Vehicle diffuser and vehicle

Abstract

The utility model discloses a vehicle diffuser and a vehicle. The vehicle diffuser comprises a base; a spoiler blade; the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod which are connected in sequence, the two ends of the second connecting rod are connected with the first connecting rod and the third connecting rod through ball pairs correspondingly, and the end, away from the second connecting rod, of the first connecting rod is rotationally connected with the base; and one end, far away from the second connecting rod, of the third connecting rod is connected with the turbulent flow blade. When the connecting rod mechanism is applied to a vehicle diffuser, smooth movement of the connecting rod mechanism can be effectively guaranteed even if a vehicle is subjected to large external force during high-speed running.

Description

Technical Field

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

[0002] In the prior art, a vehicle diffuser is an aerodynamic component that generates negative lift (downforce) by sucking air from under the chassis. In the related art, most active vehicle diffusers are usually driven by a conventional four-bar linkage. However, when the vehicle is driving (especially at high speeds), the spoiler blades need to provide downforce to the vehicle. During the force transmission process, the four-bar linkage will be subject to a large external force. In other words, whether the four-bar linkage is moving or not, it will be subject to force, causing changes in the parameters of the four-bar linkage, thereby affecting the stability of the spoiler blade movement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a vehicle diffuser.

[0004] The utility model further provides a vehicle.

[0005] The vehicle diffuser according to the first aspect of the utility model embodiment includes: a base; a spoiler blade; a connecting rod mechanism, wherein the connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod connected in sequence, the two ends of the second connecting rod are respectively connected to the first connecting rod and the third connecting rod through a ball joint, the end of the first connecting rod away from the second connecting rod is rotatably connected to the base, and the end of the third connecting rod away from the second connecting rod is connected to the spoiler blade.

[0006] According to the vehicle diffuser of the embodiment of the utility model, by arranging that the second link is connected to the first link and the third link respectively through a ball joint, the motion stress between the second link and the first link or the third link can be reduced, and then the parameter changes of the second link, the first link and the third link can be reduced, so that the motion stability of the vehicle diffuser using the link mechanism is guaranteed to a certain extent.

[0007] According to some embodiments of the utility model, the ball pair includes a ball head and a ball head sleeve, the ball head is rotatably disposed in the ball head sleeve, one of the ball head and the ball head sleeve is connected to the second connecting rod, and the other of the ball head and the ball head sleeve is connected to the first connecting rod or the third connecting rod.

[0008] According to some embodiments of the present invention, when the axis of the ball head and the axis of the ball head cover are colinear, along the axis direction of the ball head, both ends of the ball head protrude from the ball head cover.

[0009] According to some embodiments of the present invention, the ball head sleeve is connected to the end of the second connecting rod; the connecting rod mechanism further includes: a connecting assembly, and the ball head is connected to the first connecting rod or the third connecting rod through the connecting assembly.

[0010] According to some embodiments of the utility model, a first through hole is formed on the ball head, and a second through hole is formed on the first connecting rod or the third connecting rod; the connecting assembly includes a bolt and a nut, and the bolt passes through the first through hole and the second through hole and is threadedly connected to the nut.

[0011] According to some embodiments of the present invention, the second connecting rod and the ball head cover are integrally formed structural parts.

[0012] According to some embodiments of the present invention, the ball head cover is a first self-lubricating plastic material piece, and the ball head 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.

[0013] According to some embodiments of the present invention, the first self-lubricating plastic material piece is a polyoxymethylene material, and the second self-lubricating plastic material piece is a polyphenylene sulfide material.

[0014] According to some embodiments of the present invention, 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.

[0015] According to some embodiments of the utility model, there are multiple spoiler blades; the connecting rod mechanism also includes a cross bar, which is connected to an end of the third connecting rod away from the second connecting rod, and the cross bar is connected to the multiple spoiler blades.

[0016] According to some embodiments of the utility model, it includes: at least one driving unit, the driving unit is arranged on the base, the first connecting rod is connected to the driving unit, and the driving unit drives the spoiler blade to move at least through the connecting rod mechanism.

[0017] According to some embodiments of the present invention, the driving unit is disposed between two adjacent spoiler blades.

[0018] A vehicle according to an embodiment of the second aspect of the utility model comprises the vehicle diffuser.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 It is a schematic structural diagram of the connection between the base, the connecting rod mechanism and the spoiler blade according to an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the connection between the connecting rod mechanism and the driving unit according to an embodiment of the utility model;

[0023] Figure 3 is a structural schematic diagram of a connecting rod mechanism according to an embodiment of the utility model;

[0024] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0025] Figure 5 is an exploded schematic diagram of the second connecting rod and the third connecting rod being connected through a ball pair according to an embodiment of the utility model;

[0026] Figure 6 It 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 utility model;

[0027] Figure 7 It 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 the embodiment of the utility model;

[0028] Figure 8 It is a structural schematic diagram of a base and a driving unit according to an embodiment of the utility model.

[0029] Reference numerals:

[0030] 1. Base; 2. Spoiler blade; 3. First connecting rod; 4. Second connecting rod; 5. Third connecting rod; 51. Second through hole; 6. Ball head; 61. First through hole; 7. Ball head cover; 71. Opening; 8. Connecting assembly; 81. Bolt; 82. Nut; 9. Cross bar; 10. Drive unit. DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0032] Reference below Figure 1-Figure 8 A vehicle diffuser according to an embodiment of the present invention is described.

[0033] like Figure 1-Figure 8 As shown, the vehicle diffuser includes: a base 1, spoiler blades 2 and a connecting rod mechanism.

[0034] 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 base 1, and the end of the third connecting rod 5 away from the second connecting rod 4 is connected to the spoiler blade 2.

[0035] By applying the above technical solution, when the first connecting rod 3 rotates relative to the base 1 , the first connecting rod 3 can drive the second connecting rod 4 to rotate, and the second connecting rod 4 can drive the third connecting rod 5 to rotate, and finally drive the spoiler blade 2 to move relative to the base 1 .

[0036] 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.

[0037] Therefore, according to the vehicle diffuser of the embodiment of the utility model, the second connecting rod 4 is respectively connected to the first connecting rod 3 and the third connecting rod 5 through a ball joint, so that 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 a high speed, the movement of the connecting rod mechanism is stable, so that the spoiler blade 2 can be effectively ensured to move smoothly.

[0038] 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.

[0039] 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.

[0040] refer to Figure 4-Figure 7 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.

[0041] Furthermore, the ball pair may also be other ball pair structures such as a ball head 6 bearing, a universal joint connector, etc.

[0042] 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 .

[0043] refer to Figure 5-Figure 7 As 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.

[0044] 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.

[0045] refer to Figure 4-Figure 7 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.

[0046] 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).

[0047] Further, a first through hole 61 is formed on the ball head 6, and a second through hole 51 is formed on the first connecting rod 3 or the third connecting rod 5. The connecting assembly 8 includes a bolt 81 and a nut 82, and the bolt 81 passes through the first through hole 61 and the second through hole 51 and is threadedly connected with the nut 82.

[0048] refer to Figure 4 and Figure 5 In a disclosed embodiment, a bolt 81 is passed through the first through hole 61 of the ball head 6 and the second through hole 51 of the first connecting rod 3 or the third connecting rod 5 in sequence, and then a nut 82 is threadedly engaged with the bolt 81 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] Furthermore, the second connecting rod 4 and the ball head cover 7 are an integrally formed structural component.

[0055] 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.

[0056] Furthermore, there are multiple spoiler blades 2 , and the connecting rod mechanism further includes: a cross bar 9 , which is connected to an end of the third connecting rod 5 away from the second connecting rod 4 , and the cross bar 9 is connected to the multiple spoiler blades 2 .

[0057] refer to Figure 1 and Figure 2 As shown, a 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 cross bar 9 , so that the cross bar 9 can simultaneously drive the plurality of spoiler blades 2 to rotate, thereby ensuring the synchronization of the rotation of the plurality of spoiler blades 2 .

[0058] Furthermore, the vehicle diffuser includes: at least one driving unit 10, the driving unit 10 is arranged on the base 1, the first connecting rod 3 is connected to the driving unit 10, and the driving unit 10 drives the spoiler blade 2 to move at least through the connecting rod mechanism.

[0059] Combination Figure 8 As shown, the driving unit 10 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 cross bar 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.

[0060] The driving unit 10 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.

[0061] Furthermore, the driving unit 10 is disposed between two adjacent spoiler blades 2 .

[0062] In this way, the stability of the movement of the multiple spoiler blades 2 can be effectively guaranteed, and the driving unit 10 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, and the multiple driving units 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.

[0063] Specifically, when there are two spoiler blades 2, the drive unit 10 is disposed between the two spoiler blades 2; when there are three spoiler blades 2, one drive unit 10 can be disposed between two of the spoiler blades 2; when there are four spoiler blades 2, one drive unit 10 can still be disposed between two of the spoiler blades 2, or two drive units 10 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 10, 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 10 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.

[0064] Furthermore, there are a plurality of spoiler blades 2 , and the plurality of spoiler blades 2 are bilaterally symmetrical about the center in the length direction of the base 1 .

[0065] refer to Figure 1 As shown, there are four spoiler blades 2, and the four spoiler blades 2 are symmetrical about the center of the length direction of the base 1 to ensure that the negative pressure generated at the rear of the vehicle is relatively balanced in the left and right directions, thereby ensuring the driving stability of the vehicle.

[0066] A vehicle according to an embodiment of the second aspect of the utility model includes a vehicle diffuser.

[0067] The vehicle includes a vehicle body, and a vehicle diffuser is installed at the rear of the vehicle body. The vehicle diffuser generates negative lift (downforce) by sucking airflow under the rear of the vehicle body.

[0068] According to the vehicle of the embodiment of the utility model, by providing the above-mentioned vehicle diffuser, when the vehicle is traveling at high speed, the vehicle diffuser will be subjected to a large external force, and the connecting rod mechanism applied to the present application can still move smoothly, thereby ensuring the stable movement of the vehicle diffuser.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0070] 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0071] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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; spoiler blades; A connecting rod mechanism, the connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod connected in sequence, the two ends of the second connecting rod are respectively connected to the first connecting rod and the third connecting rod through ball joints, the end of the first connecting rod away from the second connecting rod is rotatably connected to the base, and the end of the third connecting rod away from the second connecting rod is connected to the spoiler blade.

2. The vehicle diffuser according to claim 1, characterized in that The ball pair includes a ball head and a ball head sleeve, the ball head is rotatably arranged in the ball head sleeve, one of the ball head and the ball head sleeve is connected to the second connecting rod, and the other of the ball head and the ball head sleeve is connected to the first connecting rod or the third connecting rod.

3. The vehicle diffuser according to claim 2, characterized in that: When the axis of the ball head and the axis of the ball head cover are collinear, along the axis direction of the ball head, both ends of the ball head protrude from the ball head cover.

4. The vehicle diffuser according to claim 3, characterized in that: The ball head cover is connected to the end of the second connecting rod; The linkage mechanism further comprises: A connecting assembly, wherein the ball head is connected to the first connecting rod or the third connecting rod through the connecting assembly.

5. The vehicle diffuser according to claim 4, characterized in that: A first through hole is formed on the ball head, and a second through hole is formed on the first connecting rod or the third connecting rod; The connecting assembly includes a bolt and a nut. The bolt passes through the first through hole and the second through hole and is threadedly connected with the nut.

6. The vehicle diffuser according to claim 2, characterized in that: The second connecting rod and the ball head cover are integrally formed structural parts.

7. The vehicle diffuser according to claim 2, characterized in that: The ball head cover is a first self-lubricating plastic material piece, and the ball head 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.

8. The vehicle diffuser according to claim 7, characterized in that 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.

9. The vehicle diffuser according to claim 7, characterized in that: 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.

10. The vehicle diffuser according to any one of claims 1 to 9, characterized in that: There are multiple spoiler blades; The link mechanism further includes a cross bar, the cross bar is connected to an end of the third link away from the second link, and the cross bar is connected to the plurality of spoiler blades.

11. The vehicle diffuser according to claim 10, characterized in that include: At least one driving unit is provided on the base, the first connecting rod is connected to the driving unit, and the driving unit drives the spoiler blade to move at least through the connecting rod mechanism.

12. The vehicle diffuser according to claim 11, characterized in that The driving unit is arranged between two adjacent spoiler blades.

13. A vehicle, characterized in that: A vehicle diffuser comprising any one of claims 1-12.

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