Vehicle body structure and vehicle

Abstract

The utility model provides a vehicle body structure and a vehicle. The vehicle body structure comprises a vehicle body framework and a battery pack located at the bottom of the vehicle body framework. A side frame of the battery pack is connected to the bottom of a doorsill beam in the vehicle body framework, and a side pedal mounting plate is arranged at the bottom of the doorsill beam; the side pedal mounting plate extends in the front-back direction of the whole vehicle and is opposite to the side frame in the left-right direction of the whole vehicle, and in the left-right direction of the whole vehicle, one side of the side pedal mounting plate is connected to the bottom of the doorsill beam, and the other side of the side pedal mounting plate extends to the outer side of the doorsill beam. According to the vehicle body structure, the side frame and the side pedal mounting plate extending to the outer side of the doorsill beam are oppositely arranged, so that the side pedal mounting plate and the battery pack frame form another force transmission path located below the vehicle body framework, and the extension of the side pedal mounting plate can be utilized to increase the energy absorption space of the side part of the vehicle body; and the battery pack frame can be fully utilized for transmitting and absorbing side collision energy, so that the occurrence of vehicle body collision instability can be avoided.

Description

Technical Field

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

[0002] Automobile crash safety, also known as "automobile passive safety", refers to the performance that an automobile can protect the occupants inside the vehicle or pedestrians outside the vehicle from being injured or reducing the degree of injury to the lowest level after a traffic accident occurs. This performance is directly related to the life safety of passengers and is an important consideration factor in automobile design.

[0003] In new energy vehicle models equipped with a battery pack, the side step mounting plate is generally arranged on the sill beam through a connecting bracket. During a vehicle side collision, both the side step mounting plate and the battery pack have limited effects on side collision force transmission and energy absorption. It is easy to cause the vehicle body to lose stability during the collision due to poor force transmission at the battery pack position, which is not conducive to improving the side collision safety of the whole vehicle. Summary of the Utility Model

[0004] In view of this, the utility model aims to provide a vehicle body structure to avoid the occurrence of vehicle body structure collision instability and improve the collision safety of the whole vehicle.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A vehicle body structure includes a vehicle body frame and a battery pack located at the bottom of the vehicle body frame; the side frame of the battery pack is connected to the bottom of the sill beam in the vehicle body frame, and a side step mounting plate is provided at the bottom of the sill beam; the side step mounting plate extends along the front-rear direction of the whole vehicle, and is arranged opposite to the side frame in the left-right direction of the whole vehicle. Along the left-right direction of the whole vehicle, one side of the side step mounting plate is connected to the bottom of the sill beam, and the other side of the side step mounting plate extends to the outside of the sill beam.

[0007] Further, a gap is left between the side step mounting plate and the side frame in the left-right direction of the whole vehicle.

[0008] Further, the gap is between 3 mm and 10 mm.

[0009] Further, the side step mounting plate and / or the side frame are connected to a connecting sleeve located at the bottom of the sill beam through a connecting piece, and the connecting sleeves are arranged at intervals along the front-rear direction of the whole vehicle.

[0010] Further, the cross-sections of the side step mounting plate and the side frame along the left-right direction of the whole vehicle are both set as multi-chamber energy-absorbing structures.

[0011] Furthermore, both the side step mounting plate and the side frame are made of extruded profiles, and reinforcing ribs are provided in both the side step mounting plate and the side frame; the cross-sections of the side step mounting plate and the side frame are separated by the corresponding reinforcing ribs to form a multi-cavity energy absorption structure.

[0012] Furthermore, the side step mounting plate includes a connecting portion connected to the sill beam and an extending portion connected to the connecting portion; the reinforcing ribs in the side step mounting plate include a first reinforcing rib arranged in the extending portion along the up-and-down direction of the vehicle body, and / or a second reinforcing rib arranged in the connecting portion along the left-and-right direction of the vehicle body; a plurality of first cavities arranged in sequence along the left-and-right direction of the vehicle body are separated in the extending portion by the first reinforcing rib, and a plurality of second cavities arranged in sequence along the up-and-down direction of the vehicle body are separated in the connecting portion by the second reinforcing rib.

[0013] Furthermore, the side frame includes a frame main body and a connecting plate located on one side of the frame main body, and the connecting plate is connected to the sill beam; the reinforcing ribs in the side frame include a third reinforcing rib arranged in the connecting plate along the left-and-right direction of the vehicle body, and a plurality of third cavities arranged in sequence along the up-and-down direction of the vehicle body are separated in the connecting plate by the third reinforcing rib.

[0014] Furthermore, the reinforcing ribs in the side frame include a plurality of fourth reinforcing ribs arranged in the frame main body along the left-and-right direction of the vehicle body; a plurality of fourth cavities arranged in sequence along the up-and-down direction of the vehicle body are separated in the frame main body by the fourth reinforcing rib, and some of the fourth reinforcing ribs are arranged corresponding to the third reinforcing rib in the left-and-right direction of the vehicle body.

[0015] Compared with the prior art, the present utility model has the following advantages:

[0016] In the vehicle body structure of the present utility model, by arranging the side frame in the battery pack opposite to the side step mounting plate extending to the outside of the sill beam, when the vehicle has a side collision, the side step mounting plate and the battery pack frame can form another force transmission path under the vehicle body skeleton. This not only can increase the energy absorption space on the side of the vehicle body by using the extension of the side step mounting plate, but also can fully utilize the battery pack frame to transfer and absorb the side collision energy, which helps to avoid the occurrence of vehicle body collision instability and is beneficial to improving the side collision safety of the vehicle.

[0017] In addition, a gap is left between the side step mounting plate and the side frame. When the side collision of the vehicle is relatively minor, it can avoid impacting the battery pack, thus helping to prevent affecting the normal operation of the battery pack. The gap between the side step mounting plate and the side frame is set between 3 - 10 mm, which can meet the buffer distance requirements of the side step mounting plate during a minor side collision, and at the same time, it is also beneficial for the layout of the battery pack and the side step mounting plate in the vehicle body. A connecting sleeve is provided at the bottom of the sill beam to connect the side step mounting plate and the side frame, which facilitates the connection between the two and the sill beam. The cross-sections of both the side step mounting plate and the side frame are multi-chamber energy-absorbing structures. This not only increases the structural strength of the side step mounting plate and the side frame by utilizing the multi-chamber structure but also enhances the energy-absorbing capacity of the side step mounting plate and the side frame during a collision, which is beneficial for increasing the safety of the battery pack.

[0018] Furthermore, the side step mounting plate and the battery pack frame are integrally formed, which is beneficial for the preparation of both and can also ensure the structural reliability of both. The setting of multiple reinforcing ribs is conducive to forming a multi-chamber energy-absorbing structure. The first reinforcing rib in the extension part is arranged along the up-and-down direction of the whole vehicle, and the first cavities are arranged in sequence along the left-and-right direction of the whole vehicle. This can make there be no transverse (i.e., left-and-right direction of the whole vehicle) reinforcing ribs in the side step mounting plate, and at the same time, it is also a single-chamber structure in the Z direction (i.e., up-and-down direction of the whole vehicle). It can make the side step mounting plate become an energy-absorbing area during a side collision of the whole vehicle, and it can gradually collapse from the outside to the inside during a side collision to achieve effective side collision energy absorption; the second reinforcing rib in the connecting part is arranged along the left-and-right direction of the whole vehicle, and the second cavities are arranged in sequence along the up-and-down direction of the whole vehicle. This can make there be transverse reinforcing ribs in the connecting part, and at the same time, it is also a multi-chamber structure in the Z direction (i.e., up-and-down direction of the whole vehicle), which can ensure the structural strength of the connecting part and the reliability of the connection between the side step mounting skeleton and the sill beam.

[0019] In addition, the third reinforcing rib in the connecting plate is arranged along the left-and-right direction of the whole vehicle, and the third cavities are arranged in sequence along the up-and-down direction of the whole vehicle. This can make there be transverse reinforcing ribs in the connecting plate, and at the same time, it is also a multi-chamber structure in the Z direction (i.e., up-and-down direction of the whole vehicle), which can ensure the structural strength of the connecting plate and the reliability of the connection between the battery pack and the sill beam. The fourth reinforcing rib is provided in the frame body and divides it into multiple fourth cavities. At the same time, some of the fourth reinforcing ribs are arranged corresponding to the third reinforcing rib, which can also make the frame body and the whole side frame have better structural strength, increase the side stiffness of the battery pack, and provide better collision protection for the battery pack.

[0020] In addition, another object of the present utility model is to propose a vehicle, and the vehicle is provided with the vehicle body structure as described above.

[0021] For the vehicle of the present utility model, by setting the vehicle body structure as above, it is beneficial to improve the side collision safety of the vehicle. Description of the Drawings

[0022] The attached drawings, which 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 of the present utility model. In the attached drawings:

[0023] Figure 1 It is a schematic structural diagram of a part of the vehicle body structure according to an embodiment of the present utility model from a first perspective;

[0024] Figure 2 It is a schematic structural diagram of a part of the vehicle body structure according to an embodiment of the present utility model from a second perspective;

[0025] Figure 3 It is a schematic structural diagram of a part of the vehicle body structure according to an embodiment of the present utility model from a third perspective;

[0026] Figure 4 is Figure 3 a cross-sectional view taken along the A-A direction in

[0027] Figure 5 It is a schematic structural diagram of the side step mounting plate according to an embodiment of the present utility model;

[0028] Figure 6 It is a schematic structural diagram of the side frame according to an embodiment of the present utility model.

[0029] Explanation of reference numerals:

[0030] 1, sill beam; 2, side step mounting plate; 3, side frame; 4, connecting sleeve; 5, connecting piece;

[0031] 100, gap; 101, outer sill beam plate; 102, inner sill beam plate;

[0032] 201, connecting part; 2011, second reinforcing rib; 2012, second cavity; 202, extending part; 2021, first reinforcing rib; 2022, first cavity;

[0033] 301, frame main body; 3011, fourth reinforcing rib; 3012, fourth cavity; 302, connecting plate; 3021, third reinforcing rib; 3022, third cavity. Detailed implementation manners

[0034] 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.

[0035] 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 component 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.

[0036] 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 components. 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.

[0037] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0038] This embodiment relates to a vehicle body structure, which aims to optimize its own structure to solve the problem in the prior art that when the vehicle is side-collided, the side step mounting plate 2 and the battery pack have limited effects on side-collision force transmission and energy absorption, and it is easy to cause the vehicle body to lose stability due to poor force transmission at the battery pack position, which is not conducive to improving the side-collision safety of the whole vehicle.

[0039] In terms of the overall composition, the vehicle body structure of this embodiment includes a vehicle body skeleton and a battery pack located at the bottom of the vehicle body skeleton. The side frame 3 of the battery pack is connected to the bottom of the sill beam 1 in the vehicle body skeleton, and a side step mounting plate 2 is provided at the bottom of the sill beam 1. The side step mounting plate 2 extends along the front-rear direction of the vehicle, and is arranged opposite to the side frame 3 in the left-right direction of the vehicle. Along the left-right direction of the vehicle, one side of the side step mounting plate 2 is connected to the bottom of the sill beam 1, and the other side of the side step mounting plate 2 extends to the outside of the sill beam 1.

[0040] For the vehicle body structure described in this embodiment, by arranging the side frame in the battery pack opposite to the side step mounting plate 2 extending to the outside of the sill beam 1, when the vehicle is side-collided, another force transmission path located below the vehicle body skeleton can be formed between the side step mounting plate 2 and the battery pack frame. This can not only utilize the extension of the side step mounting plate 2 to increase the energy absorption space on the side of the vehicle body, but also make full use of the battery pack frame for the transmission and absorption of side-collision energy, which helps to avoid the occurrence of vehicle body collision instability and is conducive to improving the side-collision safety of the whole vehicle.

[0041] Based on the above overall introduction, some exemplary structures of the vehicle body structure described in this embodiment are asFigures 1 to 3 As shown. The outer side of the bottom of the sill beam 1 is connected to the side step mounting plate 2, and the inner side of the bottom of the sill beam 1 is connected to the side frame 3. The sill beam 1 connects the side step mounting plate 2 and the side frame 3 together. At the same time, the sill beam 1 is also stacked with the side step mounting plate 2 and the side frame 3 in the vehicle height direction, which is beneficial to increasing the energy absorption space at the bottom of the vehicle body structure in the vehicle height direction, thereby being beneficial to improving the safety performance of the battery pack during side impact.

[0042] As Figure 4 As shown, as a preferred embodiment, in the vehicle left-right direction, a gap 100 is left between the side step mounting plate 2 and the side frame 3. The setting of the gap 100 here can avoid the collision force being transmitted from the side step mounting plate 2 and the side frame 3 to the battery pack and causing an impact on the battery pack when the side impact degree of the vehicle is relatively small, thereby being beneficial to preventing the small collision force from affecting the normal operation of the battery pack.

[0043] During specific implementation, the gap 100 is between 3 mm and 10 mm. In this way, the buffer distance requirement of the side step mounting plate 2 during a small side impact can be met, and at the same time, it is also beneficial to the layout of the battery pack and the side step mounting plate 2 in the vehicle body. The gap 100 can be, for example, 3 mm, 3.2 mm, 3.5 mm, 4 mm, 6 mm, 8 mm, 9 mm, 9.5 mm, 9.8 mm or 10 mm. The value of the gap 100 can be adjusted according to requirements during specific setting.

[0044] The sill beam 1 in this embodiment includes a sill beam inner panel 102 and a sill beam outer panel 101 that are connected by internal and external snap-fitting. The cross-sections of the sill beam inner panel 102 and the sill beam outer panel 101 in the vehicle left-right direction are both in a "U" shape. Among them, the bottom part of the sill beam inner panel 102 extends in the vehicle left-right direction and is used to be connected to the side step mounting plate 2 and the side frame 3 respectively.

[0045] As a preferred embodiment, referring to Figure 4 As shown, the side step mounting plate 2 and the side frame 3 are connected to the connecting sleeves 4 located at the bottom of the sill beam 1 through connectors 5, and a plurality of connecting sleeves 4 are arranged at intervals in the vehicle front-rear direction. Here, the connecting sleeves 4 are provided at the bottom of the sill beam 1 to connect the side step mounting plate 2 and the side frame 3, which can facilitate the connection between the side step mounting plate 2 and the side frame 3 and the sill beam 1. The connectors 5 in this embodiment can be bolts and are screwed to the connecting sleeves 4, which is convenient for installation and disassembly and easy to operate.

[0046] In this embodiment, the connecting sleeves 4 are arranged in two columns at the bottom of the inner panel 102 of the sill beam at intervals in the left-right direction of the whole vehicle. One column of the connecting sleeves 4 is used to connect with the side step mounting plate 2, and the other column of the connecting sleeves 4 is used to connect with the side frame 3. Among them, multiple connecting sleeves 4 in the two columns are preferably arranged corresponding to each other in the left-right direction of the whole vehicle, which is beneficial to further improve the connection strength and stability between the side step mounting plate 2, the side frame 3 and the sill beam 1. Of course, the scheme of staggering the connecting sleeves 4 in the two columns in the front-rear direction of the whole vehicle can also meet the connection requirements.

[0047] It should be noted that the scheme in which only one of the side step mounting plate 2 and the side frame 3 is connected to the connecting sleeve 4 through the connecting piece 5 is also feasible. At this time, the other of the two can adopt other connection methods with the sill beam 1 as long as the connection requirements can be met.

[0048] To improve the side collision safety of the vehicle body structure, in this embodiment, the cross-sections of the side step mounting plate 2 and the side frame 3 in the left-right direction of the whole vehicle are both set as multi-cavity energy-absorbing structures. Such a setting can not only increase the structural strength of the side step mounting plate 2 and the side frame 3 by using the multi-cavity structure, but also increase the energy-absorbing capacity of the side step mounting plate 2 and the side frame 3 during a collision, which is beneficial to increasing the safety of the battery pack.

[0049] As a feasible implementation manner, the side step mounting plate 2 and the side frame 3 in this embodiment are both made of extruded profiles, and reinforcing ribs are provided in both the side step mounting plate 2 and the side frame 3. The cross-sections of the side step mounting plate 2 and the side frame 3 are separated by the corresponding reinforcing ribs to form a multi-cavity energy-absorbing structure. Among them, the side step mounting plate 2 and the side frame 3 are both made of extruded profiles, which is beneficial to the preparation of the two and can also ensure the structural reliability. The setting of multiple reinforcing ribs is beneficial to forming a multi-cavity energy-absorbing structure. During specific implementation, the side step mounting plate 2 and the side frame 3 can generally be made of aluminum alloy extruded profiles, and the aluminum alloy extruded profiles have the advantages of high strength, light weight, strong corrosion resistance, easy processing and low mold investment.

[0050] As a preferred implementation manner, as Figure 5 shown, the side step mounting plate 2 includes a connecting portion 201 connected to the sill beam 1 and an extension portion 202 connected to the connecting portion 201. The reinforcing ribs in the side step mounting plate 2 include a first reinforcing rib 2021 arranged in the up-down direction of the whole vehicle in the extension portion 202 and a second reinforcing rib 2011 arranged in the left-right direction of the whole vehicle in the connecting portion 201. Among them, multiple first cavities 2022 arranged in sequence in the left-right direction of the whole vehicle are separated by the first reinforcing rib 2021 in the extension portion 202, and multiple second cavities 2012 arranged in sequence in the up-down direction of the whole vehicle are separated by the second reinforcing rib 2011 in the connecting portion 201.

[0051] In this embodiment, the first reinforcing ribs 2021 in the extension part 202 are arranged along the up-and-down direction of the whole vehicle, and the first cavities 2022 are arranged in sequence along the left-and-right direction of the whole vehicle. This can make there be no transverse (i.e., the left-and-right direction of the whole vehicle) reinforcing ribs in the side step mounting plate 2, and at the same time, it is also a single-cavity structure in the Z direction (i.e., the up-and-down direction of the whole vehicle). This can make the side step mounting plate 2 become an energy absorption area during a side collision of the whole vehicle, and can gradually collapse from the outside to the inside during a side collision, realizing effective side collision energy absorption.

[0052] In the connecting part 201, the second reinforcing ribs 2011 are arranged along the left-and-right direction of the whole vehicle, and the second cavities 2012 are arranged in sequence along the up-and-down direction of the whole vehicle. This can make there be transverse reinforcing ribs in the connecting part 201, and at the same time, it is also a multi-cavity structure in the Z direction (i.e., the up-and-down direction of the whole vehicle), which can ensure the structural strength of the connecting part 201 and the reliability of the connection between the side step mounting plate 2 and the sill beam 1.

[0053] As a feasible implementation manner, as Figure 5 shown in, there are three first reinforcing ribs 2021 arranged at intervals along the left-and-right direction of the whole vehicle in the extension part 202, so as to form four first cavities 2022 stacked along the left-and-right direction of the whole vehicle in the extension part 202. The second reinforcing rib 2011 is one arranged in the connecting part 201, so that two second cavities 2012 stacked along the up-and-down direction of the whole vehicle are formed in the connecting part 201.

[0054] In addition, the multiple first cavities 2022 and second cavities 2012 also form a multi-cavity structure stacked in the left-and-right direction of the whole vehicle. The cooperation between the two is conducive to further improving the energy absorption capacity of the side step mounting plate 2 for the collision force, thereby protecting the battery pack. The above-mentioned connecting piece 5 is arranged through the two second cavities 2012 on the connecting part 201.

[0055] It can be understood that the numbers of the first reinforcing ribs 2021 and the second reinforcing ribs 2011 can both be adjusted according to the usage requirements. In addition, when implementing this embodiment, only the first reinforcing ribs 2021 can be provided, or only the second reinforcing ribs 2011 can be provided. At this time, a multi-cavity energy absorption structure can also be formed in the side step mounting plate 2.

[0056] In some implementation manners, as Figure 6 shown in, the top surface of the extension part 202 is in the same plane as the top surface of the connecting part 201. The bottom surface of the extension part 202 close to the outside of the vehicle is inclined upward along the direction from the inside of the vehicle to the outside of the vehicle. In this way, the distance between the top surface and the bottom surface on the outside of the extension part 202 is along the direction pointing to the connecting part 201 (i.e., Figure 5In this way, the overall rigidity of the extension part 202 can be gradually increased from the outside to the inside, so that when the vehicle is hit sideways, the outer side of the side step mounting plate 2 can be crushed and absorbed step by step, which helps to improve the side impact energy absorption effect. In specific implementation, the shape of the extension part 202 can be adaptively adjusted according to needs.

[0057] As a preferred embodiment, Figure 6 As shown in the figure, the side frame 3 includes a frame body 301, and a connecting plate 302 located on one side of the frame body 301, and the connecting plate 302 is connected to the door sill beam 1. The connecting plate 302 is located on the outside of the frame body 301 and is connected to the middle and lower part of the frame body 301. The reinforcing ribs in the side frame 3 include a third reinforcing rib 3021 located in the connecting plate 302 and arranged along the left and right direction of the whole vehicle, and a plurality of third cavities 3022 are separated by the third reinforcing rib 3021 in the connecting plate 302 and arranged in sequence along the up and down direction of the whole vehicle.

[0058] In this embodiment, the third reinforcing ribs 3021 in the connecting plate 302 are arranged along the left-right direction of the vehicle, and the third cavities 3022 are arranged in sequence along the up-down direction of the vehicle, so that the connecting plate 302 has transverse reinforcing ribs and is also a multi-cavity structure in the Z direction (i.e., the up-down direction of the vehicle), which can ensure the structural strength of the connecting plate 302 and help ensure the reliability of the connection between the battery pack and the door sill beam 1. In specific implementation, the number of the third reinforcing ribs 3021 can be Figure 5 As shown in FIG. 3 , two third cavities 3022 stacked up and down can be formed in the connecting plate 302. The connecting member 5 passes through the two third cavities 3022 on the connecting plate 302 and is connected to the connecting sleeve 4. Of course, in specific implementation, the number of the third reinforcing ribs 3021 can still be increased according to the use requirements.

[0059] As a preferred embodiment, the reinforcing ribs in the side frame 3 include a plurality of fourth reinforcing ribs 3011 located in the frame body 301 and arranged along the left-right direction of the vehicle. The frame body 301 is divided into a plurality of fourth cavities 3012 arranged sequentially along the up-down direction of the vehicle by the fourth reinforcing ribs 3011, and some of the fourth reinforcing ribs 3011 and the third reinforcing ribs 3021 are arranged correspondingly in the left-right direction of the vehicle.

[0060] Here, a fourth reinforcing rib 3011 is set in the frame body 301, and a plurality of fourth cavities 3012 are separated. At the same time, some of the fourth reinforcing ribs 3011 are arranged corresponding to the third reinforcing ribs 3021. This can also make the frame body 301 and the side frame 3 as a whole have better structural strength, increase the side stiffness of the battery pack, and provide better collision protection capability for the battery pack.

[0061] For detailed structure, refer to Figure 6As shown, there are three fourth reinforcing ribs 3011 arranged at intervals in the up-and-down direction of the whole vehicle. In this way, four fourth cavities 3012 can be formed in the border body 301 in a stacked manner up and down. Among them, the lowermost fourth reinforcing rib 3011 is at the same height as the third reinforcing rib 3021 and is correspondingly arranged in the left-right direction of the whole vehicle.

[0062] In the vehicle body structure of this embodiment, the side step mounting plate 2 and the side border 3 are arranged opposite to each other in the left-right direction of the whole vehicle, and multi-cavity energy-absorbing structures are respectively formed in the side step mounting plate 2 and the side border 3, so that the side step mounting plate 2 serves as an energy-absorbing area and the side border 3 serves as a rigid connection area. When a side collision occurs to the vehicle body structure, the multiple cavity energy-absorbing structures in the side step mounting plate 2 collapse step by step from the outside to the inside to achieve side collision energy absorption. The rigid connection area is the position of the connection point between the side border 3 and the sill beam 1, forming a rigid area, which is thus conducive to protecting the battery pack.

[0063] The vehicle body structure in this embodiment can also make the side border 3 serve as a collision force transmission path, so as to cooperate with the force transmission paths on the vehicle body structure to form a collision safety structure, which is conducive to guiding the collision force to be dispersed and transmitted in the left-right direction and up-and-down direction of the whole vehicle, thereby being conducive to improving the stability of the collision and preventing the situation of collision instability caused by the lack of force transmission at the bottom of the vehicle body structure during the deformation process of the side collision.

[0064] In addition, this embodiment also relates to a vehicle provided with the vehicle body structure as described above.

[0065] For the vehicle described in this embodiment, by setting the vehicle body structure as above, it is conducive to improving the side collision safety of the vehicle.

[0066] 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 principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle body structure, characterized in that: It includes a vehicle body frame, and a battery pack located at the bottom of the vehicle body frame; The side frame (3) of the battery pack is connected to the bottom of the door sill beam (1) in the vehicle body frame, and the bottom of the door sill beam (1) is provided with a side step mounting plate (2); The side step mounting plate (2) extends along the front-rear direction of the vehicle and is arranged opposite to the side frame (3) in the left-right direction of the vehicle. In addition, along the left-right direction of the vehicle, one side of the side step mounting plate (2) is connected to the bottom of the door sill beam (1), and the other side of the side step mounting plate (2) extends to the outside of the door sill beam (1).

2. The vehicle body structure according to claim 1, characterized in that: In the left-right direction of the vehicle, a gap (100) is left between the side step mounting plate (2) and the side frame (3).

3. The vehicle body structure according to claim 2, characterized in that: The gap (100) is between 3 mm and 10 mm.

4. The vehicle body structure according to claim 1, characterized in that: The side step mounting plate (2) and / or the side frame (3) are connected to a connecting sleeve (4) located at the bottom of the door sill beam (1) via a connecting piece (5), and the connecting sleeves (4) are multiple and arranged at intervals along the front-rear direction of the vehicle.

5. The vehicle body structure according to any one of claims 1 to 4, characterized in that: The cross-sections of the side step mounting plate (2) and the side frame (3) along the left-right direction of the whole vehicle are both configured as multi-cavity energy absorption structures.

6. The vehicle body structure according to claim 5, characterized in that: The side step mounting plate (2) and the side frame (3) are both made of extruded profiles, and reinforcing ribs are provided in the side step mounting plate (2) and the side frame (3); The cross sections of the side step mounting plate (2) and the side frame (3) are divided by the corresponding reinforcing ribs to form a multi-cavity energy absorption structure.

7. The vehicle body structure according to claim 6, characterized in that: The side step mounting plate (2) comprises a connecting portion (201) connected to the door sill beam (1), and an extension portion (202) connected to the connecting portion (201); The reinforcing ribs in the side step mounting plate (2) include first reinforcing ribs (2021) located in the extension portion (202) and arranged along the vertical direction of the vehicle, and / or second reinforcing ribs (2011) located in the connection portion (201) and arranged along the horizontal direction of the vehicle; The first reinforcing rib (2021) separates the extension part (202) into a plurality of first cavities (2022) arranged in sequence along the left-right direction of the vehicle, and the second reinforcing rib (2011) separates the connection part (201) into a plurality of second cavities (2012) arranged in sequence along the up-down direction of the vehicle.

8. The vehicle body structure according to claim 6, characterized in that: The side frame (3) comprises a frame body (301) and a connecting plate (302) located on one side of the frame body (301), wherein the connecting plate (302) is connected to the door sill beam (1); The reinforcing ribs in the side frame (3) include third reinforcing ribs (3021) located in the connecting plate (302) and arranged along the left-right direction of the entire vehicle, and the connecting plate (302) is divided by the third reinforcing ribs (3021) into a plurality of third cavities (3022) arranged in sequence along the up-down direction of the entire vehicle.

9. The vehicle body structure according to claim 8, characterized in that: The reinforcing ribs in the side frame (3) include a plurality of fourth reinforcing ribs (3011) located in the frame body (301) and arranged along the left-right direction of the vehicle; The frame body (301) is divided by the fourth reinforcing ribs (3011) into a plurality of fourth cavities (3012) arranged in sequence along the vertical direction of the vehicle, and part of the fourth reinforcing ribs (3011) and the third reinforcing ribs (3021) are arranged correspondingly in the horizontal direction of the vehicle.

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

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