High-strength active air-inlet grille structure

Abstract

The invention discloses a high-strength active air inlet grille structure which comprises a grille body and a cooling module air deflector body, and the grille body is mounted at the lower end of the cooling module air deflector body; reinforcing ribs are arranged on the periphery of the grille body along the peripheral side, a plurality of rhombus ribs and rectangular crossed ribs are arranged on the upper side and the lower side of the grille body respectively, a plurality of third reinforcing ribs are arranged in the middle of the upper side of the grille body, and rectangular reinforcing structures are arranged at the two ends of the upper side of the grille body respectively. Reinforcing ribs are arranged in the rectangular reinforcing structure. Through the structural design of the reinforcing ribs on the peripheral side of the grille body, the rhombic ribs, the rectangular crossed ribs and the third reinforcing ribs, the overall rigidity of the active air-inlet grille is improved, and the active air-inlet grille has good practicability.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile air intake grilles, and in particular relates to a high-strength active air intake grille structure. Background Art

[0002] Active Grille Shutter (AGS) is a device installed between the front grille and the cooling module of a car. It can automatically adjust the opening of the active grille and control the amount of cooling airflow entering the engine compartment according to the driving status of the car (such as: engine intake temperature, water temperature and ambient temperature signals). The active grille of a car can effectively reduce air resistance and increase the heating rate of the engine. However, the following factors need to be considered when processing and designing the active grille: ① Since the active air intake grille is located in the front cabin of the car, it is necessary to avoid the resonance frequency generated by the engine idling, which is particularly critical for the design of the active air intake grille structure and its accessories; ② The blades of the active air intake grille need to withstand a certain amount of wind load. For example, when the car wades through water and the grille blades are submerged, the blades need to maintain a certain degree of rigidity to avoid deformation due to insufficient rigidity, which may cause the grille to leak. ③ When the car encounters an emergency and needs to brake suddenly, the overall structure of the active air intake grille cannot have local cracks or even breakage, causing the grille to fail and affecting the life safety of the driver and passengers.

[0003] To sum up, an excellent automotive active air intake grille needs to meet the overall first-order natural frequency, the overall rigidity and the blades need to meet a certain rigidity, and the overall structure must also have the ability to resist mechanical impact under a certain acceleration. Summary of the invention

[0004] The purpose of the present invention is to provide a high-strength active air intake grille structure, aiming to improve the use strength of the active air intake grille of an automobile and improve the durability of the active air intake grille.

[0005] The present invention is mainly achieved through the following technical solutions: A high-strength active air intake grille structure comprises a grille body and a cooling module air guide plate body, wherein the grille body is installed at the lower end of the cooling module air guide plate body; reinforcing ribs are arranged along the circumferential side of the outer periphery of the grille body, a plurality of diamond ribs and rectangular cross ribs are arranged on the upper and lower sides of the grille body respectively, a plurality of third reinforcing ribs are arranged in the middle of the upper side of the grille body, and rectangular reinforcing structures are arranged at both ends of the upper side of the grille body respectively, and reinforcing ribs are arranged inside the rectangular reinforcing structures.

[0006] In order to better implement the present invention, further, the top and both sides of the grille body are respectively provided with a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively connected to the cooling module air guide plate body through a first snap-on connecting hole and a second snap-on connecting hole.

[0007] In order to better implement the present invention, further, a U-shaped mounting frame is arranged on the outer side of the lower part of the grille body, and both sides of the mounting frame are respectively connected to the second connecting part, and the lower ends of the mounting frame and the cooling module air guide plate body are respectively provided with a plurality of screw holes distributed in a U shape.

[0008] In order to better implement the present invention, further, a first reinforcing rib and a second reinforcing rib are respectively provided between the second connecting portion and the mounting frame and at the mounting end of the mounting frame.

[0009] In order to better implement the present invention, further, a fourth reinforcing rib is provided between the inner bottom of the grille body and the mounting frame, and a fifth reinforcing rib and a sixth reinforcing rib are provided between the inner ends of the grille body and the mounting frame respectively.

[0010] In order to better implement the present invention, further, a plurality of seventh reinforcing ribs are respectively arranged on the left and right sides of the cooling module air guide plate body, and local reinforcing structures are respectively arranged between the left and right sides of the cooling module air guide plate body and the screw holes on the same side.

[0011] In order to better implement the present invention, further, the thickness of the diamond ribs and the rectangular cross ribs is 2.0 mm respectively, and the thickness of the first reinforcing ribs, the second reinforcing ribs, the third reinforcing ribs and the reinforcing ribs inside the rectangular reinforcing structure is 2.5 mm respectively.

[0012] In order to better implement the present invention, further, a front windshield is installed on the front side of the grille body, and the front windshield includes a mounting frame and windshield plates located at both ends of the mounting frame. The upper and lower sides of the grille body are respectively provided with snap-in holes connected to the mounting frame along the length direction.

[0013] In order to better realize the present invention, further, an active blade and a plurality of driven blades located on the upper and lower sides of the active blade are rotatably arranged in the middle cavity of the grille body, and the active blade is respectively connected to the plurality of driven blades on the upper and lower sides through connecting rods; two mounting beams are arranged in the middle of the middle cavity, and the mounting beams are rotatably connected to the active blade and the driven blade respectively.

[0014] In order to better realize the present invention, further, the main material thickness of the active blade and the driven blade gradually changes from 4.0 mm to 2.0 mm from the center of the axis to the upper and lower sides, and the inner sides of the active blade and the driven blade are respectively provided with a cross-shaped rib.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention improves the overall rigidity of the active air intake grille through the structural design of the reinforcing ribs on the periphery of the grille body and the diamond ribs, rectangular cross ribs and third reinforcing ribs; preferably, the present invention improves the mechanical strength of the grille body as a whole through the first to sixth reinforcing ribs and the rectangular reinforcing structure of the grille body; and further combines the seventh reinforcing rib and the local reinforcing structure arranged on the cooling module air guide plate body, thereby effectively improving the use strength and impact resistance of the overall structure, and can effectively resist the mechanical impact of 50g acceleration.

[0016] (2) The present invention improves the installation strength of the active blades and the driven blades through the internal installation beam. Secondly, the active blades and the driven blades are arranged with cross-shaped ribs, and the length of the pins is reasonably designed, which improves the overall rigidity of the blades, and the performance of anti-falling, wind load resistance and water impact resistance. The present invention can improve the overall first-order natural frequency through the diamond ribs arranged on the upper side of the grille body, the rectangular cross ribs arranged on the lower side, and the structure in which the grille body is connected to the cooling module air guide plate body through the first buckle connection hole and the second buckle connection hole, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the high-strength active air intake grille structure of the present invention; Figure 2 It is a rear view of the high-strength active air intake grille structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the grille body; Figure 4 for Figure 3 A partial enlarged view of the middle A; Figure 5 It is a schematic diagram of the structure of the rectangular cross ribs on the lower side of the front of the grille body; Figure 6 is a schematic diagram of the back structure of the grille body; Figure 7 is a schematic diagram of the structure of the active blade; Figure 8 It is a structural schematic diagram of the cooling module air guide plate body.

[0018] Among them: 1- grille body, 2- active blades, 3- driven blades, 4- cooling module air guide plate body, 5- front wind shield, 6- connecting rod, 7- first buckle connection hole, 8- screw hole, 9- diamond rib, 10- first reinforcing rib, 11- second reinforcing rib, 12- second buckle connection hole, 13- snap hole, 14- third reinforcing rib, 15- rectangular cross rib, 16- rectangular reinforcement structure, 17- M-shaped rib, 18- first connection hole, 19- latch, 20- second connection hole, 21- fourth reinforcing rib, 22- fifth reinforcing rib, 23- sixth reinforcing rib, 24- seventh reinforcing rib, 25- local reinforcement structure. DETAILED DESCRIPTION

[0019] Embodiment 1: A high-strength active air intake grille structure, such as Figure 1 and Figure 2 As shown, it includes a front windshield 5, a grille body 1 and a cooling module air guide plate body 4; the grille body 1 is installed at the lower end of the cooling module air guide plate body 4, and the front windshield 5 is arranged on the front side of the grille body 1. Preferably, the material of the grille body 1 is polypropylene with 30% long glass fiber added (i.e. PP+LGF30), and the main material thickness is 2.5mm.

[0020] Preferably, if Figure 3-Figure 5 As shown, reinforcing ribs are arranged along the circumferential side of the outer periphery of the grille body 1, a plurality of diamond ribs 9 and rectangular cross ribs 15 are respectively arranged on the upper and lower sides of the grille body 1, a plurality of third reinforcing ribs 14 are arranged in the middle of the upper side of the grille body 1, and rectangular reinforcing structures 16 are respectively arranged at both ends of the upper side of the grille body 1, and reinforcing ribs are arranged inside the rectangular reinforcing structures 16.

[0021] Preferably, the upper and lower sides of the front side of the grille body 1 are respectively provided with a plurality of snap-in holes 13 corresponding to the mounting frame of the front windshield 5. The top and both sides of the grille body 1 are respectively connected to the cooling module air guide plate body 4 through the first snap-in connection hole 7 and the second snap-in connection hole 12. Furthermore, the outer peripheral side of the grille body 1 and the lower end of the cooling module air guide plate body 4 are respectively provided with a plurality of screw holes 8 distributed in a U shape.

[0022] Preferably, if Figure 1 and Figure 3As shown, the top and both sides of the grille body 1 are respectively provided with a first connection portion and a second connection portion, and the first connection portion and the second connection portion are respectively connected to the cooling module air guide plate body 4 through a first buckle connection hole 7 and a second buckle connection hole 12. Further, a U-shaped mounting frame is provided on the outer side of the lower part of the grille body 1, and both sides of the mounting frame are respectively connected to the second connection portion, and the lower ends of the mounting frame and the cooling module air guide plate body 4 are respectively provided with a plurality of screw holes 8 distributed in a U shape.

[0023] Preferably, if Figure 3 and Figure 6 As shown, the first reinforcing rib 10 and the second reinforcing rib 11 are respectively arranged between the second connecting portion and the mounting frame and at the mounting end of the mounting frame. The fourth reinforcing rib 21 is arranged between the inner bottom of the grille body 1 and the mounting frame, and the fifth reinforcing rib 22 and the sixth reinforcing rib 23 are respectively arranged between the inner ends of the grille body 1 and the mounting frame. Figure 8 As shown, a plurality of seventh reinforcing ribs 24 are respectively provided on the left and right sides of the cooling module air guide plate body 4, and local reinforcing structures 25 are respectively provided between the left and right sides of the cooling module air guide plate body 4 and the screw holes 8 on the same side.

[0024] Preferably, if Figure 1-Figure 3 and Figure 7 As shown, an active blade 2 and a plurality of driven blades 3 located on the upper and lower sides of the active blade 2 are rotatably arranged in the middle cavity of the grille body 1, and the active blade 2 is connected to the plurality of driven blades 3 on the upper and lower sides through connecting rods 6 respectively; two mounting beams are arranged in the middle of the middle cavity, and the mounting beams are rotatably connected to the active blade 2 and the driven blade 3 respectively. Furthermore, the main material thickness of the active blade 2 and the driven blade 3 gradually changes from 4.0 mm to 2.0 mm from the center of the axis to the upper and lower sides, respectively, and the inner sides of the active blade 2 and the driven blade 3 are respectively provided with cross-shaped ribs 17. The connection structure and driving structure of the active blade 2, the driven blade 3 and the connecting rod 6 are prior art, such as the structural features recorded in CN218257723U, and are not the main improvement points of the present invention, so they will not be repeated.

[0025] like Figure 7 As shown, latches 19 are respectively provided at both ends of the active blade 2 and the driven blade 3, and rotating mounting holes are respectively provided on the side walls on both sides of the central cavity of the grille body 1; second connecting holes 20 are respectively provided on both sides of the middle of the active blade 2 and the driven blade 3 corresponding to the rotating shaft on the mounting beam, and first connecting holes 18 are provided in the middle of the active blade 2 and the driven blade 3 corresponding to the connecting rod 6.

[0026] The present invention improves the installation strength of the grille through the structural design of the reinforcement ribs of the grille body 1; the present invention improves the mechanical strength of the grille body 1 as a whole through the first reinforcement ribs 10 to the sixth reinforcement ribs 23 and the rectangular reinforcement structure 16; and further combined with the seventh reinforcement rib 24 and the local reinforcement structure 25 arranged on the cooling module air guide plate body 4, the use strength and impact resistance of the overall structure are effectively improved, and the mechanical impact of 50g acceleration can be effectively resisted. Secondly, the present invention can improve the overall first-order natural frequency through the diamond ribs 9 arranged on the upper side of the grille body 1, the rectangular cross ribs 15 arranged on the lower side, and the structure in which the grille body 1 is connected to the cooling module air guide plate body 4 through the first buckle connection hole 7 and the second buckle connection hole 12, and has good practicality.

[0027] Embodiment 2: like Figure 1-Figure 8 As shown, a high-strength active air intake grille structure includes: a grille body 1, active blades 2, driven blades 3, a cooling module air guide plate body 4, a front wind shield 5, a connecting rod 6, a first snap-on connecting hole 7, a screw hole 8, a diamond rib 9, a first reinforcing rib 10, a second reinforcing rib 11, a second snap-on connecting hole 12, a snap-on hole 13, a third reinforcing rib 14, a rectangular cross rib 15, a rectangular reinforcing structure 16, a M-shaped rib 17, a first connecting hole 18, a latch 19, a second connecting hole 20, a fourth reinforcing rib 21, a fifth reinforcing rib 22, a sixth reinforcing rib 23, a seventh reinforcing rib 24, and a local reinforcing structure 25.

[0028] In this embodiment, Figure 1-Figure 3 As shown, the grille body 1 is connected to the cooling module air guide plate body 4 through the first snap-fit ​​connection holes 7 distributed on the upper side, the second snap-fit ​​connection holes 12 distributed on both sides and the screw holes 8 distributed along the U-shape at the bottom. The grille body 1 is connected to the front windshield 5 through a plurality of snap-fit ​​holes 13 distributed on the upper and lower sides, thereby improving the overall first-order natural frequency of the active air intake grille.

[0029] In this embodiment, Figure 1 , Figure 2 and Figure 7 As shown, the material of the grille body 1 is polypropylene with 30% long glass fiber added (i.e. PP+LGF30), the main material thickness is 2.5 mm, the grille body 1 is connected to the active blade 2 and the driven blade 3 through the pin 19 and the second connecting hole 20, and the connecting rod 6 is connected to the active blade 2 and the driven blade 3 through the first connecting hole 18, thereby improving the overall rigidity of the active air intake grille.

[0030] In this embodiment, Figure 1 and Figure 7As shown, the thickness of the main material of the active blade 2 and the driven blade 3 gradually changes from 4.0 mm to 2.0 mm from the center of the axis to the upper and lower sides, and a cross-shaped rib 17 with a thickness of 1.5 mm is arranged on the inside to improve the overall rigidity of the blade and prevent the grille from leaking when it is subjected to wind load or flooding. In this embodiment, Figure 1 and Figure 7 As shown, the length of the latch pins 19 on the active blades 2 and the driven blades 3 is 12 mm, which can prevent the blades from being separated from the grille body when being wind-loaded or flooded.

[0031] In this embodiment, Figure 3-Figure 6 As shown, a first reinforcing rib 10 and a second reinforcing rib 11 are arranged on the left and right sides of the grille body 1 respectively, and the thickness of the first reinforcing rib 10 and the second reinforcing rib 11 are 2.5 mm, thereby improving the overall mechanical impact resistance of the active air intake grille.

[0032] In this embodiment, Figure 3 and Figure 5 As shown, diamond ribs 9 with a thickness of 2.0 mm are arranged on the upper side of the grille body 1, and rectangular cross ribs 15 with a thickness of 2.0 mm are arranged on the lower side. A plurality of third reinforcing ribs are arranged in the middle of the upper side of the grille body to improve the overall rigidity of the active air intake grille body.

[0033] In this embodiment, rectangular reinforcement structures 16 are arranged at both ends of the upper side of the grille body 1, with a thickness of 3.0 mm and a height distance of 12 mm-15 mm from the center of the second snap connection hole 12. Reinforcing ribs are arranged inside the rectangular reinforcement structure 16, with a thickness of 2.5 mm, thereby improving the overall mechanical impact resistance of the active air intake grille.

[0034] In this embodiment, Figure 6 As shown, the inner side of the grille body 1 is respectively arranged with a fourth reinforcing rib 21, a fifth reinforcing rib 22, and a sixth reinforcing rib 23, the thickness of the fourth reinforcing rib 21 and the sixth reinforcing rib 23 is 2.5 mm, and the thickness of the fifth reinforcing rib 22 is 3.5 mm. Figure 8 As shown, the seventh reinforcing ribs 24 with a thickness of 2.5 mm are arranged on the left and right sides of the cooling module air guide plate body 4, and local reinforcing structures 25 are respectively provided at the connection between the left and right sides of the cooling module air guide plate body 4 and the grille body 1. The thickness of the local reinforcing structure 25 is 3.5 mm-4.0 mm, which improves the overall mechanical impact resistance of the active air intake grille.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A high-strength active air intake grille structure, characterized in that: The invention comprises a grille body (1) and a cooling module air guide plate body (4), wherein the grille body (1) is mounted at the lower end of the cooling module air guide plate body (4); reinforcing ribs are arranged along the periphery of the grille body (1); a plurality of rhombus ribs (9) and rectangular cross ribs (15) are arranged on the upper and lower sides of the grille body (1); a plurality of third reinforcing ribs (14) are arranged in the middle of the upper side of the grille body (1); and rectangular reinforcing structures (16) are arranged at both ends of the upper side of the grille body (1); reinforcing ribs are arranged inside the rectangular reinforcing structures (16).

2. A high-strength active air intake grille structure according to claim 1, characterized in that: The top and both sides of the grille body (1) are respectively provided with a first connection portion and a second connection portion, and the first connection portion and the second connection portion are respectively connected to the cooling module air guide plate body (4) through a first snap connection hole (7) and a second snap connection hole (12).

3. The high-strength active air intake grille structure according to claim 2, characterized in that: A U-shaped mounting frame is arranged on the outer side of the lower part of the grille body (1), and two sides of the mounting frame are respectively connected to the second connecting portion, and the lower ends of the mounting frame and the cooling module air guide plate body (4) are respectively provided with a plurality of screw holes (8) distributed in a U-shape.

4. The high-strength active air intake grille structure according to claim 3, characterized in that: A first reinforcing rib (10) and a second reinforcing rib (11) are respectively provided between the second connection portion and the mounting frame and at the mounting end of the mounting frame.

5. The high-strength active air intake grille structure according to claim 3, characterized in that: A fourth reinforcing rib (21) is provided between the inner bottom of the grille body (1) and the mounting frame, and a fifth reinforcing rib (22) and a sixth reinforcing rib (23) are provided between the inner ends of the grille body (1) and the mounting frame, respectively.

6. The high-strength active air intake grille structure according to claim 3, characterized in that: A plurality of seventh reinforcing ribs (24) are respectively provided on the left and right sides of the cooling module air guide plate body (4), and a local reinforcing structure (25) is respectively provided between the left and right sides of the cooling module air guide plate body (4) and the screw holes (8) on the same side.

7. The high-strength active air intake grille structure according to claim 1, characterized in that: The thickness of the diamond ribs (9) and the rectangular cross ribs (15) is 2.0 mm respectively, and the thickness of the first reinforcing ribs (10), the second reinforcing ribs (11), the third reinforcing ribs (14) and the reinforcing ribs inside the rectangular reinforcing structure (16) is 2.5 mm respectively.

8. The high-strength active air intake grille structure according to claim 1, characterized in that: A front windshield (5) is installed on the front side of the grille body (1), and the front windshield (5) comprises a mounting frame and windshield plates located at both ends of the mounting frame. The upper and lower sides of the grille body (1) are respectively provided with clamping holes (13) connected to the mounting frame along the length direction.

9. The high-strength active air intake grille structure according to claim 1, characterized in that: An active blade (2) and a plurality of driven blades (3) located on upper and lower sides of the active blade (2) are rotatably arranged in the middle cavity of the grille body (1); the active blade (2) is respectively connected to the plurality of driven blades (3) on the upper and lower sides via connecting rods (6); and two mounting beams are arranged in the middle of the middle cavity, and the mounting beams are respectively rotatably connected to the active blade (2) and the driven blade (3).

10. The high-strength active air intake grille structure according to claim 9, characterized in that: The main material thickness of the active blade (2) and the driven blade (3) changes gradually from 4.0 mm to 2.0 mm from the center of the axis to the upper and lower sides, respectively. The inner sides of the active blade (2) and the driven blade (3) are respectively provided with a cross-shaped rib (17).

Images