CN113043837A

CN113043837A - Initiative air-inlet grille subassembly and vehicle front end module

Info

Publication number: CN113043837A
Application number: CN201911377015.9A
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: 2021-06-29
Anticipated expiration: 2039-12-27
Also published as: CN113043837B

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 upper blade and the lower blade are arranged in a first included angle, and the upper blade and the lower blade synchronously rotate, so that a second included angle is formed between the first direction and the second direction, and the first airflow and the second airflow can be ejected from the active air inlet grille component in a second included angle. Compared with the situation that the first air flow and the second air flow are kept parallel in the comparative example, the first air flow and the second air flow ejected at the second included angle enable the active air inlet grille component to have higher air utilization rate. In addition, because the upper blade and the lower blade rotate synchronously, the control process of the active air inlet grille component is simpler, and the upper blade and the lower blade do not need to be controlled respectively. 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 higher air utilization rate.

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.

In the prior art, an active grille shutter includes a main frame, a driving mechanism, an upper blade group and a lower blade group. The main frame in the installation state has an upper air inlet and a lower air inlet by taking a vehicle as a reference, wherein the upper blade group comprises one or more upper blades, the upper blades are rotatably arranged at the upper air inlet, a driving mechanism is used for driving the upper blades to rotate so as to open or close the upper air inlet, and the upper blades are also used for guiding the airflow passing through the upper air inlet;

the lower blade group comprises one or more lower blades, the lower blades are rotatably arranged at the lower air inlet, the driving mechanism is used for driving the lower blades to rotate so as to open or close the lower air inlet, and the lower blades are also used for guiding the airflow passing through the lower air inlet.

The active air inlet grille has the defect of low air utilization rate.

Disclosure of Invention

The invention aims to provide an active air inlet grille component which has the advantage of high air utilization rate.

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

The active air inlet grille component comprises a main frame, an upper blade group and a lower blade group; wherein the main frame is provided with at least an upper air inlet and a lower air inlet, the upper blade group comprises at least one upper blade, and the lower blade group comprises at least one lower blade; the upper blade and the lower blade are rotatably arranged on the main frame respectively;

wherein the upper blade is configured to direct a first airflow through the upper inlet in a first direction and the lower blade is configured to direct a second airflow through the lower inlet in a second direction; the first direction and the second direction rotate following rotation of the upper blade and the lower blade, respectively;

the active grille shutter assembly further comprises a drive assembly mounted on the main frame; the driving assembly is used for driving the upper blade and the lower blade to synchronously rotate;

the upper blade and the lower blade are arranged in a first included angle, so that a second included angle is formed between the first direction and the second direction; the first included angle and the second included angle are equal in size.

In one embodiment, the lower blade is disposed to be inclined with respect to the upper blade toward a direction in which the first and second air flows are brought close to each other to form the first angle.

In one embodiment, the first included angle ranges from greater than 0 ° to less than or equal to 15 °.

In one embodiment, the upper rotational axes of at least two of the upper blades are arranged in parallel to define a first plane; the lower rotating axes of at least two lower blades are arranged in parallel to define a second plane; wherein the first plane and the second plane form the first included angle.

In one embodiment, the upper blade includes an upper blade main body, an upper pivot portion, and an upper connecting portion, the upper pivot portion and the upper connecting portion being provided on the upper blade main body, respectively; the upper pivot portion has an upper rotation axis and is rotatably provided on the main frame along the upper rotation axis, the upper connecting portion being provided to be offset from the upper rotation axis;

the lower blade comprises a lower blade main body, a lower pivot part and a lower connecting part, wherein the lower pivot part and the lower connecting part are respectively arranged on the lower blade main body; the lower pivot portion has a lower rotation axis and is rotatably provided on the main frame along the lower rotation axis, the lower connecting portion being provided to be offset from the lower rotation axis;

the driving assembly is used for driving the upper connecting portion and the lower connecting portion to synchronously rotate around the upper rotating axis and the lower rotating axis respectively, so that the upper blade and the lower blade are driven to synchronously rotate.

In one embodiment, the drive assembly includes a link; one end of the connecting rod is rotatably connected with the upper connecting part, and the other end of the connecting rod is rotatably connected with the lower connecting part; the links, the upper blade, the lower blade, and the main frame form a mainly planar four-bar linkage.

In one embodiment, the drive assembly further comprises a drive rod; the connecting rod is provided with an upper rod part, a main rod part and a lower rod part;

one end of the driving rod is rotatably connected to the main frame, the other end of the driving rod is rotatably connected to the main rod part, the upper rod part is rotatably connected to the upper connecting part, and the lower rod part is rotatably connected to the lower connecting part;

wherein the drive bar, the main frame, the upper blade, and the link collectively define a first planar four-bar linkage; the drive rod, the main frame, the lower blade and the connecting rod together define a second planar four-bar linkage;

the driving rod is used for driving the connecting rod to swing, so that the connecting rod drives the upper blade and the lower blade to synchronously rotate.

In one embodiment, the driving assembly further comprises a driving module, wherein the driving module comprises a base body and a rotating part; the seat body is fixedly arranged on the main frame, and the rotating part is rotatably arranged on the seat body; one end of the driving rod is fixedly connected with the rotating part, and the rotating part is used for driving the driving rod to rotate.

In one embodiment, the upper blade set comprises an upper left blade set and an upper right blade set; the upper left blade group comprises at least one upper blade, and the upper right blade group comprises at least one upper blade;

the upper connecting part of the upper blade of the upper left blade group is rotatably connected to one side of the upper rod part; the upper connecting part of the upper blade of the upper right blade group is rotatably connected to the other side of the upper rod part.

In one embodiment, the lower blade set comprises a lower left blade set and a lower right blade set; the lower left blade group comprises at least one lower blade, and the lower right blade group comprises at least one lower blade;

the lower connecting part of the lower blade of the lower left blade group is rotatably connected to one side of the lower rod part; the lower connecting part of the lower blade of the lower right blade group is rotatably connected to the other side of the lower rod part.

To achieve the object, a vehicle front end module comprising a radiator, said vehicle front end module further comprising an active grille shutter assembly as described above; the radiator is disposed on a downstream side of an active grille shutter assembly for directing an airflow passing through the active grille shutter assembly toward the radiator in a flow direction of the airflow.

The positive progress effects of the invention are as follows: according to the active air inlet grille component provided by the invention, the upper blade and the lower blade are arranged in a first included angle, and the upper blade and the lower blade synchronously rotate, so that a second included angle is formed between the first direction and the second direction, and the first airflow and the second airflow can be ejected from the active air inlet grille component in a second included angle. Compared with the case that the first air flow and the second air flow are emitted from the active grille shutter assembly in parallel in the comparative example, the first air flow and the second air flow emitted at the second included angle in the embodiment of the invention enable the active grille shutter assembly to have higher air utilization rate. In addition, because the upper blade and the lower blade rotate synchronously, the control process of the active air inlet grille component is simpler, and the upper blade and the lower blade do not need to be controlled respectively.

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 higher air utilization rate.

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. 1a is a schematic illustration of a front end module of a vehicle according to a comparative example, wherein the active grille shutter assembly is in a closed position;

FIG. 1b is a schematic illustration of a front end module of a vehicle according to a comparative example, wherein the active grille shutter assembly is in a partially open position;

FIG. 1c is a schematic illustration of a front end module of a vehicle according to a comparative example, wherein the active grille shutter assembly is in a fully open position;

FIG. 2a is a schematic view of a front end module of a vehicle with an active grille shutter assembly in a closed position in accordance with an embodiment of the present invention;

FIG. 2b is a schematic view of a front end module of a vehicle with an active grille shutter assembly in a partially open position in accordance with an embodiment of the present invention;

FIG. 2c is a schematic view of a front end module of a vehicle with the active grille shutter assembly in a fully open position in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of an active grille shutter assembly in accordance with an embodiment of the present invention, showing a front face of the active grille shutter assembly in a closed position;

FIG. 4 is a schematic view of an active grille shutter assembly in accordance with an embodiment of the present invention, showing the rear face of the active grille shutter assembly in a closed position;

FIG. 5 is a front view of an active grille shutter assembly in accordance with an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;

FIG. 7 is a schematic view of the active grille shutter assembly of FIG. 6 taken along the direction C-C;

FIG. 8 is an exploded view of the active grille shutter assembly of FIG. 7 shown in cross-section;

FIG. 9 is a schematic view of the upper and lower vane sets of FIG. 7 taken in cross section, showing a first included angle;

FIG. 10 is a schematic view of the drive module and drive bar of FIG. 7, shown in section, with the drive bar mounted on the drive module;

FIG. 11 is a schematic view of the drive module and drive bar of FIG. 7, shown in section, with the drive bar separated from the drive module;

FIG. 12 is a schematic view of the link of FIG. 7, shown in cross-section, showing a front face of the link;

FIG. 13 is a schematic view of the link of FIG. 7, shown cut away, showing the back of the link;

FIG. 14 is an enlarged view at H in FIG. 13;

FIG. 15 is a schematic view of the active grille shutter assembly of FIG. 6 taken in the direction C-C showing the rotational connection of the link to the upper and lower vane sets;

FIG. 16 is a cross-sectional view taken in the direction E-E of FIG. 5;

FIG. 17 is a sectional view taken in the direction G-G of FIG. 5;

FIG. 18 is a schematic view of an active air intake grille assembly showing a front face of the active air intake grille assembly in a partially open position in accordance with an embodiment of the present invention;

FIG. 19 is a schematic view of an active grille shutter assembly in accordance with an embodiment of the invention, showing the front of the active grille shutter assembly in a fully open position.

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.

In the description, the terms of orientation of "upper", "lower", "left" and "right" used are defined in the relevant orientation in the drawings for the purpose of convenience of description, and do not limit the scope of the invention as actually claimed.

It should be noted that fig. 1a to 19 are only examples, are not drawn to scale, and should not be taken as limiting the scope of the invention.

Fig. 1a to 1c show a comparative example of a vehicle front end module. In this comparative example, the vehicle front end module 900 includes a radiator 91 and an active grille shutter assembly 90. The active grille shutter assembly 90 includes a drive assembly (not shown in fig. 1a to 1 c), a main frame 1, an upper blade group 2 and a lower blade group 3; the main frame 1 at least has an upper air inlet 1a and a lower air inlet 1b, the upper blade group 2 comprises at least one upper blade 20, and the lower blade group 3 comprises at least one lower blade 30; the upper blade 20 and the lower blade 30 are rotatably provided on the main frame 1, respectively. The upper blade 20 has an upper axis of rotation 20a and the lower blade 30 has a lower axis of rotation 30 a.

The radiator 91 is disposed on the downstream side of the active intake grille assembly 90 in the flow direction of the airflows F1, F2 passing through the active intake grille assembly 90, wherein the active intake grille assembly 90 is configured to direct the airflows F1, F2 toward the radiator 91.

With continued reference to fig. 1 a-1 c, the upper blade 20 is configured to direct a first airflow F1 through the upper inlet 1a to flow in a first direction D1, and the lower blade 30 is configured to direct a second airflow F2 through the lower inlet 1b to flow in a second direction D2; the first direction D1 and the second direction D2 rotate following the rotation of the upper blade 20 and the lower blade 30, respectively.

When the first air flow F1 passes through the upper inlet port 1a, it comes into contact with the upper blade 20, and during this contact, the flow direction of the first air flow F1 is guided by the upper blade 20 to flow in the first direction D1 as it leaves the upper blade 20. The first direction D1 is directly related to the angle of the upper blade 20, and when the upper blade 20 rotates about the upper rotation axis 20a, the first direction D1 also rotates about the upper rotation axis 20 a.

When the second air flow F2 passes through the lower air inlet 1b, it comes into contact with the lower blade 30, and during this contact, the flow direction of the second air flow F2 is guided by the lower blade 30 to flow in the second direction D2 while leaving the lower blade 30. The second direction D2 is directly related to the angle of the lower blade 30, and when the lower blade 30 rotates about the lower rotation axis 30a, the second direction D2 also rotates about the lower rotation axis 30 a.

With continued reference to fig. 1a to 1c, in this comparative example, the upper blade 20 and the lower blade 30 rotate synchronously under the driving of the driving assembly (not shown in fig. 1a to 1 c), and since the upper blade 20 and the lower blade 30 are arranged in parallel, the first direction D1 is always parallel to the second direction D2 during the synchronous rotation of the upper blade 20 and the lower blade 30, which causes the problem in fig. 1c that when the radiator 91 is placed at a high position, the second air flow F2 emitted from the lower air inlet 1b along the second direction D2 easily passes under the radiator 91, resulting in a low air utilization rate of the active grille assembly 90 as a whole.

To solve the problem of low air utilization, the present invention provides the following embodiments. In the following examples, the same reference numerals are given to the same components as those in comparative examples.

As shown in fig. 2a, 2b, 2c, 3, 4, 5, 6, 7, 8, the active grille shutter assembly 90 further includes a driving assembly 4, the driving assembly 4 being mounted on the main frame 1; the driving assembly 4 is used for driving the upper blade 20 and the lower blade 30 to synchronously rotate; wherein, the upper blade 20 and the lower blade 30 form a first included angle α, so that a second included angle β is formed between the first direction D1 and the second direction D2; the first included angle alpha and the second included angle beta are equal in size.

Because the upper blade 20 and the lower blade 30 form the first included angle α, and the upper blade 20 and the lower blade 30 rotate synchronously, the first direction D1 and the second direction D2 form the second included angle β, so that the first airflow F1 and the second airflow F2 can be ejected from the active grille shutter assembly 90 with the second included angle β. The first air flow F1 and the second air flow F2 emitted at the second included angle β in the embodiment of the present invention enable the active grille shutter 90 to have a higher air utilization ratio than the case where the first air flow F1 and the second air flow F2 are emitted from the active grille shutter in parallel in the comparative example. In addition, since the upper blade 20 and the lower blade 30 rotate synchronously, the control process of the active grille shutter assembly 90 is relatively simple, and the upper blade 20 and the lower blade 30 do not need to be controlled separately.

In the above embodiment, the first included angle α may be formed by a plane defined by the upper blade 20 and a plane defined by the lower blade 30. This solution is applicable in the case where the number of upper blades 20 and/or the number of lower blades 30 is one.

As shown in fig. 2a, 2b, 2c, the number of upper blades 20 and/or the number of lower blades 30 may also be multiple. The upper rotation axes 20a of the at least two upper blades 20 are arranged in parallel to define a first plane a; the lower rotation axes 30a of the at least two lower blades 30 are arranged in parallel to define a second plane B; the first plane A and the second plane B form a first included angle alpha.

In a more specific embodiment, the upper rotational axes 20a of all of the upper blades 20 are disposed in parallel and coplanar, and the lower rotational axes 30a of all of the lower blades 30 are disposed in parallel and coplanar. In this embodiment, all upper blades 20 rotate synchronously, and all lower blades 30 also rotate synchronously.

With continued reference to fig. 2a, 2b, 2c, in one embodiment, the lower blade 30 is disposed to be inclined relative to the upper blade 20 in a direction that causes the first and second air flows F1, F2 to approach each other to form a first included angle α. This arrangement allows the first and second air flows F1 and F2 to approach each other after passing through the active grille shutter assembly 90, which helps to improve the air utilization efficiency of the active grille shutter assembly 90 when the dimension in the height direction of the radiator 91 is small or the position where it is disposed is high.

Specifically, the first angle α ranges from greater than 0 ° to less than or equal to 15 °. When the first included angle α exceeds 15 °, the manufacturing process is more difficult.

The detailed structure of the active grille shutter assembly 90 will be described with reference to fig. 3 to 19.

As shown in fig. 8, 9, 15, 16, 17, the upper blade 20 includes an upper blade main body 201, an upper pivot portion 203, and an upper connecting portion 202, the upper pivot portion 203 and the upper connecting portion 202 being provided on the upper blade main body 201, respectively; the upper pivot portion 203 has an upper rotation axis 20a, and is rotatably provided on the main frame 1 along the upper rotation axis 20a, and the upper connecting portion 202 is provided to be offset from the upper rotation axis 20 a; the lower blade 30 includes a lower blade main body 301, a lower pivot portion 303, and a lower connecting portion 302, the lower pivot portion 303 and the lower connecting portion 302 being provided on the lower blade main body 301, respectively; the lower pivot portion 303 has a lower rotation axis 30a, and is rotatably provided on the main frame 1 along the lower rotation axis 30a, and the lower connecting portion 302 is provided offset from the lower rotation axis 30 a; the driving assembly 4 is used for driving the upper connecting portion 202 and the lower connecting portion 302 to rotate synchronously around the upper rotating axis 20a and the lower rotating axis 30a, respectively, so as to drive the upper blade 20 and the lower blade 30 to rotate synchronously. This arrangement enables the upper and

lower blades

20, 30 to be driven robustly and synchronously.

In the above embodiment, the main frame 1 is provided with a plurality of through holes for respectively receiving the upper pivot portion 203 and the lower pivot portion 303. The upper pivot portion 203 and the lower pivot portion 303 are respectively coupled to these through holes in a rotatable shaft hole.

As shown in fig. 8, 10, 11, 12, 13, 14, 15, 16, 17, in one embodiment, the drive assembly 4 includes a link 41; one end of the connecting rod 41 is rotatably connected with the upper connecting part 202, and the other end of the connecting rod 41 is rotatably connected with the lower connecting part 302; the links 41, the upper blade 20, the lower blade 30 and the main frame 1 form a mainly planar four-bar linkage. The predominantly planar four-bar linkage ensures that the upper leaf 20 and the lower leaf 30 can rotate synchronously. The connecting rod 41 can drive the upper blade 20 to rotate synchronously with the lower blade 30.

In a more specific embodiment, the drive assembly 4 further includes a drive rod 42; the link 41 has an upper lever portion 411, a main lever portion 410, and a lower lever portion 412; one end of the driving rod 42 is rotatably connected to the main frame 1, the other end of the driving rod 42 is rotatably connected to the main rod portion 410, the upper rod portion 411 is rotatably connected to the upper connecting portion 202, and the lower rod portion 412 is rotatably connected to the lower connecting portion 302; wherein the driving rod 42, the main frame 1, the upper blade 20 and the connecting rod 41 together define a first planar four-bar linkage; the driving rod 42, the main frame 1, the lower blade 30 and the connecting rod 41 together define a second planar four-bar linkage; the driving rod 42 is used for driving the connecting rod 41 to swing, so that the connecting rod 41 drives the upper blade 20 and the lower blade 30 to synchronously rotate. This arrangement enables the simultaneous rotation of the upper and

lower blades

20, 30 to be achieved relatively simply.

In the above embodiment, one end of the driving rod 42 may be directly or indirectly rotatably connected to the main frame 1. For the direct-connection embodiment, the main frame 1 may be provided with a through hole (not shown) rotatably engaged with the driving lever 42. For the indirectly connected embodiments, it will be explained in detail later.

As shown in fig. 13 and 14, the main lever portion 410 has a rotation shaft portion 410 a. The other end of the driving lever 42 is pivotally connected to the rotating shaft portion 410 a. As shown in fig. 8, 12, and 13, the upper lever portion 411 has an upper pivot sleeve 411a, and the upper connecting portion 202 is rotatably disposed in the upper pivot sleeve 411 a. The lower rod portion 412 has a lower pivot sleeve 412a, and the lower connecting portion 302 is rotatably disposed within the lower pivot sleeve 412 a. The number of upper pivot sleeves 411a and lower pivot sleeves 412a may vary depending on the number of upper vanes 20 and lower vanes 30. In one particular embodiment, the central axes of the at least two upper pivot sleeves 411a are disposed parallel and coplanar, and the central axes of the at least two lower pivot sleeves 412a are disposed parallel and coplanar. The angle between the plane defined by the central axis of the upper plurality of pivot sleeves 411a and the plane defined by the central axis of the lower plurality of pivot sleeves 412a is equal to the first angle alpha. Accordingly, for ease of manufacture, the angle between upper rod portion 411 and lower rod portion 412 is also equal to first angle α.

As shown in fig. 8, 10 and 11, the driving assembly 4 further includes a driving module 40, and the driving module 40 includes a seat 400 and a rotating part 401; the base body 400 is fixedly arranged on the main frame 1, and the rotating part 401 is rotatably arranged on the base body 400; one end of the driving rod 42 is fixedly connected with the rotating part 401, and the rotating part 401 is used for driving the driving rod 42 to rotate. In this embodiment, the driving lever 42 is indirectly rotatably connected to the main frame 1 through the rotating portion 401 and the housing 400. More specifically, the drive module 40 is a motor module.

As shown in fig. 3, 4, and 5, the upper blade group 2 includes an upper left blade group 2a and an upper right blade group 2 b; the upper left blade group 2a comprises at least one upper blade 20, and the upper right blade group 2b comprises at least one upper blade 20; the upper connecting portion 202 of the upper blade 20 of the upper left blade group 2a is rotatably connected to one side of the upper rod portion 411; the upper connecting portion 202 of the upper blade 20 of the upper right blade group 2b is rotatably connected to the other side of the upper rod portion 411. With continued reference to fig. 3, 4, 5, the lower blade group 3 includes a lower left blade group 3a and a lower right blade group 3 b; the lower left blade group 3a includes at least one lower blade 30, and the lower right blade group 3b includes at least one lower blade 30; the lower connecting portion 302 of the lower blade 30 of the lower left blade group 3a is rotatably connected to one side of the lower rod portion 412; the lower connecting portion 302 of the lower blade 30 of the lower right blade group 3b is rotatably connected to the other side of the lower rod portion 412. This arrangement allows the active grille shutter assembly 90 to be compact.

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 air intake grille component comprises a main frame (1), an upper blade group (2) and a lower blade group (3); wherein the main frame (1) has at least an upper inlet (1a) and a lower inlet (1b), the upper blade group (2) comprises at least one upper blade (20), and the lower blade group (3) comprises at least one lower blade (30); the upper blade (20) and the lower blade (30) are rotatably arranged on the main frame (1) respectively;

wherein the upper blade (20) is adapted to direct a first air flow (F1) through the upper inlet (1a) in a first direction (D1), and the lower blade (30) is adapted to direct a second air flow (F2) through the lower inlet (1b) in a second direction (D2); the first direction (D1) and the second direction (D2) rotate following the rotation of the upper blade (20) and the lower blade (30), respectively;

characterized in that the active grille shutter assembly (90) further comprises a drive assembly (4), the drive assembly (4) being mounted on the main frame (1); the driving assembly (4) is used for driving the upper blade (20) and the lower blade (30) to synchronously rotate;

wherein the upper blade (20) is arranged at a first angle (a) to the lower blade (30) such that the first direction (D1) forms a second angle (β) to the second direction (D2); the first included angle (alpha) and the second included angle (beta) are equal in size.

2. The active air intake grille assembly of claim 1, characterized in that the lower blade (30) is disposed inclined with respect to the upper blade (20) in a direction that brings the first air flow (F1) and the second air flow (F2) close to each other to form the first angle (a).

3. The active air intake grille assembly of claim 1, wherein the first included angle (α) ranges from greater than 0 ° to less than or equal to 15 °.

4. The active air intake grille assembly of claim 1 wherein the upper rotational axes (20a) of at least two of the upper vanes (20) are arranged in parallel to define a first plane (a); the lower rotation axes (30a) of at least two of said lower blades (30) being arranged in parallel so as to define a second plane (B);

wherein the first plane (A) and the second plane (B) form the first angle (a).

5. The active air intake grille assembly of claim 1 wherein,

the upper blade (20) comprises an upper blade main body (201), an upper pivot portion (203) and an upper connecting portion (202), wherein the upper pivot portion (203) and the upper connecting portion (202) are respectively arranged on the upper blade main body (201); the upper pivot portion (203) has an upper rotation axis (20a) and is rotatably provided on the main frame (1) along the upper rotation axis (20a), the upper connecting portion (202) being provided to be offset from the upper rotation axis (20 a);

the lower blade (30) comprises a lower blade main body (301), a lower pivot portion (303) and a lower connecting portion (302), the lower pivot portion (303) and the lower connecting portion (302) being respectively provided on the lower blade main body (301); the lower pivot portion (303) has a lower rotation axis (30a) and is rotatably provided on the main frame (1) along the lower rotation axis (30a), the lower connecting portion (302) being provided offset from the lower rotation axis (30 a);

the driving assembly (4) is used for driving the upper connecting part (202) and the lower connecting part (302) to synchronously rotate around the upper rotating axis (20a) and the lower rotating axis (30a) respectively, so as to drive the upper blade (20) and the lower blade (30) to synchronously rotate.

6. The active air intake grille assembly of claim 5, characterized in that the drive assembly (4) comprises a link (41); one end of the connecting rod (41) is rotatably connected with the upper connecting part (202), and the other end of the connecting rod (41) is rotatably connected with the lower connecting part (302); the link (41), the upper blade (20), the lower blade (30) and the main frame (1) form a mainly planar four-bar linkage.

7. The active grille shutter assembly of claim 6 wherein the drive assembly (4) further includes a drive rod (42); the link (41) has an upper lever portion (411), a main lever portion (410), and a lower lever portion (412);

one end of the driving rod (42) is rotatably connected to the main frame (1), the other end of the driving rod (42) is rotatably connected to the main rod part (410), the upper rod part (411) is rotatably connected to the upper connecting part (202), and the lower rod part (412) is rotatably connected to the lower connecting part (302);

wherein the drive rod (42), the main frame (1), the upper blade (20) and the link (41) together define a first planar four-bar linkage; the drive rod (42), the main frame (1), the lower blade (30) and the link (41) together define a second planar four-bar linkage;

the driving rod (42) is used for driving the connecting rod (41) to swing, so that the connecting rod (41) drives the upper blade (20) and the lower blade (30) to synchronously rotate.

8. The active air intake grille assembly of claim 7, wherein the drive assembly (4) further comprises a drive module (40), the drive module (40) comprising a base (400) and a rotating portion (401); the seat body (400) is fixedly arranged on the main frame (1), and the rotating part (401) is rotatably arranged on the seat body (400); one end of the driving rod (42) is fixedly connected with the rotating part (401), and the rotating part (401) is used for driving the driving rod (42) to rotate.

9. The active air intake grille assembly of claim 7 wherein the upper vane set (2) comprises an upper left vane set (2a) and an upper right vane set (2 b); the upper left blade group (2a) comprises at least one upper blade (20), and the upper right blade group (2b) comprises at least one upper blade (20);

the upper connecting part (202) of the upper blade (20) of the upper left blade group (2a) is rotatably connected to one side of the upper rod part (411); the upper connecting part (202) of the upper blade (20) of the upper right blade group (2b) is rotatably connected to the other side of the upper rod part (411); and/or

The lower blade group (3) comprises a lower left blade group (3a) and a lower right blade group (3 b); the lower left blade group (3a) comprises at least one of the lower blades (30), the lower right blade group (3b) comprises at least one of the lower blades (30);

the lower connecting part (302) of the lower blade (30) of the lower left blade group (3a) is rotatably connected to one side of the lower rod part (412); the lower connecting part (302) of the lower blade (30) of the lower right blade group (3b) is rotatably connected to the other side of the lower rod part (412).

10. A vehicle front end module comprising a radiator (91), characterized in that the vehicle front end module (900) further comprises an active grille shutter assembly (90) according to any one of claims 1 to 9;

the radiator (91) is arranged on a downstream side of the active grille shutter assembly (90) in a flow direction of an air flow (F1, F2) passing through the active grille shutter assembly (90), wherein the active grille shutter assembly (90) is adapted to direct the air flow (F1, F2) towards the radiator (91).