Vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses a vehicle which comprises a vehicle body and a rear bumper, the rear bumper is installed at the tail end of the vehicle body, the vehicle further comprises a flow guide mechanism, and the flow guide mechanism comprises a flow guide piece arranged on the side, back to the vehicle body, of the rear bumper. The flow guide part is movably connected to the vehicle body and provided with a first position close to the rear bumper and a second position away from the rear bumper. When the flow guide part is located at the second position, a downward pressing gap is formed between the flow guide part and the rear bumper. According to the vehicle provided by the utility model, the guide piece cannot shield the sight of a driver, so that the potential safety hazard of vehicle driving is eliminated, and the safety of vehicle driving is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle. Background Art

[0002] When a vehicle is driving on the road, it will be affected by the force of air. Under normal circumstances, the force of air on the vehicle can be decomposed into forces and moments in three directions, namely lift, drag, lateral force, pitching moment, yaw moment and roll moment. When the vehicle is driving normally and there is no obvious crosswind, the lateral force, yaw moment and roll moment can be almost ignored. Therefore, in the field of vehicle aerodynamics, the forces of air acting on the vehicle that are most concerned are lift, drag and pitching moment. Drag has a great impact on the energy consumption of the vehicle, especially for new energy vehicles. But in fact, in addition to drag, lift and pitching moment are equally important to the vehicle. Unreasonable aerodynamic design will cause the vehicle to generate positive lift and head-down moment when driving. Positive lift will reduce the vehicle's adhesion to the ground and reduce the vehicle's driving stability, commonly known as "floating"; pitching moment will reduce the adhesion of the rear wheels and increase the load on the front wheels, which will not only reduce the stability of the vehicle, but also reduce the braking performance of the vehicle. In order to solve the problem of positive lift and pitch moment of the vehicle, the tail wing came into being.

[0003] A rear wing refers to an aerodynamic device that can generate downforce when a vehicle is traveling at high speed. In the prior art, a rear wing is usually installed on the trunk lid at the rear of the vehicle, and when the trunk is in a closed state, the rear wing is usually located above the trunk lid, resulting in the driver needing to observe the condition of the vehicle behind the vehicle through the rearview mirror, the rear wing will block part of the line of sight, thereby causing a safety hazard to the vehicle.

[0004] Therefore, a safer vehicle is urgently needed. Utility Model Content

[0005] The utility model aims to provide a vehicle, wherein the flow guide member will not block the driver's sight, thereby reducing the potential safety hazard of vehicle driving.

[0006] As conceived above, the technical solution adopted by the utility model is:

[0007] A vehicle, comprising a vehicle body and a rear bumper, wherein the rear bumper is mounted at the rear end of the vehicle body, and the vehicle further comprises a flow guide mechanism, wherein the flow guide mechanism comprises a flow guide member disposed on a side of the rear bumper facing away from the vehicle body, the flow guide member is movably connected to the vehicle body, and the flow guide member has a first position close to the rear bumper and a second position away from the rear bumper;

[0008] When the air guide is located at the second position, a downward pressure gap is formed between the air guide and the rear bumper.

[0009] Optionally, the vehicle further includes a chassis, and when the deflector is located at the second position, the lowest point of the deflector in the height direction of the vehicle body is always higher than the lower surface of the chassis.

[0010] Optionally, the rear bumper is provided with a receiving groove, and when the deflector is located at the first position, the deflector is located in the receiving groove.

[0011] Optionally, when the deflector is located at the first position, the side of the deflector facing away from the vehicle body smoothly transitions to the outer side of the rear bumper; or,

[0012] When the deflector is located at the first position, the side of the deflector facing the vehicle body contacts the outer side surface of the rear bumper.

[0013] Optionally, the vehicle further includes a flow guide mechanism and a driving mechanism, wherein the driving mechanism is disposed on the vehicle body and is transmission-connected to the flow guide member, and the driving mechanism can drive the flow guide member to move between the first position and the second position relative to the vehicle body.

[0014] Optionally, the driving mechanism includes a driving component and a linkage component, the driving component is arranged on the vehicle body, the linkage component is movably arranged on the vehicle body, and the driving component, the linkage component and the guide member are sequentially connected in transmission.

[0015] Optionally, the linkage assembly includes a connecting member and a transmission member, one end of the connecting member is hinged to the driving assembly, and the other end is hinged to one end of the transmission member, the middle part of the transmission member is hinged to the vehicle body, and the other end of the transmission member is hinged to the guide member.

[0016] Optionally, the linkage assembly also includes a first follower, one end of which is hinged to the vehicle body, and the other end is hinged to the guide member, and the hinge position of the transmission member and the guide member is spaced apart from the hinge position of the first follower and the guide member in the width direction of the guide member.

[0017] Optionally, a first support member is provided on a surface of the deflector facing the vehicle body, a strip hole is provided in the rear bumper, and the first support member passes through the strip hole and is hinged to an end of the transmission member away from the connecting member.

[0018] Optionally, the vehicle further comprises a second follower, the second follower and the driving mechanism are spaced apart in the length direction of the guide member, one end of the second follower is hinged to the vehicle body, and the other end is hinged to the guide member.

[0019] The vehicle provided by the utility model has at least the following beneficial effects:

[0020] The deflector is movably connected to the vehicle body and has a first position close to the rear bumper and a second position away from the rear bumper. A downward pressure gap is formed between the deflector located at the second position and the rear bumper. When airflow flows through the downward pressure gap, it can give downward pressure to the vehicle body to improve the adhesion of the vehicle to the ground and the adhesion of the rear wheels to the ground, thereby reducing the load on the front wheels, improving the driving stability of the vehicle, and ensuring the braking performance and safety of the vehicle. The deflector is arranged on the side of the rear bumper facing away from the vehicle body, that is, the deflector is a downward structure, so that the deflector will not block the driver's line of sight, eliminating the safety hazard of vehicle driving and improving the safety of vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the flow guide provided by the embodiment of the utility model when it is in a closed state;

[0023] Figure 2 This is a schematic diagram of the flow guide provided by the embodiment of the utility model in the open state. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the flow guide provided by the embodiment of the utility model in the open state. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the assembly of the guide member and the drive mechanism provided in the embodiment of the utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the assembly of the guide member and the drive mechanism provided in the embodiment of the utility model. Figure 2 ;

[0027] Figure 6 This is a schematic diagram of the assembly of the guide member and the drive mechanism provided in the embodiment of the utility model. Figure 3 ;

[0028] Figure 7 This utility model Figure 3An enlarged schematic diagram of point A is shown.

[0029] In the figure:

[0030] 1. Vehicle body; 11. First fixing member; 12. Second fixing member; 2. Rear bumper; 21. Accommodating groove; 22. Strip hole; 3. Guide member; 30. Downward pressure gap; 31. First support member; 32. Second support member; 33. Third driving member; 4. Driving mechanism; 41. Driving member; 42. Screw nut structure; 43. Linkage assembly; 431. Connecting member; 432. Transmission member; 44. Slider; 5. Second driven member; 6. Chassis. DETAILED DESCRIPTION

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] Embodiment 1

[0037] This embodiment provides a vehicle that does not block the driver's sight and reduces safety hazards during vehicle driving.

[0038] like Figures 1 to 7 As shown, the vehicle includes a vehicle body 1, a rear bumper 2 and a guide mechanism. The rear bumper 2 is installed at the rear end of the vehicle body 1, specifically located below the trunk lid. The rear bumper 2 is used to buffer the impact force when the vehicle collides with other objects.

[0039] The air guide mechanism is arranged on the side of the rear bumper 2 facing away from the vehicle body 1, and the air guide mechanism includes an air guide member 3 arranged adjacent to the rear bumper 2. The air guide member 3 is movably connected to the vehicle body 1, and the air guide member 3 has a first position close to the rear bumper 2 and a second position away from the rear bumper 2. Figure 1 is a schematic diagram when the guide member 3 is located at the first position, Figure 2 It is a schematic diagram when the guide member 3 is located at the second position.

[0040] like Figure 2 As shown, when the guide member 3 is located at the second position, a downward pressure gap 30 is formed between the guide member 3 and the rear bumper 2. When the airflow flows through the downward pressure gap 30, it will give downward pressure to the guide member 3. The guide member 3 is connected to the vehicle body 1 so as to be able to give downward pressure to the vehicle body 1, thereby resisting the positive lift and pitch moment when the vehicle is driving, enhancing the vehicle's adhesion to the ground, and improving the vehicle's driving stability.

[0041] In the vehicle provided in this embodiment, the deflector 3 is movably connected to the vehicle body 1 and has a first position close to the rear bumper 2 and a second position away from the rear bumper 2. A downward pressure gap 30 is formed between the deflector located at the second position and the rear bumper 2. When the airflow flows through the downward pressure gap 30, it can give downward pressure to the vehicle body 1 to improve the adhesion of the vehicle to the ground and the adhesion of the rear wheels to the ground, thereby reducing the load on the front wheels, improving the driving stability of the vehicle, and ensuring the braking performance of the vehicle and the safety of the vehicle. The deflector 3 is arranged on the side of the rear bumper 2 facing away from the vehicle body 1, that is, the deflector 3 is a downward structure, so that the deflector 3 will not block the driver's line of sight, eliminating the safety hazard of vehicle driving and improving the safety of vehicle driving.

[0042] In some optional embodiments, the vehicle body 1 may further include a frame, a rear subframe and a longitudinal beam. The relative position relationship and connection relationship of the frame, the rear subframe and the longitudinal beam can be referred to in the prior art, and this embodiment will not be described in detail.

[0043] Optional, such as Figure 3 As shown, the rear bumper 2 is provided with a receiving groove 21. When the deflector 3 is located at the first position, as shown in FIG. Figure 1 As shown, the deflector 3 is located in the accommodating groove 21. The deflector 3 is accommodated by the accommodating groove 21. On the one hand, it is convenient to accommodate the deflector 3. On the other hand, when the deflector 3 is located in the first position, the deflector 3 can have a smaller windward area, so that the deflector 3 will not increase the resistance of the vehicle too much.

[0044] It should be noted that when the guide member 3 is located in the storage groove 21, the airflow cannot flow through the inner side of the guide member 3, but flows through the outer side of the guide member 3. At this time, the guide member 3 will not give downward pressure to the vehicle body 1, that is, the guide member 3 does not work.

[0045] In some optional embodiments, please continue to see Figure 1 When the deflector 3 is in the first position, the side of the deflector 3 facing away from the vehicle body 1 smoothly transitions to the outer side of the rear bumper 2. On the one hand, when the deflector 3 is in the first position, the windward area of ​​the vehicle will not be increased additionally, and the air resistance of the vehicle during driving will not be increased additionally, thereby not increasing the energy consumption of the vehicle additionally. On the other hand, the vehicle has a smoother appearance when the deflector 3 is in the first position.

[0046] In some optional embodiments, see Figure 2 The vehicle further includes a chassis 6, which is arranged at the bottom of the vehicle body 1. The lowest point of the air guide 3 in the height direction of the vehicle body 1 is always higher than the lower surface of the chassis 6, so that the arrangement of the air guide 3 does not increase the windward area of ​​the vehicle, has very little effect on the air resistance of the vehicle, and hardly increases the energy consumption of the vehicle.

[0047] Alternatively, if Figure 3 As shown, the vehicle further includes a driving mechanism 4. The driving mechanism 4 is disposed on the vehicle body 1. The driving mechanism 4 is in transmission connection with the flow guide 3, and the driving mechanism 4 can drive the flow guide 3 to move between a first position and a second position relative to the vehicle body 1, thereby realizing automatic driving of the flow guide 3 without manual movement, and having a high degree of automation.

[0048] In some optional embodiments, the driving mechanism 4 is configured to: based on the obtained folding instruction, drive the air guide 3 to approach the rear bumper 2 so that the air guide 3 is folded to a first position relative to the rear bumper 2; based on the obtained deployment instruction, drive the air guide 3 away from the rear bumper 2 so that the air guide 3 is deployed to a second position relative to the rear bumper 2, thereby realizing the automation of the folding and deployment of the air guide 3 relative to the rear bumper 2, and also enabling the air guide 3 to be deployed when needed.

[0049] For example, the folding instruction and the unfolding instruction can be obtained by a controller, and the controller controls the driving mechanism 4 to start or shut down. The controller can be a central controller of the vehicle.

[0050] Further optionally, when the vehicle speed is lower than the set speed, the folding instruction is triggered, and when the vehicle speed is not lower than the set speed, the unfolding instruction is triggered; and / or, when the control button is not pressed, the folding instruction is triggered, and when the control button is pressed, the unfolding instruction is triggered. It can be seen that the folding instruction and the unfolding instruction can be triggered only automatically or manually through the control button, and the folding instruction and the unfolding instruction can be triggered automatically or manually through the control button, which has rich functions and a wide range of applications. For example, the set speed can be 60 km / h, 65 km / h or 70 km / h.

[0051] Alternatively, if Figure 4 As shown, the driving mechanism 4 includes a driving component (not shown) and a linkage component 43. The driving component is arranged on the vehicle body 1, and the linkage component 43 is movably arranged on the vehicle body 1. The driving component, the linkage component 43, and the guide member 3 are sequentially connected in transmission, and the driving component can drive the linkage component 43 to move, and the guide member 3 is driven to move between the first position and the second position through the linkage component 43. For example, the driving component can be a motor, a cylinder, an electric cylinder, a hydraulic cylinder, etc., which is not limited in this embodiment.

[0052] Further optionally, the driving assembly includes a driving member 41 and a screw nut structure 42. The screw of the screw nut structure 42 is fixedly connected to the output end of the driving member 41, and the nut of the screw nut structure 42 is transmission-connected to the linkage assembly 43. The driving member 41 drives the screw to rotate, and the screw drives the nut to move in a specific direction. When the nut moves, it can drive the linkage assembly 43 to move, thereby pulling the guide member 3 to move between the first position and the second position.

[0053] For example, the nut and the linkage assembly 43 may be connected via a slider 44, one axial end of the slider 44 is connected to the nut, and the other end is hinged to the linkage assembly 43, so that the driving member 41 transmits power to the air guide member 3 through the screw nut structure 42 and the linkage assembly 43, so that the air guide member 3 can move closer to or away from the rear bumper 2, and then move between the first position and the second position. For example, the driving member 41 may be a motor, a cylinder, an electric cylinder, a hydraulic cylinder, etc., which is not limited in this embodiment.

[0054] Optionally, the driving member 41 may be disposed inside the vehicle body 1 , and the nut may be slidably disposed inside the vehicle body 1 to ensure the directionality of the driving.

[0055] It should be noted that, since the lead screw has a self-locking property, the flow guide member 3 will not generate an impact on the driving member 41 after being subjected to force, and the driving member 41 can be well protected.

[0056] Alternatively, if Figures 4 to 6 As shown, the linkage assembly 43 includes a connecting member 431 and a transmission member 432. One end of the connecting member 431 is hinged to the driving assembly, specifically, one end of the connecting member 431 is hinged to the slider 44. The other end of the connecting member 431 is hinged to one end of the transmission member 432, the middle part of the transmission member 432 is hinged to the vehicle body 1, and the other end of the transmission member 432 is hinged to the guide member 3. When the driving member 41 drives the slider 44 to move in a specific direction, the slider 44 drives the connecting member 431 to move, thereby causing the connecting member 431 to drive the transmission member 432 to rotate relative to the vehicle body 1, and the rotation center is the hinge position of the transmission member 432 and the vehicle body 1, so that the other end of the transmission member 432 swings, thereby driving the guide member 3 to move between the first position and the second position.

[0057] In some optional embodiments, the transmission member 432 is in an "L" shape, and the end of the short side of the transmission member 432 away from the corner intersects with the slider 44, the corner position of the transmission member 432 is hinged on the vehicle body 1, and the end of the long side of the transmission member 432 away from the corner is hinged to the guide member 3. Such an arrangement can reduce the space required for the linkage assembly 43 to move, and thus occupy a smaller space for easy layout.

[0058] Alternatively, if Figure 4 As shown, the linkage assembly 43 further includes a first follower 433. One end of the first follower 433 is hinged to the vehicle body 1, and the other end is hinged to the guide member 3. The arrangement of the first follower 433 can improve the stability of the guide member 3, ensure the posture of the guide member 3, and improve the guide capacity of the guide member 3.

[0059] It should be noted that the hinge position of the transmission member 432 and the guide member 3 is spaced from the hinge position of the first follower member 433 and the guide member 3 in the width direction of the guide member 3, so that the first follower member 433 and the transmission member 432 cooperate with each other to support the guide member 3 in the width direction of the guide member 3, further ensuring the posture of the guide member 3 and improving the guide capacity of the guide member 3.

[0060] In some optional embodiments, the vehicle body 1 cooperates with the rear bumper 2 to form an installation space, and the drive mechanism 4 can be located in the installation space so as not to affect the appearance of the vehicle. In this embodiment, since the deflector 3 is arranged below the rear end of the vehicle, the installation space can be located below the rear end of the vehicle, so that the vehicle has sufficient space to arrange the drive mechanism 4 and avoids occupying the space of the trunk.

[0061] Alternatively, if Figure 4 As shown, the surface of the air guide 3 facing the vehicle body 1 is provided with a first support member 31. The rear bumper 2 is provided with a strip hole 22, and the first support member 31 passes through the strip hole 22 and is hinged to an end of the transmission member 432 away from the connecting member 431. By providing the first support member 31, when the air guide 3 reciprocates between the first position and the second position, the first support member 31 reciprocates through the strip hole 22, so that the length of the first support member 31 and the length of the transmission member 432 do not need to be set too long, thereby improving the compactness of the driving mechanism 4.

[0062] It should be noted that the transmission member 432 and the first support member 31 are arranged at an angle, and when the guide member 3 is in the first position, the angle between the transmission member 432 and the first support member 31 is smaller than the angle between the transmission member 432 and the first support member 31 when the guide member 3 is in the second position.

[0063] Optionally, see Figure 4 A third support member 33 is provided on the surface of the air guide member 3 facing the vehicle body 1. One end of the third support member 33 away from the air guide member 3 is hinged to the first follower 433. The third support member 33 is arranged substantially parallel to the first support member 31, so that the first follower 433 and the transmission member 432 will not interfere with each other during movement, thereby improving transmission reliability.

[0064] In this embodiment, Figure 4 As shown, a first fixing member 11 is provided in the vehicle body 1, the middle part of the transmission member 432 is hinged to one end of the first fixing member 11, and the first follower member 433 is hinged to the other end of the first fixing member 11. By providing the first fixing member 11, the installation and positioning of the transmission member 432 and the first follower member 433 are facilitated.

[0065] In this embodiment, the connection between the guide member 3 and the first fixing member 11 is a simple parallelogram mechanism, and the manufacturing process of the parallelogram mechanism is very mature, so that the installation and maintenance of the linkage assembly 43 are relatively convenient.

[0066] Alternatively, if Figure 4 As shown, the vehicle further includes a second follower 5, which is used to assist in supporting the guide member 3. Specifically, the second follower 5 and the driving mechanism 4 are spaced apart in the length direction of the guide member 3, one end of the second follower 5 is hinged to the vehicle body 1, and the other end is hinged to the guide member 3, so that different positions in the length direction of the guide member 3 are movably connected to the vehicle body 1, avoiding the problem of the guide member 3 falling due to excessive force.

[0067] Optionally, a plurality of second followers 5 may be provided, and the plurality of second followers 5 are arranged at intervals along the length direction of the flow guide member 3 to further improve the connection reliability of the flow guide member 3 .

[0068] Alternatively, if Figure 4 As shown, a plurality of second followers 5 may be provided at a position in the length direction of the guide member 3, and the plurality of second followers 5 are arranged at intervals in the width direction of the guide member 3. By way of example, in this embodiment, two second followers 5 are provided at a position in the length direction of the guide member 3, and the two second followers 5 are arranged substantially in parallel. By way of another example, a second fixing member 12 is provided in the vehicle body 1, and one end of one second follower 5 is hinged to one end of the second fixing member 12, and one end of another second follower 5 is hinged to the other end of the second fixing member 12. By providing the second fixing member 12, the positioning and installation of the plurality of second followers 5 can be facilitated.

[0069] In some optional embodiments, the surface of the air guide 3 facing the vehicle body 1 is further provided with a second support member 32, and the other end of the second follower 5 is hinged to the second support member 32. By providing the second support member 32, when the air guide 3 reciprocates between the first position and the second position, the second support member 32 reciprocates through the rear bumper 2, so that the length of the second support member 32 and the length of the second follower 5 do not need to be set too long, thereby improving the compactness of the structure.

[0070] It should be noted that the second follower 5 and the second support member 32 are arranged at an angle, and when the guide member 3 is in the first position, the angle between the second follower 5 and the second support member 32 is smaller than the angle between the second follower 5 and the second support member 32 when the guide member 3 is in the second position.

[0071] In this embodiment, the driving member 41 drives the transmission member 432 to rotate relative to the first fixing member 11 through the lead screw nut structure 42, and drives the first follower 433 to rotate relative to the first fixing member 11. At this time, the flow guide member 3 is adjusted to move through the first support member 31 and the third support member 33. When the flow guide member 3 moves, the second follower 5 can be driven to rotate relative to the second fixing member 12 through the second support member 32, thereby realizing the movement of the flow guide member 3 between the first position and the second position, and improving the reliability and stability of the movement of the flow guide member 3.

[0072] In some optional embodiments, the driving mechanism 4 is provided with one or more, Figure 4 Schematic diagram of a single driving mechanism 4. When multiple driving mechanisms 4 are provided, multiple driving mechanisms 4 are spaced apart along the length direction of the guide member 3 to achieve multi-point driving of the guide member 3, thereby improving the driving effect and stability of the guide member 3.

[0073] It should be noted that when there are multiple drive mechanisms 4, the multiple drive mechanisms 4 operate simultaneously to ensure that the guide member 3 is evenly stressed at each position during the opening process, thereby reducing damage to the guide member 3 due to uneven stress. It should also be noted that when there are multiple drive mechanisms 4, the vehicle may or may not include the second follower 5, which is not limited in this embodiment.

[0074] Optionally, see Figure 6 , the longitudinal section of the guide member 3 is streamlined, and the longitudinal section is perpendicular to the left and right direction of the vehicle. Among them, streamlined is the shape of an object without obvious separation when the fluid flows over the surface. By setting the longitudinal section of the guide member 3 to be streamlined, a higher flow guiding effect is achieved. The installation position of the guide member 3 in this embodiment is relatively low, so that the guide member 3 will collapse when encountering a rear-end collision or other impact, so that the guide member 3 will not cause damage to the rear vehicle, object or person.

[0075] The vehicle provided in this embodiment is as follows: Figure 2 As shown, when the air guide 3 is located at the extreme position away from the rear bumper 2, there is a downward pressure gap 30 between the air guide 3 and the rear bumper 2. The air flows through the chassis 6 and then flows through the downward pressure gap 30, and applies a downward force to the air guide 3, and then applies a downward force to the vehicle body 1 through the air guide 3, thereby optimizing and adjusting the aerodynamic characteristics of the vehicle, reducing the pitch moment of the vehicle, improving the stability of the vehicle during driving, and enhancing the braking performance of the vehicle.

[0076] Furthermore, the deflector 3 is arranged on the side of the rear bumper 2 facing away from the vehicle body 1, so that the deflector 3 does not block the driver's sight when observing the vehicle condition behind the vehicle through the rearview mirror, which effectively reduces the driving risk compared with the traditional layout of the deflector 3.

[0077] In addition, the air guide 3 is arranged downward, so there is sufficient space to arrange the driving mechanism 4. It should also be noted that the main function of the air guide 3 in this embodiment is to change the local airflow motion characteristics of the rear of the vehicle. The air guide 3 itself is subject to a small aerodynamic force, so the material strength requirements for the air guide 3 and related structures are relatively low.

[0078] Embodiment 2

[0079] The vehicle provided in this embodiment is different from that in the first embodiment in that the structure of the rear bumper 2 is different.

[0080] Specifically, the rear bumper 2 in this embodiment is not provided with a storage groove 21. When the deflector 3 is located at the first position, that is, when the deflector 3 is located at the extreme position close to the rear bumper 2, the deflector 3 contacts the outer side of the rear bumper 2 toward the side of the vehicle body 1, so that the deflector 3 can form a protective structure, and then the deflector 3 and the rear bumper 2 form a double protective structure, further improving the protective strength of the vehicle.

[0081] The other structures in this embodiment are similar to those in the first embodiment and have similar beneficial effects, and will not be described in detail in this embodiment.

[0082] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A vehicle, comprising a vehicle body (1) and a rear bumper (2), wherein the rear bumper (2) is mounted at the rear end of the vehicle body (1), characterized in that: The vehicle further comprises a flow guide mechanism, the flow guide mechanism comprising a flow guide member (3) arranged on a side of the rear bumper (2) facing away from the vehicle body (1), the flow guide member (3) being movably connected to the vehicle body (1), and the flow guide member (3) having a first position close to the rear bumper (2) and a second position away from the rear bumper (2); When the deflector (3) is located at the second position, a downward pressure gap (30) is formed between the deflector (3) and the rear bumper (2).

2. The vehicle according to claim 1, characterized in that The vehicle further comprises a chassis (6); when the deflector (3) is located at the second position, the lowest point of the deflector (3) in the height direction of the vehicle body (1) is always higher than the lower surface of the chassis (6).

3. The vehicle according to claim 1, characterized in that The rear bumper (2) is provided with a receiving groove (21), and when the deflector (3) is located at the first position, the deflector (3) is located in the receiving groove (21).

4. The vehicle according to claim 1, characterized in that When the deflector (3) is located at the first position, the side of the deflector (3) facing away from the vehicle body (1) smoothly transitions to the outer side of the rear bumper (2); or, When the deflector (3) is located at the first position, the deflector (3) contacts the outer side surface of the rear bumper (2) facing the side surface of the vehicle body (1).

5. The vehicle according to any one of claims 1 to 4, characterized in that: The vehicle further comprises a flow guiding mechanism and a driving mechanism (4), wherein the driving mechanism (4) is arranged on the vehicle body (1) and is transmission-connected to the flow guiding member (3), and the driving mechanism (4) can drive the flow guiding member (3) to move between the first position and the second position relative to the vehicle body (1).

6. The vehicle according to claim 5, characterized in that The driving mechanism (4) comprises a driving component and a linkage component (43); the driving component is arranged on the vehicle body (1); the linkage component (43) is movably arranged on the vehicle body (1); and the driving component, the linkage component (43) and the flow guide (3) are sequentially connected in a transmission manner.

7. The vehicle according to claim 6, characterized in that The linkage assembly (43) comprises a connecting member (431) and a transmission member (432); one end of the connecting member (431) is hinged to the driving assembly, and the other end is hinged to one end of the transmission member (432); the middle part of the transmission member (432) is hinged to the vehicle body (1), and the other end of the transmission member (432) is hinged to the guide member (3).

8. The vehicle according to claim 7, characterized in that The linkage assembly (43) further comprises a first follower (433), one end of the first follower (433) being hinged to the vehicle body (1), and the other end being hinged to the air guide (3), and a hinge position between the transmission member (432) and the air guide (3) being spaced apart from a hinge position between the first follower (433) and the air guide (3) in the width direction of the air guide (3).

9. The vehicle according to claim 7, characterized in that The surface of the deflector (3) facing the vehicle body (1) is provided with a first support member (31), the rear bumper (2) is provided with a strip hole (22), the first support member (31) passes through the strip hole (22) and is hinged to an end of the transmission member (432) away from the connecting member (431).

10. The vehicle according to claim 5, characterized in that The vehicle further comprises a second follower (5), the second follower (5) and the driving mechanism being arranged at intervals in the length direction of the guide member (3), one end of the second follower (5) being hinged to the vehicle body (1), and the other end being hinged to the guide member (3).

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