Vehicle swing arm cover, vehicle swing arm assembly, and vehicle

Abstract

This application discloses a vehicle swing arm cover, a vehicle swing arm assembly, and a vehicle. The vehicle swing arm cover includes an upper guard plate and a lower guard plate. One end of the upper guard plate is connected to one end of the lower guard plate, and the other end of the upper guard plate is separated from the other end of the lower guard plate to form a receiving space for accommodating the vehicle swing arm between the upper and lower guard plates. The surface of the upper guard plate facing away from the receiving space is formed as an upper guide surface, and the surface of the lower guard plate facing away from the receiving space is formed as a lower guide surface. At the end where the upper and lower guard plates are connected, the upper guide surface and the lower guide surface are connected to form a flow-diverting structure. According to the vehicle swing arm cover of this application, the flow-diverting structure can divert the impact airflow, thereby reducing the impact of the airflow on the vehicle swing arm and helping to reduce the wind resistance of the vehicle swing arm. At the same time, the lower guide surface of the lower guard plate plays a guiding role in the airflow, preventing the airflow from separating prematurely in the uneven area at the bottom of the vehicle swing arm, thus reducing the wind resistance in that area.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a vehicle swing arm cover, a vehicle swing arm assembly, and a vehicle. Background Technology

[0002] In related technologies, the vehicle includes a vehicle control arm. When the vehicle control arm is traveling at high speed, it is directly exposed to airflow, resulting in greater wind resistance at the vehicle control arm. In addition, the bottom of the vehicle control arm is usually uneven, which can easily cause airflow separation, also leading to greater wind resistance. Utility Model Content

[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a vehicle control arm cover that can be used to divert the impact airflow on the vehicle control arm, thereby reducing the impact of the airflow on the vehicle control arm and helping to reduce the wind resistance of the vehicle control arm.

[0004] This application also proposes a vehicle swing arm assembly having the aforementioned vehicle swing arm cover.

[0005] This application also proposes a vehicle having the aforementioned vehicle swing arm assembly.

[0006] According to an embodiment of this application, a vehicle swing arm cover includes an upper guard plate and a lower guard plate. One end of the upper guard plate is connected to one end of the lower guard plate, and the other end of the upper guard plate is separated from the other end of the lower guard plate to form an accommodating space for accommodating a vehicle swing arm between the upper guard plate and the lower guard plate. The surface of the upper guard plate facing away from the accommodating space is formed as an upper guide surface, and the surface of the lower guard plate facing away from the accommodating space is formed as a lower guide surface. At the end where the upper guard plate and the lower guard plate are connected, the upper guide surface and the lower guide surface are connected to form a flow-diverting structure.

[0007] According to the vehicle swing arm cover of the present application embodiment, the diversion structure can divert the impact airflow, thereby reducing the impact of the airflow on the vehicle swing arm and helping to reduce the wind resistance of the vehicle swing arm.

[0008] According to some embodiments of this application, at the end where the upper guard plate and the lower guard plate are connected, the angle between the upper guide surface and the lower guide surface is less than 80°.

[0009] According to some embodiments of this application, the lower guide surface includes a first sub-guide surface and a second sub-guide surface that are connected to each other. The first sub-guide surface and the second sub-guide surface are arranged one after the other in the longitudinal direction of the vehicle. The first sub-guide surface is connected to the upper guide surface to form the flow splitting structure. The included angle between the first sub-guide surface and the second sub-guide surface is an obtuse angle.

[0010] According to some embodiments of this application, in the longitudinal direction of the vehicle, the first sub-guide surface is arranged with a high front end and a low rear end, the inclination angle of the first sub-guide surface relative to the horizontal plane is 45° to 75°, the inclination angle of the second sub-guide surface relative to the horizontal plane is no greater than 5°, and the second sub-guide surface is a downwardly arched arc surface.

[0011] According to some embodiments of this application, the lower guard plate is provided with mounting structures for connecting to the vehicle swing arm, and there are at least three mounting structures, with the plurality of mounting structures arranged in a non-linear manner.

[0012] According to some embodiments of this application, a cavity is formed between the diversion structure and the vehicle swing arm, and the swing arm cover plate further includes a reinforcing rib integrally formed with the diversion structure, the reinforcing rib being disposed on the inner surface of the cavity.

[0013] According to a second aspect of this application, a vehicle swing arm assembly is used in a vehicle, characterized in that the vehicle swing arm assembly includes: a vehicle swing arm and the aforementioned vehicle swing arm cover, the vehicle swing arm being at least partially received in the receiving space, the upper guard plate being at least partially located above the vehicle swing arm, the lower guard plate being at least partially located below the vehicle swing arm, and the connection between the upper guard plate and the lower guard plate being located on the side of the vehicle swing arm facing forward of the vehicle.

[0014] According to the vehicle swing arm assembly of the present application embodiment, by orienting the diversion structure toward the front of the vehicle, the diversion structure can divert the impact airflow on the front end of the vehicle swing arm, thereby reducing the impact of the airflow on the vehicle swing arm and helping to reduce the wind resistance of the vehicle swing arm.

[0015] According to some embodiments of this application, in the longitudinal direction of the vehicle, the front end of the lower guard plate extends forward beyond the vehicle swing arm, and the rear end of the lower guard plate extends backward beyond the vehicle swing arm or is flush with the rear end of the vehicle swing arm.

[0016] According to some embodiments of this application, in the direction of gravity, the upper guard plate covers the portion of the lower guard plate that extends forward beyond the vehicle swing arm; and in the longitudinal direction of the vehicle, the rear end edge of the upper guard plate engages with the surface of the vehicle swing arm to form a closed connection, or the rear end edge of the upper guard plate overlaps the upper surface of the vehicle swing arm, or a portion of the rear end edge of the upper guard plate engages with the surface of the vehicle swing arm to form a closed connection, and the remaining rear end edge of the upper guard plate overlaps the upper surface of the vehicle swing arm.

[0017] A vehicle according to a third aspect of this application includes the vehicle swing arm assembly described above, and the vehicle further includes wheel covers, the vehicle swing arm assembly being at least partially disposed within the wheel covers.

[0018] According to the vehicle embodiment of this application, by orienting the diversion structure towards the front of the vehicle, the diversion structure can divert the impact airflow on the front end of the vehicle swing arm, thereby reducing the impact of the airflow on the vehicle swing arm and helping to reduce the wind resistance of the vehicle swing arm.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] Figure 1 This is a perspective view of a vehicle swing arm cover according to an embodiment of this application;

[0021] Figure 2 This is a top view of a vehicle swing arm cover according to an embodiment of this application;

[0022] Figure 3 This is a bottom view of the vehicle swing arm cover according to an embodiment of this application;

[0023] Figure 4 This is a right view of the vehicle swing arm cover according to an embodiment of this application;

[0024] Figure 5 This is a left view of the vehicle swing arm cover according to an embodiment of this application;

[0025] Figure 6 This is a perspective view of a vehicle swing arm assembly according to an embodiment of this application;

[0026] Figure 7 This is a top view of a vehicle swing arm assembly according to an embodiment of this application;

[0027] Figure 8a yes Figure 7 A schematic diagram of the cross-section after being cut along section line AA;

[0028] Figure 8b This is a schematic diagram of the wading area at the vehicle's swing arm when the vehicle swing arm cover of this application is not used;

[0029] Figure 9 This is a bottom view of a vehicle swing arm assembly according to an embodiment of this application;

[0030] Figure 10 This is a top view of a vehicle swing arm according to an embodiment of this application;

[0031] Figure 11 This is a bottom view of the vehicle swing arm according to an embodiment of this application;

[0032] Figure 12 This is a bottom view of the front of a vehicle according to an embodiment of this application;

[0033] Figure 13 This is a side view of the front portion of a vehicle according to an embodiment of this application;

[0034] Figure 14a This is a schematic diagram showing the relative positions of the vehicle swing arm assembly and the wheel arch in an embodiment of this application;

[0035] Figure 14b This is a schematic diagram showing the relative positions of the vehicle's control arm and wheel arch when the control arm cover of this application is not used.

[0036] Figure label:

[0037] Vehicle 1000, vehicle swing arm assembly 100, wheel cover 200, rear wheel cover 2001, front wheel cover 2002, vehicle swing arm cover 10, upper guard plate 1, upper guide surface 11, first part of upper guard plate 12, second part of upper guard plate 13, lower guard plate 2, first sub-guide surface 21, second sub-guide surface 22, mounting structure 23, lower guide surface 24, accommodating space 3, reinforcing rib 4, horizontal rib 41, first vertical rib 42, second vertical rib 43, connecting part 5, vehicle swing arm 20, first support arm 201, second support arm 202. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0039] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] The following is combined with Figures 1-14b The present application describes in detail the vehicle swing arm cover 10, the vehicle swing arm assembly 100, and the vehicle 1000 according to embodiments thereof.

[0041] Reference Figures 1-5 , Figure 8aAs shown, the vehicle swing arm cover 10 according to an embodiment of this application may include: an upper guard plate 1 and a lower guard plate 2. One end of the upper guard plate 1 is connected to one end of the lower guard plate 2, and the other end of the upper guard plate 1 is separated from the other end of the lower guard plate 2 to form an accommodating space 3 between the upper guard plate 1 and the lower guard plate 2. The accommodating space 3 is used to accommodate the vehicle swing arm 20. The surface of the upper guard plate 1 facing away from the accommodating space 3 is formed as an upper guide surface 11, and the surface of the lower guard plate 2 facing away from the accommodating space 3 is formed as a lower guide surface 24. At the end where the upper guard plate 1 and the lower guard plate 2 are connected, the upper guide surface 11 and the lower guide surface 24 are connected to form a flow-diverting structure. The upper guide surface 11 and the lower guide surface 24 are the windward surfaces.

[0042] Figure 4 This is a schematic diagram of the vehicle swing arm cover 10 when viewed from the rear of the vehicle towards the front (i.e., from back to front) after the vehicle swing arm cover 10 is installed on the vehicle 1000. Figure 5 This is a schematic diagram of the vehicle swing arm cover 10 when viewed from the front to the rear (i.e., from front to back) after the vehicle swing arm cover 10 is installed on the vehicle 1000.

[0043] Specifically, the upper guard plate 1 and the lower guard plate 2 constitute the main body of the guard plate. The main body of the guard plate is installed on the vehicle swing arm 20. The main body of the guard plate has a receiving space 3. The vehicle swing arm 20 is at least partially disposed in the receiving space 3. The connected end of the upper guard plate 1 and the lower guard plate 2 (hereinafter referred to as the connecting end) can protect the vehicle swing arm 20. When the airflow impacts the connecting end of the upper guard plate 1 and the lower guard plate 2 from the windward side, the airflow will impact the diversion structure. The diversion structure can divert the impacting airflow, so that part of the airflow flows along the upper guide surface 11 and the other part flows along the lower guide surface 24. As a result, the impact on the vehicle swing arm 20 located behind the diversion structure is smaller, and the resistance of the vehicle swing arm 20 is reduced. Therefore, after the vehicle swing arm cover plate 10 and the vehicle swing arm 20 are installed on the vehicle 1000, it is beneficial to improve the aerodynamic performance of the vehicle 1000.

[0044] In some embodiments, after the vehicle swing arm cover 10 is installed on the vehicle 1000, the connecting ends of the upper guard plate 1 and the lower guard plate 2 can face forward, backward, or other directions. The relative positions of the upper guard plate 1 and the lower guard plate 2 also depend on the installation of the vehicle swing arm cover 10 on the vehicle 1000. Figure 6 , Figure 8a , Figure 12 In the example shown, the connecting ends of the upper guard plate 1 and the lower guard plate 2 face the front of the vehicle, and the upper guard plate 1 is located above the lower guard plate 2. For ease of description, the following description will use the example of the connecting ends of the upper guard plate 1 and the lower guard plate 2 facing the front of the vehicle and the upper guard plate 1 being located above the lower guard plate 2 to illustrate the structure and beneficial effects of the vehicle swing arm cover 10.

[0045] Reference Figure 8aAs shown, the main body of the guard plate has a shape that is closed in the front and open in the back along the length of the vehicle 1000. The connection end structure of the upper guard plate 1 and the lower guard plate 2 reduces the positive pressure on the front of the vehicle swing arm 20 that is perpendicular to the airflow direction.

[0046] In some embodiments, either the upper guard plate 1 or the lower guard plate 2 can be constructed as a plate-like structure, which is simple in structure and does not significantly increase the weight of the vehicle swing arm cover 10.

[0047] In other embodiments, either the upper guard plate 1 or the lower guard plate 2 may be constructed as a block structure.

[0048] In related technologies, the windward surface of a vehicle swing arm is usually perpendicular to the horizontal plane, and when traveling at high speeds, it is directly exposed to the airflow, resulting in high wind resistance at the vehicle swing arm. According to the vehicle swing arm cover 10 of this application embodiment, the diversion structure can divert the impact airflow, thereby reducing the impact of the airflow on the vehicle swing arm 20 and helping to reduce the wind resistance of the vehicle swing arm 20.

[0049] In some embodiments of this application, reference is made to Figure 1 , Figure 8a As shown, at the end where the upper guard plate 1 and the lower guard plate 2 are connected, the upper guide surface 11 and the lower guide surface 24 form an acute angle, with the included angle between the upper guide surface 11 and the lower guide surface 24 being less than 80°. In this way, the acute angle structure formed by the upper guide surface 11 and the lower guide surface 24 can better guide and disperse the incoming flow from the front, and make the dispersed airflow adhere to the upper guide surface 11 and the lower guide surface 24 and flow backward.

[0050] Reference Figure 8a As shown, the angle between the upper guide surface 11 and the lower guide surface 24 is γ+β, where γ+β < 80°. For example, γ+β can be 50°, 55°, 60°, 65°, 70°, 75°, etc. The acute-angled shape at the junction of the upper guide surface 11 and the lower guide surface 24 reduces the normal pressure on the front of the vehicle swing arm 20 perpendicular to the airflow direction.

[0051] In some embodiments of this application, reference is made to Figure 1 , Figure 8a , Figures 12-13 , Figure 14a As shown, the vehicle swing arm cover 10 is applied to the vehicle 1000. In the longitudinal direction of the vehicle 1000, the upper guard plate 1 has a lower front end and a higher rear end arrangement. The upper guide surface 11 has an inclination angle of γ relative to the horizontal plane, where 5° < γ < 35°. For example, γ can be 10°, 15°, 20°, 25°, 30°, etc., or other values ​​between 5° and 35°.

[0052] In some embodiments of this application, reference is made to Figure 8aAs shown, the lower guide surface 24 includes a first sub-guide surface 21 and a second sub-guide surface 22 that are connected to each other. The first sub-guide surface 21 and the second sub-guide surface 22 are arranged front and back in the vehicle's longitudinal direction. The first sub-guide surface 21 is connected to the upper guide surface 11 to form the aforementioned flow-dividing structure. The angle between the first sub-guide surface 21 and the second sub-guide surface 22 is an obtuse angle, which facilitates the airflow to adhere to the body (i.e., adhere to the first sub-guide surface 21 and the second sub-guide surface 22) and flow from front to back.

[0053] Reference Figure 8a As shown, the angle between the first sub-guide surface 21 and the second sub-guide surface 22 is α, where 90° < α < 180°. For example, α can be 105°, 120°, 135°, 150°, 170°, etc., or other values ​​between 90° and 180°.

[0054] In some embodiments of this application, reference is made to Figure 8a As shown, the lower guard plate 2 has an overall arc design. The first sub-guide surface 21 and the second sub-guide surface 22 are smoothly connected and cover the bottom of the vehicle swing arm 20, which helps to reduce the increase in wind resistance caused by the unevenness at the bottom of the vehicle swing arm 20 and reduce wind resistance.

[0055] In some embodiments of this application, the first sub-guide surface 21 forms an acute angle with the upper guide surface 11, and the included angle between the first sub-guide surface 21 and the upper guide surface 11 is less than 80°. (Refer to...) Figure 8a As shown, the angle between the first sub-guide surface 21 and the upper guide surface 11 is γ+β, where γ+β < 80°. Specifically, the first sub-guide surface 21 is connected to the upper guide surface 11. The acute angle structure formed by the first sub-guide surface 21 and the upper guide surface 11 can better guide the dispersion of the incoming flow from the front, and make the dispersed airflow adhere to the upper guide surface 11 and the first sub-guide surface 21 and flow backward.

[0056] In some embodiments of this application, the vehicle swing arm cover 10 is applied to the vehicle 1000. In the front-rear direction of the vehicle 1000, the first sub-guide surface 21 is arranged with a high front end and a low rear end. The inclination angle of the first sub-guide surface 21 relative to the horizontal plane is 45° to 75°. The inclination angle of the second sub-guide surface 22 relative to the horizontal plane is no more than 5°. The second sub-guide surface 22 is an arc surface that arches downward.

[0057] Reference Figure 8a As shown, the inclination angle of the first sub-guide surface 21 relative to the horizontal plane is β, where 45° < β < 75°. For example, β can be 50°, 55°, 60°, 65°, 70°, etc., or other values ​​between 45° and 75°.

[0058] exist Figure 8aIn the example, the second sub-guide surface 22 is arranged with a lower front end and a higher rear end. The angle between the second sub-guide surface 22 and the horizontal plane is θ, where 0° < θ ≤ 5°. For example, θ can be 1°, 2°, 3°, 4°, 5°, or other values ​​between 0° and 5°.

[0059] In some embodiments not shown in the figure, the second sub-guide surface 22 can be arranged with a higher front end and a lower rear end, and the tilt angle of the second sub-guide surface 22 relative to the horizontal plane is no greater than 5°. If the tilt angle is greater than 5°, more of the airflow guided by the second sub-guide surface 22 will blow towards the ground. This portion of the airflow blowing towards the ground will experience increased energy dissipation due to the ground effect, resulting in increased wind resistance. Therefore, by setting the tilt angle of the second sub-guide surface 22 relative to the horizontal plane to no greater than 5°, the airflow blowing towards the ground through the second sub-guide surface 22 can be reduced, which is beneficial for reducing wind resistance.

[0060] In some other embodiments not shown in the figure, the second sub-guide surface 22 may be arranged horizontally, in which case the tilt angle of the second sub-guide surface 22 relative to the horizontal plane is 0°.

[0061] In some embodiments of this application, reference is made to Figures 1-3 , Figure 9 As shown, the lower guard plate 2 is provided with a mounting structure 23, which is used to connect with the vehicle swing arm 20. By providing the mounting structure 23, it is convenient to install the vehicle swing arm cover 10 onto the vehicle swing arm 20.

[0062] In a specific embodiment, there may be one or more mounting structures 23.

[0063] In some embodiments, the mounting structure 23 can be a mounting hole, at which the lower guard plate 2 is stably installed on the vehicle swing arm 20 by means of screws or snap-fit. For example, a bolt passes through the mounting hole and is fastened to the vehicle swing arm 20, or a clip passes through the mounting hole and is fastened to the vehicle swing arm 20. In addition, by setting the mounting structure 23 on the lower guard plate 2, it is also convenient to remove and install the vehicle swing arm cover 10 from under the vehicle.

[0064] In other embodiments, the mounting structure 23 may be a projection weld stud, projection weld nut, etc.

[0065] In some embodiments of this application, reference is made to Figures 1-3 As shown, there are at least three mounting structures 23, which are arranged in a non-linear manner. The multiple mounting structures 23 are staggered on the lower guard plate 2, which helps to increase the connection between the lower guard plate 2 and the vehicle swing arm 20.

[0066] In some embodiments, refer to Figures 1-3As shown, there are three mounting structures 23, which are distributed at the three vertices of the triangle.

[0067] In some embodiments of this application, reference is made to Figure 1 , Figure 4 , Figure 8a As shown, a cavity is formed between the flow divider structure and the vehicle swing arm 20. The swing arm cover 10 also includes a reinforcing rib 4 integrally formed with the flow divider structure, and the reinforcing rib 4 is disposed on the inner surface of the cavity. Specifically, the reinforcing rib 4 can be disposed only on the surface of the upper guard plate 1 facing the cavity, or only on the surface of the lower guard plate 2 facing the cavity, or simultaneously on the surfaces of both the upper guard plate 1 and the lower guard plate 2 facing the cavity. The reinforcing rib 4 can increase the overall strength of the guard plate body, thereby improving the protective performance of the vehicle swing arm cover 10 for the vehicle swing arm 20.

[0068] In some embodiments of this application, reference is made to Figure 1 , Figure 4 , Figure 8a As shown, the reinforcing rib 4 includes a horizontal rib 41, a first vertical rib 42, and a second vertical rib 43. Both the first vertical rib 42 and the second vertical rib 43 are connected to the horizontal rib 41. The horizontal rib 41 is connected to the lower guard plate 2. There are multiple first vertical ribs 42, which are located above the horizontal ribs 41 and are connected to the upper guard plate 1. There are multiple second vertical ribs 43, which are located below the horizontal ribs 41 and are connected to the lower guard plate 2.

[0069] In some embodiments of this application, reference is made to Figure 1 , Figure 6 As shown, the vehicle swing arm cover 10 also includes a connecting part 5, which connects one side of the upper guard plate 1 and the lower guard plate 2, as shown in the figure. Figure 6 As shown, the connecting part 5 connects the side of the upper guard plate 1 and the lower guard plate 2 facing outwards. The distance between the front end of the vehicle swing arm 20 and the rear side of the connecting part 5 is small, or even zero. The connecting part 5 surrounds the front end of the vehicle swing arm 20. When the vehicle 1000 is wading through water, water is less likely to enter between the vehicle swing arm cover 10 and the vehicle swing arm 20 through the side of the upper guard plate 1 and the lower guard plate 2 facing outwards.

[0070] In some embodiments, the connecting portion 5 can be configured as a plate-like structure, which is simple in structure and does not significantly increase the weight of the vehicle swing arm cover 10.

[0071] In other embodiments, the connecting portion 5 may be configured as a block structure.

[0072] Reference Figures 6-7 , Figure 8a , Figures 9-11As shown, the vehicle swing arm assembly 100 according to the second aspect embodiment of this application may include a vehicle swing arm 20 and a vehicle swing arm cover 10 of the above embodiment. The vehicle swing arm 20 is at least partially housed in the accommodating space 3. The upper guard plate 1 is at least partially located above the vehicle swing arm 20, and the lower guard plate 2 is at least partially located below the vehicle swing arm 20. The connection between the upper guard plate 1 and the lower guard plate 2 is located on the side of the vehicle swing arm 20 facing the front of the vehicle.

[0073] After the vehicle swing arm assembly 100 is installed on the vehicle 1000, the front-facing end of the upper guard plate 1 is connected to the front-facing end of the lower guard plate 2, while the rear-facing end of the upper guard plate 1 is separated from the rear-facing end of the lower guard plate 2. The flow diversion structure at the connection end of the upper guard plate 1 and the lower guard plate 2 can divert the impact airflow received by the front end of the vehicle swing arm 20, thereby reducing the impact of the airflow on the vehicle swing arm 20.

[0074] In related technologies, the bottom of a vehicle swing arm is usually uneven, which can easily cause airflow separation and lead to greater wind resistance. The lower guard plate 2 of the vehicle swing arm cover 10 in this application can cover and wrap around the bottom of the vehicle swing arm 20, reducing the disturbance caused by the uneven shape of the vehicle swing arm 20 itself. The lower guide surface 24 of the lower guard plate 2 is a smooth guide surface, which can guide the airflow to flow backward along the body. In other words, the lower guide surface 24 of the lower guard plate 2 guides the airflow, preventing premature separation of the airflow in the uneven area at the bottom of the vehicle swing arm 20, thus reducing wind resistance in that area.

[0075] In related technologies, when a vehicle is subjected to a frontal airflow, the airflow at the front end of the vehicle control arm causes a significant impact on the control arm, leading to increased wind resistance. According to the vehicle control arm assembly 100 of this application, by orienting the flow-diverting structure towards the front of the vehicle, the flow-diverting structure can divert the airflow at the front end of the vehicle control arm 20, thereby reducing the impact of the airflow on the vehicle control arm 20 and thus reducing the wind resistance of the vehicle control arm 20.

[0076] In some embodiments of this application, reference is made to Figure 8a , Figure 9 As shown, in the longitudinal direction of the vehicle 1000, the front end of the lower guard plate 2 extends forward beyond the vehicle swing arm 20, and the rear end of the lower guard plate 2 extends backward beyond the vehicle swing arm 20 or is flush with the rear end of the vehicle swing arm 20. In this way, in the longitudinal direction of the vehicle 1000, the lower guard plate 2 can cover the bottom surface of the vehicle swing arm 20, and the lower guard plate 2 can provide comprehensive protection for the bottom of the vehicle swing arm 20, preventing airflow from impacting the bottom of the vehicle swing arm 20.

[0077] In the longitudinal direction of the vehicle 1000, the length of the lower skid plate 2 is greater than the length of the vehicle swing arm 20. The lower guide surface 24 of the lower skid plate 2 guides the airflow to flow rearward, reducing the impact of the airflow on the bottom of the vehicle swing arm 20. The lower guide surface 24 of the lower skid plate 2 is a smooth guide surface, which helps to reduce the force of the airflow impacting the components behind the vehicle swing arm 20 (such as the rear of the wheel arch 2001).

[0078] In some embodiments of this application, reference is made to Figure 1 , Figure 8a As shown, in the longitudinal direction of the vehicle 1000, the length of the upper guard plate 1 is less than the length of the lower guard plate 2. This helps to save material on the upper guard plate 1 and reduce the weight of the vehicle swing arm cover 10.

[0079] In some embodiments of this application, reference is made to Figure 1 , Figure 8a As shown, in the left-right direction of vehicle 1000, the width of the upper guard plate 1 is equal to or approximately equal to the width of the lower guard plate 2.

[0080] In some embodiments of this application, in the direction of gravity, the upper guard plate 1 covers the portion of the lower guard plate 2 that extends forward beyond the vehicle swing arm 20. Thus, the connection end between the upper guard plate 1 and the lower guard plate 2 can be located on the front side of the vehicle swing arm 20, and a cavity can be formed between the flow diversion structure and the vehicle swing arm 20. This cavity can act as a buffer and avoidance mechanism to prevent the vehicle swing arm cover 10 from directly colliding with the vehicle swing arm 20 when impacted by airflow.

[0081] In some embodiments, in the longitudinal direction of the vehicle 1000, the rear end edge of the upper guard plate 1 engages with the surface of the vehicle swing arm 20 to form a closed connection. Thus, the connection between the upper guard plate 1 and the vehicle swing arm 20 is closed and seamless. When the vehicle 1000 is wading through water, excessive water accumulation inside the accommodating space 3 will not occur in a short period, thus preventing damage to the mounting structure 23 due to excessive water accumulation and the resulting detachment of the vehicle swing arm cover 10.

[0082] Alternatively, in some embodiments, in the longitudinal direction of the vehicle 1000, the rear end edge of the upper guard plate 1 overlaps the upper surface of the vehicle swing arm 20. In this way, the rear end of the upper guard plate 1 covers the upper surface of the vehicle swing arm 20, and the upper guard plate 1 and the vehicle swing arm 20 are sealed, without gaps or with minimal gaps. When the vehicle 1000 is wading through water, it will not cause excessive water accumulation inside the accommodating space 3 in a short period of time, thus preventing the vehicle swing arm cover plate 10 from falling off due to damage to the mounting structure 23 caused by excessive water accumulation.

[0083] Alternatively, in some embodiments, in the longitudinal direction of the vehicle 1000, a portion of the rearward edge of the upper guard plate 1 engages with the surface of the vehicle swing arm 20 to form a closed connection, and the remaining rearward edge of the upper guard plate 1 overlaps the upper surface of the vehicle swing arm 20. In this way, the upper guard plate 1 and the vehicle swing arm 20 are sealed and seamless. When the vehicle 1000 is wading through water, it will not cause excessive water accumulation inside the accommodating space 3 in a short period of time, thus preventing the vehicle swing arm cover plate 10 from detaching due to damage to the mounting structure 23 caused by excessive water accumulation.

[0084] In some embodiments of this application, reference is made to Figures 1-2 , Figures 4-7 As shown, the upper guard plate 1 includes a first part 12 and a second part 13. The second part 13 is connected to the first part 12. Both the first part 12 and the second part 13 are located above the lower guard plate 2 and are connected to the lower guard plate 2. The rear edge of the second part 13 engages with the surface of the vehicle swing arm 20 to form a closed connection. The rear edge of the first part 12 overlaps the upper surface of the vehicle swing arm 20. When the vehicle 1000 is wading through water, water is less likely to enter between the vehicle swing arm cover 10 and the vehicle swing arm 20 through the upper sides of the first part 12 and the second part 13.

[0085] In some embodiments of this application, reference is made to Figures 1-2 , Figures 4-7 As shown, the first part 12 and the second part 13 of the upper guard plate are connected in the left-right direction of the vehicle 1000.

[0086] In some embodiments of this application, reference is made to Figures 1-2 , Figures 4-7 As shown, in the front-rear direction of vehicle 1000, the length of the first part 12 of the upper guard plate is greater than the length of the second part 13 of the upper guard plate.

[0087] In some embodiments of this application, reference is made to Figure 1 , Figure 4 As shown, multiple first vertical ribs 42 are located above the horizontal ribs 41. Some of the first vertical ribs 42 are connected to the first part 12 of the upper guard plate, and the other part of the first vertical ribs 42 are connected to the second part 13 of the upper guard plate.

[0088] Reference Figure 8b As shown, in the related technology, the top of the ordinary cover plate 10' is not closed or covered at the connection position with the vehicle swing arm 20'. When the vehicle 1000 is wading through water, the water flow impacts the cover plate 10' in the F1 direction. The water flow can easily enter the cover plate 10', causing too much water to accumulate inside the cover plate 10' in a short time, which causes the cover plate 10' to fall off.

[0089] And reference Figures 6-7, Figure 8a As shown, in the vehicle control arm assembly 100 of this application, the upper guard plate 1 of the vehicle control arm cover 10 is located above the vehicle control arm 20. The edge of the upper guard plate 1 forms a closure or cover with the vehicle control arm 20. The upper guard plate 1 can close and cover the top of the vehicle control arm 20, so that when the vehicle 1000 is wading through water, too much water will accumulate inside the accommodating space 3 in a short time, and the vehicle control arm cover 10 will not fall off due to damage to the mounting structure 23 caused by too much water accumulation. When the vehicle 1000 is wading through water, the water flow impacts the vehicle control arm cover 10 of this application in the F1 direction. The vehicle control arm cover 10 can divert the water flow in the F1 direction to the F2 and F3 directions, and the water flow in the F2 direction will not enter the accommodating space 3. The setting of the upper guard plate 1 and the lower guard plate 2 can reduce the impact pressure when wading through water and extend the service life of the vehicle control arm cover 10.

[0090] The upper guard plate 1 and the vehicle swing arm 20 are cross-covered or closely connected in the length direction of the vehicle. The connection position between the upper guard plate 1 and the upper surface of the vehicle swing arm 20 forms a closed and covered form, so that when the vehicle 1000 is wading through water, the gap between the upper guard plate 1 and the vehicle swing arm 20 will not be impacted by a large amount of water flow.

[0091] Reference Figures 9-11 As shown, the vehicle swing arm 20 includes a first arm 201 and a second arm 202. The first arm 201 and the second arm 202 are connected. The first arm 201 extends approximately along the left-right direction of the vehicle 1000, and the second arm 202 extends approximately along the front-rear direction of the vehicle 1000. The vehicle swing arm cover 10 is installed on the first arm 201.

[0092] The vehicle control arm 20 is a key component connecting the wheel and the vehicle body. The connection between the vehicle control arm 20 and the wheel is achieved through a ball joint (also known as a ball joint) or through an elastic bushing. The connection between the vehicle control arm 20 and the vehicle body is typically achieved through bushings and bolts, or through bearings and brackets. The specific connection details between the vehicle control arm and the wheel and the vehicle body are not described in this application.

[0093] In some embodiments, the vehicle control arm 20 may be a front vehicle control arm at the front wheel or a rear vehicle control arm at the rear wheel.

[0094] The principle of reducing wind resistance of the vehicle swing arm cover 10 according to the embodiments of this application is as follows: Figure 14a and Figure 14b .in, Figure 14b The curved arrows around the vehicle swing arm 20 are schematic diagrams of the airflow when there is no vehicle swing arm cover 10. Vortexes will be generated above and below the vehicle swing arm 20, resulting in greater wind resistance. Figure 14aThe curved arrows around the vehicle swing arm 20 are a schematic diagram of the airflow when the vehicle swing arm cover 10 is in use. The upper guard plate 1 and the lower guard plate 2 split the airflow, and vortices are not easily generated above and below the vehicle swing arm 20, resulting in lower wind resistance.

[0095] According to the embodiments of this application, the vehicle swing arm cover 10 can reduce the impact of the positive pressure airflow on the vertical surface of the front end of the vehicle swing arm 20, and can also reduce wind resistance, while also reducing the impact force when wading through water.

[0096] Reference Figure 12 As shown, the vehicle 1000 according to a third aspect embodiment of this application includes the vehicle swing arm assembly 100 of the above embodiment.

[0097] According to the embodiment of this application, the vehicle 1000, by facing the diversion structure towards the front of the vehicle, enables the diversion structure to divert the impact airflow received by the front end of the vehicle swing arm 20, thereby reducing the impact of the airflow on the vehicle swing arm 20, which is beneficial to reducing the wind resistance of the vehicle swing arm 20, and thus beneficial to reducing the wind resistance of the entire vehicle.

[0098] In some embodiments of this application, the vehicle 1000 also includes a wheel arch 200, and the vehicle swing arm assembly 100 is at least partially disposed within the wheel arch 200. Figures 12-13 , Figures 14a-14b The diagram shows the position of the vehicle swing arm assembly 100 within the wheel cavity of the wheel arch 200. The wheel arch 200 includes a front portion 2002 and a rear portion 2001, which are connected. The front portion 2002 is located on the front-facing side of the vehicle swing arm cover 10, and the rear portion 2001 is located on the rear-facing side of the vehicle swing arm cover 10. The lower guide surface 24 of the lower guard plate 2 is a smooth guide surface, which can guide the airflow to flow backward along the body, further reducing the impact force on the rear portion 2001 of the wheel arch behind the vehicle swing arm cover 10, thereby reducing the overall vehicle drag. The inventors of this application, through experimental testing, found that the overall vehicle drag coefficient can be reduced by 2 to 3 counts, which is beneficial for improving the driving range.

[0099] It's important to note that the unit of drag coefficient is Cd, and 1 count equals 0.001 Cd. Therefore, reducing the drag coefficient by 2 to 3 counts means a reduction of 0.002 to 0.003 Cd, which is a significant change in aerodynamic optimization. The unit Cd for drag coefficient is dimensionless; it's a ratio representing the relationship between the resistance an object experiences while moving through a fluid and the kinetic energy of the fluid. The smaller the drag coefficient, the less resistance an object experiences while moving through a fluid, and the better its aerodynamic performance. Typically, a reduction of 10 counts can increase the driving range of a pure electric vehicle by 6 to 10 kilometers, depending on the specific model.

[0100] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0101] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0102] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0103] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A vehicle swing arm cover (10) characterized by, include: Upper guard plate (1); and The lower guard plate (2) is connected to one end of the upper guard plate (1) and the other end of the upper guard plate (1) is separated from the other end of the lower guard plate (2) to form a accommodating space (3) for accommodating the vehicle swing arm (20) between the upper guard plate (1) and the lower guard plate (2). The surface of the upper guard plate (1) facing away from the accommodating space (3) is formed as an upper guide surface (11), and the surface of the lower guard plate (2) facing away from the accommodating space (3) is formed as a lower guide surface (24). At the end where the upper guard plate (1) and the lower guard plate (2) are connected, the upper guide surface (11) and the lower guide surface (24) are connected to form a flow-dividing structure.

2. The vehicle swing arm cover (10) according to claim 1, characterized in that, At the end where the upper guard plate (1) and the lower guard plate (2) are connected, the angle between the upper guide surface (11) and the lower guide surface (24) is less than 80°.

3. The vehicle swing arm cover (10) according to claim 2, characterized in that, The lower guide surface (24) includes a first sub-guide surface (21) and a second sub-guide surface (22) that are connected to each other. The first sub-guide surface (21) and the second sub-guide surface (22) are arranged front and back in the vehicle's longitudinal direction. The first sub-guide surface (21) is connected to the upper guide surface (11) to form the flow splitting structure. The included angle between the first sub-guide surface (21) and the second sub-guide surface (22) is an obtuse angle.

4. The vehicle swing arm cover (10) according to claim 3, characterized in that, In the front-rear direction of the vehicle (1000), the first sub-guide surface (21) is arranged with a high front end and a low rear end. The first sub-guide surface (21) has an inclination angle of 45° to 75° relative to the horizontal plane. The second sub-guide surface (22) has an inclination angle of no more than 5° relative to the horizontal plane. The second sub-guide surface (22) is an arc surface that arches downward.

5. The vehicle swing arm cover (10) according to claim 1, characterized in that, The lower guard plate (2) is provided with an installation structure (23) for connecting with the vehicle swing arm (20). There are at least three installation structures (23), and the multiple installation structures (23) are arranged in a non-linear manner.

6. The swing arm cover plate (10) according to claim 1, characterized in that, A cavity is formed between the flow divider structure and the vehicle swing arm (20). The swing arm cover plate (10) also includes a reinforcing rib (4) integrally formed with the flow divider structure. The reinforcing rib (4) is disposed on the inner surface of the cavity.

7. A vehicle control arm assembly (100) for use in a vehicle (1000), characterized in that, The vehicle swing arm assembly (100) includes: Vehicle swing arm (20); and The vehicle swing arm cover (10) according to any one of claims 1-6, wherein the vehicle swing arm (20) is at least partially received in the receiving space (3), the upper guard plate (1) is at least partially located above the vehicle swing arm (20), the lower guard plate (2) is at least partially located below the vehicle swing arm (20), and the connection between the upper guard plate (1) and the lower guard plate (2) is located on the side of the vehicle swing arm (20) facing forward.

8. The vehicle swing arm assembly (100) according to claim 7, characterized in that, In the longitudinal direction of the vehicle (1000), the front end of the lower guard plate (2) extends forward beyond the vehicle swing arm (20), and the rear end of the lower guard plate (2) extends backward beyond the vehicle swing arm (20) or is flush with the rear end of the vehicle swing arm (20).

9. The vehicle swing arm assembly (100) according to claim 8, characterized in that, In the direction of gravity, the upper guard plate (1) covers the portion of the lower guard plate (2) that extends forward beyond the vehicle swing arm (20); Furthermore, in the longitudinal direction of the vehicle (1000), the rear end edge of the upper guard plate (1) is engaged with the surface of the vehicle swing arm (20) to form a closed connection, or the rear end edge of the upper guard plate (1) is superimposed on the upper surface of the vehicle swing arm (20), or a portion of the rear end edge of the upper guard plate (1) is engaged with the surface of the vehicle swing arm (20) to form a closed connection, and the remaining rear end edge of the upper guard plate (1) is superimposed on the upper surface of the vehicle swing arm (20).

10. A vehicle (1000), characterized in that, The vehicle (1000) includes the vehicle swing arm assembly (100) according to any one of claims 7-9, and further includes a wheel arch (200), the vehicle swing arm assembly (100) being at least partially disposed within the wheel arch (200).

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