Lightweight automobile floor

Abstract

The utility model relates to a light-weight automobile floor which comprises a bottom plate, a core plate and a top plate. The core plate is arranged between the bottom plate and the top plate; the first supporting plate is horizontally arranged between the bottom plate and the core plate; the first supporting plate comprises a connecting section, and a left supporting section and a right supporting section which are vertically arranged; the upper end of the left supporting section is connected with the upper end of the right supporting section through the connecting section. The lower end of the left supporting section is provided with a left flanging which is folded towards one side far away from the right supporting section; the lower end of the right supporting section is provided with a right flanging which is folded towards one side far away from the left supporting section; the second supporting plate is horizontally arranged between the core plate and the top plate; the structure of the second supporting plate is the same as that of the first supporting plate; wherein the first supporting plate is parallel to the second supporting plate; the core plate extends out of a gap between the bottom plate and the top plate; the core plate is connected with a doorsill beam of an automobile. According to the light-weight automobile floor, the light-weight automobile floor is hollow, so that the weight of the automobile floor is obviously reduced compared with an integral part formed by integral punching.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile floor, especially light-weighted automobile floor. BACKGROUND

[0002] The automobile floor is an important component of the vehicle body structure, which directly supports the weight of the seats, center console and passengers in the vehicle. Therefore, the automobile floor needs to have sufficient rigidity and strength to withstand the vibration and impact during dynamic driving. The existing automobile floor adopts a whole piece formed by integral stamping, which has a high weight. This directly leads to a slow response of the vehicle during acceleration, turning and braking, especially when frequent starting and stopping are required on urban roads or emergency avoidance, the control flexibility is significantly reduced. At the same time, the heavy weight of the automobile floor also increases the energy consumption of the vehicle and reduces the cruising range of the vehicle.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0004] In view of the above shortcomings of the prior art, the purpose of the present utility model is to provide a light-weighted automobile floor to reduce the weight of the automobile floor.

[0005] The technical solution of the utility model is as follows:

[0006] The light-weighted automobile floor comprises:

[0007] a bottom plate, a core plate and a top plate; the core plate is arranged between the bottom plate and the top plate;

[0008] a first support plate horizontally arranged between the bottom plate and the core plate; the first support plate comprises a connecting section, a left support section and a right support section arranged vertically; the upper end of the left support section is connected to the upper end of the right support section through the connecting section; the lower end of the left support section is arranged with a left turn-up edge on the side away from the right support section; the lower end of the right support section is arranged with a right turn-up edge on the side away from the left support section;

[0009] a second support plate horizontally arranged between the core plate and the top plate; the structure of the second support plate is the same as that of the first support plate;

[0010] Wherein, the first support plate is parallel to the second support plate; the core plate extends from the gap between the bottom plate and the top plate; the core plate is connected to the rocker beam of the vehicle.

[0011] Further, the connecting section of the first support plate contacts the core plate; the left and right turning edges of the first support plate contact the bottom plate; the left and right turning edges of the adjacent first support plate contact.

[0012] Further, the connecting section of the second support plate contacts the top plate; the left and right turning edges of the second support plate contact the core plate; the left and right turning edges of the adjacent second support plate contact.

[0013] Further, in the vertical direction, the left support section can be inclined to the right support section, and the right support section can be inclined to the left support section.

[0014] Further, the surface of the rocker beam contacting the bottom plate is provided with a protrusion; and the outer edge of the bottom plate is provided with a notch for the protrusion to be clamped into.

[0015] Further, the rocker beam is provided with a pressing plate; the core plate contacting the rocker beam is arranged between the rocker beam and the pressing plate; the surface of the pressing plate contacting the top plate is provided with a protrusion; and the outer edge of the top plate is provided with a notch for the protrusion to be clamped into.

[0016] Further, the bottom plate is provided with a bottom clamping groove; and the left and right turning edges of the first support plate are arranged in the bottom clamping groove.

[0017] Further, the first support plate is not provided with the left turning edge contacting the right turning edge, or the first support plate is not provided with the right turning edge contacting the left turning edge, and the bottom plate is connected by a bottom bolt.

[0018] Further, the top plate is provided with a top clamping groove; and the connecting section of the second support plate is arranged in the top clamping groove.

[0019] Further, the second support plate is not provided with the left turning edge contacting the right turning edge, or the second support plate is not provided with the right turning edge contacting the left turning edge, and the core plate is connected by a top bolt.

[0020] The beneficial technical effects of the utility model are as follows:

[0021] (1) The lightweight automobile floor in the utility model, through the bottom plate, the core plate and the top plate combination, the gap is left between the bottom plate and the core plate, and between the core plate and the top plate, namely the hollow setting in the lightweight automobile floor, compared with the integral stamping of the integral piece, the weight of the automobile floor is significantly reduced. The weight of the automobile floor is reduced, the overall vehicle quality of the automobile is reduced, the thrust-to-weight ratio of the automobile is improved, the starting and acceleration of the automobile are more sensitive, the braking distance of the automobile is shortened, and the handling performance of the automobile is improved. At the same time, the overall vehicle quality of the automobile is reduced, the load of the automobile is reduced, the energy consumption of the automobile is reduced and the endurance mileage of the automobile is improved. That is, through the weight reduction of the automobile floor, the overall optimization of energy saving-performance-cost-environmental protection is realized. Among them, the first support plate and the second support plate are filled between the bottom plate and the core plate and between the core plate and the top plate. The first support plate and the second support plate vertically intersected form multiple force transmission paths, uniformly transmit the load between the top plate and the bottom plate, avoid local stress concentration, improve the stiffness of the lightweight automobile floor, and guarantee the load-bearing performance of the lightweight automobile floor. At the same time, when impacted, the first support plate and the second support plate cross arranged absorb energy through plastic deformation and fracture, improve the crashworthiness of the automobile.

[0022] (2) Further, the left flange and the right flange between adjacent first support plates are in contact, and the left flange and the right flange between adjacent second support plates are in contact, so that adjacent first support plates and second support plates are in contact with each other and transmit force. Reduce the offset of the first support plate and the second support plate, and improve the support performance of the entire automobile floor.

[0023] (3) Further, bottom clamping grooves and top clamping grooves are respectively formed on the bottom plate and the top plate to clamp the first support plate and the second support plate, further improving the stability of the first support plate and the second support plate between the bottom plate and the core plate and between the core plate and the bottom plate. Prevent the first support plate and the second support plate from losing stability and damaging the structure of the lightweight automobile floor, while more efficiently transmitting the load between the bottom plate, the core plate and the top plate, and avoiding stress concentration. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A three-dimensional structure schematic diagram of the lightweight automobile floor of the embodiment one of the present disclosure is shown.

[0025] Figure 2 A partial enlarged view of the lightweight automobile floor of the embodiment one of the present disclosure is shown.

[0026] Figure 3 A cooperation structure schematic diagram of the lightweight automobile floor of the embodiment one of the present disclosure with the rocker beam is shown.

[0027] Figure 4 A partial schematic diagram of the lightweight automobile floor of the embodiment two of the present disclosure is shown.

[0028] Figure 5 A schematic diagram of the assembly structure of the first support plate and the base plate in the lightweight automotive floor of Embodiment 3 of this disclosure is shown.

[0029] Figure 6 A schematic diagram of the assembly structure of the second support plate and the top plate in the lightweight automotive floor of Embodiment 3 of this disclosure is shown.

[0030] Marked in the attached diagram:

[0031] 1. Base plate; 11. Bottom slot; 12. Bottom bolt; 13. Notch; 2. First support plate; 21. Left flange; 22. Left support section; 23. Connecting section; 24. Right support section; 25. Right flange; 3. Core plate; 4. Second support plate; 5. Top plate; 51. Top slot; 52. Top bolt; 6. Sill beam; 7. Pressure plate; 71. Extension; 72. Fastening bolt. Detailed Implementation

[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0033] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Example 1

[0035] Figure 1 A three-dimensional structural schematic diagram of a lightweight automotive floor according to Embodiment 1 of this disclosure is shown. Figure 2 A partial enlarged view at point A shows a lightweight automotive floor according to Embodiment 1 of this disclosure. Figure 3 A schematic diagram of the fit between the lightweight automotive floor and the door sill beam according to Embodiment 1 of this disclosure is shown. Please refer to... Figure 1 ,Figure 2 and Figure 3 The light-weight automobile floor includes a bottom plate 1, a core plate 3, a top plate 5, a first support plate 2 and a second support plate 4. The bottom plate 1, the core plate 3 and the top plate 5. The core plate 3 is arranged between the bottom plate 1 and the top plate 5. A gap is left between the core plate 3 and the top plate 5, i.e. the light-weight automobile floor is hollowly arranged, which significantly reduces the weight of the automobile floor compared with a whole piece formed by overall stamping. The reduction of the weight of the automobile floor reduces the overall mass of the automobile, improves the power-to-weight ratio of the automobile, makes the automobile start and accelerate more sensitive, shortens the braking distance of the automobile and improves the handling performance of the automobile. At the same time, the reduction of the overall mass of the automobile reduces the load of the automobile, reduces the energy consumption of the automobile and improves the cruising range of the automobile. That is, through the weight reduction of the automobile floor, the overall optimization of energy saving, performance, cost and environmental protection is realized. The first support plate 2 is horizontally arranged between the bottom plate 1 and the core plate 3. The first support plate 2 includes a connecting section 23, a left support section 22 and a right support section 24 arranged vertically. The upper end of the left support section 22 is connected to the upper end of the right support section 24 through the connecting section 23. The lower end of the left support section 22 is arranged to the left of the right support section 24. The lower end of the right support section 24 is arranged to the left of the left support section 22. The second support plate 4 is horizontally arranged between the core plate 3 and the top plate 5. The structure of the second support plate 4 is the same as that of the first support plate 2. Among them, the first support plate 2 is parallel to the second support plate 4. The core plate 3 extends from the gap between the bottom plate 1 and the top plate 5. The core plate 3 is connected to the rocker beam 6 of the automobile. The first support plate 2 and the second support plate 4 arranged vertically intersected form multiple force transmission paths, uniformly transmit the load between the top plate 5 and the bottom plate 1, avoid local stress concentration, improve the stiffness of the light-weight automobile floor and ensure the load-bearing performance of the light-weight automobile floor. At the same time, when impacted, the first support plate 2 and the second support plate 4 arranged in cross form absorb energy through plastic deformation and fracture, improving the crashworthiness of the automobile.

[0036] In some embodiments, the first support plate 2 and the bottom plate 1, the core plate 3, and the second support plate 4 and the core plate 3, the top plate 5 can be connected in the form of threaded connection, welding or bonding.

[0037] Please refer to Figure 1 and Figure 2The connecting section 23 of the first support plate 2 contacts the core plate 3. The left flange 21 and right flange 25 of the first support plate 2 contact the bottom plate 1. The left flange 21 and right flange 25 of adjacent first support plates 2 are in contact. The connecting section 23 of the second support plate 4 contacts the top plate 5. The left flange 21 and right flange 25 of the second support plate 4 contact the core plate 3. The left flange 21 and right flange 25 of adjacent second support plates 4 are in contact. The contact between the left flange 21 and right flange 25 of adjacent second support plates 4 allows adjacent first support plates 2 and second support plates 4 to contact and support each other, transmitting force. This prevents the first support plates 2 and second support plates 4 from becoming unstable and damaging the structure of the lightweight automotive floor, while also more efficiently transmitting the load between the bottom plate 1, core plate 3, and top plate 5, avoiding stress concentration, and improving the overall support performance of the automotive floor.

[0038] In this embodiment, vertically, the left support segment 22 can be tilted toward the right support segment 24, and the right support segment 24 can be tilted toward the left support segment 22. The tilted arrangement of the left support segment 22 and the right support segment 24 decomposes the horizontal pressure / tension transmitted by the top plate 5 and the core plate 3 into vertical tension / pressure, avoiding moment concentration and improving the structural strength of the lightweight automotive floor.

[0039] The specific workflow of this embodiment is as follows:

[0040] When installing the lightweight automotive floor, the core plate 3 is fastened to the sill beam 6 by bolts 72. At the same time, the sill beam 6 is located close to the outer edge of the base plate 1 on its vertical side, restricting the movement of the base plate 1 and thus improving the stability of the connection between the lightweight automotive floor and the sill beam 6.

[0041] When heavy objects compress the lightweight floor or occupants step on it, the load on the top plate 5 is transmitted to the bottom plate 1 along the second support plate 4, the core plate 3, and the first support plate 2. The first support plate 2 and the second support plate 4, which are arranged perpendicularly, form multiple force transmission paths, uniformly transmitting the load between the top plate 5 and the bottom plate 1.

[0042] Example 2

[0043] Figure 4 A partial schematic diagram of the notch area is shown in the lightweight automotive floor of Embodiment 2 of this disclosure. Please refer to... Figure 3 and Figure 4 Based on Embodiment 1, Embodiment 2 discloses a lightweight automotive floor, in which a protrusion is provided on the surface of the door sill beam 6 that contacts the base plate 1. A notch 13 is provided on the outer edge of the base plate 1 for the protrusion to engage. The cooperation between the door sill beam 6 and the base plate 1 through the notch 13 and the protrusion restricts the sliding of the base plate 1 along the door sill beam 6, thereby improving the stability of the connection between the door sill beam 6 and the lightweight automotive floor.

[0044] In the embodiment, the pressing plate 7 is arranged on the rocker beam 6. The core plate 3 contacts the rocker beam 6, and is arranged between the rocker beam 6 and the pressing plate 7. The pressing plate 7 is connected to the rocker beam 6 by the fastening bolt 72. When the fastening bolt 72 is screwed, the pressing plate 7 is fixed on the rocker beam 6, the position of the core plate 3 is clamped and fixed by the rocker beam 6 and the pressing plate 7, and then the lightweight automobile floor and the rocker beam 6 are fixedly connected.

[0045] Preferably, the pressing plate 7 is provided with a protrusion which contacts the surface of the top plate 5. The outer edge of the top plate 5 is provided with a notch 13 for the protrusion to be clamped into. The cooperation between the notch 13 and the protrusion between the pressing plate 7 and the top plate 5 limits the sliding of the top plate 5 along the pressing plate 7, and then improves the stability of the connection between the rocker beam 6 and the lightweight automobile floor.

[0046] More preferably, the pressing plate 7 is provided with an extension 71. When the lightweight automobile floor is arranged on the rocker beam 6, the extension 71 contacts the surface of the top plate 5 and the second support plate 4, further limits the movement of the lightweight automobile floor, and enhances the connection stability between the lightweight automobile floor and the rocker beam 6.

[0047] Embodiment three

[0048] Figure 5 The assembly structure diagram of the first support plate and the bottom plate in the lightweight automobile floor of the third embodiment of the present disclosure is shown. Please refer to Figure 5 Based on the first embodiment, the third embodiment discloses a lightweight automobile floor. The bottom plate 1 is provided with a bottom clamping groove 11. The left flange 21 and the right flange 25 of the first support plate 2 are arranged in the clamping groove of the bottom plate 1. Specifically, the width of the clamping groove of the bottom plate 1 is equal to the sum of the widths of the left flange 21 and the right flange 25. The height difference between the clamping groove of the bottom plate 1 and the bottom plate 1 limits the sliding of the first support plate 2 along the bottom plate 1, and then improves the structural strength of the entire lightweight automobile floor.

[0049] Preferably, the first support plate 2 is not provided with the left flange 21 which contacts the right flange 25, or the first support plate 2 is not provided with the right flange 25 which contacts the left flange 21, and the bottom plate 1 is connected by the bottom bolt 12. That is, the outermost first support plate 2 is connected to the bottom plate 1 by the bottom bolt 12. The other support plates inside the peripheral first support plate 2 support each other, that is, all the first support plates 2 are directly or indirectly connected to the bottom plate 1 by the bottom bolt 12, and the stability of the second support plate 4 between the bottom plate 1 and the core plate 3 is improved.

[0050] Figure 6 The assembly structure diagram of the second support plate and the top plate in the lightweight automobile floor of the third embodiment of the present disclosure is shown. Please refer to Figure 6The top plate 5 is provided with a top clamping groove 51, and the connecting section 23 of the second support plate 4 is arranged in the top clamping groove 51. Specifically, the width of the top clamping groove 51 is equal to the width of the connecting section 23 of the second support plate 4. The height difference between the top clamping groove 51 and the top plate 5 limits the sliding of the second support plate along the top plate 5, thereby improving the structural strength of the entire lightweight automobile floor.

[0051] Preferably, the left flange 21 of the second support plate 4 does not contact the right flange 25, or the right flange 25 of the second support plate 4 does not contact the left flange 21, and the core plate 3 is connected by the top bolt 52. That is, the outermost second support plate 4 is connected to the top plate 5 by the top bolt 52. The other support plates inside the outer second support plate 4 are in contact with each other, that is, all the second support plates 4 are directly or indirectly connected to the top plate 5 by the top bolt 52, thereby improving the stability of the second support plate 4 between the core plate 3 and the top plate 5.

[0052] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0053] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A lightweight automobile floor characterized by, The light-weight automobile floor comprises: a bottom plate, a core plate and a top plate; the core plate is arranged between the bottom plate and the top plate; a first support plate horizontally arranged between the bottom plate and the core plate; the first support plate comprises a connecting section, a vertically arranged left support section and a right support section; the upper end of the left support section is connected to the upper end of the right support section through the connecting section; the lower end of the left support section is arranged to be folded to a left flange away from the right support section; the lower end of the right support section is arranged to be folded to a right flange away from the left support section; a second support plate horizontally arranged between the core plate and the top plate; the structure of the second support plate is the same as that of the first support plate; wherein the first support plate is parallel to the second support plate; the core plate extends from the gap between the bottom plate and the top plate; the core plate is connected to the rocker beam of the automobile.

2. The light-weight automobile floor according to claim 1, characterized by: The connecting section of the first support plate contacts the core plate; the left flange and the right flange of the first support plate contact the bottom plate; the left flange and the right flange of the adjacent first support plate contact.

3. The light-weight automobile floor according to claim 1, characterized by: The connecting section of the second support plate contacts the top plate; the left flange and the right flange of the second support plate contact the core plate; The left flange and the right flange of the adjacent second support plate contact.

4. The light-weight automobile floor according to claim 1, characterized by: In the vertical direction, the left support section can be inclined to the right support section, and the right support section can be inclined to the left support section.

5. The light-weight automobile floor according to claim 1, characterized by: The rocker beam contacts the surface of the bottom plate to set a protrusion; the outer edge of the bottom plate is provided with a notch for the protrusion to be clamped into.

6. The light-weight automobile floor according to claim 5, characterized by: A pressing plate is arranged on the rocker beam; the core plate contacting the rocker beam is arranged between the rocker beam and the pressing plate; the pressing plate contacts the surface of the top plate to set a protrusion; the outer edge of the top plate is provided with a notch for the protrusion to be clamped into.

7. The light-weight automobile floor according to claim 1, characterized by: A bottom clamping groove is formed on the bottom plate; the left flange and the right flange of the first support plate are arranged in the bottom plate clamping groove.

8. The light-weight automobile floor according to claim 7, characterized by: The left flange on the first support plate that does not contact the right flange, or the right flange on the first support plate that does not contact the left flange, is connected to the bottom plate by a bottom bolt.

9. The light-weight automobile floor according to claim 1, characterized by: A top clamping groove is formed on the top plate; the connecting section of the second support plate is arranged in the top clamping groove.

10. The light-weight automobile floor according to claim 9, characterized by: The left flange on the second support plate that does not contact the right flange, or the right flange on the second support plate that does not contact the left flange, is connected to the core plate by a top bolt.

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