Bottom protection plate and vehicle

Abstract

The embodiment of the utility model provides a bottom protection plate and a vehicle, and belongs to the technical field of vehicle accessories. The bottom protection plate comprises a bottom protection plate body and a flow guide part arranged on the bottom protection plate body, an inserting part is arranged on the peripheral side of the bottom protection plate body and used for being connected with a chassis of the vehicle in an inserted mode, and the flow guide part is located on the surface of the side, away from the chassis, of the bottom protection plate body, is in a streamline shape and protrudes relative to the surface of the chassis. When the airflow passes through the surface of the base plate, the airflow is dispersed. When the vehicle runs, the flow guide part can disperse airflow through the streamline structure of the flow guide part when the airflow flows through the bottom protection plate, so that the upward pressure of the airflow on the vehicle is reduced, the wind resistance of the airflow on the bottom protection plate is reduced, and then the stability of the vehicle during running is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle accessories, and in particular to an underbody guard plate and a vehicle. Background Art

[0002] The underbody guard of a vehicle is a protective device installed on the chassis of the vehicle. It can protect the chassis from impact and corrosion by foreign objects, improve the aerodynamic performance of the vehicle, and enhance driving stability.

[0003] The underbody guard of existing vehicles is a flat plate structure with an overall smooth transition to adapt to the vehicle structure. The underbody guard covers the chassis of the vehicle to prevent airflow from flowing back into the interior of the vehicle while the vehicle is driving.

[0004] However, when the airflow passes through the underbody guard, it will generate upward pressure on the vehicle, resulting in greater wind resistance of the underbody guard and poor driving stability of the vehicle. Utility Model Content

[0005] The embodiments of the present application provide an underbody guard and a vehicle, which are used to reduce the wind resistance of the underbody guard and improve the driving stability of the vehicle.

[0006] In the first aspect, an embodiment of the present application provides a bottom guard plate, comprising a bottom guard plate body and a guide portion arranged on the bottom guard plate body, a plug-in portion being provided on the peripheral side of the bottom guard plate body, the plug-in portion being used to connect with the chassis of the vehicle, the guide portion being located on a side surface of the bottom guard plate body facing away from the chassis, the guide portion being streamlined, and the guide portion being raised relative to the surface to disperse the airflow when the airflow passes through the surface.

[0007] In a possible embodiment, the bottom guard plate provided in the embodiment of the present application, the guide portion includes a guide body, the extension direction of the guide body is perpendicular to the extension direction of the bottom guard plate body, and the extension direction of the guide body is consistent with the length direction of the vehicle.

[0008] In a possible embodiment, in the bottom guard plate provided in an embodiment of the present application, at least one of the width and height of the guide body gradually and smoothly increases and then gradually and smoothly decreases along the extension direction of the guide body, wherein the width direction of the guide body is consistent with the extension direction of the bottom guard plate body.

[0009] In a possible embodiment, the bottom guard plate provided in the embodiment of the present application has a length of the guide body of 175mm-185mm, a width of the guide body of 30mm-40mm, and a height of the guide body of 15mm-20mm, wherein the length direction of the guide body is consistent with the extension direction of the guide body.

[0010] In a possible implementation, in the bottom guard plate provided in the embodiment of the present application, the guide body is smoothly transitionally connected to the surface.

[0011] In a possible embodiment, the bottom guard plate provided in the embodiment of the present application, the guide portion also includes two sub-guide portions arranged on the guide body, and the two sub-guide portions are respectively located on opposite sides of the extension direction of the guide body, and the volume of the sub-guide portion is smaller than the volume of the guide body.

[0012] In a possible implementation, the bottom guard plate provided in the embodiment of the present application has a plurality of guide portions, and the plurality of guide portions are spaced apart and distributed in at least one row along the extension direction of the bottom guard plate body.

[0013] In a possible implementation, in the bottom guard plate provided in the embodiment of the present application, the plurality of guide portions are distributed in at least two rows, and the guide portions in two adjacent rows are staggered and spaced apart.

[0014] The volume of the air guide parts in each row is consistent, and the volume of the air guide parts between each row decreases successively along an extension direction perpendicular to the bottom guard plate body.

[0015] In a possible implementation, in the bottom guard plate provided in the embodiment of the present application, the bottom guard plate body and the guide portion are integrally formed.

[0016] In a second aspect, an embodiment of the present application provides a vehicle, comprising a vehicle body and any of the above-mentioned underbody guard plates, wherein the underbody guard plate is connected to the vehicle body.

[0017] The underbody guard and vehicle provided in the embodiments of the present application include an underbody guard body and a deflector. The deflector is provided on the underbody guard, forming a streamlined shape that is raised relative to the underbody guard. When the vehicle is in motion, the deflector utilizes its streamlined structure to disperse airflow as it passes through the underbody guard, thereby reducing upward pressure on the vehicle and wind resistance on the underbody guard, thereby enhancing vehicle stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 A schematic diagram of the structure of the bottom guard plate provided in an embodiment of the present application;

[0020] Figure 2 for Figure 1 Structural diagram of the midsole guard from another perspective Figure 1 ;

[0021] Figure 3 for Figure 1 A structural diagram of the midsole guard from another perspective;

[0022] Figure 4 for Figure 3 Cross-sectional view along the AA axis;

[0023] Figure 5 for Figure 2 A partial enlargement of point B in the middle Figure 1 ;

[0024] Figure 6 for Figure 2 A partial enlargement of point B in the middle Figure 2 ;

[0025] Figure 7 for Figure 3 A partial enlargement of point C in the middle Figure 1 ;

[0026] Figure 8 for Figure 3 A partial enlargement of point C in the middle Figure 2 ;

[0027] Figure 9 for Figure 1 Structural diagram of the midsole guard from another perspective Figure 2 ;

[0028] Figure 10 for Figure 1 Structural diagram of the midsole guard from another perspective Figure 3 .

[0029] Description of reference numerals:

[0030] 100-Bottom guard body;

[0031] 110-surface;

[0032] 200- diversion part;

[0033] 210- diversion body;

[0034] 220- sub-guiding part;

[0035] 300-Connection part.

[0036] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. The following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0038] As described in the background technology, the underbody guard plate of the vehicle is a flat structure with an overall smooth transition to adapt to the vehicle structure. The underbody guard plate can cover the chassis of the vehicle, which can prevent flying stones and gravel from hitting the chassis of the vehicle during driving, and can also prevent air flow from flowing back into the interior of the vehicle during driving.

[0039] However, when the vehicle is driving, the airflow passing through the underbody guard plate will generate pressure to lift the vehicle upward, resulting in greater wind resistance of the underbody guard plate and poor driving stability of the vehicle.

[0040] To overcome the shortcomings of the prior art, the present invention provides an underbody and vehicle. The underbody includes an underbody body and a deflector. The deflector is provided on the underbody, forming a streamlined shape that bulges relative to the underbody. When the vehicle is in motion, the deflector utilizes its streamlined structure to disperse airflow as it passes through the underbody, reducing upward pressure on the vehicle and wind resistance on the underbody, thereby enhancing vehicle stability.

[0041] The content of the utility model will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the content of the utility model more clearly and in detail.

[0042] Reference Figures 1 to 4 As shown, an embodiment of the present application provides a bottom guard plate, a bottom guard plate body 100 and a guide portion 200 arranged on the bottom guard plate body 100, a plug-in portion 300 is provided on the peripheral side of the bottom guard plate body 100, the plug-in portion 300 is used to plug with the chassis of the vehicle, the guide portion 200 is located on the side surface 110 of the bottom guard plate body 100 away from the chassis, the guide portion 200 is streamlined, and the guide portion 200 is raised relative to the surface 110 to disperse the airflow when the airflow passes through the surface 110.

[0043] It should be noted that Figures 1 to 10 The X direction, Y direction, and Z direction shown are perpendicular to each other in three-dimensional space.

[0044] It is understood that the underbody guard can be divided into a front underbody guard, a middle underbody guard, and a rear underbody guard according to the installation position relative to the vehicle. The front underbody guard is located at the front of the vehicle chassis, the middle underbody guard is located in the middle of the vehicle chassis, and the rear underbody guard is located at the rear of the vehicle chassis. The structures of the three are adaptively adjusted according to the structure of the vehicle to adapt to the vehicle chassis. The front underbody guard, the middle underbody guard, and the rear underbody guard can be three independent components or can be integrated into one component. In this application, the rear underbody guard is taken as an example to illustrate the underbody guard provided in the embodiment of this application.

[0045] Therefore, when setting the bottom guard plate, in order to facilitate the coordinated installation of the front bottom guard plate, the middle bottom guard plate and the rear bottom guard plate, the front bottom guard plate, the middle bottom guard plate and the rear bottom guard plate are all extended along the width direction of the vehicle, that is, the extension direction of the bottom guard plate is perpendicular to the forward direction of the vehicle.

[0046] The bottom guard plate provided in the embodiment of the present application includes a bottom guard plate body 100 and a guide portion 200. A plurality of plug-in portions 300 are arranged at intervals on the circumferential side of the bottom guard plate body 100. The plug-in portions 300 can be used to plug the bottom guard plate body 100 into the chassis of the vehicle or other bottom guard plate structures to facilitate the positioning and installation of the bottom guard plate, and then the bottom guard plate can be fixed by fasteners.

[0047] The air guide portion 200 is arranged on the bottom guard plate body 100 and is located on the side of the bottom guard plate relatively away from the chassis of the vehicle along the Z direction. That is, in a specific implementation, the air guide portion 200 is located on the side of the bottom guard plate facing the ground, so that the air guide portion 200 can be arranged between the chassis of the vehicle and the road surface on which the vehicle is traveling, thereby playing a diversion role on the air flowing between the chassis of the vehicle and the road surface on which the vehicle is traveling.

[0048] The air guide 200 is raised along the Z direction relative to the side surface 110 of the bottom guard plate body 100 that is away from the vehicle body, and the air guide 200 is configured to be streamlined. It can be understood that a streamlined structure is a design form that mimics the natural flow path of a fluid (such as water or air) in motion. Components with streamlined structures can reduce the surface area of direct collision between the fluid and the component itself, thereby reducing the friction between the fluid and the component itself, and reducing the possibility of turbulence and eddy currents generated by the fluid on the surface 110 of the component, thereby reducing the resistance of the fluid to the streamlined structure. Therefore, configuring the air guide 200 as a streamlined structure can reduce the resistance of the air guide 200 and the bottom guard plate, thereby improving the movement efficiency of the vehicle.

[0049] In addition, the guide part 200 is raised relative to the bottom guard plate body 100, which can further increase the contact area between the guide part 200 and the airflow, and is beneficial for the guide part 200 to use its own streamlined structure to disperse the airflow flowing through the guide part 200, thereby improving the drag reduction effect of the guide part 200 while reducing the pressure of the airflow acting on the bottom of the vehicle to lift the vehicle upward.

[0050] Therefore, the underbody guard provided in the embodiment of the present application includes an underbody guard body 100 and an air guide 200. By providing the air guide 200 on the underbody guard, the air guide 200 is streamlined and protrudes relative to the underbody guard. When the vehicle is in motion, the air guide 200 utilizes its streamlined structure to disperse the airflow as it passes through the underbody guard, thereby reducing the upward pressure on the vehicle and the wind resistance of the airflow on the underbody guard, thereby improving the vehicle's stability during driving.

[0051] In some embodiments, reference Figures 1 to 5 As shown, the air guide portion 200 includes an air guide body 210 , the extension direction of the air guide body 210 is perpendicular to the extension direction of the bottom guard plate body 100 , and the extension direction of the air guide body 210 is consistent with the length direction of the vehicle.

[0052] It can be understood that the forward direction of the vehicle is generally the longitudinal direction of the vehicle, and the bottom guard plate extends along the width direction (X direction) of the vehicle and is connected to the vehicle. Therefore, the bottom guard plate body 100 is perpendicular to the forward direction (Y direction) of the vehicle.

[0053] The extension direction (Y direction) of the guide body 210 is consistent with the forward direction of the vehicle, that is, the extension direction of the guide body 210 is consistent with the length direction of the vehicle. Such a setting can reduce the cross-sectional area of the guide body 210 in the forward direction of the vehicle, that is, the cross-sectional area of the guide body 210 in the flow direction of the airflow when the vehicle is driving is smaller, thereby reducing the collision area between the airflow and the guide body 210, reducing the resistance of the guide body 210 to the airflow, and improving the resistance reduction effect of the guide part 200.

[0054] Among them, reference Figures 1 to 5 ,and Figure 7 As shown, at least one of the width D and the height H of the guide body 210 gradually and smoothly increases and then gradually and smoothly decreases along the extension direction of the guide body 210 , wherein the width direction of the guide body 210 is consistent with the extension direction of the bottom guard plate body 100 .

[0055] It can be understood that by setting the width D of the guide body 210 along the X direction and the height H along the Z direction to gradually increase and then decrease along the extension direction, the guide body 210 can have the aforementioned streamlined structure, ensuring the drag reduction effect of the guide body 210.

[0056] In some embodiments, the guide body 210 may be configured such that only the width D thereof gradually increases and then decreases along the extension direction, or only the height H thereof gradually increases and then decreases along the extension direction. Figure 4 、 Figure 5 and Figure 7As shown, the width D and the height H of the guide body 210 are both gradually increased and then gradually decreased along the extension direction, and the present application does not impose any limitation on this.

[0057] In addition, in order to further enhance the resistance reduction and diversion effects of the flow guide body 210, the peak position of the width D and the peak position of the height H of the flow guide body 210 can be set to be located at the same point on the length L of the flow guide body 210, and specifically, they can be located at the midpoint of the length L of the flow guide body 210, so that the sharpness of both ends of the extension direction of the flow guide body 210 is consistent.

[0058] Alternatively, the peak position of the width D and the peak position of the height H of the guide body 210 can be set to be offset toward the forward direction of the vehicle relative to the midpoint of the length L of the guide body 210, so that the sharpness of the end of the guide body 210 toward the head of the vehicle is less than the sharpness of the end of the guide body 210 toward the rear of the vehicle, that is, the end of the guide body 210 toward the head of the vehicle is more rounded and blunt, and this application does not impose any restrictions on this.

[0059] In specific implementation, refer to Figure 5 and Figure 7 As shown, along the extension direction of the guide body 210, the length L of the guide body 210 is 175mm-185mm, the width D of the guide body 210 is 30mm-40mm, and the height H of the guide body 210 is 15mm-20mm, wherein the length direction of the guide body 210 is consistent with the extension direction of the guide body 210.

[0060] By setting the size of the flow guide body 210 in this way, the structure of the flow guide body 210 can be made into a streamlined structure in the shape of an elongated fish fin (water drop), with a more beautiful shape and a better resistance reduction and diversion effect.

[0061] For example, the length L of the guide body 210 along the Y direction can be 175 mm, 178 mm, 180 mm, 182 mm, or 185 mm, and in this embodiment, 180 mm is selected. The width D of the guide body 210 along the X direction can be 30 mm, 32 mm, 35 mm, 38 mm, or 40 mm, and in this embodiment, 35 mm is selected. The height H of the guide body 210 along the Z direction can be 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm, and in this embodiment, 18 mm is selected. It is understood that the specific dimensions of the guide body 210 can be adjusted according to the dimensional structure of the bottom guard plate body 100, and this application does not impose any restrictions on this.

[0062] In some embodiments, reference Figure 5 and Figure 7 As shown, the flow guide body 210 is connected to the surface 110 in a smooth transition.

[0063] It can be understood that by smoothly transitioning the flow guide body 210 and the surface 110 of the bottom guard plate body 100 , the bottom guard plate structure can be smoother and the drag reduction effect can be better.

[0064] Furthermore, in some embodiments, reference Figures 1 to 4 , Figure 6 besides Figure 8 As shown, the guide portion 200 further includes two sub-guide portions 220 provided on the guide body 210 . The two sub-guide portions 220 are located on opposite sides of the extension direction of the guide body 210 , and the volume of the sub-guide portions 220 is smaller than that of the guide body 210 .

[0065] It can be understood that two sub-guide portions 220 with a volume smaller than the guide body 210 are provided, and the two sub-guide portions 220 are respectively located on opposite sides of the guide body 210, which can further increase the surface area on both sides of the guide portion 200, enhance the diversion effect of the airflow, and thereby reduce the airflow pressure acting on the bottom of the vehicle to lift the vehicle.

[0066] Specifically, the structure of the sub-guide portion 220 can be set to a streamlined structure similar to the structure of the guide body 210, and the various dimensions of the sub-guide portion 220 are smaller than the dimensions of the guide body 210, so as to ensure that the guide body 210 is the main body and the sub-guide portion 220 is auxiliary. The sub-guide portion 220 cooperates with the guide body 210 to effectively reduce resistance and divert flow.

[0067] For example, the sub-guiding portion 220 may be as follows Figure 6 and Figure 8 As shown in the figure, it is directly arranged on the two opposite sides of the guide body 210. In other embodiments, the sub-guide part 220 can also be arranged at the bottom of the two opposite sides of the guide body 210, and is distributed in a "mountain" shape. This application does not limit this.

[0068] And, in some embodiments, reference Figure 1 and Figure 2 As shown, a plurality of air guide portions 200 are provided, and the plurality of air guide portions 200 are spaced apart and distributed in at least one row along the extension direction of the bottom guard plate body 100 .

[0069] It can be understood that multiple guide parts 200 are arranged in at least one row along the extension direction of the bottom guard plate body 100. By increasing the number of guide parts 200, the bottom guard plate can more fully and efficiently divert the airflow and reduce wind resistance.

[0070] Among them, reference Figure 9 and Figure 10 As shown, the plurality of guide portions 200 are distributed in at least two rows, and the guide portions 200 in two adjacent rows are staggered and spaced apart from each other;

[0071] The volume of the air guide parts 200 in each row is consistent, and the volume of the air guide parts 200 between each row decreases sequentially along the extending direction perpendicular to the bottom guard plate body 100 .

[0072] It can be understood that at least two rows of guide parts 200 are provided, and the guide parts 200 in two adjacent rows are staggered with each other, so that the airflow can be further diverted by the guide parts 200 in the front row after being diverted, and then further diverted by the guide parts 200 in the rear row, which can effectively ensure the diversion and resistance reduction effect of the guide parts 200 on the airflow.

[0073] Among them, the volume of a row of guide parts 200 located on the front side of the bottom guard plate body 100 in the vehicle's forward direction is larger than that of a row of guide parts 200 on the rear side, which can make the bottom guard plate structure more reasonable and compact, and reduce the overall space occupied by the guide parts 200 on the bottom guard plate body 100.

[0074] In specific implementation, the two rows of guide parts 200 can be as follows Figure 9 As shown in FIG, the guide portions 200 of the second row are all located between two adjacent guide portions 200 in the first row. Figure 10 As shown in the figure, the second row of guide parts 200 are arranged corresponding to the first row of guide parts 200, and are respectively located on two opposite sides of the rear of the corresponding guide parts 200 in the first row. This application does not impose any limitation on this.

[0075] In addition, the bottom guard plate body 100 and the air guide portion 200 are integrally formed.

[0076] It is understandable that the bottom guard plate body 100 and the guide portion 200 are integrally formed, specifically, can be integrally injection molded, thereby eliminating the need for additional connecting parts, making the bottom guard plate structure simpler, more compact, and more stable.

[0077] An embodiment of the present application also provides a vehicle, comprising a vehicle body and the bottom guard plate of any of the above embodiments, wherein the bottom guard plate is connected to the vehicle body.

[0078] The bottom guard plate has been described in detail in the above embodiments and will not be repeated here.

[0079] Therefore, the vehicle provided in the embodiments of the present application is provided with an underbody guard, which includes an underbody guard body 100 and an air guide 200. The air guide 200 is provided on the underbody guard, forming a streamlined shape that is raised relative to the underbody guard. When the vehicle is in motion, the air guide 200 utilizes its streamlined structure to disperse the airflow as it passes through the underbody guard, thereby reducing the upward pressure on the vehicle and the wind resistance of the airflow on the underbody guard, thereby improving the vehicle's stability during driving.

[0080] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0081] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0082] It should be readily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0083] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature to other elements or features as depicted in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90° or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bottom guard plate, characterized in that: The invention comprises a bottom guard plate body (100) and an air guide portion (200) provided on the bottom guard plate body (100); a plug-in portion (300) is provided on the peripheral side of the bottom guard plate body (100); the plug-in portion (300) is used for plugging with the chassis of a vehicle; the air guide portion (200) is located on a side surface (110) of the bottom guard plate body (100) facing away from the chassis; the air guide portion (200) is streamlined and protrudes relative to the surface (110) so as to disperse the airflow when the airflow passes through the surface (110).

2. The bottom guard plate according to claim 1, characterized in that The air guide portion (200) comprises an air guide body (210), the extension direction of the air guide body (210) being perpendicular to the extension direction of the bottom guard plate body (100), and the extension direction of the air guide body (210) being consistent with the length direction of the vehicle.

3. The bottom guard plate according to claim 2, characterized in that: At least one of the width and height of the guide body (210) increases gradually and smoothly and then decreases gradually and smoothly along the extension direction of the guide body (210), wherein the width direction of the guide body (210) is consistent with the extension direction of the bottom guard plate body (100).

4. The bottom guard plate according to claim 3, characterized in that: The length of the flow-guiding body (210) is 175 mm to 185 mm, the width of the flow-guiding body (210) is 30 mm to 40 mm, and the height of the flow-guiding body (210) is 15 mm to 20 mm, wherein the length direction of the flow-guiding body (210) is consistent with the extension direction of the flow-guiding body (210).

5. The bottom guard plate according to claim 2, characterized in that: The flow-guiding body (210) is connected to the surface (110) in a smooth transition.

6. The bottom guard plate according to any one of claims 2 to 5, characterized in that: The guide portion (200) further comprises two sub-guide portions (220) arranged on the guide body (210), the two sub-guide portions (220) being located on opposite sides of the extension direction of the guide body (210), and the volume of the sub-guide portions (220) being smaller than the volume of the guide body (210).

7. The bottom guard plate according to any one of claims 1 to 5, characterized in that: A plurality of the guide portions (200) are provided, and the plurality of guide portions (200) are spaced apart and distributed in at least one row along the extension direction of the bottom guard plate body (100).

8. The bottom guard plate according to claim 7, characterized in that: The plurality of guide portions (200) are distributed in at least two rows, and the guide portions (200) in two adjacent rows are arranged in a staggered manner; The volume of the guide portions (200) in each row is consistent, and the volume of the guide portions (200) between each row decreases in sequence along an extension direction perpendicular to the bottom guard plate body (100).

9. The bottom guard plate according to any one of claims 1 to 5, characterized in that: The bottom guard plate body (100) and the air guide portion (200) are integrally formed.

10. A vehicle, characterized in that: The invention comprises a vehicle body and the bottom guard plate according to any one of claims 1 to 9, wherein the bottom guard plate is connected to the vehicle body.

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