Platform automobile rear floor panel structure
By dividing the rear floor panel of a car into front and rear parts and using X-direction strip ribs and Y-direction strip ribs to strengthen the structure, the problem of the traditional rear floor panel being unable to be platformed is solved, achieving a design that is low-cost, high-strength, and highly adaptable.
Patent Information
- Application Number
- CN202520173812.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-26
AI Technical Summary
Traditional automotive rear floor panel structures cannot be platform-based, resulting in high development costs, complex manufacturing processes, difficulties in part molding, high part scrap rates, and impact on overall vehicle rigidity and modal performance.
The rear floor panel is divided into front and rear sections. The front section is designed as a platform-based universal section, while the rear section is designed differently according to the vehicle model. The two sections are connected by welding and reinforced with X-direction strip ribs and Y-direction strip ribs to increase the density of the reinforcing ribs.
The platform design reduces development costs, improves the strength and rigidity of the floor panel, simplifies the mold structure, reduces the difficulty of part molding and the scrap rate, and meets the adaptability requirements of different vehicle models.
Smart Images
Figure CN223778438U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automobile rear floor technology field especially is involved in a kind of platformization automobile rear floor panel structure. BACKGROUND
[0002] In the design of vehicle body structure, the design of rear floor is very important. If the design is unreasonable, it will lead to insufficient strength and rigidity of the rear floor, affecting the performance of the overall vehicle rigidity and modal. The floor is an important load-bearing component in the vehicle, and the rear floor panel is one of the key parts, which plays an important supporting role in carrying seats, members and goods on the vehicle, and plays a key role in sealing and NVH of the passenger compartment or cargo compartment.
[0003] The traditional rear floor panel structure is a whole steel stamping part stamped, and different models need to design different rear floor panels to adapt to the corresponding wheelbase, rear suspension and other components. This structure needs to develop different molds according to different structures during development. In view of the current popularization of product platformization of automobile underbody, the design of the rear floor panel into a whole structure is not cost-effective.
[0004] In addition, the body floor panel has the problems of difficult part forming, extremely complex production process and high part scrap rate. In the prior art, the rear floor is also segmented to overcome the above problems, but the structure is still complex. For example, patent CN214215951U discloses an automobile rear floor structure, which comprises a rear floor front segment assembly and a rear floor rear segment assembly. The rear floor front segment assembly comprises a rear floor front segment body, a rear floor front segment left connecting plate and a rear floor front segment right connecting plate. The rear floor front segment left connecting plate and the rear floor front segment right connecting plate are connected to the left and right sides of the rear floor front segment body respectively. The rear floor rear segment assembly comprises a rear floor rear segment body, a rear floor rear segment left connecting plate and a rear floor rear segment right connecting plate. The rear floor rear segment left connecting plate and the rear floor rear segment right connecting plate are connected to the left and right sides of the rear floor rear segment body respectively. The rear end of the rear floor front segment assembly is connected to the front end of the rear floor rear segment assembly. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of the prior art, the utility model provides a platformization automobile rear floor panel structure, which divides the rear floor panel into front and rear parts, and the front part is designed in a platformization manner, with simple structure and relatively low cost.
[0006] To solve the above technical problems, the utility model adopts the following technical scheme:
[0007] The platform automobile rear floor panel structure comprises a rear floor body front part and a rear floor body rear part, the rear floor body front part is used as a platform general part, the rear end of the rear floor body front part and the front end of the rear floor body rear part are connected through butt joint welding, and the rear floor body front part and the rear floor body rear part are provided with a reinforcing rib structure.
[0008] Further:
[0009] The rear end of the rear floor body front part and the front end of the rear floor body rear part are connected through lap joint welding.
[0010] The reinforcing rib structure comprises a group of X-direction strip reinforcing ribs arranged side by side.
[0011] The rear floor body front part and the rear floor body rear part are provided with a welding positioning hole, the rear floor body front part is provided with one welding positioning hole, and the rear floor body rear part is provided with a group of welding positioning holes.
[0012] The rear floor body front part and the rear floor body rear part are provided with seat mounting holes, and the seat mounting holes on the rear floor body front part and the seat mounting holes on the rear floor body rear part are arranged in front and back alignment.
[0013] The X-direction strip reinforcing rib is an X-direction strip through rib.
[0014] The rear floor body front part and the rear floor body rear part are provided with Y-direction strip ribs on the edge parts.
[0015] The X-direction strip reinforcing rib and the Y-direction strip rib are connected.
[0016] Compared with the prior art, the utility model has the following advantages:
[0017] The platform automobile rear floor panel structure is rationally designed, the rear floor panel is divided into front and rear parts, the rear floor front part is used as a platform general part, the rear floor rear part is provided with different structures according to different vehicle models, and the front and rear floor panels are connected through spot welding, so that the demand of different lengths of wheelbase and different lengths of rear suspension of the same platform is met; due to the special demand of the commercial vehicle, the reinforcing rib of the floor panel mainly adopts an X-direction strip through rib, and a plurality of Y-direction strip ribs are arranged, the reinforcing rib arrangement is relatively dense, the density of the reinforcing rib is maximized on the basis of reasonable arrangement, and the strength of the floor panel is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] The contents expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:
[0019] Figure 1 It is a schematic view of the rear floor panel assembly of the utility model.
[0020] Figure 2 for along Figure 1 A-A sectional view schematic diagram in the middle.
[0021] Figure 3 for along Figure 1 B-B sectional view schematic diagram in the middle.
[0022] Figure 4 The reinforcing rib arrangement schematic diagram on the panel of the utility model.
[0023] Figure 5 The welding positioning hole arrangement schematic diagram on the panel of the utility model.
[0024] Figure 6 The seat mounting hole arrangement schematic diagram on the panel of the utility model.
[0025] In the figure:
[0026] 1. The rear floor body front part, 101. The panel front part reinforcing rib, 2. The rear floor body rear part, 102. The panel rear part reinforcing rib. DETAILED DESCRIPTION
[0027] The specific embodiments of the utility model are further explained in detail by the description of the embodiments with reference to the drawings.
[0028] As Figures 1 to 6 shown, the rear floor panel segmentation structure applied to product platformization includes two segment structures of rear floor body front part 1 and rear floor body rear part 2, the rear floor body front part 1 is a platformization general part, the rear floor rear part is different structure according to different vehicle models, the rear end of the rear floor body front part and the front end of the rear floor body rear part are connected by butt joint welding, the rear floor body front part and the rear floor body rear part are both provided with reinforcing rib structures, and the reinforcing rib structures are panel front part reinforcing rib 101 and panel rear part reinforcing rib 102 respectively.
[0029] As Figure 2 shown, the rear end of the rear floor body front part 1 and the front end of the rear floor body rear part 2 are connected by lap joint welding; the rear end of the rear floor body front part is located below, the front end of the rear floor body rear part is located above, and the lap joint welding is connected to improve the connection strength.
[0030] As Figure 3 and Figure 4 shown, the reinforcing rib structure includes a group of X-direction strip reinforcing ribs arranged side by side; preferably, the X-direction strip reinforcing rib is an X-direction strip through rib. The edge part of the rear floor body front part and the rear floor body rear part is both provided with a Y-direction strip rib; the X-direction strip reinforcing rib and the Y-direction strip rib are connected.
[0031] Due to the special requirements of commercial vehicles carrying goods, the floor panel reinforcing rib mainly adopts X-direction strip through rib, plus multiple Y-direction strip ribs, the reinforcing rib arrangement is relatively dense, on the basis of reasonable arrangement, the density of the reinforcing rib is maximized, and the strength of the floor panel is greatly improved.
[0032] The rear floor with multiple reinforcing ribs can meet the structural strength of the rear floor, the low-speed rear collision and the optimal state of mass, and also improves the safety performance of the rear collision. The rear floor is divided into a rear floor front section and a rear floor rear section, the complexity of the stamping die is reduced, the shape of the plate is optimized, the risk of wrinkling and cracking in the part forming process is reduced, and the process forming difficulty of the floor panel and the large part scrap rate problem are solved.
[0033] As shown in Figure 5 A welding positioning hole A is arranged on the rear floor body front part, and a group of welding positioning holes are arranged on the rear floor body rear part; preferably, three welding positioning holes B, C and D are arranged on the rear floor body rear part; the rear floor front part is a platformized universal part, the rear floor rear part has different structures according to different vehicle models, and the welding butt joint is accurate through the welding positioning holes.
[0034] As shown in Figure 6 A seat mounting hole is arranged on the rear floor body front part and the rear floor body rear part, and the seat mounting hole on the rear floor body front part and the seat mounting hole on the rear floor body rear part are arranged in front and back alignment.
[0035] The utility model discloses an innovation in effectively solving the problem that the rear floor panel cannot be platformized and the development cost is higher, meets the assembly and use requirements of the vehicle in structure and strength, and can adapt to the needs of technical development.
[0036] The utility model discloses an innovation in effectively solving the problem that the rear floor panel cannot be platformized and the development cost is higher, meets the assembly and use requirements of the vehicle in structure and strength, and can adapt to the needs of technical development.
[0037] The above is only for the preferred embodiment of the utility model, and the above technical features can be combined to form multiple embodiment schemes of the utility model.
[0038] The utility model has been described exemplarily above in combination with the drawings, obviously, the utility model specific implementation is not limited by the above-mentioned mode, as long as various non-essential improvements of adopting the utility model's conception and technical scheme, or the conception and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.
Claims
1. A platformed automotive rear floor panel structure characterized by: The rear floor body front part and the rear floor body rear part are connected by butt joint welding at the rear end of the rear floor body front part and the front end of the rear floor body rear part.
2. The platformed automotive rear floor panel structure of claim 1, wherein: The rear end of the rear floor body front part and the front end of the rear floor body rear part are connected by butt joint welding.
3. The platformed automotive rear floor panel structure of claim 1, wherein: The reinforcing rib structure comprises a group of X-direction strip reinforcing ribs arranged side by side.
4. The platformed automotive rear floor panel structure of claim 1, wherein: The rear floor body front part and the rear floor body rear part are provided with welding positioning holes, the rear floor body front part is provided with one welding positioning hole, and the rear floor body rear part is provided with a group of welding positioning holes.
5. The platformed automotive rear floor panel structure of claim 1, wherein: The rear floor body front part and the rear floor body rear part are provided with seat mounting holes, the seat mounting holes on the rear floor body front part and the seat mounting holes on the rear floor body rear part are arranged in front and back alignment.
6. The platformed automotive rear floor panel structure of claim 3, wherein: The X-direction strip reinforcing rib is an X-direction strip through rib.
7. The platformed automotive rear floor panel structure of claim 3, wherein: The rear floor body front part and the rear floor body rear part are provided with Y-direction strip ribs on the edge portions.
8. The platformed automotive rear floor panel structure of claim 7, wherein: The X-direction strip reinforcing rib and the Y-direction strip rib are connected.