Front floor structure and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, and provides a front floor structure and a vehicle. The front floor structure comprises threshold beams arranged on the left side and the right side respectively, a front floor panel located between the threshold beams on the two sides, and a seat cross beam located below the front floor panel. The seat cross beam is connected between the threshold beams on the two sides, and a seat installation support corresponding to the seat cross beam up and down is connected to the upper portion of the front floor panel. According to the front floor structure, the seat cross beam is arranged below the front panel floor, the influence of arrangement of wiring harnesses, an air conditioner air duct and the like in a vehicle cabin on the seat cross beam and the influence of connection of the seat cross beam, a threshold beam and other vehicle body structures do not need to be considered, and the structural integrity of the seat cross beam can be guaranteed. And meanwhile, the connecting strength of the seat cross beam and the threshold beam is improved, the force transmission efficiency between the seat cross beam, the threshold beam and other vehicle body structures is guaranteed, and therefore the safety of vehicle collision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle body structure, especially relates to a front floor structure. BACKGROUND

[0002] In the field of modern automobile design and manufacture, the optimization of vehicle body structure is a key factor to improve vehicle performance and safety. Especially for passenger cars, the front floor structure, as an important part of the vehicle body bottom structure, not only bears the bottom support function of the passenger compartment, but also needs to consider the complex requirements of protecting passengers, arranging wire harnesses, air ducts and various accessories. In the traditional design of the front floor structure, the seat cross beam is often directly fixed on the front floor panel, and a seat mounting bracket for mounting the vehicle seat is directly arranged on the seat cross beam.

[0003] Such a layout is convenient for the installation and fixation of the seat, but the wire harnesses in the vehicle cabin pass through the seat cross beam, and a threading hole or a notch for accommodating the wire harnesses is arranged on the seat cross beam. At the same time, since the middle area of the cabin needs to be provided with a rear air duct to ensure that the cold air of the air conditioner can be delivered to the rear seats, a duct through hole needs to be designed on the seat cross beam. The large-area hole structure of the threading hole, the duct through hole and the like arranged on the seat cross beam will not only affect the structural strength of the seat cross beam, the connection strength between the seat cross beam and the rocker beam, and the force transmission efficiency therebetween, but also the positions of the threading hole, the notch and the duct through hole are easy to become bending points during the collision, thereby affecting the safety of vehicle collision. SUMMARY

[0004] Therefore, the utility model aims at providing a front floor structure to improve the safety of vehicle collision.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A front floor structure comprises rocker beams arranged on the left and right sides, a front floor panel located between the rocker beams on the left and right sides, and a seat cross beam located below the front floor panel.

[0007] The seat cross beam is connected between the rocker beams on the left and right sides and is connected above the front floor panel with a seat mounting bracket arranged in correspondence with the seat cross beam.

[0008] Further, the seat cross beam is a through structure extending from one rocker beam to the other rocker beam.

[0009] Further, the cross sections of the seat cross beam at different positions in the length direction are the same.

[0010] Further, the seat cross beam is connected with the front floor panel, and a cavity is formed between the seat cross beam and the front floor panel and arranged along the left-right direction of the vehicle.

[0011] Further, the seat cross beam is connected with the front floor panel, and a cavity is formed between the seat cross beam and the front floor panel and arranged along the left-right direction of the vehicle.

[0012] Further, the seat cross beam is connected with the front floor panel, and a cavity is formed between the seat cross beam and the front floor panel and arranged along the left-right direction of the vehicle.

[0013] Further, the seat cross beam is connected with the front floor panel, and a cavity is formed between the seat cross beam and the front floor panel and arranged along the left-right direction of the vehicle.

[0014] Further, the seat cross beam is connected with the front floor panel, and a cavity is formed between the seat cross beam and the front floor panel and arranged along the left-right direction of the vehicle.

[0015] Further, the seat cross beam is connected with the front floor panel, and a cavity is formed between the seat cross beam and the front floor panel and arranged along the left-right direction of the vehicle.

[0016] Compared with the prior art, the utility model has following advantages:

[0017] The front floor structure has the advantages that the seat cross beam is arranged below the front panel floor, the influence of the arrangement of wire harness and air conditioner air duct in the vehicle cabin on the structure of the seat cross beam is not considered, the structural integrity of the seat cross beam is ensured, the bending point is avoided in the vehicle body collision, the influence of the wire harness and the air conditioner air duct on the connection of the seat cross beam and the surrounding rocker beam and other vehicle body structures is reduced, the connection strength of the seat cross beam and the surrounding components such as the rocker beam is improved, the force transmission efficiency between the seat cross beam and the rocker beam and other vehicle body structures is ensured, and the safety of the vehicle collision is improved.

[0018] In addition, the seat cross beam is of a through structure, facilitating the preparation and molding of the seat cross beam, and meanwhile capable of ensuring the coherence of the transverse force transmission channel formed by the seat cross beam and improving the transmission effect of the collision force. The cross sections of each position of the seat cross beam in the length direction are the same, so as to constitute an equal cross section structure, facilitating the design and preparation and molding of the seat cross beam while ensuring the structural strength of the seat cross beam, and reducing the production cost to a certain extent. The seat cross beam and the front floor panel form a cavity, so as to increase the stability of the seat cross beam arranged at the front floor position, and utilize the characteristics of the cavity structure with high strength to increase the strength and rigidity of the seat cross beam position.

[0019] In addition, the seat cross beam is of a through structure, facilitating the preparation and molding of the seat cross beam, and meanwhile capable of ensuring the coherence of the transverse force transmission channel formed by the seat cross beam and improving the transmission effect of the collision force. The cross sections of each position of the seat cross beam in the length direction are the same, so as to constitute an equal cross section structure, facilitating the design and preparation and molding of the seat cross beam while ensuring the structural strength of the seat cross beam, and reducing the production cost to a certain extent. The seat cross beam and the front floor panel form a cavity, so as to increase the stability of the seat cross beam arranged at the front floor position, and utilize the characteristics of the cavity structure with high strength to increase the strength and rigidity of the seat cross beam position.

[0020] In addition, the seat cross beam is of a through structure, facilitating the preparation and molding of the seat cross beam, and meanwhile capable of ensuring the coherence of the transverse force transmission channel formed by the seat cross beam and improving the transmission effect of the collision force. The cross sections of each position of the seat cross beam in the length direction are the same, so as to constitute an equal cross section structure, facilitating the design and preparation and molding of the seat cross beam while ensuring the structural strength of the seat cross beam, and reducing the production cost to a certain extent. The seat cross beam and the front floor panel form a cavity, so as to increase the stability of the seat cross beam arranged at the front floor position, and utilize the characteristics of the cavity structure with high strength to increase the strength and rigidity of the seat cross beam position.

[0021] Another purpose of the utility model lies in providing a vehicle, the vehicle body of which is provided with the front floor structure.

[0022] Compared with the prior art, the vehicle and the front floor structure have the same technical effects, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute an improper limitation on the utility model. In the drawings:

[0024] Figure 1 The whole structure schematic view of the front floor structure of the utility model embodiment;

[0025] Figure 2A structure schematic view of the front floor structure from another view angle according to an embodiment of the present application is shown in the figure;

[0026] Figure 3 A structure schematic view of the seat cross beam according to an embodiment of the present application is shown in the figure;

[0027] Figure 4 A schematic view of the front floor structure when the front floor panel is omitted according to an embodiment of the present application is shown in the figure;

[0028] Explanation of reference signs:

[0029] 1, threshold beam;

[0030] 2, front floor panel;

[0031] 3, seat cross beam;

[0032] 3a, front cross beam; 3b, rear cross beam; 301, connecting flange; 302, bottom lap edge; 303, side lap edge;

[0033] 4, seat mounting bracket;

[0034] 5, middle channel. DETAILED DESCRIPTION

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, specific details are set forth in order to provide a thorough understanding of embodiments of the application. However, persons of ordinary skill in the art will readily recognize that embodiments of the application can be practiced without these specific details. In other instances, well-known structures, devices, circuits, and processes have not been described in detail so as not to unnecessarily obscure aspects of the application.

[0037] In the description of the present application, it should be noted that if terms indicating orientation or position relationship such as "upper", "lower", "inner", "outer" and the like appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second" and the like appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] Furthermore, in the description of the utility model, unless otherwise explicitly limited, the connecting structure of the components in the art is connected. Moreover, the terms "mounting", "connection", "connection" and "connector" should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0039] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0040] Embodiment one

[0041] This embodiment relates to a front floor structure, as a whole, as shown in Figure 1 , Figure 2 , this embodiment includes the rocker 1 arranged in the left and right sides, the front floor panel 2 between the two sides rocker 1 and the seat crossbeam 3 below the front floor panel 2.

[0042] Among them, the seat crossbeam 3 is connected between the two sides rocker 1, and the seat mounting bracket 4 corresponding to the seat crossbeam 3 is arranged above the front floor panel 2.

[0043] At this time, as above, by arranging the seat crossbeam 3 below the front panel floor, this embodiment can not consider the influence of the arrangement of wire harness and air conditioning duct in the vehicle cabin on the structure of the seat crossbeam 3 itself, which helps to ensure the structural integrity of the seat crossbeam 3 itself and avoid the bending point when the vehicle body is collided. At the same time, it can also reduce the influence of wire harness and air conditioning duct on the connection of seat crossbeam 3 and surrounding rocker 1 and other vehicle body structure, which is beneficial to improve the connection strength of seat crossbeam 3 and surrounding components such as rocker 1, and ensure the force transmission efficiency between seat crossbeam 3 and rocker 1 and other vehicle body structure.

[0044] Based on the above overall introduction, specifically, the seat crossbeam 3 of the embodiment is arranged at the bottom of the front floor panel 2, and does not need to avoid the upper convex structure of the middle channel 5 and other interior components, avoiding the arrangement of avoiding features such as avoiding holes on the seat crossbeam 3, improving the structural integrity of the seat crossbeam 3.

[0045] Meanwhile, since the seat cross beam 3 is located below the front floor panel 2, the occupation of the interior space of the vehicle cabin is reduced, the arrangement and direction of the wire harness and the air conditioning duct are optimized, and the utilization rate of the vehicle cabin space is improved, so as to facilitate the design of the vehicle cabin function and the storage space, and improve the riding comfort of the passengers. Moreover, the seat mounting bracket 4 is arranged above the seat cross beam 3, so that the seat cross beam 3 can effectively support the vehicle seat mounted on the seat mounting bracket 4.

[0046] As a specific implementation form, as shown in Figure 2 , Figure 3 , the seat cross beam 3 of the embodiment is a through structure extending from one side rocker beam 1 to the other side rocker beam 1. By arranging the seat cross beam 3 in a through structure, the lightweight design of the vehicle is facilitated, and the preparation and molding of the seat cross beam 3 are facilitated. Meanwhile, a continuous transverse force transmission channel is formed between the two rocker beams 1, which ensures the continuity of the transverse force transmission channel. In the event of a collision, the two rocker beams 1 can be effectively supported, thereby improving the transmission effect of the vehicle collision force, especially the side collision force, to improve the safety of the vehicle collision.

[0047] Specifically, the cross sections of the seat cross beam 3 at different positions in the length direction are the same, and the cross section size of the seat cross beam 3 remains unchanged in the extension direction, which makes the design process of the seat cross beam 3 relatively simple and does not need to consider the complex calculation caused by the cross section change. Meanwhile, since the cross section areas of the seat cross beam 3 are the same, the production difficulty of the seat cross beam 3 is low, and the production steps of the processing and molding are simple, thereby reducing the production cost. Therefore, the seat cross beam 3 of the embodiment adopts an equal cross section structure, which can further facilitate the design and preparation and molding of the seat cross beam 3 while ensuring the structural strength of the seat cross beam 3, and reduce the production cost to a certain extent.

[0048] In addition, the seat cross beam 3 of the embodiment is connected with the front floor panel 2, and a cavity arranged along the left-right direction of the whole vehicle is formed between the seat cross beam 3 and the front floor panel 2. By connecting the seat cross beam 3 and the front floor panel 2, the stability of the seat cross beam 3 arranged on the front floor panel 2 is improved. Meanwhile, the seat cross beam 3 and the front floor panel 2 form a cavity structure, which further simplifies the structure of the seat cross beam 3, so that the seat cross beam 3 and the front floor panel 2 form the above-mentioned through structure together, which is beneficial to the lightweight design of the vehicle, and the cavity structure has high strength, which can increase the strength and rigidity of the position of the seat cross beam 3, thereby further improving the safety of the vehicle collision.

[0049] In a specific implementation, the seat crossbeam 3 of this embodiment can be stamped, for example, and specifically includes a bottom wall and side walls located on both sides of the bottom wall and connected to the front floor panel 2. The side walls can be vertically arranged, or they can be inclined, so that the cavity formed by the seat crossbeam 3 and the front floor panel 2 has a trapezoidal cross section. Therefore, when the vehicle is subjected to a collision and the seat crossbeam 3 tends to bend in the forward / backward direction, the inclined side walls, compared to side walls perpendicular to the front floor panel 2, give the seat crossbeam 3 better resistance to bending, thereby improving the structural strength of the seat crossbeam 3.

[0050] In order to improve the connection strength between the seat crossbeam 3 and the front floor panel 2, the seat crossbeam 3 in this embodiment is provided with connecting flanges 301 on both the front and rear sides, and the seat crossbeam 3 is connected to the front floor panel 2 through the connecting flanges 301 on both sides.

[0051] Understandably, when a vehicle collision causes the seat crossbeam 3 to bend, the seat crossbeam 3 and the front floor panel 2 are easily separated due to external forces, resulting in damage to the cavity structure formed by the seat crossbeam 3 and the front floor panel 2. Therefore, by providing connecting flanges 301 on the front and rear sides of the seat crossbeam 3, the contact area between the seat crossbeam 3 and the front floor panel 2 is increased, thereby improving the connection strength between the seat crossbeam 3 and the front floor panel 2, ensuring the supporting effect of the seat crossbeam 3 on the sill beam 1, and improving the safety of the vehicle in a collision.

[0052] Meanwhile, due to the design of the connecting flange 301, the seat crossbeam 3 has a "U"-shaped structure. The connecting flange 301 itself can serve as a reinforcing structure, supporting the two sill beams 1 in the event of a side collision, and further improving the overall structural strength of the seat crossbeam 3. Furthermore, the large area of ​​the connecting flange 301 facilitates the connection between the seat crossbeam 3 and the front floor panel 2.

[0053] To improve the connection strength between the seat crossbeam 3 and the sill beam 1, the seat crossbeam 3 in this embodiment has outwardly extending overlapping edges at both ends. The seat crossbeam 3 is connected to the sill beams 1 on both sides through the overlapping edges, and the overlapping edges at each end include a bottom overlapping edge 302 that overlaps and connects to the bottom of the sill beam 1. By setting the overlapping edges, the connection area between the ends of the seat crossbeam 3 and the sill beam 1 is increased, which facilitates the connection operation between the crossbeam and the sill beam 1 while improving the connection strength between the seat crossbeam 3 and the sill beam 1, thus preventing the seat crossbeam 3 from detaching from the sill beam 1 in the event of a vehicle collision.

[0054] Meanwhile, the lap joint edge of the embodiment further comprises a side lap joint edge 303 connected to the side of the rocker beam 1, so that the end of the seat cross beam 3 can be connected to the side of the rocker beam 1 towards the vehicle body, thereby increasing the connection points between the seat cross beam 3 and the rocker beam 1, and further improving the connection strength between the seat cross beam 3 and the rocker beam 1. In specific implementation, the bottom lap joint edge 302, the side lap joint edge 303 and the connecting flange 301 of the embodiment are connected to each other, so as to improve the structural strength of the bottom lap joint edge 302, the side lap joint edge 303 and the connecting flange 301 themselves, and meanwhile, the integrity of the seat cross beam 3 itself can be improved.

[0055] In the embodiment, as a specific implementation form, the seat mounting bracket 4 is in a box type structure, and a cavity is formed between the seat mounting bracket 4 and the front floor panel 2, and a seat mounting point is arranged at the top of the seat mounting bracket 4. The seat mounting bracket 4 adopts a box type structure, so as to ensure the structural strength of the seat mounting bracket 4 itself. Meanwhile, the cavity is formed between the seat mounting bracket 4 and the front floor panel 2, and the cavity structure strength can be utilized to increase the strength and rigidity of the seat mounting position, so as to ensure the stability of the vehicle seat installation.

[0056] In specific implementation, the seat mounting point of the embodiment can be an installation hole arranged at the top of the seat mounting bracket 4, and a projection welding nut is arranged in the corresponding safety hole, so as to facilitate the installation of the vehicle seat through screwing, thereby ensuring the stability of the vehicle seat installation. Of course, the seat mounting point of the embodiment can also adopt other structure forms, which can effectively install and fix the vehicle seat.

[0057] In addition, the seat mounting bracket 4 of the embodiment is arranged in multiple along the left-right direction of the whole vehicle, and a gap is left between at least one side rocker beam 1 and the seat mounting bracket 4. The seat mounting bracket 4 is in multiple, so as to facilitate the installation and arrangement of the vehicle seat. Meanwhile, the gap between the seat mounting bracket 4 and the rocker beam 1 facilitates the arrangement of the wire harness and the air conditioning air duct. Specifically, the flange is formed on each seat mounting bracket 4 of the embodiment, and the seat mounting bracket 4 close to the inner side of the vehicle cabin is connected to the center channel 5 through the flange, and the seat mounting bracket 4 close to the outer side of the vehicle body is connected to the front panel floor through the flange, so as to ensure the fixing effect of the seat mounting bracket 4. In specific implementation, the air conditioning air duct can be arranged between the two seat mounting brackets 4 along the front-rear direction of the vehicle, so as to ensure the smoothness of the air conditioning air duct, and the wire harness is arranged in the gap between the rocker beam 1 and the seat mounting bracket 4.

[0058] Finally, as shown in FIG. 6, the seat cross beam 3 is connected to the rocker beam 1 through the seat mounting bracket 4, and the seat cross beam 3 is connected to the front floor panel 2 through the seat mounting bracket 4. Figure 2 , Figure 4As shown, in the embodiment, the seat cross beam 3 comprises a front cross beam 3a and a rear cross beam 3b arranged at intervals along the front-rear direction of the whole vehicle, and the seat mounting bracket 4 is arranged corresponding to the front cross beam 3a and the rear cross beam 3b. Through the interval arrangement of the front cross beam 3a and the rear cross beam 3b, firstly, the number of the seat cross beam 3 is increased, the transverse supporting effect of the two rocker beams 1 is improved, the transverse force transmission channel of the front floor position is increased, and the front cross beam 3a, the rear cross beam 3b and the two rocker beams 1 can form a frame structure, which can better increase the structural strength of the front floor panel 2 position. At the same time, it is also convenient for the installation of the vehicle seat, and the reliability of the vehicle seat installation is increased.

[0059] In summary, the front floor structure of the embodiment, by arranging the seat cross beam 3 below the front panel floor, can avoid the influence of the arrangement of the wire harness and the air conditioning duct in the vehicle cabin on the structure of the seat cross beam 3 itself, help to ensure the structural integrity of the seat cross beam 3 itself, avoid the bending point in the vehicle body collision. At the same time, it reduces the influence of the wire harness and the air conditioning duct on the connection of the seat cross beam 3 and the surrounding rocker beam 1 and other vehicle body structures, is beneficial to improve the connection strength of the seat cross beam 3 and the surrounding components such as the rocker beam 1, and ensures the force transmission efficiency between the seat cross beam 3 and the rocker beam 1 and other vehicle body structures, thereby improving the safety of the vehicle collision, and has good practicability.

[0060] Embodiment two

[0061] The embodiment relates to a vehicle, and the vehicle is provided with the front floor structure in the embodiment one.

[0062] The vehicle of the embodiment sets the seat cross beam 3 at the bottom of the front floor panel 2 through the arrangement of the above-mentioned front floor structure, which can effectively support the front floor panel 2 and the vehicle seat thereon while avoiding the wire harness, the air conditioning duct and other vehicle body and interior structure in the vehicle cabin, thereby improving the connection strength between the seat cross beam 3 and the rocker beam 1 and other vehicle body structures, ensuring the force transmission efficiency, thereby improving the collision safety of the vehicle, and improving the use quality of the whole vehicle.

[0063] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A front floor structure, characterized in that: it comprises a rocker beam (1) arranged on each of the left and right sides, a front floor panel (2) arranged between the rocker beams (1) on the left and right sides, and a seat cross beam (3) arranged below the front floor panel (2); the seat cross beam (3) is connected between the rocker beams (1) on the left and right sides, and a seat mounting bracket (4) corresponding to the seat cross beam (3) is arranged above the front floor panel (2).

2. The front floor structure according to claim 1, characterized in that: the seat cross beam (3) is in a through structure extending from one rocker beam (1) to the other rocker beam (1).

3. The front floor structure according to claim 2, characterized in that: the seat cross beam (3) has the same cross section at each position in the length direction.

4. The front floor structure according to claim 1, characterized in that: the seat cross beam (3) is connected with the front floor panel (2), and a cavity is formed between the seat cross beam (3) and the front floor panel (2) and arranged along the left-right direction of the vehicle.

5. The front floor structure according to claim 4, characterized in that: the seat cross beam (3) is provided with a connecting flange (301) on each of the front and rear sides, and the seat cross beam (3) is connected with the front floor panel (2) through the connecting flanges (301) on the left and right sides.

6. The front floor structure according to claim 1, characterized in that: the seat cross beam (3) is provided with an overlapping edge extending outward at each of the left and right ends; the seat cross beam (3) is connected with the rocker beams (1) on the left and right sides through the overlapping edges, and the overlapping edge at each end comprises a bottom overlapping edge (302) overlapping and connected with the bottom of the rocker beam (1), and / or a side overlapping edge (303) overlapping and connected with the side of the rocker beam (1).

7. The front floor structure according to claim 1, characterized in that: the seat mounting bracket (4) is in a box-shaped structure, and a cavity is formed between the seat mounting bracket (4) and the front floor panel (2), and a seat mounting point is arranged on the top of the seat mounting bracket (4).

8. The front floor structure according to claim 7, characterized in that: the seat mounting bracket (4) is arranged in a plurality of intervals along the left-right direction of the vehicle, and a gap is left between at least one of the rocker beams (1) and the seat mounting bracket (4).

9. The front floor structure according to any one of claims 1 to 8, characterized in that: the seat cross beam (3) comprises a front cross beam (3a) and a rear cross beam (3b) arranged in intervals along the front-rear direction of the vehicle, and the seat mounting bracket (4) is arranged corresponding to the front cross beam (3a) and the rear cross beam (3b).

10. A vehicle, characterized in that: the vehicle body is provided with the front floor structure according to any one of claims 1 to 9. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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