Vehicle threshold beam and vehicle

Abstract

A vehicle doorsill beam and a vehicle belong to the field of automobile bodies. The vehicle doorsill beam comprises a doorsill beam main body, the interior of the doorsill beam main body is provided with a hollow channel, the hollow channel is internally provided with at least one reinforcing rib, and the at least one reinforcing rib is arranged along at least one of the height direction and the width direction of the hollow channel and divides the hollow channel into at least two cavities; the connecting supports are arranged on the surface of the doorsill beam body and used for fixing the doorsill beam body. The reinforcing ribs can improve the column collision resisting capacity of the vehicle doorsill beam to a certain degree, and the invasion amount of the inner side of a doorsill during collision is reduced. The cavities can crumple step by step when the vehicle is subjected to side collision, collision energy is absorbed, the collision energy is prevented from being transmitted to structures in the vehicle and behind the vehicle, and the side collision capacity of the vehicle is improved. On the basis, the vehicle doorsill beam can prevent the bottom plate of the vehicle body frame from affecting the battery pack due to deformation, so that the safety of the battery pack is ensured, and the risks of deformation, failure, fire and the like of a battery pack shell are avoided.

Description

Technical Field

[0001] The present application relates to the field of automobile bodies, and in particular to a vehicle sill beam and a vehicle. Background Art

[0002] Currently, most car bodies are integrated structures, with the rocker beam welded to the B-pillar, creating a strong connection. In the event of a collision, the rocker beam and B-pillar function as a single unit to withstand the impact, effectively preventing premature deformation in localized areas due to stress concentration and ensuring that collision energy is promptly transferred to the vehicle's internal structures.

[0003] However, although the integrated structure of the rocker beam and the B-pillar demonstrates excellent performance in terms of energy transfer, the structure still has defects or deficiencies in the following two aspects:

[0004] 1. Energy absorption limitations: This structure only transfers energy, but does not absorb collision energy. In a collision, if the vehicle body cannot effectively absorb and dissipate the enormous energy generated by the collision, even if the energy is successfully transferred to other parts of the vehicle, it may cause serious damage to the body structure and even threaten the safety of the occupants.

[0005] 2. Challenges to Power Battery Safety: Currently, the power battery packs of new energy vehicles are mounted on the sill beam. While this layout improves overall vehicle performance, it also presents potential safety hazards. In a collision, a severe impact to the sill beam could directly impact the power battery pack, causing deformation or even rupture of the battery housing. This could lead to serious consequences such as internal short circuits and electrolyte leakage, ultimately resulting in fire or explosion, posing a significant threat to occupants and the surrounding environment.

[0006] In summary, how to improve the structure of the door sill beam to overcome the above defects or deficiencies has become an important issue that needs to be urgently addressed in the current field of automobile body design. Utility Model Content

[0007] In view of this, an object of the present application is to provide a vehicle rocker beam and a vehicle to solve at least one of the above technical problems.

[0008] In a first aspect, the present application provides a vehicle sill beam, comprising: a sill beam body, a hollow channel provided inside, at least one reinforcing rib provided in the hollow channel, the at least one reinforcing rib being arranged along at least one of the height direction and the width direction of the hollow channel, and dividing the hollow channel into at least two cavities; and a plurality of connecting brackets arranged on the surface of the sill beam body for fixing the sill beam body.

[0009] In combination with the first aspect, in some optional embodiments, the reinforcement ribs include at least one first reinforcement rib and at least one second reinforcement rib, the length direction of the first reinforcement rib is along the length direction of the hollow channel, and the width direction of the first reinforcement rib is along the width direction of the hollow channel. When the number of first reinforcement ribs is multiple, the multiple first reinforcement ribs are arranged along the height direction of the hollow channel, the length direction of the second reinforcement rib is along the length direction of the hollow channel, and the width direction of the second reinforcement rib is along the height direction of the hollow channel. When the number of second reinforcement ribs is multiple, the multiple second reinforcement ribs are arranged along the width direction of the hollow channel.

[0010] In some optional embodiments, the projection of the first reinforcing rib in its length direction is parallel to the width direction of the hollow channel, or is inclined relative to the width direction of the hollow channel, or is bent relative to the width direction of the hollow channel; the projection of the second reinforcing rib in its length direction is parallel to the height direction of the hollow channel, or is inclined relative to the height direction of the hollow channel, or is bent relative to the height direction of the hollow channel.

[0011] In combination with the first aspect, in some optional embodiments, the sill beam body has a top surface, a bottom surface, an outer side surface, and an inner side surface. The top surface, the bottom surface, and the outer side surface are all planes, and the middle portion of the cross section of the inner side surface is an outwardly convex arc shape.

[0012] In some optional embodiments, the junction of the inner side surface and the top surface forms a long protrusion with a V-shaped cross section. Further, in some optional embodiments, the rear end of the long protrusion is provided with a bevel angle.

[0013] In some optional embodiments, positioning holes are provided on the inner side surface, and the positioning holes include a main positioning hole and a secondary positioning hole. The main positioning hole is a round hole, and the secondary positioning hole is a waist-shaped hole.

[0014] In combination with the first aspect, in some optional embodiments, the multiple connecting brackets include a first connecting bracket, a second connecting bracket, and a third connecting bracket, the first connecting bracket is connected to the top surface of the threshold beam body, the second connecting bracket is connected to the bottom surface of the threshold beam body, and the third connecting bracket is connected to the outer side surface of the threshold beam body.

[0015] In some optional embodiments, the cross-section of the first connecting bracket is L-shaped, the first connecting bracket includes a first rivet portion and a first welding portion connected as one body, the first rivet portion is attached to the top surface of the sill beam body and riveted to the top surface of the sill beam body, the first welding portion is perpendicular to the top surface of the sill beam body and parallel to the outer side surface of the sill beam body, and the first welding portion is used to be welded to other structures of the vehicle body frame; the cross-section of the second connecting bracket is L-shaped, the second connecting bracket includes a second rivet portion and a second welding portion connected as one body, the second rivet portion is attached to the bottom surface of the sill beam body and riveted to the bottom surface of the sill beam body, the second welding portion is perpendicular to the bottom surface of the sill beam body and parallel to the outer side surface of the sill beam body, and the second welding portion is used to be welded to other structures of the vehicle body frame; the third connecting bracket includes a third rivet portion and a third welding portion connected as one body, the third rivet portion is attached to the outer side surface of the sill beam body and riveted to the outer side surface of the sill beam body, the third welding portion extends rearward along the third rivet portion and protrudes from the rear end surface of the sill beam body, and the third welding portion is used to be welded to other structures of the vehicle body frame.

[0016] In a second aspect, the present application provides a vehicle, comprising a vehicle rocker beam according to any one of the embodiments of the first aspect, wherein the vehicle rocker beam is arranged in a cavity of a side panel inner panel or a rocker inner panel, and is welded to the side panel inner panel or the rocker inner panel through a plurality of connecting brackets.

[0017] Based on the above technical solution, the vehicle sill beam and vehicle provided in this application have a sill beam body welded to other structures of the vehicle body frame via multiple connecting brackets, which can increase the connection strength of the sill beam body. At least one reinforcing rib is provided within the sill beam body, which can, to a certain extent, improve the vehicle sill beam's ability to resist column impact and reduce the amount of intrusion from the inner side of the sill during a collision. The reinforcing rib divides the interior of the sill beam body into multiple cavities. When the vehicle is involved in a side impact, these cavities can gradually collapse, absorbing the collision energy and preventing it from being transferred to structures inside and behind the vehicle, thereby improving the vehicle's side impact resistance. Based on the above structure, the vehicle sill beam can prevent the deformation of the bottom plate of the vehicle body frame from affecting the battery pack, thereby ensuring the safety of the battery pack and avoiding the risks of battery pack shell deformation, failure, and fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1A schematic diagram of the three-dimensional structure of a vehicle door sill beam provided in an embodiment of the present application.

[0020] Figure 2 This is another schematic diagram of the three-dimensional structure of a vehicle door sill beam provided in an embodiment of the present application.

[0021] Figure 3 A schematic side view of a vehicle sill beam provided in an embodiment of the present application.

[0022] Figure 4 A schematic structural diagram of the connection between a vehicle sill beam and a sill inner panel provided in an embodiment of the present application.

[0023] Figure numerals: 100, vehicle sill beam; 10, sill beam body; 11, top surface; 12, bottom surface; 13, outer side surface; 14, inner side surface; 15, long protrusion; 151, bevel angle; 16, first reinforcing rib; 17, second reinforcing rib; 18, main positioning hole; 19, secondary positioning hole; 20, first connecting bracket; 21, first riveted portion; 22, first welding portion; 221, first notch; 30, second connecting bracket; 31, second riveted portion; 32, second welding portion; 321, second notch; 40, third connecting bracket; 41, third riveted portion; 42, third welding portion; 200, sill inner panel. DETAILED DESCRIPTION

[0024] Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present application, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the description of this application without inventive effort are intended to fall within the scope of protection of this application.

[0025] In the description of this application, unless otherwise specified or limited, the terms "connect," "dispose," and "install" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can mean that two components are internally connected. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] The terms "upper", "lower", "left", "right", "front", "back", "center", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when used. They are only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present application.

[0027] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order, unless expressly specified and limited otherwise.

[0028] The terms "comprises," "includes," "has," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of more limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0029] The term "plurality" means two or more (including two).

[0030] The term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0031] The terms "one embodiment," "as an example," "in one implementation," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example may be included in at least one embodiment or example of the present application. The schematic representations of such terms do not necessarily refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments. The embodiments and features within the embodiments of the present application may be combined in appropriate ways unless there is a conflict.

[0032] Figure 1 This is a schematic diagram of a three-dimensional structure of a vehicle door sill beam 100 provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the three-dimensional structure of a vehicle sill beam 100 provided in an embodiment of the present application from another perspective. Figure 3 A schematic side view of a vehicle rocker beam 100 provided in an embodiment of the present application.

[0033] like Figures 1 to 3 As shown, an embodiment of the present application provides a vehicle rocker beam 100. As a component of the vehicle body frame, the rocker beam 100 primarily serves to enhance the rigidity of the vehicle body frame, guide collision energy transfer, and absorb collision energy. The rocker beam 100 comprises a rocker beam body 10 and a plurality of connecting brackets. These connecting brackets include, but are not limited to, the illustrated first connecting bracket 20, the second connecting bracket 30, and the third connecting bracket 40. The following describes the various structural components of the rocker beam 100 in detail.

[0034] The sill beam body 10 is made of a profile having a hollow channel therein.

[0035] For example, the cross-section of the sill beam body 10 is approximately rectangular. The sill beam body 10 has a top surface 11, a bottom surface 12, an outer side surface 13, and an inner side surface 14, corresponding to the top, bottom, outer side, and inner side of the vehicle body, respectively. The top surface 11, bottom surface 12, and outer side surface 13 of the sill beam body 10 are all flat surfaces. The middle portion of the cross-section of the inner side surface 14 is an outwardly convex arc, which serves to increase the strength of the sill beam body 10. The junction between the top surface 11 and the inner side surface 14 forms a long, V-shaped protrusion 15 in cross section, which serves to increase the strength of the sill beam body 10.

[0036] In order to avoid the interference between the long protrusion 15 and other structures of the vehicle body frame, such as Figure 1 As shown, a chamfered corner 151 is provided at the rear end of the long protrusion 15 , and the chamfered corner 151 can be formed by chamfering along the length direction of the long protrusion 15 by laser cutting.

[0037] The hollow channel of the sill beam body 10 is equipped with at least one reinforcing rib, arranged along at least one of the height and width directions, to enhance the strength of the sill beam body 10. This application utilizes reinforcing ribs to enhance the structural strength of the sill beam body 10, thereby improving the vehicle sill beam 100's ability to withstand pillar impacts and reducing the amount of intrusion from the inner side of the sill during a collision, thereby enhancing protection for the power battery and reducing the risk of impact. These reinforcing ribs divide the hollow channel into multiple cavities. When the vehicle is involved in a side impact, these cavities collapse step by step to absorb the collision energy.

[0038] Exemplarily, the reinforcing ribs include two first reinforcing ribs 16 and two second reinforcing ribs 17 .

[0039] Two first reinforcing ribs 16 are arranged along the height direction of the hollow channel. The length direction of each first reinforcing rib 16 is consistent with the length direction of the hollow channel, and the width direction of the first reinforcing rib 16 is generally along the width direction of the hollow channel. Specifically, the projection of the first reinforcing rib 16 in its length direction can be parallel to the width direction of the hollow channel, or have a certain degree of inclination relative to the width direction of the hollow channel, or have a certain degree of curvature relative to the width direction of the hollow channel. The specific design is based on the shape of the top surface 11 and the bottom surface 12 of the sill beam body 10 and the difficulty of extrusion molding. Figures 1 to 3 An example is given in which the cross sections of the two first reinforcing ribs 16 are arranged parallel to the width direction of the hollow channel. This design facilitates extrusion molding of the two first reinforcing ribs 16 themselves and the surrounding structures.

[0040] Two second reinforcing ribs 17 are arranged along the width of the hollow channel. The length of each second reinforcing rib 17 is aligned with the length of the hollow channel, and the width of each second reinforcing rib 17 is generally aligned with the height of the hollow channel. Specifically, the projection of the second reinforcing rib 17 along its length can be parallel to the height of the hollow channel, or have a certain degree of inclination relative to the height of the hollow channel, or have a certain degree of curvature relative to the height of the hollow channel. The specific design is based on the shape of the outer side surface 13 and the inner side surface 14 of the sill beam body 10 and the difficulty of extrusion molding. Figures 1 to 3 An example is given, in which the cross-section of the second reinforcing rib 17 on the outside has a certain degree of inclination relative to the height direction of the hollow channel, and this design facilitates the extrusion molding of the second reinforcing rib 17 itself and the surrounding structure; the cross-section of the second reinforcing rib 17 on the inside has a certain degree of curvature relative to the height direction of the hollow channel according to the shape of the inner surface 14, and this design facilitates the extrusion molding of the second reinforcing rib 17 itself and the surrounding structure.

[0041] The phrase "the width direction of the reinforcing rib is generally along the width direction of the hollow channel" means that the overall direction of the cross-sectional profile of the reinforcing rib is generally along the width direction of the hollow channel, and does not mean that the overall direction of the cross-sectional profile of the reinforcing rib is completely consistent with the width direction of the hollow channel. The phrase "the width direction of the reinforcing rib is generally along the height direction of the hollow channel" means that the overall direction of the cross-sectional profile of the reinforcing rib is generally along the height direction of the hollow channel, and does not mean that the overall direction of the cross-sectional profile of the reinforcing rib is completely consistent with the height direction of the hollow channel.

[0042] In this embodiment, the reinforcing ribs include two first reinforcing ribs 16 and two second reinforcing ribs 17. The two first reinforcing ribs 16 and the two second reinforcing ribs 17 together divide the hollow channel into nine cavities. It is understandable that this application does not limit the number of first reinforcing ribs 16 and second reinforcing ribs 17, nor the number of cavities separated by them. For example, the number of first reinforcing ribs 16 and second reinforcing ribs 17 can be one, and they can together separate four cavities. The number of first reinforcing ribs 16 and second reinforcing ribs 17 can be three, and they can together separate sixteen cavities. As long as the structure can be strengthened and collision energy can be absorbed, the number of ribs 16 and second reinforcing ribs 17 can be sufficient.

[0043] The material of the sill beam body 10 can be aluminum alloy. During the production of the sill beam body 10, an aluminum extrusion process is first used to form a semi-finished workpiece. Secondary processing is then performed to cut the two end faces and bevel the corners 151 to complete the sill beam body 10. For example, the sill beam body 10 is machined from a block of 6082-T6 aluminum alloy and has dimensions of 495 mm in length, 104 mm in width, 119 mm in height, and a wall thickness of 2.5 mm. Both the first and second reinforcing ribs 16, 17 are 2.5 mm thick.

[0044] In order to position the semi-finished workpiece of the sill beam body 10 during secondary processing and cutting, a positioning hole is further provided on the sill beam body 10 .

[0045] For example, Figure 1 As shown, the positioning holes include a primary positioning hole 18 and a secondary positioning hole 19. Both the primary positioning hole 18 and the secondary positioning hole 19 are located on the lower plane of the inner side surface 14 of the sill beam body 10. The primary positioning hole 18 is a circular hole located near the rear end of the inner side surface 14, while the secondary positioning hole 19 is a waist-shaped hole located near the front end of the inner side surface 14. The diameter of the primary positioning hole 18 is 8.1 mm, and the dimensions of the secondary positioning hole 19 are 12 mm by 8.1 mm. During secondary processing, the secondary positioning hole 19 is used to initially position the semi-finished workpiece of the sill beam body 10, and then the primary positioning hole 18 is used to fix the position of the semi-finished workpiece of the sill beam body 10.

[0046] like Figures 1 to 3 As shown, a plurality of connecting brackets are connected to the sill beam body 10 , and these connecting brackets are used to fix the sill beam body 10 to achieve welding connection between the vehicle sill beam 100 and other structures of the vehicle body frame.

[0047] For example, the connecting brackets include a first connecting bracket 20, a second connecting bracket 30, and a third connecting bracket 40. The first connecting bracket 20 is connected to the front end of the top surface 11 of the sill beam body 10 by two rivets, the second connecting bracket 30 is connected to the middle portion of the bottom surface 12 of the sill beam body 10 by three rivets, and the third connecting bracket 40 is connected to the rear end of the outer side surface 13 of the sill beam body 10 by two rivets.

[0048] Each connecting bracket includes a riveted portion and a welded portion that are connected as one body. The riveted portion is used for riveting connection with the door sill beam body 10 , and the welded portion is used for welding connection with other structures of the vehicle body frame.

[0049] Illustratively, the first connecting bracket 20 includes a first rivet portion 21 and a first weld portion 22. The first connecting bracket 20 has an L-shaped cross-section. The first rivet portion 21 is attached to the top surface 11 of the sill beam body 10, while the first weld portion 22 is perpendicular to the top surface 11 of the sill beam body 10 and parallel to the outer side surface 13 of the sill beam body 10. A first notch 221 is provided in the non-welded portion of the first weld portion 22 to reduce the weight of the first connecting bracket 20.

[0050] The second connecting bracket 30 includes a second rivet portion 31 and a second weld portion 32. The second connecting bracket 30 has an L-shaped cross-section. The second rivet portion 31 is attached to the bottom surface 12 of the sill beam body 10, while the second weld portion 32 is perpendicular to the bottom surface 12 of the sill beam body 10 and parallel to the outer surface 13 of the sill beam body 10. A second notch 321 is provided in the non-welding portion of the second weld portion 32 to reduce the weight of the second connecting bracket 30.

[0051] The third connecting bracket 40 includes a third rivet portion 41 and a third weld portion 42. The third rivet portion 41 is attached to the outer side surface 13 of the sill beam body 10, and the third weld portion 42 extends along the third rivet portion 41 toward the rear of the sill beam body 10 and protrudes from the rear end surface of the sill beam body 10.

[0052] The first connecting bracket 20 , the second connecting bracket 30 , and the third connecting bracket 40 can all be made of metal plates through sheet metal processing. For example, the metal plates are made of DC01 and have a thickness of 1.2 mm.

[0053] Figure 4 This is a structural diagram of the connection between a vehicle rocker beam 100 and a rocker inner panel 200 provided in an embodiment of the present application.

[0054] When the vehicle rocker beam 100 is mounted on other structures of the vehicle body frame, the vehicle rocker beam 100 is welded and fixed in the cavity of the side inner panel or the rocker inner panel 200. For example, Figure 4As shown, the vehicle rocker beam 100 is disposed in the cavity of the rocker inner panel 200 , and the first connecting bracket 20 , the second connecting bracket 30 , and the third connecting bracket 40 are fixedly connected to the rocker inner panel 200 by spot welding.

[0055] An embodiment of the present application further provides a vehicle, which includes the above-mentioned vehicle rocker beam 100 .

[0056] When the vehicle is involved in a side collision, the vehicle sill beam 100 at the sill position of the vehicle body frame can not only transfer the collision energy along the sill beam body 10, but also absorb the collision energy through the step-by-step collapse of the internal cavity of the sill beam body 10, thereby avoiding the collision energy from being transferred to the structures inside and behind the vehicle.

[0057] In summary, the vehicle rocker beam and vehicle provided in the embodiments of the present application have a rocker beam body 10 that is welded to other structures of the vehicle body frame via multiple connecting brackets, which can increase the connection strength of the rocker beam body 10. At least one reinforcing rib is provided within the rocker beam body 10, which can, to a certain extent, improve the rocker beam's ability to resist pillar impacts and reduce the amount of intrusion from the inner side of the rocker during a collision. The reinforcing rib divides the interior of the rocker beam body 10 into multiple cavities. When the vehicle is involved in a side impact, these cavities can gradually collapse, absorbing the collision energy and preventing it from being transferred to structures inside and behind the vehicle, thereby improving the vehicle's side impact resistance. Based on the above structure, the vehicle rocker beam 100 can prevent the deformation of the bottom plate of the vehicle body frame from affecting the battery pack, thereby ensuring the safety of the battery pack and avoiding the risks of deformation, failure, and fire of the battery pack shell.

[0058] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the field can easily think of various changes or replacements within the technical scope disclosed in the present application, which should all be included in the scope of protection of the present application.

Claims

1. A vehicle rocker beam, characterized in that: include: A sill beam body, having a hollow channel therein, at least one reinforcing rib disposed in the hollow channel, the at least one reinforcing rib being arranged along at least one of a height direction and a width direction of the hollow channel and dividing the hollow channel into at least two cavities; and A plurality of connecting brackets are arranged on the surface of the threshold beam body and are used to fix the threshold beam body.

2. The vehicle rocker beam according to claim 1, characterized in that: The reinforcing ribs include at least one first reinforcing rib and at least one second reinforcing rib, The length direction of the first reinforcing rib is along the length direction of the hollow channel, and the width direction of the first reinforcing rib is along the width direction of the hollow channel. When there are multiple first reinforcing ribs, the multiple first reinforcing ribs are arranged along the height direction of the hollow channel. The length direction of the second reinforcing rib is along the length direction of the hollow channel, and the width direction of the second reinforcing rib is along the height direction of the hollow channel. When there are multiple second reinforcing ribs, multiple second reinforcing ribs are arranged along the width direction of the hollow channel.

3. The vehicle rocker beam according to claim 2, characterized in that: The projection of the first reinforcing rib in the length direction is parallel to the width direction of the hollow channel, or is inclined relative to the width direction of the hollow channel, or is curved relative to the width direction of the hollow channel; The projection of the second reinforcing rib in the length direction is parallel to the height direction of the hollow channel, or is inclined relative to the height direction of the hollow channel, or is curved relative to the height direction of the hollow channel.

4. The vehicle rocker beam according to claim 1, characterized in that The door sill beam body has a top surface, a bottom surface, an outer side surface, and an inner side surface, The top surface, the bottom surface and the outer surface are all planes, The middle portion of the cross section of the inner side surface is in an outwardly convex arc shape.

5. The vehicle rocker beam according to claim 4, characterized in that: A long protrusion with a V-shaped cross section is formed at the junction of the inner side surface and the top surface.

6. The vehicle rocker beam according to claim 5, characterized in that The rear end of the long protrusion is provided with a beveled corner.

7. The vehicle rocker beam according to claim 4, characterized in that Positioning holes are provided on the inner side surface, and the positioning holes include a main positioning hole and a secondary positioning hole. The main positioning hole is a round hole, and the secondary positioning hole is a waist-shaped hole.

8. The vehicle rocker beam according to claim 1, characterized in that The plurality of connecting brackets include a first connecting bracket, a second connecting bracket, and a third connecting bracket, The first connecting bracket is connected to the top surface of the door sill beam body, The second connecting bracket is connected to the bottom surface of the door sill beam body, The third connecting bracket is connected to the outer side surface of the door sill beam body.

9. The vehicle rocker beam according to claim 8, characterized in that The cross section of the first connecting bracket is L-shaped, and the first connecting bracket includes a first riveted portion and a first welded portion connected as one body. The first riveted portion is attached to the top surface of the sill beam body and riveted to the top surface of the sill beam body. The first welding portion is perpendicular to the top surface of the rocker beam body and parallel to the outer side surface of the rocker beam body, and the first welding portion is used for welding to other structures of the vehicle body frame; The cross section of the second connecting bracket is L-shaped, and the second connecting bracket includes a second riveted portion and a second welded portion connected as one body. The second riveted portion is attached to the bottom surface of the sill beam body and riveted to the bottom surface of the sill beam body. The second welding portion is perpendicular to the bottom surface of the rocker beam body and parallel to the outer side surface of the rocker beam body, and the second welding portion is used for welding to other structures of the vehicle body frame; The third connecting bracket includes a third riveted portion and a third welded portion connected as one body. The third riveting portion is attached to the outer side surface of the door sill beam body and riveted to the outer side surface of the door sill beam body. The third welding portion extends rearward along the third riveted portion and protrudes from the rear end surface of the rocker beam body. The third welding portion is used for welding connection with other structures of the vehicle body frame.

10. A vehicle, characterized in that: The vehicle rocker beam comprises the vehicle rocker beam according to any one of claims 1 to 9, wherein the vehicle rocker beam is arranged in a cavity of a side inner panel or a rocker inner panel, and is welded to the side inner panel or the rocker inner panel via the plurality of connecting brackets.

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