Underbody panel and vehicle

Abstract

An underbody panel (1), comprising a panel body (10), the panel body (10) comprising a connecting side (101) and an exposed side (102) arranged in the thickness direction thereof, and the connecting side (101) of the panel body (10) being used for connecting to a vehicle; the panel body (10) comprises a protective area (11) and a connecting area (12), the protective area (11) comprising a first sub-area (111) and a second sub-area (112), and the junction of the first sub-area (111) and the second sub-area (112) protruding in the direction facing away from the connecting side (101); when the vehicle is placed on a plane and the panel body (10) is mounted at the bottom of the vehicle, the second sub-area (112) is located on the side of the first sub-area (111) facing the rear of the vehicle, a first included angle with the opening facing the rear is formed between the first sub-area (111) and the plane, and a second included angle with the opening facing the rear is formed between the second sub-area (112) and the plane, the first included angle being smaller than the second included angle. The underbody panel can effectively reduce wind resistance, thus improving the performance of vehicles. Further comprised is a vehicle.

Description

Underbody guard and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202322151566.1 and application date of August 10, 2023, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of vehicles, and in particular to an underbody guard plate and a vehicle. Background Art

[0004] With the development of vehicle technology, users have higher and higher requirements for vehicle performance. The impact of wind resistance on the overall performance of the vehicle has attracted more and more attention. Reducing wind resistance has a significant effect on improving vehicle performance. In traditional models, the wind resistance of the vehicle is relatively large, which is not conducive to improving vehicle performance.

[0005] Summary of the Invention

[0006] An embodiment of the present application provides an underbody guard and a vehicle. The underbody guard provided by the present application can effectively reduce wind resistance, thereby improving the performance of the vehicle.

[0007] An embodiment of a first aspect of the present application provides an underbody guard plate, comprising a guard plate body, wherein the guard plate body comprises a connection side and an exposed side arranged along its thickness direction, wherein the connection side of the guard plate body is used to connect to a vehicle, and wherein the guard plate body comprises:

[0008] a protection zone, comprising a first partition and a second partition, wherein a junction between the first partition and the second partition protrudes in a direction away from the connection side;

[0009] Wherein, when the vehicle is placed on a plane and the guard plate body is installed on the bottom of the vehicle, the second partition is located on the side of the first partition facing the rear of the vehicle, and a first angle is formed between the first partition and the plane with the opening facing the rear, and a second angle is formed between the second partition and the plane with the opening facing the rear, and the first angle is smaller than the second angle.

[0010] According to an implementation of the first aspect of the present application, the first angle is a, 2°≤a≤3°, and the second angle is A, 14°≤A≤15°.

[0011] According to any of the foregoing embodiments of the first aspect of the present application, the thickness of the first partition between a side facing the connection side and a side facing away from the connection side gradually increases from an end away from the second partition to an end close to the second partition, and the thickness of the second partition between a side facing the connection side and a side facing away from the connection side gradually increases from an end away from the first partition to an end close to the first partition, and the maximum thickness at the junction of the first partition and the second partition is H, 30 mm ≤ H ≤ 40 mm;

[0012] Along the arrangement direction of the first partition and the second partition, the length of the first partition is L, 400 mm ≤ L ≤ 500 mm;

[0013] The maximum distance between the first partition and the plane is D, 150 mm ≤ D ≤ 160 mm.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, it also includes a connection area, which is connected to the peripheral side of the protection area and is used to connect and fix the protection area to the vehicle; the connection area includes a first connection area and a second connection area, the first connection area is located on the side of the first partition away from the second partition, and the second connection area is located on both sides of the protection area along the arrangement direction of the first partition and the second partition.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, it also includes a drainage hole, which is formed in at least one of the protection area and the connection area, and the drainage hole passes through the guard plate body along the thickness direction of the guard plate body.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the drainage hole includes a first drainage hole formed in the first partition, and the shape of the first drainage hole is circular; and / or, the drainage hole includes a second drainage hole formed in the second partition, and the shape of the second drainage hole is a rounded rectangle.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the drainage hole also includes a third drainage hole formed in the second connection area, the third drainage hole is circular in shape, the second connection area includes an auxiliary reinforcement groove, and at least part of the third drainage hole is located in the auxiliary reinforcement groove.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the second partition is formed with a guide structure, the guide structure including a guide groove and a reinforcing rib, the reinforcing rib extends along the arrangement direction of the first partition and the second partition, the reinforcing rib is located between adjacent guide grooves, and the guide groove includes a first opening toward the exposed side and a second opening toward the tail.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the second drainage hole is provided on a side of the guide groove close to the first partition, each of the guide grooves includes at least one drainage hole group, and the drainage hole group includes a plurality of second drainage holes arranged along a boundary line between the first partition and the second partition;

[0020] When there are multiple drainage hole groups, the multiple drainage hole groups are arranged along the arrangement direction of the first partition and the second partition.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the first partition includes a reinforcement groove, the shape of the reinforcement groove is a rounded rectangle, the reinforcement groove extends along the arrangement direction of the first partition and the second partition, the first drainage hole is located in the reinforcement groove, and each of the reinforcement grooves includes a plurality of first drainage holes arranged along the arrangement direction of the first partition and the second partition.

[0022] An embodiment of the second aspect of the present application further provides a vehicle comprising any bottom guard plate provided by the first aspect of the present application.

[0023] In the bottom guard plate provided by the present application, the guard plate body includes a protection zone. The protection zone includes a first partition and a second partition. The junction of the first partition and the second partition protrudes in the direction away from the connection side, so that the side of the protection zone facing the exposed side can be turned at the junction of the first partition and the second partition, so as to improve the vehicle. Among them, when the vehicle is placed on a plane and the guard plate body is installed on the bottom of the vehicle, the second partition is located on the side of the first partition facing the tail, and the first partition and the plane form a first angle with the opening facing the tail, and the second partition and the plane form a second angle with the opening facing the tail. The first angle is smaller than the second angle, so that the maximum vertical distance between the first partition and the plane is smaller than the maximum vertical distance between the second partition and the plane. By making the distance between the first partition and the plane in the bottom guard plate lower, and the high-speed undercarriage airflow flowing from the vehicle chassis side flows along the first partition at a smaller angle to the plane toward the tail, the chassis side airflow can be accelerated so that the airflow can impact the tail airflow to reduce the vehicle tail vortex, thereby reducing the air resistance of the vehicle. This helps to improve the performance of the vehicle, such as improving the vehicle's cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] FIG1 is a side view of a bottom guard plate provided in an embodiment of the present application;

[0026] FIG2 is a reference diagram of a bottom guard plate in use provided by an embodiment of the present application;

[0027] FIG3 is a schematic structural diagram of an exposed side of a bottom guard plate provided in an embodiment of the present application;

[0028] FIG4 is a schematic structural diagram of a connection side of a bottom guard plate provided in an embodiment of the present application;

[0029] FIG5 is a schematic diagram of a partial structure of a bottom guard plate provided in an embodiment of the present application;

[0030] FIG6 is a schematic structural diagram of a vehicle provided in an embodiment of the present application.

[0031] In the attached figure:

[0032] 1- bottom guard plate; 10- guard plate body; 101- connection side; 102- exposed side; 11- protection area; 111- first partition; 112- second partition; 12- connection area; 121- first connection area; 122- second connection area; a- first angle; A- second angle; 13- first drainage hole; 14- second drainage hole; 15- guide structure; 151- guide groove; 152- reinforcement rib; 16- drainage hole group; 17- reinforcement groove; 18- third drainage hole; 19- auxiliary reinforcement groove; 20- connection hole; 2- vehicle. DETAILED DESCRIPTION

[0033] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating the examples of the present application.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0035] The inventors discovered that existing vehicle underbody guards are designed to be tilted to the ground. These flat-plates, with a consistent angle from the rear end to the end away from the rear, are designed to reduce the vehicle's bottoming and protect it. However, this design creates significant wind resistance, hindering vehicle performance. Based on this research, the inventors have developed a vehicle with an underbody guard to reduce wind resistance and improve vehicle performance.

[0036] In order to better understand the present application, the bottom guard plate and the vehicle according to the embodiment of the present application are described in detail below with reference to Figures 1 to 6.

[0037] Referring to Figures 1 to 4, an embodiment of the present application provides a bottom guard plate 1, comprising a guard plate body 10, wherein the guard plate body 10 comprises a connection side 101 and an exposed side 102 arranged along its own thickness direction, wherein the connection side 101 of the guard plate body 10 is used to connect to the vehicle, and the guard plate body 10 comprises a protection area 11. The protection area 11 comprises a first partition 111 and a second partition 112, wherein the junction of the first partition 111 and the second partition 112 protrudes in a direction away from the connection side 101. When the vehicle is placed on a plane and the guard plate body 10 is installed on the bottom of the vehicle, the second partition 112 is located on the side of the first partition 111 facing the rear, and a first angle a is formed between the first partition 111 and the plane with the opening facing the rear, and a second angle A is formed between the second partition 112 and the plane with the opening facing the rear, and the first angle a is smaller than the second angle A.

[0038] The bottom guard plate 1 provided in the present application includes a guard plate body 10, and the guard plate body 10 includes a connecting side 101 and an exposed side 102. The connecting side 101 and the exposed side 102 are arranged along the thickness direction of the guard plate body 10. The connecting side 101 is used to connect to the bottom of the vehicle, that is, when the bottom guard plate 1 is installed on the bottom of the vehicle, the connecting side 101 is located on the side of the guard plate body 10 facing the bottom of the vehicle, and the exposed side 102 is located on the side of the guard plate body 10 away from the bottom of the vehicle, that is, it is exposed to the outside and can come into contact with the airflow under the vehicle. The bottom guard plate 1 is used to protect the bottom of the vehicle. The vehicle includes components such as a rear bumper, a rear subframe, and two rear wheel covers. The bottom of the vehicle includes a rear bottom area. The rear bumper, the rear subframe, and the two rear wheel covers are surrounded by the rear bottom area. The bottom guard plate 1 provided in the present application is used to connect to the rear bottom area and protect the rear bottom area.

[0039] In the underbody guard plate 1 provided herein, the guard plate body 10 includes a protective area 11. The protective area 11 includes a first partition 111 and a second partition 112. The junction of the first partition 111 and the second partition 112 protrudes away from the connection side 101, so that the side of the protective area 11 facing the exposed side 102 is bent at the junction of the first partition 111 and the second partition 112, thereby improving the airflow under the vehicle. When the vehicle is placed on a plane and the guard plate body 10 is installed on the bottom of the vehicle, the second partition 112 is located on the side of the first partition 111 facing the rear, and the first partition 111 forms a first angle a with the plane with the opening facing the rear, and the second partition 112 forms a second angle A with the plane with the opening facing the rear. The first angle a is smaller than the second angle A, so that the maximum vertical distance between the first partition 111 and the plane is smaller than the maximum vertical distance between the second partition 112 and the plane. This can reduce the distance between the first partition 111 and the plane in the bottom guard plate 1, and the high-speed undercarriage airflow flowing from the vehicle chassis side flows toward the rear along the first partition 111 at a smaller angle with the plane, thereby accelerating the chassis-side airflow so that the airflow can impact the tail airflow, thereby reducing the vehicle's tail vortex and thus reducing the vehicle's air resistance. This helps improve vehicle performance, such as improving the vehicle's cruising range.

[0040] Specifically, the above-mentioned “plane” may be the ground, or other plane in contact with the four wheels of the vehicle, and this application does not make any special limitation.

[0041] Compared with the prior art, the above-mentioned embodiment of the present application reduces the angle between a part of the area (the first partition 111) in the bottom guard plate 1 and the plane on which the vehicle is placed, so that the airflow between the vehicle and the plane can flow toward the rear of the vehicle at a higher speed to impact the rear airflow, further enhancing the effect of reducing the vehicle's tail vortex.

[0042] Specifically, the first partition 111 smoothly transitions from one end away from the second partition 112 to the boundary between the first partition 111 and the second partition 112 , and the second partition 112 smoothly transitions from one end away from the first partition 111 to the boundary between the first partition 111 and the second partition 112 .

[0043] In a feasible implementation, as shown in FIG2 , the first angle is a, 2°≤a≤3°, and the second angle is A, 14°≤A≤15°.

[0044] In the above embodiment, the degree of the first angle a can be 2°, 2.5°, 2.8° or 3°, and this application does not make any special limitations. On the one hand, it can realize the transition between the second partition 112 and the bottom plane area of ​​the vehicle. On the other hand, the angle is relatively small, which can increase the speed of the airflow flowing from the side of the vehicle chassis to the tail, so that the airflow can impact the tail airflow to reduce the vehicle tail vortex and reduce wind resistance.

[0045] In the above embodiment, the degree of the second angle A can be 14°, 14.5°, 14.8° or 15°, and this application does not make any special limitations. The second angle A is set to be greater than the first angle a, so that the rear end of the vehicle can be protected under road conditions such as climbing, descending, and bumpy, thereby improving the phenomenon of the rear end of the vehicle bottoming out, thereby improving the reliability of the vehicle and reducing maintenance costs.

[0046] In a feasible embodiment, as shown in Figure 1, the thickness of the first partition 111 between the side facing the connection side 101 and the side away from the connection side 101 gradually increases from the end far away from the second partition 112 to the end close to the second partition 112, and the thickness of the second partition 112 between the side facing the connection side 101 and the side away from the connection side 101 gradually increases from the end far away from the first partition 111 to the end close to the first partition 111. The maximum thickness at the junction of the first partition 111 and the second partition 112 is H, 30mm≤H≤40mm.

[0047] In the above embodiment, it can be ensured that the first partition 111 and the second partition 112 are on the same slope facing the connection side 101, that is, the bottom structure of the original vehicle is not changed, and the air resistance of the vehicle is reduced by only changing the bottom guard plate 1, which helps to reduce the cost of the vehicle.

[0048] In a feasible implementation, as shown in FIG1 , along the arrangement direction of the first partition 111 and the second partition 112 , the length of the first partition 111 is L, and 400 mm ≤ L ≤ 500 mm.

[0049] In the above embodiment, the length of the first section 111 can be 400 mm, 410 mm, 421 mm, 435 mm, 465 mm, 480 mm, 500 mm, etc., and is not specifically limited in this application. By designing the first section 111 within the above length range, the airflow under the vehicle can flow toward the rear at a relatively small angle to the plane within this length range, thereby ensuring that the first section 111 effectively improves the vehicle's wind resistance.

[0050] In a feasible implementation, as shown in FIG2 , the maximum distance between the first partition 111 and the plane is D, and 150 mm ≤ D ≤ 160 mm.

[0051] In the above embodiment, the maximum distance between the first partition 111 and the plane may be: 150 mm, 153 mm, 155 mm, 158 mm, 159 mm, 160 mm, etc., which is not particularly limited in this application.

[0052] In the above embodiment, by limiting the maximum distance between the first partition 111 and the plane within the above range, it is possible to ensure that the distance between the bottom of the vehicle and the plane is small, thereby accelerating the airflow on the chassis side so that the airflow can impact the tail airflow to reduce the vehicle tail vortex, thereby reducing the air resistance of the vehicle.

[0053] In a feasible embodiment, as shown in FIG3 , a connection area 12 is further included. The connection area 12 is connected to the peripheral side of the protection area 11 and is used to connect and fix the protection area 11 to the vehicle.

[0054] In a feasible embodiment, as shown in Figure 3, the connection area 12 includes a first connection area 121 and a second connection area 122, the first connection area 121 is located on the side of the first partition 111 away from the second partition 112, and the second connection area 122 is located on both sides of the protection area 11 along the arrangement direction of the first partition 111 and the second partition 112.

[0055] In the above embodiment, the first and second connection areas 121, 122 are each provided with connection holes 20 for connection to the vehicle. The first connection area 121 can be connected to the rear subframe, while the second connection area 122 can be used to connect to the two rear wheelhouses. The end of the second subarea 112, closer to the rear, i.e., farther from the first subarea 111, is also provided with a connection hole 20 for connection to the rear bumper. The end of the first subarea 111, further away from the rear, i.e., farther from the second subarea 112, is also provided with a connection hole 20 for connection to the rear subframe.

[0056] The first connection area 121 can match the shape of the bottom of the vehicle. The second connection area 122 can be tilted from the protection area 11 toward the connection side 101.

[0057] In a feasible embodiment, as shown in FIG3 and FIG4 , a drainage hole is further included. The drainage hole is formed in at least one of the protection area 11 and the connection area 12 , and the drainage hole penetrates the guard plate body 10 along the thickness direction of the guard plate body 10 .

[0058] In the above embodiment, drainage holes are formed on the bottom guard plate 1 to drain water between the bottom guard plate 1 and the bottom of the vehicle, thereby preventing the bottom of the vehicle from becoming moldy or corroded, which may affect the service life of the vehicle.

[0059] In a feasible embodiment, the drainage hole includes a first drainage hole 13 formed in the first partition 111, and the first drainage hole 13 is circular in shape; and / or, the drainage hole includes a second drainage hole 14 formed in the second partition 112, and the second drainage hole 14 is a rounded rectangle in shape.

[0060] In the above manner, the drainage holes may include a first drainage hole 13 and / or a second drainage hole 14. The first drainage hole 13 is located in the first partition 111. Since the first angle a formed between the first partition 111 and the plane is relatively small, the axial direction of the first drainage hole 13 is nearly perpendicular to the airflow direction, thereby greatly reducing the impact on air resistance. The axial direction of the first drainage hole 13 is nearly perpendicular to the plane, allowing the water to be discharged nearly vertically, thereby achieving rapid drainage. Among different shapes, a circle with the same circumference has a larger area, that is, a circle with the same area has a smaller circumference. The larger the circumference of the first drainage hole 13, the greater the impact on wind resistance. Setting the shape of the first drainage hole 13 to a circle can reduce the impact of the setting of the first drainage hole 13 on air resistance, thereby further reducing the air resistance of the vehicle.

[0061] Second drainage holes 14 are located in second partition 112. The junction between first partition 111 and second partition 112 protrudes away from connection side 101. This junction provides some shielding for second drainage holes 14, reducing the probability of airflow from first partition 111 to second partition 112 coming into contact with second drainage holes 14. This, in turn, reduces the impact of second drainage holes 14 on air resistance. Furthermore, providing second drainage holes 14 further improves drainage speed and yield, reducing the probability of water accumulation on the vehicle side of underbody panel 1.

[0062] In the above embodiment, the second drainage holes 14 are in the shape of a rounded rectangle. On the one hand, the spacing between the second drainage holes 14 is small within the preset space, which can increase the hole area, i.e., the drainage area. On the other hand, it can reduce stress concentration at the corners, thereby helping to extend the service life of the bottom guard plate 1.

[0063] The shape of the second drainage hole 14 may also be rectangular, circular, etc., which is not particularly limited in this application.

[0064] In a feasible embodiment, as shown in Figures 3 and 4, the drainage hole also includes a third drainage hole 18 formed in the second connection area 122. The third drainage hole 18 is circular in shape. The second connection area 122 includes an auxiliary reinforcement groove 19. At least part of the third drainage hole 18 is located in the auxiliary reinforcement groove 19.

[0065] In the above embodiment, the second connection area 122 includes an auxiliary reinforcement groove 19 to improve the reliability of the second connection area 122. The drainage holes also include a third drainage hole 18 formed in the second connection area 122, at least a portion of which is located within the auxiliary reinforcement groove 19. Positioning the third drainage hole 18 within the auxiliary reinforcement groove 19 reduces contact between the third drainage hole 18 and the airflow under the vehicle, thereby reducing the impact on wind resistance.

[0066] When the space in the auxiliary reinforcement groove 19 is insufficient to accommodate a sufficient number of third drainage holes 18 , the third drainage holes 18 can also be arranged outside the auxiliary reinforcement groove 19 to meet drainage requirements.

[0067] In the above embodiment, the extension direction of the auxiliary reinforcement groove 19 may be the same as the flow direction of the airflow, which is not particularly limited in this application.

[0068] In a feasible embodiment, as shown in Figures 3 to 5, the second partition is formed with a guide structure 15, which includes a guide groove 151 and a reinforcing rib 152. The reinforcing rib 152 extends along the arrangement direction of the first partition 111 and the second partition 112. The reinforcing rib 152 is located between adjacent guide grooves 151, and the guide groove 151 includes a first opening toward the exposed side 102 and a second opening toward the tail.

[0069] In the above embodiment, on the one hand, the airflow at the bottom of the vehicle can be discharged into multiple parts through the guide structure 15, and each guide structure 15 contains a part, thereby reducing the mutual influence between the airflows in different parts, ensuring the orderliness of the gas streamlines, and eliminating the tendency of the airflow to form a tail vortex when leaving the bottom guard plate, so as to further reduce the vehicle's wind resistance.

[0070] On the other hand, the guide structure 15 includes a guide groove 151, and the second drainage hole 14 is located in the guide groove 151, which can be further blocked by the junction between the first partition 111 and the second partition 112, thereby further reducing the impact of the setting of the second drainage hole 14 on air resistance.

[0071] In a feasible embodiment, as shown in Figures 3 and 4, the second drainage hole 14 is arranged on the side of the guide groove 151 close to the first partition 111, and each guide groove 151 includes at least one drainage hole group 16, and the drainage hole group 16 includes a plurality of second drainage holes 14 arranged along the boundary line between the first partition 111 and the second partition 112.

[0072] In the above embodiment, the second drainage hole 14 is arranged on the side of the guide groove 151 close to the first partition 111, and the second drainage holes 14 in the multiple drainage hole groups 16 are arranged along the boundary line between the first partition 111 and the second partition 112, so that the second drainage holes 14 are close to the boundary between the first partition 111 and the second partition 112, and can be further blocked by the boundary between the first partition 111 and the second partition 112.

[0073] In a feasible implementation, when there are multiple drainage hole groups 16 , the multiple drainage hole groups 16 are arranged along the arrangement direction of the first partition 111 and the second partition 112 .

[0074] In a feasible embodiment, as shown in Figures 3 and 4, the first partition 111 includes a reinforcement groove 17, which is in the shape of a rounded rectangle. The reinforcement groove 17 extends along the arrangement direction of the first partition 111 and the second partition 112. The first drainage hole 13 is located in the reinforcement groove 17, and each reinforcement groove 17 includes a plurality of first drainage holes 13 arranged along the arrangement direction of the first partition 111 and the second partition 112.

[0075] In the above embodiment, the reinforcement groove 17 is provided to enhance the strength of the first partition 111 and to extend its service life. The rounded rectangular shape of the reinforcement groove 17 can reduce stress concentration, thereby further enhancing its service life. The reinforcement groove 17 extends along the arrangement direction of the first partition 111 and the second partition 112, in the same direction as the airflow, thereby reducing the impact on wind resistance. The first drainage holes 13 are located within the reinforcement groove 17, and each reinforcement groove 17 includes a plurality of first drainage holes 13 arranged along the arrangement direction of the first partition 111 and the second partition 112, so that the first drainage holes 13 can be accommodated by the reinforcement groove 17, reducing the contact between the first drainage holes 13 and the airflow at the bottom of the vehicle, thereby reducing the impact on wind resistance.

[0076] The present application also provides a vehicle 2 , as shown in FIG6 , which includes any one of the bottom guard plates 1 provided in the above embodiments of the present application.

[0077] The vehicle 2 provided in this application may be a pure electric vehicle 2, a hybrid vehicle 2 or an extended-range vehicle 2, etc., and this application does not make any special limitations.

[0078] The wind resistance of the vehicle provided in this application can be effectively reduced, which helps to improve the vehicle's range, thereby improving the vehicle's convenience and durability, and thus improving the user experience.

[0079] While the embodiments described above are not exhaustive, they do not limit the present application to specific embodiments. Clearly, numerous modifications and variations are possible based on the above description. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better utilize the present application and its modifications. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A bottom guard plate, characterized in that: The guard plate body comprises a connecting side and an exposed side arranged along the thickness direction of the guard plate body, the connecting side of the guard plate body is used to connect with the vehicle, and the guard plate body comprises: a protection zone, comprising a first partition and a second partition, wherein a junction of the first partition and the second partition protrudes in a direction away from the connection side; Wherein, when the vehicle is placed on a plane and the guard plate body is installed on the bottom of the vehicle, the second partition is located on the side of the first partition facing the rear of the vehicle, and a first angle is formed between the first partition and the plane with the opening facing the rear, and a second angle is formed between the second partition and the plane with the opening facing the rear, and the first angle is smaller than the second angle.

2. The bottom guard plate according to claim 1, characterized in that: The first angle is a, 2°≤a≤3°, and the second angle is A, 14°≤A≤15°.

3. The bottom guard plate according to claim 1, characterized in that: The thickness between the side of the first partition facing the connection side and the side away from the connection side gradually increases from the end away from the second partition to the end close to the second partition, and the thickness between the side of the second partition facing the connection side and the side away from the connection side gradually increases from the end away from the first partition to the end close to the first partition, and the maximum thickness at the junction of the first partition and the second partition is H, 30mm≤H≤40mm; Along the arrangement direction of the first partition and the second partition, the length of the first partition is L, 400 mm ≤ L ≤ 500 mm; The maximum distance between the first partition and the plane is D, 150 mm ≤ D ≤ 160 mm.

4. The bottom guard plate according to claim 1, characterized in that: It also includes a connection area, which is connected to the surrounding side of the protection area and is used to connect and fix the protection area to the vehicle; the connection area includes a first connection area and a second connection area, the first connection area is located on the side of the first partition away from the second partition, and the second connection area is located on both sides of the protection area along the arrangement direction of the first partition and the second partition.

5. The bottom guard plate according to claim 4, characterized in that: The invention also includes a drainage hole, which is formed in at least one of the protection area and the connection area, and the drainage hole penetrates the guard plate body along the thickness direction of the guard plate body.

6. The bottom guard plate according to claim 5, characterized in that: The drainage holes include a first drainage hole formed in the first partition, and the first drainage hole is circular in shape; and / or the drainage holes include a second drainage hole formed in the second partition, and the second drainage hole is a rounded rectangular in shape.

7. The bottom guard plate according to claim 5, characterized in that: The drainage holes further include a third drainage hole formed in the second connection area. The third drainage hole is circular in shape. The second connection area includes an auxiliary reinforcement groove. At least part of the third drainage hole is located in the auxiliary reinforcement groove.

8. The bottom guard plate according to claim 6, characterized in that: The second partition is formed with a guide structure, which includes a guide groove and a reinforcing rib. The reinforcing rib extends along the arrangement direction of the first partition and the second partition. The reinforcing rib is located between adjacent guide grooves. The guide groove includes a first opening toward the exposed side and a second opening toward the tail.

9. The bottom guard plate according to claim 8, characterized in that: The second drainage hole is arranged on a side of the guide groove close to the first partition, each of the guide grooves includes at least one drainage hole group, and the drainage hole group includes a plurality of the second drainage holes arranged along the boundary line between the first partition and the second partition; When there are multiple drainage hole groups, the multiple drainage hole groups are arranged along the arrangement direction of the first partition and the second partition.

10. The bottom guard plate according to claim 6, characterized in that: The first partition includes a reinforcement groove, which is in the shape of a rounded rectangle. The reinforcement groove extends along the arrangement direction of the first partition and the second partition. The first drainage hole is located in the reinforcement groove, and each of the reinforcement grooves includes a plurality of first drainage holes arranged along the arrangement direction of the first partition and the second partition.

11. A vehicle, characterized in that: Comprising a bottom guard plate as described in any one of claims 1-10.

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