CN113043836B

CN113043836B - Initiative air-inlet grille subassembly and vehicle front end module

Info

Publication number: CN113043836B
Application number: CN201911376087.1A
Authority: CN
Inventors: 陈东樱; 方海燕
Original assignee: Guangzhou Valeo Engine Cooling Co Ltd
Current assignee: Guangzhou Valeo Engine Cooling Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2022-07-29
Anticipated expiration: 2039-12-27
Also published as: CN113043836A

Abstract

The invention relates to an active grille shutter assembly and a vehicle front end module. According to the active air inlet grille component provided by the invention, the driving component is used for applying force to the blade blocked at the extreme position of the blade so as to enable the blade to have a tendency of continuously rotating, so that the blade and the driving component generate pretightening force, the pretightening force can eliminate movement gaps between moving parts and production assembly tolerance, and can reduce attenuation of the overturning angle of the blade caused by aging abrasion and performance reduction of the parts, so that the overturning angle of the blade is accurate. The vehicle front-end module provided by the invention comprises the active air inlet grille component, so that the vehicle front-end module also has the advantage of accurate turning angle of the blades.

Description

Initiative air-inlet grille subassembly and vehicle front end module

Technical Field

The present invention relates to an active grille shutter assembly and a vehicle front end module incorporating the same.

Background

A vehicle front end module, referred to as FEM for short, is a system component that integrates vehicle front end components. The vehicle front module integrates such parts as a cabin lock, a radiator, a condenser, an intercooler, an anti-collision beam, a buffer block, a sensor, a headlamp, a bumper and even a fender through a special framework.

The front end module of the vehicle also comprises an active air inlet grille, and the active air inlet grille can change the opening and closing of the air inlet grille to control air inflow and wind resistance, so that the fuel economy is improved, and the better working temperature of the engine is quickly reached.

There is an active grille shutter in the prior art, which comprises a main frame, a drive mechanism and a blade assembly. The main frame is provided with an air inlet, wherein the blade group comprises one or more blades, the blades are rotatably arranged at the air inlet, the driving mechanism is used for driving the blades to rotate so as to open or close the air inlet, and the blades are also used for guiding the airflow passing through the air inlet.

The active grille has the disadvantage that the turning angle of the blades is prone to be deviated after a period of use.

Disclosure of Invention

The invention aims to provide an active air inlet grille component which has the advantage of accurate overturning angle.

It is also an object of the present invention to provide a vehicle front end module that includes the above active grille shutter assembly.

To achieve the object, the active grille shutter assembly comprises a main frame and a blade group; the main frame includes a frame body having an air inlet, the blade group including at least one blade; the blades are rotatably provided on the frame body along a first rotation axis to adjust a flow direction of the air flow passing through the air inlet; the blade is arranged to be blocked when rotating from a blade normal position to a blade limit position; the active grille shutter assembly further includes a drive assembly for applying a force to the vanes that are blocked in the vane limit positions to cause the vanes to have a tendency to continue the rotation.

In one embodiment, the main frame further comprises a blade retaining structure, wherein the blade retaining structure is disposed on the frame body; the blade limiting structure is used for blocking the blade rotating to the blade limit position; the driving assembly is used for applying force to the blade blocked at the blade limit position by the blade limit structure so as to enable the blade to apply force to the blade limit structure.

In one embodiment, the number of the blades is plural; one of the two adjacent vanes that is blocked in the vane limit position is arranged to block the other vane.

In one embodiment, the blade retention structure comprises a first retention structure and a second retention structure; the first limiting structure is used for blocking the blade which rotates from the normal position of the blade to the first limit position of the blade along the first direction; the second limiting structure is used for blocking the blade which rotates from the normal position of the blade to the second limit position of the blade along the second direction; wherein the first direction and the second direction are opposite to each other.

In one embodiment, the blade has a blade body, a blade pivot portion and a blade attachment portion; the blade pivot portion is provided on the blade main body; the blade pivot portion is rotatably provided on the frame body along the first rotation axis; the blade connecting portion is provided on the blade main body offset from the first rotation axis; the drive assembly is configured to apply a force to the blade attachment portion.

In one embodiment, the drive assembly includes a link and a drive rod; one end of the driving rod is rotatably connected to the frame main body along a second rotating axis, and the other end of the driving rod is rotatably connected with the connecting rod; the connecting rod is rotatably connected with the blade connecting part;

the blades, the links, the drive rod, and the frame body collectively define a planar four-bar linkage; wherein the drive rod is in a neutral position when the blade is blocked in the blade limit position; the drive lever in the intermediate position is arranged to rotate about the second axis of rotation to drive the link to oscillate, thereby causing the link to apply a force to the blade connection.

In one embodiment, the main frame further comprises a drive rod limiting structure; the driving rod limiting structure is arranged on the frame main body; the driving rod limiting structure is used for blocking the driving rod which starts to rotate from the middle position to the driving rod limiting position.

In one embodiment, the drive rod limiting structure has a first limiting portion and a second limiting portion; the first limiting part is used for blocking the driving rod which rotates from the first middle position to the first driving rod limit position along the third direction; the second limiting part is used for blocking the driving rod which rotates from the second middle position to the second driving rod limit position along the fourth direction; wherein the third direction and the fourth direction are opposite to each other.

In one embodiment, the driving rod located at the first intermediate position rotates by a first included angle along the third direction to reach the first driving rod limit position; wherein the first included angle ranges from 5 ° to 10 °; and/or the driving rod at the second intermediate position rotates by a second included angle along the fourth direction to reach a second driving rod limit position; wherein the second included angle ranges from 5 ° to 10 °.

In one embodiment, one end of the drive rod is rotatably connected to the drive rod limiting structure.

In one embodiment, the drive assembly further comprises a drive module; the driving module comprises a seat body and a rotating part; the seat body is fixedly arranged on the frame main body, and the rotating part is rotatably arranged on the seat body; the driving rod comprises a main rod part and a rotating shaft part, the rotating shaft part is connected to one end of the main rod part, and the other end of the main rod part is rotatably connected with the connecting rod; the rotating shaft part is connected with the rotating part; the rotating part is used for driving the rotating shaft part to rotate along the second rotating axis, so that the driving rod is driven to rotate along the second rotating axis.

In one embodiment, the rotation shaft portion includes a first shaft body and a second shaft body; the first shaft body and the second shaft body are arranged together with the second rotating axis; wherein the first shaft body is rotatably connected to the frame main body, and the second shaft body is connected to the rotating portion; the rotating part is used for driving the second shaft body to rotate along the second rotating axis so as to drive the driving rod to rotate along the second rotating axis.

In one embodiment, the first position-limiting part has a first position-limiting surface, and the second position-limiting part has a second position-limiting surface; the first limiting surface is arranged to be attached to the first side surface of the main rod part, so that the driving rod is blocked by the first limiting part; the second limiting surface is arranged to be attached to the second side surface of the main rod part, so that the driving rod is blocked by the second limiting part.

In one embodiment, the first and second limiting surfaces define a third included angle.

In one embodiment, the vane pivot portion has a radially projecting hook for being blocked.

In one embodiment, the drive lever is arranged to be rotatable about the second axis of rotation between a first said intermediate position and a second said intermediate position to rotate the blade about the first axis of rotation between a first said blade limit position and a second said blade limit position.

A vehicle front end module for achieving the stated object comprises an active grille shutter arrangement as described above.

The positive progress effects of the invention are as follows: according to the active air inlet grille component provided by the invention, the driving component is used for applying force to the blade blocked at the extreme position of the blade so as to enable the blade to have a tendency of continuously rotating, so that the blade and the driving component generate pretightening force, the pretightening force can eliminate movement gaps between moving parts and production assembly tolerance, and can reduce attenuation of the overturning angle of the blade caused by aging abrasion and performance reduction of the parts, so that the overturning angle of the blade is accurate. The vehicle front-end module provided by the invention comprises the active air inlet grille component, so that the vehicle front-end module also has the advantage of accurate turning angle of the blades.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a top view of an active grille shutter assembly;

FIG. 2 is a schematic view of an active grille shutter assembly;

FIG. 3 is an exploded view of the active grille shutter assembly;

FIG. 4 is a schematic view of a drive assembly;

FIG. 5 is an exploded view of the drive assembly;

FIG. 6 is a cross-sectional view of the active grille shutter assembly taken along the line A-A in FIG. 1 when the vanes are in a normal position of the vanes;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 1 with the vane in a first vane limit position;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 1 with the vane in a first vane limit position;

FIG. 9 is a cross-sectional view of the active grille shutter assembly taken along the line B-B in FIG. 1 when the vanes are in a second vane limit position;

FIG. 10 is a cross-sectional view taken along line C-C of FIG. 1, with the vane in a first vane limit position;

FIG. 11 is a schematic view of the active grille shutter assembly of FIG. 1 taken along the direction C-C;

fig. 12 is an enlarged view at G in fig. 11;

FIG. 13 is an enlarged view of FIG. 11 with the link removed at G;

FIG. 14 is a cross-sectional view taken along line D-D of FIG. 1, with the vane in a first vane limit position;

FIG. 15 is a schematic view of the active grille shutter assembly of FIG. 1 taken along direction D-D;

FIG. 16 is a cross-sectional view of the active grille shutter assembly taken along the direction E-E in FIG. 1 when the drive rod is between the first intermediate position and the second intermediate position;

FIG. 17 is a cross-sectional view taken along line E-E of FIG. 1, with the drive rod in a first intermediate position;

FIG. 18 is a cross-sectional view of the active grille shutter assembly taken along the line E-E in FIG. 1 when the actuator arm is in a second intermediate position;

FIG. 19 is a schematic view of the active grille shutter assembly of FIG. 1 taken along the direction E-E;

fig. 20 is a schematic view of a driving rod limiting structure.

Detailed Description

The following discloses embodiments or examples of various implementations of the subject technology. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and do not limit the scope of the invention. For example, a first feature described later in the specification may be distributed over a second feature and may include embodiments in which the first and second features are distributed in direct association, or may include embodiments in which additional features may be formed between the first and second features, such that the first and second features may not be directly associated with each other. Additionally, reference numerals and/or letters may be repeated among the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.

It should be noted that fig. 1-20 are exemplary only, are not drawn to scale, and should not be construed as limiting the scope of the invention as actually claimed.

The active air inlet grille comprises a main frame, a driving mechanism and a blade group. The main frame is provided with an air inlet, wherein the blade group comprises one or more blades, the blades are rotatably arranged at the air inlet, the driving mechanism is used for driving the blades to rotate so as to open or close the air inlet, and the blades are also used for guiding the airflow passing through the air inlet.

Due to the movement clearance and production assembly tolerance between the moving parts of the active grille and the aging wear and performance degradation of the parts after a period of use, the turnover angle of the blade is attenuated due to the reasons, and the turnover angle of the blade is not accurate enough.

To solve the problem that the turning angle of the blade is not accurate enough, the present invention provides the following embodiments.

As shown in fig. 1, 2, 3, 6, 7, 8, 9, the active grille shutter assembly 90 includes a main frame 1 and a vane assembly 2; the main frame 1 includes a frame body 10, the frame body 10 having an air inlet 1a, the blade group 2 including at least one blade 20; the vane 20 is rotatably provided on the frame body 10 along a first rotation axis 20a to adjust a flow direction of the air flow passing through the air inlet 1 a.

The blade 20 has during rotation blade limit positions BEP1, BEP2, BEP1, BEP2 comprising a first blade limit position BEP1 and a second blade limit position BEP2 arranged in the direction of rotation of the blade 20. In fig. 1, 7, 8, 10, 14, 17, the blade 20 is in a first blade limit position BEP1, and in fig. 9, 18, the blade 20 is in a second blade limit position BEP 2.

The first vane limit position BEP1 may be, but is not limited to, a 0 ° position where the vanes 20 completely close the intake port 1 a. The second vane limit position BEP2 may be, but is not limited to, a 90 ° position in which the vanes 20 fully open the air inlet 1 a. Between the first vane limit position BEP1 and the second vane limit position BEP2 is the vane normal position BCP, shown as the 45 ° position in fig. 6 and 16. In this 45 ° position, the vanes 20 partially open the air inlet 1 a.

During the rotation of the blade 20, the blade 20 is set to be blocked from the blade normal position BCP to the blade limit positions BEP1, BEP 2.

As shown in fig. 3, 7 and 9, the blade 20 may be stopped by the blade stopper structure 11 provided on the frame body 10. The blade retaining structure 11 and the frame body 10 may both be made of plastic material and be integrally formed. The details of the blade restricting structure 11 will be described later.

In further embodiments, when the number of the blades 20 is plural, as shown in fig. 7, one of the blades 20 of the adjacent two blades 20 blocked at the first blade limit position BEP1 is arranged to block the other blade 20. Specifically, in the adjacent blades 20, the trailing edge of the blade 20 located at the front and the leading edge of the blade 20 located at the rear interfere with each other in the rotation direction, so that the adjacent two blades 20 are limited to each other.

As shown in fig. 7 and 9, the blade limiting structure 11 includes a first limiting structure 111 and a second limiting structure 112; the first stopper structure 111 is used for blocking the blade 20 rotating from the blade normal position BCP to the first blade limit position BEP1 in the first direction S1; the second limit structure 112 is used for blocking the blade 20 rotating from the blade normal position BCP to the second blade limit position BEP2 in the second direction S2; the first direction S1 and the second direction S2 are opposite. It should be noted that the vane normal position BCP is not a fixed position, but is a position between the first vane limit position BEP1 and the second vane limit position BEP 2. The 45 position is only one of all the vane normal positions BCP. Such a solution enables the blade 20 to be restrained in both directions of rotation.

The first stopper structure 111 may be provided along the front and rear edges of the air inlet port 1a, and the second stopper structure 112 may be provided at the left and right sides of the air inlet port 1 a.

With continued reference to fig. 1, 2, 3, 6, 7, 8, 9, to address the issue of the blade tip angle being less accurate, the active grille shutter assembly 90 further includes a drive assembly 3, the drive assembly 3 being configured to apply a force F1, F2 to the blade 20 blocked in the blade limit positions BEP1, BEP2 such that the blade 20 has a tendency to continue the rotation. It should be noted that the drive assembly 3 may be, but is not limited to, being used to drive the blade 20 between the first blade limit position BEP1 and the second blade limit position BEP 2. The specific structure of the drive assembly 3 will be described later.

Since the vanes 20 are blocked in the vane extreme positions BEP1, BEP2, the tendency of the vanes 20 to continue this rotation enables pre-stressing of the vanes 20 and the drive assembly 3, which pre-stressing not only eliminates play between the moving parts of the drive assembly 3 and production assembly tolerances, but also reduces attenuation of the vane flip angle due to aging wear and performance degradation of the parts, thus making the vane flip angle accurate.

For two adjacent blades 20, as shown in fig. 7, the trailing edge of the blade 20 located at the front and the leading edge of the blade 20 located at the rear are abutted against each other by the forces F1 and F2, so as to generate the pre-tightening force.

For the case that the blade 20 is limited by the blade limiting structure 11, as shown in fig. 7 and 9, the driving assembly 3 is configured to apply a force F1 to the blade 20 blocked by the first limiting structure 111, so that the blade 20 blocked by the first limiting structure 111 applies a force T1 to the first limiting structure 111, and thus the blade 20 abuts against the first limiting structure 111 to generate a pre-tightening force; the driving assembly 3 is further configured to apply a force F2 to the blade 20 blocked by the second limiting structure 112, so that the blade 20 blocked by the second limiting structure 112 applies a force T2 to the second limiting structure 112, and thus the blade 20 abuts against the second limiting structure 112 to generate the pre-tightening force.

In one particular embodiment, as shown in fig. 3, 10, 11, 12, 13, the blade 20 has a blade body 200, a blade pivot portion 201, and a blade connecting portion 202; the blade pivot portion 201 is provided on the blade main body 200; the blade pivot portion 201 is rotatably provided on the frame body 10 along the first rotation axis 20 a; the blade attachment portion 202 is provided on the blade body 200 offset from the first rotation axis 20 a; the driving member 3 is used to apply forces F1, F2 to the blade connection 202. This arrangement makes it relatively simple to generate the pretension force in the blade 20.

As shown in fig. 4 and 5, the driving assembly 3 includes a link 31 and a driving rod 32; one end of the driving lever 32 is rotatably connected to the frame body 10 along the second rotation axis 32a, and the other end of the driving lever 32 is rotatably connected to the link 31; the link 31 is rotatably connected to the blade connecting portion 202; the connection of the driving lever 32 to the frame body 10 includes a direct rotatable connection and/or an indirect rotatable connection, which will be exemplified separately hereinafter.

As shown in fig. 10, 11, 12, 13, 14, 15, the blade 20, the link 31, the drive lever 32, and the frame body 10 collectively define a planar four-link mechanism; wherein, when the blade 20 is blocked in the blade limit positions BEP1, BEP2, the drive lever 32 is in the intermediate positions DP1, DP 2; in the intermediate position DP1, the drive lever 32 of DP2 is configured to rotate about the second rotation axis 32a to drive the link to swing, thereby causing the link 31 to apply forces F1, F2 to the blade attachment portion 202. This solution allows a better robustness of the drive assembly 3 and an easy control of the magnitude of the forces F1, F2.

To prevent the force F1, F2 from being too large, as shown in fig. 14, 15, 16, 17, 18, 19, 20, the main frame 1 further includes a drive lever stopper structure 12; the driving rod limiting structure 12 is arranged on the frame main body 10; the drive lever limit structure 12 is used to block the drive lever 32 from rotation from the neutral position DP1, DP2 to the drive lever limit positions DEP1, DEP 2. The drive lever stopper 12 and the frame body 10 may be both made of a plastic material and integrally formed.

In one specific embodiment, as shown in fig. 17 and 18, the driving rod limiting structure 12 has a first limiting portion 121 and a second limiting portion 122; the first stopper portion 121 is configured to block the drive lever 32 rotated from the first intermediate position DP1 to the first drive lever limit position DEP1 in the third direction S3; the second stopper portion 122 is for blocking the drive lever 32 rotated from the second intermediate position DP2 to the second drive lever limit position DEP2 in the fourth direction S4; the third direction S3 and the fourth direction S4 are opposite to each other. This arrangement enables the drive rod 32 to be restrained in both directions of rotation.

With continued reference to fig. 17 and 18, the drive lever 32 in the first intermediate position DP1 is rotated in the third direction S3 by the first included angle α to reach a first drive lever limit position DEP 1; wherein the first angle α is in the range of 5 ° to 10 °; and/or the second intermediate position DP2 is to rotate the drive lever 32 in the fourth direction S4 by the second included angle β to reach the second drive lever extreme position DEP 2; wherein the second angle β is in the range of 5 ° to 10 °. This arrangement enables the magnitude of the forces F1, F2 to be in the appropriate range.

As shown in fig. 14 and 15, one end of the driving rod 32 is rotatably connected to the driving rod stopper 12. Since the drive lever stopper 12 is attached to the frame body 10, in this embodiment, the drive lever 32 is indirectly rotatably attached to the frame body 10 via the drive lever stopper 12. In addition, this arrangement allows for a compact construction of the active grille shutter assembly 90.

As shown in fig. 4 and 5, in another embodiment, the driving assembly 3 further comprises a driving module 30; the driving module 30 includes a base 301 and a rotating part 302; the base 301 is fixedly arranged on the frame body 10, and the rotating part 302 is rotatably arranged on the base 301; the driving lever 32 includes a main lever portion 320 and a rotation shaft portion 321, the rotation shaft portion 321 is connected to one end of the main lever portion 320, and the other end of the main lever portion 320 is rotatably connected to the connecting rod 31; the rotating shaft part 321 is connected with the rotating part 302; the rotating portion 302 is used for driving the rotating shaft portion 321 to rotate along the second rotating axis 32a, so as to drive the driving rod 32 to rotate along the second rotating axis 32 a. In this embodiment, the driving lever 32 is indirectly rotatably connected to the frame body 10 through the holder body 301 and the rotating portion 302. Furthermore, this solution also contributes to simplifying the structure of the drive assembly 3.

In a more specific embodiment, as shown in fig. 4 and 5, the rotating shaft portion 321 includes a first shaft body 3211 and a second shaft body 3212; the first shaft body 3211 and the second shaft body 3212 are disposed together with the second rotation axis 32 a; wherein, the first shaft 3211 is rotatably connected to the frame body 10, and the second shaft 3212 is connected to the rotating part 302; the rotating portion 302 is used for driving the second shaft 3212 to rotate along the second rotation axis 32a, so as to drive the driving rod 32 to rotate along the second rotation axis 32 a. This solution makes the structure of the drive assembly 3 compact. The frame body 10 may be provided with a through hole directly rotatably connected to the first shaft body 3211.

When the driving rod stopper 12 is provided on the frame body 10, as shown in fig. 14, the first shaft body 3211 may be rotatably connected to the driving rod stopper 12. This arrangement makes the drive rod stopper 12 compact.

As shown in fig. 20, the first position-limiting portion 121 of the driving rod position-limiting structure 12 has a first position-limiting surface 121a, and the second position-limiting portion 122 of the driving rod position-limiting structure 12 has a second position-limiting surface 122 a; the first limiting surface 121a is configured to be capable of fitting with the first side surface 320a of the main rod 320, so that the driving rod 32 is blocked by the first limiting part 121; the second limiting surface 122a is configured to be capable of engaging with the second side surface 320b of the main rod 320, so that the driving rod 32 is blocked by the second limiting surface 122. This arrangement makes the spacing between the driving rod spacing structure 12 and the driving rod 32 stable and simple.

More specifically, as shown in fig. 14, the first limiting surface 121a and the second limiting surface 122a define a third included angle γ. The third included angle y ranges from greater than 90 deg., and may be between 100 deg. and 110 deg..

As shown in fig. 3 and 8, the vane pivot portion 201 has a hook 201a protruding in the radial direction, and the hook 201a is used to be blocked. More specifically, the hook 201a is adapted to be blocked by the second stopper structure 112. The second position-limiting structure 112 may be a rib protruding from the frame body 10.

The movement and positional relationship between the drive lever 32 and the blade 20 will be described below with reference to fig. 17 and 18.

As shown in FIG. 17, when the vane 20 is in the first vane limit position BEP1 and no preload is applied, the actuator lever 32 is in the first intermediate position DP 1. The driving rod 32 is connected to the blade 20 through the link 31. To preload the vane 20 in the first vane limit position BEP1, the actuator lever 32 in the first intermediate position DP1 is actuated to rotate the first included angle α in the third direction S3 to reach the first actuator lever limit position DEP 1. During the rotation of the driving rod 32 by the first angle α, the blade 20 generates a pre-tightening force, and the pre-tightening force is increased.

During the rotation of the driving lever 32 by the first angle α, the point P1 on the driving lever 32 rotates to the position of the point P1 ', and the first side surface 320a rotates to the position of the surface 320a ', where the point P1 may be a point on the edge of the first side surface 320a, and the surface 320a ' coincides with the first limiting surface 121 a.

As shown in FIG. 18, when the vane 20 is in the second vane limit position BEP2 and no preload is applied, the actuator arm 32 is in the second intermediate position DP 2. The driving rod 32 is connected to the blade 20 through the link 31. To preload the vane 20 in the second vane limit position BEP2, the actuating lever 32 in the second intermediate position DP2 is driven to rotate the second included angle β in the fourth direction S4 to reach the second actuating lever limit position DEP 2. During the rotation of the driving rod 32 by the second included angle β, the blade 20 generates a pre-tightening force, and the pre-tightening force is increased.

During the rotation of the driving lever 32 by the second angle β, the point P2 on the driving lever 32 rotates to the position of the point P2 ', and the second side surface 320b rotates to the surface 320b ', wherein the point P2 may be a point on the edge of the second side surface 320b, and the surface 320b ' coincides with the second limiting surface 122 a.

As shown in fig. 18, the drive lever 32 may be configured to rotate about the second rotation axis 32a between a first intermediate position DP1 and a second intermediate position DP2 to rotate the blade 20 about the first rotation axis 20a between the first blade limit position BEP1 and the second blade limit position BEP 2.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make modifications and variations without departing from the spirit and scope of the present invention.

Claims

1. An active grille shutter assembly comprising a main frame (1) and a vane pack (2); the main frame (1) comprises a frame body (10), the frame body (10) has an air inlet (1a), the blade group (2) comprises at least one blade (20); the blade (20) is rotatably provided on the frame body (10) along a first rotation axis (20a) to adjust a flow direction of the air flow passing through the air inlet (1 a); the blade (20) is arranged to be blocked when rotating from a blade normal position (BCP) to a blade extreme position (BEP1, BEP 2);

Characterized in that the active intake grille assembly (90) further comprises a drive assembly (3), the drive assembly (3) being adapted to apply a force (F1, F2) to the vane (20) blocked in the vane extreme position (BEP1, BEP2) so that the vane (20) has a tendency to continue the rotation;

the blade (20) comprises a blade main body (200), a blade pivot part (201) and a blade connecting part (202); the blade pivot portion (201) is provided on the blade main body (200); the blade pivot portion (201) is rotatably provided on the frame body (10) along the first rotation axis (20 a); the blade attachment portion (202) is provided on the blade main body (200) offset from the first rotation axis (20 a); the driving assembly (3) is used for applying force (F1, F2) to the blade connecting part (202);

the driving assembly (3) comprises a connecting rod (31) and a driving rod (32); one end of the driving rod (32) is rotatably connected to the frame body (10) along a second rotation axis (32a), and the other end of the driving rod (32) is rotatably connected to the connecting rod (31); the connecting rod (31) is rotatably connected with the blade connecting part (202);

the blade (20), the link (31), the drive rod (32) and the frame body (10) together define a planar four-bar linkage; wherein the drive lever (32) is in a neutral position (DP1, DP2) when the blade (20) is blocked in the blade limit position (BEP1, BEP 2);

The drive lever (32) in the intermediate position (DP1, DP2) is arranged to rotate about the second axis of rotation (32a) to drive the link to oscillate, thereby causing the link (31) to exert a force (F1, F2) on the blade connection (202).

2. The active air intake grille assembly of claim 1, characterized in that the main frame (1) further comprises a blade retaining structure (11), wherein the blade retaining structure (11) is provided on the frame body (10);

the blade limiting structure (11) is used for blocking the blade (20) rotated to the blade limit position (BEP1, BEP 2); the driving assembly (3) is used for applying a force (F1, F2) to the blade (20) blocked by the blade limiting structure (11) at the blade limit position (BEP1, BEP2), so that the blade (20) applies a force (T1, T2) to the blade limiting structure (11).

3. The active air intake grille assembly of claim 1 wherein the vanes (20) are plural in number; one of the vanes (20) of two adjacent vanes (20) blocked in the vane limit position (BEP1, BEP2) is arranged to block the other vane (20).

4. The active air intake grille assembly of claim 2 wherein the vane retaining structure (11) includes a first retaining structure (111) and a second retaining structure (112);

The first position limiting structure (111) is used for blocking the blade (20) rotating from the blade normal position (BCP) along a first direction (S1) to a first blade limit position (BEP 1); the second limit structure (112) is used for blocking the blade (20) rotating from the blade normal position (BCP) along a second direction (S2) to a second blade limit position (BEP 2);

wherein the first direction (S1) and the second direction (S2) are opposite to each other.

5. The active air intake grille assembly of claim 1, characterized in that the main frame (1) further comprises a drive bar retaining structure (12); the driving rod limiting structure (12) is arranged on the frame main body (10); the driving rod limiting structure (12) is used for blocking the driving rod (32) which starts to rotate from the middle position (DP1, DP2) to be at a driving rod limiting position (DEP1, DEP 2).

6. The active air intake grille assembly of claim 5 wherein the drive bar retaining structure (12) has a first retaining portion (121) and a second retaining portion (122);

the first stopper part (121) is configured to block the drive lever (32) rotating from the first intermediate position (DP1) in the third direction (S3) to the first drive lever limit position (DEP 1); the second stopper portion (122) is adapted to block the drive lever (32) rotating in a fourth direction (S4) from a second intermediate position (DP2) to a second drive lever limit position (DEP 2);

Wherein the third direction (S3) and the fourth direction (S4) are opposite to each other.

7. The active grille shutter assembly of claim 6 wherein the actuator lever (32) in the first intermediate position (DP1) is rotated in the third direction (S3) by a first included angle (a) to reach a first actuator lever limit position (DEP 1); wherein the first angle (a) ranges from 5 ° to 10 °; and/or

-in a second said intermediate position (DP2), the actuating lever (32) is rotated in the fourth direction (S4) by a second included angle (β) to reach a second said actuating lever extreme position (DEP 2); wherein the second angle (β) ranges from 5 ° to 10 °.

8. The active grille shutter assembly of claim 6 wherein the drive rod (32) is rotatably connected at one end to the drive rod retaining structure (12).

9. The active grille shutter assembly of claim 6 wherein the drive assembly (3) further comprises a drive module (30); the driving module (30) comprises a base body (301) and a rotating part (302); the seat body (301) is fixedly arranged on the frame main body (10), and the rotating part (302) is rotatably arranged on the seat body (301);

The driving rod (32) comprises a main rod part (320) and a rotating shaft part (321), the rotating shaft part (321) is connected to one end of the main rod part (320), and the other end of the main rod part (320) is rotatably connected with the connecting rod (31);

the rotating shaft part (321) is connected with the rotating part (302); the rotating part (302) is used for driving the rotating shaft part (321) to rotate along the second rotating axis (32a), so that the driving rod (32) is driven to rotate along the second rotating axis (32 a).

10. The active grille shutter assembly of claim 9 wherein the shaft portion (321) includes a first shaft body (3211) and a second shaft body (3212); the first shaft body (3211) and the second shaft body (3212) are arranged together with the second rotation axis (32 a); wherein the first shaft body (3211) is rotatably connected to the frame body (10), and the second shaft body (3212) is connected to the rotating part (302);

the rotating part (302) is used for driving the second shaft body (3212) to rotate along the second rotating axis (32a) so as to drive the driving rod (32) to rotate along the second rotating axis (32 a).

11. The active grille shutter assembly of claim 9 wherein the first stopper portion (121) has a first stopper surface (121a) and the second stopper portion (122) has a second stopper surface (122 a);

The first limit surface (121a) is arranged to be attached to the first side surface (320a) of the main rod part (320) so that the driving rod (32) is blocked by the first limit part (121);

the second limiting surface (122a) is arranged to be capable of being attached to the second side surface (320b) of the main rod portion (320), so that the driving rod (32) is blocked by the second limiting portion (122).

12. The active grille shutter assembly of claim 11 wherein the first stop surface (121a) and the second stop surface (122a) define a third included angle (γ).

13. The active air intake grille assembly of claim 1 wherein the vane pivot portion (201) has a radially projecting hook (201a), the hook (201a) being adapted to be blocked.

14. The active grille shutter assembly of claim 6 wherein the actuator lever (32) is configured to rotate about the second axis of rotation (32a) between a first said intermediate position (DP1) and a second said intermediate position (DP2) to rotate the vane (20) about the first axis of rotation (20a) between a first said vane limit position (BEP1) and a second said vane limit position (BEP 2).

15. A vehicle front end module, characterized by comprising an active grille shutter assembly (90) of any one of claims 1 to 14.