Seat cross beam connecting structure and vehicle

Abstract

The seat cross beam connecting structure comprises a doorsill beam and a cross beam body, the doorsill beam is arranged in the first direction, and the outer surface of the doorsill beam comprises an inner side face and an upper side face which are distributed on different sides; the cross beam body is arranged in the second direction and comprises an upper beam plate and two side beam plates, the two side beam plates are distributed below the two sides of the upper beam plate in the first direction, the ends of the side beam plates abut against the inner side face, the end of the upper beam plate is bent upwards to form a bent part, and the end of the upper beam plate is bent upwards to form a bent part. The lower end face of the side, close to the doorsill beam, of the bent part is higher than the upper side face in the third direction. The utility model further discloses a vehicle with the same. When the seat cross beam connecting structure is subjected to side collision or column collision, the upper beam plate and the side beam plate in the area where the bent part is located can be crushed by the threshold beam to be separated, then collision energy is effectively absorbed, and the cross beam body is prevented from tilting in the middle of a vehicle in the Z direction.

Description

Technical Field

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

[0002] In the vehicle body structure, the seat crossbeam assembly not only provides installation functions for seats and other systems, but its structure and strength also determine the safety performance of the vehicle when the vehicle collides sideways.

[0003] Most of the seat cross beams of existing vehicles are welded to the vehicle body floor, and then the end side of the seat cross beam is placed against the inner side of the door sill beam, and then the seat cross beam and the door sill beam are connected by installing a lap piece. In this case, insufficient energy absorption will occur when a side collision occurs, and the impact energy will be directly transferred from the door sill beam to the seat cross beam, causing the middle part of the seat cross beam to bend in the Z direction, causing injury to the occupants. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides a seat cross beam connection structure and a vehicle, wherein the connection structure can act as a crush energy absorption zone when subjected to a side collision, thereby preventing the middle portion of the seat cross beam from bending in the Z direction.

[0005] According to one aspect of an embodiment of the present application, a seat crossbeam connection structure is provided, including: a threshold beam, the threshold beam is arranged along a first direction, the outer surface of the threshold beam includes an inner side surface and an upper side surface distributed on opposite sides; and a crossbeam body, the crossbeam body is arranged along a second direction, the crossbeam body includes an upper beam plate and two side beam plates, the two side beam plates are distributed below both sides of the upper beam plate along the first direction, the ends of the side beam plates abut against the inner side surfaces, the ends of the upper beam plates are bent upward to form a bent portion, and the lower end surface of the bent portion on the side close to the threshold beam is higher in height in a third direction than the upper side surface.

[0006] In an exemplary embodiment of the present application, a first flange is formed on one side of the bent portion close to the door sill beam extending along the second direction, and the first flange is overlapped and fixed to the upper side surface.

[0007] In an exemplary embodiment of the present application, the bending portion is provided with a drawing protrusion extending along the second direction, and the drawing protrusion extends from a side of the bending portion away from the door sill beam to an end of the first flange.

[0008] In an exemplary embodiment of the present application, the end portion of the side beam plate extends along the first direction to form a second flange, and the second flange is attached to the inner side surface.

[0009] In an exemplary embodiment of the present application, the second flanges of the two side beam plates are arranged to extend in opposite directions in the first direction.

[0010] In an exemplary embodiment of the present application, a wedge-shaped notch is provided at a connection between the upper beam plate and the side beam plate close to a side of the door sill beam.

[0011] In an exemplary embodiment of the present application, a reinforcement is further included, which is arranged on one side of the beam body along the first direction, a first side of the reinforcement is connected to the sill beam, and a second side of the reinforcement adjacent to the first side is connected to the beam body.

[0012] In an exemplary embodiment of the present application, the reinforcement includes a top plate and a side plate, the top plate is bent corresponding to the bending portion, the side of the top plate close to the door sill beam overlaps the upper side surface, and the side of the top plate close to the crossbeam body overlaps and is fixed to the upper beam plate; the side plate is surrounded below the top plate, the side plate close to the door sill beam abuts the inner side surface, and the side of the top plate close to the crossbeam body abuts and is fixed to the side beam plate.

[0013] In an exemplary embodiment of the present application, the upper beam plate and the side beam plate are integrally formed, and the top plate and the side plate are integrally formed.

[0014] A second aspect of the present application discloses a vehicle, comprising the above-mentioned seat crossbeam connection structure.

[0015] The crossbeam body and the threshold beam of the present application are arranged perpendicular to each other, and the side beam plate of the crossbeam body is abutted against the inner side of the threshold beam to provide collision support, and the end of the upper beam plate of the crossbeam body is bent upward so that the lower end surface of the bent portion on the side close to the threshold beam is higher than the threshold beam. In this way, when a side collision or a column collision occurs, the upper beam plate and the side beam plate in the area where the bent portion is located are crushed and separated by the threshold beam, which can effectively absorb the collision energy and prevent the crossbeam body from tilting in the Z direction in the middle of the vehicle.

[0016] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 The structural diagram of the seat crossbeam connection structure described in the embodiment of the present application is shown. Figure 1 ;

[0019] Figure 2 The structural diagram of the seat crossbeam connection structure described in the embodiment of the present application is shown. Figure 2 ;

[0020] Figure 3 A schematic diagram showing the connection between the crossbeam body and the threshold beam according to an embodiment of the present application is shown;

[0021] Figure 4 A schematic structural diagram of the beam body described in an embodiment of the present application is shown;

[0022] Figure 5 A schematic diagram of the connection between the reinforcement member and the beam body described in an embodiment of the present application is shown.

[0023] Description of Figure Numbers:

[0024] 1-sill beam, 11-inner side, 12-upper side,

[0025] 2- beam body, 21- upper beam plate, 211- bending portion, 212- first flange, 213- drawing protrusion, 22- side beam plate, 221- second flange, 23- wedge-shaped notch,

[0026] 3-reinforcement member, 31-top plate, 32-side plate.

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0029] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0031] It should also be noted that the first direction mentioned in this embodiment can be understood as the axial direction of the vehicle body length; the second direction mentioned in this embodiment can be understood as the axial direction of the vehicle body width; and the third direction mentioned in this embodiment can be understood as the axial direction of the vehicle body height.

[0032] like Figures 1 to 5 As shown, this embodiment provides a seat cross beam connection structure, including a sill beam 1 and a cross beam body 2, the sill beam 1 is fixed to the vehicle body floor along a first direction S1, and the outer surface of the sill beam 1 includes an inner side surface 11 and an upper side surface 12 distributed on opposite sides; the cross beam body 2 is fixed to the vehicle body floor along a second direction S2, and the cross beam body 2 includes an upper beam plate 21 and two side beam plates 22, the two side beam plates 22 are distributed on both sides of the upper beam plate 21 along the first direction S1, and are connected below the upper beam plate 21; wherein the end of the side beam plate 22 abuts against the inner side surface 11 of the sill beam 1 to provide a collision The end of the upper beam plate 21 is bent upward to form a bent portion 211, and the lower end surface of the bent portion 211 on the side close to the sill beam 1 is higher than the upper side surface 12 of the sill beam 1 in the third direction S3. In this way, the sill beam 1 is displaced toward the inside of the vehicle when it is hit by a side collision or a column collision, and the upper side surface 12 of the sill beam 1 can squeeze the lower end surface of the bent portion 211, causing the upper beam plate 21 and the side beam plate 22 to be crushed and separated from the area where the bent portion 211 is located, thereby effectively absorbing the collision energy and preventing the cross beam body 2 from warping upward in the third direction S3 in the middle of the vehicle.

[0033] It can be understood that the inner side surface 11 and the upper side surface 12 of the threshold beam 1 are distributed on different sides, which means that the direction of the inner side surface 11 is different from that of the upper side surface 12. In this embodiment, the inner side surface 11 is arranged toward the interior of the vehicle in the second direction S2, and the upper side surface 12 is arranged upward in the third direction S3, that is, the inner side surface 11 and the upper side surface 12 are perpendicular to each other; in other embodiments, the inner side surface 11 and / or the upper side surface 12 can be arranged at a certain angle. It can also be understood that the collision support of the cross beam body 2 to the threshold beam 1 is mainly provided by the side beam plate 22, and the upper beam plate 21 is only used to connect the two side beam plates 22 and install the seat, and only plays a role in transmitting part of the load for the collision support. Therefore, the collision performance of the cross beam body 2 will not be reduced due to the crushing design of the bending portion 211. On the contrary, since the crushing design of the bending portion 211 can absorb the collision energy, it can also reduce the impact damage caused by the side collision.

[0034] In some embodiments, Figure 1 , Figure 3 and Figure 4 As shown, a first flange 212 is formed on one side of the bent portion 211 close to the threshold beam 1 along the second direction S2, and the first flange 212 overlaps and is fixed to the upper side surface 12 of the threshold beam 1. By setting the first flange 212, the upper beam plate 21 can be conveniently connected to the threshold beam 1, and the connection stability between the cross beam body 2 and the threshold beam 1 can be improved. Preferably, the fixed connection between the first flange 212 and the upper side surface 12 of the threshold beam 1 can be achieved by bolt connection, so that the cross beam body 2 and the threshold beam 1 are detachably fixedly connected, which is convenient for subsequent replacement and maintenance.

[0035] In some embodiments, Figure 3 As shown, the bending portion 211 is provided with a drawing protrusion 213 extending along the second direction S2, and the drawing protrusion 213 extends from the side of the bending portion 211 away from the door sill beam 1 to the end of the first flange 212. Through the setting of the drawing protrusion 213, the structural strength of the bending portion 211 and the first flange 212 can be effectively improved, and the deformation and wrinkling of the bending portion 211 and the first flange 212 during daily driving can be reduced.

[0036] In some embodiments, Figure 1 , Figure 3 and Figure 4 As shown, the end of the side beam plate 22 extends along the first direction S1 to form a second flange 221, and the second flange 221 is arranged to fit the inner side surface 11. The second flange 221 can effectively increase the contact area between the side beam plate 22 and the inner side surface 11 of the door sill beam 1, thereby improving the supporting stability of the cross beam body 2.

[0037] Further, such as Figure 1 and Figure 4 As shown, the second flanges 221 of the two side beam plates 22 are extended in opposite directions in the first direction S1, that is, one of the second flanges 221 extends along one end of the first direction S1, and the other second flange 221 extends along the other end of the first direction S1. In this way, when subjected to a side collision or a column collision, the two second flanges 221 can disperse the force along both ends of the first direction S1, thereby facilitating the crushing and separation of the upper beam plate 21 and the side beam plate 22.

[0038] Furthermore, the second flange 221 can be fixedly connected to the inner side surface 11 of the threshold beam 1, and the connection method includes but is not limited to bolt connection or welding, so as to further improve the connection stability between the cross beam body 2 and the threshold beam 1. At the same time, the two second flanges 221 are arranged to extend in opposite directions in the first direction S1, which can also facilitate the connection operation between the second flange 221 and the inner side surface 11.

[0039] It can be understood that the crushing separation of the upper beam plate 21 and the side beam plate 22 is mainly based on the height offset design of the bending portion 211 and the upper side surface 12. After the first flange 212 is fixedly connected to the upper side surface 12 and the second flange 221 is fixedly connected to the inner side surface 11, it only improves the connection stability between the crossbeam body 2 and the threshold beam 1. The main load transfer direction of the ends of the upper beam plate 21 and the side beam plate 22 is not changed, and it does not affect the crushing separation of the upper beam plate 21 and the side beam plate 22.

[0040] In some embodiments, Figure 4 As shown, a wedge-shaped notch 23 is provided at the connection between the upper beam plate 21 and the side beam plate 22 near the side of the door sill beam 1. By setting the wedge-shaped notch 23, stress concentration can be generated at the notch, which facilitates the crushing and separation of the upper beam plate 21 and the side beam plate 22.

[0041] In some embodiments, Figure 1 , Figure 2 and Figure 5 As shown, the seat cross beam connection structure also includes a reinforcement 3, which is arranged on one side of the cross beam body 2 along the first direction S1 and fixed to the vehicle body floor, the first side of the reinforcement 3 is connected to the sill beam 1, and the second side of the reinforcement 3 adjacent to the first side is connected to the cross beam body 2. By setting the reinforcement 3, the contact section between the cross beam body 2 and the sill beam 1 can be increased, thereby improving the structural strength and collision performance of the seat cross beam.

[0042] For example, Figure 1 , Figure 2 and Figure 5 As shown, the reinforcement 3 includes a top plate 31 and a side plate 32, the top plate 31 is bent corresponding to the bending portion 211, and its bending arc is consistent with the bending portion 211; the side of the top plate 31 close to the sill beam 1 overlaps the upper side surface 12 of the sill beam 1, and the side of the top plate 31 close to the beam body 2 overlaps and is fixed to the upper beam plate 21 of the beam body 2; the side plate 32 is surrounded below the top plate 31, the side of the side plate 32 close to the sill beam 1 abuts the inner side surface 11 of the sill beam 1, and the side of the top plate 31 close to the beam body 2 abuts and is fixed to the side beam plate 22 of the beam body 2; wherein, the fixing connection method of the top plate 31 and the upper beam plate 21, and the side plate 32 and the side beam plate 22 includes but is not limited to bolt connection or welding, etc., preferably welding. In this way, load transfer can be effectively achieved and the structural strength of the seat cross beam can be improved. At the same time, the sill beam 1 can be displaced toward the inside of the vehicle when subjected to a side collision or a column collision, and the top plate 31 can also be crushed from the bending area along with the upper beam plate 21, effectively absorbing the collision energy and improving the collision performance of the seat cross beam.

[0043] Furthermore, the side of the top plate 31 close to the sill beam 1 can be fixedly connected to the upper side surface 12 of the sill beam 1, and the side of the side plate 32 close to the sill beam 1 can be fixedly connected to the inner side surface 11 of the sill beam 1. The fixed connection method includes but is not limited to bolt connection or welding, etc., to further improve the connection stability of the reinforcement 3.

[0044] It is understandable that the side edges of the top plate 31 for overlapping the upper side surface 12 and the upper beam plate 21, and the side edges of the side plates 32 for abutting the inner side surface 11 and the side beam plate 22, can also be provided with flanges to increase the contact area with the corresponding side surfaces and beam plates, and facilitate the connection with the corresponding side surfaces and beam plates. It is also understandable that a notch can be provided at the connection between the top plate 31 and the side plates 32 near the side of the door sill beam 1, so that stress concentration occurs at the notch, and the top plate 31 and the side plates 32 are conveniently crushed and separated.

[0045] Preferably, the aforementioned upper beam plate 21 and the side beam plate 22 can be integrally formed using alloy one-piece die-casting technology, so that the cross beam body 2 is formed as a whole, thereby improving the integration and structural strength of the cross beam body 2 and reducing the setting of connecting parts to meet the lightweight requirements; similarly, the aforementioned top plate 31 and the side plate 32 can also be integrally formed using alloy one-piece die-casting technology, so that the reinforcement 3 is formed as a whole to achieve the same purpose.

[0046] In another embodiment, a vehicle is provided, comprising the seat cross beam connection structure in the above embodiment. For other structures and working principles of the seat cross beam connection structure, please refer to the above description of the embodiment of the seat cross beam connection structure. Since the seat cross beam connection structure has the above technical effects, the vehicle having the seat cross beam connection structure should also have the corresponding technical effects, which will not be described in detail here.

[0047] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined. And the description of the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0049] The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradicting each other.

[0050] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made according to the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A seat crossbeam connection structure, characterized in that: include: A threshold beam, the threshold beam being arranged along a first direction, the outer surface of the threshold beam comprising an inner side surface and an upper side surface distributed on opposite sides; and A crossbeam body is arranged along the second direction, and the crossbeam body includes an upper beam plate and two side beam plates. The two side beam plates are distributed below both sides of the upper beam plate along the first direction, and the ends of the side beam plates abut against the inner side surface. The end of the upper beam plate is bent upward to form a bent portion, and the lower end surface of the bent portion on the side close to the door sill beam is higher than the upper side surface in the third direction.

2. The seat crossbeam connection structure according to claim 1, characterized in that: A first flange is formed on one side of the bent portion close to the door sill beam and extends along the second direction. The first flange is overlapped and fixed to the upper side surface.

3. The seat crossbeam connection structure according to claim 2, characterized in that: The bent portion is provided with a drawing protrusion extending along the second direction, and the drawing protrusion extends from a side of the bent portion away from the door sill beam to an end portion of the first flange.

4. The seat crossbeam connection structure according to claim 1, characterized in that: The end portion of the side beam plate extends along the first direction to form a second flange, and the second flange is attached to the inner side surface.

5. The seat crossbeam connection structure according to claim 4, characterized in that: The second flanges of the two side beam plates extend in opposite directions in the first direction.

6. The seat crossbeam connection structure according to claim 1, characterized in that: A wedge-shaped notch is provided at a connection between the upper beam plate and the side beam plate close to a side of the door sill beam.

7. The seat crossbeam connection structure according to any one of claims 1 to 6, characterized in that: The invention further comprises a reinforcement member, which is arranged on one side of the cross beam body along the first direction, a first side of the reinforcement member is connected to the sill beam, and a second side of the reinforcement member adjacent to the first side is connected to the cross beam body.

8. The seat crossbeam connection structure according to claim 7, characterized in that: The reinforcement includes a top plate and a side plate, the top plate is bent corresponding to the bent portion, a side of the top plate close to the door sill beam is overlapped on the upper side surface, and a side of the top plate close to the crossbeam body is overlapped and fixed to the upper beam plate; the side plate is surrounded below the top plate, a side of the side plate close to the door sill beam is abutted on the inner side surface, and a side of the top plate close to the crossbeam body is abutted on and fixed to the side beam plate.

9. The seat crossbeam connection structure according to claim 8, characterized in that: The upper beam plate and the side beam plate are integrally formed, and the top plate and the side plate are integrally formed.

10. A vehicle, characterized in that: It comprises the seat crossbeam connection structure as described in any one of claims 1-9.

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