Threshold beam structure and vehicle equipped with the same

Abstract

The utility model relates to a kind of door sill beam structure and vehicle equipped with the structure, the door sill beam structure includes: front row seat front crossbeam and front row seat rear crossbeam;And arc support, it is set in the door sill beam, the arc portion of the arc support is towards vehicle outside, the first end of the arc support corresponds with the end of front row seat front crossbeam, the second end of the arc support corresponds with front row seat rear crossbeam, arc portion is between the first end and the second end, to transmit the impact force of cylindrical collision to front row seat front crossbeam and front row seat rear crossbeam.The door sill beam structure of the utility model can make the impact force of cylindrical collision along the arc trajectory of arc support be transmitted to front row seat front crossbeam and front row seat rear crossbeam, to avoid the deformation of too large caused by the concentration of impact force in collision site, and then increase the survival space of front row seat driver and passenger.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, and more particularly to a door sill beam structure and a vehicle equipped with the structure. Background Technology

[0002] As a crucial component of a vehicle's body structure, the sill beam plays a vital role in frontal and side impacts. Traditional sill beam designs primarily focus on their resistance to bending and crushing in frontal and side collisions. However, in cylindrical impacts, traditional sill beam structures often fail to effectively absorb and disperse collision energy, leading to severe deformation of the passenger compartment and compressing the occupant's survival space, thereby increasing the risk of injury.

[0003] Therefore, there is a need for further improvement of the existing door sill beams.

[0004] The information disclosed in the background section of this utility model is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a door sill beam structure and a vehicle equipped with the structure, which allows the impact force of a cylindrical collision to be transmitted along the arc-shaped trajectory of the arc-shaped bracket to the front crossbeam and the rear crossbeam of the front seat, so as to avoid the impact force being concentrated at the collision point and causing excessive deformation, thereby increasing the survival space of the driver and passengers in the front seat.

[0006] According to a first aspect of the present invention, a sill beam structure is provided, comprising: a front crossbeam of the front seat and a rear crossbeam of the front seat; and an arc-shaped bracket disposed within the sill beam, wherein the arc-shaped portion of the arc-shaped bracket faces outward of the vehicle, a first end of the arc-shaped bracket corresponds to an end of the front crossbeam of the front seat, and a second end of the arc-shaped bracket corresponds to the rear crossbeam of the front seat, with the arc-shaped portion located between the first end and the second end, so as to transmit the impact force of a cylindrical collision to the front crossbeam of the front seat and the rear crossbeam of the front seat.

[0007] Preferably, the end of the front crossbeam of the front seat has an arc on the side facing the rear crossbeam of the front seat, and the end of the rear crossbeam of the front seat has an arc on the side facing the front crossbeam of the front seat, so as to form a smooth arched structure with the arc-shaped bracket.

[0008] Preferably, the inner side of the arc portion forms a first space; the first end portion includes: a front connecting plate extending in the front-back direction; and a front flanging connected to the front edge of the front connecting plate, the front flanging, the front connecting plate and a part of the arc portion form a second space; the second end portion includes: a rear connecting plate extending in the front-back direction; and a rear flanging connected to the rear edge of the rear connecting plate, the rear flanging, the rear connecting plate and a part of the arc portion form a third space; wherein, the front flanging, the front connecting plate, the arc portion, the rear connecting plate and the rear flanging are integrally formed; the sill beam structure further includes: a front reinforcing member disposed in the second space; a rear reinforcing member disposed in the third space; and a middle reinforcing member disposed in the first space.

[0009] Preferably, the front reinforcing member, the rear reinforcing member and the middle reinforcing member have a predetermined width in the left-right direction.

[0010] Preferably, the inner side of the arc portion forms a first space; the first end portion includes: a front connecting plate extending in the front-back direction and connected to the front edge of the arc portion, the front connecting plate and the arc portion are integrally formed; and a front bracket connected to the outer side of the front connecting plate; the second end portion includes: a rear connecting plate extending in the front-back direction and connected to the rear edge of the arc portion, the rear connecting plate and the arc portion are integrally formed; and a rear bracket connected to the outer side of the rear connecting plate; the sill beam structure further includes: a middle reinforcing member disposed in the first space.

[0011] Preferably, the middle reinforcing member has a predetermined width in the left-right direction.

[0012] Preferably, the cross-section of the arc portion is in an "M" shape.

[0013] Preferably, the cross-section of the arc bracket is in an "eye" shape; the first end portion includes: a front connecting plate extending in the front-back direction and connected to the front edge of the arc portion, the front connecting plate and the arc portion are integrally formed; and a front bracket connected to the outer side of the front connecting plate; the second end portion includes: a rear connecting plate extending in the front-back direction and connected to the rear edge of the arc portion, the rear connecting plate and the arc portion are integrally formed; and a rear bracket connected to the outer side of the rear connecting plate.

[0014] Preferably, the sill beam structure further includes: a front row seat rear crossbeam reinforcing member disposed on the upper surface of the end portion of the front row seat rear crossbeam.

[0015] Preferably, the arc bracket has a predetermined height in the vertical direction.

[0016] According to a second aspect of the present invention, a vehicle is provided, equipped with a sill beam structure as described in the first aspect.

[0017] The sill beam structure of this utility model allows the impact force of a cylindrical collision to be transmitted along the arc-shaped trajectory of the arc-shaped bracket to the front crossbeam and the rear crossbeam of the front seat, so as to avoid the impact force being concentrated at the collision point and causing excessive deformation, thereby increasing the survival space for the driver and passengers in the front seats.

[0018] The device of this invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the particular principles of this invention. Attached Figure Description

[0019] Figure 1A This is a schematic diagram of the installation of the threshold beam structure according to the embodiment of this utility model;

[0020] Figure 1B for Figure 1A Cross-sectional view at point C;

[0021] Figure 2A for Figure 1A 3D exploded view;

[0022] Figure 2B This is a schematic diagram showing the positions of the arc-shaped bracket, the front reinforcement, the rear reinforcement, and the middle reinforcement.

[0023] Figure 2C for Figure 2B Front view;

[0024] Figure 2D for Figure 2C Cross-sectional view at HH;

[0025] Figure 3A for Figure 1A The diagram shows the transmission path of the impact force of a threshold beam structure in response to a cylindrical collision.

[0026] Figure 3B for Figure 3A The left view;

[0027] Figure 3C for Figure 3B Cross-sectional view at point XX;

[0028] Figure 3D for Figure 3B Cross-sectional view at point AA;

[0029] Figure 3E for Figure 3BCross-sectional view at point BB;

[0030] Figure 3F for Figure 3B Cross-sectional view at point C;

[0031] Figure 3G for Figure 3B Cross-sectional view at point DD;

[0032] Figure 3H for Figure 3B Cross-sectional view at EE;

[0033] Figure 4 An exploded 3D view of another type of threshold beam structure;

[0034] Figure 5 An exploded 3D view of another type of threshold beam structure;

[0035] Figure 6 for Figure 5 The cross-sectional view of the arc-shaped support in the diagram.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100: Threshold beam; 101: Inner panel

[0038] 102: Outer panel

[0039] 210: Front crossbeam of the front seats; 220: Rear crossbeam of the front seats.

[0040] 300: Curved bracket

[0041] 310: First end plate; 311: Front connecting plate

[0042] 312: Front flip-edge; 312A: First board

[0043] 312B: Second plate; 313: Front bracket

[0044] 320: Second end plate; 321: Rear connecting plate

[0045] 322: Back-flipped edge; 322A: First board

[0046] 322B: Second plate; 323: Rear bracket

[0047] 330: Curved section

[0048] 340: First Space 350: Second Space

[0049] 360: The Third Space

[0050] 401: Pre-installed firmware; 402: Post-installed firmware

[0051] 403: China-Canada firmware

[0052] 500: Floor; 600: Reinforced crossbeams for front seats.

[0053] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of this invention. The specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific application and environment in which they will be used.

[0054] Throughout these figures, the same reference numerals denote the same or equivalent parts of the present invention. Detailed Implementation

[0055] The present invention will now be described in detail with reference to various embodiments, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. Rather, the present invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0056] When a component is referred to as being "above" or "on top of" another component, the component may be in contact with the other component, or the component may be spaced apart from the other component, or there may be an intermediate component between the component and the other component.

[0057] The following is combined Figures 1A to 6 The threshold beam structure of the present utility model embodiment is described.

[0058] like Figure 1A and Figure 1B As shown, the door sill beam 100 is located on both sides of the floor 500 at the front of the vehicle body. The door sill beam 100 extends in the front-rear direction and is composed of an inner panel 101 and an outer panel 102.

[0059] like Figure 1A and Figure 1B As shown, the sill beam structure of this utility model embodiment includes: a front crossbeam 210 for the front seat, a rear crossbeam 220 for the front seat, and an arc-shaped bracket 300.

[0060] like Figure 1A As shown, the front seat front crossbeam 210 and the front seat rear crossbeam 220 are both mounted on the vehicle floor 500. The front seat front crossbeam 210 and the front seat rear crossbeam 220 extend along the left-right direction of the vehicle and have a predetermined strength.

[0061] like Figures 2A to 2D As shown, the arc-shaped bracket 300 is installed inside the sill beam 100. The arc-shaped portion 330 of the arc-shaped bracket 300 faces outward of the vehicle. The first end 310 of the arc-shaped bracket 300 corresponds to the end of the front crossbeam 210 of the front seat and is connected to the inner plate 101 of the sill beam 100 at the corresponding position. The second end 320 of the arc-shaped bracket 300 corresponds to the rear crossbeam 220 of the front seat and is connected to the inner plate 101 of the sill beam 100 at the corresponding position. The arc-shaped portion 330 is located between the first end 310 and the second end 320 to transmit the impact force of the Pole Test to the front crossbeam and the rear crossbeam of the front seat.

[0062] The present invention allows the impact force of a cylindrical collision to be transmitted along the arc-shaped trajectory of the arc-shaped bracket 300 to the front crossbeam 210 and the rear crossbeam 220 of the front seat, so as to avoid the impact force being concentrated at the collision site and causing excessive deformation, thereby increasing the survival space of the driver and passengers in the front seat.

[0063] The embodiments and accompanying drawings of this utility model all take the left side of the front seat of a vehicle as an example. It should be understood that all the embodiments are equally applicable to the right side of the front seat of a vehicle.

[0064] In an exemplary implementation, such as Figure 1A , Figure 2A and Figure 3A As shown, the end of the front crossbeam 210 of the front seat has an arc on the side facing the rear crossbeam 220 of the front seat, and the end of the rear crossbeam 220 of the front seat has an arc on the side facing the front crossbeam 210 of the front seat, so as to form a smooth arched structure with the arc-shaped bracket 300, which is more conducive to transmitting the impact force of the collision to the front crossbeam 210 and the rear crossbeam 220 of the front seat.

[0065] Example 1

[0066] like Figure 2A As shown, the arc-shaped bracket 300 has a predetermined height in the vertical direction. The first end 310, the arc-shaped portion 330 and the second end 320 of the arc-shaped bracket 300 are formed as one piece. The inner side of the arc-shaped portion 330 forms the first space 340.

[0067] The first end portion 310 includes: a front connecting plate 311 and a front flange 312.

[0068] The front connecting plate 311 extends in the front-rear direction and is connected to the front edge of the arc-shaped portion 330. The inner side of the front connecting plate 311 is provided with a construction adhesive to bond the front connecting plate 311 to the inner plate 101 of the sill beam 100.

[0069] The front flange 312 is connected to the front edge of the front connecting plate 311. The front flange 312, the front connecting plate 311, and a portion of the arc-shaped portion 330 constitute the second space 350. The front flange 312 is generally "L"-shaped and includes a first plate 312A and a second plate 312B formed integrally. The first plate 312A extends in an outward and forward direction, and the second plate 312B is connected to the outer edge of the first plate 312A. The second plate 312B extends in a front-back direction and is welded to the outer plate 102 of the sill beam 100.

[0070] The second end 320 includes: a rear connecting plate 321 and a rear flange 322.

[0071] The rear connecting plate 321 extends in the front-to-back direction and connects to the rear edge of the arc-shaped portion 330. The inner side of the rear connecting plate 321 is provided with a construction adhesive to bond the rear connecting plate 321 to the inner plate 101 of the sill beam 100.

[0072] The rear flange 322 is connected to the rear edge of the rear connecting plate 321. The rear flange 322, the rear connecting plate 321, and a portion of the arc-shaped portion 330 constitute a third space 360. The rear flange 322 is generally "L"-shaped and includes a first plate 322A and a second plate 322B formed integrally. The first plate 322A extends in an outward and rearward direction, and the second plate 322B is connected to the outer edge of the first plate 322A. The second plate 322B extends in a front-rear direction and is welded to the outer plate 102 of the sill beam 100.

[0073] The front flange 312, the front connecting plate 311, the arc-shaped part 330, the rear connecting plate 321, and the rear flange 322 are integrated into one unit.

[0074] like Figures 2A to 2D As shown, the sill beam structure further includes: a front reinforcement 401, a rear reinforcement 402, and a middle reinforcement 403. The front reinforcement 401, rear reinforcement 402, and middle reinforcement 403 are all plate-shaped and have a predetermined width in the left-right direction of the vehicle.

[0075] The front reinforcement 401 is disposed within the second space 350. The front reinforcement 401 has a shape adapted to the second space 350. The rear edge of the front reinforcement 401 is welded to the arc portion 330, the outer edge of the front reinforcement 401 is welded to the outer plate 102 of the sill beam 100, the front edge of the front reinforcement 401 is welded to the front flange 312, and the inner edge of the front reinforcement 401 is welded to the front connecting plate 311.

[0076] The rear reinforcement member 402 is disposed within the third space 360. The rear reinforcement member 402 has a shape adapted to the third space 360. Moreover, the front edge of the rear reinforcement member 402 is welded to the arcuate portion 330, the outer edge of the rear reinforcement member 402 is welded to the outer panel 102 of the sill beam 100, the rear edge of the rear reinforcement member 402 is welded to the rear flange 322, and the inner edge of the rear reinforcement member 402 is welded to the rear connecting plate 321.

[0077] The middle reinforcement member 403 is disposed within the first space 340. The middle reinforcement member 403 has a shape adapted to the first space 340. The outer edge of the middle reinforcement member 403 is arcuate and is welded to the arcuate portion 330. A structural adhesive is provided on the inner edge of the middle reinforcement member 403 to bond the inner edge of the middle reinforcement member 403 to the inner panel 101 of the sill beam 100.

[0078] As Figures 3B to 3H shown, the middle reinforcement member 403 is within the sill beam 100, and the cross-section of the structure formed by the middle reinforcement member 403 and the sill beam 100 is in the shape of a "day" character, enhancing the overall strength of the cross-section.

[0079] As Figure 3E 、 Figure 3F and Figure 3G shown, the cross-section of the arcuate portion 330 is in the shape of an "M" character to enhance the strength of the arcuate portion 330.

[0080] As Figure 3A shown, the impact force of a cylindrical collision is transmitted along the arcuate trajectory of the arcuate portion 330 of the arcuate bracket 300 to the front row seat front cross member 210 and the front row seat rear cross member 220. Specifically, the impact force is transmitted along the Figure 3A direction of the arrow in

[0081] Embodiment 2

[0082] As Figure 4 shown, the arcuate bracket 300 has a predetermined height in the vertical direction, and the inner side of the arcuate portion 330 constitutes the first space 340.

[0083] The first end portion 310 includes: a front connecting plate 311 and a front bracket 313.

[0084] The front connecting plate 311 extends in the front-rear direction and is connected to the front edge of the arcuate portion 330. The front connecting plate 311 and the arcuate portion 330 are integrally formed. A structural adhesive is provided on the inner side of the front connecting plate 311 to bond the front connecting plate 311 to the inner panel 101 of the sill beam 100.

[0085] The front bracket 313 is connected to the outer side of the front connecting plate 311. Specifically, the front bracket 313 is welded to the outer side of the front connecting plate 311.

[0086] The second end portion 320 includes: a rear connection plate 321 and a rear bracket 323.

[0087] The rear connection plate 321 extends in the front-rear direction and is connected to the rear edge of the arc portion 330. The rear connection plate 321 and the arc portion 330 are formed as one body. A structural adhesive is provided on the inner side of the rear connection plate 321 to bond the rear connection plate 321 to the inner plate 101 of the sill beam 100.

[0088] The rear bracket 323 is connected to the outer side of the rear connection plate 321. Specifically, the rear bracket 323 is welded to the outer side of the rear connection plate 321.

[0089] The sill beam structure further includes: a middle reinforcement 403, and the middle reinforcement 403 is disposed in the first space 340. The middle reinforcement 403 is in the shape of a plate and has a predetermined width in the left-right direction of the vehicle.

[0090] In Embodiment 2, the front flanging 312 and the rear flanging 322 of the arc bracket 300 are omitted, simplifying the structure of the arc bracket 300 and making the forming process of the arc bracket 300 easier. In addition, the dimensions of the sill beam structure in Embodiment 2 can be flexibly adjusted.

[0091] The front bracket 313 and the rear bracket 323 have the same structure, enabling the sharing of components.

[0092] The cross-section of the arc portion 330 in Embodiment 2 is in the shape of "M" to improve the strength of the arc portion 330.

[0093] Embodiment 3

[0094] As Figure 5 and Figure 6 shown, the cross-section of the arc bracket 300 is in the shape of "eye", which can improve the strength of the sill beam 100 during a cylindrical collision. The arc bracket 300 has a predetermined height in the vertical direction.

[0095] The first end portion 310 includes: a front connection plate 311 and a front bracket 313.

[0096] The front connection plate 311 extends in the front-rear direction and is connected to the front edge of the arc portion 330. The front connection plate 311 and the arc portion 330 are formed as one body. A structural adhesive is provided on the inner side of the front connection plate 311 to bond the front connection plate 311 to the inner plate 101 of the sill beam 100.

[0097] The front bracket 313 is connected to the outer side of the front connection plate 311. Specifically, the front bracket 313 is welded to the outer side of the front connection plate 311.

[0098] The second end portion 320 includes: a rear connection plate 321 and a rear bracket 323.

[0099] The rear connecting plate 321 extends in the front-to-back direction and connects to the rear edge of the arc-shaped portion 330. The rear connecting plate 321 is integral with the arc-shaped portion 330. The inner side of the rear connecting plate 321 is provided with a structural adhesive to bond the rear connecting plate 321 to the inner plate 101 of the sill beam 100.

[0100] The rear bracket 323 is connected to the outside of the rear connecting plate 321. Specifically, the rear bracket 323 is welded to the outside of the rear connecting plate 321.

[0101] The front bracket 313 and the rear bracket 323 have the same structure, which allows for the sharing of components.

[0102] In addition, Example 3 further omits the intermediate component 403, which can reduce the number of molds and thus reduce costs to a certain extent.

[0103] In all the above embodiments, the outermost longitudinal position of the arc-shaped portion 330 is determined according to the position of the collision post during the cylinder collision, so as to ensure that the collision post is aligned with the vicinity of the center of the arc-shaped portion 330 during the cylinder collision.

[0104] In all the above embodiments, the sill beam structure further includes: a front seat rear crossbeam reinforcement member 600 (see also [reference]). Figure 1A , Figure 2A , Figure 3A , Figure 4 and Figure 5 The front seat rear crossbeam reinforcement 600 is disposed on the upper surface of the end of the front seat rear crossbeam 220. In the prior art, the height of the front seat front crossbeam 210 is greater than the height of the front seat rear crossbeam 220. The front seat rear crossbeam reinforcement 600 can compensate for the height difference between the two, so that the impact force of the cylindrical collision can be better transmitted to the front seat front crossbeam 210 and the front seat rear crossbeam 220 along the arc trajectory of the arc-shaped bracket 300.

[0105] The materials of the front crossbeam 210, the rear crossbeam 220, the arc-shaped bracket 300, and the rear crossbeam reinforcement 600 are all high-strength steel plates.

[0106] This utility model embodiment also provides a vehicle equipped with the aforementioned sill beam structure. Other components and functions of the vehicle according to this utility model embodiment are known to those skilled in the art and will not be described in detail to reduce redundancy.

[0107] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “above,” “below,” “above,” “below,” “upward,” “downward,” “front,” “back,” “behind,” “inner side,” “outer side,” “inward,” “outer,” “internal,” “external,” “inner,” “external,” “forward,” and “backward” are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the accompanying drawings.

[0108] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor to limit the invention to the precise forms disclosed; obviously, many changes and variations are possible in accordance with the foregoing teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A threshold beam structure, characterized in that, include: Front crossbeam of the front seats and rear crossbeam of the front seats; as well as An arc-shaped bracket is installed inside the door sill beam, with the arc-shaped portion of the bracket facing outwards from the vehicle. The first end of the arc-shaped bracket corresponds to the end of the front crossbeam of the front seat, and the second end of the arc-shaped bracket corresponds to the rear crossbeam of the front seat. The arc-shaped portion is located between the first end and the second end to transmit the impact force of a cylindrical collision to the front crossbeam and the rear crossbeam of the front seat.

2. The threshold beam structure according to claim 1, characterized in that, The end of the front crossbeam of the front seat has an arc on the side facing the rear crossbeam of the front seat, and the end of the rear crossbeam of the front seat has an arc on the side facing the front crossbeam of the front seat, so as to form a smooth arched structure with the arc-shaped bracket.

3. The sill beam structure according to claim 1, characterized in that, The inner side of the arc-shaped portion forms a first space; The first end portion includes: Front connecting plate, which extends in the front-to-back direction; and A front flange is connected to the front edge of the front connecting plate, and the front flange, the front connecting plate, and a portion of the arc-shaped portion constitute a second space; The second end includes: Rear connecting plate, which extends in the front-to-back direction; and The rear flange is connected to the rear edge of the rear connecting plate, and the rear flange, the rear connecting plate and a portion of the arc-shaped portion form a third space; The front flange, front connecting plate, arc-shaped part, rear connecting plate, and rear flange are integrated into one unit. The threshold beam structure further includes: The front reinforcement component is located within the second space; The post-installed reinforcement is disposed within the third space; and The firmware is installed within the first space.

4. The threshold beam structure according to claim 3, characterized in that, The front reinforcement, the rear reinforcement, and the middle reinforcement have a predetermined width in the left-right direction.

5. The sill beam structure according to claim 1, characterized in that, The inner side of the arc-shaped portion forms a first space; The first end portion includes: A front connecting plate extending in a front-rear direction and connected to the front edge of the arcuate portion, the front connecting plate being integrally formed with the arcuate portion; and A front bracket that connects to the outside of the front connecting plate; The second end includes: A rear connecting plate extending in the front-rear direction and connected to the rear edge of the arcuate portion, the rear connecting plate being integrally formed with the arcuate portion; and The rear bracket is connected to the outside of the rear connecting plate; The threshold beam structure further includes: The firmware is installed within the first space.

6. The sill beam structure according to claim 5, characterized in that, The intermediate reinforcement has a predetermined width in the left-right direction.

7. The sill beam structure according to claim 3 or 5, characterized in that, The cross-section of the arc-shaped portion is "M" shaped.

8. The sill beam structure according to claim 1, characterized in that, The cross-section of the arc-shaped bracket is "eye" shaped; The first end portion includes: A front connecting plate extending in a front-rear direction and connected to the front edge of the arcuate portion, the front connecting plate being integrally formed with the arcuate portion; and A front bracket that connects to the outside of the front connecting plate; The second end includes: A rear connecting plate extending in the front-rear direction and connected to the rear edge of the arcuate portion, the rear connecting plate being integrally formed with the arcuate portion; and The rear bracket is connected to the outside of the rear connecting plate.

9. The sill beam structure according to claim 1, characterized in that, It further includes: a front seat rear crossbeam reinforcement component, which is disposed on the upper surface of the end of the front seat rear crossbeam.

10. The sill beam structure according to claim 1, characterized in that, The arc-shaped support has a predetermined height in the vertical direction.

11. A vehicle, characterized in that, It is equipped with a sill beam structure as described in any one of claims 1-10.

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