Automobile grille capable of adjusting air inflow

Abstract

The invention relates to the technical field of air inlet of automobile grilles, in particular to an automobile grille capable of adjusting the air inlet amount. Comprising a grating frame, a plurality of horizontal blade plates are arranged in the grating frame, a transverse driving device is arranged on the grating frame, horizontal shafts are arranged at the tops of the blade plates, and the transverse driving device can drive the blade plates to turn around the horizontal shafts; air inducing grooves are formed in the blade plates in the length direction, blades are installed in the grooves, center shafts perpendicular to the horizontal shaft are arranged on the back faces of the blades, and each blade plate is provided with a longitudinal driving device which can control the blades on the same blade plate to synchronously rotate around the center shafts of the blades. The functions of changing the opening degree of the whole air inlet channel and finely adjusting the airflow direction and the local air inlet amount are achieved through blade plate overturning coarse adjustment and blade rotating fine adjustment, the air inlet amount is finely adjusted, airflow can be directionally guided to an engine or a battery or other target heat dissipation areas, the scene adaptability is improved, and different heat dissipation requirements of a fuel vehicle and a new energy automobile are met.

Description

Technical Field

[0001] This invention relates to the field of automotive grille air intake technology, specifically to automotive grilles with adjustable air intake. Background Technology

[0002] During vehicle operation, the grille, as a key component for airflow exchange between the engine compartment and the outside environment, needs to dynamically match intake requirements according to different operating conditions. However, traditional automotive grilles have significant technical limitations: First, their adjustment capabilities are limited, mostly consisting of fixed structures or only single-stage adjustments (such as only blade rotation), which can easily lead to problems such as insufficient heat dissipation at low speeds, excessive wind resistance at high speeds, or excessive heat loss in winter. Second, their intake control precision is low, only allowing for coarse adjustments to the grille opening and closing degree, and failing to guide airflow direction according to the micro-heat dissipation needs of different components such as the engine and battery. These problems make it difficult for traditional grilles to balance the vehicle's heat dissipation efficiency, energy economy, and durability, and they cannot meet the refined requirements of modern vehicles (especially new energy vehicles and high-performance vehicles). Summary of the Invention

[0003] Therefore, it is necessary to provide an automotive grille with adjustable air intake to address the existing technical problems.

[0004] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: This invention provides an adjustable air intake car grille, including a grille frame with a plurality of horizontally arranged blades arranged sequentially from top to bottom within the grille frame. A transverse drive device is installed on the grille frame, and a horizontal shaft is installed on the top of each blade. The transverse drive device can drive the plurality of blades to rotate around the axis of the horizontal shaft. An air intake groove is formed on the blade along its length direction, and a blade is installed in the air intake groove. A central shaft perpendicular to the horizontal shaft is provided on the back of the blade, and the central shaft is located at the center of the blade in the horizontal direction. A longitudinal drive device is installed on each blade, and the longitudinal drive device on the same blade controls the blades on the same blade to rotate synchronously around their own central shaft.

[0005] Preferably, the grid frame consists of a central frame and two frames located on both sides of the central frame. The transverse drive device is installed on the central frame, and several blades are symmetrically divided into two groups and rotatably installed in the two frames respectively.

[0006] Preferably, the lateral drive device includes a first drive motor, a first transmission rod, and a first hinge rod. The first drive motor is fixedly installed inside the center frame. Each horizontal shaft has a first hinge rod installed at its end near the center frame. The output end of the first drive motor is connected to one of the horizontal shafts. The end of each first hinge rod away from the horizontal shaft is hinged to the first transmission rod.

[0007] On the other hand, there are at least two sets of lateral drive devices that are evenly distributed along the vertical direction of the central frame. Several horizontal shafts are divided into multiple groups and correspond one-to-one with at least two sets of lateral drive devices. The lateral drive device includes a second drive motor, a second transmission rod, and a second hinge rod. The second drive motor is mounted on the side plate of the central frame, and the output end of the second drive motor is connected to one of the corresponding multiple horizontal shafts. Each horizontal shaft is hinged with a second hinge rod, and the second transmission rod is hinged to the end of several corresponding second hinge rods away from the horizontal shaft.

[0008] Preferably, the blade has multiple blades along its length, and the longitudinal drive device is connected to the multiple blades located on the same blade.

[0009] On the other hand, there are several air ducts on the blade along the length of the blade, and each air duct has a blade. Two blades are separated by a spacer. There are overlapping plates on both sides of the blade along the length direction. One overlapping plate is located on the front of the blade and the other overlapping plate is located on the back of the blade. When the blade is parallel to the blade, the overlapping plates on both sides are in contact with the spacer.

[0010] On the other hand, the air intake slot on the blade is a long strip-shaped slot that is consistent with the length direction of the blade. Several blades are arranged sequentially along the length direction in the air intake slot, and two adjacent blades are attached to each other by an overlap plate.

[0011] Preferably, the longitudinal drive device includes a third drive motor, a third transmission rod, and a third hinge rod. The third drive motor is fixedly installed at one end of the blade, the third transmission rod is horizontally arranged on the back of the blade, and a corresponding third hinge rod is hinged to the central shaft of each blade. The third transmission rod is hinged to several third hinge rods on the same blade.

[0012] Preferably, the bottom of the blade is provided with a tail section, and the top of the blade is provided with an arc groove section that matches the tail section. When the blade is in the vertical position, the tail sections and arc groove sections of two adjacent blades are in contact with each other.

[0013] Preferably, each blade has a reinforcing rib on its back.

[0014] The advantages of this invention compared to the prior art are: This invention uses a combination of coarse adjustment by blade flipping and fine adjustment by blade rotation to precisely adjust the ventilation intake volume. The blade flips laterally to change the overall opening and closing of the intake channel, while the blade rotates longitudinally to finely adjust the airflow direction and local intake volume, directing the airflow to the target heat dissipation area such as the engine or battery. This improves the adaptability to different scenarios and is suitable for the different heat dissipation needs of fuel vehicles and new energy vehicles. Attached Figure Description

[0015] Figure 1 This is a 3D schematic diagram of a car grille with adjustable air intake. Figure 1 ; Figure 2 This is a 3D schematic diagram of a car grille with adjustable air intake. Figure 2 ; Figure 3 This is a partial three-dimensional structural diagram of an adjustable air intake car grille. Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a three-dimensional structural diagram of the leaf plate in an adjustable air intake car grille. Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 This is a partial three-dimensional structural schematic diagram of an adjustable air intake car grille according to Embodiment 3; Figure 8 This is a three-dimensional structural schematic diagram of the lateral drive device in Embodiment 2 of an adjustable air intake car grille; Figure 9 This is a three-dimensional structural diagram of the blades in an adjustable air intake car grille. Figure 10 This is a side view of the center vane of an adjustable air intake car grille.

[0016] The numbers on the map are: 1. Grille frame; 2. Blade; 3. Lateral drive device; 4. Horizontal shaft; 5. Air intake duct; 6. Blade; 7. Central shaft; 8. Longitudinal drive device; 9. Central frame; 10. Frame; 11. First drive motor; 12. First transmission rod; 13. First hinge rod; 14. Second drive motor; 15. Second transmission rod; 16. Second hinge rod; 17. Spacer bar; 18. Overlap plate; 19. Third drive motor; 20. Third transmission rod; 21. Third hinge rod; 22. Wing tail section; 23. Arc groove section; 24. Reinforcing rib. Detailed Implementation

[0017] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-10The adjustable air intake car grille shown includes a grille frame 1, within which several horizontally arranged blades 2 are arranged sequentially from top to bottom. A transverse drive device 3 is installed on the grille frame 1. A horizontal shaft 4 is installed on the top of each blade 2. The transverse drive device 3 can drive several blades 2 to rotate around the axis of the horizontal shaft 4. An air intake groove 5 is opened on the blade 2 along its length direction. A blade 6 is installed in the air intake groove 5. A central shaft 7 perpendicular to the horizontal shaft 4 is provided on the back of the blade 6. The central shaft 7 is located at the center of the blade 6 in the horizontal direction. A longitudinal drive device 8 is installed on each blade 2. The longitudinal drive device 8 on the same blade 2 controls the blades 6 on the same blade 2 to rotate synchronously around their own central shaft 7.

[0019] Traditional automotive grilles are mostly fixed structures or only have single-stage adjustment, such as only the blades 2 flipping. This makes it impossible to precisely control the air intake according to different operating conditions of the vehicle, such as the need for more air intake for heat dissipation at low speeds, less air intake to reduce wind resistance at high speeds, and less air intake to maintain coolant temperature in winter. This can easily lead to insufficient heat dissipation or excessive wind resistance. The automotive grille of this invention uses a transverse drive device 3 to drive several blades 2 within the grille frame 1 to flip synchronously around a horizontal axis 4. By changing the angle between the blades 2 and the airflow, the opening and closing degree of the overall air intake channel of the grille is adjusted. Simultaneously, the longitudinal drive device 8 on each blade 2 can control the blades 6 within its own air intake slot 5 to rotate synchronously around a central axis 7, further fine-tuning the angle between the blades 6 and the airflow. This, combined with the flipping of the blades 2, achieves dual adjustment of the air intake. This adjustment method allows for simultaneous adjustment of the tilt angle of the blades 6 on the blade 2 during blade 2 adjustment. Subsequently, the deflection angle of the blades 6 can be adjusted individually according to actual heat dissipation needs, thereby controlling the airflow direction and guiding the airflow to the area requiring heat dissipation. This method can improve the fine control of air intake under the same wind conditions, and can flexibly match the air intake demand according to the real-time operating conditions. At low speeds, it maximizes air intake to meet heat dissipation, and at high speeds, it minimizes air intake to reduce wind resistance, thus balancing heat dissipation efficiency and energy economy.

[0020] The grid frame 1 consists of a central frame 9 and two frames 10 located on both sides of the central frame 9. The transverse drive device 3 is installed on the central frame 9, and several blades 2 are symmetrically divided into two groups and rotatably installed in the two frames 10 respectively.

[0021] This design allows for more precise adjustment of the airflow direction at the same horizontal level via blades 6, enhancing the airflow regulation function. Furthermore, the symmetrical layout ensures more even force distribution on the blades 2, and the split structure facilitates assembly and maintenance, ensuring consistent movement of the symmetrical blades 2. Additionally, the angle of blades 6 can be flexibly adjusted according to actual operating conditions; the symmetrical blades 6 on both sides can deflect at different angles, making it easier for airflow to reach the areas requiring heat dissipation, further improving the heat dissipation effect.

[0022] The transverse drive device 3 includes a first drive motor 11, a first transmission rod 12 and a first hinge rod 13. The first drive motor 11 is fixedly installed in the center frame 9. Each horizontal shaft 4 has a first hinge rod 13 installed at its end near the center frame 9. The output end of the first drive motor 11 is connected to one of the horizontal shafts 4. The end of each first hinge rod 13 away from the horizontal shaft 4 is hinged to the first transmission rod 12.

[0023] In this first embodiment, all blades 2 can quickly and synchronously rotate at the same angle. After the first drive motor 11 starts, it drives a horizontal shaft 4 connected to it to rotate. This horizontal shaft 4 pulls the first transmission rod 12 through the first hinge rod 13. The first transmission rod 12 then links all the horizontal shafts 4 to rotate synchronously through other first hinge rods 13, ultimately achieving synchronous rotation of all blades 2. A single motor drives multiple blades 2, resulting in a simple structure, stable synchronization, and rapid synchronous rotation of the blades 2, allowing for quick adaptation to changes in operating conditions.

[0024] In actual driving, when encountering poor road conditions, gravel, or strong winds, the single-motor drive in Embodiment 1 causes all blades 2 to deflect synchronously. In harsh driving environments, the ventilation position below is adaptively closed. Therefore, Embodiment 2 is provided. The lateral drive device 3 is provided in at least two sets and is evenly distributed along the vertical direction of the central frame 9. Several horizontal shafts 4 are divided into multiple groups and correspond one-to-one with at least two sets of lateral drive devices 3. The lateral drive device 3 includes a second drive motor 14, a second transmission rod 15, and a second hinge rod 16. The second drive motor 14 is mounted on the side plate of the central frame 9, and the output end of the second drive motor 14 is connected to one of the corresponding multiple horizontal shafts 4. Each horizontal shaft 4 is hinged with a second hinge rod 16. The second transmission rod 15 is hinged to the end of several corresponding second hinge rods 16 away from the horizontal shaft 4.

[0025] In Embodiment Two, multiple sets of lateral drive devices 3 are evenly distributed vertically. During driving on dusty roads, as the amount of sand and gravel blown up by the wind gradually decreases from the ground upwards, a certain level of ventilation and heat dissipation is needed to reduce the entry of sand and other debris into the vehicle body. Based on actual needs, the lower lateral drive device 3 is activated, actively closing the lower blade 2, changing the entire car grille to one with upper air intake and lower obstruction. The lower windbreak area is adaptively adjusted according to actual requirements. In new energy vehicles, at high speeds, to reduce wind resistance and energy consumption, if the grille is completely open, air will violently enter the engine compartment, generating significant turbulence and resistance. Cooling of the new energy vehicle's battery system is also necessary. In this case, the upper lateral drive device 3 drives the lower blade 2 to a closed state, while the lower lateral drive device 3 drives the lower blade 2 to open, introducing air into the battery system for cooling. This design offers more flexible air intake adjustment, reduced energy consumption, strong adaptability, and good self-protection.

[0026] Multiple blades 6 are provided on the blade plate 2 along its length direction, and the longitudinal drive device 8 is connected to the multiple blades 6 located on the same blade plate 2.

[0027] By adjusting the air intake volume within the range of a single blade 2 by changing the angle of the blade 6, combined with the overall rotation of blade 2, a combination of coarse and fine adjustment can be achieved. This improves the accuracy of air intake volume adjustment, allowing for precise matching of the micro-heating requirements of different components such as the engine and battery, thereby enhancing heat dissipation.

[0028] The blade 2 has several air ducts 5 along its length. Each air duct 5 has a blade 6. Two blades 6 are separated by a spacer 17. Both sides of the blade 6 are provided with overlapping plates 18 along its length. One overlapping plate 18 is located on the front of the blade 6, and the other overlapping plate 18 is located on the back of the blade 6. When the blade 6 is parallel to the blade 2, both overlapping plates 18 are in contact with the spacer 17.

[0029] The double-sealed front and rear overlap plates 18 reduce air leakage and lower the drag coefficient at high speeds, improving fuel economy. The spacer 17 separates the blades 6, preventing deformation of a single blade 6 from affecting adjacent blades 6 and enhancing overall stability.

[0030] In Embodiment 2 of this invention, multiple independent air intake slots 5 are used. However, the spacers 17 occupy part of the air intake area, resulting in a reduction in the effective air intake volume, which affects the high heat dissipation requirements of high-performance vehicles. Therefore, this invention designs the following structure. The air duct 5 on the blade 2 is a long strip-shaped duct that is consistent with the length direction of the blade 2. Several blades 6 are arranged in sequence along the length direction inside the air duct 5. Two adjacent blades 6 are attached to each other by an overlap plate 18.

[0031] In Embodiment 3 of the present invention, the partition strip 17 is reduced compared to Embodiment 2. In this method, the elongated air intake slot 5 is not obstructed by the partition strip 17, and the effective air intake area is increased compared to the independent air intake slot 5. The blades 6 are continuously arranged, making the airflow smoother and reducing airflow noise.

[0032] The longitudinal drive device 8 includes a third drive motor 19, a third transmission rod 20, and a third hinge rod 21. The third drive motor 19 is fixedly installed at one end of the blade 2. The third transmission rod 20 is horizontally arranged on the back of the blade 2. Each blade 6 has a central shaft 7 that is hinged to a corresponding third hinge rod 21. The third transmission rod 20 is hinged to several third hinge rods 21 on the same blade 2.

[0033] After the third drive motor 19 starts, it drives the third transmission rod 20 on the back of the blade 2 to move horizontally. The third transmission rod 20 pushes the central axis 7 of each blade 6 through several third hinge rods 21, so that all blades 6 rotate synchronously around their own central axis 7, thereby achieving uniform adjustment of the blade angle.

[0034] The bottom of the blade 2 is provided with a tail section 22, and the top of the blade 2 is provided with an arc groove section 23 that matches the tail section 22. The tail sections 22 and arc groove sections 23 of two adjacent blades 2 in the vertical state are in contact with each other.

[0035] When the blade 2 rotates around the horizontal axis 4 to a vertical position (grille closed or minimum air intake), the tail section 22 of the upper blade 2 will precisely fit with the arc groove section 23 of the lower blade 2 to form a continuous sealing surface, sealing the gap between adjacent blades 2.

[0036] Each blade 6 has a reinforcing rib 24 on its back.

[0037] The design of the reinforcing rib 24 enhances the structural strength of the blade 6, reduces the deformation of the blade 6 under the impact of high-speed airflow, and ensures the accuracy of the blade 6 angle adjustment.

[0038] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An adjustable air intake grille for automobiles, characterized in that, It includes a grid frame (1), and several horizontally arranged blades (2) are arranged in the grid frame (1) from top to bottom. A transverse drive device (3) is installed on the grid frame (1). A horizontal shaft (4) is installed on the top of each blade (2). The transverse drive device (3) can drive several blades (2) to rotate around the axis of the horizontal shaft (4). An air duct (5) is opened on the blade (2) along its length direction. A blade (6) is installed in the air duct (5). A central shaft (7) perpendicular to the horizontal shaft (4) is provided on the back of the blade (6). The central shaft (7) is located at the center of the blade (6) in the horizontal direction. A longitudinal drive device (8) is installed on each blade (2). The longitudinal drive device (8) on the same blade (2) controls the blades (6) on the same blade (2) to rotate synchronously around their own central shaft (7).

2. The adjustable air intake grille according to claim 1, characterized in that, The grid frame (1) consists of a central frame (9) and two frames (10) located on both sides of the central frame (9). A transverse drive device (3) is installed on the central frame (9). Several blades (2) are symmetrically divided into two groups and are rotatably installed in the two frames (10).

3. The adjustable air intake grille according to claim 2, characterized in that, The transverse drive device (3) includes a first drive motor (11), a first transmission rod (12) and a first hinge rod (13). The first drive motor (11) is fixedly installed in the center frame (9). Each horizontal shaft (4) has a first hinge rod (13) installed at the end of the side close to the center frame (9). The output end of the first drive motor (11) is connected to one of the horizontal shafts (4). The end of each first hinge rod (13) away from the horizontal shaft (4) is hinged to the first transmission rod (12).

4. The adjustable air intake grille according to claim 2, characterized in that, The transverse drive device (3) is provided in at least two sets and is evenly distributed along the vertical direction of the central frame (9). Several horizontal shafts (4) are divided into multiple groups and correspond one-to-one with at least two sets of transverse drive devices (3). The transverse drive device (3) includes a second drive motor (14), a second transmission rod (15) and a second hinge rod (16). The second drive motor (14) is mounted on the side plate of the central frame (9), and the output end of the second drive motor (14) is connected to one of the corresponding multiple horizontal shafts (4). Each horizontal shaft (4) is hinged with a second hinge rod (16). The second transmission rod (15) is hinged to one end of several corresponding second hinge rods (16) away from the horizontal shaft (4).

5. The adjustable air intake grille according to claim 1, characterized in that, Multiple blades (6) are provided on the blade (2) along its length direction, and the longitudinal drive device (8) is connected to the multiple blades (6) located on the same blade (2) in a transmission connection.

6. The adjustable air intake grille according to claim 5, characterized in that, The blade (2) has several air ducts (5) along the length of the blade (2). Each air duct (5) has a blade (6). Two blades (6) are separated by a spacer (17). Both sides of the blade (6) along the length are provided with overlapping plates (18). One overlapping plate (18) is located on the front of the blade (6), and the other overlapping plate (18) is located on the back of the blade (6). When the blade (6) is parallel to the blade (2), the overlapping plates (18) on both sides are in contact with the spacer (17).

7. The adjustable air intake grille according to claim 5, characterized in that, The air duct (5) on the blade (2) is a long strip groove that is consistent with the length direction of the blade (2). Several blades (6) are arranged in sequence along the length direction inside the air duct (5). Two adjacent blades (6) are attached to each other by a connecting plate (18).

8. The adjustable air intake grille according to claim 5, characterized in that, The longitudinal drive device (8) includes a third drive motor (19), a third transmission rod (20) and a third hinge rod (21). The third drive motor (19) is fixedly installed at one end of the blade (2). The third transmission rod (20) is horizontally set on the back of the blade (2). The central shaft (7) on each blade (6) is hinged with a corresponding third hinge rod (21). The third transmission rod (20) is hinged with several third hinge rods (21) on the same blade (2).

9. The adjustable air intake grille according to claim 1, characterized in that, The bottom of the blade (2) is provided with a tail section (22), and the top of the blade (2) is provided with an arc groove section (23) that matches the tail section (22). The tail section (22) and the arc groove section (23) of the two adjacent blades (2) in the vertical state are in contact with each other.

10. The adjustable air intake grille according to claim 5, characterized in that, Each blade (6) has a reinforcing rib (24) on its back.

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