Vehicle diffuser and vehicle

Abstract

The invention discloses a vehicle diffuser and a vehicle. The vehicle diffuser comprises a base; the turbulent flow blade can rotate between an opening position and a closing position relative to the base; the driving mechanism is arranged between the base and the spoiler blade, and the driving mechanism is used for driving the spoiler blade to rotate from the closing position to the opening position; the reset piece is arranged between the base and the spoiler blade, and the reset piece is used for providing restoring force for the spoiler blade to rotate from the opening position to the closing position; the spoiler blade rotates from the opening position to the closing position, and the rotating angle of the spoiler blade is smaller than that of the driving mechanism. The spoiler blade is driven to rotate from the closing position to the opening position and the spoiler blade is driven to rotate from the opening position to the closing position through different parts, so that the rotating angle of the spoiler blade is smaller than that of the driving mechanism, namely, the driving mechanism can provide an avoiding position; therefore, the turbulent flow blade can be completely closed under the action of the reset piece.

Description

Technical Field

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

[0002] In the related art, the opening and closing of the car diffuser blades are generally driven by a drive motor. During the test process, the spoiler blades have the problem of not being able to be completely closed. 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, one object of the present invention is to provide a vehicle diffuser, wherein the spoiler blades are rotated from a closed position to an open position and the spoiler blades are rotated from an open position to a closed position respectively by different parts, so that the rotation angle of the spoiler blades is smaller than the rotation angle of the driving mechanism, that is, the driving mechanism can provide an avoidance position so that the spoiler blades can be completely closed under the action of the reset member.

[0004] The present invention further provides a vehicle.

[0005] A vehicle diffuser according to an embodiment of the first aspect of the present invention includes: a base; a spoiler blade, which is rotatable between an open position and a closed position relative to the base; a driving mechanism, which is arranged between the base and the spoiler blade, and is used to drive the spoiler blade to rotate from the closed position to the open position; a reset member, which is arranged between the base and the spoiler blade, and is used to provide a restoring force for the spoiler blade to rotate from the open position to the closed position; when the spoiler blade rotates from the open position to the closed position, the rotation angle of the spoiler blade is smaller than the rotation angle of the driving mechanism.

[0006] According to the vehicle diffuser of the embodiment of the present invention, the spoiler blades are rotated from the closed position to the open position and from the open position to the closed position respectively by different parts, so that the rotation angle of the spoiler blades is smaller than the rotation angle of the driving mechanism, that is, the driving mechanism can provide an avoidance position so that the spoiler blades can be completely closed under the action of the reset member.

[0007] According to some embodiments of the present invention, after the spoiler blades rotate to the closed position, the drive mechanism continues to rotate by a predetermined angle, and after the spoiler blades rotate to the open position, the drive mechanism is in a stopped state.

[0008] According to some embodiments of the present invention, the spoiler blades include a plurality of spoiler blades, and after all of the spoiler blades rotate to the closed position, the driving mechanism continues to rotate by a predetermined angle.

[0009] According to some embodiments of the present invention, the driving mechanism includes a driving motor and a buffer, the driving motor is drivingly connected to the buffer, the buffer and the spoiler blade can be stop-connected, the driving motor moves in a first direction so that the buffer and the spoiler blade stop to allow the spoiler blade to rotate from the closed position to the open position; the driving motor moves in a second direction, and the spoiler blade rotates from the open position to the closed position under the action of the restoring force of the reset member, and the first direction and the second direction are opposite.

[0010] According to some embodiments of the present invention, when the spoiler blade rotates from the open position to the closed position, a rotation angle of the spoiler blade is smaller than a rotation angle of the drive motor.

[0011] According to some embodiments of the present invention, after the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to allow the buffer member to continue to rotate relative to the spoiler blade.

[0012] According to some embodiments of the present invention, after the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to separate the buffer member from the spoiler blade.

[0013] According to some embodiments of the present invention, the buffer member is a cam.

[0014] According to some embodiments of the present invention, the spoiler blades include a plurality of spoiler blades, and the plurality of spoiler blades are respectively connected to the plurality of buffer members in a stop-and-stop manner. The driving mechanism also includes a driving cross bar, and the driving cross bar is fixedly connected to the plurality of buffer members. The driving motor is drivingly connected to the plurality of buffer members via the driving cross bar.

[0015] According to some embodiments of the present invention, the driving mechanism also includes a swing arm, which is mounted on the driving cross bar and can rotate around the circumference of the driving cross bar. The swing arm is connected to the spoiler blade, and the spoiler blade is stop-connected with the buffer member through the swing arm. The driving motor moves in a first direction so that the buffer member and the swing arm stop to rotate the spoiler blade from the closed position to the open position; the driving motor moves in a second direction, and the swing arm drives the spoiler blade to rotate from the open position to the closed position under the action of the restoring force of the reset member, and the first direction and the second direction are opposite.

[0016] According to some embodiments of the present invention, after the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to allow the buffer to continue to rotate relative to the swing arm.

[0017] According to some embodiments of the present invention, after the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to separate the buffer from the swing arm.

[0018] According to some embodiments of the present invention, after the spoiler blade rotates to the closed position, the drive mechanism continues to rotate by a predetermined angle, where the predetermined angle is α, wherein α satisfies: 0°<α≤10°.

[0019] According to some embodiments of the present invention, the α satisfies: 3°≤α≤7°.

[0020] According to some embodiments of the present invention, the buffer member has a buffer member stop surface; the swing arm has a swing arm stop surface, the swing arm stop surface and the buffer member stop surface can be detachably matched, and the swing arm stop surface and the buffer member stop surface abut to allow the spoiler blade to rotate from the closed position to the open position.

[0021] According to some embodiments of the present invention, the swing arm abutment surface and the buffer member abutment surface are respectively formed as planes.

[0022] According to some embodiments of the present invention, the reset member is a reset torsion spring, the reset member is sleeved on the driving cross bar, and two ends of the reset member are respectively abutted against the swing arm and the base.

[0023] According to some embodiments of the present invention, a stopper is provided on the driving cross bar, and the reset member is located between the stopper and the swing arm to limit the axial movement of the reset member on the driving cross bar.

[0024] According to some embodiments of the present invention, the swing arm includes a first swing arm sleeve and a second swing arm sleeve that are spaced apart, the swing arm is sleeved on the driving cross bar through the first swing arm sleeve and the second swing arm sleeve, and the buffer is located between the first swing arm sleeve and the second swing arm sleeve.

[0025] According to some embodiments of the present invention, the method further comprises: a limiting member, wherein the limiting member passes through the driving cross bar and the buffer member to fix the buffer member on the driving cross bar.

[0026] According to some embodiments of the present invention, the limiting member is an elastic cylindrical pin, and the buffer member is fixed to the driving cross bar through interference fit of the limiting member.

[0027] According to some embodiments of the present invention, the swing arm includes: a first swing arm, one end of which is sleeved on the driving cross bar, and the reset piece cooperates with the first swing arm; a second swing arm, one end of which is rotatably connected to the other end of the first swing arm, and when the spoiler blade is in the open position, the first swing arm and the second swing arm are located on the same straight line.

[0028] A vehicle according to an embodiment of the second aspect of the present invention comprises the vehicle diffuser.

[0029] 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

[0030] 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:

[0031] Figure 1 is a schematic diagram of the overall structure of a vehicle diffuser according to an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the bottom structure of a vehicle diffuser according to an embodiment of the present invention;

[0033] Figure 3 yes Figure 2 AA section view in the figure;

[0034] Figure 4 is an enlarged schematic diagram of a driving mechanism in a vehicle diffuser according to an embodiment of the present invention;

[0035] Figure 5 is a schematic structural diagram of a driving mechanism and a reset member according to an embodiment of the present invention;

[0036] Figure 6 yes Figure 5 BB section view in the figure;

[0037] Figure 7 yes Figure 5 CC section view in the figure;

[0038] Figure 8 is a schematic structural diagram of the closed spoiler blades of a vehicle diffuser according to an embodiment of the present invention;

[0039] Fig. 9 2 is a schematic diagram of the structure in which the spoiler blades of a vehicle diffuser according to an embodiment of the present invention are opened.

[0040] Reference numerals:

[0041] 1. Base; 2. Spoiler blades; 3. Reset member; 4. Drive motor; 5. Buffer member; 501. Buffer member stop surface; 6. Drive cross bar; 7. Swing arm; 701. Swing arm stop surface; 702. First swing arm sleeve; 703. Second swing arm sleeve; 704. First swing arm; 705. Second swing arm; 8. Stop member; 9. Limit member. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 9 A vehicle diffuser according to an embodiment of the present invention is described.

[0043] like Figure 1-Figure 9 As shown, the vehicle diffuser includes: a base 1, spoiler blades 2, a driving mechanism and a reset member 3. The spoiler blades 2 are rotatable between an open position and a closed position relative to the base 1, and the driving mechanism is provided between the base 1 and the spoiler blades 2, and the driving mechanism is used to drive the spoiler blades 2 to rotate from the closed position to the open position. The reset member 3 is provided between the base 1 and the spoiler blades 2, and the reset member 3 is used to provide a restoring force for the spoiler blades 2 to rotate from the open position to the closed position.

[0044] In this way, when the spoiler blade 2 needs to be opened, the driving mechanism 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 3, which can effectively avoid the problem that the spoiler blade 2 cannot be completely closed due to failure of the driving mechanism or the moment when the driving mechanism 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 3, 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 mechanism, so that the spoiler blade 2 is completely closed by the reset member 3.

[0045] 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 mechanism. 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 3, and the driving mechanism can rotate together at this time. When the spoiler blade 2 reaches the closed position, the driving mechanism continues to rotate, that is, the driving mechanism can provide an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 3.

[0046] 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 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 mechanism, that is, the driving mechanism can provide an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 3.

[0047] According to a further embodiment of the present invention, after the spoiler blades 2 rotate to the closed position, the drive mechanism continues to rotate by a predetermined angle, and after the spoiler blades 2 rotate to the open position, the drive mechanism is in a stopped state.

[0048] In this way, when the spoiler blade 2 rotates to the closed position, the driving mechanism continues to rotate by a predetermined angle, that is, the driving mechanism provides a avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 3. In addition, when the spoiler blade 2 rotates to the open position, the driving mechanism no longer rotates, which saves the driving energy of the driving mechanism while ensuring that the spoiler blade 2 can be fully opened. The driving mechanism can have a built-in program instruction to control the spoiler blade 2 to rotate to a specified angle.

[0049] 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 are rotated to the closed position, the drive mechanism continues to rotate by a predetermined angle. In this way, it can be ensured that all spoiler blades 2 can be rotated to the closed position to achieve complete closure, and the impact on the drive mechanism can be further effectively avoided.

[0050] According to some specific embodiments of the present invention, referring to Figure 1-Figure 7 The driving mechanism includes a driving motor 4 and a buffer 5. The driving motor 4 is drivingly connected to the buffer 5. The buffer 5 and the spoiler blade 2 can be stop-connected. The driving motor 4 moves in a first direction, so that the buffer 5 and the spoiler blade 2 stop to make the spoiler blade 2 rotate from the closed position to the open position; the driving motor 4 moves in a second direction, and the spoiler blade 2 rotates from the open position to the closed position under the restoring force of the reset member 3. The first direction and the second direction are opposite.

[0051] For example, the first direction may be clockwise, and the output shaft of the driving motor 4 may rotate clockwise, driving the buffer 5 to stop against the spoiler blade 2, so that the spoiler blade 2 rotates from the closed position to the open position; the driving motor 4 moves in the second direction, for example, the output shaft of the driving motor 4 rotates counterclockwise, and the spoiler blade 2 rotates from the open position to the closed position under the action of the reset member 3. Thus, by driving the motor 4 to rotate in the first direction and the second direction, the buffer 5 and the spoiler blade 2 can be selectively stopped.

[0052] 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 drive motor 4 .

[0053] 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 3, the driving mechanism can rotate together. When the spoiler blade 2 reaches the closed position, the driving mechanism continues to rotate, that is, the driving mechanism provides an avoidance position so that the spoiler blade 2 can be completely closed under the action of the reset member 3.

[0054] Furthermore, after the spoiler blades 2 rotate to the closed position, the drive motor 4 continues to rotate by a predetermined angle so that the buffer member 5 continues to rotate relative to the spoiler blades 2 .

[0055] In this way, after the spoiler blades 2 are closed, the drive motor 4 drives the buffer 5 to continue rotating, which can avoid the impact on the buffer 5 at the moment of the spoiler blades 2 resetting, thereby avoiding the impact on the drive motor 4 and extending the service life of the drive motor 4.

[0056] Furthermore, after the spoiler blades 2 rotate to the closed position, the drive motor 4 continues to rotate by a predetermined angle to separate the buffer member 5 from the spoiler blades 2 .

[0057] In this way, after the spoiler blade 2 is closed, the drive motor 4 drives the buffer 5 to separate from the spoiler blade 2, which can further avoid the impact on the buffer 5 at the moment of the spoiler blade 2 resetting, thereby further avoiding the impact on the drive motor 4 and further extending the service life of the drive mechanism.

[0058] Optionally, the buffer member 5 is a cam. In this way, the cam has a simple structure and convenient design, and can satisfy the desired movement of the spoiler blade 2. Specifically, when the drive motor 4 moves in a first direction, the drive motor 4 drives the cam to stop against the spoiler blade 2, and when the drive motor 4 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 3.

[0059] Furthermore, combined with Figure 1 The spoiler blades 2 include multiple spoiler blades 2, which are respectively connected to multiple buffer members 5 in a stop-and-stop manner. The driving mechanism also includes a driving cross bar 6, which is fixedly connected to the multiple buffer members 5. The driving motor 4 is drivingly connected to the multiple buffer members 5 through the driving cross bar 6.

[0060] In this way, a plurality of buffer members 5 are installed on the driving cross bar 6, so that the plurality of buffer members 5 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 synchronously.

[0061] The driving mechanism also includes a swing arm 7, which is sleeved on the driving cross bar 6. The swing arm 7 can rotate around the circumference of the driving cross bar 6. The swing arm 7 is connected to the spoiler blade 2, and the spoiler blade 2 is stop-connected with the buffer 5 through the swing arm 7. The driving motor 4 moves in a first direction, so that the buffer 5 and the swing arm 7 stop to rotate the spoiler blade 2 from the closed position to the open position; the driving motor 4 moves in a second direction, and the swing arm 7 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 3. The first direction and the second direction are opposite.

[0062] In this way, when the swing arm 7 is connected to the buffer 5 by abutment, the spoiler blade 2 can be opened. When the swing arm 7 is separated from the buffer 5, the swing arm 7 can close the spoiler blade 2 under the action of the restoring force of the reset member 3. The spoiler blade 2 is connected to the buffer 5 by abutment through the swing arm 7, thereby effectively ensuring the opening and closing of the spoiler blade 2.

[0063] Furthermore, after the spoiler blade 2 rotates to the closed position, the drive motor 4 continues to rotate by a predetermined angle to allow the buffer 5 to continue to rotate relative to the swing arm 7 .

[0064] In this way, after the spoiler blades 2 are closed, the buffer 5 continues to rotate relative to the swing arm 7, which can avoid the impact on the buffer 5 when the swing arm 7 drives the spoiler blades 2 to return to their original position, thereby extending the service life of the driving mechanism.

[0065] Furthermore, after the spoiler blade 2 rotates to the closed position, the drive motor 4 continues to rotate by a predetermined angle to separate the buffer 5 from the swing arm 7. In this way, after the spoiler blade 2 is closed, the drive motor 4 drives the buffer 5 to separate from the swing arm 7, which can avoid the impact on the buffer 5 when the swing arm 7 drives the spoiler blade 2 to return to its original position, thereby extending the service life of the drive mechanism.

[0066] Optionally, the predetermined angle is α, wherein α satisfies: 0°<α≤10°. In this way, after the spoiler blades 2 are closed, the drive motor 4 continues to rotate at an angle greater than 0° and within 10°, so that the buffer 5 and the swing arm 7 can be separated, thereby avoiding impact on the buffer 5 and the drive motor 4, and improving the response speed and saving energy. If the rotation angle is greater than 10°, resulting in excessive separation between the buffer 5 and the swing arm 7, when the spoiler blades 2 need to be opened again, the drive motor 4 needs to be rotated first until the buffer 5 is in contact with the swing arm 7, and then continue to rotate to make the buffer 5 and the swing arm 7 stop connection, resulting in a longer entire process from issuing a command to open the spoiler blades 2 to the spoiler blades 2 being opened.

[0067] Further optionally, α satisfies: 3°≤α≤7°. In this way, the buffer 5 can be separated from the swing arm 7 to avoid impact on the buffer 5 and the drive motor 4, and the action sensitivity of the spoiler blade 2 when opening can be ensured.

[0068] According to a further embodiment of the present invention, the buffer 5 has a buffer abutment surface 501, and the swing arm 7 has a swing arm abutment surface 701, and the swing arm abutment surface 701 and the buffer abutment surface 501 can be detachably matched, and the swing arm abutment surface 701 and the buffer abutment surface 501 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 701 and the buffer abutment surface 501, it can be ensured that the swing arm 7 and the buffer 5 are reliably abutted and connected, thereby effectively driving the spoiler blade 2 to rotate from the closed position to the open position.

[0069] Optionally, the swing arm abutment surface 701 and the buffer member abutment surface 501 are respectively formed as planes. In this way, the swing arm abutment surface 701 and the buffer member abutment surface 501 are both planes, which increases the abutment connection area between the swing arm 7 and the buffer member 5, and further improves the reliability of the abutment connection between the swing arm 7 and the buffer member 5.

[0070] Optionally, the reset member 3 is a reset torsion spring, which is sleeved on the driving crossbar 6, and the two ends of the reset member 3 are respectively abutted against the swing arm 7 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 the user from being pinched during use. But it is not limited to this.

[0071] 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 7 and the base 1 respectively. When the spoiler blade 2 needs to be opened, the drive motor 4 needs to overcome the pre-tightening torque of the reset torsion spring, that is, the drive motor 4 drives the drive cross bar 6 to swing, so that the buffer 5 stops against the swing arm 7, 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 motor 4 no longer applies a force to drive the drive cross bar 6 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 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.

[0072] Furthermore, a stopper 8 is provided on the driving cross bar 6, and the reset member 3 is located between the stopper 8 and the swing arm 7 to limit the axial movement of the reset member 3 in the driving cross bar 6. In this way, the reset member 3 can be ensured to be axially stable in the driving cross bar 6, thereby ensuring that one end of the reset member 3 can effectively stop against the swing arm 7.

[0073] Furthermore, the swing arm 7 includes a first swing arm sleeve 702 and a second swing arm sleeve 703 which are arranged at intervals. The swing arm 7 is sleeved on the driving cross bar 6 through the first swing arm sleeve 702 and the second swing arm sleeve 703 , and the buffer member 5 is located between the first swing arm sleeve 702 and the second swing arm sleeve 703 .

[0074] In this way, a matching space between the buffer component 5 and the swing arm 7 is defined between the first swing arm sleeve 702 and the second swing arm sleeve 703, and the buffer component 5 is arranged in the matching space. In the process that the buffer component 5 pushes the swing arm 7 to swing from the above-mentioned first position to the above-mentioned second position, the first swing arm sleeve 702 and the second swing arm sleeve 703 both rotate circumferentially around the driving cross bar 6, so that the overall force of the swing arm 7 is balanced, which can further effectively ensure the smooth movement of the swing arm 7.

[0075] Furthermore, the vehicle diffuser further includes: a stopper 9, which passes through the driving cross bar 6 and the buffer 5 to fix the buffer 5 on the driving cross bar 6. In this way, the buffer 5 can be fixed on the driving cross bar 6 through the stopper 9, so that the buffer 5 can rotate synchronously with the driving cross bar 6, so that when the buffer 5 stops against the swing arm, the swing arm 7 can be driven to swing.

[0076] Optionally, the stopper 9 is an elastic cylindrical pin, and the buffer 5 is fixed to the driving cross bar 6 by interference fit through the stopper 9. In this arrangement, by adopting the elastic cylindrical pin, since the elastic cylindrical pin has good elasticity and shear resistance, while ensuring that the buffer 5 is fixed to the driving cross bar 6, the connection reliability of the buffer 5 and the driving cross bar 6 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 9 can also be other fixing structures, as long as the buffer 5 can be fixed to the driving cross bar 6.

[0077] Furthermore, the swing arm 7 includes: a first swing arm 704 and a second swing arm 705, one end of the first swing arm 704 is sleeved on the driving cross bar 6, the reset member 3 cooperates with the first swing arm 704, one end of the second swing arm 705 is rotatably connected to the other end of the first swing arm 704, and when the spoiler blade 2 is in the open position, the first swing arm 704 and the second swing arm 705 are located on the same straight line.

[0078] Thus, when the motion mechanism moves to Fig. 9 In the state shown, the first swing arm 704, the second swing arm 705, the base 1 and the spoiler blade 2 form a triangle together. At this time, the first swing arm 704 and the second swing arm 705 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 7. 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.

[0079] In some embodiments of the present invention, Figure 6 The first swing arm 704 has a through hole at one end adjacent to the second swing arm 705, and the second swing arm 705 has a through hole at one end adjacent to the first swing arm 704. The through hole of the first swing arm 704 is connected with the through hole of the second swing arm 705 for fasteners to be connected. The first swing arm 704 can realize flexible swinging, thereby driving the second swing arm 705 to flexibly swing.

[0080] 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.

[0081] When the vehicle diffuser needs to open the spoiler blade 2, the driving motor 4 rotates in the first direction to swing the driving crossbar 6, and the driving crossbar 6 drives the buffer 5 to be connected with the first swing arm 704, and the first swing arm 704 and the second swing arm 705 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. When the spoiler blade 2 needs to be closed, the driving motor 4 rotates in the second direction to swing the driving crossbar 6, so that the buffer 5 and the first swing arm 704 are no longer stopped, and the first swing arm 704 moves toward the base 1 under the restoring force of the reset member 3, and the first swing arm 704 and the second swing arm 705 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 motor 4 continues to rotate in the second direction by a predetermined angle, so that the buffer 5 continues to rotate relative to the first swing arm 704 and separates from the first swing arm 704, which can avoid the impact of the spoiler blade 2 on the buffer 5 and the driving motor 4 at the moment of closing.

[0082] According to the vehicle of the embodiment of the present invention, by adopting the above-mentioned vehicle diffuser, the overall performance of the vehicle can be effectively improved. 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.

[0083] 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", "clockwise", "counterclockwise", "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 limiting the present invention.

[0084] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present invention, a first feature "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0085] 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.

[0086] 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 spoiler blade, the spoiler blade being rotatable relative to the base between an open position and a closed position; A driving mechanism, the driving mechanism is arranged between the base and the spoiler blade, and the driving mechanism is used to drive the spoiler blade to rotate from the closed position to the open position; A reset member, the reset member is arranged between the base and the spoiler blade, and the reset member is used to provide a restoring force for the spoiler blade to rotate from the open position to the closed position; The spoiler blade rotates from the open position to the closed position, and a rotation angle of the spoiler blade is smaller than a rotation angle of the driving mechanism.

2. The vehicle diffuser according to claim 1, characterized in that After the spoiler blades rotate to the closed position, the driving mechanism continues to rotate by a predetermined angle, and after the spoiler blades rotate to the open position, the driving mechanism is in a stopped state.

3. The vehicle diffuser according to claim 1, characterized in that: The spoiler blades include a plurality of spoiler blades, and after all the spoiler blades rotate to the closed position, the driving mechanism continues to rotate by a predetermined angle.

4. The vehicle diffuser according to any one of claims 1 to 3, characterized in that: The driving mechanism includes a driving motor and a buffer, the driving motor is drivingly connected to the buffer, the buffer and the spoiler blade can be stop-connected, the driving motor moves in a first direction, so that the buffer and the spoiler blade stop to allow the spoiler blade to rotate from the closed position to the open position; the driving motor moves in a second direction, and the spoiler blade rotates from the open position to the closed position under the action of the restoring force of the reset member, and the first direction and the second direction are opposite.

5. The vehicle diffuser according to claim 4, characterized in that: The spoiler blade rotates from the open position to the closed position, and a rotation angle of the spoiler blade is smaller than a rotation angle of the drive motor.

6. The vehicle diffuser according to claim 4, characterized in that After the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to allow the buffer member to continue to rotate relative to the spoiler blade.

7. The vehicle diffuser according to claim 4, characterized in that: After the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to separate the buffer member from the spoiler blade.

8. The vehicle diffuser according to claim 4, characterized in that The buffer member is a cam.

9. The vehicle diffuser according to claim 4, characterized in that: The spoiler blades include a plurality of spoiler blades, each of which is stop-connected with a plurality of buffer members. The driving mechanism also includes a driving cross bar, which is fixedly connected with the plurality of buffer members. The driving motor is drivingly connected with the plurality of buffer members via the driving cross bar.

10. The vehicle diffuser according to claim 9, characterized in that The driving mechanism also includes a swing arm, which is mounted on the driving cross bar and can rotate around the circumference of the driving cross bar. The swing arm is connected to the spoiler blade, and the spoiler blade is stop-connected with the buffer member through the swing arm. The driving motor moves in a first direction so that the buffer member and the swing arm stop to rotate the spoiler blade from the closed position to the open position; the driving motor moves in a second direction, and the swing arm drives the spoiler blade to rotate from the open position to the closed position under the action of the restoring force of the reset member, and the first direction and the second direction are opposite.

11. The vehicle diffuser according to claim 10, characterized in that After the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to allow the buffer member to continue to rotate relative to the swing arm.

12. The vehicle diffuser according to claim 10, characterized in that After the spoiler blade rotates to the closed position, the drive motor continues to rotate by a predetermined angle to separate the buffer member from the swing arm.

13. The vehicle diffuser according to claim 1, characterized in that After the spoiler blade rotates to the closed position, the driving mechanism continues to rotate by a predetermined angle, where the predetermined angle is α, wherein α satisfies: 0°<α≤10°.

14. The vehicle diffuser according to claim 13, characterized in that The α satisfies: 3°≤α≤7°.

15. The vehicle diffuser according to claim 10, characterized in that The buffer member has a buffer member abutment surface; The swing arm has a swing arm abutment surface, and the swing arm abutment surface is detachably matched with the buffer member abutment surface, and the swing arm abutment surface abuts against the buffer member abutment surface to rotate the spoiler blade from the closed position to the open position.

16. The vehicle diffuser according to claim 15, characterized in that The swing arm abutment surface and the buffer member abutment surface are respectively formed as planes.

17. The vehicle diffuser according to claim 10, characterized in that The reset member is a reset torsion spring, and the reset member is sleeved on the driving cross bar. Two ends of the reset member are respectively abutted against the swing arm and the base.

18. The vehicle diffuser according to claim 10, characterized in that The driving cross bar is provided with a stopper, and the reset member is located between the stopper and the swing arm to limit the movement of the reset member in the axial direction of the driving cross bar.

19. The vehicle diffuser according to claim 10, characterized in that The swing arm comprises a first swing arm sleeve and a second swing arm sleeve which are spaced apart from each other. The swing arm is sleeved on the driving cross bar through the first swing arm sleeve and the second swing arm sleeve. The buffer is located between the first swing arm sleeve and the second swing arm sleeve.

20. The vehicle diffuser according to claim 9, characterized in that Further including: A limiting member is provided through the driving cross bar and the buffer member to fix the buffer member on the driving cross bar.

21. The vehicle diffuser of claim 19, wherein: The limiting member is an elastic cylindrical pin, and the buffer member is fixed on the driving cross bar through interference fit of the limiting member.

22. The vehicle diffuser according to any one of claims 9 to 21, characterized in that: The swing arm comprises: a first swing arm, one end of which is sleeved on the driving cross bar, and the reset member cooperates with the first swing arm; A second swing arm, one end of the second swing arm is rotatably connected to the other end of the first swing arm, and when the spoiler blade is located at the open position, the first swing arm and the second swing arm are located on the same straight line.

23. A vehicle, characterized in that: A vehicle diffuser comprising any one of claims 1-22.

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