Floor frame of vehicle and vehicle

Abstract

The application provides a floor frame of a vehicle and the vehicle. The floor frame comprises a front bumper beam, a first cross beam and a pair of first longitudinal beams which form a first frame structure, a second cross beam, a rear bumper beam and a pair of third longitudinal beams which form a second frame structure, and a pair of second longitudinal beams which connect the first cross beam and the second cross beam. The floor frame further comprises a third cross beam, a fourth cross beam, a pair of fixed beams, a front connecting beam, a middle connecting beam and a first rear connecting beam. The front connecting beam is fixed with the first cross beam and the third cross beam, the middle connecting beam is fixed with the first cross beam and the second cross beam, and the first rear connecting beam is fixed with the second cross beam and the fourth cross beam. The pair of fixed beams is fixed with the second cross beam and the pair of third longitudinal beams. The floor frame has better strength. The first cross beam and the front connecting beam are fixed with a front seat, and have the functions of fixing the front seat and improving the strength of the floor frame. The middle connecting beam, the first rear connecting beam and the pair of fixed beams are fixed with a rear seat, and have the functions of fixing the rear seat and improving the strength of the floor frame.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to vehicle floor frames and vehicles. Background Technology

[0002] With the strengthening of automotive regulations and the increasing demands for vehicle safety from the market and customers, vehicle bodies, especially monocoque bodies, require higher strength to meet these needs. Currently, some models on the market have relatively simple floor frames and insufficient overall structural strength, posing technical risks in vehicle testing and commercial operation. Utility Model Content

[0003] This application provides a vehicle floor frame and vehicle with better strength.

[0004] This application provides a vehicle floor frame, including a front bumper beam forming a first frame structure, a first crossbeam and a pair of first longitudinal beams, a second crossbeam forming a second frame structure, a rear bumper beam and a pair of third longitudinal beams, and a pair of second longitudinal beams connecting the first crossbeam and the second crossbeam. The floor frame also includes a third crossbeam, a fourth crossbeam, a pair of fixed beams, a front connecting beam, a middle connecting beam, and a first rear connecting beam. The front connecting beam is located within the first frame structure and is fixed to the first crossbeam and the third crossbeam. The middle connecting beam is located between the pair of second longitudinal beams and is fixed to the first crossbeam and the second crossbeam. The first rear connecting beam is located within the second frame structure and is fixed to the second crossbeam and the fourth crossbeam. The pair of fixed beams are located outside the second frame structure and are respectively fixed to the second crossbeam and the pair of third longitudinal beams. The first crossbeam and the front connecting beam are fixed to the front seats of the vehicle, and the middle connecting beam, the first rear connecting beam, and the pair of fixed beams are fixed to the rear seats of the vehicle.

[0005] Furthermore, the floor frame includes a fifth crossbeam located within the first frame structure and its two ends are respectively fixed to a pair of first longitudinal beams. The front connecting beam includes a pair of first connecting beams, the two ends of which are respectively fixed to the first crossbeam and the fifth crossbeam.

[0006] Furthermore, along the vehicle's direction of travel, the front anti-collision beam, the third crossbeam, the fifth crossbeam, and the first crossbeam are arranged sequentially.

[0007] Furthermore, the front connecting beam includes a pair of second connecting beams, with the two ends of the pair of second connecting beams respectively connected to the third crossbeam and the fifth crossbeam.

[0008] Furthermore, the floor frame includes a sixth crossbeam along the vehicle's direction of travel, the sixth crossbeam being located between the first crossbeam and the second crossbeam, the two ends of the sixth crossbeam being fixed to a pair of second longitudinal beams respectively, and the central connecting beam including a pair of third connecting beams, the two ends of the pair of third connecting beams being fixed to the second crossbeam and the sixth crossbeam respectively.

[0009] Furthermore, the middle connecting beam includes a fourth connecting beam, the two ends of which are fixed to the first crossbeam and the sixth crossbeam, respectively.

[0010] Furthermore, the floor frame includes a seventh crossbeam located within the second frame structure, with both ends of the seventh crossbeam fixed to a pair of third longitudinal beams respectively. The first rear connecting beam includes a pair of fifth connecting beams, with both ends of the pair of fifth connecting beams fixed to the second crossbeam and the seventh crossbeam respectively.

[0011] Furthermore, the first rear connecting beam includes a pair of sixth connecting beams, the two ends of which are respectively fixed to the fourth crossbeam and the seventh crossbeam.

[0012] Furthermore, the floor frame includes a second rear connecting beam that connects the fourth crossbeam to the rear bumper beam.

[0013] Furthermore, the floor frame includes an eighth crossbeam located within the second frame structure, with both ends of the eighth crossbeam fixed to a pair of the third longitudinal beams respectively; the second rear connecting beam includes a seventh connecting beam, with both ends of the seventh connecting beam fixed to the fourth crossbeam and the eighth crossbeam respectively; and / or, The second rear connecting beam includes an eighth connecting beam, the two ends of which are fixed to the eighth crossbeam and the rear anti-collision beam, respectively.

[0014] Furthermore, the front bumper beam is detachably fixed to a pair of the first longitudinal beams; and / or, The rear bumper beam is detachably fixed to the pair of third longitudinal beams.

[0015] Furthermore, the floor frame includes a pair of pedals respectively fixed to a pair of second longitudinal beams, each pedal including an upper mounting member and a lower mounting member fixed to the upper mounting member, the upper mounting member including a rear step mounting surface and a seat mounting surface, and the lower mounting member being detachably fixed to the vehicle's battery pack.

[0016] Furthermore, the pedal includes a reinforcing beam located between the upper mounting member and the lower mounting member, and a fastening nut is fixed on the reinforcing beam for fixing a fastening bolt for securing the vehicle's battery pack.

[0017] This application also provides a vehicle including the aforementioned floor frame.

[0018] In this embodiment, the floor frame is formed by a front bumper beam, a first crossbeam, and a pair of first longitudinal beams, creating a first frame structure. A second crossbeam, a rear bumper beam, and a pair of third longitudinal beams form a second frame structure. The first and second crossbeams are connected by a pair of second longitudinal beams, increasing the strength of the floor frame. Furthermore, the front connecting beam not only secures the vehicle's front seats but also enhances the strength of the floor frame. Additionally, the middle connecting beam, the first rear connecting beam, and a pair of fixing beams not only secure the vehicle's rear seats but also further enhance the strength of the floor frame. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the vehicle body and floor frame after being fixed according to the embodiments of this application; Figure 2 yes Figure 1 A schematic diagram of the floor frame shown; Figure 3 yes Figure 2 A top view of the floor frame shown; Figure 4 yes Figure 2 The diagram shows the front bumper beam fixed to a pair of first longitudinal beams. Figure 5 yes Figure 4 An enlarged view of the circled area at point A in the schematic diagram shown; Figure 6 yes Figure 2 A schematic diagram of the pedals shown; Figure 7 yes Figure 6 The side view of the pedal shown; Figure 8 yes Figure 7 The diagram shows a cross-sectional view of the pedal along line AA. Figure 9 yes Figure 6 The diagram shows the pedal and battery pack fixed together.

[0020] Description of Reference Numerals in the Drawings: vehicle body, 200; floor frame, 100; front anti-collision beam, 11; rear anti-collision beam, 12; first cross beam, 21; second cross beam, 22; third cross beam, 23; fourth cross beam, 24; fifth cross beam, 25; sixth cross beam, 26; seventh cross beam, 27; eighth cross beam, 28; first longitudinal beam, 31; first portion, 311; second portion, 312; second longitudinal beam, 32; third longitudinal beam, 33; fixed beam, 40; front connecting beam, 41; first connecting beam, 411; second connecting beam, 412; middle connecting beam, 42; third connecting beam, 421; fourth connecting beam, 422; first rear connecting beam, 43; fifth connecting beam, 431; sixth connecting beam, 432; second rear connecting beam, 44; seventh connecting beam, 441; eighth connecting beam, 442; second hole, 313; pedal, 5; upper mounting member, 51; rear step mounting surface, 511; seat mounting surface, 512; lower mounting member, 52; first through hole, 521; reinforcing beam, 53; cavity, 531; second through hole, 532; fastening nut, 54; battery pack, 6; positioning pin, 61. Detailed Description of the Embodiments

[0021] The technical solutions in the embodiments (also referred to as "implementations") of the present application will be clearly and completely described herein with reference to the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated.

[0022] If terms related to directional indications or positional relationships are involved in the embodiments of the present application (such as up, down, left, right, front, rear, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, motion situation, etc. between various components under a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, terms such as "first" and "second" involved in the embodiments of the present application are only for the purpose of convenient description, and cannot be interpreted as indicating or implying relative importance. The fixing in the present application includes direct fixing and indirect fixing. The connection in the present application includes direct connection and indirect connection.

[0023] Refe Figure 1 rring to the drawings, the vehicle according to the implementation of the present application includes a floor frame 100. The core function of the floor frame 100 is to carry the vehicle body 200 and components, transmit forces, and ensure the rigidity and safety of the vehicle body 200.

[0024] Refe Figures 2 to 3The floor frame 100 of this embodiment includes a front bumper beam 11, a rear bumper beam 12, a first crossbeam 21, a second crossbeam 22, a pair of first longitudinal beams 31, a pair of second longitudinal beams 32, a pair of third longitudinal beams 33, a pair of fixed beams 40, a front connecting beam 41, a middle connecting beam 42, and a first rear connecting beam 43. The front bumper beam 11, the first crossbeam 21, the second crossbeam 22, and the rear bumper beam 12 are arranged sequentially along the vehicle's direction of travel.

[0025] The front bumper beam 11 and the first crossbeam 21 are respectively fixed to a pair of first longitudinal beams 31. The front bumper beam 11, the first crossbeam 21, and the pair of first longitudinal beams 31 form a first frame structure. The second crossbeam 22 and the rear bumper beam 12 are respectively fixed to a pair of third longitudinal beams 33. The second crossbeam 22, the rear bumper beam 12, and the pair of third longitudinal beams 33 form a second frame structure. A pair of second longitudinal beams 32 connect the first crossbeam 21 and the second crossbeam 22 respectively. The first crossbeam 21, the second crossbeam 22, and the pair of second longitudinal beams 32 form a third frame structure. The arrangement of the first frame structure, the second frame structure, and the third frame structure improves the strength of the floor frame 100.

[0026] In one embodiment, the floor frame 100 includes a third crossbeam 23. The third crossbeam 23 is located within a first frame structure and its two ends are fixed to a pair of first longitudinal beams 31, respectively. Along the vehicle's direction of travel, the front bumper beam 11, the third crossbeam 23, the fifth crossbeam 25, and the first crossbeam 21 are arranged sequentially. The arrangement of the third crossbeam 23 further improves the strength of the floor frame 100.

[0027] The front connecting beam 41 is located within the first frame structure and is fixed to the first crossbeam 21 and the third crossbeam 23. The first crossbeam 21 and the front connecting beam 41 are fixed to the front seats of the vehicle. The front connecting beam 41 not only secures the front seats of the vehicle but also increases the strength of the floor frame 100.

[0028] In one embodiment, a first positioning member (not shown) is provided on the first crossbeam 21, and the first positioning member is located within the cavity of the first crossbeam 21. A second positioning member (not shown) is provided on the front connecting beam 41, and the second positioning member is located within the cavity of the front connecting beam 41. The first positioning member and the second positioning member are used to fix the front seat of the vehicle. The first positioning member and the second positioning member are not exposed to avoid affecting the appearance of the vehicle.

[0029] In one embodiment, the floor frame 100 includes a fifth crossbeam 25. The fifth crossbeam 25 is located within the first frame structure and its two ends are respectively fixed to a pair of first longitudinal beams 31. The front connecting beam 41 includes a pair of first connecting beams 411. The two ends of the pair of first connecting beams 411 are respectively fixed to the first crossbeam 21 and the fifth crossbeam 25. The provision of the fifth crossbeam 25 further improves the strength of the floor frame 100.

[0030] In one embodiment, the front connecting beam 41 includes a pair of second connecting beams 412. The two ends of the pair of second connecting beams 412 are respectively connected to the third crossbeam 23 and the fifth crossbeam 25. The arrangement of the pair of second connecting beams 412 further improves the strength of the floor frame 100.

[0031] In one embodiment, a pair of first connecting beams 411 are arranged in parallel.

[0032] In one embodiment, a pair of second connecting beams 412 are arranged in parallel.

[0033] In one embodiment, the distance between a pair of first connecting beams 411 is the same as the distance between a pair of second connecting beams 412.

[0034] In one embodiment, three first connecting beams 411 are provided, wherein the distance between a pair of first connecting beams 411 is the same as the distance between a pair of second connecting beams 412, and the third first connecting beam 411 is located between a pair of first connecting beams 411 and one of the first longitudinal beams 31, thereby improving the strength of the floor frame 100.

[0035] The first frame structure, the fifth crossbeam 25, the third crossbeam 23, a pair of first connecting beams 411 and a pair of second connecting beams 412 provide a stable safety protection structure for front passengers.

[0036] In one embodiment, the fifth crossbeam 25 may be omitted, and the first connecting beam 411 may connect the first crossbeam 21 and the third crossbeam 23.

[0037] In one embodiment, the third crossbeam 23 and the second connecting beam 412 may be omitted. In one embodiment, the floor frame 100 includes a fourth crossbeam 24 located within the second frame structure. Both ends of the fourth crossbeam 24 are fixed to a pair of third longitudinal beams 33. The inclusion of the fourth crossbeam 24 further enhances the strength of the floor frame 100.

[0038] The central connecting beam 42 is located between a pair of second longitudinal beams 32 and is fixed to the first crossbeam 21 and the second crossbeam 22. The first rear connecting beam 43 is located within the second frame structure and is fixed to the second crossbeam 22 and the fourth crossbeam 24. A pair of fixed beams 40 are located outside the second frame structure and are fixed to the second crossbeam 22 and the pair of third longitudinal beams 33, respectively. The central connecting beam 42, the first rear connecting beam 43, and the pair of fixed beams 40 are fixed to the rear seats of the vehicle. The arrangement of the central connecting beam 42, the first rear connecting beam 43, and the pair of fixed beams 40 not only secures the rear seats of the vehicle but also increases the strength of the floor frame 100.

[0039] In one embodiment, a third positioning member (not shown) is provided on the central connecting beam 42, and the third positioning member is located within the cavity of the central connecting beam 42. A fourth positioning member (not shown) is provided on the first rear connecting beam 43, and the fourth positioning member is located within the cavity of the first rear connecting beam 43. A fifth positioning member (not shown) is provided on the fixed beam 40, and the fifth positioning member is located within the cavity of the fixed beam 40. The third, fourth, and fifth positioning members are used to fix the rear seat of the vehicle. The third, fourth, and fifth positioning members are not exposed to avoid affecting the appearance of the vehicle.

[0040] In one embodiment, a pair of first longitudinal beams 31 are arranged opposite each other along the width direction of the vehicle, a pair of second longitudinal beams 32 are arranged opposite each other along the width direction of the vehicle, and a pair of third longitudinal beams 33 are arranged opposite each other along the width direction of the vehicle.

[0041] In one embodiment, the first longitudinal beam 31 includes a front end fixed to the front bumper beam 11 and a rear end opposite to the front end. The distance between the pair of front ends of a pair of first longitudinal beams 31 is less than the distance between the pair of rear ends of a pair of first longitudinal beams 31. The distance between the pair of rear ends of a pair of first longitudinal beams 31 is the same as the distance between a pair of second longitudinal beams. The distance between a pair of third longitudinal beams 33 is less than the distance between a pair of second longitudinal beams 32, i.e., the floor frame 100 is wider in the middle and narrower at both ends.

[0042] In one embodiment, the distance between a pair of third longitudinal beams 33 is equal to the distance between a pair of front ends of a pair of first longitudinal beams 31.

[0043] In one embodiment, the first longitudinal beam 31 includes a first portion 311 and a second portion 312 connected to the first portion 311. The front bumper beam 11 is connected to a pair of first portions 311. The first crossbeam 21 is connected to a pair of second portions. The pair of first portions 311 are arranged in parallel. The second portions 312 are inclined outward from the first portions 311 toward the outside in the width direction of the vehicle, such that the space enclosed by the pair of second portions 312 is funnel-shaped.

[0044] In one embodiment, the first longitudinal beam 31 is hollow, with high structural strength and strong compressive capacity.

[0045] In one embodiment, a pair of second longitudinal beams 32 are arranged in parallel.

[0046] In one embodiment, a pair of third longitudinal beams 33 are arranged in parallel.

[0047] In one embodiment, the third longitudinal beam 33 has a straight structure, which is easy to form. It can achieve co-line processing of parts of different lengths through roll forming process, resulting in high production efficiency, flexible production, low single development investment cost, and reduced development costs. At the same time, it is conducive to the platformization and modularization of the vehicle body.

[0048] In one embodiment, the floor frame 100 includes a sixth crossbeam 26. Along the vehicle's direction of travel, the sixth crossbeam 26 is located between the first crossbeam 21 and the second crossbeam 22. Both ends of the sixth crossbeam 26 are fixed to a pair of second longitudinal beams 32. The central connecting beam 42 includes a pair of third connecting beams 421. Both ends of the third connecting beams 421 are fixed to the second crossbeam 22 and the sixth crossbeam 26, respectively. The arrangement of the sixth crossbeam 26 further improves the strength of the floor frame 100.

[0049] In one embodiment, the sixth crossbeam 26 is parallel to the first crossbeam 21.

[0050] In one embodiment, a pair of third connecting beams 421 are arranged in parallel.

[0051] In one embodiment, the central connecting beam 42 includes a fourth connecting beam 422. The two ends of the fourth connecting beam 422 are fixed to the first crossbeam 21 and the sixth crossbeam 26, respectively. The provision of the fourth connecting beam 422 further enhances the strength of the floor frame 100.

[0052] In one embodiment, a pair of third connecting beams 421 are symmetrically arranged relative to a fourth connecting beam 422 along the width direction of the vehicle.

[0053] In one embodiment, the fourth connecting beam 422 is located between the first crossbeam 21 and / or the sixth crossbeam 26.

[0054] In one embodiment, a pair of first connecting beams 411 are symmetrically arranged relative to a fourth connecting beam 422.

[0055] In one embodiment, the floor frame 100 includes a seventh crossbeam 27 located within a second frame structure. Both ends of the seventh crossbeam 27 are fixed to a pair of third longitudinal beams 33. The first rear connecting beam 43 includes a pair of fifth connecting beams 431. Both ends of the pair of fifth connecting beams 431 are fixed to the second crossbeam 22 and the seventh crossbeam 27, respectively. The arrangement of the seventh crossbeam 27 further enhances the strength of the floor frame 100.

[0056] In one embodiment, the first rear connecting beam 43 includes a pair of sixth connecting beams 432. The two ends of the pair of sixth connecting beams 432 are respectively fixed to the fourth crossbeam 24 and the seventh crossbeam 27. The arrangement of the pair of sixth connecting beams 432 further enhances the strength of the floor frame 100.

[0057] In one embodiment, the floor frame 100 includes a second rear connecting beam 44. The second rear connecting beam 44 connects the fourth crossbeam 24 to the rear bumper beam 12.

[0058] In one embodiment, the floor frame 100 includes an eighth cross member 28 located within the second frame structure. Both ends of the eighth cross member 28 are respectively fixed to a pair of third longitudinal beams 33. The arrangement of the eighth cross member 28 further improves the strength of the floor frame 100.

[0059] The phrase "located within the first frame structure or the second frame structure" in this text covers the case where the projection on the plane where the floor frame 100 is located falls within the first frame structure or the second frame structure.

[0060] In one embodiment, the second rear connection beam 44 includes a seventh connection beam 441. Both ends of the seventh connection beam 441 are respectively fixed to the fourth cross member 24 and the eighth cross member 28. The arrangement of the seventh connection beam 441 further improves the strength of the floor frame 100.

[0061] In one embodiment, the second rear connection beam 44 includes an eighth connection beam 442. Both ends of the eighth connection beam 442 are respectively fixed to the eighth cross member 28 and the rear anti-collision beam 12. The arrangement of the eighth connection beam 442 further improves the strength of the floor frame 100.

[0062] The fourth cross member 24, the eighth cross member 28, the sixth connection beam 432, the seventh connection beam 441 and the eighth connection beam 442 may be arranged according to actual needs, or the number thereof may be increased or decreased.

[0063] The pair of first longitudinal beams 31, the pair of second longitudinal beams 32 and the pair of third longitudinal beams 33 of the floor frame 100 form a main body outer frame. All cross members and all connection beams together with the main body outer frame form a compact and uniformly distributed mesh beam frame structure, which can effectively resist external impacts and loads, improve the overall strength and rigidity of the vehicle body, fully protect the safety of occupants, and improve NVH performance.

[0064] In one embodiment, the floor frame 100 is manufactured by a welding process, which has mature process and low cost.

[0065] In one embodiment, one or more of the fourth cross member 24, the seventh cross member 27 and the eighth cross member 28 may be selectively arranged.

[0066] In one embodiment, one or more of the sixth connection beam 432, the seventh connection beam 441 and the eighth connection beam 442 may be selectively arranged.

[0067] Refe Figures 4 to 5 , in one embodiment, the front anti-collision beam 11 is detachably fixed to the pair of first longitudinal beams 31, which improves collision safety and facilitates maintenance.

[0068] In one embodiment, the front anti-collision beam 11 is provided with a first hole (not shown), and the first longitudinal beam 31 is provided with a second hole 313. The floor frame 100 includes a first fixing member (not shown), which is assembled in the first hole and the second hole 313 to fix the first longitudinal beam 31 and the front anti-collision beam 11.

[0069] When the first fixing member is a screw, the screw passes through the first hole and is threadedly connected to the front anti-collision beam 11. When the first fixing member is a bolt, the bolt passes through the first hole and the second hole and is fixed to a nut.

[0070] In one embodiment, the rear anti-collision beam 12 is detachably fixed to a pair of third longitudinal beams 33, which improves collision safety and facilitates maintenance.

[0071] In one embodiment, the rear anti-collision beam 12 is provided with a third hole (not shown), and the third longitudinal beam 33 is provided with a fourth hole (not shown). The floor frame 100 includes a second fixing member (not shown), which is assembled in the third hole and the fourth hole to fix the third longitudinal beam 33 and the rear anti-collision beam 12.

[0072] When the second fixing member is a screw, the screw passes through the third hole and is threadedly connected to the rear anti-collision beam 12. When the second fixing member is a bolt, the bolt passes through the third hole and the fourth hole and is fixed to a nut.

[0073] In one embodiment, the first longitudinal beam 31, the first transverse beam 21, the third transverse beam 23 and the fifth transverse beam 25 are thermoformed rigid members, and the structural rigidity is significantly improved.

[0074] Reference Figure 2 to Figures 6 to 9 , in one embodiment, the floor frame 100 includes a pair of pedals 5 respectively fixed to a pair of second longitudinal beams 32. The pedal 5 includes an upper mounting member 51 and a lower mounting member 52 fixed to the upper mounting member 51. The upper mounting member 51 includes a rear step mounting surface 511 and a seat mounting surface 512. The lower mounting member 52 is detachably fixed to the vehicle battery pack 6.

[0075] The middle part of the floor frame 100 is wide, which can accommodate the installation of a large battery pack and enhance product competitiveness.

[0076] In one embodiment, the pedal 5 includes a reinforcing beam 53 located between the upper mounting member 51 and the lower mounting member 52. A fastening nut 54 is fixed on the reinforcing beam 53, for fixing a fastening bolt (not shown) to fix the battery pack 6 to the pedal 5. The fastening nut 54 is fixed on the reinforcing beam 53, which optimizes the overall structural layout, with a simple and beautiful structural arrangement and strong versatility.

[0077] In one embodiment, the fastening nut 54 is located in the cavity 531 of the reinforcement beam 53, which does not affect the appearance of the vehicle. The lower mounting member 52 is provided with a first through hole 521, the reinforcement beam 53 is provided with a second through hole 532, and the first through hole 521 and the second through hole 532 are for the fastening bolt to pass through.

[0078] In one embodiment, the reinforcement beam 53 is an aluminum extruded reinforcement beam, which can improve the overall rigidity.

[0079] The floor frame 100 forms a multi-loop connection, and the performance of the vehicle body structure in terms of strength, rigidity, NVH and the like is significantly improved, a larger battery pack 6 can be arranged, and the product competitiveness is enhanced.

[0080] In one embodiment, the pedal 5 can be fixed to the battery pack 6 in a non-detachable manner to realize a pure electric charging structure, or can be detachably fixed to the battery pack 6 to realize a battery swapping charging structure. By replacing the lower mounting member 52, the installation of different forms of battery packs 6 can be satisfied, the vehicle development cost is significantly reduced, and the needs of different target users (left-hand drive and right-hand drive, pure electric charging and pure electric battery swapping) are met at the same time.

[0081] In one embodiment, the pedal 5 is made of high-strength steel, which effectively improves the vehicle body strength.

[0082] In one embodiment, the pedal 5 is provided with a positioning hole (not shown). When the battery pack 6 is installed, the positioning pin 61 is assembled to the positioning hole to realize fast alignment and installation of the fastening bolt, so as to improve the working efficiency and achieve the purpose of quickly replacing the battery pack 6.

[0083] Reference Figure 1 , the vehicle is a left-hand drive model, and the sliding door is arranged on the right side of the vehicle body 200, forming the vehicle body 200 with a right-side B-pillar-free structure. The pedal 5 is arranged according to the left-hand drive and right-hand drive of the vehicle body 200, the side with a B-pillar is matched with the front door for installation, the side without a B-pillar is matched with the sliding door and the front door for installation, and it can also be matched with a double-side B-pillar-free structure. By matching the B-pillar-free structure, a larger space for getting on and off the vehicle is provided for the vehicle body 200, and the convenience of getting on and off the vehicle is improved.

[0084] When the customer's demand is a right-hand drive model, through the left-right symmetrical transformation and combination of the pedal 5, the vehicle body 200 with a B-pillar-free structure in which the sliding door is arranged on the left side of the vehicle body can be realized; when the customer's demand is a double-side sliding door structure, through the combination of the pedal 5, the vehicle body 200 with a double-side B-pillar-free structure can be realized.

[0085] In one embodiment, the vehicle body 200 of the vehicle is manufactured using high-strength steel to meet the safety performance requirements.

[0086] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A floor frame for a vehicle, characterized in that, include: The floor frame includes a front bumper beam, a first crossbeam and a pair of first longitudinal beams forming a first frame structure, a second crossbeam forming a second frame structure, a rear bumper beam and a pair of third longitudinal beams, and a pair of second longitudinal beams connecting the first crossbeam and the second crossbeam. The floor frame also includes a third crossbeam, a fourth crossbeam, a pair of fixed beams, a front connecting beam, a middle connecting beam and a first rear connecting beam. The front connecting beam is located within the first frame structure and is fixed to the first crossbeam and the third crossbeam. The middle connecting beam is located between the pair of second longitudinal beams and is fixed to the first crossbeam and the second crossbeam. The first rear connecting beam is located within the second frame structure and is fixed to the second crossbeam and the fourth crossbeam. The pair of fixed beams are located outside the second frame structure and are respectively fixed to the second crossbeam and the pair of third longitudinal beams. The first crossbeam and the front connecting beam are fixed to the front seats of the vehicle. The middle connecting beam, the first rear connecting beam and the pair of fixed beams are fixed to the rear seats of the vehicle.

2. The vehicle floor frame according to claim 1, characterized in that, The floor frame includes a fifth crossbeam located within the first frame structure, with both ends of the fifth crossbeam fixed to a pair of first longitudinal beams. The front connecting beam includes a pair of first connecting beams, with both ends of the pair of first connecting beams fixed to the first crossbeam and the fifth crossbeam, respectively.

3. The vehicle floor frame according to claim 2, characterized in that, Along the vehicle's direction of travel, the front bumper beam, the third crossbeam, the fifth crossbeam, and the first crossbeam are arranged sequentially.

4. The vehicle floor frame according to claim 3, characterized in that, The front connecting beam includes a pair of second connecting beams, with the two ends of the pair of second connecting beams respectively connected to the third crossbeam and the fifth crossbeam.

5. The vehicle floor frame according to claim 1, characterized in that, The floor frame includes a sixth crossbeam along the vehicle's direction of travel. The sixth crossbeam is located between the first crossbeam and the second crossbeam. Both ends of the sixth crossbeam are fixed to a pair of second longitudinal beams. The central connecting beam includes a pair of third connecting beams. Both ends of the pair of third connecting beams are fixed to the second crossbeam and the sixth crossbeam, respectively.

6. The vehicle floor frame according to claim 5, characterized in that, The connecting beam includes a fourth connecting beam, the two ends of which are fixed to the first crossbeam and the sixth crossbeam, respectively.

7. The vehicle floor frame according to claim 1, characterized in that, The floor frame includes a seventh crossbeam located within the second frame structure, with both ends of the seventh crossbeam fixed to a pair of third longitudinal beams. The first rear connecting beam includes a pair of fifth connecting beams, with both ends of the pair of fifth connecting beams fixed to the second crossbeam and the seventh crossbeam, respectively.

8. The vehicle floor frame according to claim 7, characterized in that, The first rear connecting beam includes a pair of sixth connecting beams, the two ends of which are fixed to the fourth crossbeam and the seventh crossbeam, respectively.

9. The vehicle floor frame according to claim 1, characterized in that, The floor frame includes a second rear connecting beam, which connects the fourth crossbeam to the rear anti-collision beam.

10. The vehicle floor frame according to claim 9, characterized in that, The floor frame includes an eighth crossbeam located within the second frame structure, with both ends of the eighth crossbeam fixed to a pair of the third longitudinal beams respectively; the second rear connecting beam includes a seventh connecting beam, with both ends of the seventh connecting beam fixed to the fourth crossbeam and the eighth crossbeam respectively; and / or, The second rear connecting beam includes an eighth connecting beam, the two ends of which are fixed to the eighth crossbeam and the rear anti-collision beam, respectively.

11. The vehicle floor frame according to claim 1, characterized in that, The front bumper beam is detachably fixed to a pair of the first longitudinal beams; and / or, The rear bumper beam is detachably fixed to the pair of third longitudinal beams.

12. The floor frame of the vehicle according to any one of claims 1 to 11, characterized in that, The floor frame includes a pair of pedals fixed to a pair of second longitudinal beams respectively. Each pedal includes an upper mounting member and a lower mounting member fixed to the upper mounting member. The upper mounting member includes a rear step mounting surface and a seat mounting surface. The lower mounting member is detachably fixed to the vehicle's battery pack.

13. The vehicle floor frame according to claim 12, characterized in that, The pedal includes a reinforcing beam located between the upper mounting member and the lower mounting member, and a fastening nut is fixed on the reinforcing beam for fixing a fastening bolt for securing the vehicle's battery pack.

14. A vehicle, characterized in that, Includes the floor frame as described in any one of claims 1 to 13.

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