Universal automobile front floor assembly

Abstract

The present invention relates to the field of front floors, and specifically to a universal automobile front floor assembly, comprising a front floor, wherein the height of the front end of the front floor from the ground is less than the height of the rear end of the front floor from the ground; the present invention discloses a universal automobile front floor assembly, which optimizes the overall structure of the front floor so that the front floor is lower at the front and higher at the rear, and a gap is reserved under the rear end of the front floor, thereby facilitating the subsequent arrangement of a battery pack and avoiding a reduction in the ground clearance of the vehicle caused by the installation of the battery pack.

Description

Technical Field

[0001] The invention relates to the field of front floors, in particular to a universal automobile front floor assembly. Background Art

[0002] With the development of the global economy and the upgrading of consumption, energy consumption is increasing, and the requirements for environmental protection and energy conservation are becoming more and more stringent. Under this premise, new energy vehicles have come into being, especially hybrid vehicles and pure electric vehicles. As the country vigorously advocates low emissions and clean energy, they are becoming increasingly popular, and technology is constantly upgrading. Hybrid models have the advantages of high fuel efficiency, low fuel consumption, low carbon emissions, and long driving range, and have become a key research and development project for major OEMs.

[0003] In order to ensure that the production cost of the vehicle is reduced, a front floor assembly that can be applied to both hybrid and pure electric models is now needed. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a front floor assembly that can be applied to both hybrid and pure electric vehicles.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A universal automobile front floor assembly comprises a front floor, wherein the height of the front end of the front floor from the ground is smaller than the height of the rear end of the front floor from the ground.

[0007] The front floor comprises a left floor and a right floor, and the left floor is connected to the right floor through a central channel.

[0008] A seat frame assembly is arranged on the front floor; the seat frame assembly comprises a seat crossbeam arranged on the front floor, and one end of the seat crossbeam overlaps and fits with the side surface of the central channel.

[0009] Each of the seat cross beams is connected to a seat via a seat bracket; the seat brackets are distributed at the ends of the seat cross beams.

[0010] The front floor is provided with a positioning groove for limiting the position of the seat crossbeam.

[0011] A front floor longitudinal beam assembly is provided on the front floor; the front floor longitudinal beam assembly and the seat cross beam assembly are distributed on two opposite sides of the front floor; the front floor longitudinal beam assembly includes a floor longitudinal beam provided on the front floor; the floor longitudinal beam is connected to the battery pack.

[0012] The floor longitudinal beam is provided with a nut plate in the area where it connects to the battery pack; and the floor longitudinal beam is provided with an avoidance groove.

[0013] The front floor is provided with a connecting plate, and the connecting plate and the front floor longitudinal beam assembly are distributed on the same side of the front floor; the side surface of the connecting plate overlaps the side surface of the adjacent floor longitudinal beam.

[0014] A cover plate assembly is also provided on the front floor, and the cover plate assembly and the front floor longitudinal beam assembly are distributed on two opposite sides of the front floor; the cover plate assembly includes a front longitudinal beam upper cover plate provided on the front floor; the end of the front longitudinal beam upper cover plate overlaps the side of the seat cross beam; and the end of the front longitudinal beam upper cover plate intersects with the horizontal projection of the end of the front floor longitudinal beam.

[0015] The vertical cross sections of the seat cross beam and the floor longitudinal beam are in a "X" shape; reinforcing ribs are arranged inside the seat cross beam and the floor longitudinal beam.

[0016] The advantages of the present invention are:

[0017] The present invention discloses a universal automobile front floor assembly. The present invention optimizes the overall structure of the front floor so that the front floor is low at the front and high at the rear, and a gap is reserved below the rear end of the front floor, thereby facilitating the subsequent arrangement of a battery pack and avoiding a reduction in the vehicle ground clearance caused by the installation of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0019] Figure 1 This is a front view structure of the front floor assembly of the present invention;

[0020] Figure 2 This is a top view structure of the front floor assembly of the present invention;

[0021] Figure 3 For the present invention Figure 1 The front floor structure at the middle AA section;

[0022] Figure 4 For the present invention Figure 2 Front floor structure at the middle BB section;

[0023] Figure 5 For the present invention Figure 2 The battery pack mounting beam structure at the middle CC section;

[0024] Figure 6 For the present invention Figure 2 Middle DD section and strengthening structure;

[0025] Figure 7 For the present invention Figure 1 Seat mounting structure at the middle EE section;

[0026] Figure 8 is a three-dimensional diagram of the front floor assembly of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the front floor assembly of the present invention connected with an exhaust pipe;

[0028] Fig.10 It is a schematic diagram of the structure of the front floor assembly of the present invention connected with the exhaust pipe and the battery pack.

[0029] The marks in the above figure are:

[0030] 1. Front floor, 2. Seat frame assembly, 3. Cover assembly, 4. Middle channel, 5. Front floor longitudinal beam assembly, 6. Connecting plate. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0032] A universal automobile front floor assembly comprises a front floor 1, wherein the height of the front end of the front floor from the ground is less than the height of the rear end of the front floor from the ground; the present invention discloses a universal automobile front floor assembly 1, which optimizes the overall structure of the front floor 1 so that the front floor 1 is lower at the front and higher at the rear, and a gap is reserved under the rear end of the front floor 1, thereby facilitating the subsequent arrangement of a battery pack 5-3 and avoiding the problem of a reduction in the vehicle ground clearance caused by the installation of the battery pack 5-3.

[0033] Specifically, the front floor assembly 1 disclosed in the present invention mainly includes a front floor 1 , which is a plate structure as a whole and is partially provided with a reinforcing rib structure; the setting of the front floor 1 facilitates the arrangement of other components.

[0034] In addition, in order to facilitate the arrangement of the front floor assembly in the present invention, the front floor 1 includes a left floor 11 and a right floor 12, and the left floor 11 is connected to the right floor 12 through a central channel 4. Such an arrangement enables the central channel 4 to act as a connecting piece, thereby preventing the central channel 4 from being arranged on the front floor and being elevated. At the same time, the central channel 4 acts as a reinforcing beam, thereby greatly increasing the structural strength of the front floor assembly.

[0035] Furthermore, in the present invention, a seat frame assembly 2 is provided on the front floor 1; the seat frame assembly 2 includes a seat cross beam 21 arranged on the front floor 1, and one end of the seat cross beam 21 is overlapped and fitted with the side of the middle channel 4; the present invention has a function of increasing the structural strength of the front floor 1 through the setting of the seat cross beam 21. In addition, in the present invention, the side of the seat cross beam 21 is connected to the middle channel 4, which ensures the structural strength between the front floor 1 and the middle channel 4; it also ensures the stability of the connection between the front floor 1 and the middle channel 4; more importantly, the setting of the seat frame assembly 2 facilitates the subsequent connection with the seat, that is, it facilitates the connection between the seat and the front floor assembly.

[0036] Furthermore, in the present invention, each of the seat cross beams 21 is connected to the seat through a seat bracket 22; the seat brackets 22 are distributed at the ends of the seat cross beams 21; the setting of the seat brackets 22 plays a good bridging role, which facilitates the connection of the seat to the seat cross beams 21; in addition, the seat cross beams 21 of the present invention are connected to the seats through the seat brackets 22, which reduces the research and development cost of the front floor 1 assembly. When the seat cross beams 21 or the seats are replaced, only local components need to be replaced, which increases the versatility of the seats or the seat cross beams 21 and reduces the development cost of the overall components of the vehicle.

[0037] In addition, during the actual assembly of the present invention, the seat bracket arranged on the inner side of the seat cross beam is required to fit with the central channel, so that the seat bracket acts as a secondary connecting member, which better ensures the stability of the connection between the seat cross beam and the central channel.

[0038] In addition, in the present invention, a limiting rib 221 is provided on the inner wall of the seat bracket 22, and the limiting rib 221 is fitted inside the seat bracket 22; such a setting plays a good reinforcing role and well ensures the supporting strength of the seat bracket 22. In addition, the limiting rib 221 is smaller than the seat bracket 22, and the limiting rib 221 and the seat bracket 22 form a stepped platform. With such a setting, the limiting rib 221 and the seat bracket 22 play a good positioning role, which facilitates the stability of the arrangement of the seat bracket 22 on the seat cross beam 21 and the accuracy of the arrangement position.

[0039] Based on such a setting, the positioning of the seat bracket 22 is facilitated by the setting of the limiting rib 221. During actual installation and assembly, the seat bracket 22 can be well positioned on the seat crossbeam 21 in cooperation with the assembly ruler. During specific implementation, two assembly rulers are arranged on both sides of the end of the seat crossbeam 21, and then the seat bracket 22 is sleeved on the seat crossbeam 21. During assembly, the lower end surface of the assembly ruler is required to contact the seat crossbeam 21, and the upper end of the assembly ruler is required to contact the end of the limiting rib 221 in the seat bracket 22. Through such positioning, the precise positioning of the seat bracket 22 on the seat crossbeam 21 is guaranteed. Subsequently, the seat bracket 22 and the seat crossbeam 21 are fixedly connected, which can be connected by welding or bolts. Then the assembly ruler can be withdrawn. The assembly ruler is a prior art, which is a rectangular plate structure.

[0040] At the same time, in the present invention, the main body of the seat bracket 22 is an inverted U-shape, and the opening at the lower end of the seat bracket 22 is larger than the size of the seat beam 21; in actual use, the seat bracket 22 is sleeved on the seat beam 21, and in subsequent assembly, the seat bracket 22 is sleeved on the seat beam 21, so that the inner side surface of the seat bracket 22 is in contact with the outer side surface of the seat beam 21, thereby ensuring the fit between the seat bracket 22 and the seat beam 21, which is convenient for subsequent welding and fixation.

[0041] In addition, in the present invention, the side surfaces of the seat cross beam 21 and the side surfaces of the seat bracket 22 are both inclined plate structures, and such a configuration facilitates subsequent socket fitting.

[0042] Furthermore, the front floor 1 of the present invention is provided with a positioning groove 23 for limiting the seat beam 21; the setting of the positioning groove 23 plays a good limiting and positioning role, which facilitates the stability and accuracy of placing the seat beam 21 on the front floor 1.

[0043] Furthermore, in the present invention, a front floor longitudinal beam assembly 5 is provided on the front floor 1; the front floor longitudinal beam assembly 5 and the seat cross beam 21 assembly are distributed on opposite sides of the front floor 1; the front floor longitudinal beam assembly 5 includes a floor longitudinal beam 51 arranged on the front floor 1; the floor longitudinal beam 51 is connected to the battery pack 5-3; in the present invention, the floor longitudinal beam 51 plays the role of a reinforcing beam, which increases the overall structural strength of the front floor 1 to a certain extent. In addition, in the present invention, the floor longitudinal beam 51 also acts as a connecting piece for connecting the battery pack 5-3; it facilitates the subsequent connection and assembly of the battery pack 5-3.

[0044] Furthermore, in the present invention, a nut plate 53 is provided in the area where the floor longitudinal beam 51 is connected to the battery pack 5-3; the nut plate 53 is provided in the present invention to facilitate the connection and assembly between the battery pack 5-3 and the floor longitudinal beam 51. In addition, in the present invention, an avoidance groove 5-1 is provided on the floor longitudinal beam 51; the setting of the avoidance groove 5-1 plays a good avoidance role, facilitates the arrangement of the exhaust duct 5-2, increases the versatility of the present invention, and makes the front floor 1 structure disclosed in the present invention applicable to fuel vehicles, hybrid or pure electric vehicles; increases the scope of application of the front floor assembly of the present invention.

[0045] Furthermore, in the present invention, a connecting plate 6 is provided on the front floor 1, and the connecting plate 6 and the front floor longitudinal beam assembly 5 are distributed on the same side of the front floor 1; the side surface of the connecting plate 6 overlaps with the side surface of the adjacent floor longitudinal beam 51; the connecting plate 6 is used to increase the structural strength of the front floor 1; in addition, in the present invention, the connecting plate 6 overlaps with the floor longitudinal beam 51, thereby ensuring the connection strength between the connecting plate 6 and the floor longitudinal beam 51; better ensuring the connection and assembly between the floor longitudinal beam 51 and the front floor 1; in addition, in the present invention, the connecting plate is equivalent to a connecting member structure, which well ensures the stability of the connection between the floor longitudinal beam 51 and the front floor.

[0046] Furthermore, in the present invention, a cover plate assembly 3 is further provided on the front floor 1, and the cover plate assembly 3 and the front floor longitudinal beam assembly 5 are distributed on two opposite sides of the front floor 1; the cover plate assembly 3 includes a front longitudinal beam upper cover plate 31 arranged on the front floor 1; the arrangement of the cover plate assembly 3 plays a good protection role and is used to transmit the collision force to prevent the front panel from invading the cockpit during the collision; in addition, in the present invention, the end of the front longitudinal beam upper cover plate 31 overlaps the side of the seat cross beam 21; such an arrangement makes the integrity between the front longitudinal beam upper cover plate 31 and the seat cross beam 21 stronger, thereby better ensuring the integrity of the entire front floor 1 assembly and ensuring the structural strength of the entire front floor 1 assembly; in addition, in the present invention, it is required that the end of the front longitudinal beam upper cover plate 31 intersects with the horizontal projection of the end of the front floor longitudinal beam; such an arrangement makes the front longitudinal beam upper cover plate 31 overlap with the floor longitudinal beam 51, and at the same time, after a collision, the external force can be transmitted to the front floor longitudinal beam, which better ensures the structural strength of the floor assembly.

[0047] Furthermore, in the present invention, the vertical cross-section of the seat cross-beam 21 and the floor longitudinal beam 51 is in the shape of a "X"; reinforcing ribs 52 are provided inside the seat cross-beam 21 and the floor longitudinal beam 51; through such a structural arrangement, the present invention well ensures the overall structural strength of the seat cross-beam 21 and the floor longitudinal beam 51; and then ensures the overall structural strength of the front floor 1 assembly.

[0048] In addition, in actual layout, the present invention has two front longitudinal beam upper covers, two floor longitudinal beams, four seat cross beams, and two seat brackets are arranged on each seat cross beam. In order to facilitate the connection between components, welding flanges are provided on the front longitudinal beam upper covers, the floor longitudinal beams and the seat cross beams. The welding flanges are welded to the corresponding components, thereby facilitating the connection and assembly between the various components.

[0049] specific;

[0050] The front floor assembly 1 disclosed in the present invention takes into account both hybrid vehicles and new energy vehicles, meets platform requirements, reduces development costs, and shortens the platform vehicle development cycle.

[0051] The technical solution is as follows: the front floor 1 is raised compared to the traditional vehicle; that is, the front floor 1 is lower in the front and higher in the back; such a setting can meet the requirement that the battery pack 5-3 is arranged at the lower end of the front floor 1 and meet the ground clearance of the entire vehicle; in addition, in the present invention, the lower end of the front floor 1 is provided with left / right floor longitudinal beams; based on the setting of the floor longitudinal beam 51, an installation point is provided for the battery pack 5-3 to ensure the installation of the battery pack 5-3 and the strength of the installation point.

[0052] Specifically, the front floor 1 body is raised by 30 mm compared to a traditional vehicle to meet the 5-3 layout of the battery pack and the ground clearance. The left / right floor longitudinal beams are moved outward, and the floor longitudinal beams provide mounting points for the battery pack 5-3 to ensure the installation of the battery pack 5-3 and the strength of the mounting points.

[0053] The exhaust system avoids the battery pack 5-3, passes through the right floor longitudinal beam, and is arranged along the right side sill body. The middle channel 4 is adjusted in accordance with the raised boundary of the front floor 1 body. The seat cross beam 21 meets the installation space requirements for seat arrangement and is welded to the front floor 1. To meet the national standard collision requirements, the left / right upper covers of the front floor 1, the reinforcement plate of the middle channel 4, and the side reinforcement plate of the sill are designed and strengthened. The front cabin rear longitudinal beam and the floor longitudinal beam are connected by bolts, and pipe mounting brackets and welding studs are added to ensure the assembly requirements.

[0054] In addition, in the present invention, a relief sunk groove 5-1 is provided on the floor longitudinal beam 51, and a relief notch 41 is also provided on the middle channel 4. Such a setting can facilitate the layout of the exhaust pipe 5-2 and the battery pack 5-3 on the vehicle as a whole; enabling the front floor 1 assembly disclosed in the present invention to be used in hybrid vehicle models.

[0055] In the present invention, the front floor 1 includes a left floor 11 and a right floor 12; the left floor 11 is connected to the right floor 12 through the middle channel 4. The above components are the basic connection structure. At the same time, a seat frame assembly 2, a cover plate assembly 3, and a front floor longitudinal beam assembly 5 are provided on the front floor 1; in the present invention, the front floor upper cover in the cover plate assembly 3 serves as the frontal collision force transmission path, reducing the intrusion amount of the front apron and meeting the requirements of the collision national standard regulations.

[0056] In addition, in the present invention, due to the layout of the battery pack 5-3 on the front floor 1, on the premise of ensuring the foot space of the human body, the rear end of the front floor 1 body is raised by 30 mm compared to a traditional vehicle to ensure the ground clearance and installation clearance of the battery pack 5-3.

[0057] In addition, in the present invention, the mounting points of the battery pack 5-3 are arranged on the left and right floor longitudinal beams 51, and a nut plate 53 is welded inside the floor longitudinal beam 51 to ensure the rigidity and strength of the mounting points of the battery pack 5-3.

[0058] In addition, in the present invention, the exhaust pipe layout direction passes through the right floor longitudinal beam, and a relief sunk groove 5-1 is provided on the front right floor longitudinal beam; the relief installation clearance ≥ 30 mm (only on the right side); as shown in the attached drawing.

[0059] In addition, in the present invention, a reinforcement plate is added inside the floor longitudinal beam 51 to form a "day" - shaped cavity section, strengthening the anti - deformation ability of the frontal collision longitudinal beam and meeting the requirements of the frontal collision regulations.

[0060] Reinforcement connecting plates 6 are added at the positions of the floor longitudinal beam 51 and the sill to strengthen the side collision deformation, reduce the side collision intrusion amount, and further protect the battery pack 5-3 from deformation, meeting the requirements of the side collision regulations and electrical safety.

[0061] At the same time, the present invention requires that the front floor 1 be lifted by 30 mm, the cross-sectional size of the seat beam 21 be reduced by 30 mm, and the stiffness value of the seat mounting point be reduced. The seat beam 21 is optimized by adding reinforcing ribs, the seat mounting plate is optimized by adding raised reinforcing ribs and the internal reinforcing plate structure, so as to meet the stiffness value of the seat mounting point ≥ 1000 N / mm.

[0062] Through the above structural design optimization, the layout and installation requirements and the vehicle collision safety requirements are met, and the installation point rigidity / strength and vehicle performance requirements are met. At the same time, the above front floor 1 assembly structure meets the development of pure electric models and hybrid models, meets the platform development needs to the greatest extent, reduces development costs, and shortens the project development cycle.

[0063] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A universal automobile front floor assembly, characterized in that: It includes a front floor, wherein the height of the front end of the front floor from the ground is less than the height of the rear end of the front floor from the ground; The front floor comprises a left floor and a right floor, wherein the left floor is connected to the right floor via a central channel; a seat frame assembly is arranged on the front floor; the seat frame assembly comprises a seat crossbeam arranged on the front floor, wherein one end of the seat crossbeam overlaps and fits with the side surface of the central channel; Each of the seat cross beams is connected to the seat via a seat bracket; the seat brackets are distributed at the ends of the seat cross beams; A limiting rib is provided on the inner wall of the seat bracket, and the limiting rib is fitted inside the seat bracket; the limiting rib is smaller than the seat bracket, and the limiting rib and the seat bracket form a stepped platform; The front floor is provided with a front floor longitudinal beam assembly; the front floor longitudinal beam assembly and the seat cross beam assembly are distributed on two opposite sides of the front floor; the front floor longitudinal beam assembly includes a floor longitudinal beam arranged on the front floor; the floor longitudinal beam is connected to the battery pack; The floor longitudinal beam is provided with an avoidance trough; During assembly, the limiting rib plate cooperates with the assembly horizontal ruler to realize the positioning operation of the seat bracket on the seat crossbeam; When implementing it; Two assembly horizontal rulers are arranged on both sides of the end of the seat crossbeam, and then the seat bracket is sleeved on the seat crossbeam. During assembly, the lower end surface of the assembly horizontal ruler is required to contact the seat crossbeam, and the upper end of the assembly horizontal ruler is required to contact the end of the limit rib plate in the seat bracket; Then, the seat bracket and the seat crossbeam are fixedly connected; after the fixed connection is completed; Then remove the assembly horizontal ruler.

2. A universal automobile front floor assembly according to claim 1, characterized in that: The front floor is provided with a positioning groove for limiting the position of the seat crossbeam.

3. The universal automobile front floor assembly according to claim 1, characterized in that: The floor longitudinal beam is provided with a nut plate in the area where it connects to the battery pack; and the floor longitudinal beam is provided with an avoidance groove.

4. The universal automobile front floor assembly according to claim 1, characterized in that: The front floor is provided with a connecting plate, and the connecting plate and the front floor longitudinal beam assembly are distributed on the same side of the front floor; the side surface of the connecting plate overlaps the side surface of the adjacent floor longitudinal beam.

5. The universal automobile front floor assembly according to claim 1, characterized in that: A cover plate assembly is also provided on the front floor, and the cover plate assembly and the front floor longitudinal beam assembly are distributed on two opposite sides of the front floor; the cover plate assembly includes a front longitudinal beam upper cover plate provided on the front floor; the end of the front longitudinal beam upper cover plate overlaps the side of the seat cross beam; and the end of the front longitudinal beam upper cover plate intersects with the horizontal projection of the end of the front floor longitudinal beam.

6. The universal automobile front floor assembly according to claim 1, characterized in that: The vertical cross sections of the seat cross beam and the floor longitudinal beam are in a "X" shape; reinforcing ribs are arranged inside the seat cross beam and the floor longitudinal beam.

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