Threshold stiffening beam, threshold assembly, vehicle body structure and vehicle

Abstract

The utility model relates to a threshold stiffening beam, a threshold assembly, a vehicle body structure and a vehicle, the threshold stiffening beam comprises a stiffening beam body, the stiffening beam body is fixedly connected with the threshold beam, and the thickness of the end, close to an A column assembly, of the stiffening beam body is larger than that of the end, away from the A column assembly, of the stiffening beam body. According to the threshold stiffening beam, the thickness of the stiffening beam body is set to be that the thickness of the end close to the A-pillar assembly is larger than that of the end far away from the A-pillar assembly, so that the stiffening beam body can effectively prevent a passenger compartment from being damaged by forward collision of a vehicle through the end with the larger thickness; and force generated by lateral collision of the vehicle can be absorbed through lateral deformation, so that the threshold stiffening beam can effectively improve the collision safety performance of the vehicle.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicle safety, in particular, to a rocker reinforcement beam, and a rocker assembly, a vehicle body structure and a vehicle applying the rocker reinforcement beam. BACKGROUND

[0002] As an important part of protecting the battery of the vehicle from the side, the rocker in the related art is mainly divided into a full-aluminum extruded multi-rib rocker beam and an inner and outer steel sheet, a rocker beam with a steel or aluminum reinforcement inside, the former has good protection effect, but the cost of full-aluminum material is high, and the latter can only effectively avoid side collision and is difficult to effectively protect against forward collision. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present disclosure is to provide a rocker reinforcement beam, a rocker assembly, a vehicle body structure and a vehicle, which has good protection effect against side and forward collision at low cost.

[0004] In order to achieve the above-mentioned purpose, according to a first aspect of the present disclosure, a rocker reinforcement beam is provided for being arranged in a rocker beam, the rocker includes oppositely arranged inner and outer rocker side plates, and comprises:

[0005] A reinforcement beam body is fixedly connected with the rocker beam, and the thickness of the reinforcement beam body near one end of the A-pillar assembly is greater than the thickness of the reinforcement beam body away from the one end of the A-pillar assembly.

[0006] Optionally, the rocker beam includes oppositely arranged inner and outer rocker side plates, and the reinforcement beam body is fixedly connected to the inner rocker side plate.

[0007] Optionally, the reinforcement beam body includes a first reinforcement beam and a second reinforcement beam, the first reinforcement beam is fixedly connected with the inner rocker side plate, and the second reinforcement beam is fixedly connected to the top surface of the first reinforcement beam and located at one end of the first reinforcement beam near the A-pillar assembly.

[0008] Optionally, the first reinforcement beam includes at least two first horizontal plates spaced apart in a first direction, and at least two first vertical plates spaced apart between adjacent two first horizontal plates in a second direction, two ends of the first vertical plate are fixedly connected with two first horizontal plates respectively.

[0009] Optionally, the distance between adjacent two first horizontal plates gradually decreases from the inner rocker side plate toward the outer rocker side plate.

[0010] Optionally, the thickness of the first horizontal plate near one end of the inner rocker side plate is greater than the thickness of the first horizontal plate near one end of the outer rocker side plate.

[0011] Optionally, the thickness of the first horizontal plate gradually increases in a direction from the outer side sill to the inner side sill.

[0012] Optionally, the thickness of the first horizontal plate is not less than 2.2 mm.

[0013] Optionally, the first reinforcement beam has an extension length in the third direction greater than or equal to the length of the battery pack in the third direction, for protecting the battery pack.

[0014] Optionally, the reinforcement beam body is provided with a matching portion for matching with the inner side sill to connect the reinforcement beam body with the inner side sill.

[0015] Optionally, the matching portion includes connecting plates provided at both ends of the reinforcement beam body in the length direction, and the connecting plates and the inner side sill are provided with matching connecting holes.

[0016] Optionally, the second reinforcement beam includes at least two second horizontal plates spaced apart in the first direction, and at least two second vertical plates spaced apart in the second direction between adjacent two second horizontal plates, and two ends of the second vertical plate are fixedly connected with two second horizontal plates respectively.

[0017] Optionally, the thickness of the second horizontal plate and the second vertical plate is not less than 2.6 mm.

[0018] Optionally, the length of the second reinforcement beam is less than the length of the first reinforcement beam.

[0019] Optionally, the first reinforcement beam and the second reinforcement beam are extrusion molded structural members.

[0020] The second aspect of the present disclosure further provides a rocker assembly, including a rocker beam and the rocker reinforcement beam in the above embodiments.

[0021] The rocker beam includes an inner side sill and an outer side sill, and the rocker reinforcement beam is connected to the inner side sill.

[0022] Optionally, the outer side sill is provided with a fixed plate, the bottom surface of the reinforcement beam body is fixedly connected to the fixed plate, and the side of the reinforcement beam body close to the inner side sill is fixedly connected to the inner side sill.

[0023] The third aspect of the present disclosure further provides a vehicle body structure, including an A-pillar assembly and the rocker assembly in the above embodiments.

[0024] Optionally, the A-pillar assembly comprises a reinforcing plate, and the reinforcing beam body is fixedly connected with the reinforcing plate near an end of the A-pillar assembly.

[0025] The fourth aspect of the present disclosure also provides a vehicle comprising the vehicle body structure described in the above embodiments.

[0026] Compared with the related art, the door sill reinforcing beam of the present disclosure has the advantages that: by setting the thickness of the reinforcing beam body to be greater near one end of the A-pillar assembly than away from the other end of the A-pillar assembly, the reinforcing beam body can effectively prevent damage to the passenger compartment caused by a forward collision of the vehicle through the thicker end, and can also absorb the force generated by a lateral collision of the vehicle through the lateral deformation, thereby effectively improving the collision safety performance of the vehicle.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 is a structural schematic view of a door sill assembly provided in an exemplary embodiment of the present disclosure;

[0030] Figure 2 is a front view of a door sill reinforcing beam provided in an exemplary embodiment of the present disclosure;

[0031] Figure 3 is a cross-sectional view of a door sill reinforcing beam provided in an exemplary embodiment of the present disclosure;

[0032] Figure 4 is another structural schematic view of a door sill assembly provided in an exemplary embodiment of the present disclosure.

[0033] EXPLANATION OF REFERENCE NUMERALS

[0034] 1-reinforcing beam body; 11-first reinforcing beam; 111-first transverse plate; 112-first longitudinal plate; 12-second reinforcing beam; 121-second transverse plate; 122-second longitudinal plate; 13-mating portion; 131-connection plate; 132-connection hole;

[0035] 2-inner door sill side plate; 3-outer door sill side plate; 31-fixing plate; 4-A-pillar assembly; 41-reinforcing plate. DETAILED DESCRIPTION

[0036] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0037] In the present disclosure, the orientation words such as "upper, lower, high, low, top, bottom" used without the opposite description generally refer to the orientation of the corresponding components or structures in the direction of gravity. "Inner, outer" refers to the inner and outer of the outline of the corresponding components. In addition, it should be noted that the terms such as "first, second" used are for distinguishing one element from another element, and do not have sequential and important meanings. In addition, in the description with reference to the drawings, the same reference signs in different drawings represent the same elements. The above definitions are only used to explain and illustrate the present disclosure, and should not be understood as a limitation of the present disclosure.

[0038] The present disclosure relates to a rocker reinforcement beam arranged in a rocker beam, which can effectively deal with the collision from the side and the front of the vehicle during driving, and effectively protect the vehicle body and the battery pack, see Figure 1 and Figure 2 The rocker reinforcement beam of the present disclosure comprises a reinforcement beam body 1, the reinforcement beam body 1 is fixed with the rocker beam, and the thickness of the reinforcement beam body 1 near one end of the A-pillar assembly 4 is greater than the thickness of the reinforcement beam body 1 away from one end of the A-pillar assembly 4. It should be noted that the thickness is the thickness of the reinforcement beam body 1 in the Z direction.

[0039] By setting the thickness of the reinforcement beam body 1 to be different, that is, the part near the A-pillar assembly has a larger thickness, and the part away from the A-pillar has a smaller thickness, on the one hand, the end of the reinforcement beam body 1 near the A-pillar assembly 4 can have sufficient impact strength when the vehicle is subjected to a frontal collision, can withstand greater impact load, avoid large area failure and bending, better protect the passenger compartment, and the vehicle has better collision safety performance; on the other hand, since the end of the reinforcement beam body 1 away from the A-pillar assembly 4 will not be subjected to a frontal collision, the thickness is set to be smaller, which can effectively save materials and reduce manufacturing costs. When the vehicle is subjected to a lateral collision, the reinforcement beam body 1 will deform after being subjected to a collision to absorb the force generated by the collision, reduce the intrusion of the vehicle body, protect the passengers therein, and further improve the collision safety performance of the vehicle.

[0040] The rocker reinforcement beam of the present disclosure sets the thickness of the reinforcement beam body 1 to be greater near one end of the A-pillar assembly 4 than away from one end of the A-pillar assembly 4, so that the reinforcement beam body 1 can effectively prevent damage to the passenger compartment caused by a frontal collision of the vehicle through the end with a larger thickness, and can also absorb the force generated by a lateral collision of the vehicle through the deformation of the side, thereby enabling the rocker reinforcement beam of the present disclosure to effectively improve the collision safety performance of the vehicle.

[0041] In an embodiment of the present disclosure, referring toFigure 1 And Figure 2 The threshold beam can include oppositely arranged inner and outer threshold side plates 2 and 3, and the reinforcing beam body 1 is fixedly connected to the inner threshold side plate 2 so that the reinforcing beam body 1 can be more stable in the threshold beam. Of course, in other embodiments, the threshold beam can also be of other structures, for example, it can be a hollow overall structure, and the reinforcing beam body 1 can be arranged in the internal cavity of the threshold beam and fixedly connected to the inner side wall of the internal cavity. The specific arrangement can be determined according to actual conditions, and the present disclosure does not limit this.

[0042] In an embodiment of the present disclosure, referring to Figure 1 And Figure 2 A matching part 13 is arranged on the reinforcing beam body 1, and the reinforcing beam body 1 can be matched with the inner threshold side plate 2 through the matching part 13 to fixedly connect the reinforcing beam body 1 to the inner threshold side plate 2. For example, in some embodiments, referring to a connecting plate 131 is arranged at both ends of the reinforcing beam body 1, and connecting holes 132 are arranged on the connecting plate 131 and the inner threshold side plate 2. When connecting the reinforcing beam body 1 and the inner threshold side plate 2, the reinforcing beam body 1 can be attached to the inner threshold side plate 2, so that the connecting holes 132 on the connecting plate 131 of the reinforcing beam body 1 are opposite to the connecting holes 132 on the inner threshold side plate 2. Then, a fastening bolt can be passed through the two connecting holes 132 and tightened, so that the reinforcing beam body 1 is fixedly connected to the inner threshold side plate 2 through the connecting plate 131. In other embodiments, structure glue can also be arranged on the side where the reinforcing beam body 1 and the inner threshold side plate 2 are attached to each other, so as to enhance the connection effect between the reinforcing beam body 1 and the inner threshold side plate 2. Of course, the matching part 13 can also be of any other suitable structure, as long as it can connect the reinforcing beam body 1 to the inner threshold side plate 2. The specific arrangement can be determined according to actual conditions, and the present disclosure does not limit this.

[0043] In an embodiment of the present disclosure, referring to Figure 2 And Figure 3The first reinforcing beam 11 is fixedly connected with the inner rocker side panel 2, and the second reinforcing beam 12 is fixedly connected on the top surface of the first reinforcing beam 11 in a manner known to those skilled in the art such as welding, bolt connection or FDS connection, and the second reinforcing beam 12 is located at one end of the first reinforcing beam 11 close to the A-pillar assembly, and has a length smaller than that of the first reinforcing beam 11, so that the thickness of the reinforcing beam body 1 close to the A-pillar assembly 4, that is, the position of the vehicle subjected to the forward collision, can be greater than the thickness of the reinforcing beam body 1 away from the A-pillar assembly 4 by the superposition of the thicknesses of the first reinforcing beam 11 and the second reinforcing beam 12, and the thickness of the reinforcing beam body 1 away from the A-pillar assembly 4 is the thickness of the first reinforcing beam 11. Of course, in other embodiments, the reinforcing beam body 1 can also have different thicknesses in other structures, for example, the thickness can gradually decrease from the end close to the A-pillar assembly 4 to the end away from the A-pillar assembly 4, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0044] In an embodiment of the present disclosure, referring to Figure 2 and Figure 3 , the first reinforcing beam 11 comprises at least two first transverse plates 111 arranged at intervals in a first direction (Z), and at least two first longitudinal plates 112 arranged at intervals in a second direction (Y) between adjacent two first transverse plates 111, and two ends of the first longitudinal plate 112 are fixedly connected with the two first transverse plates 111, respectively. Among them, the first transverse plate 111 arranged at intervals can deform when the first reinforcing beam 11 is subjected to a lateral collision of the vehicle, so as to absorb the force generated by the collision, reduce the intrusion of the vehicle body, and protect the passengers in the vehicle, and the first longitudinal plate 112 can provide support for the first transverse plate 111, increase the strength of the entire first reinforcing beam 11, and ensure that the first reinforcing beam 11 can withstand greater impact load when the vehicle is subjected to a forward collision, avoid large-area failure and bending, and better protect the passenger compartment. Of course, in other embodiments, the first reinforcing beam 11 can also have other structures, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0045] In an embodiment of the present disclosure, referring to Figure 2 and Figure 3 , the distance between adjacent two first transverse plates 111 gradually decreases from the inner rocker side panel 2 to the outer rocker side panel 3. In this way, the shape of the first reinforcing beam 11 can be more adapted to the shape of the space enclosed by the inner rocker side panel 2 and the outer rocker side panel 3, and of course, in other embodiments, the distance between adjacent two first transverse plates 111 can also be parallel, or close to each other, or not the same, which will not be described in detail here.

[0046] In an embodiment of the present disclosure, referring toFigure 2 and Figure 3 The thickness of the first transverse plate 111 near the end of the inner side sill side plate 2 is greater than the thickness of the first transverse plate 111 near the end of the outer side sill side plate 3. In this way, when the vehicle is subjected to a lateral collision, the first transverse plate 111 can gradually collapse from the outer side sill side plate 3 to the inner side sill side plate 2 due to the uneven thickness, ensuring the effect of the first transverse plate 111 absorbing force and reducing the intrusion of the vehicle body, and the first transverse plate 111 will not directly bend from the middle section or the end section, affecting the effect of the first transverse plate 111.

[0047] In one embodiment of the present disclosure, referring to Figure 2 and Figure 3 The first transverse plate 111 is stepped or gradually increased in the direction from the outer side sill side plate 3 to the inner side sill side plate 2, so that the thickness of the first transverse plate 111 near the end of the inner side sill side plate 2 can be greater than the thickness of the first transverse plate 111 near the end of the outer side sill side plate 3. The first transverse plate 111 in a stepped distribution can be fixedly connected by two plates with different thicknesses to combine to form a first transverse plate 111 with different thicknesses, and the first transverse plate 111 in a gradual change shape needs to be completed during processing. Of course, in other embodiments, the first transverse plate 111 can be manufactured with different thicknesses by other means, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0048] In one embodiment of the present disclosure, the thickness of the first transverse plate 111 is not less than 2.2mm, and the thickness of the first longitudinal plate 112 is not less than 1.8mm. Such thickness setting can ensure the strength of the first reinforcing beam 11 while making the first reinforcing beam 11 have lower cost and lighter weight, thereby facilitating subsequent manufacturing and assembly.

[0049] In one specific embodiment of the present disclosure, referring to Figure 2 and Figure 3 The first reinforcing beam 11 includes two first transverse plates 111 and five first longitudinal plates 112. The thickness of the two first transverse plates 111 near the end of the outer side sill side plate 2 is 2.2mm, and the thickness of the two first transverse plates 111 near the end of the inner side sill side plate 3 is 2.4mm. The two first transverse plates 111 are arranged in a spaced manner, and the distance between the two first transverse plates 111 gradually increases in the direction from the outer side sill side plate 3 to the inner side sill side plate 2. The thickness of the five first longitudinal plates 112 is 1.8mm, and the five first longitudinal plates 112 are arranged in a spaced manner between the two first transverse plates 111, so that the first transverse plate 111 has the lightest mass and the lowest cost under the condition of having sufficient crashworthiness.

[0050] In one embodiment of the present disclosure, the first reinforcing beam 11 has an extension length in the third direction that is greater than or equal to the length of the battery pack in the third direction (X). In this way, the first reinforcing beam 11 can effectively protect the battery pack from damage when the vehicle is subjected to a lateral collision, avoiding greater losses due to damage to the battery pack caused by a lateral collision.

[0051] In one embodiment of the present disclosure, referring to Figure 2 and Figure 3 , the second reinforcing beam 12 includes at least two second transverse plates 121 spaced apart in the first direction (Z), and at least two second longitudinal plates 122 spaced apart between adjacent two second transverse plates 121 in the second direction (Y), and two ends of the second longitudinal plate 122 are fixedly connected with the two second transverse plates 121 respectively. Among them, the second transverse plates 121 spaced apart can deform when the second reinforcing beam 12 is subjected to a lateral collision of the vehicle, so as to absorb the force generated by the collision and reduce the intrusion of the vehicle body, thereby protecting the passengers in the vehicle. The second longitudinal plate 122 can provide support for the second transverse plate 121 and increase the strength of the entire second reinforcing beam 12, so as to ensure that the second reinforcing beam 12 can withstand greater impact load when the vehicle is subjected to a frontal collision, thereby avoiding large-area failure and bending and better protecting the passenger compartment. Of course, in other embodiments, the second reinforcing beam 12 can also have other structures, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0052] In one embodiment of the present disclosure, the thickness of the second transverse plate 121 and the second longitudinal plate 122 is not less than 2.6 mm. Such thickness can ensure the strength of the second reinforcing beam 12 while making the second reinforcing beam 12 have lower cost and lighter weight, thereby facilitating subsequent manufacturing and assembly.

[0053] In one specific embodiment of the present disclosure, referring to Figure 2 and Figure 3 , the second reinforcing beam 12 includes two second transverse plates 121 and four second longitudinal plates 122, the two second transverse plates 121 have a thickness of 2.6 mm and are spaced apart, and the distance between the two second transverse plates 121 gradually increases in the direction from the outer rocker side plate 3 to the inner rocker side plate 2, and the four second longitudinal plates 122 have a thickness of 2.6 mm and are spaced apart between the two second transverse plates 121, so that the second transverse plate 121 has the lightest mass and the lowest cost under the condition of having sufficient collision resistance.

[0054] In one embodiment of the present disclosure, referring to Figure 2 and Figure 3The first reinforcing beam 11 and the second reinforcing beam 12 can adopt an extrusion forming structure, can be extruded by aluminum, or other materials known to those skilled in the art. Extrusion forming can significantly improve the dimensional accuracy and surface quality of metal products. Compared with rolling, forging and other processing methods, the dimensional accuracy of the extruded product is higher, the surface quality is better, and the extrusion forming can also produce solid and hollow profiles with complex cross-sectional shapes, even some products that are difficult to form by other processing methods, so that the first reinforcing beam 11 and the second reinforcing beam 12 have better quality and more complex shapes to adapt to different vehicle models and use scenarios.

[0055] The rocker reinforcing beam of the present disclosure can ensure that the reinforcing beam body 1 has sufficient impact strength through the first reinforcing beam 11 and the second reinforcing beam 12 when the vehicle is subjected to a forward collision, can withstand greater impact load, avoid large-area failure and bending, better protect the passenger compartment, and make the vehicle have better collision safety performance. When subjected to a lateral collision, the thickness of the first transverse plate 111 in the first reinforcing beam 11 gradually changes, which can ensure that the first transverse plate 111 gradually collapses in deformation, absorb more collision-generated forces, reduce vehicle intrusion, protect the passengers, and further improve the collision safety performance of the vehicle.

[0056] The second aspect of the present disclosure also provides a rocker assembly, referring to Figure 1 and Figure 4 , comprising the rocker reinforcing beam described in the above embodiments, and a rocker beam, the rocker beam comprising an inner rocker side plate 2 and an outer rocker side plate 3, and the rocker reinforcing beam is connected to the inner rocker side plate 2. The rocker assembly of the present disclosure can effectively cope with collisions from the side and front of the vehicle during driving by setting the rocker reinforcing beam in the above embodiments, effectively protecting the vehicle body, passenger compartment, battery pack and the like. For details, please refer to the description of the above rocker reinforcing beam embodiments, which will not be repeated here.

[0057] In an embodiment of the present disclosure, referring to Figure 1 and Figure 4The fixing plate 31 is further arranged on the outer side rocker side plate 3, and the bottom surface of the reinforcing beam body 1 is fixedly connected to the fixing plate 31. The side close to the inner side rocker side plate 2 is connected through the matching part 13 and structural glue. Through the fixing plate 31, the end of the reinforcing beam body 1 close to the outer side rocker side plate 2 is fixedly connected to the fixing plate 31. In the case of lateral collision of the vehicle, the reinforcing beam body 1 can be prevented from moving downward due to extrusion, instead of transversely deforming, so as to avoid the case that the effect of the reinforcing beam body 1 is poor, and the stability of the reinforcing beam body 1 in the case of lateral collision of the vehicle is improved. The fixing plate 31 can be arranged in multiple, and is arranged in the extension direction of the reinforcing beam body 1 to further improve the stability of the reinforcing beam body 1 in the case of lateral collision of the vehicle.

[0058] The third aspect of the present disclosure further provides a vehicle body structure, referring to Figure 1 and Figure 4 , comprising the rocker beam assembly described in the above embodiments, and an A-pillar assembly 4. The A-pillar assembly 4 comprises a reinforcing plate 41. Through the reinforcing plate 41, the strength of the A-pillar is enhanced, the performance of the vehicle body in resisting the forward collision is improved, and the end of the reinforcing beam body 1 close to the A-pillar assembly 4 can be fixedly connected to the reinforcing plate 41. The fixed connection mode can be one or more of bolt connection, FDS connection or structural glue connection, or other fixed connection modes known to those skilled in the art, so that the reinforcing plate 41, the reinforcing beam body 1 and the rocker beam form an integral whole, further improving the stability and safety performance of the vehicle in the case of collision.

[0059] The fourth aspect of the present disclosure further provides a vehicle comprising the vehicle body structure described in the above embodiments. The vehicle of the present disclosure has good safety and collision resistance in the case of forward and lateral collision. For details, refer to the description in the above embodiments, which will not be described here.

[0060] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0061] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combination manners are not described again in the present disclosure.

[0062] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A rocker reinforcement beam for placement in a rocker beam, characterized by, The application relates to a reinforcing beam body which is fixedly connected with a rocker beam and has a thickness gradually increasing from the end of the reinforcing beam body close to an A-pillar assembly to the end of the reinforcing beam body far from the A-pillar assembly. The rocker beam comprises oppositely arranged inner and outer rocker side plates, and the reinforcing beam body is fixedly connected with the inner rocker side plate.

2. The rocker reinforcement beam of claim 1, wherein, The reinforcing beam body comprises a first reinforcing beam and a second reinforcing beam, the first reinforcing beam is fixedly connected with the inner rocker side plate, and the second reinforcing beam is fixedly connected on the top surface of the first reinforcing beam and located at the end of the first reinforcing beam close to the A-pillar assembly.

3. The rocker reinforcement beam of claim 2, wherein, The first reinforcing beam comprises at least two first horizontal plates arranged in a first direction and at least two first vertical plates arranged in a second direction between two adjacent first horizontal plates, and the two ends of the first vertical plate are fixedly connected with the two first horizontal plates respectively.

4. The rocker reinforcement beam of claim 3, wherein, The distance between two adjacent first horizontal plates gradually decreases from the inner rocker side plate to the outer rocker side plate.

5. The rocker reinforcement beam of claim 4, wherein, The thickness of the first horizontal plate gradually increases from the end of the first horizontal plate close to the inner rocker side plate to the end of the first horizontal plate close to the outer rocker side plate.

6. The rocker reinforcement beam of claim 4, wherein, The thickness of the first horizontal plate gradually increases from the outer rocker side plate to the inner rocker side plate.

7. The rocker reinforcement beam of claim 6, wherein, The thickness of the first vertical plate is not less than 1.8 mm, and the thickness of the first horizontal plate is not less than 2.2 mm.

8. The rocker reinforcement beam of claim 4, wherein, The extension length of the first reinforcing beam in a third direction is greater than or equal to the length of a battery pack in the third direction, so as to protect the battery pack.

9. The rocker reinforcement beam of claim 4, wherein, The reinforcing beam body is provided with a matching part for matching with the inner rocker side plate to connect the reinforcing beam body with the inner rocker side plate.

10. The rocker reinforcement beam of claim 2, wherein, The matching part comprises connecting plates arranged at the two ends of the reinforcing beam body in the length direction, and the connecting plates and the inner rocker side plate are provided with matching connecting holes.

11. The rocker reinforcement beam of claim 10, wherein, The second reinforcing beam comprises at least two second horizontal plates arranged in a first direction and at least two second vertical plates arranged in a second direction between two adjacent second horizontal plates, and the two ends of the second vertical plate are fixedly connected with the two second horizontal plates respectively.

12. The rocker reinforcement beam of claim 3, wherein, The thickness of the second horizontal plate and the second vertical plate is not less than 2.6 mm.

13. The rocker reinforcement beam of claim 12, wherein, The length of the second reinforcing beam is less than the length of the first reinforcing beam.

14. The rocker reinforcement beam of claim 3, wherein, The first reinforcing beam and the second reinforcing beam adopt an extrusion forming structure.

15. The rocker reinforcement beam of claim 3, wherein, The application further relates to a rocker beam and a rocker reinforcing beam according to any one of claims 1-15.

16. A rocker assembly characterized by, The rocker beam comprises inner and outer rocker side plates, and the rocker reinforcing beam is connected with the inner rocker side plate. The outer rocker side plate is provided with a fixed plate, the bottom surface of the reinforcing beam body is fixedly connected with the fixed plate, and the side of the reinforcing beam body close to the inner rocker side plate is fixedly connected with the inner rocker side plate.

17. The rocker assembly of claim 16, wherein, The application further relates to an A-pillar assembly and a rocker assembly according to any one of claims 16-17.

18. A vehicle body structure characterized by comprising: The A-pillar assembly comprises a reinforcing plate, and the end of the reinforcing beam body close to the A-pillar assembly is fixedly connected with the reinforcing plate.

19. The vehicle body structure according to claim 18, characterized by The application further relates to a vehicle body structure according to any one of claims 18-19.

20. A vehicle characterized by ​

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