Bottom guard plate assembly and vehicle with same

By designing the air guide strip in the car bottom guard assembly to form a low pressure zone, increasing the vertical load between the vehicle and the ground, the problem of the car sliding or yawing under the side wind is solved, and the vehicle's crosswind stability and driving safety are improved.

CN222682350UActive Publication Date: 2025-03-28GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202421296769.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-06
Publication Date
2025-03-28
Estimated Expiration
2034-06-06

AI Technical Summary

Technical Problem

Cars are easily affected by crosswind during driving, resulting in side slippage or yaw movement, affecting the stability of the vehicle and driving safety.

Method used

A bottom guard assembly is designed, including a bottom guard body and a plurality of air guide strips. The air guide strips are connected to the lower side of the bottom guard body and extend downward, extending inclinedly to form a low pressure zone, thereby increasing the vertical load between the vehicle and the ground and increasing the contact force between the tire and the ground.

Benefits of technology

By increasing the vertical load between the vehicle and the ground, the tires can fit the road more closely, increasing the contact force between the tires and the ground, thereby improving the crosswind stability and driving safety when the vehicle is driving.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bottom protection plate assembly and a vehicle with the bottom protection plate assembly. The bottom protection plate assembly comprises a bottom protection plate body, and the multiple air guide strips are connected to the lower side of the bottom protection plate body and extend downwards, and the multiple air guide strips obliquely extend relative to the front-back direction of the vehicle in the direction of the vehicle from front to back. According to the bottom guard plate assembly, a strong low-pressure area can be generated at the bottom of the bottom guard plate body by arranging the multiple air guide strips, and then downward pressure is formed, so that the vertical load between a vehicle and the ground can be increased, a tire can be more tightly attached to the road surface, the contact force between the tire and the ground can be increased, and the service life of the tire is prolonged. Therefore, the crosswind stability during vehicle driving can be improved, and the driving safety is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an underbody guard plate assembly and a vehicle having the same. Background Art

[0002] When a car is driving, it will be affected by the surrounding wind, causing it to skid or yaw, affecting the stability of the vehicle and causing driving safety. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an underbody guard assembly, which can increase the vertical load between the vehicle and the ground, so that the tire can fit the road surface more closely, thereby increasing the contact force between the tire and the ground, thereby improving the crosswind stability of the vehicle when driving and improving driving safety.

[0004] The utility model also provides a vehicle with the bottom guard plate assembly.

[0005] According to the first aspect of the utility model, the bottom guard plate assembly includes: a bottom guard plate body; a plurality of wind guide strips, wherein the plurality of wind guide strips are connected to the lower side of the bottom guard plate body and extend downward, and in the front-to-rear direction of the vehicle, the plurality of wind guide strips extend obliquely relative to the front-to-rear direction of the vehicle.

[0006] According to the bottom guard plate assembly of the utility model, by providing a plurality of wind guide strips, a strong low-pressure area can be generated at the bottom of the bottom guard plate body, thereby forming downforce, thereby increasing the vertical load between the vehicle and the ground, allowing the tire to fit the road surface more closely, thereby increasing the contact force between the tire and the ground, thereby improving the crosswind stability of the vehicle during driving and improving driving safety.

[0007] According to some embodiments of the present utility model, in the front-rear direction of the vehicle, the air guide strip extends along an arc line that is raised toward a center line of the vehicle that is perpendicular to the left-right direction.

[0008] According to some embodiments of the present invention, the plurality of air guide strips are formed into two air guide groups, each air guide group includes a plurality of the air guide strips arranged left and right, and the plurality of the air guide strips of the two air guide groups are symmetrically arranged about a center line of the vehicle perpendicular to the left and right directions.

[0009] According to some embodiments of the present invention, a plurality of the air guide strips in the same air guide group are parallel to each other.

[0010] According to some embodiments of the present invention, in the direction from front to rear of the vehicle, the height of the front end of the air guide strip in the up-down direction gradually increases.

[0011] According to some embodiments of the present invention, each of the air guide strips is snap-connected to the bottom guard plate body.

[0012] According to some embodiments of the utility model, it also includes: a fixing plate, which is arranged on the lower side of the bottom guard plate body and is clamped and connected to the bottom guard plate body, and the wind guide strip is fixed on the lower side surface of the fixing plate.

[0013] According to some embodiments of the utility model, a buckle is formed on one of the fixing plate and the bottom guard plate body, and a clamping hole is formed on the other one, and the buckle fits in the clamping hole.

[0014] According to some embodiments of the utility model, a recessed limiting groove is formed on the lower surface of the bottom guard plate body, and the fixing plate is arranged in the limiting groove.

[0015] A vehicle according to a second aspect of the utility model comprises an underbody guard plate assembly according to the first aspect of the utility model.

[0016] According to the vehicle of the utility model, the overall performance of the vehicle is improved by providing the underbody guard plate assembly of the first aspect.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a bottom guard plate assembly according to an embodiment of the utility model;

[0019] Figure 2 is a schematic diagram of another angle of the bottom guard plate assembly according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the bottom guard plate assembly according to another angle of the embodiment of the utility model.

[0021] Reference numerals:

[0022] 100, bottom guard plate assembly;

[0023] 10. Bottom guard plate body; 11. Buckle;

[0024] 20. Wind guide strip;

[0025] 30. Fixed plate. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] Reference below Figure 1-Figure 3 The bottom guard plate assembly 100 according to the first embodiment of the utility model is described.

[0028] like Figure 1 As shown, the bottom guard plate assembly 100 according to the embodiment of the utility model includes: a bottom guard plate body 10 and a plurality of wind guide strips 20, wherein the bottom guard plate body 10 serves as the basic structure of the bottom guard plate assembly 100, and is mainly used to protect the bottom of the vehicle from damage such as being hit by stones and scratches, while providing an installation platform for installing other components; the wind guide strips 20 are mainly used to contact the airflow at the bottom of the vehicle and guide the airflow to flow backward along the wind guide strips 20.

[0029] For example, the number of the air guide strips 20 may be two, three or more.

[0030] Specifically, the plurality of air guide strips 20 are connected to the lower side of the bottom guard plate body 10 and extend downward. In the front-to-back direction of the vehicle, the plurality of air guide strips 20 extend obliquely relative to the front-to-back direction of the vehicle.

[0031] That is to say, in the direction from front to rear of the vehicle, the wind guide strip 20 is arranged in a non-linear manner, and forms a certain angle with the center line perpendicular to the left and right directions. Therefore, when the airflow moves backward along the wind guide strip 20, a vortex can be formed at the edge of the wind guide strip 20, wherein the generation of the vortex will produce a strong low-pressure area at the bottom of the bottom guard plate body 10, thereby forming a pressure difference between the pressure under the vehicle and the relatively high air pressure on the roof or the side of the vehicle body, thereby forming downforce. Therefore, the vertical load between the vehicle and the ground can be increased, so that the tire can fit the road more closely, and then the contact force between the tire and the ground can be increased, thereby improving the side wind stability of the vehicle during driving.

[0032] According to the bottom guard plate assembly 100 of the embodiment of the utility model, a plurality of wind guide strips 20 are provided, so that a strong low-pressure area can be generated at the bottom of the bottom guard plate body 10, thereby forming downforce, thereby increasing the vertical load between the vehicle and the ground, allowing the tire to fit more closely to the road surface, thereby increasing the contact force between the tire and the ground, thereby improving the crosswind stability of the vehicle during driving and improving driving safety.

[0033] According to some embodiments of the present invention, Figure 1As shown, in the front-to-rear direction of the vehicle, the air guide strip 20 extends along an arc that is convex toward the center line of the vehicle perpendicular to the left-right direction. In this way, it is easier to form a vortex at the rear edge of the air guide strip 20, and then it is easier to generate a low-pressure area on the lower side of the bottom guard plate body 10 to form downforce, thereby resisting the vehicle body from lifting in a strong crosswind environment, increasing the contact force between the tire and the ground, and thus improving the crosswind stability of the vehicle when driving.

[0034] According to some embodiments of the present invention, Figure 1 As shown, the multiple air guide strips 20 are formed into two air guide groups, each of which includes multiple air guide strips 20 arranged left and right, and the multiple air guide strips 20 of the two air guide groups are arranged symmetrically about the center line of the vehicle perpendicular to the left and right directions. In this way, it is helpful to form a consistent airflow management effect in the width direction of the vehicle, and it is helpful to balance the air pressure on the left and right sides of the vehicle, thereby further reducing the impact of side wind and improving the driving stability of the vehicle.

[0035] According to some embodiments of the present invention, Figure 1 As shown, multiple air guide strips 20 in the same air guide group are parallel to each other. The parallel air guide strips 20 can ensure that the airflow is distributed more evenly when passing through the bottom of the vehicle, thereby making the distribution of the low pressure area generated on the lower side of the bottom guard plate body 10 more even, thereby further improving the crosswind stability of the vehicle when driving; at the same time, the parallel air guide strips 20 are arranged neatly and orderly, which can make the bottom of the vehicle neater, thereby improving the appearance of the vehicle.

[0036] According to some embodiments of the present invention, Figure 3 As shown, in the direction from front to rear of the vehicle, the height of the front end of the air guide strip 20 in the vertical direction gradually increases. This is conducive to reducing the resistance of the front end of the air guide strip 20 to the airflow, so that the airflow can flow more smoothly backward, thereby improving the aerodynamic performance of the vehicle.

[0037] According to some embodiments of the present invention, each air guide strip 20 is connected to the bottom guard plate body 10 by snapping. The snapping structure is relatively simple, which facilitates the installation and removal of the air guide strip 20 and the bottom guard plate body 10, thereby improving the assembly rate of the bottom guard plate assembly 100 and reducing the maintenance cost of the bottom guard plate assembly 100.

[0038] According to some embodiments of the present invention, Figure 1-Figure 2As shown, the bottom guard plate body 10 further includes a fixing plate 30, which is arranged at the lower side of the bottom guard plate body 10 and connected with the bottom guard plate body 10 by clamping, and the air guide strip 20 is fixed to the lower side surface of the fixing plate 30. The fixing plate 30 is used to realize the possibility of clamping connection between the air guide strip 20 and the bottom guard plate body 10, and at the same time, the fixing plate 30 can also enhance the overall structural strength of the bottom guard plate body 10, thereby improving the protective effect of the bottom guard plate body 10.

[0039] According to some embodiments of the present invention, Figure 1-Figure 2 As shown, a buckle 11 is formed on one of the fixing plate 30 and the bottom guard plate body 10, and a clamping hole is formed on the other, and the buckle 11 fits in the clamping hole. It can be understood that if the buckle 11 is formed on the fixing plate 30, the clamping hole is formed on the bottom guard plate body 10; if the buckle 11 is formed on the bottom guard plate body 10, the clamping hole is formed on the fixing plate 30. The buckle 11 and the clamping hole have simple structures and are easy to manufacture, thereby reducing the production cost of the bottom guard plate assembly 100.

[0040] For example Figure 1 As shown, the number of buckles 11 and the number of holes are both multiple, and the multiple buckles 11 and the holes are arranged at intervals along the front-to-back direction of the vehicle, and the multiple buckles 11 and the multiple holes correspond to each other. The multiple buckles 11 and the multiple holes can further improve the installation stability of the fixing plate 30 and the bottom guard plate body 10.

[0041] According to some embodiments of the present invention, a concave limiting groove is formed on the lower surface of the bottom guard plate body 10, and the fixing plate 30 is arranged in the limiting groove. The limiting groove can limit the installation position of the fixing plate 30, thereby increasing the installation speed of the fixing plate 30, thereby increasing the assembly speed of the entire bottom guard plate assembly 100.

[0042] The vehicle according to the embodiment of the second aspect of the utility model comprises the bottom guard plate assembly 100 according to the embodiment of the first aspect of the utility model.

[0043] According to the vehicle of the embodiment of the utility model, the overall performance of the vehicle is improved by providing the bottom guard plate assembly 100 of the first embodiment.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like 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 referred device or element 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.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bottom guard plate assembly, characterized in that: include: Bottom guard body; A plurality of wind guide strips are connected to the lower side of the bottom guard plate body and extend downward. In the front-to-back direction of the vehicle, the plurality of wind guide strips extend obliquely relative to the front-to-back direction of the vehicle, and the wind guide strips extend along an arc line protruding toward the center line of the vehicle perpendicular to the left-right direction.

2. The bottom guard plate assembly according to claim 1, characterized in that: The plurality of air guide strips are formed into two air guide groups, each air guide group includes a plurality of air guide strips arranged left and right, and the plurality of air guide strips of the two air guide groups are arranged symmetrically about a center line of the vehicle perpendicular to the left and right directions.

3. The bottom guard plate assembly according to claim 2, characterized in that: The plurality of air guide strips in the same air guide group are parallel to each other.

4. The bottom guard plate assembly according to claim 1, characterized in that: In the direction from the front to the rear of the vehicle, the height of the front end of the air guide strip in the up-down direction gradually increases.

5. The bottom guard plate assembly according to claim 1, characterized in that: Each of the air guide strips is snap-connected to the bottom guard plate body.

6. The bottom guard plate assembly according to claim 5, characterized in that: Also includes: A fixing plate is arranged on the lower side of the bottom guard plate body and is connected with the bottom guard plate body by snapping, and the air guide strip is fixed on the lower side surface of the fixing plate.

7. The bottom guard plate assembly according to claim 6, characterized in that: A buckle is formed on one of the fixing plate and the bottom guard plate body, and a clamping hole is formed on the other, and the buckle is fitted in the clamping hole.

8. The bottom guard plate assembly according to claim 6, characterized in that: A concave limiting groove is formed on the lower side surface of the bottom guard plate body, and the fixing plate is arranged in the limiting groove.

9. A vehicle, characterized in that: Comprising a bottom guard plate assembly according to any one of claims 1-8.