steps are also connected to the sill beam through a sheet metal bracket. Such a structure makes the structure between the side step mounting plate and the sill beam discontinuous. During a side collision, it is difficult for the side step mounting plate to effectively participate in the collision force transmission. And in models where an extruded aluminum reinforcing beam is used to connect the side step mounting plate and the sill beam, since the extruded aluminum reinforcing beam is inside the sill beam, there is a problem of insufficient electrophoresis of the extruded aluminum reinforcing beam. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a vehicle body sill structure, which can enable the side step mounting plate to effectively participate in the collision force transmission and also helps to avoid the problem of insufficient electrophoresis of the reinforcing beam structure.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A vehicle body sill structure includes a sill beam extending along the front-rear direction of the whole vehicle, and a reinforcing beam connected to the outer side of the sill beam facing the vehicle exterior along the left-right direction of the whole vehicle;

[0006] The reinforcing beam is made of an extruded profile and extends along the front-rear direction of the whole vehicle, and a side step mounting plate is provided on the reinforcing beam;

[0007] The side step mounting plate extends along the front-rear direction of the whole vehicle. And in the left-right direction of the whole vehicle, one side of the side step mounting plate is connected to the reinforcing beam, and the other side of the side step mounting plate extends outward relative to the reinforcing beam in the vehicle exterior direction.

[0008] Further, the side step mounting plate is made of an extruded profile; the side step mounting plate is integrally formed on the reinforcing beam, or the side step mounting plate is connected to the reinforcing beam through a connecting structure.

[0009] Further, reinforcing ribs extending along the front-rear direction of the whole vehicle are provided in the reinforcing beam and / or the side step mounting plate, and a plurality of cavities are separated by the corresponding reinforcing ribs in both the reinforcing beam and the side step mounting plate.

[0010] Further, in the left-right direction of the whole vehicle, along the direction pointing to the reinforcing beam, the wall thickness of the side step mounting plate is gradually increased, and the wall thickness of the reinforcing beam is not less than the wall thickness of the side step mounting plate.

[0011] Further, the reinforcing ribs in the reinforcing beam include first reinforcing ribs arranged horizontally, and a plurality of the first reinforcing ribs are arranged at intervals up and down; viewed from the front and rear directions of the whole vehicle, each of the first reinforcing ribs is a "V"-shaped structure protruding to one side, and the protruding directions of adjacent first reinforcing ribs are opposite.

[0012] Further, the reinforcing beam is connected to the sill beam through a screwed connection structure, and the screwed connection structure includes a first screwed connection structure arranged in the left-right direction of the whole vehicle and a second screwed connection structure arranged in the up-down direction of the whole vehicle.

[0013] Further, a notch arranged in the front-rear direction of the whole vehicle is provided on the side of the bottom of the sill beam facing the outside of the vehicle. The reinforcing beam includes a main body part embedded in the notch and a protruding part located at the top of the main body part; the protruding part abuts against the side wall of the sill beam, and the protruding part is connected to the sill beam through the first screwed connection structure, and the main body part is connected to the sill beam through the second screwed connection structure.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] For the body sill structure of the present utility model, a coherent structure can be formed between the side step mounting plate and the sill beam through the extruded reinforcing beam structure. In this way, during a side collision, not only can the side step mounting plate effectively participate in the collision force transmission, but also the extended side step mounting plate can increase the energy absorption space on the side of the vehicle body. At the same time, by arranging the extruded reinforcing beam outside the sill beam, it also helps to avoid the problem of insufficient electrophoresis of the reinforcing beam structure, and has a very good use effect.

[0016] In addition, the side step mounting plate is made of an extruded profile, which is convenient for its preparation and can also ensure its structural strength. Integrally forming the side step mounting plate and the sill beam is beneficial to the preparation of both and can also ensure the reliability of the connection between the two. Connecting the side step mounting plate to the sill beam through a connection structure can increase the flexibility of the side step mounting skeleton arrangement and facilitate its maintenance and replacement. Reinforcing ribs are arranged in the reinforcing beam, and cavities are separated in the reinforcing beam, so that the structural strength of the reinforcing beam can be further increased. Reinforcing ribs are arranged in the side step mounting plate, and a plurality of cavities are separated in the side step mounting plate, so that the structural strength of the side step mounting plate can be further increased.

[0017] Secondly, the wall thickness of the side step mounting plate is gradually increased from the outside to the inside. The overall stiffness of the side step mounting plate and the reinforcing beam can be gradually increased from the outside to the inside, so that the body sill position forms a step-by-step crush energy absorption during a vehicle side collision, which helps to improve the side collision energy absorption effect. The first reinforcing rib is in a "V" shape. When the side collision is squeezed to a certain extent, it can collapse and deform from the tip position of the "V" shape, enabling the reinforcing beam to fully absorb energy and deform, which helps to improve the energy absorption effect of the reinforcing beam. Moreover, the protruding directions of adjacent first reinforcing ribs are opposite, which is also beneficial to ensuring the required structural strength of the reinforcing beam.

[0018] In addition, by adopting the connection in two directions of the vehicle in the Y direction (left-right direction) and the Z direction (up-down direction), the stability of the connection can be ensured, and the instability of the side step mounting plate during the collision can be avoided, which affects its energy absorption effect. A notch for accommodating the main part of the reinforcing beam is provided on the sill beam, which can make the sill position more compactly arranged in the left-right direction of the vehicle, helps to reduce space occupation, and also helps to increase the stiffness of the sill position. At the same time, through the setting of the protruding part, it is also beneficial to realize the multi-directional connection of the screw connection structure, and can better ensure the reliability of the connection between the reinforcing beam and the sill beam.

[0019] Another object of the present invention is to provide a vehicle, at least one side of the middle part of the vehicle is provided with the body sill structure as described above.

[0020] Furthermore, a battery pack is provided inside the sill beam in the middle part of the vehicle, and a connecting cross beam arranged along the left-right direction of the vehicle is provided between the reinforcing beam and the frame of the battery pack.

[0021] Furthermore, a seat mounting cross beam connected to the sill beam is provided in the middle part of the vehicle. The seat mounting cross beam is located above the battery pack, and the connecting cross beam and the seat mounting cross beam are correspondingly arranged in the up-down direction of the vehicle.

[0022] For the vehicle of the present invention, by adopting the above body sill structure, the coherent structure formed between the side step mounting plate and the sill beam through the extruded reinforcing beam structure can enable the side step mounting plate to effectively participate in the collision force transmission during a side collision, and the extended side step mounting plate can increase the energy absorption space on the side of the vehicle body. At the same time, by arranging the extruded reinforcing beam outside the sill beam, it also helps to avoid the problem of insufficient electrophoresis of the reinforcing beam structure, thereby facilitating the improvement of the vehicle quality and use safety performance.

[0023] In addition, connecting the side step mounting plate and the frame of the battery pack with a connecting cross beam can increase the overall torsional stiffness of the middle part of the vehicle body. The connecting cross beam and the seat mounting cross beam are correspondingly arranged in the up-down direction of the vehicle, which can form a double cross beam force transmission structure, helping to improve the stability of side collision force transmission and the force transmission effect. Description of the Drawings

[0024] The attached drawings that form a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the attached drawings:

[0025] Figure 1 It is a schematic structural diagram of the vehicle body sill structure according to the embodiment of the present utility model;

[0026] Figure 2 It is a schematic structural diagram of the first perspective of the vehicle body sill structure according to the embodiment of the present utility model applied in a vehicle;

[0027] Figure 3 It is a schematic structural diagram of the second perspective of the vehicle body sill structure according to the embodiment of the present utility model applied in a vehicle;

[0028] Figure 4 It is a schematic structural diagram of the third perspective of the vehicle body sill structure according to the embodiment of the present utility model applied in a vehicle;

[0029] Figure 5 It is a schematic structural diagram of the sill beam structure according to the embodiment of the present utility model;

[0030] Figure 6 It is a schematic structural diagram of the reinforcing beam and the side step mounting plate according to the embodiment of the present utility model;

[0031] Figure 7 It is Figure 6 the sectional view taken along line A-A in

[0032] Figure 8 It is another schematic structural diagram of the first reinforcing rib according to the embodiment of the present utility model;

[0033] Figure 9 It is yet another schematic structural diagram of the first reinforcing rib according to the embodiment of the present utility model;

[0034] Figure 10 It is the force transmission path diagram of the vehicle body sill structure according to the embodiment of the present utility model;

[0035] Explanation of reference numerals:

[0036] 1, sill beam; 2, battery pack; 3, connecting cross beam; 4, seat mounting cross beam; 5, floor; 6, middle channel;

[0037] 10. First screwing structure; 20. Second screwing structure; 11. Reinforcing beam; 12. Side step mounting plate; 101. Threshold beam reinforcing plate; 102. Inner threshold beam plate; 103. Threshold beam cavity; 104. Notch; 111. First reinforcing rib; 121. Second reinforcing rib; 41. Front seat mounting crossbeam; 42. Rear seat mounting crossbeam; 100. First cavity; 200. Second cavity; 1101. Main body part; 1102. Protruding part; 11011. First connection hole; 12011. Second connection hole. Detailed implementation manner

[0038] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0039] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0040] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0041] In the description of the present utility model, it should be noted that in this embodiment, the orientation words such as "upper, lower, left, right, front, rear" are defined based on the up and down direction, left and right direction, and front and rear direction of the vehicle. Among them, the up and down direction of the vehicle is also the height direction (Z direction) of the vehicle, the front and rear direction of the vehicle is also the length direction (X direction) of the vehicle, and the left and right direction of the vehicle is also the width direction (Y direction) of the vehicle. "Inner" and "outer" are defined based on the contour of the corresponding component. For example, the inside and outside of the vehicle are defined based on the contour of the vehicle. The side close to the middle of the vehicle is "inner", and the opposite is "outer".

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

[0043] Embodiment 1

[0044] This embodiment relates to a body sill structure, which can enable the side step mounting plate to effectively participate in collision force transmission, facilitating the improvement of the vehicle's side collision safety, and also helping to avoid the problem of insufficient electrocoating of the reinforcing beam.

[0045] In the prior art, the body sill position usually adopts a sill beam composed of a steel sheet metal welded structure. For vehicles equipped with side steps, the side steps are generally connected to the sill beam through sheet metal brackets. In this structure, the structure between the side step mounting plate and the sill beam is discontinuous, and it is difficult for the side step mounting plate to effectively participate in collision force transmission during a side collision. Moreover, in vehicles using an extruded aluminum reinforcing beam to connect the side step and the sill beam, since the extruded aluminum reinforcing beam is inside the sill beam, there is an easy problem of insufficient electrocoating of the extruded aluminum reinforcing beam.

[0046] Therefore, in view of the deficiencies in the body sill position of existing vehicles, this embodiment proposes a new body sill structure. In terms of the overall composition, as Figures 1 to 3 shown, the body sill structure of this embodiment includes a sill beam 1 extending in the front-rear direction of the vehicle, and a reinforcing beam 11 connected to the outside of the sill beam 1 in the left-right direction of the vehicle.

[0047] Among them, the reinforcing beam 11 is made of an extruded profile and extends in the front-rear direction of the vehicle, and a side step mounting plate 12 is provided on the reinforcing beam 11. The side step mounting plate 12 extends in the front-rear direction of the vehicle, and in the left-right direction of the vehicle, one side of the side step mounting plate 12 is connected to the reinforcing beam 11, and the other side of the side step mounting plate 12 extends outward relative to the reinforcing beam 12.

[0048] At this time, in the above structure, the side step mounting plate 12 forms a continuous structure with the sill beam through the extruded reinforcing beam structure. Thus, during a side collision, not only can the side step mounting plate 12 effectively participate in collision force transmission, but also the extended side step mounting plate 12 can increase the energy absorption space on the side of the vehicle body. At the same time, by arranging the extruded reinforcing beam 11 outside the sill beam 1, it also helps to avoid the problem of insufficient electrocoating of the structure of the reinforcing beam 11.

[0049] In addition, it is worth noting that the sill beam 1 in this embodiment is still similar to the sheet metal sill beam structure in existing vehicles, and is composed of a sill beam inner plate 101 and a sill beam reinforcing plate 102 that are relatively buckled, and a sill beam cavity 103 is formed inside the sill beam 1. However, unlike existing vehicles, a sill inner reinforcing beam is not provided in the sill beam cavity 103, but the reinforcing beam 11 is arranged on the outside of the sill beam 1 facing the vehicle exterior.

[0050] Based on the above overall introduction, specifically, referring to Figures 1 to 4 , and in combination with Figure 6As shown, in this embodiment, the sill beam 1 extends in the longitudinal direction of the vehicle, and the reinforcing beam 11 and the side step mounting plate 12 also extend in the longitudinal direction of the vehicle. And in the lateral direction of the vehicle, the reinforcing beam 11 is connected to the outer side of the sill beam 1 facing away from the vehicle, one side of the side step mounting plate 12 is connected to the reinforcing beam 11, and the other side extends outward relative to the reinforcing beam 11. As a preferred embodiment, the side step mounting plate 12 of this embodiment is made of extruded profiles, which is convenient for its preparation and can also ensure its structural strength.

[0051] And in specific implementation, both the reinforcing beam 11 and the side step mounting plate 12 are made of extruded profiles, and preferably made of aluminum profiles, which have the characteristics of high strength, good corrosion resistance, strong weldability and light weight. Also as a preferred embodiment, in this embodiment, as Figures 6 to 9 shown, the side step mounting plate 12 is integrally formed on the reinforcing beam 11. At this time, setting the side step mounting plate 12 and the reinforcing beam 11 to be integrally formed is beneficial to the preparation of both and can also ensure the reliability of the connection between the two.

[0052] It can be understood that in addition to the integrally formed connection method between the side step mounting plate 12 and the reinforcing beam 11, the side step mounting plate 12 can also be connected to the reinforcing beam 11 through a connection structure. At this time, using the connection structure to connect the side step mounting plate 12 and the reinforcing beam 11 can increase the flexibility of the side step mounting skeleton setting and is also convenient for its maintenance and replacement. Among them, the above connection structure can adopt, for example, a bolt pair or a riveting structure.

[0053] It is worth noting that the above-mentioned side step mounting plate 12 of this embodiment is mainly used as the basic skeleton of the vehicle side step. In specific implementation, generally, a side step decorative plate and the like will be further provided on the side step mounting plate 12 to wrap the side step mounting plate 12 to improve the overall aesthetics of the vehicle side step position. At the same time, in addition to the decorative plate, of course, according to the design requirements of specific vehicle models, taking the side step mounting plate 12 as the installation basis, a projection module located at the side step position can be further set, etc., so as to better improve the sense of technology of the vehicle and improve the overall quality of the vehicle.

[0054] Continue to refer to Figures 6 to 9 shown, in this embodiment, reinforcing ribs extending in the longitudinal direction of the vehicle are provided in both the reinforcing beam 11 and the side step mounting plate 12, and a plurality of cavities are separated in both the reinforcing beam 11 and the side step mounting plate 12 by the corresponding reinforcing ribs. Thus, by using the provided reinforcing ribs and the separated cavities, the structural strength of the reinforcing beam 11 and the side step mounting plate 12 can be further increased.

[0055] Specifically, the reinforcing ribs in the reinforcing beam 11 include horizontally arranged first reinforcing ribs 111, and multiple first reinforcing ribs 111 are arranged at intervals up and down. The multiple first reinforcing ribs 111 divide the inside of the reinforcing beam 11 into multiple first cavities 10. Among them, as a feasible implementation manner, as Figure 7 shown, the first reinforcing ribs 111 are arranged in a straight shape.

[0056] As another feasible implementation manner, as shown in Figure 8 and Figure 9 From the front-rear direction of the whole vehicle, each first reinforcing rib 111 is a "V"-shaped structure protruding to one side, and the protruding directions of adjacent first reinforcing ribs 111 are opposite. At this time, making the first reinforcing ribs 111 in a "V" shape can collapse and deform from the tip position of the "V" shape when the side collision is squeezed to a certain extent, so that the reinforcing beam 11 can fully absorb energy and deform, which helps to improve the energy absorption effect of the reinforcing beam 11, and the protruding directions of adjacent first reinforcing ribs 111 are opposite, which is also beneficial to ensuring that the reinforcing beam 11 has the required structural strength.

[0057] In this embodiment, still referring to Figures 6 to 9 shown, the reinforcing ribs in the side step mounting plate 12 include second reinforcing ribs 121. The second reinforcing ribs 121 are multiple and arranged at intervals along the width direction of the whole vehicle. Each of the second reinforcing ribs 121 extends along the height direction of the whole vehicle, and the multiple second reinforcing ribs 121 divide the inside of the side step mounting plate 12 into multiple second cavities 20.

[0058] It should be noted that in addition to arranging reinforcing ribs in both the reinforcing beam 11 and the side step mounting plate 12, it is also possible to arrange reinforcing ribs only in the reinforcing beam 11 or only in the side step mounting plate 12, and this is also feasible.

[0059] It should also be noted that in addition to adopting the above structural forms, the reinforcing ribs arranged in the reinforcing beam 11 and the side step mounting plate 12 can also be provided with multiple cross-connected reinforcing ribs in the reinforcing beam 11 or the side step mounting plate 12, or multiple cross-connected reinforcing ribs are arranged in both the reinforcing beam 11 and the side step mounting plate 12, and this is also feasible.

[0060] The side step mounting plate 12 of this embodiment, in terms of specific structure, in combination with Figures 6 to 9As shown, the side step mounting plate 12 includes a connecting portion connected to the bottom of the reinforcing beam 11 and an extending portion connected to the connecting portion. As a preferred embodiment, in the left-right direction of the whole vehicle, along the direction pointing to the reinforcing beam, that is, along the direction pointing to the connecting portion, the wall thickness of the side step mounting plate 12 is gradually increased, and the wall thickness of the reinforcing beam 11 is not less than the wall thickness of the connecting portion. With this setting, the overall stiffness of the sill structure can be gradually increased from the outside to the inside. By taking advantage of this feature, during a side collision of the whole vehicle, a step-by-step crush energy absorption structure can be formed at the body sill position, which helps to improve the side collision energy absorption effect.

[0061] During specific implementation, in the left-right direction of the whole vehicle, the wall thickness of the outer part of the side step mounting plate 12 is set to 2 mm, for example, the wall thickness of the middle part is set to 2.2 mm, 2.3 mm or 2.4 mm, etc., the wall thickness of the inner part is set to 2.5 mm, for example, and the thickness of the reinforcing beam 11 can be set to 2.5 mm or 2.6 mm, etc. In this way, during the collision process, the part with a thinner wall thickness deforms first, and then the part with a thicker wall thickness deforms, thus forming a stepped crush structure, which is beneficial to improving the side collision stability.

[0062] In this embodiment, preferably, the reinforcing beam 11 is connected to the sill beam 1 through a screwing structure, and the screwing structure includes a first screwing structure 10 arranged in the left-right direction of the whole vehicle and a second screwing structure 20 arranged in the up-down direction of the whole vehicle. At this time, the reinforcing beam 11 is connected to the sill beam 1 in two directions of the whole vehicle Y (left-right direction) and Z (up-down direction), which can ensure the connection stability and avoid the instability of the side step mounting plate during the collision process, affecting its energy absorption effect.

[0063] In terms of the specific structure, in combination with Figure 5 and Figure 6 and Figure 10 As shown, in this embodiment, a notch 104 arranged in the front-rear direction of the whole vehicle is provided on the side of the bottom of the sill beam 1 facing the outside of the vehicle. The reinforcing beam 11 includes a main body part 1101 embedded in the notch 104 and a protruding part 1102 located on the top of the main body part 1101. Among them, the protruding part 1102 abuts against the side wall of the sill beam 1, and the protruding part 1102 is connected to the sill beam 1 through the first screwing structure 10, and the main body part 1101 is connected to the sill beam 1 through the second screwing structure 20. And one side of the above-mentioned side step mounting plate 12 is specifically connected to the bottom outside the main body part 1101, and the other side of the side step mounting plate 12 extends outward in the vehicle width direction.

[0064] In combination with Figure 5 and Figure 6 and Figure 10As shown in the figure, on the protruding part 1102 of the reinforcing beam 11, a plurality of first connection holes 12011 are arranged at intervals in the front-rear direction of the whole vehicle. On the main body part 1101 of the reinforcing beam 11, a plurality of second connection holes 11011 are also arranged at intervals in the front-rear direction of the whole vehicle. The first screwing structure 10 passes through the first connection hole 12011 and is screwed to the sill beam 1, and the second screwing structure 20 passes through the second connection hole 11011 and is screwed to the sill beam 1. Moreover, preferably, the first connection holes 12011 and the second connection holes 11011 are arranged staggeredly in the front-rear direction of the whole vehicle, that is, the first screwing structure 10 and the second screwing structure 20 are arranged staggeredly in the front-rear direction of the whole vehicle. In this way, it is beneficial to improve the connection stability and connection strength between the reinforcing beam 11 and the sill beam 1.

[0065] Moreover, in this embodiment, by arranging a notch 104 on the sill beam 1 to accommodate the main body part 1101 of the reinforcing beam 11, the sill position can be arranged more compactly in the left-right direction of the whole vehicle, which helps to reduce space occupation and also helps to increase the stiffness of the sill position. At the same time, through the arrangement of the protruding part 1102, it is also beneficial to realize multi-directional connection of the screwing structure, and can better ensure the reliability of the connection between the reinforcing beam 11 and the sill beam 1.

[0066] In the body sill structure of this embodiment, the extruded reinforcing beam 11 structure forms a coherent structure between the side step mounting plate 12 and the sill beam 1. Thus, during a side collision, not only can the side step mounting plate 12 effectively participate in collision force transmission, but also the extended side step mounting plate 12 can increase the energy absorption space on the side of the vehicle body. At the same time, by arranging the extruded reinforcing beam 11 outside the sill beam 1, it also helps to avoid the problem of insufficient electrocoating of the reinforcing beam 11 structure, and has a very good use effect.

[0067] Embodiment Two

[0068] This embodiment relates to a vehicle, and at least one side in the middle of the vehicle is provided with the body sill structure in Embodiment One. Preferably, in the vehicle of this embodiment, looking back Figures 1 to 4 , and in combination with Figure 10 As shown, the body sill structures in Embodiment One are provided on both sides of the vehicle body. Of course, it can be understood that the body sill structure can also be provided only on one side of the vehicle body, and this is also feasible.

[0069] From Figure 1 and Figure 4 and in combination with Figure 10As shown in the figure, the body sill structures in Embodiment 1 are provided on both the left and right sides of the vehicle body. Specifically, there are two sill beams 1 arranged horizontally, and there are also two reinforcing beams 11 and side step mounting plates 12 arranged horizontally. A floor 5 is connected between the sill beams 1 on both sides, and a middle channel is provided in the middle of the floor 5 along the vehicle width direction. Moreover, a battery pack 2 is provided in the middle of the vehicle, which is specifically located below the floor 5 between the sill beams 1 on both sides.

[0070] For the convenience of installing the battery pack 2, in this embodiment, as a preferred implementation method, a connecting cross beam 3 arranged along the vehicle left-right direction is provided between the side step mounting plate 12 and the frame of the battery pack 2. At this time, the side step mounting plate 12 is connected to the frame of the battery pack 2 through the connecting cross beam 3, which can increase the overall torsional stiffness of the middle part of the vehicle body.

[0071] During specific implementation, connecting cross beams 3 are provided between the corresponding sides of the side step mounting plates 12 on both sides and the frame of the battery pack 2, that is, both ends of the connecting cross beam 3 are respectively connected to the side step mounting plate 12 and the frame. Moreover, preferably, both between the connecting cross beam 3 and the side step mounting plate 12 and between the connecting cross beam 3 and the frame of the battery pack 2 are connected together by screw connection. This can facilitate the installation and disassembly of the battery pack 2 and improve the convenience of assembling the battery pack 2.

[0072] As a feasible implementation method, the connecting cross beam 3 in this embodiment is in a long strip shape, and the cross section of the connecting cross beam 3 is rectangular. In this way, while ensuring sufficient structural strength, it is beneficial for lightweight design. At the same time, using the larger area side to be respectively connected to the reinforcing beam 11 and the battery pack 2 is also beneficial for increasing the connection area between the connecting cross beam 3 and the reinforcing beam 11, and the connection area between the connecting cross beam 3 and the battery pack 2, thereby facilitating ensuring the reliability of the connection.

[0073] It should be noted that from the perspective of the vehicle front-rear direction, the connection position of the connecting cross beam 3 and the frame of the battery pack 2 can be, for example, lower than its connection position with the side step mounting plate 12, so that the connecting cross beam 3 is arranged obliquely. Of course, it can be understood here that in addition to being arranged obliquely, it is also possible to arrange the connecting cross beam 3 horizontally as a whole.

[0074] In this embodiment, a seat mounting cross beam 4 connected to the sill beam 1 is also provided in the middle of the vehicle. The seat mounting cross beam 4 is connected to the floor 5 and is located above the battery pack 2. Moreover, preferably, the connecting cross beam 3 and the seat mounting cross beam 4 are arranged corresponding to each other in the vehicle up-down direction. Such an arrangement can make the connecting cross beam 3 and the seat mounting cross beam 4 form a double cross beam force transmission structure, which helps to improve the stability of side impact force transmission, improve the force transmission effect, and also can improve the overall torsional stiffness of the vehicle body by using the formed up-down double cross beam force transmission structure.

[0075] Specifically in terms of structure, the seat mounting crossbeam 4 includes a front seat mounting crossbeam 41 and a rear seat mounting crossbeam 42 respectively arranged on the left and right sides of the middle channel 6. The front seat mounting crossbeam 41 and the rear seat mounting crossbeam 42 are used for mounting the front row seats. And both ends of the front seat mounting crossbeam 41 are respectively connected to the middle channel 6 and the sill beam 1 on the corresponding side, and both ends of the rear seat mounting crossbeam 42 are also respectively connected to the middle channel 6 and the sill beam 1 on the corresponding side.

[0076] In this embodiment, there are two groups of connecting crossbeams 3 arranged left and right in the vehicle width direction. Each group includes a front connecting crossbeam and a rear connecting crossbeam arranged at intervals in the vehicle length direction. That is, there are four connecting crossbeams 3 arranged on the left and right sides of the battery pack 2 and spaced apart. One end of each connecting crossbeam 3 is connected to the bottom of the corresponding side of the reinforcing beam 11 by screw connection, and the other end is connected to the corresponding side of the frame of the battery pack 2 by screw connection. This is beneficial to improving the stability of the installation of the battery pack 2.

[0077] Moreover, each connecting crossbeam 2 is located below the battery pack 2 relative to the seat mounting crossbeam 3. Also, the two front connecting crossbeams and the front seat mounting crossbeams 41 on both sides of the middle channel 6 are correspondingly arranged in the vehicle up and down direction, and the two rear connecting crossbeams and the rear seat mounting crossbeams 42 on both sides of the middle channel 6 are correspondingly arranged in the vehicle up and down direction. In this way, a double-layer frame structure is formed among the seat mounting crossbeam 4, the reinforcing beam 11, the side step mounting plate 12 and the connecting crossbeam 3, thereby improving the overall torsional stiffness of the vehicle body.

[0078] Moreover, during a side collision of the vehicle, the force transmission path of the collision force can be as Figure 10 shown by the dotted line a and the dotted line b in the figure. The force transmission path a is to sequentially transmit along the side step mounting plate 12, the bottom of the reinforcing beam 11, and the connecting crossbeam 3 towards the frame direction of the battery pack 2. The force transmission path b is to sequentially transmit along the side step mounting plate 12, the reinforcing beam 11, the sill beam 1 towards the front seat mounting crossbeam 41 and the rear seat mounting crossbeam 42, and then transmit in the front and rear directions of the vehicle through the middle channel 6. This can improve the collision force dispersion effect.

[0079] By adopting the body sill structure of the first embodiment, the vehicle of this embodiment can utilize the coherent structure formed between the side step mounting plate 12 and the sill beam 1 through the extruded reinforcing beam 11 structure, enabling the side step mounting plate 12 to effectively participate in the collision force transmission during a side collision. And by using the extended side step mounting plate 12, the energy absorption space on the side of the vehicle body can be increased. At the same time, by arranging the extruded reinforcing beam 11 outside the sill beam 1, it also helps to avoid the problem of insufficient electrophoresis of the reinforcing beam structure, thereby facilitating the improvement of the vehicle quality and use safety performance.

[0080] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vehicle body door sill structure, characterized in that: It comprises a threshold beam (1) extending in the front-rear direction of the vehicle, and a reinforcing beam (11) connected to the side of the threshold beam (1) facing outward from the vehicle in the left-right direction of the vehicle; The reinforcing beam (11) is made of extruded profile and extends along the front-rear direction of the vehicle, and a side step mounting plate (12) is provided on the reinforcing beam (11); The side step mounting plate (12) extends in the front-rear direction of the vehicle, and in the left-right direction of the vehicle, one side of the side step mounting plate (12) is connected to the reinforcing beam (11), and the other side of the side step mounting plate (12) extends in the vehicle outward direction relative to the reinforcing beam (11).

2. The vehicle body rocker structure according to claim 1, characterized in that: The side step mounting plate (12) is made of extruded profile; The side step mounting plate (12) is integrally formed on the reinforcing beam (11), or the side step mounting plate (12) is connected to the reinforcing beam (11) via a connecting structure.

3. The vehicle body rocker structure according to claim 2, characterized in that: The reinforcing beam (11) and / or the side step mounting plate (12) are provided with reinforcing ribs extending in the front-rear direction of the entire vehicle, and the reinforcing beam (11) and the side step mounting plate (12) are both divided into a plurality of cavities by the corresponding reinforcing ribs.

4. The vehicle body rocker structure according to claim 3, characterized in that: In the left-right direction of the vehicle, the wall thickness of the side step mounting plate (12) is gradually increased along the direction pointing to the reinforcing beam (11), and the wall thickness of the reinforcing beam (11) is not less than the wall thickness of the side step mounting plate (12).

5. The vehicle body rocker structure according to claim 4, characterized in that: The reinforcing ribs in the reinforcing beam (11) include first reinforcing ribs (111) arranged horizontally, and the first reinforcing ribs (111) are a plurality of first reinforcing ribs (111) arranged at intervals in the upper and lower parts; Viewed from the front-rear direction of the vehicle, each of the first reinforcing ribs (111) is a "V"-shaped structure protruding toward one side, and adjacent first reinforcing ribs (111) protrude in opposite directions.

6. The vehicle body rocker structure according to any one of claims 1 to 5, characterized in that: The reinforcing beam (11) is connected to the threshold beam (1) via a screw connection structure, and the screw connection structure comprises a first screw connection structure (10) arranged along the left-right direction of the vehicle, and a second screw connection structure (20) arranged along the up-down direction of the vehicle.

7. The vehicle body rocker structure according to claim 6, characterized in that: A recess (104) arranged along the front-rear direction of the vehicle is provided on the side of the bottom of the sill beam (1) facing the outside of the vehicle, and the reinforcing beam (11) comprises a main body portion (1101) embedded in the recess (104), and a protruding portion (1102) located on the top of the main body portion (1101); The protruding portion (1102) abuts against the side wall of the threshold beam (1), and the protruding portion (1102) is connected to the threshold beam (1) via the first screw connection structure (10), and the main body portion (1101) is connected to the threshold beam (1) via the second screw connection structure (20).

8. A vehicle, characterized in that: At least one side of the middle portion of the vehicle is provided with the vehicle body rocker structure according to any one of claims 1 to 7.

9. The vehicle according to claim 8, characterized in that: A battery pack (2) located inside the door sill beam (1) is provided in the middle of the vehicle, and a connecting crossbeam (3) arranged along the left-right direction of the entire vehicle is provided between the reinforcing beam (11) and the frame of the battery pack (2).

10. The vehicle according to claim 9, characterized in that: A seat mounting cross beam (4) connected to the door sill beam (1) is provided in the middle of the vehicle, the seat mounting cross beam (4) is located above the battery pack (2), and the connecting cross beam (3) and the seat mounting cross beam (4) are arranged correspondingly in the upper and lower directions of the vehicle.

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