CN218806164U - Threshold roof beam and vehicle - Google Patents

Abstract

The application discloses a threshold beam and a vehicle, the threshold beam comprises a beam body and a support assembly, the beam body is provided with a wall portion and a hollow cavity formed by the wall portion in a surrounding mode, the wall portion comprises a front wall, a rear wall, a top wall and a bottom wall, the front wall and the rear wall are arranged oppositely, and the top wall and the bottom wall are connected to the front wall and the bottom wall respectively and are arranged oppositely; the supporting component is arranged in the hollow cavity and connected with the beam body, and divides the hollow cavity into a plurality of sub-cavities; wherein the strength of the front wall is less than the strength of the rear wall. The doorsill beam can effectively absorb collision load and resist collision, so that the safety performance of a vehicle is improved.

Description

Threshold roof beam and vehicle

Technical Field

The application belongs to the vehicle field, especially relates to a threshold roof beam and vehicle.

Background

The body of the vehicle is the foundation of the safety of the whole vehicle, and the doorsill beam is used as a reinforcing structure at the lower part of the vehicle and plays an important role in the side collision and the frontal collision processes of the whole vehicle.

The existing doorsill beam is usually composed of a doorsill inner plate and a doorsill outer plate and forms a cavity, the doorsill inner plate and the doorsill outer plate are usually made of materials with the same strength, and the doorsill beam with the structure cannot have the capability of simultaneously considering bending resistance and crushing resistance when a vehicle is collided in a face-to-face mode, so that potential safety hazards exist in the vehicle.

Therefore, how to design the structure of the doorsill beam is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a threshold roof beam and vehicle, and this threshold roof beam can effective absorption collision load, resist the collision to improve the security performance of vehicle.

An embodiment of a first aspect of an embodiment of the present application provides a threshold beam, including: the beam body is provided with a wall part and a hollow cavity formed by enclosing the wall part, the wall part comprises a front wall, a rear wall, a top wall and a bottom wall, the front wall and the rear wall are arranged oppositely, and the top wall and the bottom wall are respectively connected with the front wall and the bottom wall and are arranged oppositely; the supporting component is arranged in the hollow cavity and connected with the beam body, and divides the hollow cavity into a plurality of sub-cavities; wherein the strength of the front wall is less than the strength of the rear wall.

According to an embodiment of the first aspect of the present application, the support assembly comprises at least one first support wall, the first support wall being located between the front wall and the rear wall, the first support wall being connected to the top wall and the bottom wall, respectively, the strength of the front wall being greater than the strength of the first support wall.

In accordance with any preceding embodiment of the first aspect of the present application, the wall thickness of the front wall is less than the wall thickness of the rear wall and greater than the wall thickness of the first support wall.

According to any of the preceding embodiments of the first aspect of the present application, the strength of the top wall is less than the strength of the bottom wall.

According to any of the preceding embodiments of the first aspect of the present application, the support assembly further comprises at least one second support wall located between the top wall and the bottom wall and disposed intersecting the first support wall, the second support wall having a strength less than the strength of the top wall.

In accordance with any preceding embodiment of the first aspect of the present application, the wall thickness of the top wall is less than the wall thickness of the bottom wall and greater than the wall thickness of the second support wall.

According to any one of the preceding embodiments of the first aspect of the present application, the beam body and the support member are a unitary structure.

According to any one of the foregoing embodiments of the first aspect of the present application, the rocker beam further includes an avoidance space formed by one of the top wall and the bottom wall being recessed in a direction toward the other, and a bracket located in the avoidance space and connected to the beam body.

According to any one of the preceding embodiments of the first aspect of the present application, the beam body has a plurality of connection holes extending from the front wall to the rear wall.

Embodiments of the second aspect of the present application also provide a vehicle comprising any one of the rocker beams provided in the first aspect of the present application.

The application provides a threshold roof beam and vehicle, threshold roof beam include roof beam body and supporting component. The beam body is provided with a wall part and a hollow cavity formed by enclosing the wall part, the wall part comprises a front wall, a rear wall, a top wall and a bottom wall, the front wall and the rear wall are arranged oppositely, and the top wall and the bottom wall are connected to the front wall and the bottom wall respectively and are arranged oppositely. The supporting component is arranged in the hollow cavity and connected with the beam body, and the supporting component separates the hollow cavity to form a plurality of sub-cavities. Wherein, the intensity of antetheca is less than the intensity of back wall, when the vehicle bumps into or other operating mode conditions, the antetheca can take place deformation in order to absorb load better because intensity is little to more load that transmit to being close to vehicle interior position is dispersed, does benefit to the invasion volume of dispersed load, simultaneously, the back wall is because the invasion that intensity is big can resist load is in order to resist deformation, does benefit to the passenger safety on the inside important part of protection vehicle and the vehicle, prevents that inside important part from being extrudeed deformation and producing the safety problem. The threshold roof beam that this application provided can effective absorption collision load, resist the collision to improve the security performance of vehicle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present disclosure;

FIG. 2 is a schematic partial structural view of a vehicle according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a threshold beam according to an embodiment of the present disclosure;

fig. 4 is a schematic view of the sill beam of fig. 3 from another perspective.

In the drawings:

1-a vehicle;

2-sill beam; 21-a beam body; 21 a-connecting hole; 211-front wall; 212-rear wall; 213-a top wall; 214-a bottom wall; 215-a hollow cavity; 215 a-subcavity;

22-a support assembly; 221-a first support wall; 221 a-a first longitudinal support wall; 221 b-a second longitudinal support wall; 222-a second support wall; 222 a-a first lateral support wall; 222 b-a second lateral support wall; 222 c-a third lateral support wall; 23-avoiding space; 24-bracket.

Detailed Description

In order that the above-mentioned objects, features and advantages of the present application may be more clearly understood, the solution of the present application will be further described below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein; it is to be understood that the embodiments described in this specification are only some embodiments of the present application and not all embodiments.

The inventor of the present invention has found that, in the rocker beam structure of the vehicle in the related art, when the vehicle is involved in a collision, the rocker beam cannot absorb and resist the collision load, so that the load is transmitted to the side of the vehicle interior close to the important component, and the important component is crushed and deformed, thereby causing a safety problem. Based on the studies on the above-described problems, the inventors have provided a rocker beam that can effectively absorb a collision load, resist a collision, prevent an inner important part from being crushed and deformed, and prevent a passenger on the vehicle from being affected by the collision load, thereby improving the safety performance of the vehicle, and a vehicle.

For a better understanding of the application, a rocker beam according to an embodiment of the application and a vehicle will be described in detail below with reference to fig. 1-4.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a vehicle 1 according to an embodiment of the present disclosure, and fig. 2 is a schematic partial structural diagram of the vehicle 1 according to the embodiment of the present disclosure. The application provides a vehicle 1 comprising a threshold beam 2.

The vehicle 1 that this application provided can be fuel automobile, gas automobile or new energy automobile, and new energy automobile can be pure electric vehicles, hybrid vehicle or extend form car etc. and this application does not do the special restriction.

In order to facilitate understanding of the embodiment of the present application, the vehicle 1 will be exemplified as a new energy vehicle, and an internal important component will be exemplified as a battery, and it is to be understood that the present application is not limited thereto.

Referring to fig. 2 to 4, fig. 3 is a schematic view of a sill beam 2 according to an embodiment of the present invention, and fig. 4 is a schematic view of the sill beam 2 shown in fig. 3 from another perspective.

The embodiment of the application provides a threshold beam 2, including roof beam body 21 and supporting component 22. The beam body 21 has a wall portion and a hollow cavity 215 enclosed by the wall portion, the wall portion includes a front wall 211, a rear wall 212, a top wall 213 and a bottom wall 214, the front wall 211 and the rear wall 212 are disposed opposite to each other, and the top wall 213 and the bottom wall 214 are respectively connected to the front wall 211 and the bottom wall 214 and disposed opposite to each other. The support member 22 is disposed in the hollow cavity 215 and connected to the beam body 21, and the support member 22 partitions the hollow cavity 215 into a plurality of sub-cavities 215a. Wherein the strength of the front wall 211 is less than the strength of the rear wall 212.

In the embodiment of the present application, when the vehicle 1 collides or under other working conditions, because the strength of the front wall 211 is less than that of the rear wall 212, the front wall 211 can be better deformed to absorb the load due to low strength, so as to disperse more load transmitted to the position close to the battery, and meanwhile, the rear wall 212 inside the battery close to the battery can resist the intrusion of the load to resist deformation due to high strength, so as to protect the battery from being attacked by the load to generate the compression deformation, thereby better improving the safety performance of the vehicle 1. Moreover, the supporting component 22 is arranged in the beam body 21, so that not only can collision be resisted, but also the bending resistance of the beam body 21 can be improved, the deformation caused by collision load absorption is facilitated, and the problem that the connectivity of the sill beam 2 and the vehicle body of the vehicle 1 is reduced due to warping is solved, so that the safety of a battery is protected, and the safety performance of the vehicle 1 is improved.

It will be appreciated that the front wall 211 is disposed at an outer surface of the vehicle 1 and the rear wall 212 is disposed adjacent to the battery inside the vehicle 1.

The supporting component 22 is disposed in the hollow cavity 215 and connected to the beam body 21, and the supporting component 22 partitions the hollow cavity 215 into a plurality of sub-cavities 215a, it can be understood that the supporting component 22 is disposed in the hollow cavity 215 and supports the beam body 21, which is beneficial to improving the supporting function of the beam body 21, and cooperates with the front wall 211, the rear wall 212, the top wall 213 and the bottom wall 214, so as to jointly resist the collision force applied to the vehicle 1, and improve the safety and reliability.

The support member 22 partitions the hollow cavity 215 into a plurality of sub-cavities 215a, and optionally, the plurality of sub-cavities 215a may have a cross-sectional shape of a "mouth", that is, the cross-sectional shape of the hollow cavity 215 may be a lattice type having a plurality of "mouth" shapes. Through the arrangement of the mode, the plurality of sub-cavities 215a provide deformation space for the beam body 21 and the support assembly 22, so that the threshold beam 2 can better absorb collision load through deformation, collision of the vehicle 1 is resisted, the load is prevented from being transmitted to one side, close to the battery, inside the vehicle 1, the battery is prevented from being extruded and deformed, passengers on the vehicle are prevented from being influenced by the collision load, and safety performance of the vehicle 1 is improved.

Alternatively, the front wall 211, the rear wall 212, the top wall 213 and the bottom wall 214 may be made of aluminum, which can reduce the weight of the rocker beam 2 to achieve a light weight design and meet the current trend of light weight of the vehicle 1.

Referring to fig. 3 and 4, in one possible embodiment, the supporting assembly 22 includes at least one first supporting wall 221, the first supporting wall 221 is located between the front wall 211 and the rear wall 212, the first supporting wall 221 is connected to the top wall 213 and the bottom wall 214, respectively, and the strength of the front wall 211 is greater than that of the first supporting wall 221.

In the embodiment of the present application, by providing at least one first support wall 221 between the front wall 211 and the rear wall 212, and the strength of the front wall 211 is greater than that of the first support wall 221, when the vehicle 1 is in a collision or other working conditions, the front wall 211 and the first support wall 221 can deform better due to low strength to absorb load, so as to disperse more load transmitted to the place close to the battery, and the rear wall 212 inside the battery close to the battery can resist the invasion of load to resist deformation due to high strength to protect the battery from being stressed and deformed by load attack, so as to improve the safety performance of the vehicle 1 better. Meanwhile, because the strength of the first support wall 221 is less than the strength of the front wall 211 and the rear wall 212, the first support wall 221 can better absorb the load to deform, so that the bending resistance of the beam body 21 is improved, the problem that the connectivity of the sill beam 2 with the vehicle body of the vehicle 1 is reduced due to the fact that the sill beam 2 is not warped is solved, the safety of the battery is protected, and the safety performance of the vehicle 1 is improved.

Alternatively, the first support wall 221 may be provided as one, and of course, the first support wall 221 may be provided as two or more. Alternatively, two or more first supporting walls 221 may be distributed at equal intervals, or may be distributed at unequal intervals as required. Alternatively, two or more first supporting walls 221 may be disposed in an intersecting manner, or may be disposed in a parallel configuration as required.

For example, the first support wall 221 may be provided in two, and the first support wall 221 includes a first longitudinal support wall 221a and a second longitudinal support wall 221b, so as to better disperse the load transmitted to the place close to the battery, improve the safety performance of the vehicle 1, and facilitate the light weight design of the vehicle 1.

Alternatively, the strength of the first longitudinal supporting wall 221a and the strength of the second longitudinal supporting wall 221b may be equal or may not be equal, as long as the strength is less than that of the front wall 211 and the rear wall 212.

In one possible embodiment, the wall thickness of the front wall 211 is smaller than the wall thickness of the rear wall 212 and larger than the wall thickness of the first support wall 221.

In the embodiment of the present application, the variation in strength may be achieved by varying the wall thickness thereof such that the strength of the front wall 211 is less than that of the rear wall 212 and greater than that of the first support wall 221, so that the rocker beam 2 can effectively absorb the collision load, resist the collision, and thus improve the safety performance of the vehicle 1.

Alternatively, the variation in strength may also be achieved by changing the density thereof, or the variation in strength may also be achieved by changing the material thereof.

In the present embodiment, the strength of the top wall 213 is less than the strength of the bottom wall 214.

Optionally, the top wall 213 is located far away from the battery inside the vehicle 1, and the bottom wall 214 is located near the battery of the vehicle 1, and as can be seen from the above analysis, in this way, when the vehicle 1 is in a collision or other working conditions, the top wall 213 can be better deformed to absorb the load due to the low strength, so as to disperse more load transmitted to the battery. The bottom wall 214 is strong enough to resist the intrusion of load and to resist deformation, so as to protect the battery from the load attack and the compression deformation, thereby improving the safety performance of the vehicle 1.

In a possible embodiment, the support assembly 22 further comprises at least one second support wall 222, the second support wall 222 being located between the top wall 213 and the bottom wall 214 and intersecting the first support wall 221, the strength of the second support wall 222 being less than the strength of the top wall 213.

In the embodiment of the present application, the strength of the second support wall 222 is less than that of the top wall 213. As can be seen from the above analysis, in this way, when the vehicle 1 is in a collision or other working conditions, the top wall 213 and the second support wall 222 can be better deformed to absorb the load due to the low strength, so as to disperse more load transmitted to the position close to the battery. The bottom wall 214 on the inner side close to the battery is strong to resist the intrusion of load and to resist deformation, so as to protect the battery from the load attack and to deform under pressure, thereby improving the safety performance of the vehicle 1.

Moreover, because the strength of the second support wall 222 is less than the strength of the front wall 211 and the rear wall 212, the second support wall 222 can better absorb the deformation of the load, so as to improve the bending resistance of the beam body 21, ensure that the vehicle beam body 21 does not warp and the connection with the vehicle body of the vehicle 1 is reduced, protect the safety of the battery and improve the safety performance of the vehicle 1.

Alternatively, the second support wall 222 may be provided as one, and of course, the second support wall 222 may be provided as a plurality. Optionally. The two or more second supporting walls 222 may be distributed at equal intervals, or may be distributed at unequal intervals as required. Alternatively, two or more second supporting walls 222 may be disposed in an intersecting manner, or may be disposed in a parallel structure as required.

At least one second supporting wall 222 is arranged between the top wall 213 and the bottom wall 214, and when a collision or other working conditions occur, the second supporting wall 222 and the wall share the collision load together, so that more load transmitted to the position close to the battery is dispersed, the battery is prevented from being extruded and deformed, and the safety performance of the vehicle 1 is improved.

Continuing to refer to fig. 4, exemplarily, the number of the second supporting walls 222 is three, and the second supporting walls 222 include a first lateral supporting wall 222a, a second lateral supporting wall 222b, and a third lateral supporting wall 222c.

Alternatively, the strength of the first, second and third lateral support walls 222a, 222b and 222c may be equal or unequal, as long as the strength is less than that of the top wall 213 and the bottom wall 214.

In the embodiment of the present application, the first support wall 221 and the second support wall 222 are disposed in an intersecting manner, so that deformation in different directions can occur, and a load absorbing effect can be better achieved, and the strength of the first support wall 221 and the strength of the second support wall 222 are smaller than the strength of the top wall 213, the bottom wall 214, the front wall 211 and the rear wall 212, so that the bending resistance of the beam body 21 can be further improved, and the safety performance of the vehicle 1 can be ensured.

Alternatively, the strength of the first supporting wall 221 and the strength of the second supporting wall 222 may be equal or may not be equal.

In one possible embodiment, the wall thickness of the top wall 213 is smaller than the wall thickness of the bottom wall 214 and larger than the wall thickness of the second support wall 222.

In the present embodiment, the variation in strength can be achieved by changing the wall thickness thereof such that the strength of the top wall 213 is less than that of the bottom wall 214 and greater than that of the second support wall 222, so that the rocker beam 2 can effectively absorb the collision load, resist the collision, and thus improve the safety of the vehicle 1.

Alternatively, the variation in strength may also be achieved by changing the density thereof, or the variation in strength may also be achieved by changing the material thereof.

The threshold beam 2 provided by the embodiment of the application has the advantages that the front wall 211, the top wall 213, the first supporting wall 221 and the second supporting wall 222 are small in strength, deformation can be generated to absorb load so as to reduce the invasion amount of the load, the strength of the bottom wall 214 and the rear wall 212 close to a battery is large, deformation resistance collision can be reduced so as to further reduce the invasion amount of the load, the battery is prevented from being extruded and deformed, and the safety performance of the vehicle 1 is improved.

Since the conventional beam body 21 and the support member 22 are usually formed by welding, not only more processing equipment is required, but also the manual welding cost is increased, so that the welding process cost is increased.

In order to solve this problem, in a possible embodiment, the beam body 21 and the support assembly 22 are an integral structure, which can reduce the production cost and the difficulty of machining and assembling, and can also reduce the number of parts used and assembled. Moreover, the integrated structure is adopted to prevent failure of the welding position, so that the strength and the safety can be better improved.

Alternatively, the beam body 21 and the support member 22 may be formed by an aluminum alloy extrusion process. The aluminum alloy density is much lighter than steel plate, wherein the aluminum alloy density is about 2.55-2.85g/cm 3, and the steel plate density is about 7.85g/cm 3, thereby enabling the beam body 21 and the support assembly 22 to be designed to be lighter.

In above-mentioned embodiment, need not to set up traditional inside and outside mosaic structure, also do not have the welding weak point, when the face collision or other operating mode conditions, the threshold roof beam 2 that this application provided can be more steady absorption collision energy to promote vehicle 1's collision performance, improve the reliability.

In a possible embodiment, the threshold beam 2 further comprises an escape space 23, which escape space 23 is formed by one of the top wall 213 and the bottom wall 214 being recessed in a direction towards the other, and a bracket 24, which bracket 24 is located in the escape space 23 and is connected to the beam body 21.

The threshold beam 2 provided by the embodiment of the application provides an avoiding space 23 to provide an installation environment for other components of the vehicle 1, so as to reduce the overall structural size of the vehicle 1, for example, a sliding door of the vehicle 1 can be arranged in the avoiding space 23. And, set up support 24 in dodging space 23 and being connected in roof beam body 21, do benefit to and couple together threshold roof beam 2 and vehicle 1 automobile body through support 24, can save installation space, and do benefit to the installation location, improve assembly efficiency.

Referring to fig. 3, the avoiding space 23 is formed by one of the top wall 213 and the bottom wall 214 being recessed toward the other, and alternatively, the avoiding space 23 may be formed by the beam body 21 by stamping a sheet metal or by bending a sheet metal. Alternatively, one of the top wall 213 and the top wall 213 connected below the escape space 23 can resist a load generated by a sliding door or other collision due to its high strength, thereby improving the structural strength.

Optionally, the second support wall 222 is connected below the evacuation space 23, and the strength of this portion of the second support wall 222 is greater than that of the other portion of the second support wall 222, so as to resist the load generated by sliding door or other collision and improve the structural strength. It is understood that the strength of the portion of the second support wall 222 connected below the avoidance space 23 may also be greater than the strength of other portions of the vehicle beam body 21.

Alternatively, to achieve the connection of the rocker beam 2 to the body of the vehicle 1, the bracket 24 may be connected to the C-pillar of the body of the vehicle 1 to connect the rocker beam 2 to the body of the vehicle 1.

Alternatively, the beam body 21 and the bracket 24 may be connected by FDS, which is a spin-tap-and-rivet process, and a cold forming process of tapping and riveting after thermally deforming a plate by high-speed rotation. Through the connection mode, the air-tightness, the water-tightness and the dynamic bearing capacity can be better.

Alternatively, when the vehicle 1 belongs to an upper-steel lower-aluminum vehicle body structure, the C-pillar and the bracket 24 are generally made of steel, the beam body 21 is generally made of aluminum, and the threshold beam 2 is welded with the C-pillar into a whole through the steel bracket 24, so that load dispersion and transmission during collision can be realized, the collision performance of the vehicle 1 is improved, and mutual stability among components is ensured.

Alternatively, when the vehicle 1 is of a pure aluminum body construction, the bracket 24 and C-pillar may be joined together by SPR, which is a process collectively referred to as self-piercing riveting, a cold joining process by which a strong interlock is formed between the rivet and the two or more layers of sheet material. Through the connection mode, the air-tightness, the water-tightness and the dynamic bearing capacity can be better.

Alternatively, the number of the brackets 24 may be one, and of course, the brackets 24 may be provided in plural. Alternatively, the plurality of brackets 24 may be distributed at equal intervals, or may be distributed at unequal intervals according to requirements.

With continued reference to fig. 2 and 3, in one possible embodiment, the beam body 21 has a plurality of connecting holes 21a extending from the front wall 211 to the rear wall 212.

A connecting hole 21a may be provided at the front end of the beam body 21, and the rocker beam 2 is connected to the front end of the vehicle body of the vehicle 1 by means of a connecting member that engages with the connecting hole 21a. Alternatively, the connecting pieces may be in the form of bolts and nuts, and may be riveted by FDS, which is a spin tapping and riveting process, and a cold forming process of tapping and riveting after thermally deforming the plate by high-speed rotation. Through the connection mode, the air-tightness, the water-tightness and the dynamic bearing capacity can be better.

It is to be understood that the attachment hole 21a may be provided at the rear end of the beam body 21, and the rocker beam 2 is attached to the front end of the vehicle body of the vehicle 1 by means of a connecting member that engages with the attachment hole 21a. The connection method is the same as that for connecting the threshold beam 2 to the front end of the body of the vehicle 1, and the detailed description is omitted.

Alternatively, the connecting holes 21a at the front end and the rear end of the beam body 21 may be provided in one or more. Optionally, two or more connecting holes 21a located at the front end and the rear end of the beam body 21 may be distributed at equal intervals, or may be distributed at unequal intervals according to design requirements.

In the present embodiment, the bottom wall 214 of the beam body 21 may be connected to the underbody of the vehicle 1 by FDS, connecting the rocker beam 2 to the bottom end of the vehicle body of the vehicle 1. Further, a joint paste may be added to the joint of the bottom wall 214 and the vehicle body floor to improve the joint strength, thereby improving the reliability of the vehicle 1. Alternatively, the connecting glue may be a structural glue.

Embodiments of the second aspect of the present application also provide a vehicle 1 including any one of the rocker beams 2 provided by the first aspect of the present application. The vehicle 1 provided by the application can better resist collision and improve the safety performance. Moreover, because the vehicle beam body 21 is integrally arranged, the production cost of the vehicle 1 is reduced, the weight is reduced, energy is saved, and the environmental protection performance is better.

In accordance with the embodiments of the present application as set forth above, these embodiments are not exhaustive or limit the embodiments to the precise embodiments of the application. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A threshold beam, comprising:

the beam body is provided with a wall part and a hollow cavity formed by enclosing the wall part, the wall part comprises a front wall, a rear wall, a top wall and a bottom wall, the front wall and the rear wall are oppositely arranged, and the top wall and the bottom wall are respectively connected with the front wall and the bottom wall and are oppositely arranged;

the supporting component is arranged in the hollow cavity and connected with the beam body, and the supporting component divides the hollow cavity into a plurality of sub-cavities;

wherein the strength of the front wall is less than the strength of the rear wall.

2. The rocker beam of claim 1, wherein the support assembly includes at least one first support wall between the front wall and the rear wall, the first support wall being connected to the top wall and the bottom wall, respectively, the front wall having a strength greater than the strength of the first support wall.

3. The rocker beam of claim 2, wherein the wall thickness of the front wall is less than the wall thickness of the rear wall and greater than the wall thickness of the first support wall.

4. The rocker beam of claim 2, wherein the top wall has a strength less than the bottom wall.

5. The rocker beam of claim 4, wherein the brace assembly further includes at least one second brace wall positioned between the top wall and the bottom wall and intersecting the first brace wall, the second brace wall having a strength less than a strength of the top wall.

6. The rocker beam of claim 5, wherein the wall thickness of the top wall is less than the wall thickness of the bottom wall and greater than the wall thickness of the second support wall.

7. The rocker beam defined in any one of claims 1-6, wherein the beam body and the support assembly are a unitary structure.

8. The rocker beam according to any one of claims 1-6, characterised in that it further comprises an evacuation space, which is formed by one of the top wall and the bottom wall being recessed towards the other, and a bracket, which is located in the evacuation space and is connected to the beam body.

9. The rocker beam defined in any one of claims 1-6, wherein the beam body has a plurality of attachment holes therethrough from the front wall to the rear wall.

10. A vehicle, characterized in that it comprises a rocker beam according to any of claims 1-9.

Images