Air-inlet grille, bumper and vehicle

Abstract

The invention belongs to the technical field of automobiles, and provides an air-inlet grille, a bumper and a vehicle. The air-inlet grille comprises a base plate and a driving motor; the driving motor is mounted at a preset symmetry axis on the surface of the substrate; each installation position of the base plate is provided with a transmission mechanism and a plurality of grating blades, and the grating blades are located in the grating windows corresponding to the installation positions. And the transmission mechanism is connected with the driving motor on one hand, is connected with the grille blades on the other hand, and is used for transmitting power of the driving motor to enable part of the grille blades to turn over in the grille window and enable the rest of the grille blades to translate in the grille window at the same time. According to the air-inlet grille, the non-division grille blades are designed to be in a translational motion form, so that the occupation of the air-inlet grille to the space of an engine compartment is remarkably reduced; compared with the design that a large overturning activity space needs to be reserved in a traditional overturning type grille blade, the translation type grille blade only needs to do linear motion, the motion trail is more compact, extra space does not need to extend into an engine compartment, and the space allowance of the engine compartment is effectively released.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, and specifically relates to an air intake grille, bumper, and vehicle. Background Technology

[0002] Unlike built-in active grilles, external active grilles directly replace fixed front grilles. They can actively open and close according to thermal management needs to achieve the optimal operating temperature of the front compartment, while reducing wind resistance and improving range when closed.

[0003] However, existing external active air intake grille designs typically use one or more sets of blades on one side. 1. When one set of blades is open, the overall width is too large, encroaching on the X-axis layout space of the engine compartment and exposing too much of it, which seriously affects the appearance; 2. When two or more sets of blades are open, the thickness of multiple sets of blades will obstruct a large portion of the air intake area, and the overall shape will appear crowded. Summary of the Invention

[0004] To address the problems in the background art, the present invention proposes an air intake grille, a bumper, and a vehicle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This application provides an air intake grille, including: The substrate has a plurality of symmetrical grid windows on its surface, and mounting positions corresponding to each grid window. The mounting positions are symmetrically distributed, and each mounting position is located on one side of the corresponding grid window. The drive motor is mounted at a predetermined axis of symmetry on the surface of the substrate; Each mounting position on the substrate is equipped with a transmission mechanism and several grid blades, and the grid blades are all located in the grid window corresponding to the mounting position; the transmission mechanism is connected to the drive motor. The transmission mechanism is also connected to the grille blades to transmit the power of the drive motor to rotate some of the grille blades within the grille window, while simultaneously causing the remaining grille blades to translate within the grille window.

[0006] Furthermore, the substrate has two grid windows and two mounting positions.

[0007] Furthermore, the grid blades include a first grid blade, a second grid blade, and a third grid blade; The second grille leaf is located in the center of the grille window, with a flip angle of 0-90°; The first and third grid blades are arranged symmetrically with the second grid blade as the center.

[0008] Furthermore, the drive mechanism includes: Two guide bars are provided, one on each side of the grille window; the guide bars are rotatably connected to the second grille leaf and slidably connected to the first and third grille leaves respectively; The linkage assembly includes a first link, a second link, and a third link that are rotatably connected in sequence, wherein the end of the first link away from the second link is rotatably connected to a first grid leaf; The second driven rod is fixedly installed at the center of the second connecting rod. One end of the second driven rod passes through the corresponding guide strip and is fixedly connected to the second grid leaf, and the other end is connected to the drive motor. The end of the third link furthest from the second link is rotatably connected to the third grid leaf.

[0009] Furthermore, several first driven rods are fixedly connected to both ends of the first grid leaf. Each first driven rod is slidably engaged with a corresponding guide bar, and the first driven rod closest to the connecting rod assembly is rotatably connected to the first connecting rod. Several third driven rods are fixedly connected to both ends of the third grid leaf. Each third driven rod is slidably engaged with the corresponding guide bar, and the first driven rod closest to the connecting rod assembly is rotatably connected to the third connecting rod.

[0010] Furthermore, two first driven rods are fixedly connected to both ends of the first grid blade; Two third driven rods are fixedly connected to both ends of the third grille blade.

[0011] Furthermore, symmetrical guide grooves are formed on the surface of the guide bar, and the guide grooves are slidably connected to the corresponding first driven rod and third driven rod respectively.

[0012] This application also provides a bumper, including a bumper body, on one surface of which an air intake grille as described above is mounted.

[0013] Furthermore, an air intake window is provided on the surface of the bumper body, which corresponds to the grille window, and the bumper body is connected to the base plate by several screws.

[0014] This application also provides a vehicle equipped with one of the above-mentioned bumpers; The vehicle is equipped with a temperature control module, which is electrically connected to the drive motor.

[0015] The beneficial effects of this invention are: 1. By designing some grille blades to move in a translational motion, this invention significantly reduces the encroachment of the air intake grille on the engine compartment space. Compared with the traditional flip-type grille blades, which require a large space for flipping, the translational grille blades only need to move in a straight line, with a more compact movement trajectory. They do not need to extend extra space into the engine compartment, effectively freeing up space in the engine compartment. 2. The present invention uses a grille blade with a combined motion of flipping and translation, which can maximize the opening area of ​​the grille window. When the vehicle needs rapid ventilation and cooling, the drive motor drives the second grille blade to flip around the central axis to an angle parallel to the airflow direction (flipping 90°) through the transmission mechanism, minimizing the airflow resistance. At the same time, the first and third grille blades translate along the guide groove to both sides of the grille window, completely avoiding the airflow channel, so that the effective flow area of ​​the grille window is close to 100%.

[0016] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an air intake grille according to the present invention is shown; Figure 2 A schematic diagram of a transmission mechanism for an air intake grille according to the present invention is shown; Figure 3 It shows Figure 2 A magnified view of area A in the middle; Figure 4 A schematic diagram of the bumper structure when the grille blades of the present invention are closed is shown; Figure 5 A schematic diagram of the bumper structure when the grille blades of the present invention are partially open is shown; Figure 6 A schematic diagram of the bumper structure when the grille blades of the present invention are fully open is shown.

[0019] In the diagram: 1. Bumper body; 2. Base plate; 201. Grille window; 3. First grille leaf; 4. Second grille leaf; 5. Third grille leaf; 6. Drive motor; 7. First connecting rod; 8. Second connecting rod; 9. Third connecting rod; 10. First driven rod; 11. Second driven rod; 12. Third driven rod; 13. Guide bar; 14. Screw. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, an air intake grille includes a base plate 2, a drive motor 6, a transmission mechanism, and several grille blades. The base plate 2 is mounted on a bumper body 1, and its surface has several symmetrical grille windows 201, with corresponding mounting positions for each window. The mounting positions are symmetrically distributed, with each position located on one side of its corresponding grille window 201. The drive motor 6 is mounted at the center of symmetry on the surface of the base plate 2. Each mounting position on the base plate is equipped with a transmission mechanism and several grille blades, all located within the grille window 201 corresponding to that position. Furthermore, the drive motor 6 can be connected to the transmission mechanism, which in turn is connected to the grille blades. In operation, the drive motor 6 can drive some of the grille blades to rotate within the grille window 201 via the transmission mechanism, while the remaining grille blades can move vertically under the action of the drive motor 6, thereby controlling the opening of the air intake grille.

[0022] It should be noted that the number of grid windows 201 and mounting positions on the substrate 2 can be set to two, with the drive motor 6 located between the symmetrical grid windows 201; in addition, the drive motor 6, as an actuator, can be a bidirectional motor or a gear transmission, which transmits the power of the drive motor 6 to the bidirectional gear, and then from the bidirectional gear to the transmission mechanism.

[0023] like Figure 2 The grille blades are all installed within the grille window 201, including a first grille blade 3, a second grille blade 4, and a third grille blade 5. The second grille blade 4 is located at the center of the grille window 201, and the first grille blade 3 and the third grille blade 5 are symmetrically distributed around the second grille blade 4. The layout design of the three sets of grille blades not only ensures the complete coverage of the grille window 201, but also achieves multi-level adjustment of the air intake volume through differentiated movement modes (flipping and translation), providing a wider adjustment range compared to traditional grille blades with a single movement mode.

[0024] like Figure 3As shown, the transmission mechanism includes guide bars 13 and a connecting rod assembly. Two guide bars 13 are provided, respectively installed on both sides of the grille window 201. The surface of each guide bar 13 has symmetrical guide grooves 1301 and a circular hole located between the two guide grooves 1301. The circular hole of the guide bar 13 is rotatably connected to the second grille leaf 4 through a hole-shaft engagement, providing a support point for the flipping of the second grille leaf 4. Simultaneously, the guide bar 13 is slidably connected to the first driven rod 10 of the first grille leaf 3 and the third driven rod 12 of the third grille leaf 5 via the guide grooves 1301, providing a guiding path for the translation of the first and third grille leaves.

[0025] Furthermore, Figure 3 The linkage assembly includes a first link 7, a second link 8, and a third link 9 that are rotatably connected in sequence. The end of the first link 7 away from the second link 8 is rotatably connected to the first grille leaf 3. A second driven rod 11 is fixedly mounted at the center of the second link 8. One end of the second driven rod 11 passes through a corresponding guide strip 13 (rotatably engaging with a circular hole) and is fixedly connected to the second grille leaf 4 to drive the second link 8 to rotate. The other end of the second driven rod 11 is drive-connected to the drive motor 6 to transmit the power of the drive motor 6 to the second driven rod 11. The end of the third link 9 away from the second link 8 is rotatably connected to the third grille leaf 5.

[0026] It should be noted that each end of the first grid blade 3 is fixedly connected with a plurality of first driven rods 10, preferably two, and the first driven rod 10 closest to the connecting rod assembly is rotatably connected to the first connecting rod 7, while the remaining first driven rods 10 are slidably engaged with the guide groove 1301 of the guide bar 13; each end of the third grid blade 5 is fixedly connected with a plurality of third driven rods 12, preferably two, and the third driven rod 12 closest to the connecting rod assembly is rotatably connected to the third connecting rod 9, while the remaining third driven rods 12 are slidably engaged with the guide groove 1301 of the guide bar 13. The engagement of the driven rods with the guide groove 1301 ensures the smoothness and accuracy of the grid blade movement.

[0027] It should be further explained that the end of the second grille leaf 4 away from the second connecting rod 8 is fixedly connected to another second driven rod 11 so as to rotate and cooperate with the corresponding guide bar 13.

[0028] The movement modes of the aforementioned air intake grille are as follows: The flipping motion of the second grille blade 4: The second driven rod 11 is rotatably connected to the second grille blade 4, and the second driven rod 11 is driven by the drive motor 6 to rotate, which directly drives the second grille blade 4 to flip around its own central axis within the grille window 201. By changing the flipping angle, the angle between the grille blade and the airflow is changed, thereby adjusting the intake resistance. Translational movement of the first grille blade 3 and the third grille blade 5: The first driven rod 10 and the third driven rod 12 are both embedded in the guide groove 1301 of the guide strip 13. When driven by the linkage assembly, they can only translate along the trajectory of the guide groove 1301, thereby driving the first grille blade 3 and the third grille blade 5 to translate linearly within the grille window 201. The translational movement is simultaneous with the flipping movement of the second grille blade 4. When a large air intake is required, the second grille blade 4 flips to a state parallel to the airflow, and the first grille blade 3 and the third grille blade 5 translate to both sides to maximize the opening of the grille window 201; when a small air intake or closure is required, the second grille blade 4 flips to a state perpendicular to the airflow, and the first grille blade 3 and the third grille blade 5 translate towards the center to narrow the flow channel.

[0029] like Figure 4 As shown, a bumper includes a bumper body 1. One surface of the bumper body 1 has an air intake window corresponding to the grille window 201 of the air intake grille, ensuring that airflow can smoothly pass through the bumper and enter the grille window 201. The bumper body 1 is fixedly connected to the base plate 2 of the air intake grille by a number of screws 14. The connection method is firm and reliable, and also facilitates disassembly and maintenance.

[0030] It should be noted that during assembly, the drive motor 6 is first assembled to the base plate 2 using its own limiting structure and fastening screws. Then, the second grille leaf 4 passes through the hole in the base plate 2 for X / Z-direction limiting, and its end is fixed in the Y-direction by the second driven rod 11. Next, the first connecting rod 7 and the third connecting rod 9 are connected to the corresponding driven rods via pin structures. The two guide rails on one side are connected to the base plate 2 by fastening screws. Finally, the entire air intake grille is fixed to the front bumper body 1 by screws 14.

[0031] A vehicle is equipped with the aforementioned bumper and has an internal temperature control module. This temperature control module is electrically connected to the drive motor 6 of the air intake grille, and can monitor the temperature of relevant vehicle components (such as the engine and battery) or the interior temperature in real time. Based on a preset temperature threshold, it sends a control signal to the drive motor 6 to adjust its operating state, thereby controlling the movement amplitude of the grille blades and achieving intelligent adjustment of the air intake volume, ensuring the vehicle is always in a suitable operating temperature environment.

[0032] When the vehicle is running, the temperature control module monitors the temperature data in real time. When the detected temperature exceeds a preset threshold, the temperature control module sends a start signal to the drive motor 6, which then starts and outputs power to the second driven rod 11 at the center of the second linkage 8. Figure 5As shown, on one hand, the second driven rod 11 drives the second connecting rod 8 to rotate, and the second connecting rod 8 drives the first connecting rod 7 and the third connecting rod 9 to move through the rotational connection points at both ends respectively; the first connecting rod 7 pulls the first driven rod 10 of the first grille leaf 3 to slide along the guide groove 1301 of the guide bar 13, so that the first grille leaf 3 moves upward within the grille window 201, and the third connecting rod 9 pulls the third driven rod 12 of the third grille leaf 5 to slide along the guide groove 1301, so that the third grille leaf 5 moves downward, increasing the ventilation area of ​​the grille window 201; on the other hand, the second driven rod 11 directly drives the second grille leaf 4 to rotate around its rotational connection point with the guide bar 13, further expanding the ventilation channel, and finally reaching the fully open state as shown. Figure 6 As shown, at this time, the second grille blade 4 is in a state parallel to the airflow, and the first grille blade 3 and the third grille blade 5 are completely hidden behind the bumper body 1. When the temperature control module detects that the temperature is below the preset threshold, the drive motor 6 reverses its rotation, which in turn drives the second connecting rod 8 to rotate in the opposite direction via the second driven rod 11. This, in turn, pulls the first grille blade 3 and the third grille blade 5 to move in the opposite direction, while simultaneously causing the second grille blade 4 to flip in the opposite direction, reducing the ventilation area of ​​the grille window 201 until the preset air intake requirement is met. Throughout the process, because both the grille blades and the transmission mechanism adopt a symmetrical design, the airflow is more uniform, effectively improving the stability of the vehicle's temperature control.

[0033] The aforementioned air intake grille can be automatically opened and closed via the vehicle temperature control module, and can be opened at any desired angle (0-90°). When fully closed, it can optimize wind resistance and maintain dynamic temperature balance in the engine compartment; and when fully open, only the middle second grille leaf 4 is exposed, while the first grille leaf 3 and the third grille leaf 5 are hidden to maximize air intake area for heat dissipation, while ensuring the best styling and appearance quality.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air intake grille, characterized in that, include: The substrate (2) has a plurality of symmetrical grid windows (201) on its surface, and mounting positions corresponding to each grid window (201). The mounting positions are symmetrically distributed, and each mounting position is located on one side of the corresponding grid window (201). The drive motor (6) is mounted at the center of symmetry on the surface of the substrate (2); Each mounting position of the substrate (2) is equipped with a transmission mechanism and several grid blades, and the grid blades are all located in the grid window (201) corresponding to the mounting position; the transmission mechanism is connected to the drive motor (6); The transmission mechanism is also connected to the grille blades to transmit the power of the drive motor (6) to make some of the grille blades flip within the grille window (201) while making the remaining grille blades translate within the grille window (201).

2. An air intake grille according to claim 1, characterized in that, The substrate (2) has two grid windows (201) and two mounting positions.

3. An air intake grille according to claim 1, characterized in that, The grid blades include a first grid blade (3), a second grid blade (4), and a third grid blade (5); The second grille leaf (4) is located at the center of the grille window (201) and has a flip angle of 0-90°; The first grid leaf (3) and the third grid leaf (5) are arranged symmetrically with the second grid leaf (4) as the center.

4. An air intake grille according to claim 3, characterized in that, The drive mechanism includes: Two guide bars (13) are provided and are respectively installed on both sides of the grille window (201); the guide bars (13) are rotatably connected to the second grille leaf (4) and slidably connected to the first grille leaf (3) and the third grille leaf (5) respectively; The linkage assembly includes a first link (7), a second link (8) and a third link (9) that are rotatably connected in sequence, wherein the end of the first link (7) away from the second link (8) is rotatably connected to the first grid leaf (3); The second driven rod (11) is fixedly installed at the center of the second connecting rod (8). One end of the second driven rod (11) passes through the corresponding guide strip (13) and is fixedly connected to the second grille leaf (4), and the other end is connected to the drive motor (6) for transmission. The end of the third link (9) away from the second link (8) is rotatably connected to the third grid leaf (5).

5. An air intake grille according to claim 4, characterized in that, Both ends of the first grid leaf (3) are fixedly connected with a number of first driven rods (10). The first driven rods (10) are all slidably engaged with the corresponding guide strips (13), and the first driven rod (10) closest to the connecting rod assembly is rotatably connected to the first connecting rod (7). Several third driven rods (12) are fixedly connected to both ends of the third grid leaf (5). The third driven rods (12) are all slidably engaged with the corresponding guide strips (13), and the first driven rod (12) closest to the connecting rod assembly is rotatably connected to the third connecting rod (9).

6. An air intake grille according to claim 5, characterized in that, Two first driven rods (10) are fixedly connected to both ends of the first grid leaf (3); Two third driven rods (12) are fixedly connected to both ends of the third grille leaf (5).

7. An air intake grille according to claim 5, characterized in that, The guide bar (13) has symmetrical guide grooves (1301) on its surface, and the guide grooves (1301) are slidably connected to the corresponding first driven rod (10) and third driven rod (12).

8. A bumper, characterized in that, Includes a bumper body (1), on one surface of which is mounted an air intake grille as described in any one of claims 1-7.

9. A bumper according to claim 8, characterized in that, The bumper body (1) has an air intake window on its surface, which corresponds to the grille window (201), and the bumper body (1) is connected to the base plate (2) by a number of screws (14).

10. A vehicle, characterized in that, The vehicle is equipped with a bumper as described in claim 8 or 9; The vehicle is equipped with a temperature control module, which is electrically connected to the drive motor (6).

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