Seat cross member and vehicle
By setting transverse and longitudinal reinforcing ribs in the grooves of the seat crossbeam to form a grid structure, the problems of lightweighting and high performance of the seat crossbeam are solved, improving the overall strength and safety, and making it suitable for modern car design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LEAPMOTOR TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
Smart Images
Figure CN224490739U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and more particularly to a seat crossbeam and a vehicle. Background Technology
[0002] In modern automotive design, the seat crossbeam is a crucial structural component, mounted on the vehicle floor and primarily used to secure the seats. However, the seat crossbeam is more than just a simple mounting bracket; it also needs sufficient rigidity and strength to withstand the energy damage generated by the vehicle body during a collision, ensuring passenger safety.
[0003] In related technologies, seat crossbeam design faces multiple challenges. First, lightweighting is a key objective in automotive design; reducing the weight of the seat crossbeam helps improve fuel efficiency and overall vehicle performance. Second, integrated design requires the seat crossbeam to seamlessly integrate with other structural components of the vehicle body to simplify the manufacturing process and reduce production costs. Furthermore, high performance is crucial for ensuring the stability and reliability of the seat crossbeam under various operating conditions. Therefore, designing a lightweight, integrated, and high-performance seat crossbeam has become a pressing technical problem in the field of vehicle seat design. Utility Model Content
[0004] This application provides a seat crossbeam and a vehicle. The seat crossbeam achieves a comprehensive improvement in lightweighting, integration, and high performance through optimized structural design, thereby at least partially solving the aforementioned technical problems.
[0005] To achieve the above objectives, according to a first aspect of this application, a seat crossbeam is provided. The seat crossbeam has intersecting first, second, and third directions. The seat crossbeam extends along the first direction and has a groove recessed along the second direction. The seat crossbeam includes a connected main body and two connecting portions located at both ends of the main body in the first direction. Each connecting portion is bent relative to the main body and has an outer edge away from the main body. The groove extends through the main body and each connecting portion along the first direction. Multiple transverse reinforcing ribs are disposed at the bottom of the groove and extend along the first direction. The multiple transverse reinforcing ribs include a first transverse reinforcing rib, and the two ends of the first transverse reinforcing rib in the first direction have a first distance from the corresponding outer edge.
[0006] In some embodiments, the plurality of transverse reinforcing ribs further include: a second transverse reinforcing rib and a third transverse reinforcing rib, respectively located on both sides of the first transverse reinforcing rib, the ends of the second transverse reinforcing rib and the third transverse reinforcing rib having a second distance from the outer edge, the first distance being greater than the second distance.
[0007] In some embodiments, the seat crossbeam further includes: a plurality of longitudinal reinforcing ribs disposed at the bottom of the groove and extending along a second direction, each longitudinal reinforcing rib being connected to each transverse reinforcing rib and cooperating with the bottom of the groove to form a first reinforcing cavity; the plurality of longitudinal reinforcing ribs include: a first longitudinal reinforcing rib disposed on the connecting portion, the first longitudinal reinforcing rib, the second transverse reinforcing rib, the third transverse reinforcing rib and the bottom of the groove cooperating to form a collapsible space; the connecting portion has a collapsible hole disposed in the collapsible space, the collapsible hole being located on one side of the first transverse reinforcing rib in the first direction.
[0008] In some embodiments, the seat crossbeam further includes a first protrusion located on both sides of the crumple hole in a second direction.
[0009] In some embodiments, the plurality of longitudinal reinforcing ribs further include: a plurality of second longitudinal reinforcing ribs, all disposed on the main body portion. The plurality of second longitudinal reinforcing ribs include a first sub-rib and a second sub-rib. The first sub-rib is disposed on the side closest to the first longitudinal reinforcing rib, and the second sub-rib is disposed on the side of the first sub-rib away from the first longitudinal reinforcing rib. The first sub-rib has a first end face facing away from the bottom of the groove, and the second sub-rib has a second end face facing away from the bottom of the groove. The first end face is disposed closer to the bottom of the groove than the second end face.
[0010] In some embodiments, the plurality of longitudinal reinforcing ribs further include: a plurality of second longitudinal reinforcing ribs, all disposed on the main body, wherein the second longitudinal reinforcing ribs are disposed closer to the bottom of the groove than the first longitudinal reinforcing ribs.
[0011] In some embodiments, the groove wall has at least one second protrusion extending in a direction away from the transverse reinforcing rib.
[0012] In some embodiments, the seat crossbeam further includes: a first flange portion connected to one end of the groove wall in a third direction, the first flange portion being bent relative to the groove wall and extending along a second direction away from the transverse reinforcing rib.
[0013] In some embodiments, the seat crossbeam further includes: a second flange portion connected to one end of the groove wall in a first direction, the second flange portion being bent relative to the groove wall; wherein the extension line of the first flange portion and the extension line of the second flange portion are set at an angle.
[0014] According to a second aspect of this application, a vehicle is provided, including the seat crossbeam described in any of the above embodiments.
[0015] The technical advantage of this application lies in providing a seat crossbeam and vehicle, which significantly improves the overall strength and stiffness of the structure by setting transverse reinforcing ribs at the bottom of the groove. The first transverse reinforcing ribs have a first distance between their two ends and the corresponding outer edge in the first direction; this design allows for better collapse energy absorption in the connection area. Therefore, the seat crossbeam can provide excellent structural performance and safety while maintaining lightweight design, meeting the multiple requirements of modern automotive design.
[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0019] Figure 1 This is a schematic diagram of the structure of the seat crossbeam provided in the embodiments of this application. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the structure of the seat crossbeam provided in the embodiments of this application. Figure 2 ;
[0021] Figure 3 yes Figure 2 Enlarged illustration of part A Figure 1 ;
[0022] Figure 4 yes Figure 2 Enlarged illustration of part A Figure 2 ;
[0023] Figure 5 This is a schematic diagram of the structure of the seat crossbeam provided in the embodiments of this application. Figure 3 ;
[0024] Figure 6 yes Figure 5 A cross-sectional view along the CC direction;
[0025] Figure 7 yes Figure 6 Enlarged schematic diagram of part B in the middle;
[0026] Figure 8 yes Figure 5 A cross-sectional view along the AA direction;
[0027] Figure 9 yes Figure 5 Cross-sectional view along the BB direction.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10-Groove; 101-Groove bottom; 102-Groove wall; 1-Main body; 2-Connecting part; 21-Outer edge; 20-Collapse space; 22-Collapse hole; 3-Transverse reinforcing rib; 31-First transverse reinforcing rib; 32-Second transverse reinforcing rib; 33-Third transverse reinforcing rib; 4-Longitudinal reinforcing rib; 41-First longitudinal reinforcing rib; 42-Second longitudinal reinforcing rib; 421-First sub-rib; 422-Second sub-rib; 4211-First end face; 4221-Second end face; 5-First protrusion; 6-Second protrusion; 8-First flange; 9-Second flange; 201-First reinforcing cavity; 202-Second reinforcing cavity; 203-Third reinforcing cavity; 204-Fourth reinforcing cavity; 205-Fifth reinforcing cavity; 206-Sixth reinforcing cavity; X-First direction; Y-Second direction; Z-Third direction. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.
[0031] In this application, the term "parallel" includes not only absolute parallelism but also approximate parallelism as commonly understood in engineering. For example, "parallel" refers to the angle between two lines, a line and a surface, or a surface, where the angle is between -1° and 1°. Similarly, "perpendicular" also includes not only absolute perpendicularity but also approximate perpendicularity as commonly understood in engineering. For example, "perpendicular" refers to the angle between two lines, a line and a surface, or a surface, where the angle is between 89° and 91°. Equal distances or equal angles include not only absolute equality but also approximate equality as commonly understood in engineering, meaning there may be a certain degree of error, such as a tolerance range of -1% to 1%.
[0032] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0033] Please see Figures 1-2 This application provides a seat crossbeam, which has intersecting directions X, Y, and Z.
[0034] Please see Figures 1-3 The seat crossbeam extends along a first direction X and has a groove 10 recessed along a third direction Z. The seat crossbeam includes a connected main body 1 and two connecting portions 2 located at both ends of the main body 1 in the first direction X. Each connecting portion 2 is bent relative to the main body 1 and has an outer edge 21 away from the main body 1. The groove 10 passes through the main body 1 and each connecting portion 2 along the first direction X. A plurality of transverse reinforcing ribs 3 are disposed at the bottom 101 of the groove 10 and extend along the first direction X. The plurality of transverse reinforcing ribs 3 include a first transverse reinforcing rib 31, and the two ends of the first transverse reinforcing rib 31 in the first direction X have a first distance from the corresponding outer edge 21.
[0035] Understandably, the bending of each connecting part 2 relative to the main body 1 increases the overall strength and rigidity of the seat crossbeam, enabling it to more effectively withstand forces and stresses from different directions, especially providing better energy absorption and dispersion capabilities during vehicle collisions, thus protecting passenger safety. Furthermore, the bent connecting parts 2 can better adapt to the shape and structure of the vehicle floor, ensuring a tight connection between the seat crossbeam and the vehicle body, reducing errors during installation, and improving installation stability. The seat crossbeam has grooves 10, which reduces material weight. By providing transverse reinforcing ribs 3 at the bottom 101 of the grooves 10, the overall strength and rigidity of the structure are significantly improved. The first transverse reinforcing rib 31 has a first distance D1 between its two ends in the first direction X and its corresponding outer edge 21. This design allows for better collapse energy absorption in the connecting parts 2.
[0036] Please see Figure 4 In some embodiments, the multiple transverse reinforcing ribs 3 further include: a second transverse reinforcing rib 32 and a third transverse reinforcing rib 33, which are located on both sides of the first transverse reinforcing rib 31 respectively. The ends of the second transverse reinforcing rib 32 and the third transverse reinforcing rib 33 have a second distance D2 with the outer edge 21. The first distance is greater than the second distance, that is, D1 > D2.
[0037] Understandably, in the second direction Y, the first transverse reinforcing rib 31 is located between the second transverse reinforcing rib 32 and the third transverse reinforcing rib 33, both of which are positioned close to the groove wall 102 of the groove 10. The first transverse reinforcing rib 31 penetrates the main body 1 and part of the connecting portion 2, while the second transverse reinforcing ribs 32 and 33 penetrate the main body 1 and the connecting portion 2. This results in a first spacing greater than a second spacing, thereby achieving a better collapse energy absorption effect at the connecting portion 2 of the seat beam.
[0038] Please see Figure 4 In some embodiments, the distance between the end face of the second transverse reinforcing rib 32 away from the groove 10 and the bottom 101 of the groove 10 gradually decreases from the direction away from the main body 1, and the distance between the end face of the third transverse reinforcing rib 33 away from the groove 10 and the bottom 101 of the groove 10 gradually decreases from the direction away from the main body 1. Therefore, during a collision, progressive energy absorption can be achieved, which helps to optimize energy management during a collision and reduce the damage of instantaneous impact force to the seat beam structure.
[0039] Please see Figure 2 In some embodiments, the seat crossbeam further includes: multiple longitudinal reinforcing ribs 4, which are disposed at the bottom 101 of the groove 10 and extend along the second direction Y. Each longitudinal reinforcing rib 4 is connected to each transverse reinforcing rib 3 and cooperates with the bottom 101 of the groove to form a first reinforcing cavity 201.
[0040] Understandably, the longitudinal reinforcing rib 4 helps improve the torsional resistance of the seat crossbeam, reducing potential twisting and deformation during vehicle operation and ensuring seat stability and safety. Multiple transverse reinforcing ribs 3 and multiple longitudinal reinforcing ribs 4 combine to form a grid-like seat crossbeam, significantly improving its overall strength and rigidity. This allows it to more effectively withstand forces and stresses from different directions, thereby enhancing the seat crossbeam's protective performance in collision situations and strengthening passenger safety.
[0041] Please see Figures 2-3 The multiple longitudinal reinforcing ribs 4 include: a first longitudinal reinforcing rib 41, which is disposed on the connecting portion 2; the first longitudinal reinforcing rib 41, a second transverse reinforcing rib 32, a third transverse reinforcing rib 33, and the groove bottom 101 cooperate to form a collapsible space 20. The connecting portion 2 has a collapsible hole 22 disposed in the collapsible space 20, which is located on one side of the first longitudinal reinforcing rib 41 in the first direction X.
[0042] Understandably, the crumple zone 20 allows for controlled deformation during a collision, and the crumple hole 22 can further guide this deformation, concentrating it in a specific area to ensure that the seat beam can effectively absorb and disperse impact energy during a collision, reducing the direct impact on passengers.
[0043] Please see Figure 1 and Figure 3 In some embodiments, the seat crossbeam further includes a first protrusion 5, which is located on both sides of the collapse hole 22 in the second direction Y.
[0044] Understandably, the first protrusion 5 is located on both sides of the crumple zone 22, which can guide and limit the deformation around the crumple zone 22, so that it undergoes the expected controlled deformation during a collision, which helps to optimize the energy absorption path and improve the collision performance of the seat beam.
[0045] Please see Figure 2 In some embodiments, the seat crossbeam further includes a second protrusion 6, which is disposed on the groove wall 102 of the groove 10, and each second protrusion 6 protrudes in a direction away from the transverse reinforcing rib 3. The provision of the second protrusion 6 can increase the local strength and rigidity of the groove wall 102 of the groove 10, and reduce deformation and damage during a collision.
[0046] Please see Figure 2 In some embodiments, the multiple longitudinal reinforcing ribs 4 further include multiple second longitudinal reinforcing ribs 42, all of which are disposed on the main body 1. The second longitudinal reinforcing ribs 42 are disposed closer to the bottom of the groove 101 than the first longitudinal reinforcing ribs 41. With this arrangement, during a collision, the first longitudinal reinforcing ribs 41 deform before the second longitudinal reinforcing ribs 42 to gradually absorb the energy generated by the collision, thereby achieving better energy buffering and energy transfer, and optimizing energy management during a collision.
[0047] For example, please refer to Figure 2 as well as Figures 5-7 The multiple second longitudinal reinforcing ribs 42 include a first sub-rib 421 and a second sub-rib 422. The first sub-rib 421 is located on the side closest to the first longitudinal reinforcing rib 41, and the second sub-rib 422 is located on the side of the first sub-rib 421 away from the first longitudinal reinforcing rib 41. The first sub-rib 421 has a first end face 4211 facing away from the bottom of the groove 101, and the second sub-rib 422 has a second end face 4221 facing away from the bottom of the groove 101. The first end face 4211 is located closer to the bottom of the groove 101 than the second end face 4221.
[0048] Understandably, please refer to Figure 7The first sub-rib 421 is located between the first longitudinal reinforcing rib 41 and the second sub-rib 422 in the first direction X. The distance between the first end face 4211 of the first sub-rib 421 and the bottom 101 of the groove 10 in the third direction Z is H1, and the distance between the second end face 4221 of the second sub-rib 422 and the bottom 101 of the groove 10 in the third direction Z is H2, where H1 < H2. With this configuration, in the event of a collision, the first sub-rib 421 deforms before the second sub-rib 422 to gradually absorb the energy generated by the collision, thereby achieving better energy buffering and energy transfer, and optimizing energy management during the collision.
[0049] Furthermore, with H1:H2 = 3:1, the energy generated by the collision can be gradually absorbed, thereby achieving better energy buffering and energy transfer, and optimizing energy management during the collision.
[0050] Furthermore, the distance between the end face of the first longitudinal reinforcing rib 41 facing away from the bottom of the groove 101 and the bottom of the groove 101 is H3, where H3 < H1 < H2. With this setting, during a collision, the first longitudinal reinforcing rib 41 deforms first, followed by the first sub-rib 421, and finally the second sub-rib 422, to absorb the energy generated by the collision in multiple stages, thereby achieving better energy buffering and energy transfer, and further optimizing energy management during the collision.
[0051] Please see Figure 2 as well as Figures 8-9 In some embodiments, the main body 1 is provided with a plurality of first reinforcing cavities 201, a plurality of second reinforcing cavities 202, a plurality of third reinforcing cavities 203 and a plurality of fourth reinforcing cavities 204, and the connecting part 2 is provided with a fifth reinforcing cavity 205 and a sixth reinforcing cavity 206.
[0052] Each first reinforcing cavity 201 is formed by the cooperation of the second transverse reinforcing rib 32, the second longitudinal reinforcing rib 42, the bottom 101 of the groove 10, and the wall 102 of the groove 10.
[0053] Each second reinforcing cavity 202 is formed by the cooperation of the third transverse reinforcing rib 33, the second longitudinal reinforcing rib 42, the bottom 101 of the groove 10, and the wall 102 of the groove 10.
[0054] The first reinforcing cavity 201 and the second reinforcing cavity 202 can serve as side reinforcing cavities for the seat crossbeam, increasing the local strength and rigidity of the groove wall 102 of the groove 10, and effectively resisting the damage to the seat crossbeam structure caused by the impact force during a collision.
[0055] Each third reinforcing cavity 203 is formed by the cooperation of the first transverse reinforcing rib 31, the second transverse reinforcing rib 32, the second longitudinal reinforcing rib 42, the bottom 101 of the groove 10, and the wall 102 of the groove 10.
[0056] Each fourth reinforcing cavity 204 is formed by the cooperation of the third transverse reinforcing rib 33, the second transverse reinforcing rib 32, the second longitudinal reinforcing rib 42, the bottom 101 of the groove 10, and the wall 102 of the groove 10.
[0057] The third reinforcing cavity 203 and the fourth reinforcing cavity 204 can serve as the central reinforcing cavities of the seat crossbeam, increasing the structural strength and rigidity of the central part of the seat crossbeam and effectively resisting the damage to the seat crossbeam structure caused by impact forces during a collision.
[0058] The fifth reinforcing cavity 205 is formed by the cooperation of the second transverse reinforcing rib 32, the first longitudinal reinforcing rib 41, the bottom 101 of the groove 10, and the wall 102 of the groove 10.
[0059] The sixth reinforcing cavity 206 is formed by the cooperation of the third transverse reinforcing rib 33, the first longitudinal reinforcing rib 41, the bottom 101 of the groove 10, and the wall 102 of the groove 10.
[0060] The fifth reinforcing cavity 205 and the sixth reinforcing cavity 206 can serve as end reinforcing cavities for the seat crossbeam, which helps to distribute stress more evenly, reduce stress concentration, and thus effectively absorb and disperse impact energy, providing better protection.
[0061] The seat crossbeam of this embodiment features multiple transverse reinforcing ribs 3 and multiple longitudinal reinforcing ribs 4 within the groove 10, dividing the groove 10 into multiple grid-like structural cavities. This enhances the structural strength and rigidity of the seat crossbeam and effectively absorbs and disperses energy during a collision, providing better protection. Therefore, the seat crossbeam can maintain lightweight design while offering excellent structural performance and safety, meeting the diverse needs of modern automotive design.
[0062] Please see Figure 1 and Figure 2 In some embodiments, the seat crossbeam further includes a first flange 8, which is connected to one end of the groove wall 102 of the groove 10 in the third direction Z. The first flange 8 is bent relative to the groove wall 102 of the groove 10 and extends along the second direction Y and away from the transverse reinforcing rib 3.
[0063] It can be understood that the groove 10 has two groove walls 102 oppositely arranged in the second direction Y, and each groove wall 102 is connected with a first flanging part 8 arranged in a bent shape. In this way, the overall cross-section of the seat crossbeam is designed as a "ji" shape, which helps to distribute stress more evenly, reduce stress concentration, and thus increase the overall strength and stiffness of the seat crossbeam. Among them, if the second protrusion 6 can be arranged on one groove wall 102 of the groove 10, during a collision, the groove wall 102 with the second protrusion 6 absorbs energy prior to the other groove wall 102 to achieve the effect of gradual energy absorption. If the second protrusion 6 can be arranged on both groove walls 102 of the groove 10, during installation, there is no need for a protrusion on either groove wall 102, which simplifies the production and assembly processes and improves manufacturing efficiency.
[0064] Please refer to Figure 1 and Figure 2 , in some embodiments, the seat crossbeam further includes: a second flanging part 9, the second flanging part 9 is connected to one end of the groove wall 102 of the groove 10 in the first direction X, and the second flanging part 9 is arranged in a bent shape relative to the groove wall 102 of the groove 10. Among them, the extension line of the first flanging part 8 and the extension line of the second flanging part 9 are arranged at an angle. With such an arrangement, the contact area during a collision can be increased to better achieve energy absorption. At the same time, the inclined surfaces of the first transverse reinforcing rib 31, the second transverse reinforcing rib 32, and the third transverse reinforcing rib 33 provide positive support and contact collision, so as to better achieve energy absorption.
[0065] The seat crossbeam provided in this embodiment is an integrally cast part, and the materials used are lightweight materials such as magnesium alloy, aluminum alloy, or plastic. The overall cross-section of the seat crossbeam is designed as a "ji" shape, and there is a large degree of structural freedom inside the "ji" shape. Based on the installation and performance requirements of the seat crossbeam, a criss-crossing reinforcing rib structure is arranged in the groove 10 of the seat crossbeam to enhance the structural strength of the integrated seat crossbeam.
[0066] In some embodiments, the present application embodiment also provides a vehicle, including the above-mentioned seat crossbeam. The seat crossbeam is installed on the vehicle body floor to optimize the transmission path of the impact force during a vehicle collision. The specific structure of the seat crossbeam can refer to the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.
[0067] In the above embodiments, the descriptions of each embodiment have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0068] Among the embodiments, embodiments, and related technical features of the present application, they can be combined and replaced with each other without conflict.
[0069] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A seat crossbeam, characterized in that, The seat crossbeams intersect in pairs in a first direction, a second direction, and a third direction. The seat crossbeam extends along the first direction and has a recessed groove along the second direction. The seat crossbeam includes a connected main body and two connecting portions located at both ends of the main body in the first direction. Each connecting portion is bent relative to the main body and has an outer edge away from the main body. The groove extends through the main body and each connecting portion along the first direction. The seat crossbeam also includes: Multiple transverse reinforcing ribs are disposed at the bottom of the groove and extend along the first direction. The multiple transverse reinforcing ribs include a first transverse reinforcing rib, and the two ends of the first transverse reinforcing rib in the first direction have a first distance from the corresponding outer edge.
2. The seat crossbeam according to claim 1, characterized in that, The multiple transverse reinforcing ribs also include: The second and third transverse reinforcing ribs are located on both sides of the first transverse reinforcing rib, and the ends of the second and third transverse reinforcing ribs are respectively separated from the outer edge by a second distance, wherein the first distance is greater than the second distance.
3. The seat crossbeam according to claim 2, characterized in that, Also includes: Multiple longitudinal reinforcing ribs are disposed at the bottom of the groove and extend along the second direction, and each of the longitudinal reinforcing ribs is connected to each of the transverse reinforcing ribs; The aforementioned longitudinal stiffeners include: A first longitudinal reinforcing rib is disposed on the connecting part, and the first longitudinal reinforcing rib, the second transverse reinforcing rib, the third transverse reinforcing rib, and the bottom of the groove cooperate to form a collapsible space; The connecting part has a collapse hole provided in the collapse space, and the collapse hole is located on the side of the first longitudinal reinforcing rib in the first direction.
4. The seat crossbeam according to claim 3, characterized in that, Also includes: The first protrusion is located on both sides of the collapse hole in the second direction.
5. The seat crossbeam according to claim 3, characterized in that, Multiple longitudinal stiffeners also include: Multiple second longitudinal reinforcing ribs are provided on the main body, and the second longitudinal reinforcing ribs are provided closer to the bottom of the groove than the first longitudinal reinforcing ribs.
6. The seat crossbeam according to claim 5, characterized in that, The multiple second longitudinal stiffeners include a first sub-stiffener and a second sub-stiffener, wherein the first sub-stiffener is located on the side closest to the first longitudinal stiffener, and the second sub-stiffener is located on the side of the first sub-stiffener away from the first longitudinal stiffener; The first sub-rib has a first end face facing away from the bottom of the groove, and the second sub-rib has a second end face facing away from the bottom of the groove. The first end face is positioned closer to the bottom of the groove than the second end face.
7. The seat crossbeam according to claim 1, characterized in that, Also includes: At least one second protrusion is disposed on the groove wall of the groove, and each second protrusion extends in a direction away from the transverse reinforcing rib.
8. The seat crossbeam according to claim 1, characterized in that, Also includes: The first flange is connected to one end of the groove wall in the third direction. The first flange is bent relative to the groove wall and extends along the second direction away from the transverse reinforcing rib.
9. The seat crossbeam according to claim 8, characterized in that, Also includes: The second flange is connected to one end of the groove wall in the first direction, and the second flange is bent relative to the groove wall. The extension line of the first flange portion and the extension line of the second flange portion are set at an angle.
10. A vehicle, characterized in that, Includes the seat crossbeam as described in any one of claims 1-9.