Diffuser body, active diffuser and vehicle

Abstract

The utility model relates to a diffuser body, an active diffuser and a vehicle, the active diffuser comprises a diffuser body, a spoiler and a driving device, the driving device comprises a driver, a first linkage piece and a second linkage piece, the driver is arranged on the diffuser body and located between the first linkage piece and the second linkage piece, and the driver drives the spoiler to swing through the first linkage piece and the second linkage piece. According to the active diffuser, the aerodynamic performance of the whole vehicle can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, specifically, relate to a diffuser main part, active diffuser and vehicle. BACKGROUND

[0002] In order to improve the whole vehicle aerodynamic performance, improve the vehicle bottom air flow efficiency, the vendor sets up active diffuser at the bottom of the rear of the vehicle. Active diffuser can present different angle state according to the speed of vehicle driving, active diffuser can reduce air resistance under low speed state, increase endurance, increase down pressure under high speed state, improve the stability of steering. In the related art, the driving structure design of spoiler of active diffuser is unreasonable, leading to the aerodynamic performance of active diffuser during the swing process of spoiler or after the swing of spoiler. SUMMARY

[0003] The utility model aims at at least in certain extent solve one of the technical problems in the related art.

[0004] Therefore, the embodiment of the utility model provides an active diffuser that can improve the aerodynamic performance of the whole vehicle.

[0005] The embodiment of the utility model further provides a vehicle diffuser main part.

[0006] The embodiment of the utility model further provides a vehicle.

[0007] The active diffuser of the embodiment of the utility model includes: diffuser main part, spoiler and drive arrangement, the drive arrangement includes driver, first linkage and second linkage, the driver is located between the first linkage and the second linkage and is arranged on the diffuser main part, and the driver drives the spoiler swing through the first linkage and the second linkage.

[0008] According to the active diffuser of the embodiment of the utility model, since the driver is arranged on the diffuser main part and located between the first linkage and the second linkage, when the driver drives the spoiler swing through the first linkage and the second linkage, the first linkage and the second linkage can drive the spoiler swing synchronously with substantially same torque, compared with the scheme that the driving module is offset and installed on the length direction side of the diffuser main part, the angle consistency of the left and right sides of the spoiler during the swing process or after the swing can be guaranteed, and therefore the aerodynamic performance of the active diffuser can be improved.

[0009] In some embodiments, the first linkage and the second linkage are symmetrically arranged about the driver.

[0010] In some embodiments, the driving device further comprises a first transmission component and a second transmission component, the driver is connected to the first linkage through the first transmission component, and the driver is connected to the second linkage through the second transmission component.

[0011] In some embodiments, the first transmission component and the second transmission component are symmetrically arranged with respect to the driver.

[0012] In some embodiments, the first transmission component comprises a first transmission shaft and a first connecting rod, a first end of the first transmission shaft is connected to the driver, a second end of the first transmission shaft is connected to the first connecting rod, a first end of the first linkage is pivotably connected to the first connecting rod, and a second end of the first linkage is pivotably connected to the spoiler; the second transmission component comprises a second transmission shaft and a second connecting rod, a first end of the second transmission shaft is connected to the driver, a second end of the second transmission shaft is connected to the second connecting rod, a first end of the second linkage is pivotably connected to the second connecting rod, and a second end of the second linkage is pivotably connected to the spoiler.

[0013] In some embodiments, the diffuser body comprises a diffuser bracket and a pressing plate, the pressing plate and the diffuser bracket jointly define a limiting channel, and at least one of the first transmission shaft and the second transmission shaft is fitted in the limiting channel.

[0014] In some embodiments, an inner wall of the limiting channel is provided with a limiting groove, and an outer wall of at least one of the first transmission shaft and the second transmission shaft is provided with a flange, the flange being fitted in the limiting groove.

[0015] In some embodiments, the diffuser bracket is provided with a limiting block, and an outer wall of at least one of the first transmission shaft and the second transmission shaft is provided with a stop block, the stop block being abuttable against the limiting block when the spoiler rotates to a limit position.

[0016] In some embodiments, a first end of the first linkage is provided with a first fixed hole for connecting with the driver, a second end of the first linkage is provided with a second fixed hole for connecting with the spoiler, and at least one of the first fixed hole and the second fixed hole is provided with a buffer bushing.

[0017] In some embodiments, the active diffuser further comprises a fastener, the fastener comprises a nut pin and a threaded member, the nut pin is provided in the buffer bushing along one end of the buffer bushing, the threaded member is provided in the buffer bushing along the other end of the buffer bushing, and the threaded member is threadedly fitted with the nut pin.

[0018] In some embodiments, the active diffuser further comprises a buffer block arranged on a side of the diffuser body facing the spoiler, and the buffer block is abuttable against the spoiler.

[0019] In some embodiments, the spoiler comprises an upper plate body, a lower plate body and a spoiler support, the upper plate body and the lower plate body are arranged on opposite sides of the spoiler support respectively, and at least one of the upper plate body and the lower plate body is clamped with the spoiler support.

[0020] In some embodiments, at least one of the lower plate body and the diffuser body is provided with a water leakage hole.

[0021] In some embodiments, the spoiler is rotatable relative to the diffuser body between an open position and a closed position, an included angle between a lower side of the spoiler and the ground is A in the open position, and an included angle between the lower side of the spoiler and the ground is B in the closed position, wherein 0≤A≤5° and 25°≤B≤35°.

[0022] The diffuser body of another embodiment of the utility model has a driver mounting portion, the driver mounting portion is located in the middle of the diffuser body along the length direction of the diffuser body.

[0023] The diffuser body according to the embodiment of the utility model, since the driver mounting portion is located in the middle of the diffuser body along the length direction of the diffuser body, compared with the scheme that the driver mounting portion is arranged on one side of the diffuser body along the length direction, the angle consistency of the left and right sides of the spoiler during swinging or after swinging can be ensured, and therefore the aerodynamic performance of the active diffuser can be improved.

[0024] In some embodiments, the diffuser body has a first side and a second side opposite in the length direction thereof, and the driver mounting portion is located in the middle of the first side and the second side.

[0025] In some embodiments, the diffuser body comprises a diffuser support and a diffuser trim panel, the diffuser trim panel is mounted on the rear side of the diffuser support, and the diffuser support is provided with a third fixing hole for connecting with a rear wall panel of a vehicle body.

[0026] In some embodiments, the diffuser body further comprises a first elastic ring and a first bushing, the first elastic ring is mounted in the third fixing hole, and the first bushing is sleeved in the first elastic ring.

[0027] In some embodiments, the diffuser panel is provided with a plurality of first clamping members, the plurality of first clamping members are arranged on the diffuser panel at intervals, the diffuser support is provided with a plurality of first clamping holes, and the plurality of first clamping members and the plurality of first clamping holes are one-to-one corresponding and matched.

[0028] The vehicle of another embodiment of the embodiment of the utility model comprises the active diffuser of any one of the embodiments of the utility model or the diffuser body of any one of the embodiments of the utility model.

[0029] The vehicle of the embodiment of the embodiment of the utility model can guarantee the angle consistency of the left and right sides of the spoiler during oscillation or after oscillation, thereby improving the aerodynamic performance of the active diffuser. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the side view of the active diffuser (the spoiler is in the open position) of the embodiment of the utility model.

[0031] Figure 2 is the side view of the active diffuser (the spoiler is in the closed position) of the embodiment of the utility model.

[0032] Figure 3 is the perspective view of the active diffuser of the embodiment of the utility model.

[0033] Figure 4 is the exploded view of the active diffuser of the embodiment of the utility model.

[0034] Figure 5 is the exploded view of the driving device of the active diffuser of the embodiment of the utility model.

[0035] Figure 6 is the sectional view of the first linkage (second linkage) and fastener of the active diffuser of the embodiment of the utility model after installation.

[0036] Figure 7 is the schematic view of the diffuser body of the active diffuser of the embodiment of the utility model.

[0037] Figure 8 is the exploded view of the diffuser body of the active diffuser of the embodiment of the utility model.

[0038] Figure 9 is the partial view of the diffuser support of the active diffuser of the embodiment of the utility model.

[0039] Figure 10 is the sectional view of the diffuser support of the active diffuser of the embodiment of the utility model.

[0040] Figure 11Is the perspective view of the diffuser decorative plate of the active diffuser of the embodiment of the utility model.

[0041] Figure 12 Is the schematic view of the spoiler of the active diffuser of the embodiment of the utility model.

[0042] Figure 13 Is Figure 12 The enlarged view of P in the middle.

[0043] Figure 14 Is the exploded view of the spoiler of the active diffuser of the embodiment of the utility model.

[0044] Reference signs:

[0045] 1, diffuser main body;11, diffuser support;111, limit block;112, driver installation part;1121, installation groove;113, third fixed hole;114, first clamping hole;12, pressing plate;13, limit channel;131, limit slot;14, fastener;141, nut pin;142, threaded part;15, buffer block;16, diffuser decorative plate;161, first clamping part;162, license plate installation hole;171, first elastic ring;172, first bushing;181, first side;182, second side;

[0046] 2, spoiler;21, lower plate body;211, water leakage hole;212, first clamping column;22, upper plate body;221, ear seat;2211, cooperation hole;23, spoiler support;231, first clamping hook;232, first insertion hole;24, pivot;

[0047] 3, driving device;31, driver;32A, first linkage;32B, second linkage;321, first fixed hole;322, second fixed hole;33A, first transmission part;331A, first transmission shaft;3311, flange;3312, stop block;332A, first connecting rod;33B, second transmission part;331B, second transmission shaft;332B, second connecting rod;34, buffer bushing. DETAILED DESCRIPTION

[0048] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0049] The following refers to the drawings Figures 1 to 14 The diffuser main body, active diffuser and vehicle of the embodiment of the utility model are described.

[0050] As Figures 1 to 5As shown, the active diffuser of the embodiment of the utility model includes: diffuser main part 1, spoiler 2 and drive device 3, drive device 3 includes driver 31, first linkage 32A and second linkage 32B, driver 31 is located between first linkage 32A and second linkage 32B on diffuser main part 1, and driver 31 drives spoiler 2 swing through first linkage 32A and second linkage 32B.

[0051] According to the embodiment of the utility model, since driver 31 is located between first linkage 32A and second linkage 32B on diffuser main part 1, when driver 31 drives spoiler 2 swing through first linkage 32A and second linkage 32B, first linkage 32A and second linkage 32B can drive spoiler 2 swing synchronously with substantially same torque, compared with the scheme that "drive module is offset and installed on the length direction side of diffuser main part 1", the angle consistency of left and right sides of spoiler 2 during swing or after swing can be guaranteed, so that the airflow resistance of left and right sides of spoiler 2 is substantially balanced, thereby improving the aerodynamic performance of active diffuser.

[0052] It can be understood that, as Figure 4 shown, first linkage 32A and second linkage 32B are arranged along the length direction of spoiler 2, and driver 31 is located between first linkage 32A and second linkage 32B along the length direction of diffuser main part 1, and driver 31 is located at the middle position of diffuser main part 1.

[0053] In the example of the utility model, first linkage 32A is arranged adjacent to the left side of spoiler 2, and second linkage 32B is arranged adjacent to the right side of spoiler 2. Since driver 31 is located between first linkage 32A and second linkage 32B along the length direction of diffuser main part 1, so that the torque of the two linkages (first linkage 32A and second linkage 32B) is substantially equal, when first linkage 32A and second linkage 32B drive the left and right sides of spoiler 2 to swing, the synchronous rotation of the left and right sides of spoiler 2 can be guaranteed, so that the airflow resistance of the left and right sides of spoiler 2 is substantially balanced, thereby improving the aerodynamic performance of active diffuser.

[0054] As Figure 4 shown, first linkage 32A and second linkage 32B are symmetrically arranged about driver 31. Thus, the distance between first linkage 32A and driver 31 and the distance between second linkage 32B and driver 31 can be equal, thereby further improving the accuracy of the swing angle of spoiler 2.

[0055] In other examples, the driving device 3 further comprises a third linkage (not shown), the first linkage 32A, the second linkage 32B and the third linkage are arranged at intervals along the length direction of the spoiler 2, and the driver 31 is connected with the first linkage 32A, the second linkage 32B and the third linkage at the same time to drive the spoiler 2 to swing between the open position and the closed position, thereby further improving the accuracy of the swing angle of the spoiler 2 and improving the aerodynamic performance of the active diffuser.

[0056] Optionally, as shown in Figures 3 to 5 the driving device 3 further comprises a first transmission component 33A and a second transmission component 33B, the driver 31 is connected with the first linkage 32A through the first transmission component 33A, and the driver 31 is connected with the second linkage 32B through the second transmission component 33B, thereby improving the linkage effect of the first linkage 32A and the second linkage 32B and ensuring that the first linkage 32A and the second linkage 32B are synchronized at all times during movement. It can be understood that the first linkage 32A and the second linkage 32B are driven by the same driver 31, thereby ensuring the consistency of the first linkage 32A and the second linkage 32B when they act.

[0057] Exemplarily, the first transmission component 33A and the second transmission component 33B are symmetrically arranged about the driver 31, thereby making the distance between the first linkage 32A and the driver 31 equal to the distance between the second linkage 32B and the driver 31, thereby further improving the accuracy of the swing angle of the spoiler 2.

[0058] As shown in Figure 4 and Figure 5 the first transmission component 33A comprises a first transmission shaft 331A and a first connecting rod 332A, the first end of the first transmission shaft 331A is connected with the driver 31, the second end of the first transmission shaft 331A is connected with the first connecting rod 332A, the first end of the first linkage 32A is pivotably connected with the first connecting rod 332A, and the second end of the first linkage 32A is pivotably connected with the spoiler 2.

[0059] It can be understood that the first connecting rod 332A is fixedly connected with the first transmission shaft 331A. For example, the first connecting rod 332A and the first transmission shaft 331A can be integrally formed, or can be fixed together by welding or bolt connection. The first transmission shaft 331A extends generally in the left-right direction, and the extension direction of the first connecting rod 332A is generally perpendicular to the extension direction of the first transmission shaft 331A. In other words, the connection between the first connecting rod 332A and the first transmission shaft 331A is generally L-shaped.

[0060] As shown in Figure 1As shown, the rear side of the spoiler 2 is pivotally connected to the diffuser body 1 through a pivot 24, the first transmission component 33A, the first linkage 32A, the vane and the diffuser body 1 form a four-bar linkage structure, so that the overturning process of the spoiler 2 is more stable, and the structural strength is higher.

[0061] In an example, the driver 31 is a motor, and the first end of the first transmission shaft 331A is connected to the driver 31 (motor) through a spline structure, so as to facilitate the disassembly and assembly of the driver 31 and the first transmission shaft 331A, and the transmission is stable.

[0062] As shown in Figure 4 , Figure 5 , the second transmission component 33B includes a second transmission shaft 331B and a second linkage 332B, the first end of the second transmission shaft 331B is connected to the driver 31, the second end of the second transmission shaft 331B is connected to the second linkage 332B, the first end of the second linkage 32B is pivotally connected to the second linkage 332B, and the second end of the second linkage 32B is pivotally connected to the spoiler 2.

[0063] It can be understood that the second linkage 332B is fixedly connected to the second transmission shaft 331B. For example, the second linkage 332B and the second transmission shaft 331B can be integrally formed, or can be fixedly connected by welding or bolt connection. The second transmission shaft 331B extends in the left-right direction, and the extension direction of the second linkage 332B is substantially perpendicular to the extension direction of the second transmission shaft 331B. In other words, the connection between the second linkage 332B and the second transmission shaft 331B is substantially L-shaped.

[0064] The second transmission component 33B, the second linkage 32B, the vane and the diffuser body 1 form a four-bar linkage structure, so that the overturning process of the spoiler 2 is more stable, and the structural strength is higher.

[0065] In an example, the first end of the second transmission shaft 331B is connected to the driver 31 through a spline structure, so as to facilitate the disassembly and assembly of the driver 31 and the second transmission shaft 331B, and the transmission is stable.

[0066] Optionally, as shown in Figure 3 , Figure 4 , Figure 9As shown, the diffuser body 1 comprises a diffuser bracket 11 and a pressing plate 12, the pressing plate 12 and the diffuser bracket 11 enclose a limiting channel 13, and at least one of the first transmission shaft 331A and the second transmission shaft 331B is matched in the limiting channel 13. It can be understood that the limiting channel 13 can radially limit the first transmission shaft 331A and / or the second transmission shaft 331B, so as to limit the radial swing of the first transmission shaft 331A and / or the second transmission shaft 331B during rotation, thereby improving the stability of the first transmission shaft 331A and / or the second transmission shaft 331B during operation.

[0067] For example, the pressing plate 12 is two, and the two pressing plates 12 are arranged along the length direction of the diffuser bracket 11, one pressing plate 12 corresponds to the first transmission shaft 331A, and the other pressing plate 12 corresponds to the second transmission shaft 331B. In this way, the stability of the first transmission shaft 331A and the second transmission shaft 331B during operation can be improved.

[0068] For example, the pressing plate 12 and the diffuser bracket 11 are connected by bolts, so as to facilitate the installation and disassembly of the pressing plate 12.

[0069] As shown in Figure 8 and Figure 9 , the inner wall of the limiting channel 13 is provided with a limiting groove 131, and the outer wall of at least one of the first transmission shaft 331A and the second transmission shaft 331B is provided with a flange 3311, the flange 3311 is matched in the limiting groove 131, and the limiting groove 131 is used for axially limiting the flange 3311. It can be understood that the width of the limiting groove 131 in the left-right direction is slightly larger than the width of the flange 3311 in the left-right direction, so that the flange 3311 is assembled in the limiting groove 131, the flange 3311 can rotate relative to the limiting groove 131, and the limiting groove 131 can axially limit the flange 3311, so as to avoid the axial movement of the first transmission shaft 331A and the second transmission shaft 331B during rotation.

[0070] Optionally, as shown in Figure 4 and Figure 9 , the diffuser bracket 11 is provided with a limiting block 111, and the outer wall of at least one of the first transmission shaft 331A and the second transmission shaft 331B is provided with a stop block 3312, which can abut against the limiting block 111 when the spoiler 2 rotates to the limit position. It can be understood that the stop block 3312 can abut against the limiting block 111 when the spoiler 2 rotates to the limit position of the open position or the limit position of the closed position, so as to limit the further rotation of the first transmission shaft 331A and the second transmission shaft 331B, thereby making the set angle after the blade opening and closing more accurate, and improving the aerodynamic performance of the active diffuser.

[0071] In some embodiments, asFigure 6 As shown in the drawings, the first end of the first linkage 32A is provided with a first fixed hole 321 for connecting with the driver 31, the second end of the first linkage 32A is provided with a second fixed hole 322 for connecting with the spoiler 2, and at least one of the first fixed hole 321 and the second fixed hole 322 is provided with a buffer bushing 34. For example, the first fixed hole 321 and the second fixed hole 322 are both provided with the buffer bushing 34, and the buffer bushing 34 can be a plastic bushing.

[0072] The diffuser body 1 of the embodiment of the utility model can reduce the noise when the first linkage 32A rotates relative to the first connecting rod 332A and the spoiler 2 by arranging the buffer bushing 34 in the first fixed hole 321 and the second fixed hole 322.

[0073] Correspondingly, as shown in the drawings, Figure 6 The first end of the second linkage 32B is provided with a first fixed hole 321 for connecting with the driver 31, the second end of the second linkage 32B is provided with a second fixed hole 322 for connecting with the spoiler 2, and at least one of the first fixed hole 321 and the second fixed hole 322 is provided with a buffer bushing 34. For example, the first fixed hole 321 and the second fixed hole 322 are both provided with the buffer bushing 34, and the buffer bushing 34 can be a plastic bushing.

[0074] The diffuser body 1 of the embodiment of the utility model can reduce the noise when the second linkage 32B rotates relative to the first connecting rod 332A and the spoiler 2 by arranging the buffer bushing 34 in the first fixed hole 321 and the second fixed hole 322.

[0075] Optionally, as shown in the drawings, Figure 6 The active diffuser further comprises a fastener 14, the fastener 14 comprises a nut pin 141 and a threaded part 142, the nut pin 141 is arranged in the buffer bushing 34 along one end of the buffer bushing 34, the threaded part 142 is arranged in the buffer bushing 34 along the other end of the buffer bushing 34, and the threaded part 142 is threadedly matched with the nut pin 141.

[0076] Taking the connection structure of the first linkage 32A and the spoiler 2 as an example. As shown in the drawings, Figure 4 and Figure 13 The spoiler 2 is provided with an ear seat 221, the ear seat 221 is provided with a matching hole 2211, the second fixed hole 322 and the matching hole 2211 are coaxially arranged, and the fastener 14 can act as a shaft pin and is arranged in the second fixed hole 322 and the matching hole 2211. Since the threaded part 142 of the fastener 14 is threadedly matched with the nut pin 141, the fastener 14 can be separated from the second fixed hole 322 and the matching hole 2211, and when the fastener 14 is removed, the inner walls of the second fixed hole 322 and the matching hole 2211 will not be damaged, and the disassembly is convenient.

[0077] Optionally, as shown in the drawings,Figure 11 As shown, the active diffuser further comprises a buffer block 15 arranged on the side of the diffuser body 1 facing the spoiler 2, and the buffer block 15 can abut against the spoiler 2. It can be understood that when the spoiler 2 swings from the open position to the closed position, the spoiler 2 can abut against the buffer block 15 to avoid paint surface wear caused by frequent contact of the spoiler 2 with the diffuser body 1. For example, the buffer block 15 can be made of rubber or plastic.

[0078] Exemplarily, as shown in Figure 11 The buffer block 15 is two, and the two buffer blocks 15 are arranged on the diffuser body 1 in the left-right direction and are detachably connected with the diffuser body 1, so as to facilitate subsequent disassembly and replacement of the buffer block 15.

[0079] In some embodiments, as shown in Figure 14 The spoiler 2 comprises an upper plate body 22, a lower plate body 21 and a spoiler bracket 23, the upper plate body 22 and the lower plate body 21 are arranged on opposite sides (upper and lower sides) of the spoiler bracket 23, and at least one of the upper plate body 22 and the lower plate body 21 is clamped with the spoiler bracket 23, so as to facilitate assembly of the spoiler 2 and make the spoiler 2 have high structural strength and be not easy to deform.

[0080] As shown in Figure 14 The upper plate body 22 is connected with the spoiler bracket 23 through screws or a clamping structure. For example, the spoiler bracket 23 is provided with a first clamping hook 231, and the inner wall surface of the upper plate body 22 is provided with a first clamping groove (not shown), and the first clamping hook 231 is clamped with the first clamping groove.

[0081] As shown in Figure 14 The lower plate body 21 is connected with the spoiler bracket 23 through an adhesive tape and a clamping structure. For example, the adhesive tape is a 3M adhesive tape, and the adhesive tape extends along the length direction of the lower plate body 21. The spoiler bracket 23 is provided with a first insertion hole 232, and the lower plate body 21 is provided with a first clamping column 212, and the first clamping column 212 penetrates into the first insertion hole 232.

[0082] Optionally, as shown in Figure 7 and Figure 14 At least one of the lower plate body 21 and the diffuser body 1 is provided with a water leakage hole 211. For example, the lower plate body 21 and the diffuser body 1 are both provided with the water leakage hole 211, so as to prevent the problem of water accumulation in the lower plate body 21 and the diffuser body 1.

[0083] As shown in Figure 14 The water leakage hole 211 is arranged on the rear side of the lower plate body 21. The water leakage hole 211 is a plurality of, and the plurality of water leakage holes 211 are arranged in the length direction of the lower plate body 21.

[0084] Optionally, as shown in Figure 1 and Figure 2As shown, the spoiler 2 is rotatable relative to the diffuser body 1 between an open position and a closed position, in the open position, the included angle between the lower side of the spoiler 2 and the ground is A, in the closed position, the included angle between the lower side of the spoiler 2 and the ground is B, wherein 0≤A≤5°, 25°≤B≤35°.

[0085] It can be understood that when the spoiler 2 is in the open position, the spoiler 2 can be slightly inclined upward or slightly inclined downward along the front-to-back direction. At this time, the inclination angle between the spoiler 2 and the ground is selected between 0-5°. For example, A can be 0°, 1°, 2°, 3°, 4°, 5°. The active diffuser of the embodiment of the utility model adopts the above angle parameters when the spoiler 2 is in the open position, which can make the vehicle flow tail vacuum turbulent flow area move backward, reduce the wind resistance, and improve the vehicle endurance performance.

[0086] When the spoiler 2 is in the closed position, the spoiler 2 gradually inclines upward along the front-to-back direction, and the inclination angle between the spoiler 2 and the ground is selected between 25°-35° at this time. For example, B can be 25°, 28°, 30°, 32°, 35°, 35°. The active diffuser of the embodiment of the utility model adopts the above angle parameters when the spoiler 2 is in the closed position, which can increase the airflow velocity at the bottom of the vehicle, reduce the air pressure, reduce the lift, control the vehicle to float, ensure that the tire has enough adhesion, and make the automobile can be close to the road, improve the stability of driving.

[0087] As shown in Figure 4 , Figure 7 and Figure 8 The diffuser body 1 of another embodiment of the utility model has a driver mounting portion 112, and the driver mounting portion 112 is located in the middle of the diffuser body 1 along the length direction of the diffuser body 1. It can be understood that the driver mounting portion 112 is used for installing the driver 31, and the driver 31 is used for driving the spoiler 2 to swing between the open position and the closed position.

[0088] According to the diffuser body 1 of the embodiment of the utility model, since the driver mounting portion 112 is located in the middle of the diffuser body 1 along the length direction of the diffuser body 1, compared with the scheme that the driver mounting portion 112 is arranged on one side of the diffuser body 1 along the length direction, the angle consistency of the left and right sides of the spoiler 2 during swinging or after swinging can be guaranteed, thereby the aerodynamic performance of the active diffuser can be improved.

[0089] As shown in Figure 7As shown, the diffuser body 1 has a first side 181 and a second side 182 opposite in the length direction thereof, and the driver mounting portion 112 is located in the middle of the first side 181 and the second side 182. Thus, the distance between the driver mounting portion 112 and the first side 181 is equal to the distance between the driver mounting portion and the second side 182, so that the angle consistency of the spoiler 2 on both sides during the swinging process or after the swinging process can be further improved, and the aerodynamic performance of the active diffuser can be improved.

[0090] Exemplarily, the driver mounting portion 112 can be a mounting groove 1121, and the driver 31 is fixed in the mounting groove 1121 through a clamping structure and a bolt.

[0091] Optionally, as shown, Figure 4 As shown, the diffuser body 1 includes a diffuser bracket 11 and a diffuser trim plate 16, the diffuser trim plate 16 is installed on the rear side of the diffuser bracket 11, and the diffuser bracket 11 is provided with a third fixing hole 113 for connecting with the rear panel of the vehicle body. It can be understood that the diffuser body 1 of the embodiment of the utility model can make the integrity of the diffuser body 1 better and the appearance more beautiful by setting the diffuser trim plate 16. In addition, the diffuser body 1 of the embodiment of the utility model is used for connecting with the rear panel of the vehicle body through the third fixing hole 113, compared with the scheme of "the diffuser body 1 is arranged on the rear bumper", the stability and reliability after installation of the diffuser body 1 can be improved, and the problem of the rear bumper sinking can be avoided.

[0092] As shown in the drawings, Figure 9 And Figure 10 As shown, the diffuser body 1 further includes a first elastic ring 171 and a first bushing 172, the first elastic ring 171 is installed in the third fixing hole 113, and the first bushing 172 is sleeved in the first elastic ring 171. It can be understood that the first elastic ring 171, the first bushing 172 and the third fixing hole 113 are located on the same axis, and the first elastic ring 171 is arranged between the first bushing 172 and the inner wall of the third fixing hole 113. Thus, the noise at the connecting position of the diffuser body 1 and the rear panel of the vehicle body can be reduced, and the NVH effect of the vehicle can be improved.

[0093] Exemplarily, the first elastic ring 171 is a rubber ring, and the first bushing 172 is a metal bushing, and a bolt can be threaded in the first bushing 172 to connect with the rear panel of the vehicle body.

[0094] Optionally, as shown, Figure 8As shown, the diffuser panel 16 is provided with a plurality of first clamping members 161, the plurality of first clamping members 161 are arranged on the diffuser panel 16 at intervals, the diffuser support 11 is provided with a plurality of first clamping holes 114, and the plurality of first clamping members 161 and the plurality of first clamping holes 114 are matched one by one. Therefore, the convenience of disassembling the diffuser panel 16 and the diffuser support 11 can be improved, and the fixing structure of the diffuser panel 16 and the diffuser support 11 is relatively firm, and the reliability is high.

[0095] As shown in the drawings, Figure 11 As shown, the diffuser panel 16 is provided with two license plate mounting holes 162, the license plate mounting holes 162 are arranged at intervals along the length direction of the diffuser panel 16, a pull rivet nut can be arranged in the license plate mounting hole 162, and a fastening bolt can pass through the license plate, the pull rivet nut and be connected with the rear bumper of the vehicle.

[0096] Another embodiment of the vehicle of the embodiment of the utility model comprises the active diffuser of the utility model or the diffuser body 1 of the utility model. The technical advantages of the vehicle of the embodiment of the utility model are the same as those of the active diffuser and the diffuser body 1 of the above-mentioned embodiment, and details are not repeated here.

[0097] In the description of the utility model, it should be understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, structure and operation, and therefore cannot be understood as limiting the utility model.

[0098] In addition, the terms "first" and "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0099] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the concrete meaning of above terms in the utility model according to specific circumstances.

[0100] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can be that first and second features directly contact, or first and second features indirectly contact through intermediate medium.Moreover, first feature "over", "above" and "on" second feature can be that first feature is directly above or obliquely above second feature, or just indicates that the horizontal height of first feature is higher than that of second feature.First feature "under", "below" and "under" second feature can be that first feature is directly below or obliquely below second feature, or just indicates that the horizontal height of first feature is less than that of second feature.

[0101] In the utility model, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean 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 the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0102] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and the changes, modifications, replacements and variations of the above embodiments made by the ordinary skilled in the art are within the protection scope of the utility model.

Claims

1. An active diffuser characterized by, The active diffuser comprises: a diffuser body; a spoiler; a driving device, the driving device comprising a driver, a first linkage and a second linkage, the driver being arranged on the diffuser body and between the first linkage and the second linkage, the driver driving the spoiler to swing through the first linkage and the second linkage.

2. The active diffuser of claim 1, wherein, The first linkage and the second linkage are symmetrically arranged about the driver.

3. The active diffuser of claim 1, wherein, The driving device further comprises a first transmission component and a second transmission component, the driver being connected with the first linkage through the first transmission component, and the driver being connected with the second linkage through the second transmission component.

4. The active diffuser of claim 3, wherein, The first transmission component and the second transmission component are symmetrically arranged about the driver.

5. The active diffuser of claim 3, wherein, The first transmission component comprises a first transmission shaft and a first connecting rod, a first end of the first transmission shaft being connected with the driver, a second end of the first transmission shaft being connected with the first connecting rod, a first end of the first linkage being pivotally connected with the first connecting rod, and a second end of the first linkage being pivotally connected with the spoiler; The second transmission component comprises a second transmission shaft and a second connecting rod, a first end of the second transmission shaft being connected with the driver, a second end of the second transmission shaft being connected with the second connecting rod, a first end of the second linkage being pivotally connected with the second connecting rod, and a second end of the second linkage being pivotally connected with the spoiler.

6. The active diffuser of claim 5, wherein, The diffuser body comprises a diffuser support and a pressing plate, the pressing plate and the diffuser support jointly defining a limiting channel, at least one of the first transmission shaft and the second transmission shaft being fitted in the limiting channel.

7. The active diffuser of claim 6, wherein, An inner wall of the limiting channel is provided with a limiting groove, and an outer wall of at least one of the first transmission shaft and the second transmission shaft is provided with a flange, the flange being fitted in the limiting groove.

8. The active diffuser of claim 6, wherein, The diffuser support is provided with a limiting block, and an outer wall of at least one of the first transmission shaft and the second transmission shaft is provided with a stop block, the stop block being capable of abutting against the limiting block when the spoiler rotates to a limit position.

9. The active diffuser of claim 1, wherein, A first end of the first linkage is provided with a first fixed hole for connecting with the driver, and a second end of the first linkage is provided with a second fixed hole for connecting with the spoiler, at least one of the first fixed hole and the second fixed hole being provided with a buffer bushing.

10. The active diffuser of claim 9, wherein, The active diffuser further comprises a fastener, the fastener comprising a nut pin and a threaded member, the nut pin being arranged in the buffer bushing along one end of the buffer bushing, the threaded member being arranged in the buffer bushing along the other end of the buffer bushing, and the threaded member being threadedly fitted with the nut pin.

11. The active diffuser of claim 9, wherein, The active diffuser further comprises a buffer block, the buffer block being arranged on a side of the diffuser body facing the spoiler, and the buffer block being capable of abutting against the spoiler.

12. The active diffuser of claim 1, wherein, The spoiler comprises an upper plate body, a lower plate body and a spoiler support, the upper plate body and the lower plate body being arranged on opposite sides of the spoiler support respectively, and at least one of the upper plate body and the lower plate body being clamped with the spoiler support.

13. The active diffuser of claim 12, wherein, At least one of the lower plate body and the diffuser body is provided with a water leakage hole.

14. The active diffuser of any one of claims 1-13, wherein, The spoiler is rotatable relative to the diffuser body between an open position and a closed position, in the open position, an included angle between a lower side of the spoiler and the ground is A, in the closed position, an included angle between the lower side of the spoiler and the ground is B, wherein 0≤A≤5°, 25°≤B≤35°.

15. A diffuser body characterized by, The diffuser body has a driver mounting portion, which is located at a middle portion of the diffuser body along a length direction of the diffuser body.

16. The diffuser body of claim 15, wherein, The diffuser body has a first side and a second side opposite to each other in the length direction of the diffuser body, and the driver mounting portion is located at a middle portion between the first side and the second side.

17. The diffuser body of claim 15, wherein, The diffuser body comprises a diffuser bracket and a diffuser trim panel, the diffuser trim panel is mounted on a rear side of the diffuser bracket, and the diffuser bracket is provided with a third fixing hole for connecting with a rear wall of a vehicle body.

18. The diffuser body of claim 17, wherein, The diffuser body further comprises a first elastic ring and a first bushing, the first elastic ring is mounted in the third fixing hole, and the first bushing is sleeved on the first elastic ring.

19. The diffuser body of claim 17, wherein, The diffuser trim panel is provided with a plurality of first clamping members, the plurality of first clamping members are arranged on the diffuser trim panel at intervals, the diffuser bracket is provided with a plurality of first clamping holes, and the plurality of first clamping members and the plurality of first clamping holes are one-to-one correspondingly matched.

20. A vehicle characterized by The active diffuser of any one of claims 1-14 or the diffuser body of any one of claims 15-19.

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