Vehicle diffuser and vehicle

Abstract

The invention discloses a vehicle diffuser and a vehicle. The vehicle diffuser comprises a base; and the multiple turbulent flow blades are arranged on the base, and the multiple turbulent flow blades are configured to selectively rotate so as to be opened away from the base and closed towards the base. The multiple turbulent flow blades can be controlled to be opened and closed, and therefore the requirements of different driving working conditions are met.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle diffuser and a vehicle. Background Art

[0002] In the related art, the rear diffuser of automobiles on the market is a fixed structure, which cannot adjust the size of the airflow introduced into the rear during driving, and the effect of reducing wind resistance is not obvious. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a vehicle diffuser that can control the opening and closing of multiple spoiler blades to meet different driving conditions.

[0004] The present invention further provides a vehicle.

[0005] A vehicle diffuser according to an embodiment of the first aspect of the present invention comprises: a base; a plurality of spoiler blades, the plurality of spoiler blades being arranged on the base, the spoiler blades being configured to selectively rotate to open to different angles away from the base and close toward the base.

[0006] The vehicle diffuser according to the embodiment of the present invention can control the opening and closing of multiple spoiler blades, thereby meeting the requirements of different driving conditions and effectively improving the driving experience of the driver and passengers.

[0007] According to some embodiments of the present invention, a plurality of the spoiler blades are arranged at intervals along the length direction of the base.

[0008] According to some embodiments of the present invention, the area of ​​the spoiler blades located in the middle of the base in the length direction is smaller than the areas of the spoiler blades located at both ends of the base in the length direction.

[0009] According to some embodiments of the present invention, the spoiler blades located in the middle of the base in the length direction are drive connected to the base via a swing arm; the spoiler blades located at both ends of the base in the length direction are drive connected to the base via multiple swing arms.

[0010] According to some embodiments of the present invention, the width of the spoiler blades located in the middle of the base in the length direction is smaller than the width of the spoiler blades located at both ends of the base in the length direction.

[0011] According to some embodiments of the present invention, the spoiler blades located in the middle of the base in the length direction have a greater length in the width direction of the base than the spoiler blades located at both ends of the base in the length direction.

[0012] According to some embodiments of the present invention, one end of the plurality of spoiler blades is connected to the base.

[0013] According to some embodiments of the present invention, a plurality of the spoiler blades are arranged side by side on the base, and a connection center point between one end of the plurality of the spoiler blades and the base is located on the same straight line.

[0014] According to some embodiments of the present invention, one end of the plurality of spoiler blades extends horizontally along the length direction of the base, and the other end of the plurality of spoiler blades extends obliquely toward a direction close to the one end of the spoiler blades in a direction from the middle of the length direction of the base toward the end of the length direction of the base.

[0015] According to some embodiments of the present invention, a width of one end of the plurality of spoiler blades in the length direction of the base is greater than a width of the other end of the plurality of spoiler blades in the length direction of the base.

[0016] According to some embodiments of the present invention, the plurality of spoiler blades are bilaterally symmetrical in the length direction of the base.

[0017] According to some embodiments of the present invention, the plurality of spoiler blades are configured so that the spoiler blades rotate synchronously to open away from the base and close synchronously toward the base.

[0018] According to some embodiments of the present invention, the vehicle diffuser further includes: at least one driving unit, the driving unit being disposed on the base, the driving unit being connected to the spoiler blades, and the driving unit being used to drive the spoiler blades to open and close.

[0019] According to some embodiments of the present invention, the driving unit and the spoiler blades are located on the same side of the base.

[0020] According to some embodiments of the present invention, the spacing between the spoiler blades located in the middle of the length direction of the base is greater than the spacing between the spoiler blades located in the middle of the length direction of the base and the spoiler blades at both ends of the length direction of the base.

[0021] According to some embodiments of the present invention, there is one driving unit, and at least a portion of the driving unit is located in a region between two adjacent spoiler blades.

[0022] According to some embodiments of the present invention, there are a plurality of driving units, and each of the driving units is connected to at least one of the spoiler blades.

[0023] According to some embodiments of the present invention, the plurality of spoiler blades are configured such that, within a first speed range, the spoiler blades located at least one of a middle portion and two ends in a length direction of the base are opened.

[0024] According to some embodiments of the present invention, within the second speed range, the spoiler blades located at both ends and the middle of the base in the length direction are all opened, the minimum value of the second speed range is greater than the minimum value of the first speed range, and the maximum value of the second speed range is less than the maximum value of the first speed range.

[0025] According to some embodiments of the present invention, within a third speed range, the spoiler blades located at both ends of the base in the length direction are opened, the maximum value of the third speed range is less than the minimum value of the second speed range, and the minimum value of the third speed range is not greater than the minimum value of the first speed range.

[0026] According to some embodiments of the present invention, within a fourth speed range, the spoiler blade located in the middle of the length direction of the base is opened, the minimum value of the fourth speed range is greater than the maximum value of the second speed range, and the maximum value of the fourth speed range is less than the maximum value of the first speed range.

[0027] According to some embodiments of the present invention, the plurality of spoiler blades are configured such that, outside the first speed range, the spoiler blades located at both ends and the middle portion of the base in the length direction are not opened.

[0028] According to some embodiments of the present invention, the spoiler blades are configured to selectively rotate to open to different angles away from the base and to close toward the base.

[0029] A vehicle according to an embodiment of the second aspect of the present invention comprises the vehicle diffuser.

[0030] According to some embodiments of the present invention, a ratio of two ends of the vehicle diffuser in a length direction to a width of the vehicle is k, wherein k satisfies: 80%≤k≤100%.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 Schematic diagram of the structure of the active diffuser with spoiler blades opened according to an embodiment of the present invention Figure 1 ;

[0034] Figure 2 Schematic diagram of the structure of the active diffuser with spoiler blades opened according to an embodiment of the present invention Figure 2 ;

[0035] Figure 3 Schematic diagram of the closed structure of the spoiler blades of the active diffuser according to an embodiment of the present invention Figure 1 ;

[0036] Figure 4 Schematic diagram of the closed structure of the spoiler blades of the active diffuser according to an embodiment of the present invention Figure 2 ;

[0037] Figure 5 is a schematic structural diagram of an active diffuser without a base according to an embodiment of the present invention;

[0038] Figure 6 is a schematic structural diagram of a base and a driving unit in an active diffuser according to an embodiment of the present invention;

[0039] Figure 7 is a schematic structural diagram of the connection between the connecting rod mechanism and the driving unit according to an embodiment of the present invention;

[0040] Figure 8 is a schematic diagram of a partial structure of the connection between the connecting rod mechanism and the driving unit according to an embodiment of the present invention;

[0041] Fig. 9 yes Figure 7 AA section view in the figure;

[0042] Fig.10 is a schematic structural diagram of a connecting rod mechanism according to an embodiment of the present invention;

[0043] Fig.11 yes Fig.10 The enlarged schematic diagram of point A in the middle;

[0044] Fig.12 is an exploded schematic diagram of the second connecting rod and the third connecting rod being connected through a ball joint according to an embodiment of the present invention;

[0045] Fig.13 is a schematic structural diagram of the cooperation between the ball head cover connected to the end of the second connecting rod and the ball head according to an embodiment of the present invention;

[0046] Fig.14 is an exploded schematic diagram of the cooperation between the ball head cover connected to the end of the second connecting rod and the ball head according to an embodiment of the present invention;

[0047] Fig.15 FIG. 1 is a partial enlargement of a local structure of a vehicle diffuser according to an embodiment of the present invention. Figure 1 ;

[0048] Fig.16 FIG. 1 is a partial enlargement of a local structure of a vehicle diffuser according to an embodiment of the present invention. Figure 2 ;

[0049] Fig.17 yes Fig.16 BB section view in the figure;

[0050] Fig.18 yes Fig.16 CC section view in the figure;

[0051] Fig.19 is a perspective view of a left spoiler blade in a vehicle diffuser according to an embodiment of the present invention;

[0052] Fig. 20 yes Fig.19 The enlarged schematic diagram of point B in the middle;

[0053] Fig.21 is a front view of a left spoiler blade in a vehicle diffuser according to an embodiment of the present invention;

[0054] Fig. 22 is a perspective view of the second spoiler blade on the left in the vehicle diffuser according to an embodiment of the present invention;

[0055] Fig.23 is a schematic structural diagram of a spoiler blade of a vehicle diffuser according to an embodiment of the present invention;

[0056] Fig.24 Schematic diagram of the state of the spoiler blades being opened and closed according to an embodiment of the present invention.

[0057] Reference numerals:

[0058] 1. base; 2. spoiler blade; 201. soft part; 2011. deformation part; 2012. groove; 2012a. first groove; 2012b. second groove; 2013. fixing part; 2014. mounting part; 2015. mounting hole; 2016. step part; 2017. rigid bushing; 2018. rotating part; 202. rigid part; 203. blade mounting bracket; 204. blade mounting seat; 3. first connecting rod; 4. second connecting rod; 5. third connecting rod; 501 , second through hole; 6, ball head; 601, first through hole; 7, ball head sleeve; 701, opening; 8, connecting assembly; 801, bolt; 802, nut; 9, driving cross bar; 10, reset member; 11, driving unit; 12, driving member; 12a, driving member stop surface; 13, swing arm; 1301, swing arm stop surface; 1302, first swing arm sleeve; 1303, second swing arm sleeve; 1304, first swing arm; 1305, second swing arm; 14, stop member; 15, limit member. DETAILED DESCRIPTION

[0059] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0060] Reference below Figure 1-Figure 24 A vehicle diffuser according to an embodiment of the present invention is described.

[0061] like Figure 1-Figure 6 As shown, the vehicle diffuser comprises: a base 1 and a plurality of spoiler blades 2 , wherein the plurality of spoiler blades 2 are disposed on the base 1 , and the spoiler blades 2 are configured to selectively rotate to open away from the base 1 and close toward the base 1 .

[0062] In this way, the opening and closing of the plurality of spoiler blades 2 can be controlled. When the vehicle is running, the spoiler blades 2 can be controlled to open away from the base 1 to achieve low wind resistance driving. Moreover, after the spoiler blades 2 are controlled to close toward the base 1, downforce can be provided to the bottom of the vehicle, thereby ensuring stable driving of the vehicle. In addition, by providing a plurality of spoiler blades 2, the processing and manufacturing of the spoiler blades 2 are simplified, and the requirements for low wind resistance and downforce of a single spoiler blade 2 can be relatively reduced, thereby reducing costs.

[0063] The vehicle diffuser according to the embodiment of the present invention can control the opening and closing of the plurality of spoiler blades 2, thereby meeting the requirements of different driving conditions and effectively improving the driving experience of the driver and passengers.

[0064] According to a further embodiment of the present invention, reference Figure 1 A plurality of spoiler blades 2 are arranged at intervals along the length direction of the base 1 .

[0065] It should be noted that the length direction of the base 1 can be the same direction as the width direction of the vehicle / the left-right direction of the vehicle, and the width direction of the base 1 can be the same direction as the length direction of the vehicle / the front-rear direction of the vehicle.

[0066] In this way, the multiple spoiler blades 2 can be arranged along the width direction of the vehicle as much as possible. When the multiple spoiler blades 2 are controlled to be open, low wind resistance driving can be achieved to a large extent; and when the multiple spoiler blades 2 are controlled to be closed, downforce can be better provided to the bottom of the vehicle, further ensuring stable driving of the vehicle.

[0067] According to a further embodiment of the present invention, reference Figure 5 The area of ​​the spoiler blades 2 located in the middle of the length direction of the base 1 is smaller than the areas of the spoiler blades 2 located at both ends of the length direction of the base 1 .

[0068] In this way, the spoiler blades 2 at both ends of the base 1 in the length direction can play a major role in blocking air compared to the spoiler blades 2 located in the middle of the length direction of the base 1, thereby effectively ensuring the stability of the vehicle when driving at high speed. Moreover, when the spoiler blades 2 are closed, it can ensure that more air passes quickly from the middle of the length direction of the base 1, thereby increasing the downforce of the vehicle and thus improving the driving stability of the vehicle.

[0069] According to a further embodiment of the present invention, reference Figure 5 The spoiler blades 2 located in the middle of the length direction of the base 1 are drivingly connected to the base 1 through a swing arm 13; the spoiler blades 2 located at both ends of the length direction of the base 1 are drivingly connected to the base 1 through multiple swing arms 13.

[0070] With such arrangement, the spoiler blades 2 located in the middle of the length direction of the base 1 have a smaller area and can be driven and connected to the base 1 through a swing arm 13. The spoiler blades 2 located at both ends of the length direction of the base 1 have a larger area and are driven and connected to the base 1 through multiple swing arms 13. This ensures that the spoiler blades 2 located at both ends of the length direction of the base 1 can be opened and closed smoothly, and the stability of the spoiler blades 2 during movement can be ensured.

[0071] According to some optional embodiments of the present invention, reference Figure 5 The width of the spoiler blades 2 located in the middle of the length direction of the base 1 in the length direction of the base 1 is smaller than the width of the spoiler blades 2 located at both ends of the length direction of the base 1 in the length direction of the base 1.

[0072] In this way, the spoiler blades 2 at both ends of the base 1 in the length direction can play a major role in blocking air compared to the spoiler blades 2 located in the middle of the length direction of the base 1. Moreover, when the spoiler blades 2 are closed, more air can be ensured to pass quickly from the middle of the length direction of the base 1, thereby increasing the downforce of the vehicle and thus improving the driving stability of the vehicle.

[0073] According to a further embodiment of the present invention, reference Figure 5 The length of the spoiler blades 2 located in the middle of the length direction of the base 1 in the width direction of the base 1 is greater than the length of the spoiler blades 2 located at both ends of the length direction of the base 1 in the width direction of the base 1.

[0074] With such arrangement, when the spoiler blades 2 are closed, the height dimension of the projection shape of the spoiler blades 2 located in the middle in the length direction of the base 1 along the front surface of the vehicle is larger than the height dimension of the projection shape of the spoiler blades 2 located at both ends in the length direction of the base 1 along the front surface of the vehicle. This can effectively guide the air to pass through the rear of the vehicle faster, increase the downforce at the rear of the vehicle, and thus ensure that the vehicle can travel stably.

[0075] According to a further embodiment of the present invention, reference Figure 1 , one end of the plurality of spoiler blades 2 is connected to the base 1. In this way, the other end of the plurality of spoiler blades 2 rotates relative to the one end of the plurality of spoiler blades 2, thereby opening away from the base 1 and closing toward the base 1.

[0076] It should be noted that one end of the spoiler blades 2 refers to one end of the spoiler blades 2 along the width direction of the base 1 , and the other end of the spoiler blades 2 refers to the other end of the spoiler blades 2 along the width direction of the base 1 .

[0077] According to a further embodiment of the present invention, reference Figure 1 A plurality of spoiler blades 2 are arranged side by side on the base 1, and a connection center point between one end of the plurality of spoiler blades 2 and the base 1 is located on the same straight line.

[0078] In this way, the plurality of spoiler blades 2 are arranged side by side on the base 1, so that one end of the plurality of spoiler blades 2 can be arranged on the same straight line with the connection center point of the base 1, which is convenient for manufacturing and installation, and can effectively ensure that the requirements for downforce and low wind resistance during vehicle driving are met. In addition, when the plurality of spoiler blades 2 move synchronously, it can be ensured that the plurality of spoiler blades 2 can be completely synchronized during the simultaneous opening and closing process without movement differences, thereby ensuring the downforce and wind resistance reduction effect.

[0079] According to a further embodiment of the present invention, reference Figure 5One end of the plurality of spoiler blades 2 extends horizontally along the length direction of the base 1, and the other end of the plurality of spoiler blades 2 extends obliquely in a direction from the middle of the length direction of the base 1 toward the end of the length direction of the base 1 toward the above-mentioned one end of the spoiler blade 2.

[0080] With such arrangement, when the multiple spoiler blades 2 are closed, the projection shape of the upper ends of the multiple spoiler blades 2 along the height direction of the vehicle on the rear surface of the vehicle is a roughly "inverted V" structure, which can well guide the air through the rear of the vehicle and increase the downforce at the rear of the vehicle, thereby ensuring that the vehicle can travel stably.

[0081] According to a further embodiment of the present invention, reference Figure 5 , the width of one end of the plurality of spoiler blades 2 in the length direction of the base 1 is greater than the width of the other end of the plurality of spoiler blades 2 in the length direction of the base 1. In this way, the other end of the plurality of spoiler blades 2 can be extended obliquely toward the direction close to the one end of the spoiler blade 2, thereby guiding the air to pass through the rear of the vehicle well, thereby ensuring that the vehicle can travel stably.

[0082] According to some optional embodiments of the present invention, reference Figure 1 The plurality of spoiler blades 2 are symmetrical in the length direction of the base 1. Such an arrangement can ensure that when the plurality of spoiler blades 2 are opened, the negative pressure generated at the rear of the vehicle is relatively balanced in the left and right directions, thereby avoiding the phenomenon of the vehicle drifting left and right when driving at high speed and ensuring the driving stability of the vehicle.

[0083] According to some embodiments of the present invention, reference Figure 2 and Figure 4 The plurality of spoiler blades 2 are configured such that the spoiler blades 2 rotate synchronously to open away from the base 1 , and close synchronously toward the base 1 .

[0084] Such an arrangement facilitates the control of the plurality of spoiler blades 2, so that low wind resistance driving is achieved when the plurality of spoiler blades 2 are synchronously opened, and downforce is provided to the vehicle when the plurality of spoiler blades 2 are synchronously closed, thereby ensuring stable driving of the vehicle.

[0085] Of course, multiple spoiler blades 2 can also rotate asynchronously. For example, multiple spoiler blades 2, or some of the multiple spoiler blades 2 can be independently controlled. In this way, the size of the airflow introduced into the tail of the vehicle during driving can be adjusted in real time to better achieve the effect of reducing wind resistance.

[0086] According to a further embodiment of the present invention, reference Figure 1 , Figure 3 and Figure 6As shown, the vehicle diffuser also includes: at least one driving unit 11, the driving unit 11 is arranged on the base 1, the driving unit 11 is connected to the spoiler blade 2, and the driving unit 11 is used to drive the spoiler blade 2 to open and close. In this way, by setting the driving unit 11, the spoiler blade 2 can be automatically opened and closed.

[0087] According to a further embodiment of the present invention, Figure 6 As shown, the drive unit 11 and the spoiler blades 2 are located on the same side of the base 1 .

[0088] It should be noted that the same side of the base 1 refers to the same side in the thickness direction of the base 1 .

[0089] For example, the drive unit 11 and the spoiler blades 2 are located on the side of the base 1 in the height direction close to the bottom of the vehicle, which can protect the drive unit 11 and the spoiler blades 2 and prevent them from being scratched during driving of the vehicle.

[0090] According to a further embodiment of the present invention, the spacing between the spoiler blades 2 located in the middle of the length direction of the base 1 is greater than the spacing between the spoiler blades 2 located in the middle of the length direction of the base 1 and the spoiler blades 2 at both ends of the length direction of the base 1.

[0091] In this way, the drive unit 11 can be installed between the spoiler blades 2 located in the middle of the length direction of the base 1. In addition, when the plurality of spoiler blades 2 are closed, the air at the bottom of the vehicle can be well guided to pass through the middle of the bottom of the vehicle as much as possible, thereby increasing the downforce of the vehicle and ensuring stable driving of the vehicle.

[0092] According to some optional embodiments of the present invention, Figure 1 There is one driving unit 11, and at least part of the driving unit 11 is located in the area between two adjacent spoiler blades 2. In this way, the driving unit 11 can be used to drive multiple spoiler blades 2 to achieve synchronous opening and closing of the multiple spoiler blades 2, which is easy to operate.

[0093] According to some other optional embodiments of the present invention, there are multiple drive units 11 , and each drive unit 11 is connected to at least one spoiler blade 2 .

[0094] In this way, each drive unit 11 can control the opening and closing of at least one of the above-mentioned spoiler blades 2, or can control the synchronous opening and closing of two spoiler blades 2 at the same time, or can also control the synchronous opening and closing of three spoiler blades 2, etc. ... Thus, individual control of multiple spoiler blades 2 can be achieved, so that multiple spoiler blades 2 can be opened to different angles.

[0095] According to some embodiments of the present invention, the plurality of spoiler blades 2 are configured as follows:

[0096] In the first speed range, the spoiler blades 2 located at least at one of the middle and both ends in the length direction of the base 1 are opened.

[0097] With such arrangement, when the vehicle travels within the first speed range, the spoiler blades 2 located at least at one of the middle and both ends in the length direction of the base 1 are opened, thereby ensuring that the vehicle can travel stably under different working conditions.

[0098] Optionally, the first speed range is 5km / h-300km / h.

[0099] With such arrangement, when the vehicle travels within a speed range of 5 km / h-300 km / h, the spoiler blades 2 located at least at one of the middle and both ends in the length direction of the base 1 are opened, thereby ensuring that the vehicle travels with low wind resistance.

[0100] Further optionally, the first speed range is 50km / h-300km / h.

[0101] With such arrangement, when the vehicle travels within a speed range of 50 km / h-300 km / h, the spoiler blades 2 located at least at one of the middle and both ends in the length direction of the base 1 are opened, thereby further ensuring low wind resistance driving of the vehicle and, to a certain extent, ensuring that the vehicle diffuser achieves the best possible effect under reasonable working conditions.

[0102] In the second speed range, the spoiler blades 2 located at both ends and the middle of the base 1 in the length direction are opened, the minimum value of the second speed range is greater than the minimum value of the first speed range, and the maximum value of the second speed range is less than the maximum value of the first speed range.

[0103] Optionally, the second speed range is 50km / h-130km / h. In this way, when the vehicle travels at a speed within 50km / h-130km / h, all of the spoiler blades 2 are opened to achieve the vehicle's lowest wind resistance travel to the greatest extent.

[0104] In the third speed range, the spoiler blades 2 at both ends of the base 1 in the length direction are opened, the maximum value of the third speed range is less than the minimum value of the second speed range, and the minimum value of the third speed range is not greater than the minimum value of the first speed range.

[0105] Optionally, the third speed range is 130km / h-200km / h. With such a configuration, when the vehicle travels at a speed within the range of 130km / h-200km / h, the spoiler blades 2 located at both ends of the length direction of the base 1 are opened, so that a portion of the air passes through the middle of the vehicle in the width direction, and another portion of the air is blocked by both ends of the vehicle in the width direction, which can increase the downforce of the vehicle while achieving low wind resistance travel, thereby maintaining stable travel of the vehicle.

[0106] In the fourth speed range, the spoiler blades located in the middle of the length direction of the base are opened, the minimum value of the fourth speed range is greater than the maximum value of the second speed range, and the maximum value of the fourth speed range is less than the maximum value of the first speed range.

[0107] Optionally, the fourth speed range is 200km / h-300km / h. With such a configuration, when the vehicle travels at a speed within 200km / h-300km / h, the spoiler blades 2 located in the middle of the length direction of the base 1 are opened, so that part of the air is blocked by the middle of the width direction of the vehicle, and the other part of the air is passed by both ends of the width direction of the vehicle, which can provide good downforce at both ends of the vehicle, thereby improving the grip of the rear of the vehicle, thereby ensuring that the vehicle is not prone to drifting left and right.

[0108] According to a further embodiment of the present invention, the plurality of spoiler blades 2 are configured as follows:

[0109] Outside the first speed range, the spoiler blades 2 located at both ends and the middle of the base 1 in the length direction are not opened.

[0110] With such arrangement, when the vehicle travels outside the first speed range, the spoiler blades 2 located at both ends and the middle of the base 1 in the length direction are not opened, thereby providing downforce to the vehicle and ensuring stable driving of the vehicle.

[0111] According to a further embodiment of the present invention, the spoiler blades 2 are configured to selectively rotate to open to different angles away from the base 1 and to close toward the base 1 .

[0112] With such an arrangement, the spoiler blades 2 can be controlled to open to different angles according to different vehicle operating conditions, thereby achieving diversified airflow guidance and a more obvious effect of reducing wind resistance.

[0113] like Figure 7-Figure 14 As shown, the vehicle diffuser includes: a linkage mechanism.

[0114] The connecting rod mechanism includes a first connecting rod 3, a third connecting rod 5 and a second connecting rod 4 connected in sequence. The two ends of the second connecting rod 4 are respectively connected to the first connecting rod 3 and the third connecting rod 5 through ball joints. The end of the first connecting rod 3 away from the second connecting rod 4 is rotatably connected to the driving unit 11, and the end of the third connecting rod 5 away from the second connecting rod 4 is connected to the spoiler blade 2.

[0115] By applying the above technical solution, the driving unit 11 drives the first connecting rod 3 to rotate, so that the first connecting rod 3 drives the second connecting rod 4 to rotate, and the second connecting rod 4 drives the third connecting rod 5 to rotate, and finally drives the spoiler blade 2 to move relative to the base 1.

[0116] The connecting rod mechanism of the present application connects the second connecting rod 4 and the first connecting rod 3 through a ball joint, and connects the second connecting rod 4 and the third connecting rod 5 through a ball joint. Based on the characteristics of the ball joint that can rotate and swing freely in multiple directions, the relative rotation range between the second connecting rod 4 and the first connecting rod 3 or the relative rotation range between the second connecting rod 4 and the third connecting rod 5 can be autonomously adjusted in multiple directions. Therefore, regardless of whether the connecting rod mechanism is moving or not, the motion stress between the second connecting rod 4 and the first connecting rod 3 or the third connecting rod 5 can be reduced, thereby reducing the changes in the structural parameters of the second connecting rod 4, the first connecting rod 3 and the third connecting rod 5, so that the motion stability of the vehicle diffuser using the connecting rod mechanism is guaranteed to a certain extent.

[0117] Thus, by arranging that the second connecting rod 4 is respectively connected to the first connecting rod 3 and the third connecting rod 5 through a ball joint, the movement stability of the vehicle diffuser can be effectively ensured. When the vehicle diffuser is applied to a vehicle, even if a large external force is applied when the vehicle is traveling at high speed, the movement of the connecting rod mechanism is stable, thereby effectively ensuring the smooth movement of the spoiler blade 2.

[0118] It should be noted that, in the technical solution of the present application, the concept of ball joint connection refers to the movement mode of the ball joint connection based on mechanical principles.

[0119] Furthermore, the ball pair includes a ball head 6 and a ball head sleeve 7, the ball head 6 is rotatably arranged in the ball head sleeve 7, one of the ball head 6 and the ball head sleeve 7 is connected to the second connecting rod 4, and the other of the ball head 6 and the ball head sleeve 7 is connected to the first connecting rod 3 or the third connecting rod 5.

[0120] refer to Figure 11-Figure 14 As shown, the ball head 6 can be connected to the second connecting rod 4, and the ball head cover 7 is connected to the first connecting rod 3 or the third connecting rod 5, or the ball head cover 7 is connected to the second connecting rod 4, and the ball head 6 is connected to the first connecting rod 3 or the third connecting rod 5. In this way, the ball head 6 and the ball head cover 7 are connected and matched, and have the characteristics of strong rotation stability, which further improves the service life of the connecting rod mechanism.

[0121] Furthermore, the ball pair may also be other ball pair structures such as a ball head 6 bearing, a universal joint connector, etc.

[0122] Furthermore, when the axis of the ball head 6 is colinear with the axis of the ball head sleeve 7 , both ends of the ball head 6 protrude from the ball head sleeve 7 along the axis direction of the ball head 6 .

[0123] refer to Figure 11-Figure 14As shown, by protruding the two ends of the ball head 6 out of the ball head sleeve 7, firstly, the rotation range of the ball head sleeve 7 relative to the ball head 6 and the rotation range of the ball head 6 relative to the ball head sleeve 7 can be increased, thereby better reducing the parameter changes of the second connecting rod 4, the first connecting rod 3 and the third connecting rod 5; secondly, it can facilitate the connection of the ball head 6 with the second connecting rod 4 in the connecting rod mechanism, or with the first connecting rod 3 or the third connecting rod 5.

[0124] Furthermore, the ball head cover 7 is connected to the end of the second connecting rod 4. The connecting rod mechanism further comprises: a connecting assembly 8, through which the ball head 6 is connected to the first connecting rod 3 or the third connecting rod 5.

[0125] refer to Figure 11-13 In an optional embodiment disclosed, the ball head cover 7 is respectively connected to the two end portions of the second connecting rod 4. Further optionally, the ball head cover 7 is integrally formed with the second connecting rod 4, thereby making the second connecting rod 4 and the ball pair form an integral structure, which is convenient for processing. Then, the ball head 6 located in the ball head cover 7 is connected to the first connecting rod 3 or the third connecting rod 5 through the connecting assembly 8.

[0126] Of course, in some other optional embodiments of the present invention, the ball head sleeve 7 can also be connected to the ends of the first connecting rod 3 and the third connecting rod 5 respectively, and the two ends of the second connecting rod 4 are respectively connected to the ball head 6 located in the ball head sleeve 7 through the connecting assembly 8 (not shown in the figure).

[0127] Further, a first through hole 601 is formed on the ball head 6, and a second through hole 501 is formed on the first connecting rod 3 or the third connecting rod 5. The connecting assembly 8 includes a bolt 801 and a nut 802, and the bolt 801 passes through the first through hole 601 and the second through hole 501 and is threadedly connected with the nut 802.

[0128] refer to Fig.11 and Fig.12 In a disclosed embodiment, a bolt 801 is passed through the first through hole 601 of the ball head 6 and the second through hole 501 of the first connecting rod 3 or the third connecting rod 5 in sequence, and then a nut 802 is threadedly engaged with the bolt 801 to fix the first connecting rod 3 or the third connecting rod 5 to the ball head 6 at the end of the second connecting rod 4. The operation is simple and the installation is convenient.

[0129] Furthermore, the ball head cover 7 is a first self-lubricating plastic material piece, and the ball head 6 is a second self-lubricating plastic material piece, and the first self-lubricating plastic material piece is different from the second self-lubricating plastic material piece.

[0130] With such a configuration, by using different self-lubricating plastic materials for the ball head cover 7 and the ball head 6, while achieving smooth relative rotation between the ball head 6 and the ball head cover 7, the friction and wear between the relatively rotating ball head 6 and the ball head cover 7 can also be limited, thereby avoiding the risk of severe wear between the ball head 6 and the ball head cover 7.

[0131] Further, the wear resistance of the first self-lubricating plastic material piece is lower than the wear resistance of the second self-lubricating plastic material piece.

[0132] That is to say, the ball head 6 is more wear-resistant than the ball head cover 7. When the ball head cover 7 is more seriously worn than the ball head 6, only the ball head cover 7 needs to be replaced, which is convenient for operation and saves maintenance costs.

[0133] Furthermore, the first self-lubricating plastic material piece is a polyoxymethylene material piece, and the second self-lubricating plastic material piece is a polyphenylene sulfide material piece.

[0134] Furthermore, the second connecting rod 4 and the ball head cover 7 are an integrally formed structural component.

[0135] In this way, the second connecting rod 4 and the ball head cover 7 form an integrated structure, which has high structural strength and is easy to install.

[0136] Furthermore, there are multiple spoiler blades 2 , and the connecting rod mechanism further includes: a driving cross rod 9 , which is connected to an end of the third connecting rod 5 away from the second connecting rod 4 , and the driving cross rod 9 is connected to the multiple spoiler blades 2 .

[0137] refer to Fig. 9 and Fig.10 As shown, a driving cross bar 9 is connected to one end of the third connecting rod 5 away from the second connecting rod 4 , and a plurality of spoiler blades 2 are connected to the driving cross bar 9 .

[0138] Combination Figure 7-Figure 9 As shown, the driving unit 11 drives the first connecting rod 3 to rotate, so that the first connecting rod 3 drives the second connecting rod 4 to rotate, and the second connecting rod 4 drives the third connecting rod 5 to rotate, and then the third connecting rod 5 drives the driving cross rod 9 to rotate synchronously, and finally drives the spoiler blade 2 to move relative to the base 1, thereby realizing the opening and closing of the spoiler blade 2.

[0139] The driving unit 11 includes an actuator fixed on the base 1 and an output shaft connected to the actuator, and the output shaft is drivingly connected to the first connecting rod 3. The actuator controls the output shaft to rotate to drive the first connecting rod 3 to rotate. The actuator can be a motor in the prior art. The actuator is provided with program instructions to control the output shaft to stop after rotating to any angle, thereby controlling the spoiler blade 2 to rotate to any angle.

[0140] Furthermore, the driving unit 11 is disposed between two adjacent spoiler blades 2 .

[0141] In this way, the stability of the movement of the multiple spoiler blades 2 can be effectively guaranteed, and the driving unit 11 can drive the multiple spoiler blades 2 to move synchronously through the connecting rod mechanism, thereby realizing the synchronous control of the multiple spoiler blades 2. Of course, there can be multiple driving units 11, and the multiple driving units 11 can respectively drive the multiple spoiler blades 2 to move. It can be understood that whether the multiple spoiler blades 2 move synchronously or asynchronously can be specifically set according to actual requirements to better meet practical applications.

[0142] Specifically, when there are two spoiler blades 2, the drive unit 11 is disposed between the two spoiler blades 2; when there are three spoiler blades 2, one drive unit 11 can be disposed between two spoiler blades 2; when there are four spoiler blades 2, one drive unit 11 can still be disposed between two spoiler blades 2, or two drive units 11 can be used, and the four spoiler blades 2 are divided into two groups on the left and right sides based on the center of the length direction of the base 1, and each group of spoiler blades 2 is matched with one drive unit 11, so that the dynamic control of the multiple spoiler blades 2 can be improved. Of course, more spoiler blades 2 can be provided, and the drive units 11 can be arranged on the base 1 according to the specific control method, so as to implement dynamic control on the multiple spoiler blades 2.

[0143] like Figure 15-18 As shown, the vehicle diffuser further comprises: a restoring member 10 .

[0144] The spoiler blade 2 is rotatable between an open position and a closed position relative to the base 1. The driving unit 11 is provided between the base 1 and the spoiler blade 2. The driving unit 11 is used to drive the spoiler blade 2 to rotate from the closed position to the open position. The reset member 10 is provided between the base 1 and the spoiler blade 2. The reset member 10 is used to provide a restoring force for the spoiler blade 2 to rotate from the open position to the closed position.

[0145] In this way, when the spoiler blade 2 needs to be opened, the driving unit 11 drives the spoiler blade 2 to rotate from the closed position to the open position; when the spoiler blade 2 is closed, the spoiler blade 2 is driven to rotate from the open position to the closed position by the reset member 10, which can effectively avoid the problem that the spoiler blade 2 cannot be completely closed due to failure of the driving unit 11 or the moment when the driving unit 11 stops running. In other words, the spoiler blade 2 is rotated from the closed position to the open position and the spoiler blade 2 is rotated from the open position to the closed position by different parts respectively. By adopting the reset member 10, the process of the spoiler blade 2 rotating from the open position to the closed position can be separated from the control of the driving unit 11, so that the spoiler blade 2 is completely closed by the reset member 10.

[0146] The spoiler blade 2 rotates from the open position to the closed position, and the rotation angle of the spoiler blade 2 is smaller than the rotation angle of the drive unit 11. In this way, when the spoiler blade 2 needs to be closed, the spoiler blade 2 rotates from the open position to the closed position under the action of the reset member 10, and the drive unit 11 can rotate together at this time. When the spoiler blade 2 reaches the closed position, the drive unit 11 continues to rotate, that is, the drive unit 11 can provide an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 10.

[0147] According to the vehicle diffuser of the embodiment of the present invention, the spoiler blade 2 is rotated from the closed position to the open position and the spoiler blade 2 is rotated from the open position to the closed position by different parts respectively, so that the rotation angle of the spoiler blade 2 is smaller than the rotation angle of the driving unit 11, that is, the driving unit 11 can provide an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 10.

[0148] According to a further embodiment of the present invention, after the spoiler blades 2 rotate to the closed position, the drive unit 11 continues to rotate by a predetermined angle, and after the spoiler blades 2 rotate to the open position, the drive unit 11 is in a stopped state.

[0149] In this way, when the spoiler blade 2 rotates to the closed position, the driving unit 11 continues to rotate by a predetermined angle, that is, the driving unit 11 provides an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 10. In addition, when the spoiler blade 2 rotates to the open position, the driving unit 11 no longer rotates, which saves the driving energy of the driving unit 11 while ensuring that the spoiler blade 2 can be fully opened. The driving unit 11 may have a built-in program instruction to control the spoiler blade 2 to rotate to a specified angle.

[0150] According to a further embodiment of the present invention, the spoiler blades 2 include a plurality of spoiler blades, and after all spoiler blades 2 rotate to the closed position, the drive unit 11 continues to rotate by a predetermined angle. In this way, it can be ensured that all spoiler blades 2 can rotate to the closed position to achieve complete closure, and the impact on the drive unit 11 can be further effectively avoided.

[0151] According to some specific embodiments of the present invention, referring to Figure 5-Figure 15 The vehicle diffuser also includes: a driving member 12, a driving cross bar 9 drivingly connected to the driving member 12, and the driving member 12 and the spoiler blade 2 can be abutted, the driving unit 11 moves in a first direction, the driving cross bar 9 rotates, so that the driving member 12 and the spoiler blade 2 abut to rotate the spoiler blade 2 from the closed position to the open position; the driving unit 11 moves in a second direction, the driving cross bar 9 rotates, and the spoiler blade 2 rotates from the open position to the closed position under the restoring force of the reset member 10, and the first direction and the second direction are opposite.

[0152] For example, the first direction may be clockwise, and the output shaft of the driving unit 11 may rotate clockwise to drive the driving member 12 to stop against the spoiler blade 2, so that the spoiler blade 2 rotates from the closed position to the open position; the driving unit 11 moves in the second direction, for example, the output shaft of the driving unit 11 rotates counterclockwise, and the spoiler blade 2 rotates from the open position to the closed position under the action of the reset member 10. Thus, by rotating the driving unit 11 in the first direction and the second direction, the driving member 12 and the spoiler blade 2 can be selectively stopped.

[0153] In addition, a plurality of driving members 12 may be installed on the driving cross bar 9 so that the plurality of driving members 12 respectively drive the plurality of spoiler blades 2 to rotate from the closed position to the open position, thereby ensuring that the plurality of spoiler blades 2 can rotate to the open position.

[0154] Further, the spoiler blade 2 rotates from the open position to the closed position, and the rotation angle of the spoiler blade 2 is smaller than the rotation angle of the driving unit 11 .

[0155] In this way, during the process of driving the spoiler blade 2 to rotate from the open position to the closed position by the reset member 10, the drive unit 11 can rotate together. When the spoiler blade 2 reaches the closed position, the drive unit 11 continues to rotate, that is, the drive unit 11 provides an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 10.

[0156] Furthermore, after the spoiler blades 2 rotate to the closed position, the driving unit 11 continues to rotate by a predetermined angle so that the driving member 12 continues to rotate relative to the spoiler blades 2 .

[0157] In this way, after the spoiler blades 2 are closed, the driving unit 11 drives the driving member 12 to continue rotating, which can avoid the impact on the driving member 12 at the moment of the spoiler blades 2 resetting, thereby avoiding the impact on the driving unit 11 and extending the service life of the driving unit 11.

[0158] Furthermore, after the spoiler blades 2 rotate to the closed position, the driving unit 11 continues to rotate by a predetermined angle to separate the driving member 12 from the spoiler blades 2 .

[0159] In this way, after the spoiler blades 2 are closed, the drive unit 11 drives the drive member 12 to separate from the spoiler blades 2, which can further avoid the impact on the drive member 12 at the moment of the spoiler blades 2 being reset, thereby further avoiding the impact on the drive unit 11 and further extending the service life of the drive unit 11.

[0160] The vehicle diffuser also includes a swing arm 13, which is sleeved on the driving cross bar 9. The swing arm 13 is rotatable around the circumference of the driving cross bar 9. The swing arm 13 is connected to the spoiler blade 2. The driving unit 11 moves in a first direction, and the driving cross bar 9 rotates to drive the driving member 12 and the swing arm 13 to stop so that the swing arm 13 swings from the first position to the second position, so that the spoiler blade 2 rotates from the closed position to the open position; the driving unit 11 moves in the second direction, and the swing arm 13 drives the spoiler blade 2 to rotate from the open position to the closed position under the action of the restoring force of the reset member 10. The first direction and the second direction are opposite.

[0161] In this way, the driving unit 11 moves in the first direction, the driving cross bar 9 rotates, and the driving member 12 rotates synchronously with the driving cross bar 9. At the same time, the swing arm 13 starts to swing around the circumference of the driving cross bar 9 from the first position. When the driving member 12 rotates to stop against the swing arm 13, the swing arm 13 cannot continue to swing due to the stopping force of the driving member 12. At this time, the swing arm 13 is in the second position, thereby realizing the swing arm 13 from the first position to the second position, so that the spoiler blade 2 can be swung from the closed position to the open position.

[0162] Thus, by driving the cross bar 9 to rotate to drive the driving member 12 to stop and cooperate with the swing arm 13, the swing arm 13 is swung from the first position to the second position, so that the spoiler blade 2 of the vehicle diffuser can be swung from the closed position to the open position. Compared with the fixed spoiler blade 2 in the diffuser of the prior art, the present invention provides a motion mechanism for the vehicle diffuser. When the spoiler blade 2 of the diffuser has different position requirements, the motion mechanism of the present invention can drive the spoiler blade 2 to move to the required position to meet the needs of the vehicle using the diffuser under different working conditions. And the motion mechanism of the present invention drives the driving member 12 to stop and cooperate with the swing arm 13 by driving the cross bar 9 to rotate to achieve power transmission, which can make the spoiler blade 2 move smoothly during the entire movement process.

[0163] The driving unit 11 moves in the second direction, the swing arm 13 separates from the driving member 12, and the swing arm 13 drives the spoiler blade 2 to rotate from the open position to the closed position under the restoring force of the reset member 10, and the first direction and the second direction are opposite. Thus, the spoiler blade 2 is connected to the driving member 12 through the swing arm 13 so as to effectively ensure the opening and closing of the spoiler blade 2.

[0164] Furthermore, after the spoiler blade 2 rotates to the closed position, the driving unit 11 continues to rotate by a predetermined angle so that the driving member 12 continues to rotate relative to the swing arm 13 .

[0165] In this way, after the spoiler blades 2 are closed, the driving member 12 continues to rotate relative to the swing arm 13, which can avoid the swing arm 13 driving the spoiler blades 2 to reset and cause an impact on the driving member 12, thereby extending the service life of the driving unit 11.

[0166] Furthermore, after the spoiler blades 2 rotate to the closed position, the driving unit 11 continues to rotate by a predetermined angle to separate the driving member 12 from the swing arm 13. In this way, after the spoiler blades 2 are closed, the driving unit 11 drives the driving member 12 to separate from the swing arm 13, which can avoid the swing arm 13 driving the spoiler blades 2 to reset and generate an impact on the driving member 12, thereby extending the service life of the driving unit 11.

[0167] Optionally, the predetermined angle is α, wherein α satisfies: 0°<α≤10°. In this way, after the spoiler blades 2 are closed, the drive unit 11 continues to rotate at an angle greater than 0° and within 10°, so that the drive member 12 and the swing arm 13 can be separated, thereby avoiding impact on the drive member 12 and the drive unit 11, and improving the response speed and saving energy. If the rotation angle is greater than °, resulting in excessive separation between the drive member 12 and the swing arm 13, when the spoiler blades 2 need to be opened again, the drive unit 11 needs to be rotated first until the drive member 12 is in contact with the swing arm 13, and then continue to rotate until the drive member 12 and the swing arm 13 are in a stop connection, resulting in a longer entire process from issuing an instruction to open the spoiler blades 2 to the spoiler blades 2 being opened.

[0168] Further optionally, α satisfies: 3°≤α≤7°. In this way, the driving member 12 and the swing arm 13 can be separated to avoid impact on the driving member 12 and the driving unit 11, and the action sensitivity of the spoiler blade 2 when opening can be ensured.

[0169] According to a further embodiment of the present invention, the driving member 12 has a driving member abutment surface 12a, and the swing arm 13 has a swing arm abutment surface 1301, and the swing arm abutment surface 1301 and the driving member abutment surface 12a are separably matched, and the swing arm abutment surface 1301 and the driving member abutment surface 12a abut to rotate the spoiler blade 2 from the closed position to the open position. In this way, by abutting the swing arm abutment surface 1301 and the driving member abutment surface 12a, it can be ensured that the swing arm 13 and the driving member 12 are reliably abutted and connected, thereby effectively driving the spoiler blade 2 to rotate from the closed position to the open position.

[0170] Further, the swing arm abutment surface 1301 and the driving member abutment surface 12a are adapted to abut against each other in the radial direction of the driving cross bar 9 so that the swing arm 13 swings from the first position to the second position. Fig.17As shown, since the swing arm 13 is movably sleeved on the driving cross bar 9, when the driving cross bar 9 drives the driving member 12 to rotate until it abuts against the swing arm 13, the swing arm abutment surface 1301 and the driving member abutment surface 12a abut against each other along the radial direction of the driving cross bar 9. It can be understood that the contact surface formed by the swing arm abutment surface 1301 and the driving member abutment surface 12a abutting against each other is arranged around the outer peripheral surface in the radial direction of the driving cross bar 9, and further, the formed contact surface can be arranged tangentially to the outer peripheral surface, so that a reliable abutment force can be provided for the swing arm 13, and the spoiler blade 2 can be opened away from the base 1.

[0171] Optionally, the swing arm abutment surface 1301 and the drive member abutment surface 12a are respectively formed as planes. Fig.17 As shown, the swing arm abutment surface 1301 and the driving member abutment surface 12a are both planes, which increases the abutment connection area between the swing arm 13 and the driving member 12, and further improves the reliability of the abutment connection between the swing arm 13 and the driving member 12.

[0172] Optionally, the driving member 12 is a cam. In this way, the cam has a simple structure and is convenient to design, and can satisfy the desired movement of the spoiler blade 2. Specifically, when the driving unit 11 moves in a first direction, the driving unit 11 drives the cam to stop against the spoiler blade 2. When the driving unit 11 moves in a second direction, the cam separates from the spoiler blade 2, so that the spoiler blade 2 rotates from the open position to the closed position under the action of the reset member 10. For example, Fig.17 In the example, the cam has an arc end and a tip. When the driving cross bar 9 drives the cam to rotate until the side of its tip abuts against the swing arm 13, the swing arm 13 can be smoothly swung from the first position to the second position, thereby ensuring that the spoiler blade 2 opens smoothly.

[0173] Optionally, the reset member 10 is a reset torsion spring, which is sleeved on the driving crossbar 9, and the two ends of the reset member 10 are respectively abutted against the swing arm 13 and the base 1. In this way, flexible swinging can be achieved during the swinging opening and closing process, making the swinging smoother, more stable, less impactful and less noisy, and the flexible swinging opening and closing can effectively prevent users from being pinched during use. But it is not limited to this.

[0174] It can be understood that when the spoiler blade 2 is closed, the reset torsion spring can provide a pre-tightening torque that makes its two ends stop against the swing arm 13 and the base 1 respectively. When the spoiler blade 2 needs to be opened, the drive unit 11 needs to overcome the pre-tightening torque of the reset torsion spring, that is, the drive unit 11 drives the driving cross bar 9 to swing, so that the driving member 12 stops against the swing arm 13, so that the end of the reset torsion spring that stops against the base 1 is away from the base 1, and the reset torsion spring undergoes elastic deformation under force. When the spoiler blade 2 needs to be closed, the drive unit 11 no longer applies a force to drive the driving cross bar 9 to rotate. At this time, the reset torsion spring provides a restoring force when the spoiler blade 2 is closed, and the spoiler blade 2 rotates to the closed position under the action of the restoring force of the reset torsion spring. In this way, the number of coils of the reset torsion spring can be designed according to the size of the spoiler blade 2 to adjust the size of the restoring force of the reset torsion spring, which can ensure the automatic closing of the spoiler blade 2.

[0175] Furthermore, a stopper 14 is provided on the driving cross bar 9, and the reset member 10 is located between the stopper 14 and the swing arm 13 to limit the axial movement of the reset member 10 in the driving cross bar 9. In this way, the reset member 10 can be ensured to be axially stable in the driving cross bar 9, thereby ensuring that one end of the reset member 10 can effectively stop against the swing arm 13.

[0176] Furthermore, the swing arm 13 includes a first swing arm sleeve 1302 and a second swing arm sleeve 1303 which are arranged at intervals. The swing arm 13 is sleeved on the driving cross bar 9 through the first swing arm sleeve 1302 and the second swing arm sleeve 1303 , and the driving member 12 is located between the first swing arm sleeve 1302 and the second swing arm sleeve 1303 .

[0177] In this way, a matching space between the driving member 12 and the swing arm 13 is defined between the first swing arm sleeve 1302 and the second swing arm sleeve 1303, and the driving member 12 is arranged in the matching space. In the process of the driving member 12 pushing the swing arm 13 to swing from the above-mentioned first position to the above-mentioned second position, the first swing arm sleeve 1302 and the second swing arm sleeve 1303 both rotate circumferentially around the driving cross bar 9, so that the overall force of the swing arm 13 is balanced, which can further effectively ensure the smooth movement of the swing arm 13.

[0178] Furthermore, the vehicle diffuser further includes: a stopper 15, which passes through the driving cross bar 9 and the driving member 12 to fix the driving member 12 on the driving cross bar 9. In this way, the driving member 12 can be fixed on the driving cross bar 9 through the stopper 15, so that the driving member 12 can rotate synchronously with the driving cross bar 9, so that when the driving member 12 stops against the swing arm 13, the swing arm 13 can be driven to swing.

[0179] Optionally, the stopper 15 is an elastic cylindrical pin, and the driving member 12 is fixed to the driving cross bar 9 by interference fit through the stopper 15. In this arrangement, by adopting the elastic cylindrical pin, since the elastic cylindrical pin has good elasticity and shear resistance, while ensuring that the driving member 12 is fixed to the driving cross bar 9, the connection reliability between the driving member 12 and the driving cross bar 9 can be effectively guaranteed, thereby effectively ensuring that the spoiler blade 2 swings smoothly from the closed position to the open position. Of course, the stopper 15 can also be other fixing structures, as long as the driving member 12 can be fixed to the driving cross bar 9.

[0180] Furthermore, the swing arm 13 includes: a first swing arm 1304 and a second swing arm 1305, one end of the first swing arm 1304 is sleeved on the driving cross bar 9, the reset member 10 cooperates with the first swing arm 1304, one end of the second swing arm 1305 is rotatably connected to the other end of the first swing arm 1304, and when the spoiler blade 2 is in the open position, the first swing arm 1304 and the second swing arm 1305 are located on the same straight line.

[0181] Thus, when the motion mechanism moves to Figure 2 In the state shown, the first swing arm 1304, the second swing arm 1305, the base 1 and the spoiler blade 2 form a triangle together. At this time, the first swing arm 1304 and the second swing arm 1305 move to the dead point of the motion mechanism, and the force direction of both is along the arm length direction of the swing arm 13. As a result, there is no influence of excess force that can disturb the rotation of the spoiler blade 2, and the spoiler blade 2 can be more stable when it is opened.

[0182] In some embodiments of the present invention, Fig.17 The first swing arm 1304 has a through hole at one end adjacent to the second swing arm 1305, and the second swing arm 1305 has a through hole at one end adjacent to the first swing arm 1304. The through hole of the first swing arm 1304 is connected with the through hole of the second swing arm 1305 for fasteners to connect. The first swing arm 1304 can realize flexible swinging, thereby driving the second swing arm 1305 to flexibly swing.

[0183] like Figure 19-Figure 24 As shown, the spoiler blade 2 includes a soft member 201 , and the soft member 201 provides a deformation portion 2011 when the spoiler blade 2 rotates, and the deformation portion 2011 of the soft member 201 forms a virtual rotation axis of the spoiler blade 2 .

[0184] Based on the certain flexibility of the soft part 201, a deformation part 2011 is formed on the soft part 201. When the spoiler blade 2 is driven to rotate, the deformation part 2011 of the soft part 201 forms a virtual rotation axis, so that the spoiler blade 2 rotates with the virtual rotation axis as the rotation axis, thereby realizing the dynamic rotation of the spoiler blade 2.

[0185] The virtual rotation axis refers to a virtual axis around which the spoiler blade 2 can be regarded as rotating when a force is applied to it. The virtual rotation axis is formed by the deformation of the deformation portion 2011 of the soft part 201. When the deformation portion 2011 is subjected to a force, it deforms so that the deformation portion 2011 forms the virtual rotation axis of the spoiler blade 2. When the force disappears, the deformation portion 2011 can return to its original state.

[0186] For example, the soft part 201 may be made of rubber material. Rubber material has strong elasticity and flexibility, can recover to its original shape after deformation, and is suitable for processing on the spoiler blade 2.

[0187] Therefore, the spoiler blade 2 of the present application adopts the soft part 201. When the spoiler blade 2 rotates, the deformation part 2011 of the soft part 201 deforms to form a virtual rotation axis, so that the spoiler blade 2 rotates around the virtual rotation axis. When the spoiler blade 2 is applied to a vehicle diffuser, there is no need to reserve installation space at the rear of the vehicle.

[0188] Furthermore, a groove 2012 is provided on at least one side surface of the deformation portion 2011 , and a virtual rotation axis is formed at the groove 2012 when the spoiler blade 2 rotates.

[0189] In this way, at least one side surface of the deformation part 2011 is thickened to form a groove 2012, which guides the virtual rotation axis position of the spoiler blade 2 to be fixed at the deformation part 2011, and also enables the soft part 201 to be easily deformed at the groove 2012, so that when the spoiler blade 2 rotates, a virtual rotation axis can be formed at the groove 2012. As shown in Figures and Figures, the groove 2012 extends to both ends of the deformation part 2011, which is conducive to the deformation part 2011 to be more easily deformed when subjected to a force.

[0190] Furthermore, when the deformation portion 2011 is not deformed, the notch wall shape of the groove 2012 is an arc shape.

[0191] So, see Fig. 20 As shown, when the deformation portion 2011 is not deformed, the cross-sectional area of ​​the notch wall of the groove 2012 is in an arc shape, and the arc shape has a center. When the deformation portion 2011 is deformed, the spoiler blade 2 can rotate around the virtual axis where the center of the circle is located, thereby improving the movement stability of the spoiler blade 2.

[0192] Further, the slot wall is symmetrical about an axis forming a virtual rotation axis.

[0193] In this way, when the deformation portion 2011 is deformed by an external force, the spoiler blade 2 rotates around the symmetrical notch wall, so that the spoiler blade 2 is relatively stable when rotating clockwise or counterclockwise.

[0194] Further, see Fig. 20 As shown, grooves 2012 are formed on both side surfaces of the deformation portion 2011 in the thickness direction.

[0195] Such arrangement facilitates the spoiler blade 2 to rotate along both sides of the thickness direction of the deformation portion 2011 around the grooves 2012 on both sides, and can protect both side surfaces of the thickness direction of the deformation portion 2011, thereby extending the service life of the spoiler blade 2.

[0196] Further, the groove 2012 located on the outer surface of the spoiler blade 2 is a first groove 2012a, and the groove 2012 located on the inner surface of the spoiler blade 2 is a second groove 2012b, and the notch size of the second groove 2012b is smaller than the notch size of the first groove 2012a.

[0197] Since the spoiler blades 2 of the vehicle diffuser are usually opened only when the vehicle is traveling at high speed, the frequency of use of the spoiler blades 2 when opened is lower than the frequency of use of the spoiler blades when closed.

[0198] Based on this, when the spoiler blade 2 is closed, the first groove 2012a located on the outer surface of the spoiler blade 2 needs to be stretched and deformed, while the second groove 2012b located on the inner surface of the spoiler blade 2 needs to be compressed and deformed. Therefore, the slot size of the second groove 2012b is smaller than the slot size of the first groove 2012a, which can well meet the above-mentioned operating conditions of the spoiler blade 2.

[0199] Further, when the deformation portion 2011 is not deformed, the projections of the symmetry axis of the notch wall of the second groove 2012b and the symmetry axis of the notch wall of the first groove 2012a in the thickness direction do not overlap.

[0200] Since the spoiler blade 2 rotates clockwise or counterclockwise around the virtual rotation axis formed by the deformation portion 2011, when rotating clockwise, the spoiler blade 2 rotates around the virtual rotation axis formed by the second groove 2012b located on the inner surface of the spoiler blade 2, if the projections of the symmetric axis of the notch wall of the second groove 2012b and the symmetric axis of the notch wall of the first groove 2012a in the thickness direction overlap, then at this time, the first groove 2012a located on the outer surface of the spoiler blade 2 has a large tensile deformation, which may lead to fatigue damage or even fracture problems if used repeatedly for a long time. Similarly, the same is true when the spoiler blade 2 rotates counterclockwise.

[0201] Therefore, the fatigue service life of the deformation portion 2011 can be improved by making the projections of the symmetry axis of the notch wall of the second notch 2012 b and the symmetry axis of the notch wall of the first notch 2012 a non-overlap in the thickness direction.

[0202] Further, when the deformation portion 2011 is not deformed, the radius of the second groove 2012b is equal to the radius of the first groove 2012a.

[0203] In this way, the radius of the second groove 2012b is equal to the radius of the first groove 2012a. When the spoiler blade 2 rotates clockwise or counterclockwise around the virtual axis formed by the deformation portion 2011, the deformation amounts of the first groove 2012a and the second groove 2012b are substantially the same, and the first groove 2012a or the second groove 2012b will not be excessively deformed, thereby also extending the service life of the spoiler blade 2.

[0204] Furthermore, the soft part 201 further includes a fixing portion 2013, which is suitable for connecting with the base 1 of the vehicle diffuser or the body of the vehicle, and the deformation portion 2011 is connected to a side of the fixing portion 2013 away from the base 1 or the vehicle.

[0205] Thus, the fixing part 2013 is disposed on one side of the soft part 201 close to the base 1 of the vehicle diffuser or the vehicle body to be connected with the base 1 of the vehicle diffuser or the vehicle body, so that one end of the spoiler blade 2 is fixed and the other end is rotatable.

[0206] Furthermore, when the fixing portion 2013 of the soft component 201 is connected to the base 1 of the vehicle diffuser or the vehicle body, the soft component 201 can be squeezed and matched with the base 1 or the vehicle body due to its flexible nature, thereby improving the connection strength.

[0207] Furthermore, the fixing portion 2013 is provided with at least one protruding mounting portion 2014 , and the fixing portion 2013 is connected to the base 1 or the vehicle body via the mounting portion 2014 .

[0208] Thus, the fixing portion 2013 is provided with a protruding mounting portion 2014, so that the spoiler blade 2 is connected to the base 1 or the vehicle body through the mounting portion 2014. The installation is convenient, and since the soft part 201 has the characteristics of being deformable and restorable, the mounting portion 2014 is protruded, which can effectively ensure the reliability of the spoiler blade 2 when connected to the base 1 or the vehicle.

[0209] Further, a mounting hole 2015 is formed on the mounting portion 2014, and a rigid bushing 2017 is provided in the mounting hole 2015, and the rigid bushing 2017 is interference-fitted in the mounting hole 2015. Further, the axial length of the rigid bushing 2017 is less than the axial length of the mounting hole 2015.

[0210] In this way, a connecting member such as a bolt 801 is used to pass through the rigid bushing 2017 to fix it on the base 1 or the body of the vehicle diffuser. In addition, the axial length of the mounting hole 2015 is greater than the axial length of the rigid bushing 2017, so that when the connecting member is used for fixing, a certain amount of compression can be formed on the soft member 201, and the spoiler blade 2 can be better fixed.

[0211] Exemplarily, the rigid bushing 2017 may be a metal bushing, but is not limited thereto.

[0212] Furthermore, a protruding step portion 2016 is provided on one side of the fixing portion 2013 away from the deformation portion 2011 , and a surface of the step portion 2016 on one side in the thickness direction is flush with the outer surface of the spoiler blade 2 , and the step portion 2016 is suitable for connecting with the vehicle body.

[0213] Since there may be a gap between the vehicle diffuser and the vehicle body when it is installed on the vehicle body, affecting the appearance, a step portion 2016 protruding toward the vehicle body is provided on the side of the fixing portion 2013 away from the deformation portion 2011, and a surface of one side of the step portion 2016 in the thickness direction is flush with the outer surface of the spoiler blade 2, so that the step portion 2016 is seamlessly connected to the vehicle body and the bottom remains coplanar.

[0214] Furthermore, the soft component 201 further includes a rotating portion 2018 , which is connected to a side of the deformation portion 2011 away from the fixed portion 2013 . The rotating portion 2018 can rotate around a virtual rotation axis formed by the deformation portion 2011 .

[0215] Thus, under the condition that the soft part 201 has a certain rigidity, a rotating part 2018 is provided on the side of the deformable part 2011 away from the fixed part 2013, so that when the spoiler blade 2 rotates, the rotating part 2018 can rotate around the virtual rotation formed by the deformable part 2011 to achieve the spoiler function. The rotating part 2018 will not be deformed.

[0216] Furthermore, the spoiler blade 2 further includes: a rigid part 202 , which is connected to the soft part 201 , and the rotation of the rigid part 202 can drive at least part of the soft part 201 to rotate around the virtual rotation axis.

[0217] See Figure 20-24 As shown, the rigid component 202 and the soft component 201 are connected to form the spoiler blade 2. At the position where the rotating shaft is needed on the soft component 201, the thickness of the soft component 201 is reduced to a specific thickness, thereby forming a virtual rotating shaft so that the rigid component 202 can rotate around the virtual rotating shaft of the soft component 201.

[0218] Furthermore, along the direction from the soft part 201 toward the rigid part 202 , the surface of the soft part 201 on the side adjacent to the rigid part 202 extends obliquely toward the side where the rigid part 202 is located to the surface of the rigid part 202 .

[0219] Thus, the surface of the soft part 201 adjacent to the rigid part 202 is inclined toward the side where the rigid part 202 is located and extends to the surface of the rigid part 202 to form a coplanar relationship, thereby improving the integrity of the spoiler blade 2 and having good aesthetics.

[0220] Furthermore, the rigid part 202 and the soft part 201 are connected as a whole by plastic coating.

[0221] In the embodiment of the present application, the soft component 201 and the rigid component 202 are joined together by using a plastic coating process, so that the soft component 201 and the rigid component 202 form an integrated structure, thereby improving the overall consistency of the spoiler blade 2 .

[0222] Furthermore, the rigid component 202 is a carbon fiber component, and the soft component 201 is a rubber component.

[0223] In this way, the hardness of the carbon fiber part is much greater than that of the rubber part. When the vehicle is traveling at high speed, the external force it is subjected to is very large. At this time, the vehicle diffuser needs to open the spoiler blade 2 so that the rigid part 202 rotates around the virtual axis of the soft part 201, and the rigid part 202 will not be deformed, thereby realizing the spoiler function of the spoiler blade 2.

[0224] Furthermore, a blade mounting bracket 203 is provided on the inner surface of the spoiler blade 2 in the thickness direction, and at least one blade mounting seat 204 is provided on the blade mounting bracket 203 .

[0225] In this way, the spoiler blade 2 is provided with a blade mounting bracket 203, which can be bonded to the spoiler blade 2 by adhesive. For example, before the bonding process, the bonding surface can be sandblasted by a sandblasting machine, and then a certain gap is left between the bonding surfaces, filled with epoxy resin glue, and then the tooling is used to fix the bonding surface for no less than twelve hours. Among them, the blade mounting bracket 203 can be made of aluminum alloy material.

[0226] A blade mounting seat 204 is provided on the blade mounting bracket 203 , so that the spoiler blade 2 is drivingly connected to the driving unit 11 through the blade mounting seat 204 .

[0227] like Figure 1 and Fig.23 The left spoiler blade 2 of the vehicle diffuser shown is relatively large in overall size. Three mounting holes 2015 are provided at one end of the soft part 201 , and two blade mounting seats 204 are provided on the blade mounting bracket 203 .

[0228] like Figure 1 and Fig. 22 The left second spoiler blade 2 of the vehicle diffuser shown is relatively small in overall size. Two mounting holes 2015 are provided at one end of the soft part 201 , and a blade mounting seat 204 is provided on the blade mounting bracket 203 .

[0229] Of course, the spoiler blade 2 can also be a whole structure, with one or more blade mounting brackets 203 provided on the spoiler blade 2, and one or more blade mounting seats 204 provided on each blade mounting bracket 203. The design can be made according to the size of the spoiler blade 2.

[0230] like Fig.24 The spoiler blades 2 for the vehicle diffuser are shown in two states of opening and closing, and the angle of opening and closing of the spoiler blades 2 for the vehicle diffuser is about eighteen degrees.

[0231] A vehicle according to an embodiment of a second aspect of the present invention comprises the vehicle diffuser according to an embodiment of the first aspect of the present invention.

[0232] According to a further embodiment of the present invention, the ratio of the two ends of the vehicle diffuser in the length direction to the width of the vehicle is k, where k satisfies: 80%≤k≤100%. In this way, the vehicle diffuser can be arranged along the width direction of the vehicle as much as possible to achieve the maximum low wind resistance effect and downforce effect of the vehicle.

[0233] When the vehicle diffuser needs to open the spoiler blade 2, the drive unit 11 rotates in the first direction to swing the drive cross bar 9, and the drive cross bar 9 drives the drive member 12 to be connected with the first swing arm 1304. At this time, the drive unit 11 stops running, and the first swing arm 1304 and the second swing arm 1305 are located in the same straight line, so that the spoiler blade 2 rotates from the closed position to the open position, and the spoiler blade 2 is opened to the maximum angle.

[0234] When the spoiler blade 2 needs to be closed, the driving unit 11 rotates in the second direction, so that the driving crossbar 9 swings, and the driving member 12 rotates until it no longer stops with the first swing arm 1304. At this time, the first swing arm 1304 moves toward the base 1 under the restoring force of the reset member 10. At this time, the first swing arm 1304 and the second swing arm 1305 are folded, so that the spoiler blade 2 rotates from the open position to the closed position. When the spoiler blade 2 reaches the closed position, the driving unit 11 continues to rotate in the second direction by a predetermined angle, so that the driving member 12 continues to rotate relative to the first swing arm 1304 and separates from the first swing arm 1304, that is, the driving unit 11 provides an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 10.

[0235] The vehicle according to the embodiment of the present invention can effectively improve the overall performance of the vehicle by adopting the above-mentioned vehicle diffuser. Specifically, it can realize free switching between low wind resistance and high downforce, and the opening and closing angles of the spoiler blades 2 are determined according to the heat dissipation requirements, temperature and vehicle speed of the whole vehicle, and can be freely retracted and extended to meet the requirements of different driving conditions. When the vehicle is driving at high speed, the vehicle has small vibration, small noise and smooth operation, which can greatly improve the driving experience of the driver and passengers.

[0236] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0237] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0238] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle diffuser, characterized in that: include: Base; A plurality of spoiler blades are disposed on the base, and the spoiler blades are configured to selectively rotate to open away from the base and close toward the base.

2. The vehicle diffuser according to claim 1, characterized in that The plurality of spoiler blades are arranged at intervals along the length direction of the base.

3. The vehicle diffuser according to claim 2, characterized in that: The area of ​​the spoiler blade located in the middle of the base in the length direction is smaller than the area of ​​the spoiler blade located at both ends of the base in the length direction.

4. The vehicle diffuser according to claim 3, characterized in that: The spoiler blade located in the middle of the length direction of the base is drivingly connected to the base through a swing arm; The spoiler blades located at both ends of the base in the length direction are drivingly connected to the base through a plurality of swing arms.

5. The vehicle diffuser according to claim 2, characterized in that: The width of the spoiler blade located in the middle of the base in the length direction of the base in the length direction of the base is smaller than the width of the spoiler blades located at both ends of the base in the length direction of the base in the length direction of the base.

6. The vehicle diffuser according to claim 2, characterized in that: The spoiler blades located in the middle of the base in the length direction have a greater length in the width direction of the base than the spoiler blades located at both ends of the base in the length direction of the base.

7. The vehicle diffuser according to claim 2, characterized in that: One end of the plurality of spoiler blades is connected to the base.

8. The vehicle diffuser according to claim 2, characterized in that: The plurality of spoiler blades are arranged side by side on the base, and the connection center points of one end of the plurality of spoiler blades and the base are located on the same straight line.

9. The vehicle diffuser according to claim 2, characterized in that: One end of the plurality of spoiler blades extends horizontally along the length direction of the base. Along a direction from a middle portion in a length direction of the base toward an end portion in a length direction of the base, the other ends of the plurality of spoiler blades extend obliquely toward a direction close to the one end of the spoiler blade.

10. The vehicle diffuser according to claim 9, characterized in that A width of one end of the plurality of spoiler blades in the length direction of the base is greater than a width of the other end of the plurality of spoiler blades in the length direction of the base.

11. The vehicle diffuser according to claim 2, characterized in that The plurality of spoiler blades are bilaterally symmetrical in the length direction of the base.

12. The vehicle diffuser according to claim 2, characterized in that The plurality of spoiler blades are configured such that each of the spoiler blades rotates synchronously to open away from the base and closes synchronously toward the base.

13. The vehicle diffuser according to claim 2, characterized in that Also includes: At least one driving unit is disposed on the base, the driving unit is connected to the spoiler blades, and the driving unit is used to drive the spoiler blades to open and close.

14. The vehicle diffuser according to claim 13, characterized in that The driving unit and the spoiler blades are located on the same side of the base.

15. The vehicle diffuser according to claim 13, characterized in that The spacing between the spoiler blades located in the middle of the base in the length direction is greater than the spacing between the spoiler blades located in the middle of the base in the length direction and the spoiler blades at both ends of the base in the length direction.

16. The vehicle diffuser according to claim 13, characterized in that There is one driving unit, and at least a part of the driving unit is located in the area between two adjacent spoiler blades.

17. The vehicle diffuser according to claim 13, characterized in that There are a plurality of driving units, and each of the driving units is connected to at least one spoiler blade.

18. The vehicle diffuser according to claim 2, characterized in that The plurality of spoiler blades are configured as follows: In the first speed range, the spoiler blades located at least one of the middle and both ends of the base in the length direction are opened.

19. The vehicle diffuser according to claim 18, characterized in that In the second speed range, the spoiler blades located at both ends and the middle of the base in the length direction are all opened, the minimum value of the second speed range is greater than the minimum value of the first speed range, and the maximum value of the second speed range is less than the maximum value of the first speed range.

20. The vehicle diffuser of claim 19, wherein: In the third speed range, the spoiler blades located at both ends of the base in the length direction are opened, the maximum value of the third speed range is less than the minimum value of the second speed range, and the minimum value of the third speed range is not greater than the minimum value of the first speed range.

21. The vehicle diffuser of claim 19, wherein: In a fourth speed range, the spoiler blade located in the middle of the length direction of the base is opened, the minimum value of the fourth speed range is greater than the maximum value of the second speed range, and the maximum value of the fourth speed range is less than the maximum value of the first speed range.

22. The vehicle diffuser of claim 18, wherein: The plurality of spoiler blades are configured as follows: Outside the first speed range, the spoiler blades located at both ends and the middle portion of the base in the length direction are not opened.

23. The vehicle diffuser according to any one of claims 1 to 22, characterized in that: The spoiler blades are configured to selectively rotate to open to different angles away from the base and to close toward the base.

24. A vehicle, characterized in that: A vehicle diffuser comprising any one of claims 1-23.

25. The vehicle according to claim 24, characterized in that The ratio of the two ends of the vehicle diffuser in the length direction to the width of the vehicle is k, wherein k satisfies: 80%≤k≤100%.

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