Bottom cover structure of vehicle

Abstract

The utility model provides a bottom cover structure of a vehicle. The bottom cover structure can prevent a fixing point of a bottom cover from bearing overlarge load when the bottom cover deforms due to the weight of accumulated snow on the bottom cover. A bottom cover structure of a vehicle includes: a bottom cover covering at least a portion of a lower portion of a vehicle body of the vehicle, the bottom cover including a body portion fixed to the vehicle body and a flexible portion supported by the body portion in a cantilevered manner and extending outward, the flexible portion being configured to be supported by the body portion in a cantilevered manner; the bottom cover is provided with a bending part at the junction of the body part and the flexible part, and the flexible part is suitable for being bent by taking the bending part as a fulcrum.

Description

Technical Field

[0001] This utility model relates to a partial structure of a vehicle, and more particularly to a vehicle underbody structure. Background Technology

[0002] In recent years, efforts to provide access to sustainable transportation systems that also consider vulnerable groups such as the elderly and children among traffic participants have become increasingly active. To achieve this, research and development are being undertaken to further improve traffic safety and convenience through advancements related to vehicle safety. However, the fixing points of vehicle undercarriages are prone to excessive loads when the undercarriage deforms due to the weight of accumulated snow, leading to loosening of the bolts and consequently affecting driving safety. Therefore, it is necessary to improve the vehicle undercarriage structure to overcome these problems. Utility Model Content

[0003] This utility model provides a vehicle underbody structure that can prevent the fixing points of the underbody from bearing excessive load when the underbody deforms due to the weight of snow accumulation on it.

[0004] This utility model provides a vehicle underbody structure, comprising: an underbody covering at least a portion of the lower part of the vehicle body, the underbody including a body portion and a flexible portion, the body portion being fixed to the vehicle body, the flexible portion being supported by the body portion in a cantilever manner and extending outward, the underbody having a bend at the junction of the body portion and the flexible portion, the flexible portion being adapted to flex around the bend as a fulcrum.

[0005] In an embodiment of this utility model, the bending portion includes a thin plate portion, which is thinner than the body portion.

[0006] In embodiments of this utility model, the lower surface of the main body, the lower surface of the flexible part, and the lower surface of the bending part are at the same height.

[0007] In an embodiment of this utility model, the bent portion includes a rib that protrudes upward.

[0008] In an embodiment of this utility model, the position of the vehicle's subframe corresponds to the position of the rib in the vertical direction.

[0009] In an embodiment of this utility model, the flexible portion has an outer rib that extends outward from the rib.

[0010] In an embodiment of this utility model, the lower arm of the vehicle is disposed above the bottom cover, and the bent portion is located inside the fixing portion of the lower arm in the width direction of the vehicle.

[0011] Based on the above, in the vehicle underbody structure of this utility model, a bending portion is provided between the main body and the flexible portion. Accordingly, when the flexible portion deforms downwards due to the weight of accumulated snow, the starting point of the deformation is located at the bending portion, thus suppressing the deformation of the main body. Therefore, the vehicle underbody structure of this utility model avoids the fixing points of the underbody bearing excessive load when the underbody deforms due to the weight of accumulated snow, thereby preventing the bolts at the fixing points from loosening.

[0012] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the lower part of the vehicle body according to an embodiment of the present invention;

[0014] Figure 2 and Figure 3 They are Figure 1 Top view of the two bottom covers;

[0015] Figure 4 yes Figure 3 A cross-sectional view of the bottom cover along line II;

[0016] Figure 5 yes Figure 3 A cross-sectional view of the bottom cover along line II-II;

[0017] Figure 6 yes Figure 1 A schematic diagram of some components of the vehicle;

[0018] Figure 7 yes Figure 2 A partial 3D view of the bottom cover;

[0019] Figure 8 yes Figure 1 The intention is to [describe] some components of the vehicle.

[0020] Explanation of reference numerals in the attached figures:

[0021] 10: Vehicles;

[0022] 11: Vehicle body;

[0023] 12: Lower arm;

[0024] 12a: Fixing part;

[0025] 13: Subframe;

[0026] 100: Bottom cover structure;

[0027] 110, 120: Bottom cover;

[0028] 112, 122: body part;

[0029] 114, 124: Flexible portion;

[0030] 116, 126: Bends;

[0031] 1161: Rib;

[0032] 1162: Outer rib;

[0033] 122a, 124a, 126a: Lower surface;

[0034] 1261: Thin plate section;

[0035] P: Fixed point;

[0036] S: Snow accumulation;

[0037] X, Y, Z: Axial axes. Detailed Implementation

[0038] Figure 1 This is a schematic diagram of the lower part of the vehicle body according to an embodiment of the present invention, showing the axes X, Y, and Z. Figure 2 and Figure 3 They are Figure 1 The top view of the two bottom covers. Please refer to... Figures 1 to 3 In this embodiment, the underbody structure 100 of the vehicle 10 includes two underbody covers 110 and 120. Underbody cover 110 covers a portion of the lower part of the body 11 of the vehicle 10, and underbody cover 120 covers another portion of the lower part of the body 11 of the vehicle 10.

[0039] The bottom cover 110 includes a main body 112 and a flexible portion 114 (also referred to as a movable portion). The main body 112 is fixed to the vehicle body 11 by screws at its fixing point P. The flexible portion 114 is connected to the main body 112 and extends outward. Specifically, the flexible portion 114 is supported by the main body 112 in a cantilever manner and extends outward from the main body 112 in the width direction (axial direction X) of the vehicle 10. The bottom cover 110 has a bend 116 at the junction of the main body 112 and the flexible portion 114. When the weight of snow accumulated on the flexible portion 114 is large enough, the flexible portion 114 bends or swings downward with the bend 116 as a fulcrum due to the weight of the snow, causing the snow to be discharged from the flexible portion 114 to the outside of the vehicle 10.

[0040] Similarly, the bottom cover 120 includes a main body 122 and a flexible portion 124 (also referred to as a movable portion). The main body 122 is fixed to the vehicle body 11 by screws at its fixing point P, and the flexible portion 124 is connected to the main body 122 and extends outward. Specifically, the flexible portion 124 is supported by the main body 122 in a cantilever manner and extends outward from the main body 122 in the width direction (axial direction X) of the vehicle 10. The bottom cover 120 has a bend 126 at the junction of the main body 122 and the flexible portion 124. When the weight of snow accumulated on the flexible portion 124 is large enough, the flexible portion 124 bends or swings downward with the bend 126 as a fulcrum due to the weight of the snow, causing the snow to be discharged from the flexible portion 124 to the outside of the vehicle 10.

[0041] As described above, in the underbody structure 100 of the vehicle 10 of this embodiment, the underbody 110 has a bending portion 116 between the main body 112 and the flexible portion 114, and the underbody 120 has a bending portion 126 between the main body 122 and the flexible portion 124. Accordingly, when the flexible portion 114 deforms downwards due to the weight of the accumulated snow, the starting point of its deformation is located at the bending portion 116, thus suppressing the deformation of the main body 112. Similarly, when the flexible portion 124 deforms downwards due to the weight of the accumulated snow, the starting point of its deformation is located at the bending portion 126, thus suppressing the deformation of the main body 122. Therefore, the underbody structure 100 of the vehicle 10 of this embodiment can prevent the fixing points P of the underbody 110 and 120 from bearing excessive load when the underbody 110 and 120 deform due to the weight of the accumulated snow, thereby preventing the bolts of the fixing points P from loosening.

[0042] Figure 4 yes Figure 3 A cross-sectional view of the bottom cover along line II. Figure 5 yes Figure 3 A cross-sectional view of the bottom cover along line II-II. Please refer to the diagram. Figure 4 and Figure 5 In this embodiment, the bent portion 126 of the bottom cover 120 includes a thin plate portion 1261, which is thinner than the main body portion 122. Accordingly, when the flexible portion 124 bends downwards due to the weight of the snow accumulation on it, the thinner and more easily deformable thin plate portion 1261 becomes the starting point for the deformation of the flexible portion 124. Furthermore, the lower surface 122a of the main body portion 122, the lower surface 124a of the flexible portion 124, and the lower surface 126a of the bent portion 126 are as follows... Figure 4 and Figure 5 The surfaces are at the same height and thus become flat. Accordingly, the lower surface of the bottom cover 120 is shaped to avoid air resistance, which is beneficial to the driving of the vehicle 10.

[0043] Figure 6 yes Figure 1 A schematic diagram of some components of the vehicle. Please refer to it. Figure 6In this embodiment, the lower arm 12 of the vehicle 10's suspension system is positioned above the bottom cover 120, and the bent portion 126 of the bottom cover 120 is located inside the fixed portion 12a of the lower arm 12 in the width direction (axial direction X) of the vehicle 10. Accordingly, even if the lower arm 12 swings downwards, there is sufficient space between the flexible portion 124 and the lower arm 12 to prevent snow accumulation S from getting stuck between the flexible portion 124 and the lower arm 12, thus allowing the flexible portion 124 to smoothly flex downwards (e.g., Figure 6 (As shown by the dashed line) to remove the snow accumulation S.

[0044] Figure 7 yes Figure 2 A partial 3D view of the bottom cover. Figure 8 yes Figure 1 The intention is to describe some components of the vehicle. Please refer to [reference needed]. Figure 7 and Figure 8 In this embodiment, the bent portion 116 of the bottom cover 110 includes a rib 1161 that protrudes upward. Accordingly, when the flexible portion 114 bends downward due to the weight of the snow accumulation on it, the bent portion 116, which is easily deformable due to the rib 1161, becomes the starting point for the deformation of the flexible portion 114. Furthermore, as... Figure 8 As shown, the position of the subframe 13 of the vehicle 10 corresponds to the position of the rib 1161 in the vertical direction (axial direction Z). Accordingly, by reducing the space between the subframe 13 and the rib 1161, snow can be prevented from penetrating into the inside of the vehicle 10 along the width direction (axial direction X), while also making it easier for the accumulated snow S to break up due to vibration and be discharged to the outside of the vehicle 10.

[0045] Please refer to Figure 7 In this embodiment, the flexible portion 116 of the bottom cover 110 has an outer rib 1162, which extends from the rib 1161 toward the outer side of the vehicle 10 in the width direction (axial direction X). Accordingly, the rigidity of the flexible portion 116 can be increased by the outer rib 1162 and the vibration of the flexible portion 116 caused by wind and vibration during driving can be avoided.

[0046] In summary, in the vehicle underbody structure of this utility model, a bending portion is provided between the main body and the flexible portion. Accordingly, when the flexible portion deforms downwards due to the weight of accumulated snow, the starting point of the deformation is located at the bending portion, thus suppressing the deformation of the main body. Therefore, the vehicle underbody structure of this utility model avoids excessive load on the fixing points of the underbody when the underbody deforms due to the weight of accumulated snow, thereby preventing the bolts at the fixing points from loosening.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vehicle underbody structure, characterized in that, include: A bottom cover that covers at least a portion of the lower part of the vehicle body. The bottom cover includes a main body and a flexible portion. The main body is fixed to the vehicle body, and the flexible portion is supported by the main body in a cantilever manner and extends outward. The bottom cover has a bend at the junction of the body and the flexible portion, and the flexible portion is adapted to flex around the bend as a fulcrum.

2. The vehicle underbody structure according to claim 1, characterized in that, The bending portion includes a thin plate portion, which is thinner than the body portion.

3. The vehicle underbody structure according to claim 1, characterized in that, The lower surfaces of the main body, the flexible portion, and the bending portion are at the same height.

4. The vehicle underbody structure according to claim 1, characterized in that, The bent portion includes ribs that protrude upwards.

5. The vehicle underbody structure according to claim 4, characterized in that, The position of the vehicle's subframe corresponds to the position of the rib in the vertical direction.

6. The vehicle underbody structure according to claim 4, characterized in that, The flexible portion has an outer rib that extends outward from the rib.

7. The vehicle underbody structure according to claim 1, characterized in that, The lower arm of the vehicle is positioned above the bottom cover. The bent portion is located inside the fixing portion of the lower arm in the width direction of the vehicle.

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