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 side pedal mounting plate connected with the doorsill 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 doorsill beam through an inserting structure, and the other side of the side pedal mounting plate extends towards the outside of the vehicle relative to the doorsill beam. According to the vehicle body doorsill structure, the side pedal mounting plate is mounted in an inserting mode, the side pedal mounting plate can be conveniently dismounted and maintained, the vehicle body assembling efficiency can be improved, the vehicle maintenance economy can be improved, meanwhile, the energy absorption space of the side portion of a vehicle body can be increased through the side pedal mounting plate, and the vehicle body doorsill structure is more attractive in appearance. And the side collision safety of the whole vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, in particular 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] The side step of a vehicle is mainly used to facilitate passengers getting on and off the vehicle. At the same time, it can also protect the vehicle body when the vehicle rolls over or is side-collided, and can also play a role in decorating the vehicle. In the existing vehicle models equipped with side steps, the side step mounting plate is arranged at the position of the vehicle body sill, usually on the outside of the sill beam, and the side step mounting plate is generally connected to the sill beam through a sheet metal bracket. However, this connection method makes the installation operation of the side step mounting plate complicated, and is not convenient for the disassembly, assembly and maintenance of the side step mounting plate. At the same time, it is about the position of the vehicle body sill where the side step mounting plate is located Summary of the Utility Model

[0003] In view of this, the utility model aims to provide a vehicle body sill structure, which is convenient for the disassembly and maintenance of the side step mounting plate, and helps to improve the vehicle body assembly efficiency and the overall vehicle collision safety

[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 in the front-rear direction of the whole vehicle, and a side step mounting plate connected to the sill beam

[0006] The side step mounting plate extends in the front-rear direction of the whole vehicle, and on the left-right direction of the whole vehicle, one side of the side step mounting plate is connected to the sill beam through a plug-in structure, and the other side of the side step mounting plate extends outward from the vehicle body relative to the sill beam

[0007] Furthermore, the cross-sections of the sill beam and the side step mounting plate are both arranged as multi-cavity energy-absorbing structures; and / or, at least one of the sill beam and the side step mounting plate is made of an extruded profile

[0008] Furthermore, a sill reinforcing rib extending in the front-rear direction of the whole vehicle is arranged in the sill beam, and the sill reinforcing rib includes a first reinforcing rib and a second reinforcing rib cross-connected to the first reinforcing rib; the first reinforcing rib is inclined upward in the direction pointing to the inside of the vehicle in the left-right direction of the whole vehicle, and during a side collision of the whole vehicle, the first reinforcing rib can form a side collision force transmission path with a seat mounting cross beam located on one side of the sill beam

[0009] Furthermore, a plurality of the first reinforcing ribs are arranged at intervals in the up-down direction of the whole vehicle, and from the front-rear direction of the whole vehicle, each of the first reinforcing ribs is a "V" - shaped structure protruding to one side; among them, the protruding directions of adjacent first reinforcing ribs are opposite

[0010] Furthermore, side step reinforcing ribs extending in the longitudinal direction of the vehicle body are provided inside the side step mounting plate, and a plurality of cavities are separated by the side step reinforcing ribs inside the side step mounting plate; and / or, in the left-right direction of the vehicle body, along the direction pointing to the sill beam, the wall thickness of the side step mounting plate is gradually increased.

[0011] Furthermore, the plug-in structure includes a plug-in groove provided on the sill beam and a plug-in block provided on the side step mounting plate and matching with the plug-in groove. The plug-in block is plugged into the plug-in groove in the longitudinal direction of the vehicle body.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] For the body sill structure of the present utility model, the side step mounting plate is connected to the sill beam through the plug-in structure, and the installation of the side step mounting plate is realized in a plug-in manner. Thereby, the disassembly and maintenance of the side step mounting plate are facilitated, which helps to improve the body assembly efficiency, and also can enhance the vehicle maintenance economy. At the same time, the side step mounting plate can be used to increase the energy absorption space on the side of the vehicle body, which is beneficial to improving the side collision safety of the whole vehicle and has a good use effect.

[0014] In addition, the cross-sections of the sill beam and the side step mounting plate are both set as multi-cavity energy absorption structures. Not only can the advantages of high structural strength of the multi-cavity structure be utilized to increase the structural strength of the sill position, but also the characteristics that the multi-cavity energy absorption structure can fully collapse and absorb energy during the side collision of the whole vehicle can be utilized to improve the energy absorption effect during the side collision of the vehicle body. At least one of the sill beam and the side step mounting plate is made of an extruded profile. In this way, it helps to reduce the weight of the sill position, is beneficial to the lightweight design of the vehicle body, and at the same time, by utilizing the characteristics of good collapse and energy absorption of the extruded profile, the collision energy absorption capacity of the sill position can also be increased.

[0015] Secondly, sill reinforcing ribs are provided inside the sill beam, and the sill beam reinforcing ribs are the first reinforcing rib and the second reinforcing rib that are cross-connected, which can improve the structural strength of the sill beam. The first reinforcing rib is inclined inward in the left-right direction of the vehicle body along the direction pointing to the interior of the vehicle. And during the vehicle collision, the first reinforcing rib can form a side collision force transmission path with the seat mounting cross beam. Thereby, it is beneficial to transmit the side collision force along the sill beam to the inner seat mounting cross beam, etc., so as to improve the side collision force transmission effect.

[0016] Furthermore, 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, so that the sill beam can fully absorb energy and deform, which helps to improve the energy absorption effect of the sill beam. And the protruding directions of adjacent first reinforcing ribs are opposite, which is also beneficial to ensuring the required structural strength of the sill beam.

[0017] In addition, side step reinforcing ribs are provided inside the side step mounting plate, and multiple cavities are separated inside the side step mounting plate. The advantages of high structural strength of the multi-cavity structure can also be utilized to increase the structural strength of the sill position. Moreover, the characteristics that the multi-cavity energy absorption structure can fully collapse and absorb energy during a vehicle side collision are used to improve the energy absorption effect during a vehicle side collision. The wall thickness of the side step mounting plate is gradually increased from the outside to the inside, which can make the overall stiffness of the sill structure gradually increase from the outside to the inside. By using this characteristic, during a vehicle side collision, a step-by-step collapse and energy absorption are formed at the vehicle body sill position, which helps to improve the side collision energy absorption effect. The plug-in structure adopts a matching plug-in groove and plug-in block, and its structure is simple and convenient for design and preparation.

[0018] 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 vehicle body sill structure as described above.

[0019] Further, a battery pack is provided inside the middle part of the vehicle and is located inside the sill beam, and a connecting cross beam arranged along the left-right direction of the whole vehicle is provided between the side step mounting plate and the frame of the battery pack.

[0020] Further, a slope is provided at the bottom of the side step mounting plate, and a connecting groove is provided at the bottom of the sill beam; one end of the connecting cross beam connected to the sill beam is connected in the connecting groove. Along the left-right direction of the whole vehicle, the slope is inclined downward in the direction pointing to the inside of the vehicle, and a connection is provided between one end of the connecting cross beam located in the connecting groove and the side step mounting plate.

[0021] Further, 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 whole vehicle.

[0022] For the vehicle of the present invention, by adopting the above-mentioned vehicle body sill structure, it is not only convenient for the disassembly and maintenance of the side step mounting plate, which helps to improve the vehicle body assembly efficiency and enhance the vehicle repair economy, but also the side step can be used to increase the energy absorption space on the side of the vehicle body, which is beneficial to improving the side collision safety of the whole vehicle.

[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 inclined surface provided at the bottom of the side step mounting plate can facilitate the inward transmission of the collision force at the side step mounting plate during a side collision. One end of the connecting cross beam is located in the connecting groove and is connected to the side step mounting plate. On the one hand, it can facilitate the connection between the connecting cross beam and the sill beam, and on the other hand, it also helps to transmit the collision force at the side step mounting plate to the connecting cross beam, thereby improving the transmission effect of the side collision force. The connecting cross beam and the seat mounting cross beam are arranged corresponding to each other 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 enhancing the force transmission effect. Description of the Drawings

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

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

[0026] Figure 2 is a schematic structural diagram of the sill beam according to the embodiment of the present utility model;

[0027] Figure 3 is a schematic structural diagram of the side step mounting plate according to the embodiment of the present utility model;

[0028] Figure 4 is a sectional view of the vehicle body sill structure according to the embodiment of the present utility model;

[0029] Figure 5 is a schematic structural diagram of a kind of first reinforcing rib in the sill beam according to the embodiment of the present utility model;

[0030] Figure 6 is a schematic structural diagram of another kind of first reinforcing rib in the sill beam according to the embodiment of the present utility model;

[0031] Figure 7 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;

[0032] Figure 8 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;

[0033] Figure 9 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;

[0034] Figure 10It is a diagram of the collision force transmission path of the vehicle body sill structure described in the embodiments of the present utility model during side impact;

[0035] Description of the reference numerals:

[0036] 2. Battery pack; 3. Connecting cross beam; 4. Seat mounting cross beam;

[0037] 11. Sill beam; 12. Side step mounting plate; 10. Insertion structure; 110. Sill reinforcement; 111. First reinforcement; 112. Second reinforcement; 120. Side step reinforcement; 121. Third reinforcement; 122. Fourth reinforcement; 123. Inclined surface; 124. Connecting groove; 41. Front seat mounting cross beam; 42. Rear seat mounting cross beam; 1101. Insertion groove; 1201. Insertion block; 100. First cavity; 200. Second cavity. Specific embodiments

[0038] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may 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 cannot be understood 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 understood 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 terms such as "upper, lower, left, right, front, and back" are defined based on the up-down direction, left-right direction, and front-back direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction (Z direction) of the vehicle, the front-back direction of the vehicle is also the length direction (X direction) of the vehicle, and the left-right direction of the vehicle is also the width direction (Y direction) of the vehicle. "Inside and outside" are defined based on the contour of the corresponding component. For example, the inside and outside of the vehicle are defined based on the vehicle contour. The side close to the middle of the vehicle is "inside", and the opposite is "outside".

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

[0043] Embodiment 1

[0044] This embodiment relates to a body sill structure, which facilitates the disassembly and repair of the side step mounting plate, and helps to improve the body assembly efficiency and the vehicle collision safety of the whole vehicle.

[0045] In the prior art, in the vehicle structure with side steps, the side step mounting plate is usually arranged outside the sill beam, and the side step mounting plate is generally connected to the sill beam through a sheet metal bracket. This connection method makes the installation operation of the side step mounting plate complex and is not conducive to the disassembly and repair of the side step mounting plate.

[0046] Therefore, in view of the above technical problems, this embodiment proposes a new body sill structure. And in the vehicle composition, as Figures 1 to 4 shown, the body sill structure includes a sill beam 11 extending along the front-back direction of the whole vehicle, and a side step mounting plate 12 connected to the sill beam 11.

[0047] Among them, the side step mounting plate 12 extends along the front-back direction of the whole vehicle, and on the left-right direction of the whole vehicle, one side of the side step mounting plate 12 is connected to the sill beam 11 through a plug-in structure 10, and the other side of the side step mounting plate 12 extends outward relative to the sill beam 11.

[0048] At this time, in the above structure, the side step mounting plate 12 is connected to the sill beam 11 through the plug-in structure 10, that is, the side step mounting plate 12 is installed by plugging. This not only facilitates the disassembly and repair of the side step mounting plate 12, helps to improve the body assembly efficiency, but also can improve the vehicle maintenance economy. Moreover, the side step mounting plate 12 can also increase the energy absorption space on the side of the body, which is beneficial to improving the side collision safety of the whole vehicle.

[0049] It should be noted that the side step mounting plate 12 in this embodiment is mainly used as the basic framework of the vehicle side step. In specific implementation, generally, side step decorative plates and the like will be further provided on the side step mounting plate 12 to wrap the side step mounting plate 12, so as to improve the overall aesthetics of the vehicle side step position. At the same time, in addition to the decorative plates, 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 and the like can be further provided, thereby better improving the technological sense of the vehicle and enhancing the overall vehicle quality.

[0050] Based on the above overall introduction, specifically, continue to refer to Figures 1 to 4 , in this embodiment, the sill beam 11 extends along the front-rear direction of the whole vehicle, and the side step mounting plate 12 also extends along the front-rear direction of the whole vehicle. One side of the side step mounting plate 12 is connected to the bottom of the sill beam 11 through the plug-in structure 10, and the other side of the side step mounting plate 12 extends outward relative to the sill beam 11.

[0051] Specifically, as a preferred implementation manner, the plug-in structure 10 in this embodiment, as shown in Figures 1 to 3 , the plug-in structure 10 includes a plug-in groove 1101 provided on the sill beam 11 and a plug-in block 1201 provided on the side step mounting plate 12 and matching the plug-in groove 1101. The plug-in block 1201 is inserted into the plug-in groove 1101 along the front-rear direction of the whole vehicle. At this time, through the plug-in cooperation between the plug-in block 1201 and the plug-in groove 1101, the side step mounting plate 12 can be connected to the bottom of the sill beam 11, and the plug-in structure 10 adopts the plug-in groove 1101 and the plug-in block 1201 which are matched and set, and its structure is simple and convenient for design and preparation.

[0052] It is worth mentioning here that in specific implementation, the plug-in block 1201 and the plug-in groove 1101 can usually be press-fitted together to ensure the stability of the side step mounting plate 12 after connection. And further, after the side step mounting plate 12 is inserted into the sill beam 11, the side step mounting plate 12 and the sill beam 11 can be fixed together through a screwing structure such as a screw to better ensure the reliability of the connection of the side step mounting plate.

[0053] As a preferred implementation manner, as shown in Figures 1 to 4 , the cross-sections of the sill beam 11 and the side step mounting plate 12 in this embodiment are both set as multi-cavity energy-absorbing structures. Such a setting can not only utilize the advantage of high strength of the multi-cavity structure to increase the structural strength of the sill position, but also utilize the characteristic that the multi-cavity energy-absorbing structure can fully collapse and absorb energy during a side collision of the whole vehicle to improve the energy-absorbing effect during a side collision of the vehicle body.

[0054] Also as a preferred embodiment, in this embodiment, at least one of the sill beam 11 and the side step mounting plate 12 is made of an extruded profile. Making at least one of the sill beam 11 and the side step mounting plate 12 made of an extruded profile can utilize the characteristics that extruded profiles are easy to prepare and generally have a relatively low weight, which helps to reduce the weight at the sill position and is beneficial to the lightweight design of the vehicle body. Moreover, by utilizing the characteristics that extruded profiles have better crush energy absorption characteristics, of course, it can also increase the collision energy absorption capacity at the sill position, which is beneficial to improving the side collision safety of the whole vehicle.

[0055] As a further preferred embodiment, in this embodiment, both the sill beam 11 and the side step mounting plate 12 are made of extruded profiles, preferably aluminum profiles, which have the characteristics of high strength, good corrosion resistance, strong weldability and light weight.

[0056] It should be noted that in addition to both the sill beam 11 and the side step mounting plate 12 being made of extruded profiles, it is also possible to only set the sill beam 11 to be made of extruded profiles, and of course, it is also possible to only set the side step mounting plate 12 to be made of extruded profiles, and this is also feasible.

[0057] In this embodiment, preferably, still referring to Figures 1 to 4 As shown, a sill reinforcement 110 extending in the longitudinal direction of the vehicle is provided in the sill beam 11, and the sill reinforcement 110 includes a first reinforcement 111 and a second reinforcement 112 cross-connected to the first reinforcement 111. Among them, the first reinforcement 111 is inclined in the direction pointing to the interior of the vehicle in the left-right direction of the vehicle. And the cross-connected first reinforcement 111 and second reinforcement 112 divide the interior of the sill beam 11 into a plurality of first cavities 100.

[0058] By providing the sill reinforcement 110 in the sill beam 11, and making the sill beam reinforcement 110 adopt the cross-connected first reinforcement 111 and second reinforcement 112, and dividing the interior of the sill beam 11 into a plurality of first cavities 100, in this way, the structural strength of the sill beam 11 can be improved, and the first reinforcement 111 is inclined in the direction pointing to the interior of the vehicle in the vehicle longitudinal direction, which is also beneficial to the side collision force being transmitted obliquely upward along the sill beam 11.

[0059] It should be noted here that the layout direction of the second reinforcement 112 is not limited in this embodiment. It can be arranged obliquely as shown in Figure 2 , or can be arranged vertically in the vehicle height direction, as long as it is ensured that the second reinforcement 112 is connected to the first reinforcement 111.

[0060] On the basis that the sill beam reinforcing rib 110 is provided with a first reinforcing rib 111 and a second reinforcing rib 112 that are cross-connected, and the first reinforcing rib 111 is inclined upward in the direction pointing to the vehicle interior, during a side impact of the whole vehicle, the first reinforcing rib 111 of this embodiment can form a side impact force transmission path with the seat mounting cross member 4 located on one side of the sill beam 11. This can facilitate the transmission of the side impact force along the sill beam 11 to the seat mounting cross member 4 on the inner side, thereby improving the side impact force transmission effect.

[0061] In this embodiment, there are multiple first reinforcing ribs 111 arranged at intervals in the up-and-down direction of the whole vehicle. As a preferred embodiment, the multiple first reinforcing ribs 111 can be arranged Figure 4 in a straight shape and inclined upward in the direction of the vehicle interior. It can be understood here that in addition to adopting the above structural form, each first reinforcing rib 111 can also adopt other structural forms. For example, the multiple first reinforcing ribs 111 can also be arranged Figure 5 and Figure 6 as shown.

[0062] Specifically, referring to Figure 5 and Figure 6 , from the front-to-back direction of the whole vehicle, each first reinforcing rib 111 is a "V"-shaped structure protruding to one side. Among them, the protruding directions of adjacent first reinforcing ribs 111 are opposite. In this way, the first reinforcing rib 111 is in a "V" shape. At this time, when the side impact is squeezed to a certain extent, it collapses and deforms from the tip position of the "V" shape, enabling the sill beam 11 to fully absorb energy and deform, which helps to improve the energy absorption effect of the sill beam 11. And the opposite protruding directions of adjacent first reinforcing ribs 111 can also help ensure that the sill beam 11 has the required structural strength.

[0063] As shown by Figure 1 and combined with Figures 3 to 6 , in this embodiment, the side step mounting plate 12 is also internally provided with a side step reinforcing rib 120 extending in the front-to-back direction of the whole vehicle. The side step mounting plate is divided into multiple cavities by the side step reinforcing rib 120. At this time, it can also utilize the advantage of high structural strength of the multi-cavity structure to increase the structural strength of the sill position, and utilize the characteristic that the multi-cavity energy absorption structure can fully collapse and absorb energy during a side impact of the whole vehicle to improve the energy absorption effect during a side impact of the vehicle body.

[0064] It is worth mentioning that by providing a sill beam reinforcing rib 110 extending in the front-to-back direction of the whole vehicle in the sill beam 11 and combining with the side step reinforcing rib 120 extending in the front-to-back direction of the whole vehicle provided in the side step mounting plate 12, it can further increase the structural strength of the sill position and can also further improve the energy absorption effect during a side impact of the vehicle body.

[0065] Referring to Figure 1 , Figures 3 to 6As shown, the side step reinforcing ribs 120 within the side step mounting plate 12 include third reinforcing ribs 121 and fourth reinforcing ribs 122 that are cross - connected to the third reinforcing ribs 121. Among them, there are multiple third reinforcing ribs 121 and fourth reinforcing ribs 122 arranged at intervals. Each third reinforcing rib 121 is arranged along the vehicle height direction, and each fourth reinforcing rib 122 is generally in a "V" shape and extends along the vehicle width direction.

[0066] In addition, the cross - connected third reinforcing ribs 121 and fourth reinforcing ribs 122 divide the inside of the side step mounting plate 12 into multiple second parting cavities. At this time, the settings of the third reinforcing ribs 121 and fourth reinforcing ribs 122 cause multiple second cavities 200 to be separated within the side step mounting plate 12, which can further improve the structural strength of the side step mounting plate 12. Moreover, by designing the fourth reinforcing rib 122 in a "V" shape, when the side step mounting plate 12 is squeezed to a certain extent, it collapses and deforms from the tip position of the "V" shape, enabling the side step mounting plate 12 to fully absorb energy through deformation, which is beneficial to improving the energy absorption effect of the side step mounting plate 12.

[0067] As a preferred implementation method, in this embodiment, in the vehicle's left - right direction, along the direction pointing to the sill beam 11, the wall thickness of the side step mounting plate 12 is gradually increased. With this setting, the overall stiffness of the sill structure can be gradually increased from the outside to the inside. Utilizing this feature, during a side impact of the vehicle, a step - by - step collapse and energy absorption can be formed at the vehicle body sill position, which helps to improve the side impact energy absorption effect.

[0068] Specifically, in the vehicle's left - right direction, 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 sill beam 11 can be set to 2.5 mm or 2.6 mm, etc. Moreover, it is worth noting here that the wall thickness of the sill beam 11 should generally be greater than the maximum wall thickness of the side step mounting plate 12. In this way, during a collision, the part with a thinner wall thickness deforms first, and then the part with a thicker wall thickness deforms, thus forming a stepped collapse structure, which is beneficial to improving the side impact stability.

[0069] The body sill structure of this embodiment enables the side step mounting plate 12 to be connected to the sill beam 11 in a plug - in manner. In this way, not only is it convenient for the disassembly and repair of the side step mounting plate 12, which helps to improve the vehicle body assembly efficiency, but it also improves the vehicle's repair economy. At the same time, using the side step mounting plate can also increase the energy absorption space on the side of the vehicle body, which is beneficial to improving the side impact safety of the whole vehicle.

[0070] Embodiment Two

[0071] 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. In the vehicle of this embodiment, as Figures 7 to 10As shown, as a preference, the vehicle body sill structure 1 in the first embodiment is provided on both sides of the vehicle body. Of course, it is understandable that the vehicle body sill structure 1 can also be provided on only one side of the vehicle body, which is also feasible.

[0072] Continue to view Figures 7 to 10 As shown, the vehicle body sill structure of the first embodiment is provided on both the left and right sides of the vehicle body, specifically, two sill beams 11 are arranged on the left and right sides, and two side step mounting plates 12 are also arranged on the left and right sides. In addition, a battery pack 2 is provided inside the sill beam 11 in the middle of the vehicle, that is, the battery pack 2 is located between the sill beams 11 on the left and right sides.

[0073] To facilitate the installation of the battery pack 2, in this embodiment, as a preferred implementation, a connecting crossbeam 3 arranged along the left-right direction of the vehicle 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 crossbeam 3, which can increase the overall torsional rigidity of the middle part of the vehicle body.

[0074] In specific implementation, connecting crossbeams 3 are provided between the side step mounting plates 12 on both sides and the corresponding sides of the frame of the battery pack 2, that is, the two ends of the connecting crossbeams 3 are respectively connected to the side step mounting plates 12 and the frame. And as a preferred embodiment, the connecting crossbeams 3 and the side step mounting plates 12, as well as the connecting crossbeams 3 and the frame of the battery pack 2 are all screwed together. This is conducive to the installation and removal of the battery pack 2, and is conducive to improving the convenience of assembling the battery pack 2.

[0075] As a preferred embodiment, Figures 7 to 9 Combined with Figure 1 and Figure 4 As shown, in this embodiment, a slope 123 is provided at the bottom of the side step mounting plate 12, and a connecting groove 124 is provided at the bottom of the door sill beam 11. Among them, in the left and right directions of the whole vehicle, the slope 123 is set to be inclined downward in the direction pointing to the connecting groove 124. The connecting groove 124 is specifically located on the side of the slope 123 close to the inside of the vehicle. In addition, one end of the connecting beam 3 connected to the door sill beam 11 is connected to the connecting groove 124, and the end is connected to the side step mounting plate, and the other end of the connecting beam 3 is connected to the frame of the battery pack 2.

[0076] At this time, the inclined surface 123 arranged at the bottom of the side step mounting plate 12 can facilitate the inward transmission of the collision force at the side step mounting plate 12 in case of a side collision. One end of the connecting beam 3 is located in the connecting groove 124 and is connected to the side step mounting plate 12. On the one hand, it can facilitate the connection between the connecting beam 3 and the threshold beam 11, and on the other hand, it can also help to transmit the collision force at the side step mounting plate 12 to the connecting beam 3, thereby improving the transmission effect of the side collision collision force, so that the collision force can also be fully decomposed with the help of the frame of the battery pack 2, which is conducive to improving the dispersion effect of the collision force.

[0077] It should be noted that the so-called connecting beam 3 is connected to the side step mounting plate 12 at one end in the connecting groove 124, that is, the projections of the connecting beam 3 and the side step mounting plate 12 in the left-right direction of the vehicle at least partially overlap.

[0078] In a specific implementation, the connecting beam 3 is in the shape of an elongated strip, and the cross section of the connecting beam 3 is in a rectangular shape. This can facilitate lightweight design while ensuring sufficient structural strength. It can also help increase the connection area between the connecting beam 3 and the connecting groove 124, as well as the connection area between the connecting beam 3 and the battery pack 2, thereby ensuring the reliability of the connection.

[0079] It is worth noting that, from the front-to-back direction of the vehicle, the connection position between the connecting beam 3 and the frame of the battery pack 2 can be, for example, lower than the connection position between the connecting beam 3 and the side step mounting plate 12, so that the connecting beam 3 is arranged tilted. Of course, it can be understood that in addition to the tilted arrangement of the connecting beam 3, it is also possible to set the connecting beam 3 as a whole to be arranged horizontally.

[0080] In this embodiment, a seat mounting crossbeam 4 connected to the door sill beam 11 is also provided in the middle of the vehicle, the seat mounting crossbeam 4 is located above the battery pack 2, and the connecting crossbeam 3 and the seat mounting crossbeam 4 are correspondingly arranged in the upper and lower directions of the vehicle. Such an arrangement enables the connecting crossbeam 3 and the seat mounting crossbeam 4 to form a double crossbeam force transmission structure, which helps to improve the stability of side impact force transmission and the force transmission effect, and the upper and lower double crossbeam force transmission structure formed can also improve the overall torsional rigidity of the vehicle body.

[0081] In terms of specific structure, Figure 7 As shown, the seat mounting cross beam 4 includes a front seat mounting cross beam 41 and a rear seat mounting cross beam 42 arranged at intervals along the length direction of the vehicle, and the front seat mounting cross beam 41 and the rear seat mounting cross beam 42 are used for mounting the front row of seats. Moreover, the front seat mounting cross beam 41 and the rear seat mounting cross beam 42 are both connected between the left and right sill beams, that is, the two ends of the front seat mounting cross beam 41 are respectively connected to the left and right sill beams 11, and the two ends of the rear seat mounting cross beam 42 are also respectively connected to the left and right sill beams 11. At this time, when the vehicle is hit sideways, the collision force can be transmitted along the sill beam 11 to the front seat mounting cross beam 41 and the rear seat mounting cross beam 42, thereby improving the collision force dispersion effect, and the structural strength of the seat mounting cross beam 4 can also be improved by utilizing the structural strength of the sill beam 11.

[0082] In this embodiment, Figure 8As shown, the connecting cross beams 3 are arranged in two groups left and right along the width direction of the whole vehicle. Each group includes a front connecting cross beam and a rear connecting cross beam arranged at intervals along the length direction of the whole vehicle. That is, there are four connecting cross beams 3 arranged on the left and right sides of the battery pack 2 at intervals. One end of each connecting cross beam is screwed to the connecting groove 124 on the side step mounting plate 12 on the corresponding side, and the other end is screwed to the corresponding side of the frame of the battery pack 2, which is beneficial to improving the stability of the installation of the battery pack 2.

[0083] Moreover, each connecting cross beam 2 is located below the battery pack relative to the seat mounting cross beam 3. In addition, the two front connecting cross beams and the front seat mounting cross beam 41 are arranged corresponding to each other in the up and down direction of the whole vehicle, and the two rear connecting cross beams and the rear seat mounting cross beam 42 are arranged corresponding to each other in the up and down direction of the whole vehicle. In this way, a double-layer frame structure is formed among the seat mounting cross beam 4, the sill 11, the side step mounting plate 12 and the connecting cross beam 3, which can improve the overall torsional stiffness of the vehicle body.

[0084] In this embodiment, when the vehicle has a side collision, multiple force transmission paths are formed between the vehicle body sill structure 1 and the surrounding components, such as Figure 10 As shown, force transmission path a: The collision force is transmitted from the side step mounting plate 12 through the sill beam 11 and the connecting cross beam 3 to the frame of the battery pack 2. Force transmission paths b, c, d: The collision force is transmitted from the side step mounting plate 12 through the bottom of the sill beam 11 obliquely upward to the seat mounting cross beam 4, or along the guidance of multiple first reinforcing ribs 111 in the sill beam 11, so that the collision force is transmitted obliquely upward to the seat mounting cross beam 4.

[0085] For the vehicle of this embodiment, by adopting the vehicle body sill structure 1 in the first embodiment, it is not only convenient for the disassembly and maintenance of the side step mounting plate 12, which helps to improve the vehicle body assembly efficiency and the vehicle repair economy, but also the side pedal can be used to increase the energy absorption space on the side of the vehicle body, which is beneficial to improving the side collision safety of the whole vehicle.

[0086] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle body door sill structure, characterized in that: It comprises a threshold beam (11) extending along the front-rear direction of the whole vehicle, and a side step mounting plate (12) connected to the threshold 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 door sill beam (11) via a plug-in structure (10), and the other side of the side step mounting plate (12) extends in the vehicle outer direction relative to the door sill beam (11).

2. The vehicle body rocker structure according to claim 1, characterized in that: The cross sections of the door sill beam (11) and the side step mounting plate (12) are both configured as multi-cavity energy absorbing structures; and / or, At least one of the door sill beam (11) and the side step mounting plate (12) is made of extruded profile.

3. The vehicle body rocker structure according to claim 2, characterized in that: The sill beam (11) is provided with a sill reinforcement rib (110) extending in the front-rear direction of the vehicle, and the sill reinforcement rib (110) comprises a first reinforcement rib (111) and a second reinforcement rib (112) cross-connected with the first reinforcement rib (111); The first reinforcing rib (111) is arranged in an inclined direction pointing inwards of the vehicle in the left-right direction of the vehicle, and when the vehicle is subjected to a side collision, the first reinforcing rib (111) can form a side collision force transmission path with the seat mounting cross beam (4) located on one side of the door sill beam (11).

4. The vehicle body rocker structure according to claim 3, characterized in that: The first reinforcing ribs (111) are multiple and arranged at intervals along the vertical direction of the vehicle, and when viewed from the front-rear direction of the vehicle, each of the first reinforcing ribs (111) is a "V"-shaped structure protruding to one side; Wherein, the protruding directions of adjacent first reinforcing ribs (111) are opposite.

5. The vehicle body rocker structure according to claim 2, characterized in that: The side step mounting plate (12) is provided with a side step reinforcing rib (120) extending in the front-rear direction of the vehicle, and a plurality of cavities are separated in the side step mounting plate by the side step reinforcing rib (120); and / or, In the left-right direction of the vehicle, along the direction pointing to the door sill beam (11), the wall thickness of the side step mounting plate (12) is gradually increased.

6. The vehicle body rocker structure according to any one of claims 1 to 5, characterized in that: The plug-in structure (10) comprises a plug-in slot (1101) provided on the door sill beam, and a plug-in block (1201) matched with the plug-in slot (1101) and provided on the side step mounting plate (12), wherein the plug-in block (1201) is plugged into the plug-in slot (1101) along the front-rear direction of the vehicle.

7. 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 6.

8. The vehicle according to claim 7, characterized in that: A battery pack (2) located inside the door sill beam (11) 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 side step mounting plate (12) and the frame of the battery pack (2).

9. The vehicle according to claim 8, characterized in that: The bottom of the side step mounting plate (12) is provided with an inclined surface (123), and the bottom of the door sill beam (11) is provided with a connecting groove (124); One end of the connecting crossbeam (3) connected to the door sill beam (11) is connected to the connecting groove (124), and along the left-right direction of the vehicle, the inclined surface (123) is arranged to be inclined downward in a direction pointing to the inside of the vehicle, and one end of the connecting crossbeam (3) located in the connecting groove (124) is connected to the side step mounting plate (12).

10. The vehicle according to claim 8, characterized in that: A seat mounting cross beam (4) connected to the door sill beam (11) is provided in the middle of the vehicle, the seat mounting cross beam (4) is located above the battery pack, and the connecting cross beam (3) and the seat mounting cross beam (4) are arranged correspondingly in the up and down direction of the vehicle.

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