Middle floor structure of automobile
By setting up multiple sets of fuel tank maintenance ports and side fuel tank maintenance ports on the floor structure of the car, and setting up maintenance port covers according to the needs of the vehicle model, the problem that the existing floor structure cannot be adapted to multiple models is solved, and cost reduction and production are achieved The cycle is shortened to meet the needs of the development of new energy vehicles, while improving the safety and corrosion resistance of the automobile.
Patent Information
- Application Number
- CN202420981767.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The floor structures in existing cars cannot be used in multiple models, resulting in high manufacturing and design costs, long production cycles, and cannot meet the development needs of new energy hybrid vehicles.
A mid-floor structure of automobiles is designed, including the mid-floor body, a medium fuel tank maintenance port and a side fuel tank maintenance port are installed in the middle, and a maintenance port cover is set according to needs, which is fixedly connected by adhesive to adapt to four-wheel drive vehicles and two-wheel drive models. Add reinforced concave ribs and liquid leakage holes to improve stiffness and corrosion resistance.
It realizes multi-model adaptation of mid-floor structure, reduces design and production costs, and simultaneously meets future model iteration needs, quickly responds to market changes, and improves the safety and corrosion resistance of the car.
Smart Images
Figure CN222247409U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile bodies, in particular to a floor structure in an automobile. Background Art
[0002] The center floor of a car body is a key structural part of the car body. It must meet the stiffness and fatigue strength requirements of the whole vehicle function, meet the anti-corrosion sealing performance level requirements, meet the space layout requirements for fuel tank installation, and meet the requirements of collision safety regulations. Automobile models generally include four-wheel drive vehicles and two-wheel drive vehicles. Four-wheel drive vehicles and two-wheel drive vehicles are provided with fuel tank inspection ports of different numbers and positions on the center floor. The fuel tank inspection ports are used to inspect the oil pump in the fuel tank. The existing center floor structure cannot be used for multiple models. Different center floor structures need to be designed and produced according to different models, which makes the manufacturing cost and design cost high and the production cycle longer. With the rapid development trend of new energy hybrid vehicles, the existing center floor structure can no longer meet the development needs. Therefore, it is necessary to invent a new car center floor structure. Utility Model Content
[0003] The utility model aims to provide a car middle floor structure to solve the problems that the existing middle floor structure cannot be universally applied to various car models, has high manufacturing and design costs, and has a long production cycle.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A car center floor structure includes a center floor body, a center fuel tank inspection port is arranged in the middle of the center floor body, side fuel tank inspection ports are arranged on the center floor body at the left and right sides of the center fuel tank inspection port, and a plurality of groups of inspection port covers adapted to the center fuel tank inspection port and the side fuel tank inspection ports are arranged on the center floor body.
[0006] Furthermore, when the middle floor structure is used for a four-wheel drive vehicle, no inspection port cover is provided on the middle fuel tank inspection port, and inspection port covers are fixedly provided on the side fuel tank inspection ports.
[0007] Furthermore, when the middle floor structure is used for a two-wheel drive vehicle, an inspection port cover is fixedly provided on the middle fuel tank inspection port, and no inspection port cover is provided on the side fuel tank inspection port.
[0008] Furthermore, the inspection port cover is fixedly connected to the inspection port of the middle tank and the inspection port of the side tank near the edge by gluing.
[0009] Furthermore, a circle of first reinforcing ribs is provided near the edge of the inspection port cover plate, and second reinforcing ribs are provided near the edge of the middle tank inspection port and the side tank inspection port. The first reinforcing ribs and the second reinforcing ribs are overlapped and fixedly connected by gluing.
[0010] Furthermore, a wiring harness through hole is provided at the center of the inspection port cover.
[0011] Furthermore, a plurality of groups of first reinforcing ribs are evenly spaced apart on the inspection port cover, and the first reinforcing ribs are arranged in a circular array with the wiring harness through hole as the center.
[0012] Furthermore, a plurality of groups of liquid leakage holes are provided on both the left and right sides of the middle floor body.
[0013] Furthermore, the upper outer panel of the rear door and the lower outer panel of the rear door are both straight-line strip structures.
[0014] Beneficial effects of the utility model: The utility model can adapt to hybrid and fuel four-wheel drive models and two-wheel drive models by setting three sets of fuel tank inspection ports on the middle floor body and setting inspection port covers according to needs. It can maximize the design and installation of the fuel tank area structure, simultaneously meet the future iteration of models on the same platform, and respond to the market quickly.
[0015] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a floor structure diagram of a car.
[0017] Figure 2 for Figure 1 AA cross-section diagram.
[0018] Figure 3 It is a top view of the middle floor body in the utility model.
[0019] Figure 4 It is a structural diagram of the inspection port cover in the utility model. DETAILED DESCRIPTION
[0020] like Figures 1 to 3 The structure of a middle floor of an automobile shown in the figure comprises a middle floor body 1, a middle fuel tank inspection port 2 is arranged in the middle of the middle floor body 1, side fuel tank inspection ports 3 are arranged on the left and right sides of the middle fuel tank inspection port 2 on the middle floor body 1, and a plurality of inspection port covers 4 adapted to the middle fuel tank inspection port 2 and the side fuel tank inspection port 3 are arranged on the middle floor body 1. The middle fuel tank inspection port 2 and the side fuel tank inspection port 3 are respectively arranged above the automobile fuel pump.
[0021] Preferably, in combination with the above scheme, in order to adapt to the model of a four-wheel drive vehicle, when the middle floor structure is used for a four-wheel drive vehicle, the inspection port cover 4 is not provided on the middle fuel tank inspection port 2, and the inspection port cover 4 is fixedly provided on the side fuel tank inspection port 3.
[0022] Preferably, in combination with the above scheme, in order to adapt to the model of a two-wheel drive vehicle, when the middle floor structure is used for a two-wheel drive vehicle, an inspection port cover 4 is fixedly provided on the middle fuel tank inspection port 2, and no inspection port cover 4 is provided on the side fuel tank inspection port 3.
[0023] Preferably, in combination with the above solution, in order to facilitate installation and fixation, the inspection port cover plate 4 is fixedly connected to the middle tank inspection port 2 and the side tank inspection port 3 near the edge by gluing.
[0024] Preferably, in combination with the above solution, the inspection port cover plate 4 is provided with a circle of first reinforcing ribs 43 near the edge, and the middle tank inspection port 2 and the side tank inspection port 3 are provided with second reinforcing ribs 11 near the edge, and the first reinforcing ribs 43 and the second reinforcing ribs 11 are overlapped and fixedly connected by gluing. A large area of reinforcing ribs is arranged on the middle floor body 1, and the inspection port cover plate 4, the middle tank inspection port 2 and the side tank inspection port 3 are also provided with first reinforcing ribs 43 and second reinforcing ribs 11 to increase the rigidity of the middle floor, avoid stamping rebound, and avoid deformation caused by people stepping on them.
[0025] Preferably, in combination with the above solution, in order to facilitate the installation and arrangement of the wiring harness, a wiring harness through hole 41 is provided at the center of the inspection port cover 4 .
[0026] Preferably, in combination with the above solution, in order to increase the structural rigidity of the inspection port cover 4, a plurality of groups of first reinforcing ribs 42 are evenly spaced on the inspection port cover 4, and the first reinforcing ribs 42 are arranged in a circular array with the harness through hole 41 as the center.
[0027] Preferably, in combination with the above solution, the left and right sides of the middle floor body 1 are provided with a plurality of groups of leakage holes 5. The arranged leakage holes 5 can ensure that the electrophoretic liquid can effectively enter and discharge within a specified time, ensuring that the middle floor plate can still achieve an effective anti-corrosion level despite its large area.
[0028] Since the middle floor has a large area, about 1.5 meters long and 0.7 meters wide, the difficulty of stamping and forming increases, and the scrap rate will also increase. In terms of material selection, DC01 steel plate material is used, and the material thickness is 0.65mm, which provides great advantages for stamping. Due to the huge cost of mold development for the fuel tank, the design should be combined with the existing physical matching of the fuel tank to develop the middle floor, while taking into account the future development of the car and the position of the inspection port required for the future iterative development of the fuel tank. Since the volume of the fuel tank of a hybrid car is smaller than that of an ordinary fuel vehicle, and the volume of the four-wheel drive vehicle is required to be maximized, and the fuel tank needs to avoid the layout space of the four-wheel drive, the fuel tank is usually designed as a saddle-type double inspection port structure, while the ordinary two-wheel drive vehicle only needs to set up a set of inspection ports. In order to save development costs and the cost of sealing plugs, equipment reservations are made on the stamping die, and different fuel tank inspection ports are provided according to different models, and three sets of fuel tank inspection ports are set up to meet project needs. There is a fuel tank under the middle floor body 1. In order to ensure a safe gap between the fuel tank and avoid shaking caused by the gap during driving, which affects the safety of the car, the lower end surface of the middle floor body 1 is divided into areas to be flat for fitting with the buffer block, thereby improving stability and safety factor during collision and driving.
[0029] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] The utility model is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions, they all fall within the protection scope of the utility model.
Claims
1. A vehicle middle floor structure, comprising a middle floor body (1), characterized in that: A middle fuel tank inspection opening (2) is provided in the middle of the middle floor body (1), and side fuel tank inspection openings (3) are provided on the middle floor body (1) at positions on the left and right sides of the middle fuel tank inspection opening (2), and a plurality of inspection opening cover plates (4) adapted to the middle fuel tank inspection opening (2) and the side fuel tank inspection opening (3) are provided on the middle floor body (1).
2. The vehicle floor structure according to claim 1, characterized in that: When the middle floor structure is used for a four-wheel drive vehicle, the middle fuel tank inspection opening (2) is not provided with an inspection opening cover plate (4), and the side fuel tank inspection openings (3) are all fixedly provided with inspection opening covers (4).
3. The vehicle floor structure according to claim 1, characterized in that: When the middle floor structure is used for a two-wheel drive vehicle, the middle fuel tank inspection opening (2) is fixedly provided with an inspection opening cover plate (4), while the side fuel tank inspection opening (3) is not provided with an inspection opening cover plate (4).
4. The vehicle floor structure according to claim 2 or 3, characterized in that: The inspection opening cover plate (4) is fixedly connected to the positions close to the edges of the middle oil tank inspection opening (2) and the side oil tank inspection opening (3) by gluing.
5. The vehicle floor structure according to claim 4, characterized in that: A circle of first reinforcing ribs (43) is arranged near the edge of the inspection opening cover plate (4), and second reinforcing ribs (11) are arranged near the edge of the middle tank inspection opening (2) and the side tank inspection opening (3). The first reinforcing ribs (43) and the second reinforcing ribs (11) are overlapped and fixedly connected by gluing.
6. The vehicle floor structure according to claim 1, characterized in that: A wiring harness through hole (41) is provided at the center of the inspection port cover (4).
7. The vehicle floor structure according to claim 6, characterized in that: A plurality of groups of first reinforcing ribs (42) are evenly spaced on the inspection port cover plate (4), and the first reinforcing ribs (42) are arranged in a circular array with the harness through hole (41) as the center.
8. The vehicle floor structure according to claim 1, characterized in that: A plurality of groups of liquid leakage holes (5) are provided on both the left and right sides of the middle floor body (1).