Bumper assembly and vehicle

Abstract

The invention provides a bumper assembly and a vehicle. The bumper assembly comprises a bumper, a turbulent flow structure, a driving part and an elastic part, the turbulent flow structure comprises two side turbulent flow plates rotationally arranged on the bumper and a middle turbulent flow plate located between the two side turbulent flow plates, and the middle turbulent flow plate abuts against one sides of the two side turbulent flow plates; the elastic part is arranged between the bumper and the side spoilers and / or the middle spoiler, and under the action of the elastic part, the two side spoilers and the middle spoiler can be kept in an unfolded state protruding downwards relative to the bumper; the driving part can drive the middle spoiler and the side spoilers to rotate relative to the bumper so as to adjust the unfolding angle. According to the bumper assembly, under the action of the elastic parts, the two side spoilers and the middle spoiler can be kept in the downwards-protruding unfolding state relative to the bumper, the unfolding angle of the spoiler structure can be adjusted according to the running speed of a vehicle, and wind resistance in the running process of the vehicle can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a bumper assembly; meanwhile, the present application also relates to a vehicle provided with the bumper assembly. BACKGROUND

[0002] The automobile bumper is an important component of the automobile exterior structure, and its main function is to absorb and mitigate external impact force to protect the front and rear parts of the vehicle body and ensure the safety of the passengers. With the development of the automobile industry, the bumper not only bears the function of safety protection, but also gradually becomes an indispensable part of the automobile appearance design.

[0003] The main functions of the automobile bumper include safety protection, pedestrian protection, decoration, and improvement of aerodynamic performance. Specifically, when the automobile collides, the bumper can absorb part of the energy and reduce the impact force on the vehicle and passengers, thereby having good safety protection effect.

[0004] The bumper block installed at the lower part of the bumper can better protect the lower leg of the pedestrian in the collision, thereby achieving the effect of pedestrian protection. In addition, the appearance design of the bumper has become an indispensable part of the automobile modeling, which can improve the appearance of the vehicle. The shape design of the bumper also helps to improve the aerodynamic performance of the vehicle, reduce wind resistance, and improve driving stability.

[0005] Some lower spoilers are installed at the lower part of the front bumper of the automobile. Such lower spoilers are important parts designed to optimize the airflow direction when the vehicle is driving and reduce wind resistance. When the vehicle is in a high-speed driving state, the lower spoiler can guide the chassis airflow more efficiently through the chassis, reduce the vortex resistance and buoyancy caused by the unevenness of the chassis, reduce wind resistance, reduce fuel consumption, improve control stability, and reduce vortex noise.

[0006] However, when the vehicle is driving at a low speed, the guiding effect of the lower spoiler is not obvious, and instead, the windward area of the vehicle is increased, resulting in an increase in driving resistance. Based on this, it is best to retract the lower spoiler when the vehicle is driving at a low speed, and to deploy the lower spoiler at a corresponding angle when the vehicle is driving at a high speed, that is, the angle adjustability of the lower spoiler is very necessary. However, in the prior art, the angle of the lower spoiler installed at the lower part of the bumper is not adjustable, thus resulting in poor use effect of the lower spoiler. How to optimize the structure of the upper and lower spoilers of the bumper to reduce wind resistance has become an important direction for the optimization of the bumper. SUMMARY

[0007] Therefore, the present application aims to provide a bumper assembly to reduce wind resistance during vehicle driving.

[0008] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0009] A bumper assembly comprises a bumper, a spoiler structure, and a driving part and an elastic part; the spoiler structure comprises two side spoilers rotatably arranged on the bumper, and a middle spoiler arranged between the two side spoilers and abutting against one side of the two side spoilers;

[0010] The elastic part is arranged between the bumper and the side spoilers and / or the middle spoiler, and under the action of the elastic part, the two side spoilers and the middle spoiler can be kept in a deployed state of being concave downward relative to the bumper; the driving part is in transmission connection with the spoiler structure, and can drive the middle spoiler and the side spoilers to rotate relative to the bumper to adjust the deployment angle.

[0011] Further, the driving part is in transmission connection with the middle spoiler, or the driving part is in transmission connection with the middle spoiler and each side spoiler, and the driving part can drive the middle spoiler and each side spoiler to rotate to the other side.

[0012] Further, the power output end of the driving part is provided with two pull ropes, and each pull rope is connected with one side spoiler through the middle spoiler; and / or, the driving part is arranged on the inner side of the bumper.

[0013] Further, the power output end of the driving part is provided with a winding wheel, and one end of each pull rope is clamped on the winding wheel; and / or, the outer side of the bumper is provided with a containing groove, and the driving part can drive the middle spoiler and each side spoiler to rotate and be accommodated in the containing groove.

[0014] Further, the elastic part comprises two elastic members, and each elastic member is arranged between the bumper and each side spoiler; the elastic member can drive the side spoiler to deploy and push the middle spoiler to deploy synchronously, and the middle spoiler can abut against the side surface of the bumper to limit the deployment angle.

[0015] Further, the elastic member is an elastic sheet, and the elastic sheet comprises a longitudinal portion and a transverse portion extending to one side of the longitudinal portion, the longitudinal portion is connected with the bumper, and the transverse portion is connected with the side spoiler.

[0016] Further, one end of the transverse portion is inserted into the side spoiler, and the longitudinal portion is connected with the bumper through a bolt.

[0017] Further, the driving part comprises a Hall motor arranged on the bumper.

[0018] Further, the two side spoilers have an included angle, and the distance between the two side spoilers gradually increases in a direction away from the middle spoiler.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The bumper assembly has the advantages that: the spoiler structure is arranged on the bumper, the middle spoiler and the two side spoilers are rotatably arranged on the bumper, and one side of the middle spoiler and the two side spoilers abuts against each other, so that the two side spoilers and the middle spoiler can be kept in an unfolded state relative to the lower convexity of the bumper under the action of the elastic part, and the angle of the middle spoiler and the side spoilers can be adjusted by driving the middle spoiler and the side spoilers to rotate relative to the bumper, thereby facilitating adjustment of the unfolding angle of the spoiler structure according to the driving speed of the vehicle, which facilitates reduction of the wind resistance during driving of the vehicle, and thereby facilitates improvement of the stability of the vehicle during driving.

[0021] In addition, the driving part is in transmission connection with the middle spoiler, so that the middle spoiler can be driven, and the side spoilers can be simultaneously driven to rotate, thereby facilitating transmission connection between the driving part and the spoiler structure; the driving part is in transmission connection with the middle spoiler and the side spoilers, and the rotation of the spoiler structure can also be realized. The pull rope in the driving part, and the transmission path of the pull rope which is connected to one side of the middle spoiler and one side of the side spoiler, can be relatively long, and transmission connection between the driving part and the two side spoilers can be facilitated, and the driving part can be hidden inside the bumper, thereby improving the overall appearance; the driving part is arranged on the inner side of the bumper, which facilitates arrangement and implementation. The winding wheel is arranged on the power output end of the driving part, and one end of the pull rope is clamped on the winding wheel, so that two pull ropes can be arranged, thereby facilitating winding or unwinding of the pull rope, and facilitating adjustment of the angle of the spoiler structure; the arrangement of the accommodating groove in the bumper can improve the overall appearance of the front bumper assembly in the storage state of the spoiler structure.

[0022] In addition, the two elastic parts are arranged between the bumper and the two side spoilers, respectively, so that the side spoilers can be unfolded by releasing energy of the elastic parts, and the middle spoiler can be simultaneously unfolded by being pushed, and the unfolding angle can be limited by abutment between the middle spoiler and the side surface of the bumper. The longitudinal part of the elastic sheet and the transverse part extending to one side of the longitudinal part are arranged, which facilitates connection between the elastic sheet and the bumper and the side spoilers, and the structure of the entire elastic sheet is simple, easy to arrange and implement, and has good use effect. One end of the transverse part is inserted into the side spoiler, and the longitudinal part is connected to the bumper by a bolt, which has the characteristics of simple connection mode, easy installation, and high use stability.

[0023] Furthermore, the setting of the Hall motor in the driving part has the advantages of convenient arrangement and implementation and good driving effect. The number of turns of the pull rope wound on the power output shaft can be detected by the Hall sensor in the Hall motor, and then the expansion angle of the middle spoiler plate is controlled, so that the expansion and contraction of the middle spoiler plate and the side spoiler plates and the intermediate state between the two states of full expansion and full contraction are realized. The two side spoiler plates have an included angle, and the distance between the two side spoiler plates gradually increases in the direction away from the middle spoiler plate, which is beneficial to improve the flow guiding effect of the spoiler structure.

[0024] In addition, another object of the present application is to provide a vehicle provided with the bumper assembly as described above.

[0025] The vehicle described in the present application is beneficial to adjust the rotation angle of the spoiler structure according to the driving speed of the vehicle, thereby reducing the wind resistance of the vehicle, and further improving the aerodynamic performance of the vehicle, and further improving the driving stability of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustrating the illustrative embodiments of the present application and the explanations provided herein. In the drawings:

[0027] Figure 1 Structure schematic view of the bumper assembly in the first perspective view according to the embodiment of the present application;

[0028] Figure 2 Structure schematic view of the bumper assembly in the second perspective view according to the embodiment of the present application;

[0029] Figure 3 Structure schematic view of the bumper assembly in the third perspective view according to the embodiment of the present application;

[0030] Figure 4 Structure schematic view of the mounting plate according to the embodiment of the present application;

[0031] Figure 5 Structure schematic view of the spoiler structure in one perspective view according to the embodiment of the present application;

[0032] Figure 6 Structure schematic view of the spoiler structure in another perspective view according to the embodiment of the present application;

[0033] Figure 7 Structure schematic view of the middle spoiler plate according to the embodiment of the present application;

[0034] Figure 8 Structure schematic view of the side spoiler plate in one perspective view according to the embodiment of the present application;

[0035] Figure 9 Structure schematic view of side spoiler in another perspective according to the embodiment of the present application;

[0036] Figure 10 Structure schematic view of elastic sheet in unfolded state according to the embodiment of the present application;

[0037] Figure 11 Structure schematic view of elastic sheet in folded state according to the embodiment of the present application.

[0038] Explanation of reference signs:

[0039] 1, mounting plate; 2, spoiler structure; 3, elastic sheet; 4, pull rope; 5, driving part;

[0040] 100, second rotating shaft; 200, first rotating shaft;

[0041] 101, accommodating groove; 102, first matching block; 103, second matching block;

[0042] 201, middle spoiler; 2011, first mounting block; 2012, connecting block; 202, side spoiler; 2021, second mounting block; 2022, second connecting hole; 2023, limiting groove; 2024, plug-in groove;

[0043] 301, longitudinal part; 302, transverse part;

[0044] 401, puller;

[0045] 501, winding wheel. DETAILED DESCRIPTION

[0046] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0047] In the description of the present application, it should be noted that the orientation words such as "up, down, left, right, front, back" used in the present embodiment are defined based on the up-down direction, left-right direction and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction (Z direction) of the automobile, the front-back direction of the automobile is also the length direction (X direction) of the automobile, and the left-right direction of the automobile is also the width direction (Y direction) of the automobile. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present application, unless otherwise explicitly defined, the terms "mounting", "connection", "connecting", "connector" should be understood broadly. For example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with specific circumstances.

[0049] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0050] The present embodiment relates to a bumper assembly to solve the problem that the angle of the spoiler under the bumper in the prior art is single, the flow guiding effect is not obvious when the vehicle is running at a low speed, and the windward area of the vehicle is increased, thereby increasing the driving resistance.

[0051] Among them, the lower spoiler in the prior art can guide the chassis airflow when the vehicle is running at high speed, pass through the chassis more efficiently, reduce the vortex resistance and buoyancy caused by the unevenness of the chassis, reduce wind resistance, reduce fuel consumption, improve control stability, and reduce vortex noise.

[0052] However, when the vehicle is running at a low speed, the flow guiding effect of the lower spoiler is not obvious, and the windward area of the vehicle is increased, resulting in an increase in driving resistance. The angle of the lower spoiler installed at the lower part of the bumper is not adjustable, thus resulting in poor use effect of the lower spoiler.

[0053] Overall, the bumper assembly includes a bumper, a spoiler structure 2, and a driving part 5 and an elastic part. The spoiler structure 2 includes two side spoilers 202 rotatably arranged on the bumper, and a middle spoiler 201 located between the two side spoilers 202, and the middle spoiler 201 abuts one side of the two side spoilers 202.

[0054] Among them, the elastic part is arranged between the bumper and the side spoiler 202 and / or the middle spoiler 201, and under the action of the elastic part, the two side spoilers 202 and the middle spoiler 201 can be kept in a downward convex unfolded state relative to the bumper. The driving part 5 is in transmission connection with the spoiler structure 2, and can drive the middle spoiler 201 and the side spoiler 202 to rotate relative to the bumper to adjust the unfolding angle.

[0055] The bumper assembly described in the embodiment sets the spoiler structure 2 on the bumper, and the middle spoiler plate 201 and the two side spoiler plates 202 in the spoiler structure 2 are rotationally arranged on the bumper, and the middle spoiler plate 201 and one side of the two side spoiler plates 202 abut, so that the two side spoiler plates 202 and the middle spoiler plate 201 can be kept in the unfolded state relative to the lower convexity of the bumper under the action of the elastic part.

[0056] The bumper assembly described in the embodiment also drives the middle spoiler plate 201 and the side spoiler plate 202 to rotate relative to the bumper through the driving part 5, that is, to adjust the angle of the middle spoiler plate 201 and the side spoiler plate 202, so as to facilitate the adjustment of the unfolding angle of the spoiler structure 2 according to the driving speed of the vehicle, which is conducive to reducing the wind resistance during the driving of the vehicle, thereby facilitating the improvement of the stability of the driving of the vehicle.

[0057] Based on the overall introduction as above, an exemplary structure of the bumper assembly described in the embodiment is shown in Figures 1 to 3 As can be known from the above, the bumper in the embodiment is specifically the front bumper of the vehicle, and in order to facilitate the arrangement of the spoiler structure 2, the mounting plate 1 extending rearward along the front-rear direction of the whole vehicle is arranged at the bottom of the bumper, and the spoiler structure 2 is specifically arranged on the mounting plate 1 to guide the airflow passing below the mounting plate 1, thereby facilitating the reduction of the wind resistance during the driving of the vehicle. The structure of the mounting plate 1 is simple, facilitating the arrangement and implementation, and also having a good mounting effect.

[0058] As shown in Figure 5 and Figure 6 In the embodiment, the middle spoiler plate 201 is rotationally arranged at the middle of the mounting plate 1 and extends along the left-right direction of the whole vehicle. The two side spoiler plates 202 are arranged at the rear side of the middle spoiler plate 201 respectively, and the two side spoiler plates 202 are symmetrically arranged respectively. The projections of the middle spoiler plate 201 and the two side spoiler plates 202 in the front-rear direction of the whole vehicle coincide at the two ends of the middle spoiler plate 201 respectively, thereby facilitating the synchronous rotating action among the three.

[0059] As a feasible implementation manner, as shown in Figure 5 in the front-rear direction of the whole vehicle, the middle spoiler plate 201 is preferably located at the front side of the two side spoiler plates 202, and the rear side wall of the middle spoiler plate 201 abuts against one side of each side spoiler plate 202 facing the middle of the vehicle. As another feasible implementation manner, in the front-rear direction of the whole vehicle, the middle spoiler plate 201 can be located at the rear side of the front end of the two side spoiler plates 202, and at this time, the projections of the end of each side spoiler plate 202 facing the vehicle interior and the two ends of the side spoiler plate 202 in the front-rear direction of the whole vehicle also coincide at the two ends of the middle spoiler plate 201 respectively, thereby facilitating the action among the three.

[0060] The middle spoiler 201 and the two side spoilers 202 in this embodiment are rectangular, so as to increase the flow area in the left-right direction of the vehicle. Figure 7 As shown in FIG. 1, a first mounting block 2011 is provided on the top of the middle spoiler 201, and two first matching blocks 102 are provided on the bottom surface of the mounting plate 1. The first mounting block 2011 can be inserted between the two first matching blocks 102, and the middle spoiler 201 is rotatably arranged on the mounting plate 1 via a first rotating shaft 200 penetrating the first mounting block 2011 and the two first matching blocks 102.

[0061] As shown in FIG. 1, a first mounting block 2011 is provided on the top of the middle spoiler 201, and two first matching blocks 102 are provided on the bottom surface of the mounting plate 1. The first mounting block 2011 can be inserted between the two first matching blocks 102, and the middle spoiler 201 is rotatably arranged on the mounting plate 1 via a first rotating shaft 200 penetrating the first mounting block 2011 and the two first matching blocks 102. Figure 8 Figure 9 As shown in FIG. 1, a first mounting block 2011 is provided on the top of the middle spoiler 201, and two first matching blocks 102 are provided on the bottom surface of the mounting plate 1. The first mounting block 2011 can be inserted between the two first matching blocks 102, and the middle spoiler 201 is rotatably arranged on the mounting plate 1 via a first rotating shaft 200 penetrating the first mounting block 2011 and the two first matching blocks 102.

[0062] As shown in FIG. 1, a first mounting block 2011 is provided on the top of the middle spoiler 201, and two first matching blocks 102 are provided on the bottom surface of the mounting plate 1. The first mounting block 2011 can be inserted between the two first matching blocks 102, and the middle spoiler 201 is rotatably arranged on the mounting plate 1 via a first rotating shaft 200 penetrating the first mounting block 2011 and the two first matching blocks 102.

[0063] As shown in FIG. 1, a first mounting block 2011 is provided on the top of the middle spoiler 201, and two first matching blocks 102 are provided on the bottom surface of the mounting plate 1. The first mounting block 2011 can be inserted between the two first matching blocks 102, and the middle spoiler 201 is rotatably arranged on the mounting plate 1 via a first rotating shaft 200 penetrating the first mounting block 2011 and the two first matching blocks 102. Figure 5 ​As shown in FIG. 1, the two side spoilers 202 are arranged at an angle, and the distance between the two side spoilers 202 gradually increases in the direction away from the middle spoiler 201. Here, the two side spoilers 202 are arranged at an angle, and the distance between the two side spoilers 202 gradually increases in the direction away from the middle spoiler 201, which helps to improve the flow guiding effect of the spoiler structure 2, so that the air flow gradually flows to the sides of the vehicle in the front-to-back direction, thereby improving the flow guiding effect and efficiency of the spoiler structure 2.

[0064] Specifically, the front end of each side spoiler 202 is arranged at the rear side of the middle spoiler 201 corresponding to the end of the middle spoiler 201, and each side spoiler 202 gradually inclines outward in the left-right direction of the vehicle from front to back. In this way, the distance between the two side spoilers 202 gradually increases. The middle spoiler 201 and the side spoilers 202 arranged outside the middle spoiler 201 form a spoiler structure 2 that adjusts the air resistance. It should be noted that in this embodiment, the two side spoilers 202 and the middle spoiler 201 can also be arranged parallel to each other, and the cooperation of the three can also achieve the effect of guiding the flow.

[0065] When the air flow in front of the vehicle flows through the spoiler structure 2, it will first be blocked by the middle spoiler 201 and be divided left and right by the middle spoiler 201 to the outside of the two side spoilers 202, and at the same time, under the guidance of the two side spoilers 202, it will flow to the outside of the vehicle in the front-to-back direction of the vehicle from front to back, thereby helping to reduce the air resistance during vehicle driving. The cooperation mode of one middle spoiler 201 and two side spoilers 202 is simple and easy to arrange, and the flow guiding effect of the three is good.

[0066] As a preferred embodiment, as shown in Figure 5 As shown in FIG. 1, the elastic part in this embodiment includes two elastic members, which are arranged between the bumper and the two side spoilers 202. The elastic members can drive the side spoilers 202 to expand and push the middle spoiler 201 to expand synchronously, and the middle spoiler 201 can abut against the side surface of the bumper to limit the expansion angle. Here, the two elastic pieces 3 are arranged between the bumper and the two side spoilers 202, which helps to expand the side spoilers 202 by releasing the energy of the elastic members, and to push the middle spoiler 201 to expand synchronously, and to limit the expansion angle by abutting the middle spoiler 201 and the side surface of the bumper.

[0067] The structure of the elastic member in this embodiment is as shown in Figure 5 and Figure 10As shown, the elastic element is an elastic sheet 3, which includes a longitudinal portion 301 and a transverse portion 302 extending to one side of the longitudinal portion 301. The longitudinal portion 301 is connected to the bumper, and the transverse portion 302 is connected to the side spoiler 202. The arrangement of the longitudinal portion 301 and the transverse portion 302 on the elastic sheet 3 facilitates the connection between the elastic sheet 3 and the bumper and the side spoiler 202. Furthermore, the overall structure of the elastic sheet 3 is simple, easy to arrange and implement, and also has good performance.

[0068] In practical implementation, the elastic sheet 3 is made of spring steel, and the elastic sheet 3 in its initial state is... Figure 10 The "L" shape shown has a connection between the transverse portion 302 and the longitudinal portion 301 that can be bent into an arc shape to facilitate the deformation of the elastic sheet 3. The included angle between the transverse portion 302 and the longitudinal portion 301 is greater than 90°, which helps to ensure that the central spoiler 201 has a certain preload when it is opened. Under the action of the drive unit 5, the central spoiler 201 presses down the side spoilers 202 on both sides as they rotate around their respective axes, and the elastic sheet 3 can be bent and compressed into an arc shape. Figure 11 As shown As a preferred arrangement, the elastic sheet 3 is located between the two second mounting blocks 2021, which helps to improve the stability of the elastic sheet 3 during use.

[0069] In this embodiment, one end of the lateral portion 302 is inserted into the side spoiler 202, and the longitudinal portion 301 is connected to the bumper by bolts. This design, where one end of the lateral portion 302 is inserted into the side spoiler 202 and the longitudinal portion 301 is connected to the bumper by bolts, features a simple connection method, ease of installation, and high stability in use.

[0070] like Figure 8 As shown, each side spoiler 202 has an insertion slot 2024 at its top. The lateral portion 302 is inserted into the insertion slot 2024 and connected to the side spoiler 202. During installation, the lateral portion 302 is first inserted into the insertion slot 2024, then the side spoiler 202 is rotated and mounted on the mounting plate 1, and finally the longitudinal portion 301 is fixed to the mounting plate 1 with bolts. Each longitudinal portion 301 can be fixed to the mounting plate 1 with one or more bolts, as long as the connection requirements are met.

[0071] It should be noted that the transverse part 302 in the embodiment can be bolted to the side of the side spoiler 202 facing the tail of the vehicle in addition to being inserted into the side spoiler 202, as long as the connection requirements of the transverse part 302 and the rotation requirements of the side spoiler 202 are met. In addition, the elastic sheet 3 is connected by the combination of insertion and screwing, which is also conducive to the replacement and maintenance of the elastic sheet 3, thereby reducing the maintenance cost. As a feasible implementation manner, the driving part 5 is in transmission connection with the middle spoiler 201 and each side spoiler 202, and the driving part 5 can drive the middle spoiler 201 and each side spoiler 202 to rotate to the other side. By transmission connection of the driving part 5 with the middle spoiler 201 and the side spoiler 202, it is conducive to realizing the rotation of the spoiler structure 2, thereby facilitating the adjustment of the unfolding angle of the spoiler structure 2, and having good use stability. In addition, the use of only one driving part 5 can also facilitate the reduction of weight and production cost.

[0072] As shown in Figure 6 , the power output end of the driving part 5 is provided with two pull ropes 4, and each pull rope 4 is connected with the middle spoiler 201 and one side spoiler 202 thereof. Here, the pull rope 4 in the driving part 5 and the stretching connection between the middle spoiler 201 and one side spoiler 202 thereof can have a larger transmission path and facilitate the transmission connection between the driving part 5 and the two side spoilers 202.

[0073] Specifically, one end of each of the two pull ropes 4 is arranged on the power output end of the driving part 5, and the winding of each pull rope 4 can be realized by the rotation of the driving part 5 in the first direction, and the unwinding of each pull rope 4 can be realized by the rotation of the driving part 5 in the second direction. The first direction and the second direction are opposite.

[0074] In order to facilitate the connection of the pull rope 4 with the middle spoiler 201 and the side spoiler 202, as shown in Figure 6 , two outwardly protruding connecting blocks 2012 are arranged on the rear side of the bottom of the middle spoiler 201, and the two connecting blocks 2012 are arranged at intervals in the length direction of the middle spoiler 201 and located between the front ends of the two side spoilers 202. Each of the first connecting blocks 2012 is provided with a first connecting hole arranged through along the length direction thereof, and corresponding to the first connecting hole on the same side, each side spoiler 202 is provided with a second connecting hole 2022 arranged through along the length direction thereof.

[0075] Each pull rope 4 is arranged through the first connecting hole and the second connecting hole 2022 on the same side, and a pull head 401 is arranged at the free end of the pull rope 4. The cross-sectional area of the pull head 401 is greater than that of the second connecting hole 2022, so that the pull rope 4 cannot be retracted into the second connecting hole 2022, thereby improving the connection effect between the pull rope 4 and the side spoiler 202. As a preferred embodiment, a limiting groove 2023 is arranged at one end of each side spoiler 202 away from the middle spoiler 201 and in communication with the second connecting hole 2022. The pull head 401 is accommodated in the limiting groove 2023. In a specific implementation, the pull head 401 is preferably fixed to the pull rope 4 by welding, or can be fixed to the pull rope 4 by other means. The limiting groove 2023 is shaped according to the pull head 401 to meet the use requirements.

[0076] The connection mode of the pull rope 4, the middle spoiler 201 and the side spoiler 202 in the embodiment is simple, easy to arrange and implement, and has good use effect. When the angle of the pull rope 4 needs to be increased in the unfolded state, the driving part 5 unwinds the pull rope 4, and under the action of the elastic part, the angle of the middle spoiler 201 and the side spoiler 202 to the mounting plate 1 is increased at the same time. When the angle of the spoiler structure 2 needs to be reduced in the unfolded state, the driving part 5 winds up the pull rope 4, and under the action of the elastic part, the angle of the middle spoiler 201 and the side spoiler 202 to the mounting plate 1 is reduced at the same time.

[0077] As a preferred embodiment, the driving part 5 in the embodiment is arranged on the inner side of the bumper, that is, the driving part 5 is arranged on the upper side of the mounting plate 1, and the mounting plate 1 is provided with a through hole for the two pull ropes 4 to pass through. The arrangement of the through hole also improves the stability of the pull rope 4 during winding or unwinding. By hiding the driving part 5 inside the bumper, the overall appearance is improved, and the driving part 5 can also be protected by the mounting plate 1, thereby prolonging the service life of the driving part 5. Of course, the driving part 5 can also be arranged at the bottom of the mounting plate 1 or on the outer side of the bumper. In this case, the pull rope is directly connected to the middle spoiler 201 and the side spoiler 202, and needs to pass through the mounting plate 1.

[0078] As another possible implementation, the driving part 5 in the embodiment can also be connected with the middle spoiler 201 only, and the middle spoiler 201 is driven by the driving part 5 only, so that the side spoilers 202 are driven to rotate simultaneously, facilitating the transmission connection between the driving part 5 and the spoiler structure 2. At this time, the pull rope 4 is connected with the first connecting hole only, without the need to be connected with the second connecting hole 2022. In the unwinding process of the pull rope 4, the two side spoilers 202 are driven to rotate downward under the action of the elastic sheet 3, so as to increase the angle between each spoiler and the mounting plate 1. In the winding process of the pull rope 4, the middle spoiler 201 is pulled by the pull rope 4, so that the two side spoilers 202 are pushed to rotate upward simultaneously, and the elastic sheet 3 is compressed to store energy, so as to reduce the angle between each spoiler and the mounting plate 1.

[0079] In order to facilitate the winding and unwinding of the pull rope 4 by the driving part 5, in the embodiment, the power output end of the driving part 5 is provided with a winding wheel 501, and one end of each of the two pull ropes 4 is clamped on the winding wheel 501. Here, by providing the winding wheel 501 on the power output end of the driving part 5, and clamping one end of each of the two pull ropes 4 on the winding wheel 501, it is convenient to set two pull ropes 4, so as to facilitate the winding or unwinding of the pull rope 4, and further facilitate the adjustment of the angle of the spoiler structure 2. In order to improve the winding effect of the pull rope 4 on the winding wheel 501, the outer periphery of the winding wheel 501 is provided with a recessed winding space, and the pull rope 4 is wound in the winding space. In the embodiment, the unwinding angle of each spoiler can be changed by operating the pull rope 4 in cooperation with the elastic member, which has good adjustment convenience.

[0080] In addition, it should be particularly pointed out that, in addition to being arranged between the bumper and the side spoiler 202, the elastic part in the embodiment can also be arranged only between the bumper and the middle spoiler 201. At this time, the insertion groove 2024 is formed on the top of the middle spoiler 201, the horizontal part 302 is specifically inserted into the middle spoiler 201, and the longitudinal part 301 is connected with the mounting plate 1 by screwing. In this way, when the pull rope 4 is unwound, the unwinding angle of the middle spoiler 201 increases, and the unwinding angle of the side spoiler 202 increases due to the seat of the pull rope 4, and the elastic sheet 3 releases the stored energy. When the pull rope 4 is wound, the unwinding angle of the middle spoiler 201 decreases, and the unwinding angle of the side spoiler 202 decreases, and at this time the elastic sheet 3 is compressed to store energy, which can also meet the use requirement of the angle adjustment of the spoiler structure 2.

[0081] In specific implementation, the thickness of the elastic sheet 3 should be based on meeting the use requirement of the elastic sheet 3, which can be determined according to the use requirement in specific implementation. As a preferred, the thickness of the elastic sheet 3 is greater than the thickness of the horizontal part 302 and the thickness of the longitudinal part 301. The elastic sheet 3 has good elastic deformation effect after switching between different types, which is beneficial to prolong the service performance and service life of the elastic sheet 3, and further beneficial to reduce the cost of the elastic sheet 3. In addition, the width of the elastic sheet 3 can also be adaptively adjusted according to the use requirement.

[0082] The driving part 5 is a key component for rotating the spoiler structure 2. As a preferred embodiment, the driving part 5 in the embodiment includes a Hall motor arranged on the bumper. The Hall motor can adopt a product in the prior art, which specifically has a Hall sensor and a Hall element inside the motor, for detecting the position of the rotor and transmitting signals to the controller, so that the motor structure is relatively complex but the function is more perfect. The number of turns of the pull rope 4 wound on the power output shaft can be detected by the Hall sensor, and then the expansion angle of the middle spoiler plate 201 is controlled, so as to realize the expansion and contraction of the middle spoiler plate 201 and the side spoiler plate 202, as well as the intermediate state between the fully expanded and contracted states.

[0083] In addition, compared with the traditional motor, the Hall motor in the embodiment adopts electronic commutation technology, which performs non-contact commutation control through the Hall element built in the motor, without using the brush which is easy to be damaged in the traditional brush motor, thereby improving the reliability and service life of the motor. The Hall sensor on the Hall motor can timely sense the position change of the rotor and send signals to the controller, and the controller adjusts the output power of the motor according to the signals, so that the operation of the motor is smoother and more accurate.

[0084] Due to the application of electronic commutation technology, the commutation speed of the Hall motor is faster and the efficiency is higher, which can effectively reduce the internal loss of the motor and make the power density higher. In addition, since the Hall motor does not need to use the traditional current collector brush and brush, the brush damage caused by friction and thermal winding package is avoided, and the reliability and service life of the motor are improved. Moreover, the Hall motor does not produce electric arc and spark during commutation, and does not produce magnetic interference, which ensures the normal operation of the motor, so that the use of the Hall motor in the embodiment has good beneficial effects.

[0085] As a preferred embodiment, as shown in Figure 4 The outer side of the bumper is provided with a containing groove 101, and the driving part 5 can drive the middle spoiler plate 201 and each side spoiler plate 202 to rotate and be accommodated in the containing groove 101. Here, the containing groove 101 on the bumper is specifically arranged on the bottom surface of the mounting plate 1. By arranging the containing groove 101, the overall aesthetic appearance of the front bumper assembly in the accommodated state of the spoiler structure 2 can be improved.

[0086] Specifically, the accommodating groove 101 is arranged on the bottom surface of the mounting plate 1, and the shape of the accommodating groove 101 is substantially the same as the arrangement shape of the middle spoiler 201 and the two side spoilers 202 in the spoiler structure 2, so as to facilitate the processing and forming, and to meet the use requirements of the spoiler structure 2 in the unfolded and accommodated states. The first matching block 102 and the second matching block 103 are both arranged on the side of the accommodating groove 101 facing the vehicle head. In this way, the middle spoiler 201 and the two side spoilers 202 are both rotationally arranged on the side of the mounting groove 101 facing the vehicle head, thereby facilitating to ensure the use performance of the accommodating groove 101.

[0087] As a preferred embodiment, when the middle spoiler 201 and the side spoiler 202 are unfolded to be perpendicular to the mounting plate 1, the top surface of the middle spoiler 201 abuts on the bottom surface of the mounting plate 1, at this time, the bottom surface of the mounting plate 1 can limit the rotation of the middle spoiler 201 in the direction of continuous unfolding, so as to limit the continuous rotation of the middle spoiler 201 relative to the mounting plate 1, and further make the angle between the middle spoiler 201, the two side spoilers 202 and the mounting plate 1 reach the maximum.

[0088] In order to further improve the use effect of the bumper assembly, in the use of the spoiler structure 2 in the bumper assembly, the vehicle controller can obtain the vehicle speed information through the vehicle speed sensor and the like, and adjust the unfolding angle of the spoiler structure 2 according to the vehicle speed information, so that the spoiler structure 2 has good use flexibility, and the wind resistance during the vehicle driving is minimized.

[0089] Specifically, when the vehicle speed reaches the first speed threshold, the vehicle controller can send a signal to the driving part 5, so that the power output end of the driving part 5 rotates and the pull rope 4 is unwound, the included angle between the transverse part 302 and the longitudinal part 301 of the elastic sheet 3 increases, the two side spoilers 202 rotate under the action of the elastic sheet 3, and the middle spoiler 201 is pushed to rotate synchronously, and the unfolding angle of each spoiler structure 2 increases. At this time, the airflow passing through the middle spoiler 201 and the side spoiler 202 is guided and divided, thereby facilitating to reduce the wind resistance of the vehicle during low wind speed driving.

[0090] In the embodiment, when the vehicle speed increases from the first speed threshold to the second speed threshold, the vehicle controller sends a signal to the driving part 5, the power output end of the driving part 5 rotates and further unwinds the pull rope 4, thereby increasing the unfolding angle of the middle spoiler 201 and the side spoiler 202, at this time, the spoiler structure 2 can reduce the wind resistance of the vehicle during high wind speed driving.

[0091] In specific implementation, when the vehicle controller obtains that the vehicle speed is reduced again from the second speed threshold to the first speed threshold, the vehicle controller sends a signal to the driving part 5, the power output end of the driving part 5 rotates, and the pull rope 4 is wound, thereby driving the middle spoiler 201 and the side spoilers 202 to rotate synchronously, so that the unfolding angle of the middle spoiler 201 and the side spoilers 202 is reduced, and the elastic sheet 3 is compressed to store energy. At this time, the spoiler structure 2 can reduce the wind resistance of the vehicle during low-speed driving.

[0092] Of course, in specific implementation, the first speed threshold and the second speed threshold can be determined according to the use requirement, which is not limited herein. In addition, the speed threshold can be multiple, and the unfolding principle of the middle spoiler 201 and the side spoilers 202 is the same as that of the two speed thresholds, which is not described herein.

[0093] In addition, in the embodiment, the unfolding angle of the middle spoiler 201 and the side spoilers 202 can be set to any position, so that the unfolding angle of the middle spoiler 201 and the side spoilers 202 can be adjusted according to the driving state of the vehicle, thereby adapting to different vehicle speed conditions, and having good use flexibility.

[0094] The bumper assembly in the embodiment can solve the problems of the poor guiding effect and the increase of the driving resistance due to the increase of the windward area of the vehicle in the prior art, by optimizing the cooperation relationship among the spoiler structure 2, the motor, the pull rope 4 and the elastic member, so that the middle spoiler 201 and the two side spoilers 202 can be opened or folded synchronously, the unfolding angle of the middle spoiler 201 and the two side spoilers 202 can be adjusted according to the driving speed of the vehicle, and the use flexibility is good. Meanwhile, the bumper assembly in the embodiment can solve the problems of the large weight and the high cost due to the use of multiple motors in the current spoiler structure 2, and has the advantages of low weight and low cost.

[0095] In addition, in the embodiment, by optimizing the spoiler structure 2 in the embodiment, the unfolding angle of the middle spoiler 201 and the side spoilers 202 can be increased during high-speed driving of the vehicle, the air flow of the vehicle chassis can be guided by the cooperation of the middle spoiler 201 and the side spoilers 202, the air flow can pass through the chassis more efficiently, the vortex resistance and the buoyancy caused by the unevenness of the chassis are reduced, the wind resistance is reduced, the fuel consumption is reduced, the control stability is improved, and the vortex noise is reduced. In addition, when the vehicle drives at a low speed, the unfolding angle of the middle spoiler 201 and the side spoilers 202 can be reduced, so that the windward area of the vehicle can be reduced, the guiding effect is good, and the driving resistance of the vehicle is reduced.

[0096] Meanwhile, in the embodiment, the middle spoiler structure 2 can guide and distribute the airflow flowing to the bottom of the bumper in a targeted manner by the spoiler mode of the middle spoiler plate 201 cooperating with the two side spoiler plates 202, and can adjust the opening angle of the middle spoiler plate 201 and the two side spoiler plates 202 according to the vehicle speed, so that the spoiler effect of the spoiler structure 2 is better and the use is more flexible. In addition, by the cooperation of the elastic sheet 3, the pull rope 4 and the driving part 5, the synchronous rotation of the middle spoiler plate 201 and the two side spoiler plates 202 can be realized, which is beneficial to implementation and also has good use stability and reliability.

[0097] In addition, the embodiment also relates to a vehicle provided with the bumper assembly as described above. In specific implementation, the vehicle in the embodiment can be any vehicle type, that is, the bumper assembly described above can be applied to different vehicle types, thereby reducing the wind resistance during vehicle driving, having good universality, and being beneficial to platform implementation and application.

[0098] The vehicle described in the embodiment, by being provided with the bumper assembly as described above, is beneficial to adjusting the rotation angle of the spoiler structure 2 according to the driving speed of the vehicle, thereby being beneficial to reducing the wind resistance of the vehicle, further being beneficial to improving the aerodynamic performance of the vehicle, and further being beneficial to improving the driving stability of the vehicle.

[0099] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bumper assembly, characterized in that: it comprises a bumper, a spoiler structure (2), and a driving part (5) and a resilient part; the spoiler structure (2) comprises two side spoilers (202) rotatably arranged on the bumper, and a middle spoiler (201) located between the two side spoilers (202), and the middle spoiler (201) abuts one side of the two side spoilers (202); the resilient part is arranged between the bumper and the side spoilers (202) and / or the middle spoiler (201), and under the action of the resilient part, the two side spoilers (202) and the middle spoiler (201) can be kept in a deployed state of being concave downward relative to the bumper; the driving part (5) is in transmission connection with the spoiler structure (2), and can drive the middle spoiler (201) and the side spoilers (202) to rotate relative to the bumper to adjust the deployment angle. 2.The bumper assembly according to claim 1, characterized in that: the driving part (5) is in transmission connection with the middle spoiler (201), or the driving part (5) is in transmission connection with the middle spoiler (201) and each side spoiler (202), and the driving part (5) can drive the middle spoiler (201) and each side spoiler (202) to rotate to the other side. 3.The bumper assembly according to claim 2, characterized in that: a power output end of the driving part (5) is provided with two pull ropes (4), each pull rope (4) is connected with the middle spoiler (201) and one side spoiler (202) thereof; and / or the driving part (5) is arranged on the inner side of the bumper. 4.The bumper assembly according to claim 3, characterized in that: a power output end of the driving part (5) is provided with a winding wheel (501), and one end of each pull rope (4) is clamped on the winding wheel (501); and / or an outer side of the bumper is provided with a containing groove (101), and the driving part (5) can drive the middle spoiler (201) and each side spoiler (202) to rotate and be accommodated in the containing groove (101). 5.The bumper assembly according to claim 1, characterized in that: the resilient part comprises two elastic members, and each elastic member is arranged between the bumper and one side spoiler (202); the elastic members can release energy to drive the side spoilers (202) to deploy and push the middle spoiler (201) to deploy synchronously, and the middle spoiler (201) can abut the side surface of the bumper to limit the deployment angle. 6.The bumper assembly according to claim 5, characterized in that: The elastic member is an elastic sheet (3) comprising a longitudinal portion (301) connected to the bumper and a transverse portion (302) extending to one side of the longitudinal portion (301) and connected to the side spoiler (202).

7. The bumper assembly according to claim 6, characterized in that: One end of the transverse portion (302) is inserted into the side spoiler (202), and the longitudinal portion (301) is connected to the bumper by bolts.

8. The bumper assembly according to claim 1, characterized in that: The driving part (5) comprises a Hall motor arranged on the bumper.

9. The bumper assembly according to any one of claims 1 to 8, characterized in that: The two side spoilers (202) have an included angle therebetween, and the distance between the two side spoilers (202) gradually increases in a direction away from the middle spoiler (201).

10. A vehicle, characterized in that: The vehicle is provided with the bumper assembly according to any one of claims 1 to 9.

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