Automobile rear storage plate area reinforcing structure and automobile

By connecting the left and right structural members in the rear cargo panel area of ​​the vehicle to form an annular force transmission structure, the torsional deformation problem of the rear cargo panel area during a vehicle collision is solved, the torsional stiffness and rear-end collision safety of the entire vehicle are improved, the impact risk of luggage compartment items on rear passengers is reduced, and the driving control performance and NVH performance are improved.

CN223420608UActive Publication Date: 2025-10-10BAIC MOTOR CORP LTD
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Patent Information

Application Number
CN202422713257.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-10-10
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

The existing rear cargo area of ​​automobiles is difficult to effectively resist torsional deformation during a vehicle collision, and the risk of luggage compartment items impacting rear passengers is high.

Method used

By connecting the left and right structural members to the rear cargo panel, rear shock absorber mounting plate, rear wheel arch inner panel and rear floor cross member, an annular force transmission structure is formed, which improves the torsional rigidity of the entire vehicle and forms a higher-strength partition between the luggage compartment and the passenger compartment.

Benefits of technology

It improves the torsional rigidity and rear-end collision safety of the vehicle, reduces the risk of impact of luggage compartment items on rear passengers, improves driving performance and NVH performance, and extends the service life of the vehicle body.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile rear storage plate area reinforcing structure and an automobile, and relates to the technical field of automobile manufacturing, the automobile rear storage plate area reinforcing structure comprises a left structural part and a right structural part; the upper ends of the left structural part and the right structural part are used for being connected with the two ends of the X-direction plane of the rear storage plate. The upper portions of the ends, away from each other, of the left structural part and the right structural part are used for being connected with X-direction planes of the ends, close to each other, of rear shock absorber mounting plates on the two sides. The lower portions of the ends, away from each other, of the left structural part and the right structural part are used for being connected with X-direction planes of the ends, close to each other, of rear wheel cover inner plates on the two sides. The lower ends of the left structural member and the right structural member are used for being connected with the two ends of the Z-direction plane of the rear floor beam. According to the reinforcing structure, the rear storage plate, the rear shock absorber mounting plate, the rear wheel cover inner plate and the rear floor cross beam are connected to form an annular force transmission structure capable of effectively resisting torsional deformation of a vehicle body, so that the torsional rigidity of the whole vehicle is improved, a trunk can be further separated from a passenger compartment, and the rear collision safety of the vehicle is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and more specifically relates to a rear cargo panel area reinforcement structure of an automobile and an automobile. Background Art

[0002] The rear cargo area of ​​a car not only needs to be able to resist torsional deformation of the vehicle, but also needs to reduce the impact of luggage compartment items on rear passengers when the vehicle is hit from behind. Therefore, the rear cargo area requires focused analysis and design to meet the needs of future automobile development. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies in the existing technology and provide a reinforcement structure for the rear cargo panel area of ​​a car and a car. The reinforcement structure connects the rear cargo panel, the rear shock absorber mounting plate, the rear wheel cover inner plate, and the rear floor crossbeam to form an annular force transmission structure that effectively resists torsional deformation of the car body, thereby improving the torsional stiffness of the entire vehicle, and can further separate the luggage compartment from the passenger compartment, thereby improving the rear collision safety of the vehicle.

[0004] In order to achieve the above objectives, the present invention provides a vehicle rear cargo area reinforcement structure, comprising:

[0005] The left structural member and the right structural member are symmetrically arranged on both sides of the plane where the X axis and the Z axis intersect;

[0006] The upper ends of the left structural member and the right structural member are used to connect with the two ends of the X-direction plane of the rear storage plate;

[0007] The upper portions of the ends of the left structural member and the right structural member that are away from each other are used to connect to the X-direction planes of the ends of the rear shock absorber mounting plates on both sides that are close to each other;

[0008] The lower portions of the ends of the left and right structural members that are away from each other are used to connect to the X-direction planes of the ends of the rear wheel housing inner panels on both sides that are close to each other;

[0009] The lower ends of the left structural member and the right structural member are used to be connected to the two ends of the Z-direction plane of the rear floor cross member.

[0010] Optionally, the left structural member and the right structural member are structural members that are symmetrical to each other.

[0011] Optionally, at least three first mounting holes are provided at the upper end of the structural member, a second mounting hole and a third mounting hole are provided on the side of the structural member close to the outer side of the vehicle body, and at least three fourth mounting holes are provided at the lower end of the structural member, and the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole are respectively bolted to the rear cargo plate, the rear shock absorber mounting plate, the rear wheel cover inner plate and the rear floor crossbeam.

[0012] Optionally, reinforcing ribs are respectively provided around the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole.

[0013] Optionally, the reinforcing ribs include W-shaped ribs, straight-line ribs, elliptical ribs and L-shaped ribs, and the straight-line ribs run through the upper and lower ends of the structural member.

[0014] Optionally, weight-reducing holes are provided on the structural member.

[0015] Optionally, a avoidance hole is provided on the structural member, the avoidance hole is provided between the second mounting hole and the third mounting hole, and a flange is provided on the outer periphery of the avoidance hole.

[0016] Optionally, a connecting plate is provided between the structural member and the rear wheel housing inner panel, one end of the connecting plate is bolted to the third mounting hole, and the other end of the connecting plate is welded to the rear wheel housing inner panel.

[0017] Optionally, a bolt connection hole is provided at one end of the connecting plate, a welding flange is provided at the other end of the connecting plate, and structural adhesive is provided on the welding flange.

[0018] The utility model also provides an automobile, comprising the above-mentioned automobile rear storage panel area reinforcement structure.

[0019] The present invention provides a rear cargo panel area reinforcement structure for a car and a car, the beneficial effects of which are as follows: the reinforcement structure connects the upper rear cargo panel, the lower rear floor crossbeam and the rear shock absorber mounting plates and rear wheel cover inner plates on both sides into a whole through structural parts, thereby improving the torsional stiffness of the entire vehicle and forming a higher-strength structure between the trunk and the crew compartment, so that the vehicle exhibits better performance in usage scenarios such as passing over pits, thresholds, turns, and bumps. By improving the torsional stiffness of the vehicle body, it has a stronger ability to resist deformation of the vehicle body, which means that the entire vehicle can have more outstanding driving performance, better chassis response efficiency, and better NVH performance. It can also reduce the occurrence of fatigue damage of the vehicle body and have a longer service life. Simulation analysis results show that the reinforcement structure can improve the torsional stiffness of the vehicle body by more than about 25%, and can also effectively reduce the impact of the luggage compartment items on the rear passengers during a collision, thereby improving the rear collision safety of the vehicle.

[0020] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0022] Figure 1 A structural schematic diagram of a left structural member according to an embodiment of the present utility model is shown.

[0023] Figure 2 A schematic structural diagram of a right structural member according to an embodiment of the present utility model is shown.

[0024] Figure 3 A schematic diagram of the installation of a vehicle rear cargo panel area reinforcement structure according to an embodiment of the present utility model is shown.

[0025] Figure 4 A structural schematic diagram of a connecting plate according to an embodiment of the present utility model is shown.

[0026] Description of reference numerals:

[0027] 10. Right structural member; 11. First left mounting hole; 12. First center mounting hole; 13. First right mounting hole; 14. Second mounting hole; 15. Third mounting hole; 16. Fourth right mounting hole; 17. Fourth center mounting hole; 18. Fourth left mounting hole; 19. W-shaped rib; 20. I-shaped rib; 21. Oval rib; 22. L-shaped rib; 23. Long flange; 24. Weight reduction hole; 25. Avoidance hole; 26. Flange; 30. Rear storage panel; 31. Rear shock absorber mounting plate; 32. Rear wheelhouse inner panel; 33. Rear floor cross member; 40. Connecting plate; 41. Bolt connection hole; 42. Welding flange; 50. Left structural member. DETAILED DESCRIPTION

[0028] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] The utility model provides a rear cargo area reinforcement structure for an automobile, comprising:

[0030] The left structural member and the right structural member are symmetrically arranged on both sides of the plane where the X axis and the Z axis intersect;

[0031] The upper ends of the left and right structural members are used to connect with the two ends of the X-direction plane of the rear cargo plate;

[0032] The upper portions of the ends of the left and right structural members that are away from each other are used to connect with the X-direction planes of the ends of the rear shock absorber mounting plates on both sides that are close to each other;

[0033] The lower portions of the ends of the left and right structural members that are away from each other are used to connect to the X-direction planes of the ends of the rear wheel housing inner panels on both sides that are close to each other;

[0034] The lower ends of the left structural member and the right structural member are used to be connected to the two ends of the Z-direction plane of the rear floor cross member.

[0035] Specifically, the reinforcement structure is connected to the surrounding rear panel, shock absorber mounting plate, rear wheel arch inner panel and rear floor cross member to form the rear panel area into a high-strength whole, which can not only resist torsional rigidity, but also resist rear-end impact strength, thereby improving ride comfort and safety.

[0036] Optionally, the left structural member and the right structural member are structural members that are symmetrical to each other.

[0037] Specifically, the left and right structural parts are arranged symmetrically, and the mounting holes, reinforcing ribs and weight-reducing holes of the structural parts are all provided. This ensures the stability of the connection while effectively controlling the weight of the vehicle body.

[0038] Optionally, at least three first mounting holes are provided at the upper end of the structural member, second mounting holes and third mounting holes are provided on the side of the structural member close to the outer side of the vehicle body, and at least three fourth mounting holes are provided at the lower end of the structural member. The first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole are respectively bolted to the rear cargo panel, the rear shock absorber mounting plate, the rear wheel arch inner panel and the rear floor crossbeam.

[0039] Optionally, reinforcing ribs are respectively provided around the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole.

[0040] Specifically, in order to ensure the local strength of the mounting holes, reinforcing ribs are arranged around each mounting hole.

[0041] Optionally, the reinforcing ribs include W-shaped ribs, straight-line ribs, elliptical ribs and L-shaped ribs, and the straight-line ribs run through the upper and lower ends of the structural member.

[0042] Specifically, in addition to setting reinforcing ribs on the structural parts, long flanges are also set on the overlapping side that is not connected to other stamping parts. The long flanges run through the upper and lower ends of the structural parts, thereby solving the problem of insufficient normal stiffness and strength of large-size sheet metal.

[0043] Optionally, the structural member is provided with a weight-reducing hole.

[0044] Specifically, a plurality of weight-reducing holes are arranged on the structural member, and a circular boss structure is arranged around the weight-reducing holes to ensure that the arrangement of the weight-reducing holes does not cause a decrease in local rigidity and strength.

[0045] Optionally, the structural member is provided with an avoiding hole, the avoiding hole is arranged between the second mounting hole and the third mounting hole, and a flange is arranged around the avoiding hole.

[0046] Optionally, a connecting plate is arranged between the structural member and the rear wheel cover inner plate, one end of the connecting plate is bolt-connected with the third mounting hole, and the other end of the connecting plate is welded with the rear wheel cover inner plate.

[0047] Optionally, one end of the connecting plate is provided with a bolt connection hole, the other end of the connecting plate is provided with a welding flange, and the welding flange is provided with structural glue.

[0048] Specifically, due to the requirement of sealing performance, the rear wheel cover inner plate cannot be directly arranged with a bolt hole, and therefore a connecting plate is additionally arranged between the rear wheel cover inner plate and the left and right structural members to realize the connection and fixation of the two. The welding flange and the bolt connection hole are arranged on the connecting plate, the welding flange is connected with the rear wheel cover inner plate, and the bolt connection hole is connected with the structural member. In order to ensure that the welding point at the welding flange 41 does not have a fatigue endurance risk, structural glue needs to be arranged in the welding point area.

[0049] The utility model also provides a kind of automobile, including the automobile rear material plate area reinforcing structure of above.

[0050] Specifically, the rear material plate, the rear wheel cover, the rear shock absorber mounting plate, the rear floor and the rear longitudinal beam can be connected on the automobile by the reinforcing structure to form a loop force transmission structure effectively resisting torsional deformation of vehicle body, so as to improve the torsional rigidity of the whole vehicle and the strength performance of the rear shock absorber mounting point. At the same time, the reinforcing structure further separates the luggage compartment and the passenger compartment, which can reduce the impact of luggage compartment articles on rear passengers during rear collision and improve the rear collision safety performance of the vehicle.

[0051] Embodiment

[0052] As Figures 1 to 4 shown, the utility model provides a kind of automobile rear material plate area reinforcing structure, comprising:

[0053] The left structural member 50 and the right structural member 10 are symmetrically arranged on both sides of the plane where X axis and Z axis intersect;

[0054] The upper end of the left structural member 50 and the right structural member 10 is used to be connected with the both ends of the X-direction plane of the rear material plate 30;

[0055] The upper part of the left and right structural members 50 and 10 at the side away from each other is connected to the X plane of the side of the rear shock absorber mounting plate 31 close to each other;

[0056] The lower part of the left and right structural members 50 and 10 at the side away from each other is connected to the X plane of the side of the rear wheelhouse inner panel 32 close to each other;

[0057] The lower end of the left and right structural members 50 and 10 is connected to the Z plane of the two ends of the rear floor cross beam 33.

[0058] In this embodiment, the left and right structural members 50 and 10 are symmetrical to each other.

[0059] In this embodiment, the upper end of the structural member is provided with the first left mounting hole 11, the first middle mounting hole 12 and the first right mounting hole 13, which are connected to the rear luggage board 30 through X direction bolts, the side of the structural member close to the outside of the vehicle body is provided with the second mounting hole 14 and the third mounting hole 15, which are also connected to the rear shock absorber mounting plate 31 and the rear wheelhouse inner panel 32 through X direction bolts respectively, the lower end of the structural member is provided with the fourth left mounting hole 18, the fourth middle mounting hole 17 and the fourth right mounting hole 16, which are connected to the rear floor cross beam 33 through Z direction bolts.

[0060] In this embodiment, the periphery of the first mounting hole, the second mounting hole 14, the third mounting hole 15 and the fourth mounting hole is provided with a reinforcing rib.

[0061] In this embodiment, the reinforcing rib includes W type rib 19, straight type rib 20, oval type rib 21 and L type rib 22, the straight type rib 20 penetrates the upper and lower ends of the structural member.

[0062] In this embodiment, the structural member is provided with a long flange 23 at the side close to each other, and the structural member is provided with a weight reduction hole 24.

[0063] In this embodiment, the structural member is provided with a relief hole 25, which is arranged between the second mounting hole 14 and the third mounting hole 15, and the outer periphery of the relief hole 25 is provided with a flange 26.

[0064] In this embodiment, a connecting plate 40 is arranged between the structural member and the rear wheelhouse inner panel 32, one end of the connecting plate 40 is bolted to the third mounting hole 15, and the other end of the connecting plate 40 is welded to the rear wheelhouse inner panel 32.

[0065] In this embodiment, one end of the connecting plate 40 is provided with a bolted hole 41, and the other end of the connecting plate 40 is provided with a welded flange 42, and the welded flange 42 is provided with structural adhesive.

[0066] The utility model also provides a kind of car, including above automobile rear material plate area reinforcing structure.

[0067] In addition, X direction herein is along the front-rear direction of the vehicle, Y direction is along the left-right direction of the vehicle, and Z direction is along the up-down direction of the vehicle.

[0068] The above has described various embodiments of the utility model, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A car rear panel area reinforcement structure, characterized in that: include: The left structural member and the right structural member are symmetrically arranged on both sides of the plane where the X axis and the Z axis intersect; The upper ends of the left structural member and the right structural member are used to connect with the two ends of the X-direction plane of the rear storage plate; The upper portions of the ends of the left structural member and the right structural member that are away from each other are used to connect to the X-direction planes of the ends of the rear shock absorber mounting plates on both sides that are close to each other; The lower portions of the ends of the left and right structural members that are away from each other are used to connect to the X-direction planes of the ends of the rear wheel housing inner panels on both sides that are close to each other; The lower ends of the left structural member and the right structural member are used to be connected to the two ends of the Z-direction plane of the rear floor cross member.

2. The automobile rear panel area reinforcement structure according to claim 1, characterized in that: The left structural member and the right structural member are structural members that are symmetrical to each other.

3. The automobile rear panel area reinforcement structure according to claim 2, characterized in that: At least three first mounting holes are provided at the upper end of the structural member, a second mounting hole and a third mounting hole are provided on the side of the structural member close to the outer side of the vehicle body, and at least three fourth mounting holes are provided at the lower end of the structural member. The first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole are respectively bolted to the rear storage plate, the rear shock absorber mounting plate, the rear wheelhouse inner plate and the rear floor crossbeam.

4. The automobile rear panel area reinforcement structure according to claim 3, characterized in that: Reinforcement ribs are respectively provided around the peripheries of the first mounting hole, the second mounting hole, the third mounting hole, and the fourth mounting hole.

5. The automobile rear panel area reinforcement structure according to claim 4, characterized in that: The reinforcing ribs include W-shaped ribs, straight-line ribs, elliptical ribs and L-shaped ribs, and the straight-line ribs run through the upper and lower ends of the structural member.

6. The automobile rear panel area reinforcement structure according to claim 2, characterized in that: The structural member is provided with a weight-reducing hole.

7. The automobile rear panel area reinforcement structure according to claim 3, characterized in that: The structural member is provided with an avoidance hole, the avoidance hole is arranged between the second mounting hole and the third mounting hole, and the outer periphery of the avoidance hole is provided with a flange.

8. The automobile rear panel area reinforcement structure according to claim 3, characterized in that: A connecting plate is provided between the structural member and the rear wheel housing inner plate, one end of the connecting plate is bolted to the third mounting hole, and the other end of the connecting plate is welded to the rear wheel housing inner plate.

9. The automobile rear panel area reinforcement structure according to claim 8, characterized in that: One end of the connecting plate is provided with a bolt connection hole, and the other end of the connecting plate is provided with a welding flange, and structural adhesive is provided on the welding flange.

10. An automobile, characterized in that: The invention comprises the automobile rear panel area reinforcement structure according to any one of claims 1 to 9.