Seat cross beam and vehicle

Abstract

The utility model provides a seat cross beam and a vehicle, and relates to the technical field of vehicle manufacturing. The seat cross beam comprises a seat cross beam body and a reinforcing plate; the seat cross beam body comprises a first connecting section and two supporting sections, the first connecting section is located between the two supporting sections, one end of each supporting section is connected with the first connecting section, and the other end of each supporting section is used for being connected with a doorsill beam or a middle channel of a vehicle; a first cavity is defined by the seat cross beam body and the floor jointly, and the reinforcing plate is located in the first cavity. The reinforcing plate comprises a second connecting section and two reinforcing sections, the second connecting section is located between the two reinforcing sections, the second connecting section is connected with the first connecting section, one end of each reinforcing section is connected with the second connecting section, and the other end of each reinforcing section is provided with a reinforcing flange. According to the seat cross beam, when a vehicle is subjected to side collision, the supporting section and the reinforcing section jointly receive energy generated by collision, stress of the first connecting section and the second connecting section is effectively reduced, and therefore the bending resistance and the side collision resistance of the seat cross beam are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle manufacturing, and particularly to a seat crossbeam and a vehicle. Background Art

[0002] The seat crossbeam is an important component of the vehicle body and plays a role in fixing and supporting the vehicle seat. In addition, when a vehicle has a side collision, the seat crossbeam and the sill beam are the main load-bearing components. Therefore, the strength of the seat crossbeam has a great influence on the ability of the vehicle to resist side collisions.

[0003] In the prior art, the seat crossbeam is designed with a single-layer plate structure. The cross-section of the seat crossbeam is in an inverted U shape, and both ends of the seat crossbeam are connected to the vehicle sill beam or the middle channel.

[0004] However, the strength of the above-mentioned seat crossbeam is relatively low, and its bending resistance and side collision resistance are weak. Utility Model Content

[0005] The embodiments of the present application provide a seat crossbeam and a vehicle to solve the problem that the existing seat crossbeam has relatively low strength, weak bending resistance and weak side collision resistance.

[0006] On the one hand, the embodiments of the present application provide a seat crossbeam, including a seat crossbeam body and a reinforcing plate;

[0007] The seat crossbeam body includes a first connection section and two support sections connected to the first connection section. The first connection section is located between the two support sections. The first connection section is used to be parallel to the vehicle floor. One end of the support section is connected to the first connection section, and the other end of the support section is used to be connected to one of the vehicle sill beam and the middle channel;

[0008] The seat crossbeam body is used to be connected to the floor, and the seat crossbeam body and the floor jointly enclose a first cavity. The reinforcing plate is located in the first cavity;

[0009] The reinforcing plate includes a second connection section and two reinforcing sections connected to the second connection section. The second connection section is located between the two reinforcing sections. The second connection section is connected to the first connection section. One end of the reinforcing section is connected to the second connection section, and a reinforcing flange is provided at the other end of the reinforcing section. And one end of the reinforcing section is connected to one end of the support section.

[0010] In a possible implementation manner, for the seat crossbeam provided by the present application, the projection of the reinforcing section is located within the projection of the support section.

[0011] In a possible implementation manner, for the seat crossbeam provided by the present application, the included angle between the support section and the reinforcing section is greater than or equal to 0° and less than or equal to 30°.

[0012] In a possible implementation manner, for the seat crossbeam provided by the present application, the reinforcing flange faces one of the support section and the floor, and there is a first gap between the end of the reinforcing flange far from the reinforcing section and one of the support section and the floor.

[0013] In a possible implementation manner, for the seat crossbeam provided by the present application, the included angle between the reinforcing flange and the reinforcing section is greater than or equal to 90° and less than or equal to 93°.

[0014] In a possible implementation manner, for the seat crossbeam provided by the present application, an installation opening is provided on the first connection section;

[0015] The installation opening is used for installing the vehicle seat;

[0016] There is a second gap between the connection part of the reinforcing section and the support section and the installation opening.

[0017] In a possible implementation manner, for the seat crossbeam provided by the present application, the first connection section includes a first connection part, a second connection part, and a first support part that are sequentially connected along the width direction of the seat crossbeam body;

[0018] The first connection part, the second connection part, the first support part, and the floor jointly enclose a first cavity;

[0019] The second connection section includes a third connection part, a fourth connection part, and a second support part that are sequentially connected along the width direction of the reinforcing plate;

[0020] The first connection part is connected to the third connection part, the second connection part is connected to the fourth connection part, and there is a third gap between the first support part and the second support part.

[0021] In a possible implementation manner, for the seat crossbeam provided by the present application, at least one of the third connection part and the fourth connection part includes at least one bending area, and the bending area and at least one of the first connection part and the second connection part jointly enclose a second cavity.

[0022] In a possible implementation manner, for the seat crossbeam provided by the present application, the thickness of the reinforcing plate is greater than or equal to 1.5 mm and less than or equal to 1.8 mm.

[0023] On the other hand, the present application provides a vehicle, including a vehicle body and at least one of the above-mentioned seat crossbeams provided on the vehicle body.

[0024] The seat crossbeam and vehicle provided by the embodiments of the present application improve the overall strength of the seat crossbeam by arranging a reinforcing plate on the seat crossbeam body. Among them, the seat crossbeam body is provided with a first connection section and support sections symmetrically arranged at both ends of the first connection section. The support sections are connected to the sill beam or the middle channel of the vehicle, and the seat crossbeam body is fixed on the vehicle. When a side collision occurs to the vehicle, the sill beam collapses to absorb part of the energy, and transmits the impact force to the support section. The support section collapses further to absorb the collision energy, thereby reducing the extrusion of the interior space of the vehicle and protecting the living space of the passengers. The reinforcing plate is provided with a second connection section and two reinforcing sections symmetrically arranged at both ends of the second connection section. The second connection section is connected to the first connection section, the projection of the reinforcing section overlaps with the projection of the support section, and a reinforcing flange is arranged on the reinforcing section. In this way, when the sill beam collapses, in addition to transmitting the energy generated by the impact to the support section, part of the energy can also be transmitted to the reinforcing section by contacting the reinforcing flange. The reinforcing section bears a certain impact force, thereby further reducing the energy transmitted to the first connection section and the second connection section, and avoiding large deformation in the middle of the seat crossbeam. At the same time, the first connection section and the second connection section in the middle of the seat crossbeam overlap to form a double-layer plate structure, further improving the strength of the seat crossbeam and enhancing the bending resistance and side collision resistance of the seat crossbeam. Brief Description of the Drawings

[0025] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present application, and are used together with the description to explain the principles of the present application.

[0026] Figure 1 is a schematic structural diagram of the seat crossbeam provided by the embodiments of the present application;

[0027] Figure 2 is Figure 1 the usage state diagram of the seat crossbeam in

[0028] Figure 3 is Figure 2 the partial enlarged view at A in

[0029] Figure 4 is Figure 3 the sectional view taken along the line B-B of the seat crossbeam in

[0030] Explanation of the Reference Numerals in the Drawings:

[0031] 100 - seat crossbeam body;

[0032] 110 - first connection section;

[0033] 111 - first connection part;

[0034] 112 - second connection part;

[0035] 1121 - Installation opening;

[0036] 113 - First support part;

[0037] 120 - Support section;

[0038] 200 - Reinforcement plate;

[0039] 210 - Second connection section;

[0040] 211 - Third connection part;

[0041] 2111 - Bending area;

[0042] 212 - Fourth connection part;

[0043] 213 - Second support part;

[0044] 220 - Reinforcement section;

[0045] 221 - Reinforcement flange;

[0046] 10 - Threshold beam;

[0047] 20 - Floor.

[0048] Through the above - mentioned drawings, the specific embodiments of the present application have been shown, and there will be a more detailed description hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiment

[0049] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0050] Combined with the background technology, it can be known that in the prior art, the strength of the seat cross - beam with a single - layer plate structure is relatively low, the bending resistance and side - impact resistance are weak. When a vehicle has a side - impact, the seat cross - beam is prone to large deformation, squeezing the survival space inside the vehicle, and it is difficult to meet the safety requirements of the vehicle.

[0051] The seat crossbeam and vehicle provided by the present application, the seat crossbeam includes a seat crossbeam body and a reinforcing plate. The seat crossbeam body and the vehicle floor jointly enclose a first cavity. The reinforcing plate is located in the first cavity and is connected to the seat crossbeam body. The seat crossbeam body includes a first connecting section and two support sections. The support sections are symmetrically arranged at both ends of the first connecting section and are used to connect to the vehicle sill beam or the middle channel. When the vehicle side is impacted, the sill beam collapses and transmits the energy generated by the impact to the support section. The support section collapses to absorb energy to protect the first connecting section and provide sufficient interior space above the first connecting section to ensure the safety of the passengers. The reinforcing plate includes a second connecting section and two reinforcing sections. The reinforcing sections are symmetrically arranged at both ends of the second connecting section. When the sill beam collapses, the side of the sill beam contacts the reinforcing flange on the reinforcing section, and part of the energy is transmitted to the reinforcing plate through the reinforcing flange. In this way, it can play the role of dispersing the energy generated by the impact and improving the load-bearing capacity of the seat crossbeam. Therefore, by arranging the reinforcing plate on the seat crossbeam body, on the one hand, the reinforcing sections of the reinforcing plate can jointly bear the load and absorb energy with the support sections of the seat crossbeam body, thereby reducing the energy transmitted to the first connecting section and the second connecting section; on the other hand, the first connecting section and the second connecting section are stacked and connected together to form a double-layer plate structure, effectively improving the structural strength of the middle part of the seat crossbeam, thereby effectively improving the bending resistance and side impact resistance of the seat crossbeam.

[0052] The following uses specific embodiments to elaborate in detail on the technical solution of the present application and how the technical solution of the present application solves the above technical problems. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following will describe the embodiments of the present application in conjunction with the drawings.

[0053] Among them, Figure 1 is a partial structural schematic diagram of the seat crossbeam provided by the embodiment of the present application. The other parts of the seat crossbeam are symmetrically arranged with the structure in Figure 1 with the dotted line as the axis of symmetry; Figure 1 ; Figure 2 is Figure 1 the usage state diagram of the seat crossbeam connected to the sill beam in Figure 3 ; Figure 2 is the partial enlarged view of the A position in Figure 4 ; Figure 2 is the B-B cross-sectional view of the seat crossbeam in Figures 1 to 4 , and the area circled in

[0054] represents the possible welding points during the assembly of the seat crossbeam.

[0054] It should be noted that the seat crossbeam provided by the embodiment of the present application can be applied to various different vehicles.

[0055] See Figure 1 and Figure 2As shown in the figure, the seat crossbeam provided by the embodiment of the present application includes a seat crossbeam body 100 and a reinforcing plate 200; the seat crossbeam body 100 includes a first connection section 110 and two support sections 120 connected to the first connection section 110. The first connection section 110 is located between the two support sections 120. The first connection section 110 is used to be parallel to the vehicle floor 20. One end of the support section 120 is connected to the first connection section 110, and the other end of the support section 120 is used to be connected to one of the vehicle sill beam 10 and the middle channel; the seat crossbeam body 100 is used to be connected to the floor 20, and the seat crossbeam body 100 and the floor 20 jointly enclose a first cavity. The reinforcing plate 200 is located in the first cavity; the reinforcing plate 200 includes a second connection section 210 and two reinforcing sections 220 connected to the second connection section 210. The second connection section 210 is located between the two reinforcing sections 220. The second connection section 210 is connected to the first connection section 110. One end of the reinforcing section 220 is connected to the second connection section 210. The other end of the reinforcing section 220 is provided with a reinforcing flange 221, and one end of the reinforcing section 220 is connected to one end of the support section 120.

[0056] In the embodiment of the present application, the seat crossbeam includes a seat crossbeam body 100 and a reinforcing plate 200. Among them, the two support sections 120 of the seat crossbeam body 100 are symmetrically arranged at both ends of the first connection section 110. When the seat crossbeam is a left-right through integrated seat crossbeam, the other ends of the two support sections 120 are respectively connected to the sill beams 10 on both sides of the vehicle; when the seat crossbeam is a left-right split seat crossbeam, one support section 120 is connected to the sill beam 10, and the other support section 120 is connected to the middle channel. The two reinforcing sections 220 of the reinforcing plate 200 are symmetrically arranged at both ends of the second connection section 210. The first connection section 110 and the second connection section 210 are overlapped, which can enhance the structural strength of the middle part of the seat crossbeam as a whole, thereby effectively reducing the deformation of the middle part of the seat crossbeam.

[0057] When the side of the vehicle is impacted, the sill beam 10 first deforms and absorbs part of the energy. After the sill beam 10 collapses, the side of the sill beam 10 moves towards the reinforcing section 220 and contacts the reinforcing flange 221 of the reinforcing section 220. In addition, the sill beam 10 is connected to the other end of the support section 120. Therefore, after the sill beam 10 absorbs part of the energy generated by the impact, the remaining energy is transmitted to the reinforcing section 220 and the support section 120. In this way, the reinforcing section 220 can transmit force simultaneously with the support section 120, ensuring that the force transmission path of the seat crossbeam is not damaged, thereby improving the energy absorption efficiency on both sides of the seat crossbeam, reducing the impact force transmitted to the middle part of the seat crossbeam, further improving its bending resistance and anti-side collision performance, and being able to reserve a larger living space for the passengers during a vehicle side collision, improving the safety of the vehicle.

[0058] In some implementable ways, see Figure 2 andFigure 3 As shown, the projection of the reinforcing segment 220 of the embodiment of the present application is located within the projection of the supporting segment 120 .

[0059] In a specific implementation, since the sill beam 10 transfers energy through the reinforcing flange 221, the closer the distance between the sill beam 10 and the reinforcing flange 221 is, the faster the sill beam 10 can contact the reinforcing flange 221 and transfer the energy to the reinforcing section 220. However, if the distance between the sill beam 10 and the reinforcing flange 221 is too close, during the driving of the vehicle, the sill beam 10 and the reinforcing plate 200 may undergo dynamic changes, causing the sill beam 10 to collide with the reinforcing flange 221, generating abnormal noise and even causing deformation and damage to the sill beam 10 and the reinforcing flange 221.

[0060] Therefore, the projection of the reinforcing section 220 should be located within the projection of the supporting section 120, that is, the reinforcing flange 221 of the reinforcing section 220 should maintain a certain safety distance from the sill beam 10 to avoid collision between the sill beam 10 and the reinforcing flange 221 due to the shaking of the vehicle during driving.

[0061] The distance D between the reinforcing flange 221 and the threshold beam 10 is not limited in this application. For example, D=10 mm. In this way, it can be ensured that there is no collision between the reinforcing flange 221 and the threshold beam 10, and the threshold beam 10 can quickly contact the reinforcing flange 221 when the vehicle has a side collision, thereby ensuring its force transmission efficiency.

[0062] In some possible implementations, see Figure 2 and Figure 3 As shown, the angle α between the support segment 120 and the reinforcement segment 220 of the embodiment of the present application is greater than or equal to 0° and less than or equal to 30°.

[0063] It can be understood that the seat on the vehicle is arranged above the seat beam, and an installation opening 1121 is opened on the first connecting section 110 of the seat beam body 100. Since the installation heights of seats in different vehicles are different, the first connecting section 110 needs to be set at different heights, and the angle α between the support section 120 and the reinforcement section 220 also needs to be adjusted accordingly.

[0064] Specifically, the reinforcing section 220 is kept parallel to the floor 20 of the vehicle horizontally. The included angle between the supporting section 120 and the reinforcing section 220 is determined by the height difference between the first connecting section 110 and the sill beam 10. To ensure the stability of the seat mounting point during a side impact of the vehicle, the maximum height of the first connecting section 110 is the same as the height of the sill beam 10. At this time, the two ends of the supporting section 120 are at the same height, and the supporting section 120 is kept horizontal. Then, the included angle α between the supporting section 120 and the reinforcing section 220 is 0°, and the supporting section 120 and the reinforcing section 220 are overlapped. The bolt connecting the seat and the mounting opening 1121 has a certain length. To ensure the stability of the seat mounting, it is necessary to ensure that the bolt does not contact the floor 20 of the vehicle after passing through the mounting opening 1121. At this time, it is the minimum height that the first connecting section 110 can be set, and thus the included angle α between the supporting section 120 and the reinforcing section 220 is 30°. Therefore, the included angle α between the supporting section 120 and the reinforcing section 220 should be greater than or equal to 0° and less than or equal to 30°.

[0065] In some implementable ways, referring to Figure 2 and Figure 3 as shown, the reinforcing flange 221 of the embodiment of the present application faces one of the supporting section 120 and the floor 20, and there is a first gap d1 between the end of the reinforcing flange 221 far from the reinforcing section 220 and one of the supporting section 120 and the floor 20.

[0066] It should be noted that the direction of the reinforcing flange 221 depends on the distances between the reinforcing section 220, the floor 20, and the supporting section 120. When the included angle α between the supporting section 120 and the reinforcing section 220 is relatively large, there is a relatively large distance between the reinforcing section 220 and the supporting section 120. The reinforcing flange 221 can be set to face the supporting section 120, and a first gap d1 needs to be reserved between the reinforcing flange 221 and the supporting section 120 to avoid collision between the reinforcing flange 221 and the supporting section 120 during the driving of the vehicle. When the included angle α between the supporting section 120 and the reinforcing section 220 is relatively small, the distance between the reinforcing section 220 and the supporting section 120 is relatively small. Therefore, the reinforcing flange 221 can be set to face the floor 20 of the vehicle, and a first gap d1 needs to be reserved between the reinforcing flange 221 and the floor 20 to avoid collision between the reinforcing flange 221 and the floor 20 during the driving of the vehicle. The specific direction of the setting of the reinforcing flange 221 is not limited in the embodiment of the present application, as long as enough space can be reserved for the reinforcing flange 221 so that the sill beam 10 contacts the reinforcing flange 221 during a side impact.

[0067] In some implementable ways, referring to Figure 2 and Figure 3 as shown, the included angle β between the reinforcing flange 221 and the reinforcing section 220 of the embodiment of the present application is greater than or equal to 90° and less than or equal to 93°.

[0068] In specific implementation, the reinforcing flange 221 should be set to be as parallel as possible to the sill beam 10, so that the sill beam 10 and the reinforcing flange 221 achieve surface contact, ensure the force transmission efficiency, and improve the energy absorption effect of the reinforcing section 220. The reinforcing section 220 is parallel to the vehicle floor 20, and the sill beam 10 is arranged perpendicular to the floor 20. Therefore, the included angle β between the reinforcing flange 221 and the reinforcing section 220 is set to be greater than or equal to 90° and less than or equal to 93°, which can ensure the contact area between the reinforcing flange 221 and the sill beam 10, improve the energy absorption efficiency of the reinforcing section 220, and further improve the bending resistance and side impact resistance performance of the seat crossbeam.

[0069] In some implementable ways, referring to Figure 2 and Figure 3 as shown, an installation opening 1121 is formed on the first connection section 110 of the embodiment of the present application; the installation opening 1121 is used for installing the vehicle seat; there is a second gap d2 between the connection part of the reinforcing section 220 and the support section 120 and the installation opening 1121.

[0070] In some embodiments, the bolts on the seat pass through the installation opening 1121 to install the seat above the seat crossbeam. Since the seat crossbeam body 100 and the reinforcing plate 200 are mainly connected by welding, in order to ensure that there is enough space for welding between the connection part of the reinforcing section 220 and the support section 120 and the installation opening 1121, a second gap d2 needs to be set between the connection part of the reinforcing section 220 and the support section 120 and the installation opening 1121. The specific range of the second gap d2 is not limited in the embodiment of the present application, as long as the first connection section 110 and the second connection section 210 can be stably connected. Exemplarily, according to the welding standard during actual assembly, the range of the second gap d2 can be set to be greater than or equal to 18 mm.

[0071] In some implementable ways, referring to Figure 2 and Figure 4 as shown, the first connection section 110 of the embodiment of the present application includes a first connection part 111, a second connection part 112, and a first support part 113 that are sequentially connected along the width direction of the seat crossbeam body 100; the first connection part 111, the second connection part 112, the first support part 113, and the floor 20 jointly enclose a first cavity; the second connection section 210 includes a third connection part 211, a fourth connection part 212, and a second support part 213 that are sequentially connected along the width direction of the reinforcing plate 200; the first connection part 111 is connected to the third connection part 211, the second connection part 112 is connected to the fourth connection part 212, and there is a third gap d3 between the first support part 113 and the second support part 213.

[0072] It should be noted that the first connecting section 110 and the second connecting section 210 can be connected by welding. Since the overall areas of the first connecting section 110 and the second connecting section 210 are relatively large, if each surface of the two is welded, the requirements for welding precision are extremely high. Therefore, only the first connecting portion 111 is connected to the third connecting portion 211, and the second connecting portion 112 is connected to the second supporting portion 213, so that the first supporting portion 113 and the second supporting portion 213 are not connected, which can reserve an error space for the assembly of the first connecting section 110 and the second connecting section 210, reduce the requirements for precision of the assembled reinforcing plate 200, and ensure the stability of the seat crossbeam structure. At the same time, a third gap d3 is provided between the first supporting portion 113 and the second supporting portion 213, which can prevent the first supporting portion 113 and the second supporting portion 213 from colliding and being damaged during vehicle driving. The specific range of the third gap d3 is not limited in the embodiments of the present application. Exemplarily, the third gap d3 can be a safety gap of 3 mm during assembly.

[0073] In some feasible ways, referring to Figure 2 and Figure 4 as shown, at least one of the third connecting portion 211 and the fourth connecting portion 212 of the embodiment of the present application includes at least one bending region 2111, and the bending region 2111 and at least one of the first connecting portion 111 and the second connecting portion 112 jointly enclose a second cavity.

[0074] It can be understood that, in order to further ensure the stability of the connection between the first connecting section 110 and the second connecting section 210 and reduce the requirements for the welding precision between the two, the bending region 2111 can be set according to the positions of the welding points on the third connecting portion 211 and the fourth connecting portion 212. Among them, the number of the bending regions 2111 can be set according to the actual distribution of the welding points, which is not limited in the embodiments of the present application. Exemplarily, one bending region 2111 can be set between every two welding points. The bending region 2111 and the seat crossbeam body 100 form a second cavity. In this way, while providing a large enough welding space for each welding point, it can avoid the interference between two adjacent welding points or the welding instability caused by a large error, thereby further improving the strength of the overall structure of the seat crossbeam and the anti-side collision ability of the vehicle.

[0075] In addition, the maximum distance between the bending region 2111 and the first connecting portion 111 or the second connecting portion 112, that is, the size of the second cavity, is not limited in the embodiments of the present application. Exemplarily, the maximum distance d4 between the bending region 2111 and the first connecting portion 111 or the second connecting portion 112 can be a safety distance of 3 mm.

[0076] In some feasible ways, referring to Figure 1 as shown, the thickness of the reinforcing plate 200 of the embodiment of the present application is greater than or equal to 1.5 mm and less than or equal to 1.8 mm.

[0077] In specific implementation, increasing the thickness of the reinforcement plate 200 can enhance the strength of the reinforcement plate 200, thereby improving the bending resistance performance of the seat crossbeam. To meet the basic strength requirements of the reinforcement plate 200, the thickness of the reinforcement plate 200 is set to be greater than or equal to 1.5 mm. However, if the thickness of the reinforcement plate 200 is too large, it will lead to a relatively large overall weight of the seat crossbeam, which is not conducive to the lightweight of the vehicle. At the same time, if the thickness difference between the seat crossbeam body 100 and the reinforcement plate 200 is too large, it will affect the welding stability. Therefore, the thickness of the reinforcement plate 200 is set to be less than or equal to 1.8 mm.

[0078] The embodiment of the present application also provides a vehicle, including a vehicle body and at least one of the above-mentioned seat crossbeams disposed on the vehicle body.

[0079] Among them, the structure and working principle of the seat crossbeam have been described in detail in the above embodiments, and will not be elaborated here one by one.

[0080] In the present application, by installing the above-mentioned seat crossbeam on the vehicle body, the anti-side collision ability of the vehicle can be effectively improved, and sufficient survival space can be reserved when the vehicle is impacted on the side, thereby protecting the safety of the passengers.

[0081] In summary, for the seat crossbeam and the vehicle provided by the present application, the seat crossbeam includes a seat crossbeam body 100 and a reinforcement plate 200. The two support sections 120 of the seat crossbeam body 100 are symmetrically disposed on both sides of the first connection section 110, and the two reinforcement sections 220 of the reinforcement plate 200 are symmetrically disposed on both sides of the second connection section 210. A reinforcement flange 221 is further provided on the reinforcement section 220. When a side collision occurs to the vehicle, the sill beam 10 of the vehicle first collapses to absorb part of the energy, and transmits the remaining energy to the reinforcement section 220 and the support section 120. The reinforcement section 220 and the support section 120 jointly bear the impact force, thereby effectively improving the energy absorption effect on both sides of the seat crossbeam, reducing the energy transmitted to the middle part of the seat crossbeam and the first connection section 110 and the second connection section 210, and thus reducing the possibility of large deformation occurring in the middle part of the seat crossbeam. In addition, the first connection section 110 and the second connection section 210 are connected together to form a double-layer plate structure, further improving the structural strength of the seat crossbeam, enhancing its bending resistance and anti-side collision performance, and thus better protecting the safety of the passengers in the vehicle.

[0082] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0083] The devices or elements referred to in the embodiments of this application or implied must have a specific orientation, be constructed and operate in a specific orientation, and thus cannot be construed as a limitation on the embodiments of this application. In the description of the embodiments of this application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0084] The terms "first", "second", "third", "fourth", etc. (if any) in the description of the embodiments of this application, the claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application described here, for example, can be implemented in an order other than those illustrated or described here.

[0085] In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0086] It can be understood that the various numerical numbers involved in the embodiments of this application are only for the convenience of description and do not limit the scope of the embodiments of this application.

[0087] It can be understood that in the embodiments of this application, the magnitudes of the serial numbers of the above-mentioned processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0088] Those skilled in the art will readily think of other implementation schemes of this application after considering the specification and practicing the utility model disclosed here. This application is intended to cover any variations, uses or adaptations of this application, which follow the general principles of this application and include common general knowledge or conventional technical means in the technical field not disclosed in this application. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of this application are pointed out by the following claims.

[0089] It should be understood that this application is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is only limited by the appended claims.

Claims

1. A seat crossbeam, characterized in that, It includes a seat crossbeam body (100) and a reinforcing plate (200); The seat crossbeam body (100) includes a first connection section (110) and two support sections (120) connected to the first connection section (110). The first connection section (110) is located between the two support sections (120). The first connection section (110) is used to be parallel to the vehicle floor (20). One end of the support section (120) is connected to the first connection section (110), and the other end of the support section (120) is used to be connected to one of the vehicle sill beam (10) and the middle channel; The seat crossbeam body (100) is used to be connected to the floor (20), and the seat crossbeam body (100) and the floor (20) together enclose a first cavity. The reinforcing plate (200) is located in the first cavity; The reinforcing plate (200) includes a second connection section (210) and two reinforcing sections (220) connected to the second connection section (210). The second connection section (210) is located between the two reinforcing sections (220). The second connection section (210) is connected to the first connection section (110). One end of the reinforcing section (220) is connected to the second connection section (210), and the other end of the reinforcing section (220) is provided with a reinforcing flange (221). And one end of the reinforcing section (220) is connected to one end of the support section (120).

2. The seat crossbeam according to claim 1, characterized in that, The projection of the reinforcing section (220) is located within the projection of the support section (120).

3. The seat crossbeam according to claim 1, characterized in that The included angle between the support section (120) and the reinforcing section (220) is greater than or equal to 0° and less than or equal to 30°.

4. The seat crossbeam according to claim 1, characterized in that, The reinforcing flange (221) faces one of the support section (120) and the floor (20), and there is a first gap between the end of the reinforcing flange (221) far from the reinforcing section (220) and one of the support section (120) and the floor (20).

5. The seat crossbeam according to claim 1, characterized in that, The included angle between the reinforcing flange (221) and the reinforcing section (220) is greater than or equal to 90° and less than or equal to 93°.

6. The seat crossbeam according to any one of claims 1 to 5, characterized in that, An installation opening (1121) is formed on the first connection section (110); The installation opening (1121) is used to install the vehicle seat; There is a second gap between the connection part of the reinforcing section (220) and the support section (120) and the installation opening (1121).

7. The seat crossbeam according to any one of claims 1 to 5, characterized in that The first connection section (110) includes a first connection part (111), a second connection part (112) and a first support part (113) connected in sequence along the width direction of the seat crossbeam body (100); The first connection part (111), the second connection part (112), the first support part (113) and the floor (20) together enclose the first cavity; The second connection section (210) includes a third connection part (211), a fourth connection part (212) and a second support part (213) connected in sequence along the width direction of the reinforcing plate (200); The first connecting portion (111) is connected to the third connecting portion (211), the second connecting portion (112) is connected to the fourth connecting portion (212), and there is a third gap between the first supporting portion (113) and the second supporting portion (213).

8. The seat crossbeam according to claim 7, characterized in that At least one of the third connecting portion (211) and the fourth connecting portion (212) includes at least one bending region (2111), and the bending region (2111) and at least one of the first connecting portion (111) and the second connecting portion (112) together enclose a second cavity.

9. The seat crossbeam according to any one of claims 1 to 5, characterized in that, The thickness of the reinforcing plate (200) is greater than or equal to 1.5 mm and less than or equal to 1.8 mm.

10. A vehicle, characterized in that, It includes a vehicle body and at least one seat crossbeam according to any one of claims 1 to 9 provided on the vehicle body.

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