Vehicle rear spoiler device and vehicle

Abstract

The utility model relates to the technical field of spoilers, and discloses a vehicle rear spoiler device and a vehicle, which comprise a spoiler mechanism and a rear bumper assembly, a containing cavity is formed in the rear bumper assembly, and an opening deviating from a vehicle head is formed in the containing cavity. The spoiler mechanism comprises a driving assembly, a transmission assembly and a spoiler, the driving assembly and the transmission assembly are installed in the containing cavity, the spoiler is in sliding connection with the rear bumper assembly, the driving assembly is in transmission connection with the spoiler through the transmission assembly, and the driving assembly is configured to drive the spoiler to stretch out of the opening and retract into the containing cavity through the transmission assembly. The spoiler extends into and out of the containing cavity in the rear bumper assembly, so that the space of the rear surface of a vehicle is not occupied, the spoiler can be retracted through the driving assembly when the vehicle speed is low, other people are prevented from being hurt, and the technical problems that in the prior art, the rear space of the vehicle is occupied, and pedestrians are prone to being hurt are solved. The technical effects that the space behind the vehicle is not occupied, and serious injury to pedestrians is avoided are achieved.

Description

Technical Field

[0001] This utility model relates to the field of spoiler technology, and in particular to a vehicle rear spoiler device and vehicle. Background Technology

[0002] Typically, when a vehicle travels at high speed, the lower side of the vehicle has a larger surface area exposed to the wind, while the upper side has a smaller surface area, resulting in a pressure difference between the upper and lower sides. This pressure difference generates lift on the vehicle body, and the higher the speed, the greater the pressure difference. This lift is a type of air resistance (i.e., induced drag), accounting for approximately 7% of the vehicle's total air resistance. Other air resistance only consumes the vehicle's power, but this external resistance not only consumes power but also generates support force, thus endangering the vehicle's driving safety. When the vehicle's speed reaches a certain value, the lift will overcome the vehicle's weight and lift it up, reducing the adhesion between the wheels and the ground, causing the vehicle to float, and decreasing the vehicle's driving stability.

[0003] In existing technologies, a diffuser is generally needed to interfere with the airflow around the vehicle to increase downforce. However, diffusers usually take up space behind the vehicle and can easily cause injury to pedestrians in the event of an accident. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle rear spoiler device and vehicle, which solves the technical problems of the expander occupying the rear space of the vehicle and easily causing injury to pedestrians in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a vehicle rear spoiler device, including a spoiler mechanism and a rear bumper assembly;

[0006] The rear bumper assembly has a receiving cavity with an opening facing away from the front of the vehicle.

[0007] The spoiler mechanism includes a drive assembly, a transmission assembly, and a spoiler. The drive assembly and the transmission assembly are installed in the accommodating cavity. The spoiler is slidably connected to the rear bumper assembly. The drive assembly is driven to the spoiler through the transmission assembly. The drive assembly is configured to drive the spoiler to extend out of the opening and retract into the accommodating cavity through the transmission assembly.

[0008] In an optional embodiment, the rear bumper assembly includes a rear floor and a bottom guard plate located below the rear floor. The rear floor is connected to the bottom guard plate, and the rear floor and the bottom guard plate form the receiving cavity. The opening is provided on the rear floor.

[0009] In an optional embodiment, the spoiler extends and retracts the accommodating cavity along a horizontal direction, and the thickness of the spoiler is arranged in an increasing manner along the advancing direction of the vehicle.

[0010] In an optional embodiment, the transmission assembly comprises a screw rod, the screw rod is drivingly connected to the spoiler, and the driving assembly is drivingly connected to the screw rod, so that the driving assembly drives the spoiler to extend out of the opening and retract into the accommodating cavity through the screw rod.

[0011] The axis of the output end of the driving assembly and the axis of the screw rod are located in the same horizontal plane.

[0012] In an optional embodiment, the transmission assembly further comprises a driving rod, the driving rod is connected to the screw rod through a helical gear set, and the axis of the driving rod and the axis of the screw rod are located in the same horizontal plane.

[0013] In an optional embodiment, the axis of the driving rod and the axis of the screw rod are arranged perpendicularly.

[0014] In an optional embodiment, the spoiler is provided with a connecting seat, the connecting seat is threadedly connected to the screw rod, and the screw rod rotates to drive the connecting seat to move along the axial direction of the screw rod.

[0015] In an optional embodiment, the screw rod is provided with two, the axes of the two screw rods are arranged in the same plane, the two screw rods are symmetrically arranged on the two sides of the spoiler, and the driving assembly drives the two screw rods to rotate synchronously.

[0016] In an optional embodiment, the driving assembly comprises a driving motor, the driving motor comprises symmetrically arranged first and second output shafts, and the first and second output shafts are respectively drivingly connected to one of the screw rods.

[0017] The utility model also provides a vehicle, including vehicle rear spoiler device.

[0018] The utility model provides a vehicle rear spoiler device, including spoiler mechanism and rear bumper assembly, be provided with containing cavity in rear bumper assembly, containing cavity is provided with the opening of the car head, spoiler mechanism includes drive assembly, transmission assembly and spoiler, drive assembly and transmission assembly are installed in containing cavity, spoiler and rear bumper assembly sliding connection, drive assembly passes through transmission assembly and is driven to connect with spoiler, drive assembly is configured as through transmission assembly drives spoiler to stretch out the opening and retract to containing cavity, through containing cavity of the rear bumper assembly of stretching in and stretching out, thereby does not occupy the space of car rear surface, and when the low speed of car can retract spoiler through drive assembly, avoids causing harm to others, has solved the extender of prior art occupies the rear space of car, and the technical problem that pedestrian is easily harmed, has reached not occupying the rear space of car, and the technical effect that avoids the serious harm of pedestrian. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structure schematic diagram of vehicle rear spoiler device mentioned in the utility model embodiment;

[0020] Figure 2 It is cross section structure schematic diagram of vehicle rear spoiler device mentioned in the utility model embodiment;

[0021] Figure 3 It is still another cross section structure schematic diagram of vehicle rear spoiler device mentioned in the utility model embodiment;

[0022] Figure 4 It is structure schematic diagram of spoiler mechanism and connecting seat mentioned in the utility model embodiment;

[0023] Figure 5 It is structure schematic diagram of spoiler mechanism mentioned in the utility model embodiment.

[0024] In the drawing, 100 - spoiler mechanism, 110 - drive assembly, 120 - transmission assembly, 121 - screw rod, 122 - drive rod, 123 - helical gear set, 130 - spoiler, 200 - rear bumper assembly, 210 - rear floor, 220 - bottom guard plate, 300 - connecting seat. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In related technologies, diffusers are generally used to interfere with airflow around the vehicle to increase downforce and make it more stable. However, diffusers take up space behind the vehicle and can easily cause injury to pedestrians in the event of an accident.

[0028] In view of this, such as Figures 1-5 As shown, some embodiments of this utility model provide a vehicle rear spoiler device, including a spoiler mechanism 100 and a rear bumper assembly 200; the rear bumper assembly 200 has a receiving cavity with an opening opposite to the front of the vehicle; the spoiler mechanism 100 includes a drive assembly 110, a transmission assembly 120 and a spoiler 130, the drive assembly 110 and the transmission assembly 120 are installed in the receiving cavity, the spoiler 130 is slidably connected to the rear bumper assembly 200, the drive assembly 110 is connected to the spoiler 130 through the transmission assembly 120, and the drive assembly 110 is configured to drive the spoiler 130 to extend out of the opening and retract into the receiving cavity through the transmission assembly 120.

[0029] In the above embodiment, the rear bumper assembly 200 is arranged at the tail of the vehicle, and the rear bumper assembly 200 is internally hollow to form a containing cavity, and the side of the rear bumper assembly 200 away from the vehicle head is provided with an opening, the shape of the opening is consistent with the end face shape of the spoiler 130, the spoiler 130 can be made of plastic material or carbon fiber material, the spoiler 130 can be in a plate shape, the driving assembly 110 can be a driving oil cylinder, the driving assembly 110 can be bolted on the inner wall of the containing cavity, the output end of the driving assembly 110 can be connected with the transmission assembly 120, and the end of the transmission assembly 120 away from the driving assembly 110 is connected with the spoiler 130, so that the driving assembly 110 can drive the spoiler 130 to move through the transmission assembly 120, further, the driving assembly 110 and the transmission assembly 120 can be arranged at the same height, so as to avoid occupying too much space in height, effectively saving space, and utilizing the space in the rear bumper assembly 200, when the vehicle speed is relatively high, for example, when the vehicle speed is higher than 70km / h, the driving assembly 110 can drive the spoiler 130 to extend out through the opening through the transmission assembly 120, so as to reduce the air resistance of the vehicle body and improve the downforce of the vehicle, and when the vehicle speed is relatively low, for example, when the vehicle speed is lower than 70km / h, the driving assembly 110 can drive the spoiler 130 to retract into the containing cavity through the transmission assembly 120, so as to reduce the overall length of the vehicle and make the vehicle more flexible.

[0030] Some embodiments of the utility model provide a vehicle rear spoiler device, including spoiler mechanism 100 and rear bumper assembly 200, rear bumper assembly 200 is provided with containing cavity, containing cavity is provided with the opening away from the vehicle head, spoiler mechanism 100 includes driving assembly 110, transmission assembly 120 and spoiler 130, driving assembly 110 and transmission assembly 120 are installed in containing cavity, spoiler 130 is slidably connected with rear bumper assembly 200, driving assembly 110 is transmission connected with spoiler 130 through transmission assembly 120, driving assembly 110 is configured to drive spoiler 130 to extend the opening and retract into containing cavity through transmission assembly 120, by extending and retracting into the containing cavity in rear bumper assembly 200, so as to not occupy the space of the back surface of the vehicle, and spoiler 130 can be retracted through driving assembly 110 when the vehicle speed is relatively low, avoid causing harm to others, solve the technical problem that the extender of prior art occupies the rear space of the vehicle and is easy to cause harm to pedestrians, reach the technical effect of not occupying the rear space of the vehicle and avoiding causing serious harm to pedestrians.

[0031] In an optional embodiment, the rear bumper assembly 200 includes a rear floor 210 and a bottom guard plate 220 located below the rear floor 210, the rear floor 210 is connected with the bottom guard plate 220, the rear floor 210 and the bottom guard plate 220 enclose the containing cavity, and the rear floor 210 is provided with the opening.

[0032] In the above embodiment, the rear floor 210 can be made of metal, and the rear floor 210 can be a whole die-casting part of the vehicle body. The underbody shield 220 can be made of plastic, and the underbody shield 220 can be fixed on the rear floor 210 by bolts or buckles, so that the accommodation cavity is formed between the underbody shield 220 and the rear floor 210. An opening can be provided on the rear floor 210 to facilitate the extension and retraction of the spoiler 130, so that the space between the underbody shield 220 and the rear floor 210 is effectively utilized.

[0033] In an optional embodiment, the spoiler 130 extends and retracts in the horizontal direction in the accommodation cavity, and the thickness of the spoiler 130 increases along the advancing direction of the vehicle.

[0034] In the above embodiment, the end of the spoiler 130 extending out of the opening can be smoothly arranged, so that the spoiler 130 can reduce wind resistance as much as possible. The side of the spoiler 130 facing the ground is provided with an inclined surface, and the thickness of the spoiler 130 increases along the advancing direction of the vehicle. The upper surface of the spoiler 130 is flush, so that the aerodynamics is effectively utilized to make the vehicle more stable.

[0035] Optionally, in the retracted state of the spoiler 130, the outermost end of the spoiler 130 can be flush with the surface of the underbody shield 220, so that the overall appearance is more flat, and the protrusion of the spoiler 130 is also avoided.

[0036] In an optional embodiment, the transmission assembly 120 includes a lead screw 121, the lead screw 121 is drivingly connected to the spoiler 130, and the driving assembly 110 is drivingly connected to the lead screw 121, so that the driving assembly 110 drives the lead screw 121 to drive the spoiler 130 to extend out of the opening and retract into the accommodation cavity. The axis of the output end of the driving assembly 110 and the axis of the lead screw 121 are located in the same horizontal plane.

[0037] In the above embodiment, the lead screw 121 can be made of metal, and the lead screw 121 is in the shape of a rod and is provided with external threads. The driving assembly 110 is drivingly connected to one end of the lead screw 121 to drive the lead screw 121 to rotate. The other side of the lead screw 121 is threadedly drivingly connected to the spoiler 130, so that the lead screw 121 can drive the spoiler 130 to reciprocate along the length direction of the lead screw 121 under the rotation of the lead screw 121. The lead screw 121 is arranged to point to the opening of the underbody shield 220, so that the lead screw 121 can drive the spoiler 130 to extend out of and retract into the accommodation cavity under the rotation of the lead screw 121. Further, the axis of the output end of the driving assembly 110 and the axis of the lead screw 121 are located in the same horizontal plane, that is, the driving assembly 110 and the lead screw 121 can be located in the same plane, so as to meet the arrangement requirement in the long and narrow accommodation cavity.

[0038] In an optional embodiment, the transmission assembly 120 further comprises a driving rod 122, the driving rod 122 is connected to the lead screw 121 through a bevel gear set 123, and the axis of the driving rod 122 is in the same horizontal plane as the axis of the lead screw 121.

[0039] In the above embodiment, the driving rod 122 can be made of metal, one end of the driving rod 122 can be connected to the output end of the driving assembly 110, and the other end can be connected with a bevel gear, and correspondingly, the side of the lead screw 121 close to the driving rod 122 is also provided with a bevel gear, the two bevel gears are engaged, so that the rotation of the driving rod 122 can drive the rotation of the lead screw 121, which can meet the requirement of arranging the lead screw 121 in the length direction, and also can make the setting position of the driving assembly 110 more diversified, at the same time, the axis of the driving rod 122 is also arranged in the same horizontal plane as the axis of the lead screw 121, so as to avoid the driving rod 122 arranged obliquely occupying more space, and make the driving rod 122 can be arranged in a narrow and long accommodating cavity.

[0040] In an optional embodiment, the axis of the driving rod 122 is perpendicular to the axis of the lead screw 121.

[0041] In the above embodiment, the axis of the driving rod 122 is perpendicular to the axis of the lead screw 121, so as to reduce the volume occupied by the driving rod 122 and the lead screw 121, the driving rod 122 and the lead screw 121 can be respectively rotatably connected to the rear floor 210 through bearings, so as to make the rotation of the driving rod 122 and the lead screw 121 more stable, and the driving assembly 110 can be fixed on the rear floor 210 by bolts or welding.

[0042] In an optional embodiment, the spoiler 130 is provided with a connecting seat 300, the connecting seat 300 is threadedly connected to the lead screw 121, and the lead screw 121 rotates to drive the connecting seat 300 to move along the axial direction of the lead screw 121.

[0043] In the above embodiment, the connecting seat 300 can be provided with a threaded hole, the connecting seat 300 can be made of metal, the connecting seat 300 can be fixed on the spoiler 130 by bolts, and the axis of the threaded hole of the connecting seat 300 can coincide with the axis of the lead screw 121, so that the lead screw 121 is threadedly matched with the threaded hole of the connecting seat 300 when rotating, and drives the spoiler 130 to move along the length direction of the lead screw 121.

[0044] In an optional embodiment, two lead screws 121 are provided, the axes of the two lead screws 121 are arranged in the same plane, the two lead screws 121 are symmetrically arranged on both sides of the spoiler 130, and the driving assembly 110 drives the two lead screws 121 to rotate synchronously.

[0045] In the above embodiment, the lead screws 121, the connecting seats 300 and the driving rods 122 can be provided in two, the two driving rods 122 can be connected with one lead screw 121 through one bevel gear set 123 respectively, the two lead screws 121 can be screwed with one connecting seat 300 respectively, the two connecting seats 300 can be fixed on the same plane of the spoiler 130, the two lead screws 121, the two connecting seats 300 and the two driving rods 122 are symmetrically arranged relative to the middle line of the spoiler 130, when the driving assembly 110 drives the two driving rods 122 to rotate, the two driving rods 122 can drive one lead screw 121 to rotate respectively, and the two lead screws 121 can drive one connecting seat 300 to move respectively, so that the force on the spoiler 130 is more uniform, and the movement of the spoiler 130 is more smooth.

[0046] In an optional embodiment, the driving assembly 110 comprises a driving motor, the driving motor comprises symmetrically arranged first and second output shafts, and the first and second output shafts drive one lead screw 121 connected thereto respectively.

[0047] In the above embodiment, the driving motor can adopt a double-head motor, the first and second output shafts on the two sides of the driving motor can be connected with one driving rod 122 through a flange respectively, and the threads on the two lead screws 121 can be oppositely arranged, so that the driving motor can drive the two lead screws 121 to rotate in opposite directions, and when the two lead screws 121 rotate in opposite directions, the spoiler 130 can be driven to extend into and out of the accommodating cavity through the different directions of the threads on the lead screws 121 and the cooperation of the two connecting seats 300.

[0048] Some embodiments of the utility model also provide a vehicle, including vehicle rear spoiler device.

[0049] The above only is the preferred embodiment of the utility model has, and does not use to limit the utility model, any modification, equivalent replacement, improvement etc. that is made in the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A vehicle rear spoiler device, characterised in that, The rear bumper assembly comprises a spoiler mechanism and a rear bumper assembly; The rear bumper assembly is provided with a containing cavity, and the containing cavity is provided with an opening facing away from the vehicle head; The spoiler mechanism comprises a driving assembly, a transmission assembly and a spoiler plate, the driving assembly and the transmission assembly are installed in the containing cavity, the spoiler plate is in sliding connection with the rear bumper assembly, the driving assembly is in transmission connection with the spoiler plate through the transmission assembly, and the driving assembly is configured to drive the spoiler plate to extend out of the opening and retract into the containing cavity through the transmission assembly.

2. The vehicle rear spoiler device of claim 1, wherein The rear bumper assembly comprises a rear floor and a bottom guard plate located below the rear floor, the rear floor is connected with the bottom guard plate, the rear floor and the bottom guard plate enclose the containing cavity, and the opening is arranged on the rear floor.

3. The vehicle rear spoiler device of claim 2, wherein, The spoiler plate extends and retracts in the containing cavity along the horizontal direction, and the thickness of the spoiler plate is arranged in an increasing manner along the advancing direction of the vehicle.

4. The vehicle rear spoiler device of claim 3, wherein, The transmission assembly comprises a lead screw, the lead screw is in transmission connection with the spoiler plate, and the driving assembly is in driving connection with the lead screw, so that the driving assembly drives the spoiler plate to extend out of the opening and retract into the containing cavity through the lead screw. The axis of the output end of the driving assembly and the axis of the lead screw are located in the same horizontal plane.

5. The vehicle rear spoiler device of claim 4, wherein, The transmission assembly further comprises a driving rod, the driving rod is connected with the lead screw through a helical gear set, and the axis of the driving rod and the axis of the lead screw are located in the same horizontal plane.

6. The vehicle rear spoiler device of claim 5, wherein, The axis of the driving rod and the axis of the lead screw are arranged perpendicularly.

7. The vehicle rear spoiler device of claim 6, wherein, The spoiler plate is provided with a connecting seat, the connecting seat is in threaded connection with the lead screw, and the lead screw rotates to drive the connecting seat to move along the axial direction of the lead screw.

8. The vehicle rear spoiler device of any one of claims 4-6, wherein, The lead screw is provided with two lead screws, the axes of the two lead screws are arranged in the same plane, the two lead screws are symmetrically arranged on both sides of the spoiler plate, and the driving assembly drives the two lead screws to rotate synchronously.

9. The vehicle rear spoiler device of claim 8, wherein, The driving assembly comprises a driving motor, the driving motor comprises symmetrically arranged first and second output shafts, and the first and second output shafts are respectively in driving connection with the two lead screws.

10. A vehicle characterized by comprising: The vehicle rear spoiler device comprises the vehicle rear spoiler device according to any one of claims 1-9.

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