Rear floor framework and vehicle

Abstract

The utility model relates to a rear floor framework and a vehicle, the rear floor framework comprises a longitudinal beam part, a cross beam part, a reinforcing beam and an anti-collision part, the longitudinal beam part and the cross beam part form an integrally formed frame structure, the reinforcing beam is connected with the longitudinal beam part in the transverse direction and is located on the vertical bisector of the longitudinal beam part, and the anti-collision part is located on the reinforcing beam. The anti-collision part is detachably connected to the rear side of the longitudinal beam part. The rear floor framework is composed of the integrally-formed frame structure, the transversely-connected reinforcing beams and the detachable anti-collision parts, the structural strength, the damping effect and the safety of the rear floor framework are improved, meanwhile, the installation and maintenance procedures of the rear floor framework are simplified, and space utilization is optimized.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular to a rear floor framework and a vehicle. BACKGROUND

[0002] In the process of vehicle production and manufacturing, in order to meet the load bearing requirements of the vehicle body and have high strength, high torsional stiffness, fatigue durability and excellent crash performance, the vehicle usually adopts a complex structure design and multiple high-strength materials. In terms of structural strength, by increasing the number of parts and using special welding processes, the rear floor framework can effectively bear and support important functions such as the vehicle body, the floor, the seat, the suspension system, the trunk and the rear bumper beam, and can also deform itself to reduce the damage to passengers and power battery systems in a crash, to a certain extent, to ensure safety. In terms of shock absorption effect, it relies on complex shock absorption structures and cushioning materials to better filter the vibrations from the road.

[0003] However, in the related art, the complex structure and numerous parts result in a complicated installation process, requiring professional technicians and a large amount of installation time, and in the later maintenance, the difficulty of troubleshooting and replacing parts is also greatly increased. At the same time, the complex structure occupies a large amount of space, which is not conducive to the effective use of the interior space of the vehicle, and cannot meet the current consumer demand for automobile space diversification and maximum utilization. CONTENT OF THE INVENTION

[0004] The purpose of the present disclosure is to provide a rear floor framework and a vehicle to at least partially solve the technical problems existing in the related art.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a rear floor framework, comprising a longitudinal beam part, a cross beam part, a reinforcing beam and a crash part, wherein the longitudinal beam part and the cross beam part are configured as an integrally formed frame structure, the reinforcing beam is connected to the longitudinal beam part in the transverse direction and is located at the position of the symmetry axis of the frame structure, and the crash part is detachably connected to the rear side of the longitudinal beam part.

[0006] Optionally, the longitudinal beam part comprises two longitudinal beams located on both sides, and the crash part comprises two crash beams connected to the rear side of the two longitudinal beams one by one,

[0007] wherein one of the two ends of the crash beam and the longitudinal beam close to each other is provided with a slot with an opening facing the other, and the other is provided with a plug for cooperation with the slot.

[0008] Optionally, the end of the crash beam is configured as a C-shaped structure to serve as the slot, and the outer contour of the end of the longitudinal beam close to the crash beam is configured to match the inner contour of the C-shaped structure to form the plug.

[0009] Optionally, the anti-collision part further comprises two groups of first mounting holes formed on the plug and the socket respectively, and the two groups of first mounting holes are used for sequentially penetrating fasteners to connect the plug and the socket.

[0010] Optionally, the longitudinal beams are upwardly protruding arcuate beams, the cross beam part comprises a tail cross beam and a front cross beam, the tail cross beam and the front cross beam are respectively connected to the ends of the two arcuate beams at intervals to form the frame structure, and the reinforcing beams are connected to the top positions of the arcuate beams.

[0011] Optionally, the number of the front cross beams is two, and the front cross beams are arranged at intervals along the extension direction of the longitudinal beams.

[0012] Optionally, the reinforcing beams are connected to the arcuate beams by bolts.

[0013] Optionally, the frame structure is integrally formed by die casting.

[0014] Optionally, a shock-absorbing tower is further included, the shock-absorbing tower is formed at one end of the longitudinal beam close to the anti-collision beam and protrudes upwardly from the longitudinal beam.

[0015] In a second aspect of the present disclosure, a vehicle is provided, comprising the rear floor skeleton according to the above.

[0016] Through the above technical solution, the rear floor skeleton is composed of the integrally formed frame structure, the transversely connected reinforcing beams and the detachable anti-collision part, which improves the structural strength, shock-absorbing effect and safety of the rear floor skeleton, simplifies the installation and maintenance procedures of the rear floor skeleton and optimizes the space utilization.

[0017] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0019] Figure 1 is a structural schematic diagram of the rear floor skeleton provided by an exemplary embodiment of the present disclosure;

[0020] Figure 2 is a partial structural schematic diagram of the rear floor skeleton provided by an exemplary embodiment of the present disclosure;

[0021] Figure 3 is a structural schematic diagram of the reinforcing beam provided by an exemplary embodiment of the present disclosure.

[0022] Reference Signs List

[0023] 1 - longitudinal beam part; 11 - longitudinal beam; 12 - plug; 2 - cross beam part; 21 - front cross beam; 22 - rear cross beam; 3 - reinforcing beam; 31 - second mounting hole; 4 - anti-collision part; 41 - anti-collision beam; 42 - slot; 5 - frame structure; 6 - shock tower; 7 - fastener. DETAILED DESCRIPTION

[0024] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0025] In the present disclosure, the orientation words such as "upper", "lower", "top", "front", "rear", "left" and "right" are defined according to the usage habit of the rear floor skeleton, specifically, the upper and lower and the top can be the longitudinal direction of the vehicle, the front and rear can be the driving direction of the vehicle, and the left and right can be the transverse direction of the vehicle, and specific reference can be made to Figure 1 "inner" and "outer" refer to the inner and outer of the contour of the corresponding component. In addition, the terms "first", "second", etc. used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated.

[0026] With reference to Figures 1-3 , the present disclosure provides a rear floor skeleton, which can include a longitudinal beam part 1, a cross beam part 2, a reinforcing beam 3 and an anti-collision part 4. Among them, the longitudinal beam part 1 and the cross beam part 2 are configured as an integrally formed frame structure 5, and the frame structure 5 generally has a square contour, so that there is no connection point on the frame structure 5 connecting the longitudinal beam part 1 and the cross beam part 2, greatly improving the strength and rigidity of the frame structure 5, enabling it to withstand greater load and have stronger anti-deformation ability. The reinforcing beam 3 can be connected to the longitudinal beam part 1 in the transverse direction and located on the straight bisector of the longitudinal beam part 1. Such design makes the stress on the longitudinal beam part 1 more uniform and symmetrical, effectively reduces the risk of twisting and deforming of the longitudinal beam part 1 due to uneven stress, further improves the anti-torsion performance of the entire rear floor skeleton, and ensures that the vehicle can maintain a stable structure state under various dynamic driving conditions. At the same time, the reinforcing beam 3 can also provide key support for the frame structure 5, making the frame structure 5 more uniform and stable when bearing external force, effectively ensuring the structural safety of the rear floor skeleton. The anti-collision part 4 can be detachably connected to the rear side of the longitudinal beam part 1, so as to effectively simplify the installation process of the anti-collision part 4 and the frame structure 5, reduce the dependence on professionals, shorten the installation time, and also make it more convenient to troubleshoot and replace parts during maintenance. It can also flexibly adjust the layout inside the vehicle and improve the space utilization.

[0027] Through the technical scheme, the rear floor framework is composed of the integrally formed frame structure 5, the transversely connected reinforcing beams 3 and the detachable anti-collision part 4, which improves the structural strength, shock absorption effect and safety of the rear floor framework, simplifies the installation and maintenance procedures of the rear floor framework and optimizes the space utilization.

[0028] With reference to Figure 1 and Figure 2 , the longitudinal beam part 1 can include two longitudinal beams 11 located on both sides and arranged symmetrically along the left-right direction, and the anti-collision part 4 can include two anti-collision beams 41 connected to the rear sides of the two longitudinal beams 11 one by one. When the vehicle is impacted from the rear or other directions, the anti-collision beams 41 can effectively absorb the impact force, thereby avoiding the longitudinal beams 11 from being deformed by buckling and also avoiding the problem of stress concentration on the rear floor framework, so that the entire structure can better withstand and disperse the impact force and reduce the possibility of deformation and damage of the frame structure 5. One of the two ends of the anti-collision beam 41 and the longitudinal beam 11 close to each other can be provided with a slot 42 with an opening facing the other, and the other can be provided with a plug 12 for cooperation with the slot 42. The anti-collision beam 41 and the longitudinal beam 11 are connected through the cooperation of the plug 12 and the slot 42, so that the connection of the anti-collision beam 41 and the longitudinal beam 11 is more convenient. When the anti-collision beam 41 or the longitudinal beam 11 is damaged, maintenance personnel can more easily separate the damaged anti-collision beam 41 or longitudinal beam 11 for individual replacement without causing excessive impact on other undamaged parts. While ensuring reliable connection, the maintenance workload and time are reduced, the maintenance cost is lowered, and the universal design of the parts is also facilitated.

[0029] With reference to Figure 1 and Figure 2 , the end of the anti-collision beam 41 can be configured as a C-shaped structure. It should be noted that the end refers to the end position close to the longitudinal beam 11 relative to the anti-collision beam 41. The C-shaped structure can be used as the slot 42, and the plug 12 can extend into the slot 42 through the opening of the C-shaped structure, so as to simplify the installation procedure of the slot 42 and the plug 12 and reduce the cooperation difficulty thereof. The outer contour configuration of the end of the longitudinal beam 11 close to the anti-collision beam 41 can match the inner contour configuration of the C-shaped structure, so as to form the plug 12. That is, the end of the longitudinal beam 11 close to the anti-collision beam 41 can form the plug 12. Since the slot 42 and the plug 12 are connection structures formed on the beam bodies, the use of parts is reduced, and the reliability of the cooperation between the plug 12 and the slot 42 is further improved. In addition, since the outer contour configuration of the plug 12 matches the inner contour configuration of the slot 42, a more compact cooperation between the plug 12 and the slot 42 can be formed, which improves the connection precision of the anti-collision beam 41 and the longitudinal beam 11 and also effectively avoids the loosening and falling off of the anti-collision beam 41 and the longitudinal beam 11.

[0030] Referring to Figure 1 and Figure 2 , the anti-collision part 4 can further include two sets of first mounting holes formed on the plug 12 and the socket 42 in one-to-one correspondence, which can be used for the fastener 7 to pass through in sequence to connect the plug 12 and the socket 42. In the present disclosure, the first mounting hole can be formed as a threaded hole, and the number of first mounting holes on the plug 12 and the socket 42 can be multiple, respectively, and the fastener 7 can be a self-drilling screw, so that the fastener 7 has the characteristics of the self-drilling screw, thereby ensuring the firmness of the connection between the plug 12 and the socket 42, and improving the connection strength of the anti-collision beam 41 and the longitudinal beam 11, thereby improving the ability of the rear floor framework to withstand external forces such as vibration and impact.

[0031] Referring to Figure 1 , the longitudinal beam 11 can be an upwardly protruding arc-shaped beam, and the arc-shaped structure can more efficiently absorb and filter the vibration and impact from the road surface, thereby ensuring the structural stability of the longitudinal beam 11, and also being able to leave more installation space below the rear floor framework. The cross beam part 2 can include a tail cross beam 22 and a front cross beam 21, wherein the tail cross beam 22 and the front cross beam 21 can be connected to the ends of the two arc-shaped beams, respectively, that is, the two ends of the front cross beam 21 can be connected to the front ends of the two arc-shaped beams, respectively, and the two ends of the tail cross beam 22 can be connected to the rear ends of the two arc-shaped beams, respectively, to form a relatively regular quadrilateral frame structure 5, thereby facilitating the mold design and processing when manufacturing the frame structure 5. At the same time, through the mutual support of the beams, the torsional performance of the frame structure 5 is effectively improved, which can better cope with the complex stress in the vehicle driving. The reinforcing beam 3 can be connected to the top position of the arc-shaped beam and located on the symmetry axis of the quadrilateral frame structure 5. Such design makes the overall strength of the frame structure 5 stronger, can uniformly disperse external forces, reduce deformation, and the reinforcing beam 3 further strengthens the stability of the frame structure on the symmetry axis. In addition, through the cooperation of the reinforcing beam 3 and the arc-shaped beam, the bending resistance of the frame structure 5 is effectively improved, and when the frame structure 5 is impacted by external forces, through the mutual restraint of the beams, the local deformation of the rear floor framework can be effectively prevented from being too large.

[0032] Referring to Figure 1 , the number of front cross beams 21 can be two, and the two front cross beams 21 can be arranged in the extension direction of the longitudinal beam 11, that is, the two front cross beams 21 are arranged in the front-rear direction. By arranging multiple front cross beams 21, the load can be effectively dispersed, thereby effectively improving the anti-deformation and anti-twisting ability of the rear floor framework, and making the overall structure of the vehicle more stable. It should be noted that in the actual installation and production process, the number of front cross beams 21 can be greater than two, which is not limited in the present disclosure. The design of multiple front cross beams 21 can also provide more mounting points and supports for other components of the vehicle, so that the component layout at the front end of the vehicle is more reasonable and compact.

[0033] With reference to Figures 1-3 The reinforcing beam 3 and the arcuate beam can be connected by bolts. The reinforcing beam 3 can be formed with a second mounting hole 31. The arcuate beam can be formed with a third mounting hole corresponding to the position of the second mounting hole 31. The second mounting hole 31 and the third mounting hole can be respectively configured as threaded holes. The bolts can be sequentially penetrated through the second mounting hole 31 and the third mounting hole to connect the arcuate beam and the reinforcing beam 3. In the present disclosure, the bolts can be flow drill screws, thereby ensuring the firmness of the connection between the arcuate beam and the reinforcing beam 3, so as to effectively withstand external forces such as vibration and impact.

[0034] According to some embodiments provided by the present disclosure, the frame structure 5 can be integrally formed by die casting. By this forming mode, the overall structure of the frame structure 5 is more continuous and complete, and the stress can be more uniformly transmitted and dispersed when the force is applied. The overall strength and rigidity of the frame structure 5 are improved, the reliability and safety of the product are improved, and the lightweight design principle is met.

[0035] With reference to Figure 1 And Figure 2 The rear floor framework can further include a shock tower 6 which can be integrally formed at one end of the longitudinal beam 11 close to the crash beam 41, and the corresponding positions of the two longitudinal beams 11 can be respectively formed with the shock tower 6. The shock tower 6 can better share the impact force when the vehicle is in a collision, and the shock tower 6 protrudes upward from the longitudinal beam 11. The overall vehicle body structure can be more stable when the force is applied, the anti-deformation capability of the vehicle is improved, the safety of the vehicle occupants is protected, and the utilization rate of the interior space of the vehicle is improved. It can be understood that the corresponding positions of the two longitudinal beams 11 are respectively formed with the shock tower 6.

[0036] According to a second aspect of the present disclosure, a vehicle is provided, which includes the rear floor framework provided by the present disclosure and has all the beneficial effects of the rear floor framework, which will not be described herein.

[0037] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details of the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0038] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not describe various possible combinations again.

[0039] Furthermore, the various embodiments of the present disclosure can be arbitrarily combined with each other unless they contradict each other, and it should be understood that the same should be construed as being included in the disclosure of the present disclosure.

Claims

1. A rear floor frame, characterized in that, It includes a longitudinal beam section, a transverse beam section, a reinforcing beam, and a crash protection section. The longitudinal beam section and the transverse beam section are constructed as an integral frame structure. The reinforcing beam is connected to the longitudinal beam section in the transverse direction and is located on the vertical bisector of the longitudinal beam section. The crash protection section is detachably connected to the rear side of the longitudinal beam section.

2. The rear floor frame according to claim 1, characterized in that, The longitudinal beam section includes two longitudinal beams located on both sides, and the anti-collision section includes two anti-collision beams that are connected one-to-one to the rear sides of the two longitudinal beams. The anti-collision beam and the longitudinal beam are provided with a slot at their two ends that are close to each other, and the other end is provided with a plug for engaging with the slot.

3. The rear floor frame according to claim 2, characterized in that, The end of the anti-collision beam is configured as a C-shaped structure to serve as the slot, and the outer contour of the end of the longitudinal beam near the anti-collision beam matches the inner contour of the C-shaped structure to form the plug.

4. The rear floor frame according to claim 2 or 3, characterized in that, The anti-collision part also includes two sets of first mounting holes formed on the plug and the slot respectively, the two sets of first mounting holes being used for fasteners to pass through in sequence to connect the plug and the slot.

5. The rear floor frame according to claim 3, characterized in that, The longitudinal beam is an upward-curving arched beam, and the crossbeam includes a tail crossbeam and a front crossbeam. The tail crossbeam and the front crossbeam are respectively connected at intervals to the ends of the two arched beams to form the frame structure. The reinforcing beam is connected to the top of the arched beam.

6. The rear floor frame according to claim 5, characterized in that, The number of front crossbeams is two, which are arranged at intervals along the extension direction of the longitudinal beam.

7. The rear floor frame according to claim 5, characterized in that, The reinforcing beam is connected to the bow-shaped beam by bolts.

8. The rear floor frame according to claim 1, characterized in that, The frame structure is integrally formed by die casting.

9. The rear floor frame according to claim 5, characterized in that, It also includes a shock absorber tower, which is formed at one end of the longitudinal beam near the anti-collision beam and protrudes upward from the longitudinal beam.

10. A vehicle, characterized in that, Includes the rear floor frame according to any one of claims 1-9.

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