Threshold beam and vehicle having the same

Abstract

The utility model discloses a kind of door sill beam and vehicle with it, door sill beam includes: door sill outer plate and door sill inner plate, door sill outer plate is oppositely arranged with door sill inner plate, and door sill inner plate and door sill outer plate form door sill inner cavity between, door sill inner plate is formed with reinforcement in door sill inner cavity, the both ends of reinforcement along first direction are connected with door sill inner plate, and at least one first cavity is formed between reinforcement and door sill inner plate, reinforcement has multiple flanging mutually adjacent, wherein at least one flanging is connected with door sill outer plate.The door sill beam according to the utility model, first cavity and door sill inner cavity can enhance the overall structural strength of door sill beam, absorb the energy generated when door sill beam is impacted, so that door sill beam is better to bear and disperse force when being impacted by external force, improve the crash performance of vehicle, improve the overall safety of vehicle, better protect the safety of passenger and vehicle in collision accident, can reduce the weight of door sill beam, conducive to lightweight design.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a door sill beam and a vehicle having the same. Background Technology

[0002] With the upgrading of side impact regulations, the requirements for side pillars of new energy vehicles are becoming increasingly stringent. Some models have adopted local reinforcement inside the door sill beam to improve safety performance in order to meet the upgraded collision requirements. However, this has also led to problems such as the increased weight of the door sill beam. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a door sill beam that enhances the overall structural strength, better bears and disperses forces, improves vehicle collision performance, enhances overall vehicle safety, and reduces the weight of the door sill beam, thus facilitating lightweight vehicle design.

[0004] This utility model also proposes a vehicle that includes the aforementioned door sill beam.

[0005] According to an embodiment of the present invention, a threshold beam includes an outer threshold plate and an inner threshold plate. The outer threshold plate and the inner threshold plate are disposed opposite to each other, and an inner threshold cavity is formed between the inner threshold plate and the outer threshold plate. The inner threshold plate is formed with a reinforcing member located in the inner threshold cavity. Both ends of the reinforcing member along a first direction are connected to the inner threshold plate, and at least one first cavity is formed between the reinforcing member and the inner threshold plate. The reinforcing member has a plurality of adjacent folded edges, wherein at least one of the folded edges is connected to the outer threshold plate. The first direction is perpendicular to the arrangement direction of the outer threshold plate and the inner threshold plate.

[0006] According to an embodiment of the present invention, the sill beam includes an outer sill plate and an inner sill plate, with an inner sill cavity formed between the inner sill plate and the outer sill plate. A reinforcing member is formed within the inner sill cavity on the inner sill plate, and at least one first cavity is formed between the reinforcing member and the inner sill plate. The reinforcing member has multiple adjacent flanges, at least one of which is connected to the outer sill plate. The design of the first cavity and the inner sill cavity enhances the overall structural strength of the sill beam, absorbs the energy generated when the sill beam is impacted, and allows the sill beam to better withstand and disperse force when subjected to external impact, significantly improving the vehicle's collision performance and overall vehicle safety. This better protects the safety of passengers and the vehicle in collision accidents. Furthermore, the first cavity and the inner sill cavity can reduce the weight of the sill beam while ensuring its structural strength, which is beneficial for lightweight vehicle design.

[0007] In addition, the sill beam according to this utility model may also have the following additional technical features:

[0008] In some embodiments, the first cavity consists of two spaced-apart cavities arranged along the first direction, the two first cavities being a first sub-cavity and a second sub-cavity, respectively. Along the arrangement direction of the outer sill plate and the inner sill plate, the width of the first sub-cavity is smaller than the width of the second sub-cavity.

[0009] In some embodiments, the inner sill plate has a first flange on the side opposite to the outer sill plate, the first flange extending along the arrangement direction of the outer sill plate and the inner sill plate, and the first sub-cavity and the second sub-cavity are respectively located on both sides of the first flange along the first direction.

[0010] In some embodiments, the two ends of the reinforcing member along the first direction are a first end and a second end, respectively, and the fold located at the first end among the plurality of folds is a first fold. The end of the first fold that is away from the second end is simultaneously connected to the inner sill plate and the outer sill plate.

[0011] In some embodiments, the two ends of the reinforcing member along the first direction are a first end and a second end, respectively, and the fold located at the second end among the plurality of folds is a second fold. The end of the second fold that is away from the first end is simultaneously connected to the inner sill plate and the outer sill plate.

[0012] In some embodiments, the inner sill plate and the reinforcing member are integral parts.

[0013] The vehicle according to this utility model includes: a front floor panel; a front floor crossbeam, the front floor crossbeam being disposed on the front floor panel and extending along a second direction; and the aforementioned door sill beams, wherein there are two door sill beams, the two door sill beams being respectively disposed at both ends of the front floor panel along the second direction, the door sill beams being connected to both the front floor panel and the front floor crossbeam, wherein the second direction is the arrangement direction of the outer door sill plate and the inner door sill plate.

[0014] According to the embodiments of the present invention, the vehicle is provided with the aforementioned sill beam, which includes an outer sill plate and an inner sill plate. A sill cavity is formed between the inner sill plate and the outer sill plate. A reinforcing member is formed in the sill cavity within the inner sill plate. At least one first cavity is formed between the reinforcing member and the inner sill plate. The reinforcing member has multiple adjacent folded edges, at least one of which is connected to the outer sill plate. The design of the first cavity and the sill cavity can enhance the overall structural strength of the sill beam, absorb the energy generated when the sill beam is impacted, and enable the sill beam to better withstand and disperse the force when subjected to external impact, significantly improving the vehicle's collision performance and overall vehicle safety. This better protects the safety of passengers and the vehicle in collision accidents. Furthermore, the arrangement of the first cavity and the sill cavity can reduce the weight of the sill beam while ensuring its structural strength, which is beneficial for the lightweight design of the vehicle.

[0015] In some embodiments, the two ends of the outer sill plate along the first direction are a third end and a fourth end, the third end has a second flange, the second flange extends along the first direction, and the two ends of the front floor beam along the second direction are provided with front floor beam joints, the front floor beam joints are connected to the front floor beam, the inner sill plate and the second flange.

[0016] In some embodiments, a second cavity is defined between the front floor beam joint, the inner sill plate, and the second flange, with one end of the front floor beam joint facing away from the second flange located on the side of the inner sill plate facing away from the outer sill plate, for connection to the front floor beam.

[0017] In some embodiments, the vehicle further includes: two side panels, each of which is disposed on a side opposite to the other of the two sill beams, the side panels extending along the length of the sill beams, and a third cavity defining a space between the side panels and the sill panels.

[0018] In some embodiments, the two ends of the outer sill plate along the first direction are a third end and a fourth end, the fourth end has a third flange, and in the direction from the third end to the fourth end, the third flange is inclined toward the side away from the inner sill plate. The outer side panel along the first direction has a fourth flange at one end, and the fourth flange is partially attached to and connected to the third flange.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a perspective view of a vehicle according to an embodiment of the present utility model, wherein only one side sill beam is shown, and the side panel is not shown;

[0022] Figure 2 This is a partial cross-sectional view of a vehicle according to an embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional view of the threshold beam according to an embodiment of the present utility model;

[0024] Figure 4 This is a perspective view of the threshold beam according to an embodiment of the present utility model;

[0025] Figure 5 This is a perspective view of the sill inner plate and reinforcing member of the sill beam according to an embodiment of the present utility model;

[0026] Figure 6 This is a perspective view of the outer sill plate of the sill beam according to an embodiment of the present utility model;

[0027] Figure 7 This is a perspective view of the front floor crossbeam joint of a vehicle according to an embodiment of the present utility model;

[0028] Figure 8 This is a perspective view of the outer side panel of a vehicle according to an embodiment of the present utility model.

[0029] Figure label:

[0030] 100. Vehicles;

[0031] 10. Threshold beam;

[0032] 1. Inner sill plate; 11. First cavity; 111. First sub-cavity; 112. Second sub-cavity; 12. First section; 13. Second section; 14. Third section; 15. Fourth section; 16. First flange; 17. Reinforcing member; 171. First folded edge; 172. Second folded edge; 173. Third folded edge; 174. Fourth folded edge; 175. Fifth folded edge; 176. First end; 177. Second end;

[0033] 2. Sill outer panel; 21. Sill inner cavity; 22. Second flange; 23. Third flange; 24. Fifth section; 25. Sixth section; 26. Third end; 27. Fourth end;

[0034] 20. Front floor panel;

[0035] 30. Front floor crossbeam; 31. Front floor crossbeam connector; 311. First connecting section; 312. Spacing section; 313. Second connecting section; 32. Second cavity;

[0036] 40. Side panel; 41. Third cavity; 42. Fourth flange. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The threshold beam 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0042] like Figure 1As shown, the threshold beam 10 according to an embodiment of the present utility model includes an inner threshold plate 1 and an outer threshold plate 2.

[0043] Specifically, see the attached document. Figure 1 Appendix Figure 3 Appendix Figure 5 and attached Figure 6 As shown, both the inner sill plate 1 and the outer sill plate 2 are along a third direction (e.g., Figure 1 (As shown) Extending, the outer sill plate 2 and the inner sill plate 1 are disposed opposite to each other, and a sill cavity 21 is formed between the inner sill plate 1 and the outer sill plate 2. The inner sill plate 1 is formed with a reinforcing member 17 located in the sill cavity 21. The reinforcing member 17 extends along a first direction (e.g., Figure 3 Both ends of the reinforcing member 17 (as shown) are connected to the inner sill plate 1, and at least one first cavity 11 is formed between the reinforcing member 17 and the inner sill plate 1. The reinforcing member 17 has multiple adjacent folded edges, of which at least one folded edge is connected to the outer sill plate 2. The first direction is perpendicular to the arrangement direction of the outer sill plate 2 and the inner sill plate 1 (see attached figure). Figure 3 (As shown in the second direction), the sill beam 10 is interconnected with the inner sill plate 1 and the outer sill plate 2, the inner sill plate 1 and the reinforcing member 17, and the outer sill plate 2 and the reinforcing member 17, which can ensure the overall reliability of the sill beam 10.

[0044] Understandably, the design of the first cavity 11 and the sill inner cavity 21 can enhance the overall structural strength of the sill beam 10, absorb the energy generated by the sill beam 10 when it is impacted, and enable the sill beam 10 to better withstand and disperse the force when it is subjected to external impact, significantly improving the collision performance of the vehicle 100, improving the overall safety of the vehicle 100, and better protecting the safety of passengers and the vehicle 100 in collision accidents. Furthermore, the arrangement of the first cavity 11 and the sill inner cavity 21 can also reduce the weight of the sill beam 10 while ensuring the structural strength of the sill beam 10, which is conducive to the lightweight design of the vehicle 100, improving fuel efficiency or extending the driving range of new energy vehicles.

[0045] It should be noted that, as Figure 4 As shown, both the first cavity 11 and the sill inner cavity 21 are along the length of the sill beam 10 (see attached diagram). Figure 4 The third-party extension shown can strengthen the overall structure of the sill beam 10, rather than strengthening a local part of the sill beam 10. This can meet the requirements of the side column hitting any position and further improve the safety of the sill beam 10.

[0046] It is understandable that the number of first cavities 11 formed between the reinforcing member 17 and the inner sill plate 1 can be one, two, or three, and the number of the multiple folds of the reinforcing member 17 that are connected to the outer sill plate 2 can be one, two, or three.

[0047] It should be noted that the outer sill plate 2 and the inner sill plate 1 are separate components, allowing them to be manufactured independently. This reduces the manufacturing difficulty and complexity of the outer sill plate 2 and the inner sill plate 1, enabling them to be processed, tested, and quality controlled independently. This improves the overall production efficiency and product quality of the sill beam 10, reduces its manufacturing cost, and facilitates its repair and replacement. Furthermore, the outer sill plate 2 and the inner sill plate 1 are aligned along the left-right direction of the vehicle 100 (e.g., ...). Figure 1 The arrangement (as shown in the second direction) facilitates the assembly of the outer sill plate 2 and the inner sill plate 1, and allows the outer sill plate 2 to transfer the impact force to the inner sill plate 1.

[0048] Preferably, both the inner sill plate 1 and the outer sill plate 2 are made of ultra-high strength roll-formed steel, manufactured using advanced rolling technology and mold design. Through special cooling and heat treatment processes, the strength and toughness of the inner sill plate 1 and the outer sill plate 2 can be improved, enabling them to withstand greater loads and impacts, improve corrosion resistance and fatigue performance, and provide better durability and safety. Furthermore, this process can enhance the integration effect of the inner sill plate 1 and the outer sill plate 2, thereby increasing the integration degree of the sill beam 10.

[0049] According to an embodiment of the present invention, the sill beam 10 includes an outer sill plate 2 and an inner sill plate 1. An inner sill cavity 21 is formed between the inner sill plate 1 and the outer sill plate 2. The inner sill plate 1 is formed with a reinforcing member 17 located in the inner sill cavity 21. At least one first cavity 11 is formed between the reinforcing member 17 and the inner sill plate 1. The reinforcing member 17 has multiple adjacent folded edges, of which at least one folded edge is connected to the outer sill plate 2. The design of the first cavity 11 and the inner sill cavity 21 can enhance the overall structural strength of the sill beam 10, absorb the energy generated by the sill beam 10 when it is impacted, and enable the sill beam 10 to better withstand and disperse the force when it is impacted by external force, significantly improve the collision performance of the vehicle 100, improve the overall safety of the vehicle 100, and better protect the safety of passengers and the vehicle 100 in collision accidents. Furthermore, the arrangement of the first cavity 11 and the inner sill cavity 21 can also reduce the weight of the sill beam 10 while ensuring the structural strength of the sill beam 10, which is beneficial to the lightweight design of the vehicle 100.

[0050] In some embodiments of this utility model, reference is made to the appendix. Figure 2 and attached Figure 3As shown, there are two first cavities 11 arranged along the first direction and spaced apart. The two first cavities 11 are respectively a first sub-cavity 111 and a second sub-cavity 112. The first sub-cavity 111 is located on the upper side of the second sub-cavity 112 and is spaced apart from the second sub-cavity 112. The design of the first sub-cavity 111 and the second sub-cavity 112 can enhance the structural strength of the inner sill plate 1 and absorb the energy generated when the inner sill plate 1 is impacted, so that the sill beam 10 can better withstand and disperse the force when it is impacted by external force, thereby improving the collision safety performance of the vehicle 100. In addition, the arrangement of the first sub-cavity 111 and the second sub-cavity 112 can reduce the weight of the sill beam 10 while maintaining the structural strength of the inner sill plate 1, which is beneficial to the lightweighting of the sill beam 10.

[0051] Further, see Appendix Figure 3 As shown, along the arrangement direction of the outer sill plate 2 and the inner sill plate 1, the width of the first sub-cavity 111 is smaller than the width of the second sub-cavity 112. In the arrangement direction of the outer sill plate 2 and the inner sill plate 1, the first sub-cavity 111 is opposite to the front floor beam 30. The relatively smaller first sub-cavity 111 can provide better support and reinforcement. The second sub-cavity 112 is opposite to the battery area and can provide battery pack installation function, providing better support in the second direction, providing a larger energy absorption space, and better protecting the side impact safety performance of the battery pack.

[0052] In a further embodiment of this utility model, reference is made to the appendix. Figure 3 As shown, the ends of the first sub-cavity 111 and the second sub-cavity 112 that are away from the outer sill plate 2 are flush. It can be understood that, along the second direction, the part of the inner sill plate 1 that defines the first sub-cavity 111 and the part of the inner sill plate 1 that defines the second sub-cavity 112 are located on the same plane, which makes the shape and structure of the inner sill plate 1 relatively simple, thereby reducing the manufacturing difficulty of the inner sill plate 1.

[0053] It is understandable that the end of the first sub-cavity 111 facing the outer sill plate 2 is located on the side of the second sub-cavity 112 facing the outer sill plate 2 away from the outer sill plate 2, such as... Figure 3 As shown, in a cross-section perpendicular to a third direction, the outer sill plate 2 includes a fifth segment 24 and a sixth segment 25 arranged and connected in a first direction. The fifth segment 24 extends along a second direction, and the sixth segment 25 is connected to the end of the fifth segment 24 away from the inner sill plate 1. The sixth segment 25 also extends along the first direction. The end of the first sub-cavity 111 facing the outer sill plate 2 is connected to the end of the fifth segment 24 facing the inner sill plate 1, and the end of the second sub-cavity 112 facing the outer sill plate 2 is connected to the sixth segment 25. This design ensures multiple connections between the inner sill plate 1 and the outer sill plate 2, improving the reliability of the connection between the inner sill plate 1 and the outer sill plate 2.

[0054] In a further embodiment of this utility model, reference is made to the appendix. Figure 2 As shown, the inner sill plate 1 has a first flange 16 on the side opposite to the outer sill plate 2. The first flange 16 extends along the arrangement direction of the outer sill plate 2 and the inner sill plate 1. The first sub-cavity 111 and the second sub-cavity 112 are respectively located on both sides of the first flange 16 along the first direction. This can change the connection between the front floor panel and the sill beam in the left and right directions in the prior art to a spot welding lap joint between the front floor panel 20 and the first flange 16 in the first direction. This can achieve an expansion in width, which is beneficial for matching different vehicle width requirements, improving the compatibility of the sill beam 10, and without adding additional process equipment or production line equipment modification, reducing the assembly difficulty of the sill beam 10.

[0055] In some embodiments of this utility model, reference is made to the appendix. Figure 2 and attached Figure 3 As shown, the two ends of the reinforcing member 17 along the first direction are the first end 176 and the second end 177, respectively. Among the multiple folds, the fold located at the first end 176 is the first fold 171. The first fold 171 extends along the first direction. The end of the first fold 171 opposite to the second end 177 is connected to both the inner sill plate 1 and the outer sill plate 2. It can be understood that on the cross section perpendicular to the length direction of the sill beam 10, the connection point between the first fold 171 and the inner sill plate 1, the connection point between the first fold 171 and the outer sill plate 2, and the connection point between the inner sill plate 1 and the outer sill plate 2 are all the same point e. The connection point e is connected by laser welding, which can fix the reinforcing member 17, the inner sill plate 1, and the outer sill plate 2 at the same point, thereby reducing the connection difficulty of the reinforcing member 17, the inner sill plate 1, and the outer sill plate 2 and improving the assembly efficiency of the sill beam 10.

[0056] In some embodiments of this utility model, reference is made to the appendix. Figure 2 and attached Figure 3 As shown, the two ends of the reinforcing member 17 along the first direction are the first end 176 and the second end 177, respectively. Among the multiple folds, the fold located at the second end 177 is the second fold 172. The second fold 172 extends along the first direction. The end of the second fold 172 that is away from the first end 176 is connected to both the inner sill plate 1 and the outer sill plate 2. It can be understood that on the cross-section perpendicular to the length direction of the sill beam 10, the connection point between the second fold 172 and the inner sill plate 1 is located on the connection line between the second fold 172 and the outer sill plate 2. The intersection of the second fold 172, the inner sill plate 1, and the outer sill plate 2 is f. The connection point f is connected by laser welding, which can fix the reinforcing member 17, the inner sill plate 1, and the outer sill plate 2 at the same point, thereby reducing the connection difficulty of the reinforcing member 17, the inner sill plate 1, and the outer sill plate 2 and improving the assembly efficiency of the sill beam 10.

[0057] Further, see Appendix Figure 3As shown, the multiple folds also include a third fold 173, a fourth fold 174, and a fifth fold 175. The first fold 171, the third fold 173, the fourth fold 174, the fifth fold 175, and the second fold 172 are arranged and connected in a first direction. In a cross-section perpendicular to the third direction, the first fold 171, the second fold 172, and the fourth fold 174 extend along the first direction, while the third fold 173 and the fifth fold 175 extend along the second direction.

[0058] Furthermore, see the attached document. Figure 3 As shown, in a cross-section perpendicular to a third direction, the inner sill plate 1 includes a first segment 12, a second segment 13, a third segment 14, and a fourth segment 15. The first segment 12, the second segment 13, the reinforcing member 17, the third segment 14, and the fourth segment 15 are connected in sequence. The first segment 12 extends along a first direction, and the second segment 13 and the fourth segment 15 extend along a second direction. In the top-to-bottom direction, the third segment 14 is inclined toward the direction close to the first segment 12. The reinforcing member 17 is located on the side of the first segment 12 facing the outer sill plate 2.

[0059] It is understandable that, such as Figure 3 As shown, the first segment 12, the second segment 13, the first fold 171, the third fold 173, the fourth fold 174, the fifth fold 175, the second fold 172, the third segment 14, and the fourth segment 15 are connected in sequence. The part of the first segment 12 near the second segment 13, the second segment 13, the first fold 171, and the third fold 173 together define the first sub-cavity 111. The first sub-cavity 111 is used for support and force transmission to the cavity of the front floor beam 30, improving the side impact protection and rollover resistance. The part of the first segment 12 away from the second segment 13, the fifth fold 175, the second fold 172, the third segment 14, and the fourth segment 15 together define the second sub-cavity 112. The second sub-cavity 112 has a stronger lateral support effect, and the energy absorption and dispersion path of the outer sill plate 2 is better than that of the upper part, which can increase the side impact protection of the battery area. The inner cavity 21 of the sill is used for energy absorption, dispersing and supplementing the side impact protection of the occupants and enhancing the side pillar impact battery protection function.

[0060] Preferably, the second segment 13 slopes downward in the direction from the outside to the inside, so as to better overlap with the front floor beam 30.

[0061] It should be noted that, as Figure 3 As shown, there is a 3-5mm safety gap between the fourth fold 174 and the first segment 12. The safety gap connects the first sub-cavity 111 and the second sub-cavity 112, and can provide a certain energy absorption space.

[0062] In some embodiments of this utility model, reference is made to the appendix. Figure 3 and attached Figure 5As shown, the inner sill plate 1 and the reinforcing member 17 are integrated. It is understandable that some existing technologies improve safety performance by locally reinforcing the sill beam, typically using more than two supplementary components. This results in poor integration of the sill beam, and the size and weight of these supplementary components are increasing to meet collision upgrade requirements, leading to a heavier sill beam and hindering vehicle lightweighting. This invention, by integrating the inner sill plate 1 and the reinforcing member 17, improves the structural strength and safety performance of the sill beam 10 while enhancing its integration. This reduces the number of components in the sill beam 10, simplifying the assembly process, reducing assembly difficulty, and increasing assembly efficiency.

[0063] This utility model also proposes a vehicle 100 having the sill beam 10 of the above embodiments.

[0064] like Figure 1 As shown, the vehicle 100 according to an embodiment of the present invention includes a front floor panel 20, a front floor crossbeam 30, and the aforementioned door sill beam 10.

[0065] Specifically, see the attached document. Figure 1 As shown, the front floor panel 20 extends horizontally. As an important component of the vehicle's bottom structure, the front floor panel 20 bears the weight and load of the vehicle body and can evenly distribute the weight of the vehicle body and the load during driving to other parts of the vehicle body, ensuring the stability and safety of the vehicle 100. The front floor crossbeam 30 is located above the front floor panel 20 and extends in the second direction. The front floor crossbeam 30 is welded to the front floor panel 20 to connect the load-bearing structures on both sides of the vehicle body and can bear the weight of the vehicle body and the load brought by components such as the engine.

[0066] Furthermore, there are two sill beams 10, which are respectively located at both ends of the front floor panel 20 along the second direction. The sill beams 10 are connected to both the front floor panel 20 and the front floor crossbeam 30. They can absorb and disperse the impact force when the vehicle 100 is involved in a side collision, significantly reducing the risk of injury to passengers from the side collision and effectively protecting the safety of passengers inside the vehicle. The second direction is the arrangement direction of the outer sill plate 2 and the inner sill plate 1.

[0067] According to the embodiment of the present invention, the vehicle 100 is provided with the aforementioned sill beam 10. The sill beam 10 includes an outer sill plate 2 and an inner sill plate 1, with an inner sill cavity 21 formed between the inner sill plate 1 and the outer sill plate 2. The inner sill plate 1 is formed with a reinforcing member 17 located in the inner sill cavity 21, and at least one first cavity 11 is formed between the reinforcing member 17 and the inner sill plate 1. The reinforcing member 17 has multiple adjacent folded edges, at least one of which is connected to the outer sill plate 2. The design of the first cavity 11 and the inner sill cavity 21 can enhance the overall structural strength of the sill beam 10, absorb the energy generated by the sill beam 10 when it is impacted, and enable the sill beam 10 to better withstand and disperse the force when it is impacted by external forces, significantly improving the collision performance of the vehicle 100, enhancing the overall safety of the vehicle 100, and better protecting the safety of passengers and the vehicle 100 in collision accidents. Furthermore, the arrangement of the first cavity 11 and the inner sill cavity 21 can also reduce the weight of the sill beam 10 while ensuring its structural strength, which is beneficial to the lightweight design of the vehicle 100.

[0068] In some embodiments of this utility model, reference is made to the appendix. Figure 1 As shown, there are multiple front floor crossbeams 30 spaced apart along the third direction. Both ends of the multiple front floor crossbeams 30 along the second direction are connected to two door sill beams 10 respectively. The arrangement of multiple front floor crossbeams 30 can increase the support points of the vehicle body bottom structure, improve the overall rigidity and strength of the vehicle body, help improve the handling and driving stability of the vehicle 100, and more effectively absorb and disperse impact forces to protect the safety of passengers inside the vehicle.

[0069] In a specific example, see Appendix Figure 1 As shown, there are two front floor beams 30, which are spaced apart along a third direction. Both ends of the two front floor beams 30 along the second direction are connected to two door sill beams 10 respectively.

[0070] In a further embodiment of this utility model, reference is made to the appendix. Figure 2As shown, the outer sill plate 2 has a third end 26 and a fourth end 27 at its two ends along the first direction. The third end 26 has a second flange 22, which extends along the first direction. The front floor beam 30 has front floor beam joints 31 at both ends along the second direction. The front floor beam joints 31 are connected to the front floor beam 30, the inner sill plate 1, and the second flange 22. The front floor beam joints 31 can play a supporting and connecting role, ensuring that the front floor beam 30, the inner sill plate 1, and the outer sill plate 2 can be stably connected together to form a whole, thereby supporting the weight of the entire vehicle 100 and transmitting the force and torque from various parts of the vehicle body, effectively dispersing the collision energy and reducing the damage of the collision force to the passengers and the vehicle 100. The connection between the front floor beam joints 31 and the second flange 22 can improve the anti-rollover performance to a certain extent.

[0071] In a further embodiment of this utility model, reference is made to the appendix. Figure 2 As shown, a second cavity 32 is defined between the front floor beam joint 31, the inner sill plate 1, and the second flange 22. The end of the front floor beam joint 31 facing away from the second flange 22 is located on the side of the inner sill plate 1 facing away from the outer sill plate 2, so as to connect with the front floor beam 30. It can be understood that part of the front floor beam joint 31 is connected to the inner sill plate 1. In the second direction, the part of the front floor beam joint 31 located on the side of the inner sill plate 1 facing away from the outer sill plate 2 is connected to the front floor beam 30. This can save one welding edge, reduce the number of layers at the connection between the front floor beam joint 31 and the inner sill plate 1, and between the front floor beam joint 31 and the front floor beam 30, and avoid the connection from being inconsistent due to too many layers. This can reduce the connection difficulty between the front floor beam joint 31 and the inner sill plate 1, and between the front floor beam joint 31 and the front floor beam 30.

[0072] In a specific example, see Appendix Figure 2 and attached Figure 7 As shown, the front floor beam joint 31 includes a first connecting section 311, a spacer section 312, and a second connecting section 313 arranged sequentially and connected in a second direction. The first connecting section 311 extends along a first direction. The first connecting section 311, the second flange 22, and the side panel 40 are stacked and connected. The second connecting section 313 extends along a second direction and is connected to both the inner sill plate 1 and the front floor beam 30. The two ends of the spacer section 312 are respectively connected to the lower end of the first connecting section 311 and the outer end of the second connecting section 313. In the direction from the third end 26 to the fourth end 27, the spacer section 312 is inclined towards the direction closer to the second connecting section 313. Figure 2As shown, the second cavity 32 is defined between the interval segment 312, the second flange 22 and the second segment 13. On the cross section perpendicular to the third direction, the cross section of the second cavity 32 is triangular. Triangles have stability and can play a supporting role, ensuring the connection between the front floor beam joint 31, the outer sill plate 2 and the inner sill plate 1, and increasing the inner anti-rotation capacity.

[0073] In some embodiments of this utility model, reference is made to the appendix. Figure 2 and attached Figure 8 As shown, the vehicle 100 also includes two side outer panels 40, which are respectively located on the opposite sides of the two sill beams 10. The side outer panels 40 extend along the length of the sill beams 10. The side outer panels 40 are key structures of the left and right side walls of the vehicle 100, used to support the fixing of the windshield glass and the installation of the side doors. They are side panel components connecting the front and rear parts of the vehicle body. When the vehicle 100 is involved in a side impact, the side outer panels 40 have greater bending and torsional rigidity and strength, which can effectively absorb the impact and protect the vehicle body frame from serious damage, thereby ensuring the safety of passengers.

[0074] Further, see Appendix Figure 2 As shown, a third cavity 41 is defined between the side panel 40 and the sill panel 2, which can enhance the overall structural strength of the vehicle 100, absorb the energy generated by the side panel 40 and the sill beam 10 when impacted, and enable it to better withstand and disperse the force when subjected to external impact, significantly improve the collision performance of the vehicle 100, improve the overall safety of the vehicle 100, and better protect the safety of passengers and the vehicle 100 in collision accidents.

[0075] In a further embodiment of this utility model, reference is made to the appendix. Figure 2 As shown, the outer sill plate 2 has a third end 26 and a fourth end 27 at its two ends along the first direction. The fourth end 27 has a third flange 23. In the direction from the third end 26 to the fourth end 27, the third flange 23 is inclined toward the side away from the inner sill plate 1. The side panel 40 has a fourth flange 42 at one end along the first direction. The fourth flange 42 is partially fitted and connected to the third flange 23, which facilitates the connection between the fourth flange 42 and the third flange 23 and ensures that a third cavity 41 can be defined between the side panel 40 and the outer sill plate 2. Preferably, as shown... Figure 2 As shown, on the cross section perpendicular to the third direction, the angle between the line containing the fourth flange 42 and the horizontal direction is 55°.

[0076] In a specific example, such as Figure 2As shown, the connection point between the third flange 23 and the fourth flange 42 is a; the connection point between the second flange 22, the first connecting section 311 and the upper end of the side panel 40 is b; the connection point between the second connecting section 313 and the front floor beam 30 is c; and the connection point between the first flange 16 and the front floor panel 20 is d. Connection points a, b, c, and d are all connected by spot welding. The intersection of the fifth section 24 and the second flange 22, the intersection of the second section 13 and the first folded edge 171, and the connection point between the outer sill plate 2 and the inner sill plate 1 are all e; the intersection of the second folded edge 172 and the third section 14, and the connection point between the outer sill plate 2 and the inner sill plate 1 are all f. Connection points e and f are all connected by laser welding. The connection point between the second connecting section 313 and the second section 13 is g. Connection point g is connected by plug welding, thus different welding methods are selected according to the specific location.

[0077] The other components and operations of the threshold beam 10 and the vehicle 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A door sill beam, characterized in that, include: The sill has an outer sill plate and an inner sill plate, the outer sill plate and the inner sill plate being disposed opposite each other, and forming a sill cavity between the inner sill plate and the outer sill plate. The inner sill plate is formed with a reinforcing member located in the sill cavity. Both ends of the reinforcing member along a first direction are connected to the inner sill plate, and at least one first cavity is formed between the reinforcing member and the inner sill plate. The reinforcing member has a plurality of adjacent folded edges, of which at least one folded edge is connected to the outer sill plate. The first direction is perpendicular to the arrangement direction of the outer sill plate and the inner sill plate.

2. The sill beam according to claim 1, characterized in that, The first cavity consists of two cavities arranged and spaced apart along the first direction. The two first cavities are respectively a first sub-cavity and a second sub-cavity. Along the arrangement direction of the outer sill plate and the inner sill plate, the width of the first sub-cavity is smaller than the width of the second sub-cavity.

3. The sill beam according to claim 2, characterized in that, The inner sill plate has a first flange on the side opposite to the outer sill plate. The first flange extends along the arrangement direction of the outer sill plate and the inner sill plate. The first sub-cavity and the second sub-cavity are respectively located on both sides of the first flange along the first direction.

4. The sill beam according to claim 1, characterized in that, The two ends of the reinforcing member along the first direction are the first end and the second end, respectively. Among the plurality of folded edges, the folded edge located at the first end is the first folded edge. The end of the first folded edge that is away from the second end is connected to both the inner sill plate and the outer sill plate.

5. The sill beam according to claim 1, characterized in that, The two ends of the reinforcing member along the first direction are the first end and the second end, respectively. Among the plurality of folded edges, the folded edge located at the second end is the second folded edge. The end of the second folded edge that is away from the first end is connected to both the inner sill plate and the outer sill plate.

6. The sill beam according to claim 1, characterized in that, The inner sill plate and the reinforcing member are an integral part.

7. A vehicle, characterized in that, include: Front floor panel; Front floor beam, the front floor beam being disposed on the front floor panel and extending along the second direction ； According to any one of claims 1-6, there are two threshold beams, each of which is located at one end of the front floor panel along the second direction. The threshold beams are connected to both the front floor panel and the front floor crossbeam, wherein the second direction is the arrangement direction of the outer threshold panel and the inner threshold panel.

8. The vehicle according to claim 7, characterized in that, The outer sill plate has a third end and a fourth end at its two ends along the first direction. The third end has a second flange that extends along the first direction. The front floor beam has a front floor beam joint at both ends along the second direction. The front floor beam joint is connected to the front floor beam, the inner sill plate, and the second flange.

9. The vehicle according to claim 8, characterized in that, A second cavity is defined between the front floor beam joint, the inner sill plate, and the second flange. The end of the front floor beam joint opposite to the second flange is located on the side of the inner sill plate opposite to the outer sill plate, so as to connect with the front floor beam.

10. The vehicle according to claim 7, characterized in that, Also includes: The side panel consists of two side panels, which are respectively located on the opposite side of the two sill beams. The side panels extend along the length of the sill beams, and a third cavity is defined between the side panels and the sill panels.

11. The vehicle according to claim 10, characterized in that, The outer sill plate has a third end and a fourth end at its two ends along the first direction. The fourth end has a third flange. In the direction from the third end to the fourth end, the third flange is inclined toward the side away from the inner sill plate. The outer side panel has a fourth flange at one end along the first direction. The fourth flange is partially attached to and connected to the third flange.

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