Front floor assembly and vehicle

Abstract

The utility model discloses a front floor assembly and a vehicle, the front floor assembly comprises a front floor, a middle channel and a threshold beam, the middle channel and the threshold beam are respectively connected with the front floor, and the middle channel and the threshold beam are spaced along the transverse direction; the seat mounting beam is located above the front floor and comprises a first beam body and a second beam body, the first beam body and the second beam body are connected in a crossed mode, and the front portion of the first beam body and the rear portion of the second beam body are connected to the threshold beam in a spaced mode in the front-back direction; the front portion of the second beam body and the rear portion of the first beam body are connected to the middle channel in a spaced mode in the front-back direction. According to the front floor assembly, a stable triangular structure can be formed by arranging the seat mounting beam formed by connecting the first beam body and the second beam body in a crossed mode, stability is improved, meanwhile, the direct impact performance and the side impact performance are improved, the structure is compact, the bending resistance and torsion resistance of the whole vehicle can be improved, and then the comfort and durability of the vehicle are improved; and the user experience and comfort are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a front floor assembly and a vehicle with the front floor assembly. Background Art

[0002] In the existing front floor structure, the cross beam will partially bend and become unstable when subjected to force in the Y direction, and the longitudinal beam will also become unstable when subjected to force in the X direction. In addition, the rectangular structure formed by the intersection of the cross beam and the longitudinal beam is prone to deformation when the vehicle body is subjected to force, and there is still room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a front floor assembly, which can improve the frontal collision performance and side collision performance, improve the bending and torsion resistance of the whole vehicle, and has a simple structure and process and low cost.

[0004] According to the front floor assembly of the embodiment of the utility model, it includes: a front floor, a middle channel and a threshold beam, the middle channel and the threshold beam are respectively connected to the front floor, and the middle channel and the threshold beam are spaced apart in the lateral direction of the vehicle; a seat mounting beam, the seat mounting beam is located above the front floor, the seat mounting beam includes a first beam body and a second beam body, the first beam body is cross-connected with the second beam body, the front part of the first beam body and the rear part of the second beam body are spaced apart and connected to the threshold beam along the front-to-back direction, and the front part of the second beam body and the rear part of the first beam body are spaced apart and connected to the threshold beam along the front-to-back direction.

[0005] According to the front floor assembly of the embodiment of the utility model, a seat mounting beam is formed by setting a first beam body and a second beam body cross-connected to form a seat mounting beam, and the seat mounting beam is connected between the central channel and the door sill beam, so as to form a stable triangular structure, improve stability, and improve head-on collision performance to solve the problem of weak longitudinal force transmission of traditional seat mounting beams, and at the same time improve side collision performance to solve the problem of instability in lateral force transmission of traditional seat mounting beams, and the structure is compact, which can improve the strength of the front floor assembly, and further improve the bending and torsional resistance of the whole vehicle, thereby improving the comfort and durability of the vehicle, improving user experience and comfort, and the structure is simple and the cost is low.

[0006] According to the front floor assembly of some embodiments of the present invention, there are two threshold beams, and the two threshold beams are spaced apart and distributed on both sides of the central channel, and a seat mounting beam is provided between each threshold beam and the central channel.

[0007] According to the front floor assembly of some embodiments of the present invention, the angle between the front portion of the first beam body and the front portion of the second beam body is greater than the angle between the front portion of the first beam body and the rear portion of the second beam body.

[0008] According to the front floor assembly of some embodiments of the present invention, the angle between the front portion of the first beam body and the front portion of the second beam body is A1, and satisfies: 90°≤A1≤110°; and / or the angle between the front portion of the first beam body and the rear portion of the second beam body is A2, and satisfies: 70°≤A2≤90°.

[0009] According to the front floor assembly of some embodiments of the present invention, the following condition is satisfied: A1 and A2 are complementary.

[0010] According to the front floor assembly of some embodiments of the present invention, the first beam body is configured as a trough beam and is formed with a first reinforcement groove open toward the front floor; and / or the second beam body is configured as a trough beam and is formed with a second reinforcement groove open toward the front floor.

[0011] According to the front floor assembly of some embodiments of the present invention, at least one reinforcing rib is provided in the first reinforcing groove and / or the second reinforcing groove.

[0012] According to the front floor assembly of some embodiments of the present invention, the seat mounting beam also includes an outer connecting plate and an inner connecting plate; the front part of the first beam body and the rear part of the second beam body are both connected to the outer connecting plate and are connected to the inner side surface of the threshold beam through the outer connecting plate, and the front part of the second beam body and the rear part of the first beam body are both connected to the inner connecting plate and are connected to the outer side surface of the middle channel through the outer connecting plate.

[0013] According to some embodiments of the present invention, the front floor assembly further includes an underfloor longitudinal beam connected to the front floor, and an intersection of the first beam body and the second beam body overlaps with at least a portion of the underfloor longitudinal beam in a vertical projection.

[0014] The utility model also provides a vehicle.

[0015] The vehicle according to the embodiment of the utility model is provided with any of the above-mentioned front floor assemblies.

[0016] The advantages of the vehicle and the above-mentioned front floor assembly over the prior art are the same and will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a top view of a front floor assembly according to an embodiment of the utility model;

[0020] Figure 2 is a bottom view of a front floor assembly according to an embodiment of the utility model;

[0021] Figure 3 is a structural schematic diagram of a front floor assembly according to an embodiment of the utility model from another perspective;

[0022] Figure 4 is a top view of a seat mounting beam according to an embodiment of the utility model;

[0023] Figure 5 It is a bottom view of a seat mounting beam according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] Front floor assembly 100,

[0026] Front floor 1, center channel 2, door sill beam 3,

[0027] The seat mounting beam 4 , the first beam body 41 , the first reinforcing groove 411 , the second beam body 42 , the second reinforcing groove 421 , the seat mounting hole 43 , the reinforcing rib 44 , the outer connecting plate 45 , and the inner connecting plate 46 . DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than 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 a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, 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, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Unless otherwise specified, the front-to-back direction in the present application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0032] Reference below Figure 1-Figure 5 The front floor assembly 100 according to the embodiment of the utility model is described. The front floor assembly 100 can improve the head-on collision performance and the side collision performance, improve the bending and torsion resistance of the whole vehicle, and has a simple structure and process and low cost.

[0033] like Figure 1-Figure 5 As shown, the front floor assembly 100 according to the embodiment of the utility model includes: a front floor 1, a center channel 2, a door sill beam 3 and a seat mounting beam 4.

[0034] The middle channel 2 and the threshold beam 3 are respectively connected to the front floor 1, and the middle channel 2 and the threshold beam 3 are spaced apart in the transverse direction of the vehicle. Specifically, in actual design, the middle channel 2 and the threshold beam 3 can be respectively connected to the front floor 1 by welding, or connected by other connection methods such as bolt connection. Among them, the middle channel 2 is located in the middle part of the front floor assembly 100 in the transverse direction, there are two front floors 1 and they are respectively located on both sides of the middle channel 2, there are two seat mounting beams 4, and the two seat mounting beams 4 are respectively located above the two front floors 1, so as to facilitate the installation of seats on the left and right sides of the middle channel 2, respectively. The middle channel 2 and the threshold beam 3 both extend in the longitudinal direction of the vehicle and are spaced apart in parallel in the transverse direction, so as to form a space for installing the seat mounting beam 4 between the middle channel 2 and the threshold beam 3.

[0035] The seat mounting beam 4 is used to install the seat. The seat mounting beam 4 is located above the front floor 1. The seat mounting beam 4 includes a first beam body 41 and a second beam body 42. The first beam body 41 and the second beam body 42 are cross-connected. The front part of the first beam body 41 and the rear part of the second beam body 42 are spaced apart along the front-to-back direction and connected to the threshold beam 3. The front part of the second beam body 42 and the rear part of the first beam body 41 are spaced apart along the front-to-back direction and connected to the center channel 2.

[0036] That is, the first beam body 41 and the second beam body 42 are cross-connected and form a certain angle, that is, the first beam body 41 and the second beam body 42 are cross-connected to form an X-shaped structure. Among them, the front part of the first beam body 41 and the rear part of the second beam body 42 are located on one side and spaced apart in the front-to-back direction and can be connected to the door sill beam 3, and the front part of the second beam body 42 and the rear part of the first beam body 41 are located on one side and spaced apart in the front-to-back direction and can be connected to the middle channel 2. Therefore, one side of the seat mounting beam 4 is connected to the door sill beam 3, and the other side is connected to the middle channel 2, so as to be connected between the door sill beam 3 and the middle channel 2, and the first beam body 41 and the second beam body 42 are cross-connected to form a stable triangular structure with the door sill beam 3 and the middle channel 2, respectively, so as to improve the connection strength and stability of the front floor assembly 100.

[0037] Such arrangement can increase the path transmission of the frontal collision and side collision of the seat mounting beam 4. Specifically, on the one hand, when the front floor assembly 100 encounters a frontal collision along the longitudinal direction of the vehicle, the seat mounting beam 4, the door sill beam 3 and the central channel 2 can all participate in the longitudinal force transmission, and the first beam body 41 and the second beam body 42 of the seat mounting beam 4 form a certain angle with the longitudinal and transverse directions, that is, the longitudinal force borne by the seat mounting beam 4 can be decomposed along the longitudinal and transverse directions, so that the transmission of the longitudinal and transverse forces can be balanced to prevent the longitudinal force borne from being too large and causing damage to the seat mounting beam 4. At the same time, the stable triangular structure formed by the cross connection between the first beam body 41 and the second beam body 42 and the door sill beam 3 and the central channel 2 increases stability, which can greatly improve the stability of the seat mounting beam 4. The head-on collision performance and force transmission effect are improved, and the problem of weak longitudinal force transmission of the traditional seat mounting beam 4 is solved; on the other hand, when the front floor assembly 100 has a lateral collision along the lateral direction of the vehicle, while increasing the head-on collision effect, the lateral collision performance can be improved, and a part of the lateral force borne by the seat mounting beam 4 is decomposed in the longitudinal direction to prevent the lateral force from being too large and causing damage to the seat mounting beam 4. At the same time, the first beam body 41 and the second beam body 42 are superimposed and cross-connected to form a stable triangular structure between the threshold beam 3 and the middle channel 2, which increases stability and solves the problem of instability in force transmission of the traditional seat mounting beam 4 during a lateral collision.

[0038] In addition, the cross-multi-path seat mounting beam 4 structure formed by connecting the first beam body 41 and the second beam body 42 enables the four end parts of the seat mounting beam 4 structure to be connected to the central channel 2 and the threshold beam 3, thereby increasing the connection between the central channel 2 and the threshold beam 3, so that the front floor assembly 100 is compact in structure, and the strength of the front floor assembly 100 is improved, thereby improving the bending and torsion resistance of the whole vehicle, thereby improving the comfort and durability of the vehicle, improving the user experience and comfort, and increasing the service life of the vehicle. The front floor assembly 100 has a simple structure, and the seat mounting beam 4 can be formed by an integrated die-casting method, with simple parts and processes and low cost. Of course, in actual design, the seat mounting beam 4 can also be formed by sheet metal welding, or other forming methods, which are not limited to those described in this embodiment.

[0039] According to the front floor assembly 100 of the embodiment of the utility model, by setting a seat mounting beam 4 formed by cross-connecting the first beam body 41 and the second beam body 42, the seat mounting beam 4 is connected between the central channel 2 and the door sill beam 3, so as to form a stable triangular structure, improve stability, and improve head-on collision performance to solve the problem of weak longitudinal force transmission of the traditional seat mounting beam 4, and at the same time improve side collision performance to solve the problem of instability in lateral force transmission of the traditional seat mounting beam 4, and the structure is compact, which can improve the strength of the front floor assembly 100, and further improve the bending and torsional resistance of the whole vehicle, thereby improving the comfort and durability of the vehicle, improving user experience and comfort, and having a simple structure and low cost.

[0040] In some embodiments, there are two threshold beams 3 , and the two threshold beams 3 are spaced apart and distributed on both sides of the central channel 2 , and a seat mounting beam 4 is provided between each threshold beam 3 and the central channel 2 .

[0041] like Figure 1-Figure 3 As shown, the front floor assembly 100 is provided with two threshold beams 3, the two front floors 1 are respectively located on the left and right sides of the middle channel 2, and the two threshold beams 3 are respectively connected to the outer sides of the left and right front floors 1. In actual installation, the left and right threshold beams 3 are respectively installed on the left and right sides of the vehicle in the lateral direction. And a seat mounting beam 4 is provided between the left and right threshold beams 3 and the middle channel 2, that is, the left and right threshold beams 3 are connected to the middle middle channel 2 through the two seat mounting beams 4 to improve the connection strength and stability between the threshold beams 3 and the middle channel 2, and in actual installation, the main driver's seat and the co-driver's seat are respectively installed above the left and right seat mounting beams 4.

[0042] With such arrangement, when the front floor assembly 100 is subjected to longitudinal and lateral forces, both seat mounting beams 4 can withstand a certain force, and the lateral force and the longitudinal force can be decomposed, so that the seat mounting beams 4 can withstand a certain lateral force and longitudinal force at the same time, which can improve the force transmission stability and balance of the front floor assembly 100.

[0043] Specifically, when a lateral force to the left is generated, the seat mounting beam 4 between the left sill beam 3 and the middle channel can decompose the left lateral force, and then transfer it to the right seat mounting beam 4 for further decomposition, which can improve the connection strength and stability between the left sill beam 3 and the middle channel; similarly, when a lateral force to the right is generated, the seat mounting beam 4 between the right sill beam 3 and the middle channel can decompose the right lateral force, and then transfer it to the left seat mounting beam 4 for further decomposition, which can improve the connection strength and stability between the right sill beam 3 and the middle channel, thereby realizing multi-path transmission of the side collision of the seat mounting beam 4, improving the force transmission effect, and enhancing the side collision performance. Similarly, when a longitudinal force in the front-to-back direction is generated, the seat mounting beams 4 on both sides can decompose the longitudinal force at the same time, and at the same time improve the connection strength and stability of the two sill beams 3 and the middle channel, improve the force transmission effect, and improve the head-on collision performance.

[0044] In some embodiments, two seat mounting beams 4 are symmetrically distributed on both sides of the central channel 2 .

[0045] Specifically, Figure 1-Figure 3As shown, two seat mounting beams 4 are symmetrically distributed on the left and right sides of the central channel 2, and are both connected to the middle position of the door sill beam 3 and the central channel 2 in the length direction. This arrangement can improve the symmetry of the front floor assembly 100 and adapt to the specific installation position of the corresponding seat. At the same time, it can make the force uniform and further improve the connection strength and stability between the door sill beam 3 and the central channel.

[0046] In actual design, Figure 1 , Figure 4 and Figure 5 As shown, four seat mounting holes 43 are provided on the two seat mounting beams 4, and the four seat mounting holes 43 are located at the front of the first beam body 41, the rear of the first beam body 41, the front of the second beam body 42 and the rear of the second beam body 42. Therefore, the seat can be stably mounted on the seat mounting beam 4 by installing bolts, screws and other connecting parts in the seat mounting holes 43.

[0047] In some embodiments, an angle between a front portion of the first beam body 41 and a front portion of the second beam body 42 is greater than an angle between a front portion of the first beam body 41 and a rear portion of the second beam body 42 .

[0048] Specifically, Figure 1 and Figure 3 As shown, the front of the first beam body 41 and the rear of the second beam body 42 are connected to the threshold beam 3, and the front of the second beam body 42 and the rear of the first beam body 41 are connected to the middle channel 2, so that there are four symmetrically distributed connection points between the seat mounting beam 4 and the middle channel 2 and the threshold beam 3, which can increase the connection parts between the seat mounting beam 4 and the middle channel 2 and the threshold beam 3, making the structure compact. In addition, the angle between the front of the first beam body 41 and the front of the second beam body 42 is greater than the angle between the front of the first beam body 41 and the rear of the second beam body 42, so that the seat mounting beam 4 can absorb the collision force from the lateral direction to a greater extent, meet the side collision performance requirements, and at the same time adapt to the actual arrangement position of the seat.

[0049] It should be noted that the size of the angle can be reasonably adjusted according to the arrangement of the seats and the collision analysis results. The intersection of the first beam 41 and the second beam 42 can be located as close as possible to the middle of the threshold beam 3 and the middle channel to facilitate uniform force transmission and improve force transmission stability.

[0050] In some embodiments, the angle between the front portion of the first beam body 41 and the front portion of the second beam body 42 is A1, and satisfies: 90°≤A1≤110°, that is, A1 can be selected as 90°, 105°, 100°, 110° or other values ​​within its range, and / or, the angle between the front portion of the first beam body 41 and the rear portion of the second beam body 42 is A2, and satisfies: 70°≤A2≤90°, that is, A2 can be selected as 70°, 85°, 88°, 90° or other values ​​within its range.

[0051] By limiting the angle A1 between the front of the first beam body 41 and the front of the second beam body 42 and the angle A2 between the front of the first beam body 41 and the rear of the second beam body 42 within a certain range, the head-on collision performance and the side collision performance can be further improved, the force transmission stability can be improved, and the connection reliability between the sill beam 3 and the center channel 2 can be improved. It can be understood that the larger the angle A1 between the front of the first beam 41 and the front of the second beam 42, the larger the distance between the front of the first beam 41 and the front of the second beam 42, and the distance between the rear of the first beam 41 and the rear of the second beam 42. At the same time, the smaller the angle A2 between the front of the first beam 41 and the rear of the second beam 42, that is, the smaller the distance between the front of the first beam 41 and the rear of the second beam 42, and the distance between the front of the second beam 42 and the rear of the first beam 41, when the front floor assembly 100 is subjected to lateral force, the more force the seat mounting beam 4 decomposes in the lateral direction, and the less force decomposed in the longitudinal direction. Therefore, limiting A1 within the range of 90°≤A1≤110° and limiting A2 within the range of 70°≤A2≤90° can achieve the best side collision performance, and can also ensure the longitudinal side collision effect, and improve the force transmission stability and connection strength.

[0052] In actual design, the angle A1 between the front of the first beam body 41 and the front of the second beam body 42 can be selected to be 100°, and the angle A2 between the front of the first beam body 41 and the rear of the second beam body 42 can be selected to be 80°. Of course, the size of the angle A1 between the front of the first beam body 41 and the front of the second beam body 42 and the size of the angle A2 between the front of the first beam body 41 and the rear of the second beam body 42 can be flexibly adjusted according to the actual seat layout requirements and collision analysis results, and are not limited to what is described in this embodiment and shown in the figures.

[0053] In some embodiments, it satisfies: A1 and A2 are complementary.

[0054] That is, the sum of the angle A1 between the front part of the first beam body 41 and the front part of the second beam body 42 and the angle A2 between the front part of the first beam body 41 and the rear part of the second beam body 42 is 180°. When the angle A1 between the front part of the first beam body 41 and the front part of the second beam body 42 becomes smaller, the angle A2 between the front part of the first beam body 41 and the rear part of the second beam body 42 becomes larger accordingly. When the angle A1 between the front part of the first beam body 41 and the front part of the second beam body 42 becomes larger, the angle A2 between the front part of the first beam body 41 and the rear part of the second beam body 42 becomes smaller accordingly. In other words, no matter how the relative positions of the first beam body and the second beam body change, the sum of A1 and A2 is always 180°, the front and rear parts of the first beam body 41 and the front and rear parts of the second beam body 42 are always located on the same horizontal line without deformation, thereby ensuring the head-on collision performance and the side collision performance.

[0055] In some embodiments, the first beam body 41 is configured as a trough beam and is formed with a first reinforcement groove 411 open toward the front floor 1 , and / or the second beam body 42 is configured as a trough beam and is formed with a second reinforcement groove 421 open toward the front floor 1 .

[0056] Specifically, Figure 5 As shown, the first beam body 41 is constructed as a groove beam and is formed with an open first reinforcement groove 411, and the second beam body 42 is constructed as a groove beam and is formed with an open second reinforcement groove 421, and the middle of the first reinforcement groove 411 and the middle of the second reinforcement groove 421 are connected, thereby cross-connecting to form the seat mounting beam 4. When the seat mounting beam 4 is actually installed, as shown in FIG. Figure 1-Figure 3 As shown, the first reinforcement groove 411 and the second reinforcement groove 421 are both installed open toward the front floor 1, and the contact surfaces between the first beam body 41 and the second beam body 42 and the front floor 1 can be connected by welding. For example, the connection can be made by argon arc welding (TIG welding or MIG welding), and other welding methods can also be selected.

[0057] Among them, the first beam body 41 and the second beam body 42 are both constructed as groove-shaped beams, which is beneficial to reducing the gravity of the first beam body 41 and the second beam body 42 themselves, avoiding a significant increase in the weight of the vehicle body due to the setting of the seat mounting beam 4, and is beneficial to achieving a lightweight setting of the vehicle.

[0058] In some embodiments, at least one reinforcing rib 44 is provided in the first reinforcing groove 411 and / or the second reinforcing groove 421, that is, one, two, three or even more reinforcing ribs 44 may be provided in the first reinforcing groove 411 and / or the second reinforcing groove 421. By providing the reinforcing ribs 44, the stiffness and strength of the first beam body 41 and the second beam body 42 can be increased. The more the number of reinforcing ribs 44 provided, the higher the stiffness and strength of the first beam body 41 and the second beam body 42, thereby increasing the life of the seat mounting beam 4 and reducing the cost.

[0059] Specifically, Figure 5 As shown, inside the first reinforcement groove 411, the front part of the first beam body 41 and the rear part of the first beam body 41 are each provided with an X-shaped reinforcement rib 44 formed by cross connection, inside the second reinforcement groove 421, the front part of the second beam body 42 and the rear part of the second beam body 42 are each provided with an X-shaped reinforcement rib 44 formed by cross connection, and in the connecting area of ​​the first reinforcement groove 411 and the second reinforcement groove 421, there is also an X-shaped reinforcement rib 44 formed by cross connection, and a total of five X-shaped reinforcement ribs 44 are provided to support the inside of the seat mounting beam 4 to enhance the strength and strength of the seat mounting beam 4. In actual design, the thickness of the reinforcement rib 44 can be set to 2 mm, which can be flexibly adjusted according to actual needs.

[0060] It should be noted that the number of reinforcing ribs 44 is not limited to that described in this embodiment and shown in the figures, and can be flexibly adjusted according to actual needs and space size.

[0061] In some embodiments, the seat mounting beam 4 further includes an outer connecting plate 45 and an inner connecting plate 46. Figure 3-Figure 5 As shown, the left and right sides of the seat mounting beam 4 are outer connecting plates 45 and inner connecting plates 46 , wherein the outer connecting plate 45 is used to connect to the threshold beam 3 , and the inner connecting plate 46 is used to connect to the middle channel 2 .

[0062] The front part of the first beam body 41 and the rear part of the second beam body 42 are connected to the outer connecting plate 45 and are connected to the inner side surface of the door sill beam 3 through the outer connecting plate 45. The front part of the second beam body 42 and the rear part of the first beam body 41 are connected to the inner connecting plate 46 and are connected to the outer side surface of the central channel 2 through the outer connecting plate 45. That is, by arranging the outer connecting plate 45 and the inner connecting plate 46, the seat mounting beam 4 can be in surface contact with the door sill beam 3 and the central channel 2 respectively, which is beneficial to increase the contact area, and after welding and fixing, the overall connection is more stable.

[0063] Specifically, Figure 3 As shown, the front of the first beam body 41 and the rear of the second beam body 42 are connected to the inner side of the threshold beam 3 through the outer connecting plate 45, and the front of the second beam body 42 and the rear of the first beam body 41 are connected to the outer side of the middle channel 2 through the inner connecting plate 46. The inner connecting plate 46 can be connected to the outer side of the middle channel 2 by flow drilling or riveting, or by other connecting methods such as welding. In the actual specific design, the cross-sectional width of the first beam body 41 and the second beam body 42 can be set to 150mm, which can be flexibly adjusted according to the collision analysis results, the thickness of the outer connecting plate 45 can be set to 4mm, and the surface thickness of the seat mounting beam 4 is 4mm, which can be flexibly adjusted according to actual needs and are not limited to those described in this embodiment.

[0064] In some embodiments, the front floor assembly 100 further includes an underfloor longitudinal beam connected to the front floor 1 , and the intersection of the first beam body 41 and the second beam body 42 overlaps with at least a portion of the underfloor longitudinal beam in a vertical projection.

[0065] That is to say, the front floor 1 is also provided with an underfloor longitudinal beam, which can extend longitudinally and be separated from the door sill beam 3 and the middle channel 2 in the transverse direction, and is located between the door sill beam 3 and the middle channel 2 and below the seat mounting beam 4, and is connected to the front floor 1 and the seat mounting beam 4. It can be connected to the front floor 1 by welding or the like, and the underfloor longitudinal beam is located directly below the intersection of the first beam body 41 and the second beam body 42, that is, the underfloor longitudinal beam overlaps with at least part of the seat mounting beam 4 in the up and down direction, thereby, a double-layer reinforced structure can be formed, and the two reinforce each other, thereby further improving the strength and rigidity of the front floor assembly 100, as well as the head-on collision performance, and improving the comfort and durability of the vehicle.

[0066] Among them, the longitudinal beam under the floor is detachably connected to the seat mounting beam 4, which is conducive to the installation of the seat mounting beam 4. When the seat mounting beam 4 is damaged, it is convenient to disassemble and repair. It is flexible and convenient. In the actual design, the connecting parts can be selected as screws or bolts, that is, the longitudinal beam under the floor and the seat mounting beam 4 are connected by screws or bolts, and other connection methods can also be selected.

[0067] The utility model also provides a vehicle.

[0068] The vehicle according to the embodiment of the utility model is provided with a front floor assembly 100 of any one of the above-mentioned embodiments. The front floor assembly 100 is arranged at the front part of the vehicle body frame, and is a sheet metal structure under the feet of the driver and the co-driver. The main driver's seat and the co-driver's seat are installed above the front floor assembly 100. By setting a seat mounting beam 4 formed by the cross connection of the first beam body 41 and the second beam body 42, the seat mounting beam 4 is connected between the middle channel 2 and the threshold beam 3, and a stable triangular structure can be formed to improve stability and improve the frontal collision performance to solve the problem of weak longitudinal force transmission of the traditional seat mounting beam 4, and at the same time improve the side collision performance to solve the problem of instability of lateral force transmission of the traditional seat mounting beam 4. The structure is compact, and the strength of the front floor assembly 100 can be improved, and then the anti-bending and anti-torsion performance of the whole vehicle can be improved, and then the comfort and durability of the vehicle can be improved, and the user experience and comfort can be improved. The structure is simple and the cost is low.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A front floor assembly, characterized in that: include: The front floor, the middle passage and the sill beam, the middle passage and the sill beam are respectively connected to the front floor, and the middle passage and the sill beam are spaced laterally from the sill beam; A seat mounting beam, the seat mounting beam is located above the front floor, the seat mounting beam includes a first beam body and a second beam body, the first beam body is cross-connected with the second beam body, the front portion of the first beam body and the rear portion of the second beam body are spaced apart along the front-to-back direction and connected to the threshold beam, and the front portion of the second beam body and the rear portion of the first beam body are spaced apart along the front-to-back direction and connected to the center channel.

2. The front floor assembly of claim 1, characterized in that The sill beams are two, and the two sill beams are spaced apart from both sides of the middle passage, and a seat mounting beam is provided between each of the sill beams and the middle passage.

3. The front floor assembly of claim 1, characterized in that The angle between the front portion of the first beam body and the front portion of the second beam body is greater than the angle between the front portion of the first beam body and the rear portion of the second beam body.

4. The front floor assembly of claim 3, characterized in that The angle between the front part of the first beam body and the front part of the second beam body is A1, and satisfies: 90°≤A1≤110°; And / or, the angle between the front part of the first beam body and the rear part of the second beam body is A2, and satisfies: 70°≤A2≤90°.

5. The front floor assembly of claim 4, characterized in that Satisfies: A1 and A2 are complementary.

6. The front floor assembly of claim 1, characterized in that The first beam body is constructed as a groove-shaped beam and is formed with a first reinforcement groove open to the front floor; And / or, the second beam body is configured as a groove-shaped beam and is formed with a second reinforcement groove open toward the front floor.

7. The front floor assembly of claim 6, characterized in that The first reinforcement groove and / or the second reinforcement groove are provided with at least one reinforcement rib.

8. The front floor assembly of claim 1, characterized in that The seat mounting beam further includes an outer connecting plate and an inner connecting plate; The front portion of the first beam body and the rear portion of the second beam body are both connected to the outer connecting plate and are connected to the inner side surface of the door sill beam through the outer connecting plate, and the front portion of the second beam body and the rear portion of the first beam body are both connected to the inner connecting plate and are connected to the outer side surface of the central channel through the outer connecting plate.

9. The front floor assembly according to any one of claims 1-3, characterized in that It also includes a floor longitudinal beam, which is connected to the front floor, and the intersection of the first beam body and the second beam body overlaps with at least a part of the floor longitudinal beam in the vertical projection.

10. A vehicle, characterized in that: The front floor assembly according to any one of claims 1-9 is provided.

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