A vehicle

Abstract

The embodiment of the application provides a vehicle, and belongs to the automobile field. The vehicle comprises a vehicle body main body, a rocker, a seat cross beam and a battery pack. The seat cross beam is between the two rockers. Two first reinforcing beams are oppositely arranged along the width direction of the vehicle body main body. The first reinforcing beam comprises a first support plate, a second support plate and a third support plate which are sequentially connected. The second support plate is connected between the first support plate and the third support plate along the width direction of the vehicle body. The first support plate is provided with the second support plate and the third support plate on opposite sides thereof along the up-down direction. The two second support plates are located between the two third support plates along the up-down direction. The second support plate and the third support plate are located between the two first support plates along the width direction of the vehicle body main body. Along the width direction of the vehicle body main body, the projection area of the seat cross beam and the projection area of the first support plate at least partially overlap. The battery pack is located below the seat cross beam. The vehicle of the embodiment of the application can improve the side crash performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a vehicle. BACKGROUND

[0002] The power of a new energy electric vehicle mainly comes from a battery pack on a vehicle body, and the battery pack installed on the vehicle body needs a certain safe environment. In the related art, the side crash performance of the vehicle needs to be further improved. SUMMARY

[0003] Therefore, embodiments of the present application aim to provide a vehicle to improve the side crash performance of the vehicle.

[0004] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application provides a vehicle, comprising:

[0005] a vehicle body;

[0006] a rocker beam, the vehicle body is provided with the rocker beam on opposite sides of the vehicle body in a width direction of the vehicle body, the rocker beam is arranged to extend along a length direction of the vehicle body, the rocker beam comprises a box beam and a first reinforcing beam, the box beam is connected with the vehicle body, the box beam has an accommodation cavity therein, the first reinforcing beam is located in the accommodation cavity, the number of the first reinforcing beam in each side of the accommodation cavity is two, the two first reinforcing beams are oppositely arranged along the width direction of the vehicle body, the first reinforcing beam comprises a first support plate, a second support plate and a third support plate connected in sequence, the second support plate is connected between the first support plate and the third support plate in the width direction of the vehicle body, the first support plate is provided with the second support plate and the third support plate on opposite sides in an up-down direction, the second support plates on both sides are located between the third support plates on both sides in the up-down direction, and the second support plate and the third support plate are located between the two first support plates in the width direction of the vehicle body;

[0007] a seat cross beam extending along the width direction of the vehicle body, the seat cross beam is connected with the corresponding box beam at both ends in the width direction of the vehicle body, and the projection area of the seat cross beam and the projection area of the first support plate at least partially overlap in the width direction of the vehicle body;

[0008] a battery pack located between the rocker beams on both sides, and the battery pack is located below the seat cross beam.

[0009] In an embodiment, the wall of the accommodating cavity comprises a guide surface, the guide surface is located on a side of the accommodating cavity facing the battery pack, the first support plate of the battery pack is located above the guide surface, and an inner end of the guide surface is inclined upward, and the first reinforcing beam of the battery pack can abut against the guide surface during a collision.

[0010] In an embodiment, the rocker beam further comprises a mounting plate connected with the box girder, the mounting plate is located at least partially in the accommodating cavity, the two first reinforcing beams are connected with the mounting plate, the mounting plate is located between the two first reinforcing beams, and the first reinforcing beams and the box girder are arranged in a spaced manner.

[0011] In an embodiment, the box girder on each side comprises two main beams arranged in a spaced manner along the width direction of the vehicle body, the two main beams arranged in a spaced manner enclose the accommodating cavity, the main beams are connected with the vehicle body, the seat cross beam is mounted on the main beam close to the battery pack, the main beam close to the battery pack has a plate-shaped connecting portion, the battery pack comprises a frame, battery monomers and mounting beams, the battery monomers are mounted on the inner side of the frame, the frame is provided with the mounting beams on opposite sides along the width direction of the vehicle body, each mounting beam is connected to a side of the frame away from the battery monomers along the width direction of the vehicle body, the mounting beam comprises an upper beam plate, a lower beam plate and a transition plate connecting the upper beam plate and the lower beam plate, the frame comprises an outer frame body and a reinforcing rib arranged in the outer frame body, the outer frame body and the reinforcing rib enclose an avoidance area, the upper beam plate is aligned with the reinforcing rib, the lower beam plate is aligned with the avoidance area, the connecting portion is mounted above the upper beam plate, the upper beam plate and the lower beam plate are connected to the outer side of the outer frame body, and the battery monomers are located on the inner side of the outer frame body.

[0012] In an embodiment, the battery pack further comprises a second reinforcing beam connected above the mounting beam, the second reinforcing beam is located between the main beam and the frame, the outer end surface of the seat cross beam is aligned with the outer end surface of the second reinforcing beam in the up-down direction, and the second reinforcing beam is arranged in a spaced manner with the main beam along the width direction of the vehicle body.

[0013] In an embodiment, the second reinforcing beam comprises a first beam plate and a second beam plate, the first beam plate is arranged in a spaced manner with the upper beam plate, the second beam plate is connected with the upper beam plate and the first beam plate respectively, the first beam plate is aligned with the reinforcing rib, and the outer end surface of the seat cross beam is aligned with the outer end surface of the second beam plate in the up-down direction.

[0014] In an embodiment, the reinforcing bars aligned with the first beam plate are first reinforcing bars, the reinforcing bars aligned with the upper beam plate are second reinforcing bars, and the battery pack further comprises a support assembly located inside the frame, the support assembly is connected with the frame at both ends along the width direction of the vehicle body, the support assembly is arranged to extend along the width direction of the vehicle body, the support assembly has a first support part and a second support part in a plate shape, the first support part is aligned with the first reinforcing bar, and the second support part is aligned with the second reinforcing bar.

[0015] In an embodiment, the support assembly comprises:

[0016] a protective sleeve connected to the inside of the frame;

[0017] a support beam arranged to extend along the width direction of the vehicle body, the support beam is provided with the protective sleeve at both ends, the protective sleeve at each end is in abutment with the corresponding end of the support beam along the extension direction of the support beam, and the first support part and the second support part are formed on the support beam, the first support part is arranged across the protective sleeves at both ends, and the second support part is arranged across the protective sleeves at both ends.

[0018] In an embodiment, the protective sleeve comprises:

[0019] a protective plate mounted on the inside of the frame, the corresponding end of the support beam is in abutment with the inside of the protective plate;

[0020] a boss connected to the inside of the protective plate, the boss is located between the first support part and the second support part;

[0021] a partition plate located on the inside of the protective plate, the partition plate is arranged to be spaced apart from the protective plate, and the partition plate is sleeved on the support beam;

[0022] a rib plate connected between the protective plate and the partition plate.

[0023] In an embodiment, the support assembly further comprises a pressing beam connected with the protective sleeve, the pressing beam is located above the support beam, the pressing beam is arranged to be spaced apart from the support beam, and the pressing beam is arranged across the protective sleeves at both ends.

[0024] In one embodiment, the main beam includes a fourth support plate, a fifth support plate, and a sixth support plate connected in sequence. The fifth support plate is connected between the fourth support plate and the sixth support plate along the width direction of the vehicle body. The fourth support plate has the fifth support plate and the sixth support plate on opposite sides along the vertical direction. The fifth support plates on both sides are located between the sixth support plates on both sides. The fifth support plate and the sixth support plate are located between the two fourth support plates along the width direction of the vehicle body. Among the fifth support plates located below the fourth support plate, the fifth support plate closer to the battery pack is the target support plate, and the connecting portion is formed on the target support plate.

[0025] In the vehicle of this embodiment, along the width direction of the vehicle body, since the projection area of ​​the seat crossbeam and the projection area of ​​the first support plate at least partially overlap, the first reinforcing beam can effectively compress and collapse under the action of external collision force and the reaction force of the seat crossbeam. The first support plate of the first reinforcing beam and the second and third support plates on both sides are arranged in a roughly "U" shape, so that the two oppositely arranged first reinforcing beams in the accommodating cavity have a large collapse space in the width direction of the vehicle body. Through the two oppositely arranged "U"-shaped first reinforcing beams, energy is fully absorbed during the side collision of the vehicle, mitigating the impact of the side collision on the battery pack and seat crossbeam, thereby improving the side collision performance of the vehicle. Attached Figure Description

[0026] Figure 1 This is an assembly drawing of the vehicle body, sill beam, and seat crossbeam according to an embodiment of this application;

[0027] Figure 2 This is an assembly drawing of the vehicle body, sill beam, seat crossbeam and battery pack according to an embodiment of this application;

[0028] Figure 3 This is an assembly drawing of the sill beam, seat crossbeam, and battery pack according to an embodiment of this application;

[0029] Figure 4 This is an assembly drawing of the sill beam and seat crossbeam according to an embodiment of this application;

[0030] Figure 5 This is an assembly diagram of the frame, mounting beam, and support assembly according to an embodiment of this application, showing the entire frame;

[0031] Figure 6 This is an assembly diagram of a frame and support assembly according to an embodiment of the present application. The diagram shows a partial structure of one end of the support assembly, and the pressure beam shown in the diagram is welded to the base installed on the protective sleeve.

[0032] Figure 7Figure 6 is an assembly view of the frame and support assembly of one embodiment of the present application, showing a partial structure of one end of the support assembly, showing the cross-sectional structure of the base, support beam, frame, and mounting beam;

[0033] Figure 8 Figure 6 is an assembly view of the frame and support assembly of one embodiment of the present application, showing a partial structure of one end of the support assembly, showing the cross-sectional structure of the base, support beam, frame, and mounting beam;

[0034] Figure 9 Figure 6 is an assembly view of the frame and support assembly of one embodiment of the present application, showing a partial structure of one end of the support assembly, showing the cross-sectional structure of the base, support beam, frame, and mounting beam;

[0035] Figure 10 Figure 7 is a structural schematic view of the protective sleeve of one embodiment of the present application;

[0036] Figure 11 Figure 8 is a structural schematic view of the seat beam of one embodiment of the present application.

[0037] BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Vehicle body main body 1; rocker beam 2; box beam 21; accommodating cavity 211; guide surface 2111; main beam 212; fourth support plate 2121; fifth support plate 2122; sixth support plate 2123; connecting portion 2124; first reinforcing beam 22; first support plate 221; second support plate 222; third support plate 223; mounting plate 23; seat beam 3; cavity 31; battery pack 4; frame 41; outer frame body 411; reinforcing rib 412; avoidance area 413; battery monomer 42; mounting beam 43; upper beam plate 431; lower beam plate 432; transition plate 433; second reinforcing beam 44; first beam plate 441; second beam plate 442; support assembly 45; first support portion 451; second support portion 452; protective sleeve 453; shield 4531; boss 4532; partition plate 4533; rib plate 4534; support beam 454; pressing beam 455; base 5. DETAILED DESCRIPTION

[0039] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation and description of the purpose of the present application, and should not be regarded as an improper limitation of the present application.

[0040] In the description of the present application, the "top", "bottom", "upper", "lower" orientation or positional relationship is based on the attached drawings, and the "left" and "right" orientation or positional relationship is based on the orientation of the figures. Figure 1The positional relationship or orientation shown needs to be understood that these positional terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In the embodiments of the present application, please refer to Figure 1 The up-down direction is the direction shown by the arrow R1 in the figure.

[0042] In the related art, when the vehicle is subjected to a collision impact in the width direction of the vehicle body main body, for example, a side column impact test is performed on the vehicle, the vehicle side collides with the impact column, and the rocker beam of the vehicle is difficult to fully collapse and absorb energy, so that most of the energy of the vehicle side impact is conducted to the battery pack, the seat cross beam and the vehicle body main body through the rocker beam, which may cause damage to the battery pack, the seat cross beam and the vehicle body main body.

[0043] Exemplarily, in order to further improve the integration of the battery pack and the platform expandability, a longitudinal large module technical solution is adopted, and due to the limitation of the arrangement structure, the ability to resist lateral impact is relatively weak. It is necessary to improve the side impact performance of the vehicle to better protect the battery, and prevent the battery pack from being subjected to a large lateral impact.

[0044] In view of this, the embodiments of the present application provide a vehicle, please refer to Figures 1-4 The vehicle includes a vehicle body main body 1, a rocker beam 2, a seat cross beam 3 and a battery pack 4. The vehicle body main body 1 is provided with the rocker beam 2 on the opposite sides of the vehicle body main body 1 in the width direction of the vehicle body main body 1, and the rocker beam 2 is arranged to extend in the length direction of the vehicle body main body 1. The seat cross beam 3 extends in the width direction of the vehicle body main body 1, and the two ends of the seat cross beam 3 in the width direction of the vehicle body main body 1 are connected with the corresponding rocker beam 2 respectively. The battery pack 4 is located between the two rocker beams 2, and the battery pack 4 is located below the seat cross beam 3. In this way, the rocker beams 2 are on both sides of the vehicle body main body 1, and the rocker beams 2 can be stepped on by personnel entering and exiting the vehicle body main body 1. The seat cross beam 3 is used for mounting the seat in the vehicle body main body 1, and the seat cross beam 3 for mounting the seat has a certain supporting strength. The seat cross beam 3 extending in the width direction of the vehicle body main body 1 can resist the extrusion of the rocker beam 2 to a certain extent during the side impact, so as to prevent the battery pack 4 below the seat cross beam 3 from being damaged by the rocker beam 2.

[0045] In an embodiment, please refer to Figures 1-4, the sill beam 2 includes a box girder 21 and a first reinforcing beam 22. The box girder 21 is connected to the vehicle body 1. The box girder 21 has a receiving cavity 211. The first reinforcing beam 22 is located in the receiving cavity 211. The number of the first reinforcing beams 22 in each receiving cavity 211 is two. The two first reinforcing beams 22 are arranged oppositely along the width direction of the vehicle body 1. The first reinforcing beam 22 includes a first support plate 221, a second support plate 222 and a third support plate 223 which are connected in sequence. The second support plate 222 is connected between the first support plate 221 and the third support plate 223 along the width direction of the vehicle body. Second support plates 222 are arranged on both opposite sides of the first support plate 221 along the up-and-down direction, and the two second support plates 222 on both sides are located between the two third support plates 223 along the up-and-down direction. The second support plate 222 and the third support plate 223 are both located between the two first support plates 221 along the width direction of the vehicle body 1. Along the width direction of the vehicle body 1, at least part of the projection area of the seat cross beam 3 and the projection area of the first support plate 221 overlap. In such a structural form, along the width direction of the vehicle body 1, due to at least partial overlap of the projection area of the seat cross beam 3 and the projection area of the first support plate 221, the first reinforcing beam 22 can be better extruded and crushed under the action of an external collision force and the reaction force of the seat cross beam 3. The first support plate 221 of the first reinforcing beam 22 and the second support plates 222 and the third support plates 223 on both sides are generally arranged in a "U" shape, so that the two oppositely arranged first reinforcing beams 22 in the receiving cavity 211 have a large crushing space in the width direction of the vehicle body 1. The two oppositely arranged first reinforcing beams 22 in a "U" shape fully collapse and absorb energy during a side collision of the vehicle, alleviating the impact of the external side collision of the vehicle on the battery pack 4 and the seat cross beam 3, thereby improving the side collision performance of the vehicle.

[0046] In one embodiment, please refer to Figure 3 and Figure 4The wall surface of the accommodating cavity 211 comprises a guide surface 2111 located on the side of the accommodating cavity 211 facing the battery pack 4, the first support plate 221 of the battery pack 4 is located above the guide surface 2111, and the inner end of the guide surface 2111 is upwardly inclined, and the first reinforcing beam 22 of the battery pack 4 can abut against the guide surface 2111 during the collision. With this structure, in the width direction of the vehicle body main body 1, due to the at least partial overlap of the projection area of the seat cross beam 3 and the projection area of the first support plate 221, the first reinforcing beam 22 is extruded and collapsed by the reaction force of the seat cross beam 3, and in the collapsing process of the first reinforcing beam 22, the upward inclination of the inner end of the guide surface 2111 below the first support plate 221 can guide the first support plate 221 and the second support plate 222 to deform upward as much as possible, and the collision extrusion force is guided to the seat cross beam 3 above as much as possible, and the seat cross beam 3 is fully collapsed and energy-absorbed by the reaction force, thereby reducing the risk of the first support plate 221 and the second support plate 222 deforming downward and damaging the battery pack 4 during the collapsing process.

[0047] It can be understood that the guide surface 2111 can not be provided on the wall surface of the accommodating cavity 211. Alternatively, the guide direction of the guide surface 2111 can be set to other directions. As long as the energy can be fully absorbed, it is acceptable.

[0048] In an embodiment, please refer to Figure 3 and Figure 4 The rocker beam 2 further comprises a mounting plate 23 connected with the box beam 21, the mounting plate 23 is at least partially located in the accommodating cavity 211, the two first reinforcing beams 22 are connected with the mounting plate 23, the mounting plate 23 is located between the two first reinforcing beams 22, and the first reinforcing beam 22 and the box beam 21 are arranged in a spaced manner. With this structure, the first reinforcing beam 22 is mounted through the mounting plate 23 between the two first reinforcing beams 22, the first reinforcing beam 22 and the box beam 21 are arranged in a spaced manner, and there is no connecting constraint such as fastener or welding between the first reinforcing beam 22 and the box beam 21, which is conducive to the full collapse and deformation of the box beam 21 and the first reinforcing beam 22 during the collision, thereby fully absorbing the energy of the collision as much as possible.

[0049] In an embodiment, the mounting plate 23 can not be provided, and the first reinforcing beam 22 is connected with the box beam 21.

[0050] In an embodiment, please refer to Figure 3 , Figure 4 , Figure 7 and Figure 9Each side box beam 21 comprises two main beams 212 arranged oppositely along the width direction of the vehicle body 1, the oppositely arranged two main beams 212 surround to form the accommodating cavity 211, the main beams 212 are connected with the vehicle body 1, the seat cross beam 3 is installed on the main beam 212 close to the battery pack 4, the main beam 212 close to the battery pack 4 has a connecting part 2124 in a plate shape; the battery pack 4 comprises a frame 41, battery monomers 42 and mounting beams 43, the battery monomers 42 are installed on the inner side of the frame 41, the frame 41 is provided with the mounting beam 43 on the opposite sides along the width direction of the vehicle body 1, each side mounting beam 43 is connected on the side of the frame 41 away from the battery monomers 42 along the width direction of the vehicle body 1, the mounting beam 43 comprises an upper beam plate 431, a lower beam plate 432 and a transition plate 433 connecting the upper beam plate 431 and the lower beam plate 432, the frame 41 comprises an outer frame body 411 and a reinforcing rib 412 arranged in the outer frame body 411, the outer frame body 411 and the reinforcing rib 412 surround to form an avoiding area 413, the upper beam plate 431 is aligned with the corresponding reinforcing rib 412, the lower beam plate 432 is aligned with the avoiding area 413, the connecting part 2124 is installed above the upper beam plate 431, the upper beam plate 431 and the lower beam plate 432 are both connected on the outer side of the outer frame body 411, and the battery monomers 42 are located on the inner side of the outer frame body 411. With the above structure, since the upper beam plate 431 is aligned with the corresponding reinforcing rib 412, the upper beam plate 431 can be supported by the reverse support force of the reinforcing rib 412 during the collision, since the lower beam plate 432 is aligned with the avoiding area 413, the avoiding area 413 is weak in strength because no reinforcing rib 412 is arranged in the avoiding area 413, and the collision impact force of the lower beam plate 432 presses the avoiding area 413 during the collision, so that the lower beam plate 432 drives the transition plate 433 and the upper beam plate 431 to bend and deform downward together, and thus the whole mounting beam 43 bends and deforms downward, and the downward bending and deforming mounting beam 43 and the upward bending plate-shaped connecting part 2124 on the corresponding main beam 212 can be separated in the up-down direction. The connecting part 2124 on the corresponding main beam 212 bends and deforms upward to collapse, the mounting beam 43 bends and deforms downward to collapse, and the connecting part 2124 and the mounting beam 43 can bend and collapse from different directions respectively, which is beneficial to the full collapse and energy absorption of the connecting part 2124 and the mounting beam 43, and improves the side crash performance of the vehicle.

[0051] It can be understood that the embodiments of the present application are not limited to the alignment of the upper beam plate 431 with the reinforcing rib 412 and the alignment of the lower beam plate 432 with the avoiding area 413. In an embodiment, the upper beam plate 431 and the lower beam plate 432 can both be aligned with the avoiding area 413; or the upper beam plate 431 is aligned with the avoiding area 413, and the lower beam plate 432 is aligned with the reinforcing rib 412.

[0052] In an embodiment, please refer to Figure 3The battery pack 4 further comprises a second reinforcing beam 44 connected above the mounting beam 43, the second reinforcing beam 44 is located between the main beam 212 and the frame 41, the outer end surface of the seat cross beam 3 and the outer end surface of the second reinforcing beam 44 are aligned in the up-down direction, and the second reinforcing beam 44 is arranged apart from the main beam 212 in the width direction of the vehicle body 1. With this structure, since the seat cross beam 3 is mounted on the main beam 212 and the second reinforcing beam 44 is arranged apart from the main beam 212, when the vehicle is subjected to a side collision, the main beam 212 and the first reinforcing beam 22 collapse under the external impact force and the extrusion force of the seat cross beam 3, and after the main beam 212 and the first reinforcing beam 22 collapse to a certain extent, the main beam 212 near the battery pack 4 abuts against the second reinforcing beam 44, the battery pack 4 appropriately bears the impact force of the side collision and provides a collision reaction force to the main beam 212, and the lower part of the main beam 212 further collapses to absorb energy under the impact force of the external side collision and the collision reaction force of the second reinforcing beam 44. Since the outer end surface of the seat cross beam 3 and the outer end surface of the second reinforcing beam 44 are aligned in the up-down direction, the second reinforcing beam 44 can provide a large enough collision reaction force to the main beam 212, so that the lower part of the main beam 212 can fully collapse to absorb energy under the collision reaction force of the second reinforcing beam 44, and the collision impact force borne by the second reinforcing beam 44 is appropriate, reducing the possibility of damage to the battery pack 4 caused by the collision impact. The outer end surface of the seat cross beam 3 and the outer end surface of the second reinforcing beam 44 are aligned in the up-down direction, the upper part of the main beam 212 collapses to absorb energy under the reaction force of the seat cross beam 3, and the lower part of the main beam 212 collapses to absorb energy under the reaction force of the second reinforcing beam 44, so that the upper part and the lower part of the main beam 212 can fully collapse to absorb collision energy, improving the side crash performance of the vehicle.

[0053] It can be understood that the battery pack 4 can not be provided with the second reinforcing beam 44.

[0054] In an embodiment, referring to Figure 3 , Figure 7 and Figure 9 , the second reinforcing beam 44 comprises a first beam plate 441 and a second beam plate 442, the first beam plate 441 is arranged apart from the upper beam plate 431, and the second beam plate 442 is connected with the upper beam plate 431 and the first beam plate 441 respectively, the first beam plate 441 is aligned with the corresponding reinforcing rib 412, and the outer end surface of the seat cross beam 3 and the outer end surface of the second beam plate 442 are aligned in the up-down direction. With this structure, the first beam plate 441 is aligned with the corresponding reinforcing rib 412, the upper beam plate 431 of the mounting beam 43 is aligned with the corresponding reinforcing rib 412, and the corresponding reinforcing rib 412 in the frame 41 can provide better support to the first beam plate 441 and the upper beam plate 431 respectively, so that the transition beam plate connecting the upper beam plate 431 and the first beam plate 441 can provide a larger support reaction force to the main beam 212, which is conducive to the full collapse of the lower part of the main beam 212 to absorb energy.

[0055] It can be understood that the second reinforcing beam 44 is not limited to the form of a hollow structure composed of the first beam plate 441 and the second beam plate 442 connecting the first beam plate 441 and the upper beam plate 431. The second reinforcing beam 44 can be a solid beam, or the second reinforcing beam 44 can be provided with the first beam plate 441 but not the second beam plate 442.

[0056] In an embodiment, referring to Figures 5-9 The reinforcing rib 412 aligned with the first beam plate 441 is a first reinforcing rib, and the reinforcing rib 412 aligned with the upper beam plate 431 is a second reinforcing rib. The battery pack 4 further includes a support assembly 45 located inside the frame 41, and the support assembly 45 is connected to the frame 41 at both ends along the width direction of the vehicle body main body 1. The support assembly 45 extends along the width direction of the vehicle body main body 1 and has a first support portion 451 and a second support portion 452 in the form of a plate. The first support portion 451 is aligned with the first reinforcing rib, and the second support portion 452 is aligned with the second reinforcing rib. In this structure, since the support assembly 45 extends along the width direction of the vehicle body main body 1, the frame 41 is supported by the support assembly 45 inside the frame 41. When the vehicle is subjected to an external side impact force, the support assembly 45 inside the frame 41 can better support the frame 41, thereby relieving the extrusion of the battery monomer 42 inside the frame 41 under the action of the external impact force. Since the first support portion 451 is aligned with the first reinforcing rib, and the second support portion 452 is aligned with the second reinforcing rib, when the vehicle is subjected to an external side impact force, the first support portion 451 and the second support portion 452 can both provide a larger reaction force. The larger reaction force of the first support portion 451 is transmitted to the first beam plate 441 through the first reinforcing rib, so that the first beam plate 441 can apply a larger reaction force to the main beam 212 through the second beam plate 442 to fully extrude and collapse the main beam 212 to absorb energy. The larger reaction force of the second support portion 452 is transmitted to the upper beam plate 431 through the second reinforcing rib, and the second beam plate 442 connected to the upper beam plate 431 applies a larger reaction force to the main beam 212 to fully extrude and collapse the main beam 212 to absorb energy.

[0057] It can be understood that the battery pack 4 can also be provided with the support assembly 45 as needed.

[0058] In an embodiment, referring to Figures 5-10The support assembly 45 comprises a protective sleeve 453 and a support beam 454. The protective sleeve 453 is connected to the inner side of the frame 41. The support beam 454 extends along the width direction of the vehicle body. The support beam 454 is provided with the protective sleeve 453 at both ends. Each end protective sleeve 453 abuts against the corresponding end of the support beam 454 along the extension direction of the support beam 454. The first support part 451 and the second support part 452 are formed on the support beam 454. The first support part 451 is arranged across the two end protective sleeves 453. The second support part 452 is arranged across the two end protective sleeves 453. In this structure, the support beam 454 extends along the width direction of the vehicle body. The first support part 451 and the second support part 452 are formed on the support beam 454. The first support part 451 and the second support part 452 are arranged across the two end protective sleeves 453. During the side collision of the vehicle, the reaction force is provided by the support beam 454. The reaction force of the support beam 454 is transmitted to the reinforcing rib 412 in the frame 41 through the protective sleeve 453. Then, the reaction force is applied to the main beam 212 through the reinforcing rib 412 in the frame 41 to make the main beam 212 collapse. The end of the support beam 454 is relatively sharp. During the side collision of the vehicle, the support beam 454 abuts against the protective sleeve 453. The relatively sharp end of the support beam 454 does not contact the frame 41, thereby reducing the risk of the support beam 454 piercing the frame 41.

[0059] In an embodiment, referring to Figure 7 , Figure 9 and Figure 10 The protective sleeve 453 comprises a protective plate 4531, a boss 4532, a partition plate 4533 and a rib plate 4534. The protective plate 4531 is installed on the inner side of the frame 41. The corresponding end of the support beam 454 abuts against the inner side of the protective plate 4531. The boss 4532 is connected to the inner side of the protective plate 4531. The boss 4532 is located between the first support part 451 and the second support part 452. The partition plate 4533 is located on the inner side of the protective plate 4531. The partition plate 4533 is arranged in a spaced manner with the protective plate 4531. The support beam 454 penetrates the partition plate 4533. The rib plate 4534 is connected between the protective plate 4531 and the partition plate 4533. In this structure, the boss 4532 is inserted between the first support part 451 and the second support part 452. The boss 4532 can better support the support beam 454 in the up-down direction. The abutment of the support beam 454 against the protective plate 4531 can reduce the risk of the end of the support beam 454 piercing the frame 41. The partition plate 4533 sleeved on the support beam 454 isolates the sharp end of the support beam 454 in the space between the protective plate 4531 and the partition plate 4533, thereby reducing the risk of other structures being pierced and damaged by the sharp end of the support beam 454. The partition plate 4533 and the protective plate 4531 are connected into a whole by the rib plate 4534.

[0060] In an embodiment, the guard plate 4531, the partition plate 4533 and the rib plate 4534 are integrally formed.

[0061] In an embodiment, the guard plate 4531, the partition plate 4533 and the rib plate 4534 can be made of rubber.

[0062] It can be understood that the protective sleeve 453 is not limited to the above structure. The structure of the protective sleeve 453 can only reduce the risk of the support cross beam 454 piercing the frame 41.

[0063] In an embodiment, referring to Figures 5-9 , the support assembly 45 further comprises a pressing beam 455 connected with the protective sleeve 453, the pressing beam 455 is located above the support cross beam 454, the pressing beam 455 is arranged in a spaced manner with the support cross beam 454, and the pressing beam 455 is arranged across the two end protective sleeves 453. With such a structure, the support strength of the support assembly 45 along the width direction of the vehicle body main body 1 is improved by the pressing beam 455, which is beneficial to reduce the risk of the frame 41 extruding the battery monomer 42 inward. The battery monomer 42 is clamped between the pressing beam 455 and the support cross beam 454, which is beneficial to reduce the shaking of the battery monomer 42.

[0064] In an embodiment, the pressing beam 455 is bolted with the protective sleeve 453. The pressing beam 455 can be made of 7-series aluminum or high-strength steel without welding.

[0065] In an embodiment, the upper portion of the protective sleeve 453 is provided with a base 5, and the base 5 is welded with the pressing beam 455.

[0066] In an embodiment, referring to Figure 4, the main beam 212 includes a fourth support plate 2121, a fifth support plate 2122, and a sixth support plate 2123 that are connected in sequence. The fifth support plate 2122 is connected between the fourth support plate 2121 and the sixth support plate 2123 in the width direction of the vehicle body 1. The fifth support plate 2122 and the sixth support plate 2123 are provided on both opposite sides of the fourth support plate 2121 in the up-down direction, and the two fifth support plates 2122 on both sides are located between the two sixth support plates 2123. The fifth support plate 2122 and the sixth support plate 2123 are located between two fourth support plates 2121 in the width direction of the vehicle body 1. Among the fifth support plates 2122 located below the fourth support plate 2121, the fifth support plate 2122 close to the battery pack 4 is the target support plate, and the connecting portion 2124 is formed on the target support plate. In such a structural form, the main beam 212 is generally configured in a "ji" - shaped structure by the fourth support plate 2121, the fifth support plate 2122, and the sixth support plate 2123 connected in sequence. The two relatively arranged "ji" - shaped main beams 212 have a large collapse space in the width direction of the vehicle body 1, which is beneficial to the main beam 212 fully collapsing and absorbing energy. The two main beams 212 and the two first reinforcing beams 22 constitute four "ji" - shaped collapse - energy - absorbing structures, enabling the sill beam 2 to fully collapse and absorb energy during a side collision of the vehicle, which is beneficial to improving the side - collision performance of the vehicle.

[0067] In one embodiment, please refer to Figure 4 , a guiding surface 2111 is formed on the fourth support plate 2121 of the main beam 212 close to the battery pack 4.

[0068] In one embodiment, the material of the seat cross - beam 3 is a high - strength material with a strength reaching 1.7 Gpa.

[0069] In one embodiment, please refer to Figure 11 , the seat cross - beam 3 is formed by bending a plate. There are two closed cavities 31 arranged side by side in the length direction of the vehicle body 1 inside the seat cross - beam 3, and each cavity 31 extends in the width direction of the vehicle body 1.

[0070] In one embodiment, please refer to Figure 3 , other arrows in the figure except the arrow R1 indicating the direction show the force - transmission paths during the collision process. A part of the lateral collision impact force received by the sill beam 2 is transmitted to the mounting beam 43 through the box beam 21. A part of the force received by the mounting beam 43 is transmitted to the bottom wall of the lowermost part of the support cross - beam 454 through the lower plate 432 and the frame 41, as shown by the force - transmission path indicated by the lowermost arrow Figure 3 . A part of the force received by the mounting beam 43 is transmitted to the second support portion 452 of the support cross - beam 454 through the upper plate 431 and the corresponding reinforcing ribs 412 inside the frame 41, as shown by Figure 3The second force transmission path is shown from bottom to top. The lateral impact force on the rocker beam 2 is partially transmitted to the second reinforcing beam 44 through the box beam 21. The force on the second reinforcing beam 44 is partially transmitted to the first support part 451 of the support cross beam 454 through the first beam plate 441 and the corresponding reinforcing rib 412 in the frame 41, as shown by the arrow in the figure. Figure 3 The third force transmission path is shown from bottom to top. The force on the second reinforcing beam 44 is partially transmitted to the pressing beam 455 through the first beam plate 441 and the frame 41, as shown by the arrow in the figure. Figure 3 The fourth force transmission path is shown from bottom to top. The lateral impact force on the rocker beam 2 is partially transmitted to the inner main beam 212 through the outer main beam 212 and the second support plate 222 below the two first reinforcing beams 22, the lateral impact force on the rocker beam 2 is partially transmitted to the inner main beam 212 through the outer main beam 212 and the second support plate 222 above the two first reinforcing beams 22, the lateral impact force on the rocker beam 2 is partially transmitted to the fifth support plate 2122 of the inner main beam 212 through the fifth support plate 2122 of the outer main beam 212, the inner main beam 212 is connected with the seat cross beam 3, and the three forces transmitted to the inner main beam 212 are partially transmitted to the bottom wall of the seat cross beam 3 through the inner main beam 212, and the three forces transmitted to the inner main beam 212 are partially transmitted to the top wall of the seat cross beam 3 through the inner main beam 212.

[0071] In an embodiment, the collapse process of the vehicle during the side impact process is as follows: the outer main beam 212 in the shape of a few characters collapses first to absorb energy, the collapsed outer main beam 212 extrudes the outer first reinforcing beam 22 in the shape of a few characters to make the outer first reinforcing beam 22 collapse, and in this process, the inner first reinforcing beam 22 is extruded in the direction of the seat cross beam 3 under the guidance of the guide surface 2111. After the main beam 212 and the first reinforcing beam 22 collapse to a certain extent, the inner first reinforcing beam 22 and the inner main beam 212 collapse, and in this collapse process, the mounting beam 43 deforms downward, and the lower part of the inner main beam 212 deforms upward. The inner main beam 212 further collapses and deforms to abut against the second reinforcing beam 44. Through the above collapse process, the rocker beam 2 can be fully extruded and collapsed to absorb the energy of the impact, thereby better protecting the battery pack.

[0072] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle, characterized in that, include: Vehicle body; A sill beam is provided on each of the opposite sides of the vehicle body along the width direction. The sill beam extends along the length direction of the vehicle body. The sill beam includes a box beam and a first reinforcing beam. The box beam is connected to the vehicle body and has a receiving cavity. The first reinforcing beam is located in the receiving cavity. There are two first reinforcing beams in each receiving cavity. The two first reinforcing beams are arranged opposite each other along the width direction of the vehicle body. The first reinforcing beam includes a first support plate, a second support plate, and a third support plate connected in sequence. The second support plate is connected between the first support plate and the third support plate along the width direction of the vehicle body. The second support plate and the third support plate are provided on each of the opposite sides of the first support plate along the vertical direction. The two second support plates are located between the two third support plates along the vertical direction. The second support plate and the third support plate are both located between the two first support plates along the width direction of the vehicle body. A seat crossbeam extends along the width direction of the vehicle body. Both ends of the seat crossbeam along the width direction of the vehicle body are connected to the corresponding box beams. Along the width direction of the vehicle body, the projection area of ​​the seat crossbeam and the projection area of ​​the first support plate at least partially overlap. The battery pack is located between the two sill beams and below the seat crossbeam; The battery pack includes a frame, battery cells, and mounting beams. The battery cells are mounted on the inner side of the frame. Mounting beams are provided on opposite sides of the frame along the width direction of the vehicle body. Each mounting beam is connected to the side of the frame opposite to the battery cell along the width direction of the vehicle body. The mounting beam includes an upper beam plate, a lower beam plate, and a transition plate connecting the upper beam plate and the lower beam plate. The frame includes an outer frame and reinforcing ribs disposed within the outer frame. The outer frame and the reinforcing ribs enclose a clearance area. The upper beam plate is aligned with the corresponding reinforcing rib, and the lower beam plate is aligned with the clearance area.

2. The vehicle according to claim 1, characterized in that, The wall of the receiving cavity includes a guide surface located on the side of the receiving cavity facing the battery pack. A first support plate near the battery pack is located above the guide surface. The inner end of the guide surface is inclined upward. A first reinforcing beam near the battery pack can abut against the guide surface during a collision.

3. The vehicle according to claim 1, characterized in that, The threshold beam also includes a mounting plate connected to the box girder. The mounting plate is located at least partially within the receiving cavity. Two first reinforcing beams are connected to the mounting plate, and the mounting plate is located between the two first reinforcing beams. The first reinforcing beams and the box girder are arranged at intervals.

4. The vehicle according to any one of claims 1 to 3, characterized in that, Each side of the box girder includes two main beams arranged opposite each other along the width direction of the vehicle body. The two main beams arranged opposite each other form the receiving cavity. The main beams are connected to the vehicle body. The seat crossbeam is installed on the main beam near the battery pack. The main beam near the battery pack has a plate-shaped connecting part. The connecting part is installed above the upper beam plate. The upper beam plate and the lower beam plate are both connected to the outside of the outer frame. The battery cell is located inside the outer frame.

5. The vehicle according to claim 4, characterized in that, The battery pack also includes a second reinforcing beam connected above the mounting beam. The second reinforcing beam is located between the main beam and the frame. The outer end face of the seat crossbeam and the outer end face of the second reinforcing beam are aligned in the vertical direction. The second reinforcing beam and the main beam are spaced apart along the width direction of the vehicle body.

6. The vehicle according to claim 5, characterized in that, The second reinforcing beam includes a first beam plate and a second beam plate. The first beam plate is spaced apart from the upper beam plate. The second beam plate is connected to the upper beam plate and the first beam plate respectively. The first beam plate is aligned with the corresponding reinforcing rib. The outer end face of the seat crossbeam and the outer end face of the second beam plate are aligned in the vertical direction.

7. The vehicle according to claim 6, characterized in that, The reinforcing rib aligned with the first beam plate is the first reinforcing rib, and the reinforcing rib aligned with the upper beam plate is the second reinforcing rib. The battery pack also includes a support assembly located inside the frame. The two ends of the support assembly along the width direction of the vehicle body are respectively connected to the frame. The support assembly extends along the width direction of the vehicle body. The support assembly has a plate-shaped first support portion and a second support portion. The first support portion is aligned with the first reinforcing rib, and the second support portion is aligned with the second reinforcing rib.

8. The vehicle according to claim 7, characterized in that, The support components include: A protective sleeve is attached to the inside of the frame; A support beam extends along the width direction of the vehicle body. Protective sleeves are provided at both ends of the support beam. Each protective sleeve abuts against the corresponding end of the support beam along the extension direction of the support beam. A first support portion and a second support portion are both formed on the support beam. The first support portion spans across the protective sleeves at both ends, and the second support portion spans across the protective sleeves at both ends.

9. The vehicle according to claim 8, characterized in that, The protective sleeve includes: A guard plate is installed on the inner side of the frame, and the corresponding end of the support beam abuts against the inner side of the guard plate. A boss is connected to the inner side of the guard plate, and the boss is located between the first support part and the second support part; A partition is located inside the protective plate, and the partition is arranged at intervals with the protective plate. The partition is sleeved on the supporting crossbeam. A stiffening plate connects the guard plate and the partition plate.

10. The vehicle according to claim 8, characterized in that, The support assembly also includes a pressure beam connected to the protective sleeve. The pressure beam is located above the support beam and is spaced apart from the support beam. The pressure beam spans across the two ends of the protective sleeve.

11. The vehicle according to claim 4, characterized in that, The main beam includes a fourth support plate, a fifth support plate, and a sixth support plate connected in sequence. The fifth support plate is connected between the fourth support plate and the sixth support plate along the width direction of the vehicle body. The fourth support plate has the fifth support plate and the sixth support plate on opposite sides along the vertical direction. The fifth support plates on both sides are located between the sixth support plates on both sides. The fifth support plate and the sixth support plate are located between the two fourth support plates along the width direction of the vehicle body. Among the fifth support plates located below the fourth support plate, the fifth support plate closest to the battery pack is the target support plate, and the connecting part is formed on the target support plate.

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