A vehicle rear wing and vehicle

Abstract

This invention discloses a vehicle rear wing and a vehicle, solving the problem of low-pressure areas still existing at the rear of vehicles in the prior art. It has the beneficial effect of effectively improving the low-pressure situation at the rear of the vehicle and enhancing the high-speed performance of the vehicle. The specific solution is as follows: A vehicle rear wing includes a rear wing that is curved in an arc shape towards the front of the vehicle. The width of the rear wing is greater than the width of the trunk lid. The rear wing protrudes upward from the middle along the length and width directions. The longitudinal section at the highest protrusion point of the rear wing shows that the distance between the highest protrusion point on the side of the rear wing closer to the front of the vehicle is greater than the distance between the highest protrusion point on the other side. The rear wing is inclined upward relative to the trunk lid. The width of the middle part of the rear wing is smaller than the width at both ends. Several fan blade assemblies are arranged on the side of the rear wing facing the trunk lid, and the air outlets of the fan blade assemblies are oriented towards the rear of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and in particular to a vehicle rear wing and a vehicle. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] When a vehicle travels at high speed, a low-pressure area forms at the rear. On the one hand, this reduces the traction of the rear wheels, leading to instability; on the other hand, the low-pressure area at the rear increases the vehicle's drag, affecting high-speed performance.

[0004] To improve the negative lift of automobiles, some existing cars use canard-shaped rear wings. Canard-shaped rear wings can improve airflow at the rear, making the airflow speed under the rear wing faster than that over the upper part of the rear wing, creating a low-pressure area at the lower part of the rear wing, thereby improving grip. However, the inventors have found that although canard-shaped rear wings improve the rear lift of automobiles to a certain extent, due to unreasonable factors in the current design of canard-shaped rear wings, the low-pressure area at the rear of the vehicle still exists, thus affecting the high-speed performance of the vehicle. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a vehicle rear wing that can provide effective negative lift for the vehicle and improve the low pressure situation at the rear of the vehicle to a certain extent.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] A vehicle rear spoiler is provided, which is curved in an arc shape towards the front of the vehicle. The length of the rear spoiler is greater than the width of the trunk lid. The rear spoiler protrudes upward from the middle along both its length and width. In the longitudinal section where the highest protrusion point of the rear spoiler is located, the distance between the highest protrusion point on the side of the rear spoiler closer to the front of the vehicle and the highest protrusion point is greater than the distance between the highest protrusion point on the other side. The rear spoiler is inclined upward relative to the trunk lid. The width of the middle of the rear spoiler is smaller than the width at both ends. Several fan blade assemblies are provided on the side of the rear spoiler facing the trunk lid, and the air outlets of the fan blade assemblies are oriented towards the rear of the vehicle.

[0008] As described above, the vehicle rear wing uses an arc surface as its windward side. The rear wing is angled upward relative to the trunk lid to increase the air pressure on the upper side of the wing. The rear wing has a set length, and a fan blade assembly is installed on the lower side of the wing. When airflow passes over the rear wing, the airflow speed on the lower side is faster than the airflow speed on the upper side, resulting in greater pressure on the upper side and thus providing effective negative lift for the vehicle. The fan blade assembly on the lower side of the rear wing increases the pressure of some airflow after passing through it, which can effectively improve the low-pressure situation at the rear of the vehicle, thereby reducing drag during vehicle operation and improving the high-speed performance of the vehicle.

[0009] As described above, the width of the vehicle rear wing gradually increases from the middle to both ends along the length direction of the vehicle rear wing, i.e., along the width direction of the vehicle. This helps to reduce the drag in the middle of the vehicle rear wing and improve the low-pressure area at the rear of the vehicle.

[0010] To ensure consistent negative lift on both sides of the vehicle's rear wing, the highest protrusion in the middle of the vehicle's rear wing is located at the center of the vehicle's rear wing along its length.

[0011] As described above, a vehicle rear wing includes an arc-shaped rear wing body, with side plates at both ends of the rear wing body. The side plates are inclined downward relative to the rear wing body. Because the side plates extend beyond the width of the vehicle body, they generate a certain amount of resistance during vehicle operation. The downwardly inclined side plates help reduce the resistance at both ends of the vehicle rear wing.

[0012] As described above, for a vehicle rear wing, considering the connection between the vehicle rear wing and the trunk lid, the length of the rear wing body, i.e. the projected length of the rear wing body in the direction of the trunk lid, is greater than the width of the trunk lid, so as to fully ensure the pressure on the upper side of the vehicle rear wing.

[0013] As described above, in the vehicle rear wing, the angle of inclination of the line connecting the side of the rear wing closest to the front of the vehicle and the highest protrusion point relative to the horizontal plane is smaller than the angle of inclination of the line connecting the other side of the rear wing and the highest protrusion point relative to the horizontal plane. This effectively lengthens the length of the airflow flowing over the upper side of the vehicle rear wing before it descends, which helps to improve the low-pressure situation at the rear of the vehicle.

[0014] As described above, a vehicle rear wing has multiple fan blade assemblies, with a set distance between adjacent fan blade assemblies.

[0015] As described above, in a vehicle rear spoiler, the fan blade assembly is installed on the side of the vehicle rear spoiler away from the front of the vehicle, that is, the fan blade assembly is set close to the rear of the vehicle. After the air flows through the fan blade assembly, the pressure increases, which is beneficial to improving the low-pressure area at the rear of the vehicle.

[0016] The fan blade assembly includes a housing, a rotating shaft is disposed inside the housing, and multiple blades are arranged circumferentially on the rotating shaft.

[0017] The length of the fan blade assembly is less than the width of the vehicle rear wing. The end of the fan blade assembly near the rear of the vehicle is aligned with the end of the vehicle rear wing near the rear of the vehicle to ensure the effect of increasing air pressure.

[0018] Secondly, the present invention also provides a vehicle including the aforementioned vehicle rear wing, which is mounted above the trunk lid of the vehicle body. The side of the vehicle rear wing closer to the front of the vehicle is lower than the other side. The vehicle rear wing mounted on the trunk lid can effectively improve the low pressure condition at the rear of the vehicle and ensure the high-speed driving performance of the vehicle.

[0019] In the vehicle described above, one side of the fan blade assembly is fixed to the trunk lid of the vehicle body, and the other side is fixed to the rear wing of the vehicle.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1) This invention integrates a vehicle rear spoiler into the trunk lid. The rear spoiler has a predetermined length and is angled upwards along the length of the vehicle, with the front arc surface as the windward side. This helps to increase the air pressure on the upper side of the rear spoiler. A fan blade assembly is installed on the lower side of the rear spoiler. The fan blade assembly helps to pressurize the airflow. When the airflow passes over the rear spoiler, the airflow speed on the lower side of the rear spoiler is faster than the airflow speed on the upper side, resulting in greater pressure on the upper side than on the lower side. This provides effective negative lift for the vehicle. Moreover, the fan blade assembly increases the pressure of some airflow after passing through it, which can effectively improve the low-pressure situation at the rear of the vehicle, thereby reducing drag during vehicle operation and improving the high-speed performance of the vehicle.

[0022] 2) The present invention provides side plates on both sides of the tail wing body. The side plates are inclined downward relative to the tail wing body. The inclined downward side plates help to reduce the drag at both ends of the vehicle tail wing. Moreover, the thickness of the side plate on the side closer to the tail wing body is greater than the thickness on the other side, which helps to reduce the mass of the vehicle tail wing and also helps to reduce the wind resistance at both ends of the vehicle tail wing.

[0023] 3) In this invention, the distance between the side of the vehicle's rear wing closest to the front of the vehicle and the highest protrusion point is greater than the length of the other side, which effectively lengthens the length of the airflow flowing over the upper side of the vehicle's rear wing before it descends, thus avoiding excessive pressure on the upper side of the vehicle's rear wing near the rear of the vehicle and helping to improve the low-pressure situation at the rear of the vehicle.

[0024] 4) The present invention provides a fan blade assembly on the upper side of the vehicle's rear wing and trunk lid. The fan blade assembly not only helps to increase the pressure after the airflow passes through, but also facilitates the connection between the vehicle's rear wing and the trunk lid. The structure is reasonably designed. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of a vehicle rear spoiler mounted on a trunk lid according to one or more embodiments of the present invention.

[0027] Figure 2 This is a schematic diagram of a vehicle rear spoiler installed on a trunk lid and the trunk lid being opened, according to one or more embodiments of the present invention.

[0028] Figure 3 This is a top view of a vehicle rear spoiler mounted on a trunk lid according to one or more embodiments of the present invention.

[0029] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0030] The components are: 1. Side panel, 2. Tail wing body, 3. Fan blade assembly, 4. Luggage box lid, 5. Highest protrusion point, 6. Blade, 7. Shell. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] As described in the background section, the low-pressure area at the rear of the vehicle in the prior art still presents a problem. In order to solve the above-mentioned technical problem, the present invention proposes a vehicle rear wing and a vehicle.

[0034] Example 1

[0035] In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2As shown, a vehicle rear wing is curved in an arc shape towards the front of the vehicle. The rear wing is plate-shaped, with the center of the arc-shaped rear wing located away from the rear of the vehicle. The length of the rear wing (the projected length of the rear wing in the horizontal direction) is greater than the length of the trunk lid 4. The rear wing protrudes upward from the middle along its length and width. The distance between the highest protrusion point and the highest protrusion point 5 on the longitudinal section of the rear wing is greater on the side of the rear wing closest to the front of the vehicle than on the other side. The rear wing is inclined upward relative to the trunk lid. The width of the middle of the rear wing is smaller than the width at both ends. Several fan blade assemblies 3 are arranged on the side of the rear wing facing the trunk lid 4, and the air outlets of the fan blade assemblies 3 are oriented towards the rear of the vehicle.

[0036] To ensure consistent negative lift on both sides of the vehicle's rear wing, the highest protrusion in the middle of the rear wing is located at the center along the length of the rear wing, i.e., along the width of the vehicle, to ensure symmetry.

[0037] refer to Figure 2 As shown, the vehicle's rear wing includes an arc-shaped rear wing body 2, with side plates 1 respectively installed at both ends of the rear wing body 2. The side plates 1 are inclined downward relative to the rear wing body 2. Because the side plates 1 are installed beyond the width of the vehicle body, they generate a certain amount of resistance during vehicle operation. The inclined downward side plates 1 help to reduce the resistance at both ends of the vehicle's rear wing.

[0038] In some examples, the tilt angle of the side plate 1 relative to the tail wing body 2 is 10°-30°, and the two corners of the side plate 1 away from the tail wing body 2 are rounded; moreover, the side of the side plate 1 away from the tail wing body 2 is tilted relative to the horizontal line, that is, the side of the side plate 1 away from the tail wing body 2 is flared outward relative to the central axis of the vehicle length direction, and the angle between it and the central axis of the vehicle length direction is an acute angle.

[0039] In this embodiment, the thickness of the side plate 1 on the side closer to the tail wing body 2 is greater than the thickness on the other side. That is, the thickness of the side plate end of the vehicle tail wing is less than the thickness on the side closer to the tail wing body. This not only helps to reduce the mass of the vehicle tail wing, but also helps to reduce wind resistance.

[0040] Considering the connection between the vehicle's rear wing and the trunk lid 4, the length of the rear wing body, i.e. the projected length of the rear wing body in the direction of the trunk lid 4, is greater than the length of the trunk lid 4. The projected length of the rear wing body in the direction of the trunk lid 4 is 1-6mm longer than the length of the trunk lid 4 (in the vehicle width direction). The side plate 1 is located on the outside of the trunk lid 4, which fully ensures the pressure on the upper side of the vehicle's rear wing.

[0041] Along the width of the vehicle's rear wing, the distance between the side of the rear wing closest to the front of the vehicle and the highest protrusion point 5 is greater than the distance between the other side of the rear wing and the highest protrusion point 5. The angle of inclination of the line connecting the side of the rear wing closest to the front of the vehicle and the highest protrusion point 5 with respect to the horizontal plane is less than the angle of inclination of the line connecting the other side of the rear wing and the highest protrusion point 5 with respect to the horizontal plane. This effectively lengthens the length of the airflow flowing over the upper side of the vehicle's rear wing before it descends, which helps to improve the low-pressure area at the rear of the vehicle.

[0042] It should be explained that there are multiple fan blade assemblies 3, and the distance between two adjacent fan blade assemblies 3 is set. The specific number of fan blade assemblies 3 is determined according to the requirements. There can be three fan blade assemblies 3. One is set in the middle of the vehicle's rear wing, below the highest protrusion point 5. This fan blade assembly 3 is not necessarily set directly below the highest protrusion point. There is one fan blade assembly on each side of the middle fan blade assembly 3. The distance between one fan blade assembly and the side of the vehicle is less than the distance between the fan blade assembly and the central fan blade assembly. Of course, in other examples, the number of fan blade assemblies can also be other numbers, such as 5.

[0043] refer to Figure 2 As shown, the fan blade assembly 3 is installed on the side of the vehicle's rear wing away from the front of the vehicle, that is, the fan blade assembly 3 is installed on the side of the vehicle's rear wing close to the rear of the vehicle. The air inlet of the fan blade assembly 3 is located below the vehicle's rear wing, and the direction of the air inlet is consistent with the direction from the front of the vehicle to the rear of the vehicle. The length of the fan blade assembly 3 is less than the width of the vehicle's rear wing (the width of the vehicle's rear wing is set along the length of the vehicle). The air outlet surface of the fan blade assembly 3 can be flush with the vehicle's rear wing. The fan blade assembly 3 is set close to the rear end of the vehicle, which is beneficial to the improvement of the low pressure area at the rear of the vehicle.

[0044] In this embodiment, the central axis of the fan blade assembly is parallel to the length direction of the vehicle, and the length of the fan blade assembly (the length direction of the fan blade assembly is along the length direction of the vehicle body) is less than the width of the vehicle rear wing. The end of the fan blade assembly near the rear of the vehicle is aligned with the end of the vehicle rear wing near the rear of the vehicle. Alternatively, in other examples, the end of the fan blade assembly near the rear of the vehicle is located inside the end of the vehicle rear wing near the rear of the vehicle. In this case, the distance between the fan blade assembly and the end of the vehicle rear wing near the rear of the vehicle is less than the distance between the fan blade assembly and the end of the vehicle rear wing near the front of the vehicle.

[0045] It is easy to understand that the fan blade assembly 3 includes a housing 7, a rotating shaft is provided inside the housing 7, and multiple blades 6 are arranged circumferentially on the rotating shaft. The housing 7 can be a hollow cylinder with no end faces at both ends. One end of the cylinder forms an air inlet, and the end facing the rear of the vehicle forms an air outlet. The upper side of the cylinder structure is connected to the lower side of the rear wing body, and the lower side is connected to the trunk lid.

[0046] Moreover, the inner diameters at both ends of the cylinder are larger than the inner diameter in the middle of the cylinder, meaning that both ends of the cylinder are trumpet-shaped and the inner diameter in the middle of the cylinder is smaller than the inner diameter at the ends. This can help accelerate the airflow when it passes through the cylinder. The central axis of the cylinder is parallel to the direction of the vehicle's length central axis. It can be understood that because the vehicle's tail fin protrudes in the middle, the outer diameter of the cylinder below the middle of the vehicle's tail fin is larger than the outer diameter of the cylinders of other fan blade components.

[0047] The vehicle rear wing provided in this embodiment has a fan blade assembly 3 installed on the lower side of the vehicle rear wing. When the airflow passes over the vehicle rear wing, the airflow speed on the lower side of the vehicle rear wing is faster than the airflow speed on the upper side, resulting in greater pressure on the upper side than on the lower side. This provides effective negative lift for the vehicle. Moreover, the pressure of some airflow increases after passing through the fan blade assembly 3, which can effectively improve the low pressure situation at the rear of the vehicle. Furthermore, the vehicle rear wing is curved towards the front of the vehicle, with the entire curved surface serving as the windward surface. It is also tilted upward relative to the trunk lid of the vehicle body, further increasing the air pressure on the upper side of the vehicle rear wing. The middle part of the vehicle rear wing protrudes upward, avoiding excessive pressure on the upper side of the vehicle rear wing near the rear of the vehicle, which is beneficial to improving the low pressure situation at the rear of the vehicle.

[0048] Example 2

[0049] This embodiment provides a vehicle including the vehicle rear wing described in Embodiment 1. The vehicle rear wing is installed above the trunk lid of the vehicle body. The side of the vehicle rear wing closer to the front of the vehicle is set lower than the other side. The vehicle rear wing is installed on the trunk lid 4 of the vehicle body, which can effectively improve the low pressure situation at the rear of the vehicle and ensure the high-speed driving performance of the vehicle.

[0050] Understandably, one side of the fan blade assembly 3 is fixed to the upper side of the trunk lid 4 on the vehicle body, and the other side is fixed to the rear wing of the vehicle.

[0051] During vehicle operation, due to the structural design of the vehicle's rear wing and the fact that the fan blade assembly 3 is located on the lower side of the vehicle's rear wing, the airflow passes through the vehicle's rear wing. The airflow speed on the lower side of the vehicle's rear wing is faster than the airflow speed on the upper side, which makes the pressure on the upper side of the vehicle's rear wing greater than that on the lower side, thus providing effective negative lift for the vehicle. After a portion of the airflow passes through the fan blade assembly, the pressure increases, which can improve the low-pressure situation at the rear.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle rear wing, characterized in that, The vehicle's rear wing curves in an arc towards the front of the car. Along the width of the trunk lid, the length of the rear wing is greater than the width of the trunk lid. The rear wing protrudes upward from the middle along both its length and width. In the longitudinal section where the highest protrusion point of the rear wing is located, the distance between the side of the rear wing closest to the front of the car and the highest protrusion point is greater than the distance between the other side and the highest protrusion point. The rear wing is tilted upward relative to the trunk lid, effectively lengthening the airflow over the upper side of the rear wing before it descends, thus avoiding excessive pressure on the upper side of the rear wing near the rear of the car. The width of the middle part of the vehicle's rear wing is smaller than the width of the two ends. Several fan blade assemblies are set on the side of the vehicle's rear wing facing the trunk lid. The air outlets of the fan blade assemblies are set towards the rear of the vehicle. The length of the fan blade assembly is smaller than the width of the vehicle's rear wing. The end of the fan blade assembly near the rear of the vehicle is aligned with the end of the vehicle's rear wing near the rear of the vehicle. The fan blade assembly includes a housing, a rotating shaft inside the housing, and multiple blades arranged circumferentially on the rotating shaft. The housing is a hollow cylinder with an air inlet at one end and an air outlet at the end facing the rear of the vehicle. The inner diameter at both ends of the cylinder is larger than the inner diameter in the middle of the cylinder.

2. A vehicle rear wing according to claim 1, characterized in that, Along the length of the vehicle's rear wing, the width of the rear wing gradually increases from the middle to both ends; the highest protruding point in the middle of the vehicle's rear wing is located at the center of the vehicle's rear wing along its length.

3. A vehicle rear wing according to claim 1, characterized in that, The vehicle rear wing includes an arc-shaped rear wing body, with side plates at both ends of the rear wing body, and the side plates are inclined downward relative to the rear wing body.

4. A vehicle rear wing according to claim 3, characterized in that, The projected length of the rear wing body in the direction of the trunk lid is greater than the width of the trunk lid.

5. A vehicle rear wing according to claim 1, characterized in that, Along the width direction of the vehicle's rear wing, the angle of inclination of the line connecting the side of the rear wing closest to the front of the vehicle to the highest protrusion point relative to the horizontal plane is smaller than the angle of inclination of the line connecting the other side of the rear wing to the highest protrusion point relative to the horizontal plane.

6. A vehicle rear wing according to claim 1, characterized in that, The fan blade assembly is provided in multiple ways, and the distance between two adjacent fan blade assemblies is set.

7. A vehicle, characterized in that, The vehicle rear wing includes any one of claims 1-6, wherein the vehicle rear wing is mounted above the trunk lid of the vehicle body, and the side of the vehicle rear wing closer to the front of the vehicle is lower than the other side.

8. A vehicle according to claim 7, characterized in that, One side of the fan blade assembly is fixed to the trunk lid of the vehicle body, and the other side is fixed to the rear spoiler of the vehicle.

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