Platformization rear floor assembly structure and vehicle

Abstract

The utility model provides a platform rear floor assembly structure and a vehicle, and belongs to the technical field of automobiles, the platform rear floor assembly structure comprises a framework assembly and a panel assembly; the framework assembly comprises two longitudinal beams, a front cross beam and a middle cross beam, and a front side area and a rear side area are defined by the two longitudinal beams, the front cross beam and the middle cross beam; the panel assembly comprises a middle panel, a rear panel and a middle-rear connecting plate, and the middle panel is located in the front side area and connected with the front half section of the longitudinal beam; the rear panel is located in the rear side area and connected with the rear half section of the longitudinal beam. The middle rear connecting plate is lapped on the middle cross beam and is connected with the middle panel and the rear panel; and the total length of the panel assembly is adjusted by the width change of the middle and rear connecting plate. According to the platform rear floor assembly structure, the rear overhang is integrated into the rear floor assembly, and different rear floor assemblies are selected according to different requirements of different vehicle types in the later period, so that rapid replacement is achieved, the updating speed is increased, the cost is reduced, and the market competitiveness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and more specifically, relates to a platformized rear floor assembly structure and a vehicle. Background Technique

[0002] With the development of technology, more and more manufacturers have launched new models on the market, and new models are emerging faster and faster. Therefore, it is particularly important for automobile enterprises to be able to launch new models or replacement and upgraded models faster. Therefore, the platform and architecture of the whole vehicle are particularly important. The change points of the whole vehicle platform mainly focus on drive, power, human-machine, wheelbase, chassis suspension, front and rear overhangs in vehicle length, seats, luggage compartments, and motion safety. Among these, except for the front overhang of the vehicle length, the rest are strongly related to the rear floor. Therefore, the rear floor assembly is crucial in the platform architecture of the whole vehicle. Most of the rear floor assembly platforms on the market are integral, dedicated to specific models, and cannot achieve platform sharing among models, which will result in a long development cycle, a large number of parts, an increase in the cost of the whole vehicle, an increase in the maintenance cost for consumers, and a reduction in market competitiveness. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a platformized rear floor assembly structure and a vehicle, aiming to disassemble the parts of the rear floor assembly to achieve the purpose of rapid replacement.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a platformized rear floor assembly structure and a vehicle, including a skeleton assembly and a panel assembly, and the panel assembly is fixed on the skeleton assembly;

[0005] The skeleton assembly includes two longitudinal beams, a front cross beam and a middle cross beam. The two longitudinal beams are arranged at intervals. The two ends of the front cross beam are respectively connected to the front ends of the two longitudinal beams. The two ends of the middle cross beam are respectively connected to the middle parts of the two longitudinal beams. The front cross beam and the middle cross beam are parallel; the two longitudinal beams, the front cross beam and the middle cross beam enclose a front side area and a rear side area;

[0006] The panel assembly includes a middle panel, a rear panel and a middle-rear connecting plate. The middle panel is located in the front side area and is connected to the front half section of the longitudinal beam; the rear panel is located in the rear side area and is connected to the rear half section of the longitudinal beam; the middle-rear connecting plate overlaps on the middle cross beam and connects the middle panel and the rear panel; the width change of the middle-rear connecting plate is used to adjust the total length of the panel assembly.

[0007] The beneficial effects of the platformized rear floor assembly structure provided by the present utility model are as follows: Compared with the prior art, the platformized rear floor assembly structure of the present utility model realizes the change of the rear overhang length by increasing or decreasing the width of the middle and rear connecting plates; integrates the rear overhang into the rear floor assembly, and selects different rear floor assemblies according to the different requirements of different vehicle models in the later stage to achieve rapid replacement, improve the replacement speed, reduce costs and enhance market competitiveness.

[0008] As another embodiment of the present application, the longitudinal beam includes a front section beam, a middle section beam and a rear section beam sequentially connected from front to back. The front cross beam is connected to the front end of the front section beam, and the middle cross beam is connected to the middle part of the middle section beam.

[0009] Both sides of the rear panel are lapped on the two rear section beams, and the front end of the rear panel is lapped on the middle cross beam.

[0010] The beneficial effect of this embodiment is that the longitudinal beams on both sides are divided into a front section beam, a middle section beam and a rear section beam, and are divided into multiple parts to facilitate individual adjustment and replacement.

[0011] As another embodiment of the present application, the middle cross beam is provided with mounting holes for connecting the rear panel; the length change of the rear section beam behind the middle cross beam is used to adjust the total length of the frame assembly.

[0012] The beneficial effect of this embodiment is that the width edge of the middle and rear connecting plates is equal to the length change of the rear section beam, thereby ensuring the stable state of the rear floor assembly.

[0013] As another embodiment of the present application, the width of the front cross beam corresponds to the shortest wheelbase; both sides of the front cross beam are provided with detachable connecting plates, and the width direction of the connecting plates is the same as the width direction of the front cross beam; a front beam reinforcement plate is arranged on the front cross beam, and both ends of the front beam reinforcement plate are provided with end reinforcement plates.

[0014] The beneficial effect of this embodiment is that adding connecting plates to the front section of the front cross beam can increase the width of the front cross beam, thereby realizing the change of the wheelbase.

[0015] As another embodiment of the present application, one side of the middle panel close to the front cross beam has two mounting parts for fixing the seat, and the two mounting parts are symmetrically arranged along the center line, and the mounting parts are used for fixing the seat.

[0016] The beneficial effect of this embodiment is that the structure of the mounting part is adapted to large seats.

[0017] As another embodiment of the present application, the front part of the middle panel has an inclined area, the height of the upper end surface of the inclined area gradually decreases from front to back, and the front cross beam and the front beam reinforcement plate are connected to the front end of the inclined area; the installation part is located within the inclined area, and there is a downward anti-submergence bracket above the installation part, and the upper end surface of the anti-submergence bracket gradually slopes downward from front to back.

[0018] The beneficial effects of this embodiment are: raising the front cross beam, forming an inclined area at the front end of the middle panel, and arranging an anti-submergence bracket on the installation part to adapt to a standard seat cushion seat.

[0019] As another embodiment of the present application, the circumferential edge of the anti-submergence bracket has a downward flanging, and the flanging is connected to the middle panel; the middle part of the anti-submergence bracket has an opening.

[0020] The beneficial effects of this embodiment are: the anti-submergence bracket is fixed to the middle panel to ensure the installation stability of the standard seat cushion seat.

[0021] As another embodiment of the present application, the rear panel has a sunken pit that depresses downward, and the height of the bottom surface of the sunken pit rises or falls to adjust the depth of the sunken pit.

[0022] The beneficial effects of this embodiment are: adapting to the size requirements of the luggage compartment by changing the depth of the sunken pit.

[0023] As another embodiment of the present application, there is a reinforcement plate group at the bottom of the inner groove of the longitudinal beam. The reinforcement plate group includes a front reinforcement plate, a middle reinforcement plate, and a rear reinforcement plate corresponding to the front section beam, the middle section beam, and the rear section beam in sequence. The middle reinforcement plate includes two plate bodies connected in sequence; the thickness and length of the rear reinforcement plate can both be adjusted according to vehicle requirements.

[0024] The beneficial effects of this embodiment are: meeting the safety level standard by adjusting the thickness and length of the rear reinforcement plate.

[0025] A vehicle is also provided, including the above-mentioned platformized rear floor assembly structure.

[0026] The beneficial effects of the vehicle provided by the present utility model are as follows: compared with the prior art, when the vehicle of the present utility model designs the platform at the beginning, different seat, wheelbase, rear overhang and other schemes are all integrated into the rear floor assembly. According to the different requirements of different vehicle models in the later stage, different rear floor assemblies are selected to achieve rapid replacement, rapid R & D, rapid market launch, improve the replacement speed, reduce costs, and improve market competitiveness. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 The top view of the platformized rear floor assembly structure provided by the embodiment of the present utility model;

[0029] Figure 2 The side view of the platformized rear floor assembly structure provided by the embodiment of the present utility model;

[0030] Figure 3 The top view of the skeleton assembly provided by the embodiment of the present utility model.

[0031] In the figure: 1, rear panel; 2, middle panel; 3, anti-submergence bracket; 4, middle-rear connecting plate; 5, sunken pit; 6, front beam reinforcement plate; 7, front section beam; 8, middle section beam; 9, rear section beam; 10, front cross beam; 11, middle cross beam; 12, rear section of the sill beam. Detailed implementation manners

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clearly understood, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] Please refer to Figures 1 to 3 , and now the platformized rear floor assembly structure and vehicle provided by the present utility model will be described. The platformized rear floor assembly structure includes a skeleton assembly and a panel assembly, and the panel assembly is fixed on the skeleton assembly; the skeleton assembly includes two longitudinal beams, a front cross beam 10 and a middle cross beam 11. The two longitudinal beams are arranged at intervals. The two ends of the front cross beam 10 are respectively connected to the front ends of the two longitudinal beams. The two ends of the middle cross beam 11 are respectively connected to the middle parts of the two longitudinal beams. The front cross beam 10 and the middle cross beam 11 are parallel; the two longitudinal beams, the front cross beam 10 and the middle cross beam 11 enclose a front side area and a rear side area; the panel assembly includes a middle panel 2, a rear panel 1 and a middle-rear connecting plate 4. The middle panel 2 is located in the front side area and is connected to the front half section of the longitudinal beam; the rear panel 1 is located in the rear side area and is connected to the rear half section of the longitudinal beam; the middle-rear connecting plate 4 overlaps on the middle cross beam 11 and connects the middle panel 2 and the rear panel 1; the width change of the middle-rear connecting plate 4 is used to adjust the total length of the panel assembly.

[0034] Compared with the prior art, the platformized rear floor assembly structure provided by the present utility model sets both the skeleton and the panel as split structures composed of multiple modules. The skeleton assembly is divided into longitudinal beams and two cross beams, and the support is realized through the longitudinal beams and the two cross beams. The panel assembly is divided into a middle panel 2, a rear panel 1, and a middle-rear connecting plate 4, and the connection between the middle panel 2 and the rear panel 1 is realized through the middle-rear connecting plate 4. During vehicle production, by increasing or decreasing the width of the middle-rear connecting plate 4, the change of the rear overhang length is realized. The rear overhang is integrated into the rear floor assembly, and different rear floor assemblies are selected according to different requirements of different vehicle models in the later stage, so as to achieve rapid replacement, improve the replacement speed, reduce costs, and enhance market competitiveness.

[0035] The longitudinal beam includes a front section beam 7, a middle section beam 8, and a rear section beam 9 that are connected in sequence from front to back. The front cross beam 10 is connected to the front end of the front section beam 7, and the middle cross beam 11 is connected to the middle part of the middle section beam 8. The two sides of the rear panel 1 are lapped on the two rear section beams 9, and the front end of the rear panel 1 is lapped on the middle cross beam 11. The longitudinal beams on both sides are divided into a front section beam 7, a middle section beam 8, and a rear section beam 9, and are divided into multiple split parts for easy individual adjustment and replacement.

[0036] The middle cross beam 11 is provided with mounting holes for connecting the rear panel 1; the length change of the rear section beam 9 behind the middle cross beam 11 is used to adjust the total length of the skeleton assembly. To adapt to the adjustment of the rear overhang length, the total length of the rear floor assembly is adapted by separately increasing or decreasing the length of the rear section beam 9.

[0037] When adjustment is required, first replace the rear section beam 9, and then replace the middle-rear connecting plate 4 so that the width edge of the middle-rear connecting plate 4 is equal to the length change of the rear section beam 9. Thereby ensuring the stable state of the rear floor assembly.

[0038] The front cover plate and the rear cover plate are covered above the longitudinal beam. The front end of the front cover plate extends to the front cross beam 10, and the rear end of the front cover plate extends to the tail of the middle section beam 8. The front end of the rear cover plate is connected to the rear end of the front cover plate, and the tail of the rear cover plate extends to the tail end of the rear section beam 9. There is a rear repair plate extending outward on the outside of the tail of the rear cover plate.

[0039] The platformized rear floor assembly structure not only requires integrating the rear overhang structure into the rear floor assembly, but also requires integrating multiple structures such as wheelbase, seats, luggage compartment, and motion safety into the rear floor assembly.

[0040] In some possible embodiments, please refer to Figures 1 to 3 , for the change of the wheelbase, the length of the front cross beam 10 corresponds to the shortest wheelbase; both sides of the front cross beam 10 are provided with detachable connecting plates, and the width direction of the connecting plates is the same as the width direction of the front cross beam 10; a front beam reinforcing plate 6 is arranged on the front cross beam 10, and both ends of the front beam reinforcing plate 6 are provided with end reinforcing plates.

[0041] The change in wheelbase is related to the width of the front crossmember 10. The front crossmember 10 is transversely connected to the longitudinal beam, and its width direction is consistent with the length direction of the longitudinal beam; a connecting plate is added to the front section of the front crossmember 10, which can increase the width of the front crossmember 10, thereby realizing the change in wheelbase.

[0042] During production, first define the width of the wheelbase that can be accommodated by the platform according to the previous plan, define the shortest and longest wheelbases, and the front crossmember 10 is manufactured according to the shortest wheelbase. When at the shortest wheelbase, the front crossmember 10 directly overlaps with the front floor; after the wheelbase changes, a connecting plate is added to the front end of the front crossmember 10, the front end of the connecting plate is connected to the front floor, and the front crossmember 10 overlaps with the middle floor to realize the change in wheelbase. The connecting plate fits with the front crossmember 10, and the two form a load-bearing body, which is convenient for the overlapping and fixing of the middle panel 2, and both ends of the connecting plate and both ends of the front crossmember 10 are connected to the rear section 12 of the sill beam.

[0043] End strengthening plates are installed at both ends of the front beam strengthening plate 6, and the end strengthening plates overlap with the rear section 12 of the sill beam connected to both ends of the front crossmember 10. When adding a connecting plate, the width of the end strengthening plate changes accordingly.

[0044] In some possible embodiments, please refer to Figures 1 to 3 , for seat changes, there are two mounting parts on one side of the middle panel 2 close to the front crossmember 10. The two mounting parts are symmetrically arranged along the center line, and the mounting parts are at the same height as the middle panel 2 for fixing the seat. According to the seat plan of the platform, define the configuration selection of the seat, whether it is a large cushion seat or a standard cushion seat. When using a large cushion seat, the front and middle parts of the body middle panel 2 are at the same height, and the body has no anti-submergence structure, and the large cushion seat itself comes with anti-submergence. The mounting parts are at the same height as the middle panel 2 for adapting to the installation of the large cushion seat.

[0045] When selecting a standard cushion seat, the front part of the middle panel 2 has an inclined area, and the height of the upper end surface of the inclined area gradually decreases from front to back. The front crossmember 10 and the front beam strengthening plate 6 are connected to the front end of the inclined area; the mounting parts are located in the inclined area, and there is an anti-submergence bracket 3 above the mounting parts, and the upper end surface of the anti-submergence bracket 3 gradually slopes downward from front to back. That is, when selecting a standard cushion seat, first raise the front crossmember 10 and the front end of the longitudinal beam, and at the same time, the front end of the body middle panel 2 is locally raised to form an inclined area, and an anti-submergence bracket 3 is added to the body. Under the action of the inclined area, the upper end surface of the anti-submergence bracket 3 maintains an inclined state.

[0046] Due to the need for seat installation, there are two mounting parts arranged at intervals along the width direction of the rear floor assembly. Correspondingly, when the anti-submergence bracket 3 needs to be installed, there are also two anti-submergence brackets 3 installed.

[0047] The circumferential edge of the anti-submergence bracket 3 has a downward flange, and the flange is connected to the middle panel 2; the middle part of the anti-submergence bracket 3 has an opening. The anti-submergence bracket 3 is a plate structure, with its middle part protruding upward. The circumferential part of the anti-submergence bracket 3 has a downward flange, and the edge of the flange fits on the middle panel 2. The flange is fixedly welded to the middle panel 2 to ensure the installation stability of the standard cushion seat.

[0048] In addition, a child seat hook mounting plate is provided at the rear of the middle panel 2. There are four child seat hook mounting plates arranged at intervals in the transverse direction. Two of them are located on the middle panel 2, and the other two are respectively located on the front covers covered by the upper layers of the middle section beams 8 on both sides of the middle panel 2. The four child seat hook mounting plates are located at the front end of the middle rear connecting plate 4.

[0049] In response to the size change of the luggage compartment, the rear panel 1 has a sunken pit 5 with a downward depression, and the height of the bottom surface of the sunken pit 5 rises or falls to adjust the depth of the sunken pit 5. According to the preliminary plan, as well as the styling and vehicle model definition, different luggage compartment sizes of the platform are defined by deepening or shallowing the sunken pit 5 of the rear floor panel, so as to realize the change of the luggage compartment volume.

[0050] When the depth of the luggage compartment needs to change, there is no need to change the skeleton assembly. Only the rear panel 1 is replaced, and the rear panel 1 with different depths of the sunken pit 5 is selected to achieve the effect of changing the depth of the luggage compartment.

[0051] In some possible embodiments, please refer to Figures 1 to 3 , in response to the change of the safety level, there is a reinforcing plate group at the bottom of the inner groove of the longitudinal beam. The reinforcing plate group includes a front reinforcing plate, a middle reinforcing plate and a rear reinforcing plate corresponding to the front section beam 7, the middle section beam 8 and the rear section beam 9 in sequence. The middle reinforcing plate includes two plate bodies connected in sequence; the thickness and length of the rear reinforcing plate can be adjusted according to vehicle requirements.

[0052] According to the preliminary plan, as well as the styling and vehicle model definition, the safety collision level of the platform is defined. Whether it initially meets the five-star requirements or not, the vehicle body needs to meet the reserved five-star safety collision to cope with the rapid changes in the later market. Therefore, the existence of the rear reinforcing plate on the outer side of the rear section beam 9 of the longitudinal beam is extremely important. When the safety level is defined as the national standard entry, the rear reinforcing plate can be cancelled or changed to a thinner material thickness.

[0053] When the vehicle needs to meet the five-star safety in the later stage, the strength of the rear reinforcing plate can be improved in two forms. First, increase the material thickness of the rear reinforcing plate; second, keep the thickness of the rear reinforcing plate unchanged, make the maximum length of the rear reinforcing plate, and adjust the length of this reinforcing plate according to different safety collision levels.

[0054] The front section beam 7, the middle section beam 8 and the rear section beam 9 are all formed by bending a plate structure into a U-shaped structure with the notch facing upward, and an inner groove is formed in the front section beam 7, the middle section beam 8 and the rear section beam 9.

[0055] The rear reinforcement plate is attached to the bottom of the inner groove of the rear beam 9. Increasing its thickness or length can improve the strength of the reinforcement plate and the strength of the rear beam 9, thereby ensuring that the safety level of the vehicle body meets the requirements.

[0056] A vehicle is also provided that adopts the above-mentioned platformized rear floor assembly structure.

[0057] Compared with the prior art, the vehicle provided by the present invention has all the beneficial effects of the above-mentioned platformized rear floor assembly structure. During vehicle production, the length of the rear overhang can be changed by increasing or decreasing the width of the middle and rear connecting plate 4. In addition, the present invention also decomposes the components of the rear floor assembly in detail. At the beginning of the platform construction design, different seat, wheelbase, rear overhang and other schemes are all integrated into the rear floor assembly. According to the different requirements of different vehicle models in the later stage, different rear floor assemblies are selected to achieve rapid replacement, rapid research and development, rapid market launch, improve the replacement speed, reduce costs, and improve market competitiveness.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The structure of the platformized rear floor assembly is characterized in that It includes a frame assembly and a panel assembly, and the panel assembly is fixed on the frame assembly; The frame assembly includes two longitudinal beams, a front cross beam (10) and a middle cross beam (11). The two longitudinal beams are arranged at intervals. The two ends of the front cross beam (10) are respectively connected to the front ends of the two longitudinal beams. The two ends of the middle cross beam (11) are respectively connected to the middle parts of the two longitudinal beams. The front cross beam (10) and the middle cross beam (11) are parallel. The two longitudinal beams, the front cross beam (10) and the middle cross beam (11) enclose a front side area and a rear side area; The panel assembly includes a middle panel (2), a rear panel (1) and a middle-rear connecting plate (4). The middle panel (2) is located in the front side area and is connected to the front half section of the longitudinal beam. The rear panel (1) is located in the rear side area and is connected to the rear half section of the longitudinal beam. The middle-rear connecting plate (4) overlaps on the middle cross beam (11) and connects the middle panel (2) and the rear panel (1). The width change of the middle-rear connecting plate (4) is used to adjust the total length of the panel assembly.

2. The platformized rear floor assembly structure according to claim 1, wherein, The longitudinal beam includes a front section beam (7), a middle section beam (8) and a rear section beam (9) connected in sequence from front to back. The front cross beam (10) is connected to the front end of the front section beam (7). The middle cross beam (11) is connected to the middle part of the middle section beam (8); The two sides of the rear panel (1) overlap on the two rear section beams (9), and the front end of the rear panel (1) overlaps on the middle cross beam (11).

3. The platformized rear floor assembly structure according to claim 2, wherein The middle cross beam (11) is provided with mounting holes for connecting the rear panel (1). The length change of the rear section beam (9) behind the middle cross beam (11) is used to adjust the total length of the frame assembly.

4. The platformized rear floor assembly structure according to claim 2, wherein The width of the front cross beam (10) corresponds to the shortest wheelbase. The two sides of the front cross beam (10) are provided with detachable connecting plates. The width direction of the connecting plates is the same as the width direction of the front cross beam (10). The front cross beam (10) is provided with a front beam reinforcement plate (6), and the two ends of the front beam reinforcement plate (6) are provided with end reinforcement plates.

5. The platformized rear floor assembly structure according to claim 4, wherein, One side of the middle panel (2) close to the front cross beam (10) is provided with two mounting parts for fixing seats. The two mounting parts are symmetrically arranged along the center line, and the mounting parts are of the same height as the middle panel (2).

6. The platformized rear floor assembly structure according to claim 5, characterized in that, The front part of the middle panel (2) has an inclined area. The height of the upper end surface of the inclined area gradually decreases from front to back. The front cross beam (10) and the front beam reinforcement plate (6) are connected to the front end of the inclined area. The mounting parts are located in the inclined area, and a anti-submergence bracket (3) is arranged above the mounting parts. The upper end surface of the anti-submergence bracket (3) gradually slopes downward from front to back.

7. The platformized rear floor assembly structure according to claim 6, characterized in that, The circumferential edge of the anti-submergence bracket (3) has a downward flange, and the flange is connected to the middle panel (2). The middle part of the anti-submergence bracket (3) has an opening.

8. The platformized rear floor assembly structure according to claim 2, characterized in that, The rear panel (1) has a sunken pit (5) with a downward depression. The height of the bottom surface of the sunken pit (5) rises or falls to adjust the depth of the sunken pit (5).

9. The platformized rear floor assembly structure according to claim 2, characterized in that, There is a reinforcing plate group at the bottom of the inner groove of the longitudinal beam. The reinforcing plate group includes a front reinforcing plate, a middle reinforcing plate, and a rear reinforcing plate corresponding to the front section beam (7), the middle section beam (8), and the rear section beam (9) in sequence. The middle reinforcing plate includes two plate bodies connected in sequence; the thickness and length of the rear reinforcing plate can both be adjusted according to vehicle requirements.

10. A vehicle, characterized in that, The platformized rear floor assembly structure described in any one of claims 1-9 is adopted.

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