Flow guide structure, vehicle body assembly and vehicle

Abstract

The utility model relates to a flow guide structure, a vehicle body assembly and a vehicle, the flow guide structure is used for the vehicle and comprises a flow guide part used for being connected to the front end of a fender of a wheel, the flow guide part comprises a flow guide slope and a flow guide tail edge, and the flow guide part is configured to move up and down in the vertical direction so as to guide air in front of the wheel. The flow guide part is arranged at the front end of the fender of the wheel of the vehicle and can move up and down in the vertical direction, so that the position of the flow guide part relative to the wheel can be changed by moving the flow guide part up and down in the vertical direction, and the position of the flow guide part in the vertical direction can be selected according to different vehicle speeds; and meanwhile, a flow guide inclined plane and a flow guide tail edge are arranged on the flow guide piece, air in front of the wheels is guided, and therefore airflow impact borne by the wheels is reduced, and wind resistance of the whole vehicle is effectively reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of gas flow guidance of vehicle wheels, and in particular, to a flow guidance structure, a vehicle body assembly and a vehicle. Background Art

[0002] In order to guide the air passing through the wheels of a vehicle, a spoiler is usually fixed in front of the wheel. The spoiler includes a straight guide structure and a non-straight guide structure. Because it is limited to a direction perpendicular to the ground, when the vehicle is in motion, the spoiler in the related art has a poor effect in guiding the airflow. Utility Model Content

[0003] The purpose of the present disclosure is to provide a guide structure, a body assembly and a vehicle, wherein the guide structure can guide the air entering the wheels by changing the movement of the guide member and the guide slope in the vertical direction, thereby reducing the airflow impact on the wheels and effectively reducing the wind resistance of the entire vehicle, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned objectives, the first aspect of the present disclosure provides a guide structure for a vehicle, comprising: a guide member for connecting to the front end of the fender of the wheel, the guide member comprising a guide body having a guide slope and a guide trailing edge arranged at the rear end of the guide body, the guide member being configured to be able to move up and down in a vertical direction to guide the air in front of the wheel.

[0005] Optionally, the guide body includes a substrate and a guide plate arranged below the substrate, the guide plate is formed with the guide slope, and the guide plate is configured to be able to adjust the angle between the plane where the guide plate is located and the plane where the substrate is located.

[0006] Optionally, the guide trailing edge is configured as a sawtooth trailing edge.

[0007] Optionally, the guide trailing edge is configured as an arc with a middle portion convex toward the front.

[0008] Optionally, a flexible connector is provided between the guide plate and the substrate, and is used to connect the guide plate and the substrate, and is configured to be able to fold or unfold as the angle between the plane where the guide plate is located and the plane where the substrate is located changes.

[0009] Optionally, the guide structure also includes a connecting component and a driving member for driving the connecting component to extend and retract, the connecting component being connected to the substrate and the guide plate respectively, and the driving member drives the connecting component so that the guide plate moves in a vertical direction and adjusts the angle between the plane where the guide plate is located and the plane where the substrate is located.

[0010] Optionally, the connecting assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is connected to the driving member, the second end of the first connecting rod is connected to the base plate, the first end of the second connecting rod is connected to the driving member, and the second end of the second connecting rod is connected to the guide plate.

[0011] Optionally, the driving member is constructed as a double-headed motor, a first output end of the double-headed motor is connected to the first end of the first connecting rod, and a second output end of the double-headed motor is connected to the first end of the second connecting rod.

[0012] Optionally, the base plate is provided with a first guiding portion, and the first guiding portion is used to cooperate with the first matching portion of the fender so as to guide the guide member to move up and down in the vertical direction.

[0013] Optionally, the guide plate is provided with a second guide portion, and the substrate is provided with a second matching portion configured with the second guide portion, and the second guide portion cooperates with the second matching portion of the substrate to guide the guide plate to move along a preset trajectory to adjust the angle between the plane where the guide plate is located and the plane where the substrate is located.

[0014] Optionally, the first guide portion and the second guide portion are configured as a first guide groove or a first guide rail, and the first matching portion and the second matching portion are configured as a second guide rail matching with the first guide groove or a second guide groove matching with the first guide rail.

[0015] Optionally, the guide structure also includes a control unit, which is electrically connected to the driving member. The control unit is configured to control the driving member to drive the guide member to move in the vertical direction and drive the guide plate to move along a preset trajectory according to the speed of the vehicle, so as to adjust the angle between the plane where the guide plate is located and the plane where the substrate is located.

[0016] A second aspect of the present disclosure provides a vehicle body assembly, including a fender and the above-mentioned guide structure.

[0017] A third aspect of the present disclosure provides a vehicle, comprising the above-mentioned body assembly.

[0018] Through the above technical scheme, a deflector is provided at the front end of the fender of the wheel of the vehicle, and the deflector is configured to be able to move up and down in the vertical direction, so that the deflector can move up and down in the vertical direction to change the relative position of the deflector and the wheel, so that the position of the deflector in the vertical direction can be selected according to different vehicle speeds, and at the same time, the deflector body and the deflector trailing edge with a deflector slope on the deflector are used to guide the air in front of the wheel, thereby reducing the airflow impact on the wheel and effectively reducing the wind resistance of the whole vehicle.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 is a perspective schematic diagram of the assembly of a fender and a guide structure provided in an exemplary embodiment of the present disclosure;

[0022] Figure 2 is a bottom view schematic diagram of the assembly of a fender and a guide structure provided in an exemplary embodiment of the present disclosure;

[0023] Figure 3 is a schematic diagram of a first position of a flow guide structure provided in an exemplary embodiment of the present disclosure;

[0024] Figure 4 is a schematic diagram of a second position of a flow guide structure provided in an exemplary embodiment of the present disclosure;

[0025] Figure 5 is a schematic diagram of a third position of the guide structure provided in an exemplary embodiment of the present disclosure.

[0026] Description of Reference Numerals

[0027] 1-flow guide; 10-flow guide body; 11-base plate; 111-second matching part; 12-flow guide plate; 121-second guide part; 13-first guide part; 2-flow guide slope; 3-flow guide trailing edge; 4-flexible connector; 5-connecting assembly; 51-first connecting rod; 52-second connecting rod; 6-driving member; 7-mudguard; 71-first matching part; 8-control unit. DETAILED DESCRIPTION

[0028] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0029] In this disclosure, unless otherwise stated, the directional words used, such as "up, down, left, right, front, and back", are the same as those used for vehicles. Figure 1 In the “up and down direction, left and right direction, front and back direction”, the airflow direction is Figure 3 , Figure 4 , Figure 5The solid arrow in the figure indicates the direction. "Inside" and "outside" refer to the outline of the part itself. In addition, it should be noted that the terms used, such as "first" and "second", are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0030] like Figure 1-Figure 5 As shown, the first aspect of the present disclosure provides a guide structure for a vehicle, the vehicle comprising a wheel and a fender 7 arranged in front of the wheel, the guide structure comprising: a guide member 1, the guide member 1 is connected to the front end of the fender 7 of the wheel, the guide member 1 comprises a guide body 10 having a guide slope 2 and a guide trailing edge 3 arranged at the rear end of the guide body 10, the guide member 1 is configured to be able to move up and down in a vertical direction to guide the air in front of the wheel.

[0031] Through the above technical scheme, by arranging a deflector 1 at the front end of the fender 7 of the wheel of the vehicle, the deflector 1 is configured to be able to move up and down in the vertical direction, so that the deflector 1 can move up and down in the vertical direction to change the relative position of the deflector 1 and the wheel, so that the position of the deflector 1 can be selected according to different vehicle speeds, and at the same time, the deflector 1 is provided with a deflector body 10 with a deflector slope 2 and a deflector trailing edge 3 to guide the air in front of the wheel, reduce the airflow impact on the wheel, and effectively reduce the wind resistance of the whole vehicle.

[0032] It can be understood that the guide member 1 moves up and down along the vertical direction, wherein the vertical direction can refer to Figure 1 In the up and down direction of the vehicle, the guide member 1 can be moved up and down in the vertical direction to change the vertical position between the guide member 1 and the wheel, so that the air flow in front of the wheel can be changed according to different vehicle speeds through the position of the guide member 1 and the guide slope 2 and the guide trailing edge 3, thereby reducing the airflow impact on the wheel and effectively reducing the wind resistance of the whole vehicle.

[0033] In some embodied embodiments, the deflector 1 includes a base plate 11 and a deflector plate 12 disposed below the base plate 11. Both the base plate 11 and the deflector plate 12 may be steel plates. The deflector plate 12 is formed with a deflector slope 2. The deflector slope 2 is configured to be able to adjust the angle between the plane where the deflector plate 12 is located and the plane where the base plate 11 is located, wherein the deflector slope 2 gradually decreases from front to rear in the front-to-rear direction, that is, the front position is at a rear position at a height in the up-down direction, and the front edge of the deflector plate 12 is connected to the base plate 11. The deflector plate 12 can rotate relative to the base plate 11 in the up-down direction with the front edge as the rotation axis, thereby being able to change the angle between the plane where the deflector plate 12 is located and the plane where the base plate 11 is located, and different angles between the plane where the deflector plate 12 is located and the plane where the base plate 11 is located are selected according to different vehicle speeds, so as to further guide the air in front of the wheel, reduce the impact on the wheel, and reduce the wind resistance of the entire vehicle.

[0034] It can be understood that the above-mentioned structure in which the guide plate 12 can rotate in the up and down directions relative to the base plate 11 with the front side as the rotation axis, so as to change the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located is schematic. In other embodiments, the guide plate 12 can also rotate with any position of the guide plate 12 in the front and rear directions as the axis, so as to change the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located.

[0035] In some feasible embodiments, a flexible connector 4 is provided between the guide plate 12 and the substrate 11, and the flexible connector 4 is used to connect the guide plate 12 and the substrate 11. The flexible connector 4 may be a corrugated rubber belt, and the corrugated rubber belt can be folded or unfolded as the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located changes. For example, when the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located is required to be the largest, the corrugated rubber belt is fully unfolded; when the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located is required to be the smallest, the corrugated rubber belt is fully folded, so that the guide plate 12 and the substrate 11 can be easily connected by the provision of the flexible connector 4.

[0036] In order to facilitate the diversion of the air in front of the wheel, in some feasible embodiments, the guide trailing edge 3 is constructed as a serrated trailing edge, and the serrations can be arranged at the lower end of the substrate 11 along the left-right direction. The serrations can be triangular teeth arranged alternately, thereby changing the direction of air flow in front of the wheel, allowing part of the air to bypass the wheel, thereby reducing the impact on the wheel and reducing the wind resistance of the entire vehicle.

[0037] In addition, in order to further facilitate the diversion of the air in front of the wheel, the diversion trailing edge 3 is constructed as an arc with a middle portion convex forward. The arc convex forward setting enables the air in the middle to flow toward the edge after contacting the diversion trailing edge 3, thereby enabling more air to bypass the wheel, further reducing the impact on the wheel and reducing the wind resistance of the vehicle. It is understandable that the middle portion convexity of the diversion trailing edge 3 can be set to a corresponding size according to the specific vehicle model, and the present disclosure does not make a specific limitation.

[0038] In order to facilitate the guide member 1 to move up and down in the vertical direction and adjust the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located, in some feasible embodiments, the guide structure also includes a connecting component 5 and a driving component 6 that drives the connecting component 5 to extend and retract. The connecting component 5 is respectively connected to the substrate 11 and the guide plate 12, and the driving component 6 drives the connecting component 5 so that the guide member 1 moves in the vertical direction and adjusts the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located. Specifically, the connecting assembly 5 includes a first connecting rod 51 and a second connecting rod 52. The first end of the first connecting rod 51 is connected to the driving member 6, and the second end of the first connecting rod 51 is connected to the base plate 11. The first end of the second connecting rod 52 is connected to the driving member 6, and the second end of the second connecting rod 52 is connected to the guide plate 12. In this way, the up and down movement of the first connecting rod 51 is adjusted by the driving member 6 to drive the base plate 11 in the guide member 1 to move up and down in the vertical direction, thereby changing the position of the guide member 1 in the vertical direction, so as to change the air flow direction in front of the wheel, so that part of the air bypasses the wheel, thereby reducing the impact on the wheel. The up and down movement of the second connecting rod 52 can also be adjusted by the driving member 6, thereby driving the change in the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located, guiding the air in front of the wheel, so that part of the air bypasses the wheel, thereby reducing the impact on the wheel.

[0039] In order to facilitate the adjustment of the guide member 1 to move up and down in the vertical direction and adjust the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located, in some feasible methods, the driving member 6 is constructed as a double-headed motor, and the first output end of the double-headed motor is connected to the first end of the first connecting rod 51, and the second output end of the double-headed motor is connected to the first end of the second connecting rod 52. The first connecting rod 51 includes a first support rod and a second support rod. The adjacent ends of the first support rod and the second support rod are hingedly connected, and the outer end of the first support rod is connected to the first output end of the double-headed motor, and the outer end of the second support rod is hingedly connected to the base plate 11. Therefore, when the first output end of the double-headed motor rotates forward, it drives the first support rod in the first connecting rod 51 to swing upward, thereby driving the second support rod and the base plate 11 to move upward as a whole, so that it can be located in the vertical direction according to different vehicle speeds. To the corresponding position, thereby guiding the air in front of the wheel and reducing the impact on the wheel. In addition, the second connecting rod 52 includes a third support rod and a fourth support rod. The adjacent ends of the third support rod and the fourth support rod are hingedly connected. The outer end of the third support rod is hingedly connected to the second output end of the double-headed motor, and the outer end of the fourth support rod is hingedly connected to the guide plate 12. The front end of the guide plate 12 is hingedly connected to the base plate 11. The second output end of the double-headed motor rotates forward, driving the third support rod in the second connecting rod 52 to swing upward, thereby driving the fourth support rod to retract upward, so that the guide plate 12 can relatively change the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located around the front end of the guide plate 12, thereby guiding the air in front of the wheel, allowing part of the air to bypass the wheel, thereby reducing the impact on the wheel.

[0040] It can be understood that the above-mentioned driving member 6 is constructed as a double-headed motor for schematic purposes. In other embodiments, the driving member 6 may also include two relatively arranged motors, which may be a first motor and a second motor, wherein the first motor is used to cooperate with the first connecting rod 51, and the second motor is used to cooperate with the second connecting rod 52, so that the first motor drives the first connecting rod 51 to extend and retract, thereby changing the upper and lower positions of the guide member 1 in the vertical direction, and the second motor drives the second connecting rod 52 to extend and retract, thereby adjusting the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located, thereby facilitating the diversion of air in front of the wheel at different vehicle speeds.

[0041] In some other feasible embodiments, the driving member 6 can also be configured as a cylinder, and the first connecting rod 51 and the second connecting rod 52 can both be configured as the first telescopic rod and the second telescopic rod which can be extended and retracted by themselves. The first telescopic rod is driven to be extended and retracted by the cylinder, thereby changing the vertical position of the guide member 1. The second telescopic rod is driven to be extended and retracted by the cylinder, thereby adjusting the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located, thereby facilitating the diversion of the air in front of the wheel at different vehicle speeds.

[0042] In order to facilitate the upward and downward movement of the air guide member 1 in the vertical direction, in some feasible embodiments, a first guide portion 13 is provided on the base plate 11, and there are two first guide portions 13, which can be respectively arranged on the two side edges of the base plate 11 in the left and right directions. The side walls of the fender 7 opposite to the first guide portion 13 are respectively provided with first matching portions 71 matching with the first guide portion 13. For example, the first guide portion 13 can be a first guide rail, and the first matching portion 71 can be a second guide groove matching with the first guide rail. The first guide rail and the second guide groove extend in the vertical direction respectively, so that the driving member 6 is constructed as a double-headed motor, and the first output end of the double-headed motor rotates to drive the first connecting rod 51 to extend and retract, thereby driving the first guide rail on the base plate 11 of the air guide member 1 to move up and down in the vertical direction along the second guide groove on the fender 7, so that the air guide member 1 can change its position in the vertical direction to adapt to different vehicle speeds, thereby facilitating the diversion of air in front of the wheel at different vehicle speeds, reducing the impact on the wheel, reducing the wind resistance of the whole vehicle, and increasing the endurance of the whole vehicle.

[0043] In order to facilitate the adjustment of the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located, in some practicable ways, a second guide portion 121 is provided on the guide plate 12, and the number of the second guide portions 121 is two and they are respectively arranged on the edges of the guide plate 12 in the left and right directions close to the first guide portion 13, and the side walls of the base plate 11 opposite to the second guide portion 121 are respectively provided with second matching portions 111 matching with the second guide portion 121. For example, the second guide portion 121 can be configured as a first guide groove, and the second matching portion 111 can be configured as a second guide rail matching with the first guide groove, so that the driving member 6 is configured as a double-headed motor, and the second output end of the double-headed motor rotates to drive the second connecting rod 52 along the vertical direction The guide plate 12 moves up and down, the front end of the guide plate 12 is connected to the base plate 11, the second guide portion 121 is arranged at the rear end of the guide plate 12, and the second connecting rod 52 moves up and down to drive the flexible connection member 4 between the guide plate 12 and the base plate 11 to unfold or fold, so that the first guide groove at the rear end of the guide plate 12 can move along the second guide rail on the base plate 11, so that the guide plate 12 can rotate along the edge around the front end connected to the base plate 11 as the axis, thereby changing the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located, so as to adapt to different vehicle speeds, thereby facilitating the diversion of air in front of the wheel at different vehicle speeds, reducing the impact on the wheel, reducing the wind resistance of the whole vehicle, and increasing the endurance of the whole vehicle.

[0044] It can be understood that the above-mentioned first guide portion 13 is configured as a first guide rail and the first matching portion 71 is configured as a second guide groove that matches with the first guide rail, the second guide portion 121 is configured as a first guide groove and the second matching portion 111 is configured as a second guide rail that matches with the first guide groove is schematic. In other embodiments, the first guide portion 13 can also be configured as a second guide groove, the first matching portion 71 can be configured as a first guide rail that matches with the second guide groove, the second guide portion 121 can be configured as a second guide rail, and the second matching portion 111 can be configured as a first guide groove that matches with the second guide rail.

[0045] In order to facilitate the control of the driving member 6 to adjust the position of the guide member 1 in the vertical direction and adjust the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located, in some practicable ways, the guide structure also includes a control unit 8, the control unit 8 is electrically connected to the driving member 6, the control unit 8 may include a vehicle speed sensor and a controller, the driving member 6 may be a double-headed motor, the vehicle speed sensor and the double-headed motor are respectively connected to the controller signal, and the controller can control the double-headed motor to drive the displacement of the guide member 1 in the vertical direction and control the guide plate 12 to move along a preset trajectory according to the vehicle speed to adjust the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located. It can be understood that the controller can be any one of a separate PLC controller, a single-chip microcomputer or a vehicle control platform, and the controller can be connected to the vehicle speed sensor and the double-headed motor signal respectively in a wired or wireless manner.

[0046] Specifically, when the vehicle speed is greater than 60 km / h, the vehicle speed is high, the contribution of air resistance to the vehicle resistance increases significantly and dominates, and the drag reduction effect of the guide structure is significant. At this time, Figure 3 As shown, the airflow direction is Figure 3 In the direction indicated by the solid arrow, the vehicle speed sensor detects a higher speed, and the controller controls the double-headed motor to move in high-speed mode, that is, the first output end of the double-headed motor is controlled to move the first connecting rod 51 downward and extend, and the guide member 1 is adjusted to the lowest point, and the second output end of the double-headed motor is controlled to move the second connecting rod 52 downward and extend, and the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located is adjusted to the maximum. At this time, the flexible connector 4 is fully unfolded. At this time, the bottom airflow passes through the guide slope smoothly from the bottom of the front bumper to the serrated trailing edge, and guides the airflow obliquely downward to avoid the airflow directly impacting the guide member 1 main body and the wheel, thereby improving the airflow flow state, reducing the high-pressure area in front of the wheel and the airflow separation after passing through the guide member 1, reducing the vehicle resistance under high-speed conditions, and increasing the vehicle endurance.

[0047] When the vehicle speed is less than 60km / h but greater than 30km / h, the speed is reduced and the contribution of wind resistance to the vehicle resistance is reduced. Figure 4As shown, the airflow direction is Figure 4 In the direction indicated by the solid arrow, the vehicle speed sensor detects that the speed is moderate, and the controller controls the double-headed motor to move in the medium-speed mode, that is, the first output end of the double-headed motor is controlled to move the first connecting rod 51 downward and extend, and the guide member 1 is adjusted to the lowest point, and the second output end of the double-headed motor is controlled to move the second connecting rod 52 upward and contract, and the angle between the plane where the guide plate 12 is located and the plane where the substrate 11 is located is adjusted to the minimum. At this time, the flexible connector 4 is completely folded. At this time, the bottom airflow flows smoothly from the lower part of the front bumper to the guide member 1. Due to the reduction in vehicle speed, the energy loss of the airflow after passing through the guide slope of the guide plate 12 is large, and the guiding effect of the guide slope 2 downward is weakened. The incoming flow intersects with the low-speed airflow in the wheel cavity, causing the airflow around the wheel to be chaotic, affecting the bottom aerodynamic performance. At this time, the guide plate 12 is controlled to be retracted through the second output end of the double-headed motor, and the guide slope on the guide plate 12 guides the gas to the inside, reducing the intersection of the incoming flow with the airflow in the wheel cavity, and at the same time accelerating the bottom airflow speed, significantly improving the bottom aerodynamic performance.

[0048] When the vehicle speed is less than 30 km / h, the contribution of aerodynamic drag to the vehicle resistance is further reduced, and the direct impact of airflow on the wheels is significantly reduced. Figure 5 As shown, the airflow direction is Figure 5 In the direction indicated by the solid arrow, the vehicle speed sensor detects a low speed, and the controller controls the double-headed motor to move in a low-speed mode, that is, controls the first output end of the double-headed motor to move the first connecting rod 51 upward and retract to the middle position, adjusts the deflector 1 to the middle position, controls the second output end of the double-headed motor to move the second connecting rod 52 upward and retract, and adjusts the angle between the plane where the deflector 12 is located and the plane where the base plate 11 is located to the minimum. At this time, the flexible connector 4 is completely folded. At this time, the bottom airflow flows through the lower surface of the front bumper and flows through the serrated trailing edge. The serrated trailing edge produces a slight deviation on the airflow, and the vehicle's positive projection area is reduced. The combination of the two can effectively reduce the wind resistance under low-speed conditions. In addition, when suddenly encountering a bumpy road section, the vehicle speed drops rapidly, and the retraction of the deflector 1 also reduces the damage to the deflector structure.

[0049] It can be understood that the vehicle speed of the above-mentioned vehicle being greater than 60km / h, less than 60km / h but greater than 30km / h, and less than 30km / h is merely illustrative, and in other embodiments, the vehicle speed may also be other values, which is not limited in the present disclosure.

[0050] In addition, according to the road condition information, a camera can be added to the vehicle to obtain road condition information through the camera. The camera is connected to the controller signal. If it is determined that the road ahead is a long off-road section, the controller controls the first output end of the double-headed motor to move the first connecting rod 51 upward and retract to the highest position. At this time, the angle between the plane where the guide plate 12 is located and the plane where the base plate 11 is located is adjusted to the minimum, the flexible connector 4 is completely folded, and the guide member 1 is located at the highest position, thereby ensuring that there is sufficient clearance between the guide structure and the ground, avoiding damage to the guide structure due to sudden changes in terrain. At the same time, the vehicle speed is low under off-road conditions, the contribution of air resistance to the resistance of the entire vehicle is reduced, and the contribution of the guide structure to drag reduction is small. Therefore, the effect of the guide structure being completely folded on the wind resistance of the entire vehicle is very weak.

[0051] The second aspect of the present disclosure provides a vehicle body assembly, including a fender and the above-mentioned air guide structure. By arranging an air guide 1 at the front end of the fender 7 of the vehicle wheel, the air guide 1 is configured to be able to move up and down in the vertical direction, so that the air guide 1 can be moved up and down in the vertical direction to change the relative position of the air guide 1 and the wheel, so that the position of the air guide 1 can be selected according to different vehicle speeds, and at the same time, the air guide slope 2 and the air guide trailing edge 3 are arranged on the air guide 1 to guide the air in front of the wheel, reduce the airflow impact on the wheel, and effectively reduce the wind resistance of the whole vehicle.

[0052] The third aspect of the present disclosure provides a vehicle, comprising the above-mentioned body assembly. It is understandable that the above-mentioned vehicle may be a pure electric vehicle or a hybrid vehicle or any other suitable vehicle having the above-mentioned body assembly, and the above-mentioned body assembly can reduce the airflow impact on the wheels, effectively reduce the wind resistance of the whole vehicle, and improve the vehicle's endurance.

[0053] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0055] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A flow guide structure for a vehicle, characterized in that: include: The deflector is used to be connected to the front end of the fender of the wheel. The deflector includes a deflector body with a deflector slope and a deflector trailing edge arranged at the rear end of the deflector body. The deflector is configured to be able to move up and down in the vertical direction to guide the air in front of the wheel.

2. The flow guiding structure according to claim 1, characterized in that: The guide body includes a base plate and a guide plate arranged below the base plate, the guide plate is formed with the guide slope, and the guide plate is configured to be able to adjust the angle between the plane where the guide plate is located and the plane where the base plate is located.

3. The flow guiding structure according to claim 2, characterized in that: The guide trailing edge is configured as a sawtooth trailing edge.

4. The flow guiding structure according to claim 3, characterized in that: The guide trailing edge is constructed in an arc shape with a middle portion convex toward the front.

5. The flow guiding structure according to any one of claims 2 to 4, characterized in that: A flexible connector is provided between the guide plate and the substrate, and is used to connect the guide plate and the substrate, and is configured to be able to fold or unfold as the angle between the plane where the guide plate is located and the plane where the substrate is located changes.

6. The flow guiding structure according to claim 5, characterized in that: The guide structure also includes a connecting component and a driving member that drives the connecting component to extend and retract. The connecting component is respectively connected to the substrate and the guide plate. The driving member drives the connecting component so that the guide plate moves in a vertical direction and adjusts the angle between the plane where the guide plate is located and the plane where the substrate is located.

7. The flow guiding structure according to claim 6, characterized in that: The connecting assembly includes a first connecting rod and a second connecting rod, wherein the first end of the first connecting rod is connected to the driving member, and the second end of the first connecting rod is connected to the base plate, the first end of the second connecting rod is connected to the driving member, and the second end of the second connecting rod is connected to the guide plate.

8. The flow guiding structure according to claim 7, characterized in that: The driving member is constructed as a double-headed motor, a first output end of the double-headed motor is connected to the first end of the first connecting rod, and a second output end of the double-headed motor is connected to the first end of the second connecting rod.

9. The flow guiding structure according to claim 5, characterized in that: The base plate is provided with a first guiding portion, and the first guiding portion is used to cooperate with the first matching portion of the fender so as to guide the deflector to move up and down in the vertical direction.

10. The flow guiding structure according to claim 9, characterized in that: The guide plate is provided with a second guide portion, and the substrate is provided with a second matching portion configured with the second guide portion, and the second guide portion cooperates with the second matching portion of the substrate to guide the guide plate to move along a preset trajectory and adjust the angle between the plane where the guide plate is located and the plane where the substrate is located.

11. The flow guiding structure according to claim 10, characterized in that: The first guide portion and the second guide portion are configured as a first guide groove or a first guide rail, and the first matching portion and the second matching portion are configured as a second guide rail matched with the first guide groove or a second guide groove matched with the first guide rail.

12. The flow guiding structure according to claim 6, characterized in that: The guide structure also includes a control unit, which is electrically connected to the driving member. The control unit is configured to control the displacement of the guide member driven by the driving member in the vertical direction and drive the guide plate to move along a preset trajectory to adjust the angle between the plane where the guide plate is located and the plane where the substrate is located according to the speed of the vehicle.

13. A vehicle body assembly, characterized in that: It comprises a fender and a flow guiding structure as described in any one of claims 1 to 12.

14. A vehicle, characterized in that: Includes the vehicle body assembly described in claim 13.

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