Vehicle body framework structure and vehicle

Abstract

The utility model relates to a vehicle body framework structure and a vehicle, the vehicle body framework structure comprises an edge beam assembly, a seat mounting beam, a front ground panel and a battery tray, the battery tray is used for mounting a battery module, and the edge beam assembly is arranged on the opening side of the battery tray in a surrounding mode and is in threaded connection with a turned edge on the peripheral side of the battery tray; one end, far away from the battery tray, of the edge beam assembly is provided with an overlapping edge, one end of the overlapping edge is fixedly connected to the inner peripheral wall of the edge beam assembly, and the other end extends towards the center side of the edge beam assembly; the front floor panel is arranged on the inner circumferential side of the edge beam assembly, the edge of the front floor panel is in threaded connection with the end, facing the battery tray, of the lap joint edge, the seat installation beam is arranged on the side, away from the battery tray, of the front floor panel, and the two ends of the seat installation beam are in threaded connection with the two opposite ends of the edge beam assembly respectively. According to the vehicle body framework structure and the vehicle, the problem that the high temperature resistance of the floor panel is poor due to the fact that the floor panel seals the liquid leakage hole through a patch or a blanking cap is solved.

Description

Technical Field

[0001] This application relates to the technical field of frame structures, and particularly to a body frame structure and a vehicle. Background Art

[0002] In the traditional connection, the floor panel is spot-welded to the body frame. Since the floor panel needs to be electrophoretically painted, more than a dozen liquid leakage holes need to be opened on the floor panel to timely drain the excess paint. Then, the liquid leakage holes are sealed by patches or plugs, but the high-temperature resistance of the patches and plugs is poor. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a body frame structure and a vehicle to solve the problem that the existing floor panel is sealed by patches or plugs for the liquid leakage holes, resulting in poor high-temperature resistance of the floor panel.

[0004] The body frame structure provided by this application includes side beam assemblies, seat mounting beams, a front floor panel, and a battery tray. The battery tray is used to install battery modules. The side beam assemblies surround the opening side of the battery tray and are screwed to the flanges on the outer peripheral side of the battery tray. One end of the side beam assembly away from the battery tray is provided with a lapping edge. One end of the lapping edge is fixedly connected to the inner peripheral wall of the side beam assembly, and the other end extends toward the center side of the side beam assembly. The front floor panel is arranged on the inner peripheral side of the side beam assembly. The edge of the front floor panel is screwed to one end of the lapping edge facing the battery tray. The seat mounting beam is arranged on the side of the front floor panel away from the battery tray, and both ends of the seat mounting beam are respectively screwed to the opposite ends of the side beam assembly.

[0005] In one embodiment, the flange is connected to the side beam assembly by hot melt self-tapping screws;

[0006] and / or, the front floor panel is connected to the lapping edge by hot melt self-tapping screws;

[0007] and / or, the seat mounting beam is connected to the side beam assembly by hot melt self-tapping screws.

[0008] In one embodiment, the side beam assembly includes a front cross beam, a first longitudinal beam, a second longitudinal beam, and a rear floor beam. The first longitudinal beam and the second longitudinal beam are arranged in parallel at intervals. Both ends of the front cross beam are respectively screwed to one ends of the first longitudinal beam and the second longitudinal beam. Both ends of the rear floor beam are respectively screwed to the other ends of the first longitudinal beam and the second longitudinal beam.

[0009] In one embodiment, one end of the rear floor beam away from the front cross beam protrudes along the direction from the battery tray to the front floor panel, so that the vertical height of the end of the rear floor beam away from the front cross beam is greater than the vertical height of the first longitudinal beam.

[0010] In one embodiment, an end of the front floor panel away from the front cross member is provided with an extension groove recessed in a direction away from the battery tray, and an opening of the extension groove faces the battery tray for accommodating a fuel tank.

[0011] In one embodiment, the rear floor beam includes a third longitudinal beam, an intermediate cross member, a fourth longitudinal beam, and a rear cross member connected in sequence. One end of the third longitudinal beam is connected to the first longitudinal beam, and the other end extends in a direction away from the front cross member. One end of the fourth longitudinal beam is connected to the second longitudinal beam, and the other end extends in a direction away from the front cross member. The intermediate cross member is disposed at an end of the rear floor beam close to the front cross member, and two ends of the intermediate cross member are respectively connected to the third longitudinal beam and the fourth longitudinal beam. The rear cross member is disposed at an end of the rear floor beam away from the front cross member, and two ends of the rear cross member are respectively connected to the third longitudinal beam and the fourth longitudinal beam.

[0012] In one embodiment, the seat mounting beam includes a first mounting beam, a second mounting beam, a third mounting beam, and a fourth mounting beam spaced apart in sequence along the direction from the front cross member to the rear cross member. Two ends of the first mounting beam, two ends of the second mounting beam, and two ends of the third mounting beam are respectively connected to the first longitudinal beam and the second longitudinal beam, and two ends of the fourth mounting beam are respectively connected to the third longitudinal beam and the fourth longitudinal beam.

[0013] In one embodiment, the overlapping edge and the side beam assembly are of an integrally formed structure;

[0014] And / or, the battery tray and the flanging are of an integrally formed structure.

[0015] In one embodiment, the vehicle body frame structure further includes a first sealing ring and a second sealing ring. The flanging of the battery tray is sealingly connected to the side beam assembly through the first sealing ring, and the front floor panel is sealingly connected to the overlapping edge through the second sealing ring.

[0016] The present application further provides a vehicle, which includes the vehicle body frame structure according to any one of the above embodiments.

[0017] Compared with the prior art, for the vehicle body frame structure and the vehicle provided by the present application, thus, by providing an overlapping edge on the side beam assembly, arranging the front floor panel between the seat mounting beam and the battery tray, and screwing the front floor panel to an end of the overlapping edge facing the battery tray, on the one hand, the front floor panel can play a role in separating the battery module and the passenger compartment, and on the other hand, the installation of the front floor panel will not affect the installation of the seat mounting beam and the side beam.

[0018] Furthermore, since the seat mounting beam, the front floor panel, and the battery tray are respectively directly or indirectly (through the overlapping edge) screwed to the side beam assembly, during the electrophoretic painting process, the side beam assembly, the seat mounting beam, the front floor panel, and the battery tray can be electrophoretically painted respectively, and then the side beam assembly, the seat mounting beam, the front floor panel, and the battery tray are assembled together.

[0019] In this way, the front floor panel does not need to be provided with liquid leakage holes by itself, so there is no need to seal the liquid leakage holes by patching or plugging. At this time, both the sealing performance and the high temperature resistance of the front floor panel can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 The top view of the body frame structure according to an embodiment provided by the present application;

[0022] Figure 2 is Figure 1 the cross-sectional view taken along line A-A shown;

[0023] Figure 3 The exploded view of the body frame structure according to an embodiment provided by the present application.

[0024] Reference numerals: 100, side beam assembly; 110, lapped edge; 120, front cross beam; 130, first longitudinal beam; 140, second longitudinal beam; 150, rear floor beam; 151, third longitudinal beam; 152, intermediate cross beam; 153, fourth longitudinal beam; 154, rear cross beam; 200, seat mounting beam; 210, first mounting beam; 220, second mounting beam; 230, third mounting beam; 240, fourth mounting beam; 300, front floor panel; 310, bulge; 400, battery tray; 410, flanging; 500, intermediate longitudinal beam; 610, first engine compartment beam; 620, second engine compartment beam; 710, first sealing ring; 720, second sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The traditional floor panel is spot-welded and fixed to the body frame, and the floor panel needs to be electrophoretically painted. In order to timely drain the excess paint, more than a dozen liquid leakage holes need to be opened on the floor panel. Then, the liquid leakage holes are sealed by patching or plugging, and the high temperature resistance of the patching and plugging is poor.

[0026] Please refer to Figures 1 - 3 , in order to solve the problem that the existing floor panel seals the liquid leakage holes by patching or plugging, resulting in poor high temperature resistance of the floor panel, the present application provides a body frame structure and a vehicle.

[0027] The vehicle body frame structure includes a side beam assembly 100, a seat mounting beam 200, a front floor panel 300 and a battery tray 400. The battery tray 400 is used to install a battery module (not shown), and a flange 410 is provided on the peripheral edge of the opening of the battery tray 400. The side beam assembly 100 is arranged around the opening side of the battery tray 400 and is screwed to the flange 410 on the outer peripheral side of the battery tray 400 (threadedly connected by fasteners).

[0028] In one embodiment, the vehicle body frame structure may be an aluminum alloy member.

[0029] In this way, the body frame structure has better expandability, excellent overall collision performance and better sealing performance.

[0030] But it is not limited to this. In other embodiments, the body frame structure may also be an iron alloy part.

[0031] like Figure 2 As shown, an overlapping edge 110 is provided at one end of the side beam assembly 100 away from the battery tray 400, one end of the overlapping edge 110 is fixedly connected to the inner peripheral wall of the side beam assembly 100, and the other end extends toward the center side of the side beam assembly 100 (that is, the geometric center of the entire side beam assembly 100). Preferably, the overlapping edge 110 is arranged parallel to the bottom wall of the battery tray 400, but is not limited thereto. In other embodiments, the overlapping edge 110 can also be arranged to be inclined relative to the bottom wall of the battery tray 400, and the inclination angle is between 1 degree and 10 degrees.

[0032] It should be noted that the interval between the screw holes on the overlapping edge 110 ranges from 60 mm to 200 mm, and preferably, the interval between adjacent screw holes is 100 mm.

[0033] The front floor panel 300 is disposed on the inner circumference of the side beam assembly 100, and the edge of the front floor panel 300 is screwed to one end of the overlapped edge 110 facing the battery tray 400. The seat mounting beam 200 is disposed on the side of the front floor panel 300 away from the battery tray 400, and the two ends of the seat mounting beam 200 are screwed to the opposite ends of the side beam assembly 100 respectively.

[0034] It should be noted that both ends of the seat mounting beam 200 can be directly connected to the main part of the side beam assembly 100, or can be indirectly connected to the side beam assembly 100 through the overlapping edge 110. The former has greater connection strength and load-bearing strength, and the latter is easier to connect.

[0035] Thus, by providing the lapping edge 110 on the side beam assembly 100 and arranging the front floor panel 300 between the seat mounting beam 200 and the battery tray 400, and screwing the front floor panel 300 to one end of the lapping edge 110 facing the battery tray 400, on the one hand, the front floor panel 300 can function to partition the battery module and the passenger compartment, and on the other hand, the installation of the front floor panel 300 will not affect the installation of the seat mounting beam 200 and the side beam.

[0036] Furthermore, since the seat mounting beam 200, the front floor panel 300, and the battery tray 400 are respectively screwed to the side beam assembly 100 directly or indirectly (through the lapping edge 110), during the electrophoretic painting process, the side beam assembly 100, the seat mounting beam 200, the front floor panel 300, and the battery tray 400 can be electrophoretically painted separately and then assembled together.

[0037] It should be noted that the reason why the front floor panel 300 cannot be electrophoretically painted first and then welded is that the paint surface will cause welding failure. Correspondingly, the connection strength of screwing is completely unaffected by the paint surface.

[0038] In this way, the front floor panel 300 does not need to be provided with liquid leakage holes on itself, so there is no need to seal the liquid leakage holes by patching or plugging. At this time, both the sealing performance and the high-temperature resistance of the front floor panel 300 can be significantly improved.

[0039] In one embodiment, the side beam assembly 100 is connected to the flanging 410 by hot melt self-tapping screws.

[0040] It should be noted that this is a cold forming process. The high-speed rotation of the motor is transmitted to the to-be-connected sheet material through the central tightening shaft of the equipment, and the self-tapping screw generates plastic deformation and is screwed to the to-be-connected sheet material (in this embodiment, the side beam assembly 100 and the flanging 410) through frictional heat generation.

[0041] With such a setting, the connection strength between the side beam assembly 100 and the battery tray 400 is greatly improved.

[0042] However, it is not limited to this. In other embodiments, the flanging 410 can also be connected to the side beam assembly 100 by riveting.

[0043] In one embodiment, the front floor panel 300 is connected to the lapping edge 110 by hot melt self-tapping screws.

[0044] With such a setting, the connection strength between the front floor panel 300 and the side beam assembly 100 is greatly improved.

[0045] However, not limited thereto, in other embodiments, the overlapping edge 110 can also be connected to the front floor panel 300 by riveting.

[0046] In one embodiment, the seat mounting beam 200 is connected to the side beam assembly 100 by heat melting self-tapping screws.

[0047] With such a setting, the connection strength between the seat mounting beam 200 and the side beam assembly 100 is greatly improved.

[0048] However, not limited thereto, in other embodiments, the seat mounting beam 200 can also be connected to the side beam assembly 100 by riveting.

[0049] In one embodiment, the overlapping edge 110 and the side beam assembly 100 are of an integrally formed structure.

[0050] In this way, the assembly process of the vehicle body frame structure is simplified, and the structural strength of the vehicle body frame structure is improved.

[0051] Specifically, in one embodiment, the overlapping edge 110 is processed on the side beam assembly 100 through an extrusion molding process. However, not limited thereto, in other embodiments, the overlapping edge 110 can also be processed on the side beam assembly 100 by integral casting molding or 3D printing molding.

[0052] However, not limited thereto, in other embodiments, the overlapping edge 110 and the side beam assembly 100 are of a welded structure.

[0053] Similarly, in one embodiment, the battery tray 400 and the flanging 410 are of an integrally formed structure.

[0054] In this way, the assembly process of the vehicle body frame structure is simplified, and the structural strength of the vehicle body frame structure is improved.

[0055] Specifically, in one embodiment, the battery tray 400 is bent to form the flanging 410 through a sheet metal process. However, not limited thereto, in other embodiments, the flanging 410 can also be processed on the battery tray 400 by stamping.

[0056] However, not limited thereto, in other embodiments, the battery tray 400 and the flanging 410 are of a welded structure.

[0057] In one embodiment, the vehicle body frame structure further includes a first sealing ring 710 and a second sealing ring 720. The flanging 410 of the battery tray 400 is sealingly connected to the side beam assembly 100 through the first sealing ring 710, and the front floor panel 300 is sealingly connected to the overlapping edge 110 through the second sealing ring 720.

[0058] In this way, the overall sealing performance of the vehicle body frame structure is effectively improved.

[0059] In one embodiment, if Figure 1 and Figure 3 As shown, the side beam assembly 100 includes a front cross beam 120, a first longitudinal beam 130, a second longitudinal beam 140 and a rear floor beam 150. The first longitudinal beam 130 and the second longitudinal beam 140 are arranged in parallel and spaced apart. Both ends of the front cross beam 120 are respectively screwed to one end of the first longitudinal beam 130 and the second longitudinal beam 140, and both ends of the rear floor beam 150 are respectively screwed to the other end of the first longitudinal beam 130 and the second longitudinal beam 140.

[0060] Such arrangement can facilitate the assembly and disassembly of the side beam assembly 100 .

[0061] Furthermore, in one embodiment, the screw connection inside the side beam assembly 100 may also be connected by hot-melt self-tapping screws or by riveting.

[0062] In one embodiment, if Figure 1 and Figure 3 As shown, one end of the rear floor beam 150 away from the front cross beam 120 is protruded along the direction from the battery tray 400 to the front floor panel 300 (that is, in the direction away from the ground), so that the vertical height of the end of the rear floor beam 150 away from the front cross beam 120 is greater than the vertical height of the first longitudinal beam 130 (or the second longitudinal beam 140).

[0063] The motor is installed below the rear floor beam 150 . Therefore, this arrangement increases the installation space of the motor and facilitates the assembly and disassembly of the motor.

[0064] In one embodiment, an expansion slot is provided at one end of the front floor panel 300 away from the front cross beam 120 and is recessed in a direction away from the battery tray 400. An end of the expansion slot that is away from the battery tray 400 protrudes from the front floor panel 300 to form a bulge 310. The opening of the expansion slot faces the battery tray 400 to accommodate the fuel tank.

[0065] This is conducive to the layout of extended-range vehicles.

[0066] It should be noted that when the vehicle is a pure electric vehicle, the battery tray 400 is a tray structure without a cover, which forms a closed battery compartment after being assembled with parts such as the front floor panel 300 for assembling battery modules; when the vehicle is an extended-range vehicle, the battery modules are assembled into a battery pack, which is located in the middle or to one side below the front floor panel 300, and the gap between the battery pack and the first longitudinal beam 130 and between the battery pack and the second longitudinal beam 140 can be used to arrange exhaust pipes and other pipelines.

[0067] In one embodiment, if Figure 1 and Figure 3As shown, the rear floor beam 150 includes a third longitudinal beam 151, an intermediate cross beam 152, a fourth longitudinal beam 153, and a rear cross beam 154 that are sequentially connected. One end of the third longitudinal beam 151 is connected to the first longitudinal beam 130, and the other end extends in a direction away from the front cross beam 120. One end of the fourth longitudinal beam 153 is connected to the second longitudinal beam 140, and the other end extends in a direction away from the front cross beam 120.

[0068] The intermediate cross beam 152 is disposed at one end of the rear floor beam 150 close to the front cross beam 120, and both ends of the intermediate cross beam 152 are respectively connected to the third longitudinal beam 151 and the fourth longitudinal beam 153. The rear cross beam 154 is disposed at one end of the rear floor beam 150 away from the front cross beam 120, and both ends of the rear cross beam 154 are respectively connected to the third longitudinal beam 151 and the fourth longitudinal beam 153.

[0069] With such a setting, it is beneficial to improve the structural strength of the rear floor beam 150.

[0070] In one embodiment, as Figure 1 and Figure 3 shown, the seat mounting beam 200 includes a first mounting beam 210, a second mounting beam 220, a third mounting beam 230, and a fourth mounting beam 240 that are sequentially and spaced apart along the direction from the front cross beam 120 to the rear cross beam 154. Among them, both ends of the first mounting beam 210, both ends of the second mounting beam 220, and both ends of the third mounting beam 230 are respectively connected to the first longitudinal beam 130 and the second longitudinal beam 140, and both ends of the fourth mounting beam 240 are respectively connected to the third longitudinal beam 151 and the fourth longitudinal beam 153.

[0071] It should be noted that the first mounting beam 210 and the second mounting beam 220 are used to mount the front row seats, the third mounting beam 230 is used to mount the second row seats, and the fourth mounting beam 240 is used to mount the third row seats.

[0072] Moreover, the positions of the first mounting beam 210, the second mounting beam 220, the third mounting beam 230, and the fourth mounting beam 240 are all adjustable, which can be achieved by arranging more screw holes.

[0073] In one embodiment, as Figure 1 and Figure 3 shown, the vehicle body frame structure further includes an intermediate longitudinal beam 500. The intermediate longitudinal beam 500 is disposed at a position between the first longitudinal beam 130 and the second longitudinal beam 140, and the intermediate longitudinal beam 500 is sequentially connected to the front cross beam 120, the first mounting beam 210, and the second mounting beam 220.

[0074] In one embodiment, the vehicle body frame structure further includes a first engine compartment beam 610 and a second engine compartment beam 620. The first engine compartment beam 610 and the second engine compartment beam 620 are respectively screwed to the front cross beam 120.

[0075] The present application also provides a vehicle, which includes the body frame structure described in any one of the above embodiments.

[0076] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0077] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

[0078] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 should not be construed as limiting the present application.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0080] In the present application, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a threaded connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0081] In this application, unless otherwise clearly specified or defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0082] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0083] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific implementations and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

Claims

1. A vehicle body frame structure, characterized in that: The invention comprises a side beam assembly (100), a seat mounting beam (200), a front floor panel (300) and a battery tray (400), wherein the battery tray (400) is used to install a battery module, and the side beam assembly (100) is arranged around an opening side of the battery tray (400) and is screwed to a flange (410) on the outer peripheral side of the battery tray (400); An overlapping edge (110) is provided at one end of the side beam assembly (100) away from the battery tray (400), one end of the overlapping edge (110) is fixedly connected to the inner peripheral wall of the side beam assembly (100), and the other end extends toward the center side of the side beam assembly (100); The front floor panel (300) is arranged on the inner peripheral side of the side beam assembly (100), and the edge of the front floor panel (300) is screwed to one end of the overlapping edge (110) facing the battery tray (400), and the seat mounting beam (200) is arranged on the side of the front floor panel (300) away from the battery tray (400), and the two ends of the seat mounting beam (200) are respectively screwed to the opposite ends of the side beam assembly (100).

2. The vehicle body frame structure according to claim 1, characterized in that: The flange (410) is connected to the side beam assembly (100) via hot-melt self-tapping screws; And / or, the front floor panel (300) is connected to the overlapping edge (110) by hot-melt self-tapping screws; And / or, the seat mounting beam (200) is connected to the side beam assembly (100) via hot-melt self-tapping screws.

3. The vehicle body frame structure according to claim 1, characterized in that: The side beam assembly (100) comprises a front cross beam (120), a first longitudinal beam (130), a second longitudinal beam (140) and a rear floor beam (150); the first longitudinal beam (130) and the second longitudinal beam (140) are arranged in parallel and spaced apart; two ends of the front cross beam (120) are respectively screwed to one end of the first longitudinal beam (130) and the second longitudinal beam (140); two ends of the rear floor beam (150) are respectively screwed to the other end of the first longitudinal beam (130) and the second longitudinal beam (140).

4. The vehicle body frame structure according to claim 3, characterized in that: One end of the rear floor beam (150) away from the front cross beam (120) is protruding along the direction from the battery tray (400) to the front floor panel (300), so that the vertical height of the end of the rear floor beam (150) away from the front cross beam (120) is greater than the vertical height of the first longitudinal beam (130).

5. The vehicle body frame structure according to claim 3, characterized in that: An expansion slot is provided at one end of the front floor panel (300) away from the front cross beam (120) and is recessed in a direction away from the battery tray (400), and the opening of the expansion slot faces the battery tray (400) for accommodating an oil tank.

6. The vehicle body frame structure according to claim 3, characterized in that: The rear floor beam (150) comprises a third longitudinal beam (151), an intermediate cross beam (152), a fourth longitudinal beam (153) and a rear cross beam (154) which are connected in sequence, wherein one end of the third longitudinal beam (151) is connected to the first longitudinal beam (130) and the other end extends in a direction away from the front cross beam (120), and one end of the fourth longitudinal beam (153) is connected to the second longitudinal beam (140) and the other end extends in a direction away from the front cross beam (120); The middle cross beam (152) is arranged at one end of the rear floor beam (150) close to the front cross beam (120), and two ends of the middle cross beam (152) are respectively connected to the third longitudinal beam (151) and the fourth longitudinal beam (153); the rear cross beam (154) is arranged at one end of the rear floor beam (150) away from the front cross beam (120), and two ends of the rear cross beam (154) are respectively connected to the third longitudinal beam (151) and the fourth longitudinal beam (153).

7. The vehicle body frame structure according to claim 6, characterized in that: The seat mounting beam (200) comprises a first mounting beam (210), a second mounting beam (220), a third mounting beam (230) and a fourth mounting beam (240) which are sequentially spaced and distributed along a direction from the front cross beam (120) to the rear cross beam (154); both ends of the first mounting beam (210), both ends of the second mounting beam (220) and both ends of the third mounting beam (230) are respectively connected to the first longitudinal beam (130) and the second longitudinal beam (140); and both ends of the fourth mounting beam (240) are respectively connected to the third longitudinal beam (151) and the fourth longitudinal beam (153).

8. The vehicle body frame structure according to claim 1, characterized in that: The overlapping edge (110) and the edge beam assembly (100) are an integrally formed structure; And / or, the battery tray (400) and the flange (410) are an integrally formed structure.

9. The vehicle body frame structure according to claim 1, characterized in that: It also includes a first sealing ring (710) and a second sealing ring (720), wherein the flange (410) of the battery tray (400) is sealed to the side beam assembly (100) via the first sealing ring (710), and the front floor panel (300) is sealed to the overlapping edge (110) via the second sealing ring (720).

10. A vehicle, characterized in that: It comprises a vehicle body frame structure as described in any one of claims 1 to claim 9.

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